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PA9702-SY 990129
FLOOD PLAIN DEVELOPMENT PERMIT APPLICATION for the ANDREW BROWN JR. COMMUNITY PARK (EAST) COPPELL AQUATIC AND RECREATION CENTER By Halff Associates, Inc. 8616 Northwest Plaza Drive Dallas, Texas 75225 SITE IN COPPELL, TEXAS, along DENTON CREEK In the City of Coppell, Dallas County, Texas Prepared for the CITY OF COPPELL PARKS DEPARTMENT Of WAITER E. 9 9 487W . This document is for Permitting purposes only and is not intended for Bidding or Construction. AVO 16521 MEN January 1999 MEN HALFF ASSOCIATES, INC. MEN ENGINEERS • ARCHITECTS • PLANNERS MEN Halff Associates ENGINEERS • ARCHITECTS • SCIENTISTS PLANNERS• SURVEYORS City of Coppell 255 Parkway Boulevard Coppell, Texas 75019 Attn.: Mr. Ken Griffin, P.E., City of Coppell Flood Plain Administrator, Assistant City Manager and Director of Public Works Re: Flood Plain Development Permit Application. Andrew Brown Jr. Community Park (East) Coppell Aquatic and Recreation Center Site City of Coppell, Dallas County, Texas Dear Mr. Griffin: 8616 NORTHWEST PLAZA DRIVE DALLAS, TEXAS 75225 (214) 346 -6200 FAX (214) 739 -0095 January 29, 1999 AVO 16521 Halff Associates, Inc. has completed an engineering report in support of a proposed flood plain reclamation project at the Andrew Brown Jr. Community Park Coppell Aquatic and Recreation Center Site in Coppell, Dallas County, Texas, on behalf of the City of Coppell Parks Department. Enclosed you will find the technical data required for a Flood Plain Development Permit Application for the aforementioned project. The City of Coppell Flood Plain Development Permit Application form can be found section III of this report. Flood plain mapping and related information are located in section IV. You will find in Appendix A a copy of the Conditional Letter of Map Revision (CLOMR) that was issued for the Andrew Brown Jr. Community Park (East) project by the Federal Emergency Management Agency (FEMA) on May 18, 1993. The park improvements project was also reviewed by the Fort Worth District of the Corps of Engineers in accordance with Section 404 of the Clean Water Act and a Section 404 (Wetlands) Permit was issued by the Corps on November 3, 1993. A copy of this permit is located in Appendix B. Hard copies of the required HEC -2 and HEC -RAS hydraulic models (for ultimate landuse or fully developed landuse conditions) are included with this report as Appendix C through F. Digital versions of the models input data files are included on Disk in Appendix G. Thank you for your consideration of this Flood Plain Development Permit Application. Please call me at (214) 234 -6220 should you have any technical question, or if I can be of further assistance. Sincerely, HALFF ASSOCIATES, INC. Walter E. Skipwith, P.E. Vice President Enclosures. cc: Mr. Gary Sims, Director, Leisure Services Department Mr. Brad Reid, Park Planning and Landscape Manager, City of Coppell File: 16000s \16521 \permit\521 rprt.doc DALLAS • FORT WORTH • HOUSTON • McALLEN TRANSPORTATION • WATER RESOURCES • LAND DEVELOPMENT • MUNICIPAL • ENVIRONMENTAL • STRUCTURAL MECHANICAL • ELECTRICAL SURVEYING • GEOGRAPHIC INFORMATION SYSTEMS ARCHITECTURE LANDSCAPE ARCHITECTURE • PLANNING FLOOD PLAIN DEVELOPMENT PERMIT APPLICATION ANDREW BROWN JR. COMMUNITY PARK (EAST) COPPELL AQUATIC AND RECREATION CENTER SITE IN COPPELL, TEXAS TABLE OF CONTENTS Page # I. Project Description A. Introduction 1 B. Site Description I C. Existing Conditions 1 D. Revised Existing Conditions 2 E. Proposed Conditions 2 F. Other Permits 3 G. Recommendations 4 II. Photographs III. Forms Form 1 - City of Coppell Flood Plain Development Permit Form IV. Exhibits Exhibit 1 Location Map Exhibit 2 Proposed Site Plan Exhibit 3 100 -Year Fully Developed Water Surface Profile - Denton Creek Exhibit 4 Lake Cross - Section at Mitigation Area - Proposed vs Revised Existing Conditions. Exhibit 5 Current Effective Condition Cross - Sections Exhibit 6 Revised Existing Condition Cross - Sections Exhibit 7 Proposed Condition Cross - Sections V. Appendices Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Approved Conditional Letter of Map Revision Request Approved C.O.E. Section 404 (Wetland) Permit Request Current Effective HEC -2 Model - (DENCR- DW.DAT) HEC -RAS Conversion of Current Effective Model Revised Existing Conditions HEC -RAS Model Proposed Conditions HEC -RAS Model Digital Input Data Files on Disk FLOOD PLAIN DEVELOPMENT PERMIT APPLICATION ANDREW BROWN JR. COMMUNITY PARK (EAST) COPPELL AQUATIC AND RECREATION CENTER SITE IN COPPELL, TEXAS LIST OF TABLES Page # Table 1 Comparison Table of Water Surface Elevations, 100 -Year Flood, Fully Developed Watershed 5 Table 2 Comparison Table of Channel Flow Velocity, 100 -Year Flood, Fully Developed Watershed 6 Table 3 Comparison Table of Water Surface Elevations, 2 -Year flood, Fully Developed Watershed 7 Table 4 Comparison Table of Channel Flow Velocity, 2 -Year Flood, Fully Developed Watershed 8 Table 5 Comparison Table of Valley Storage, 100 -Year Flood, Fully Developed Watershed 9 I. Project Description FLOOD PLAIN DEVELOPMENT PERMIT APPLICATION ANDREW BROWN JR. COMMUNITY PARK (EAST) COPPELL AQUATIC AND RECREATION CENTER SITE IN COPPELL, TEXAS A. Introduction This study investigates a proposed flood plain reclamation and provides the necessary technical data for approval of a Flood Plain Development Permit on behalf of the City of Coppell Parks Department. The reclamation site is located along Denton Creek within Andrew Brown Jr. Community Park (East) in the City of Coppell, Dallas County, Texas, as shown on Figure 1, Location Map. B. Site Description The City of Coppell Parks Department operates Andrew Brown Jr. Community Park, which covers approximately 166 acres of land along Denton Creek near Denton Tap Road and Parkway Boulevard. An 8 acre site within the park has been dedicated to the construction of the Coppell Aquatic and Recreation Center. This smaller site, at the corner of Parkway Boulevard and Enclaves Court, encroaches partially on the Denton Creek flood plain and is the subject of this Flood Plain Development Permit request. The site is located 1200 feet downstream of the confluence of Denton Creek with Cottonwood Branch, its tributary. Denton Creek is itself a tributary of the Elm Fork of the Trinity River and flows in an easterly direction near the northern corporate limits of the City of Coppell. It drains a watershed area of 719 square miles which includes 695 square miles of drainage area for Lake Grapevine and Cottonwood Branch. The study area is located approximately 5 river miles upstream of the confluence of Denton Creek with the Elm Fork of the Trinity River. Andrew Brown Jr. Community Park has been developed recently to include enlarged lake areas, concession stands, multi - purpose playing fields and athletic fields. The park low areas are frequently flooded by floods less than the 5 -year frequency and the City of Coppell is proposing to develop higher ground areas to house restrooms, maintenance and community buildings such as the proposed Coppell Aquatic and Recreation Center. The proposed Coppell Aquatic and Recreation Center site is situated on higher ground areas and is currently utilized as open space. C. Existing Conditions The existing condition HEC -2 hydraulic computer model (dencr - dw.dat) used as a base in this study was developed for the 1991 Coppell City -Wide Storm water Management study by Halff Associates, Inc. (then Albert H. Halff Associates, Inc.). This model computes water surface elevations along Denton Creek from about 5500 feet downstream of McArthur Boulevard (cross- section 18440) to about 24,700 feet or 4.7 miles upstream of Denton Tap Road (cross - section 56940) for fully developed (also called ultimate landuse) watershed conditions. 1 The HEC -2 model was converted to the more recent HEC -RAS format (version 2. 1), which created minor differences in the model output. The conversion resulted in small rises in water surface elevation and in channel flow velocity at cross - sections 28890 through 30027, downstream and upstream of the proposed reclamation site. The increases in water levels do not exceed 0.07 foot, and in flow velocity 0.13 foot per second. The City -Wide Storm Water Management model does not include some recent construction in the vicinity of the proposed Coppell Aquatic and Recreation Center, such as lake enlargements and park grading downstream and upstream of the proposed site, construction of ball fields across and downstream of the site, construction of a parking lot area and ball fields along Denton Tap Road, 1800 feet upstream of the site, and bridge improvements currently under construction at Denton Tap Road. D. Revised Existing Conditions Cross - sections 28890 through 30027 were revised to reflect recent aerial topography (2 foot contour interval) prepared in 1998 by Teague Nall & Perkins and Dallas Aerial Surveys, Inc., for the City of Coppell (Texas State Coordinate System, North Central Zone - NAD '83 - Photo date: March 18, 1998). The revised hydraulic file now models construction of ball fields across and downstream of the site, as well as enlargement and moderate grading at a lake upstream of the site. The remaining improvements listed in C. above were not modeled. The improvements are either not complete, so recent that they are not reflected on the March 1998 topographic maps, or they affect cross - sections far enough from the site that they do not influence this modeling. The proposed Coppell Aquatic and Recreation Center improvements only modify cross - sections 29651 and 29831. E. Proposed Conditions The proposed Coppell Aquatic and Recreation Center improvements shown on the enclosed Exhibit 2, Proposed Site Plan were obtained in a digital format from Carson- Salcedo- McWilliams & Associates, Inc., consultant for Brinkley Sargent Architects who designed the Center. Cross - sections 29651 and 29831 were modified to reflect the proposed construction and grading of the surrounding area. Cross - section 29831 was further altered to include mitigating excavation on the opposite side of the existing lake. The mitigation was designed by Halff Associates, Inc. in January 1999. As shown on the attached Table 1, Comparison Table of Water Surface Elevations & Valley Storage (100 -Year Flood Ultimate Landuse Watershed), and Table 2, Comparison Table of Channel Flow Velocity (100 -Year Flood Ultimate Landuse Watershed), the proposed reclamation results in a 0.03 foot rise in base flood levels at cross - section 29831 only, a net gain in valley storage of about 0.07 acre -feet and a localized increase in channel flow velocity of 0.16 foot per second at cross - section 29651. 2 The City of Coppell Floodplain Management Ordinance No. 94639 (the Ordinance) requires a zero rise in water surface elevation. The project results in a 0.03 foot rise. This increase is confined to the public park and does not affect any private area, and it does not affect any existing structure. The proposed Coppell Aquatic and Recreation Center itself is removed from the flood plain. A net gain in valley storage of 0.07 acre -feet is computed at the last upstream cross - section of this model, cross - section 56940, for the 100 -year flood (see Appendix D, Proposed Condition HEC -RAS Model). The Ordinance requires that no reduction in the 100 -year flood valley storage occur for drainage areas in excess of 100 square miles, and that a reduction of no more than 5% occur for the standard project flood. This model, the City's official model for this reach of Denton Creek, does not compute the standard project flood. Channel flow velocity increases at cross - section 29651 from 3.96 to 4.12 foot per second. This small increase only affects one cross - section and does not represent an increased danger of erosion along the channel. The Ordinance requires that the lowest floor be elevated to a minimum of one (1) foot above the design base flood elevation or two (2) feet above the FIS base flood elevation, whichever is higher. Please refer to Table 1, Comparison Table of Water Surface Elevations & Valley Storage (100 -Year Flood Ultimate Landuse Watershed), and to Exhibit 2, Proposed Site Plan. The lowest floor elevation of 459.00 stands 2.06 feet above the design base flood elevation of 456.94 at cross - section 29651, and the lowest floor elevation of 460.00 stands 2.90 feet above the design base flood elevation of 457.10 at cross - section 29831. Please refer to the CLOMR request report that the City of Coppell has in their possession: the CLOMR Table 4A -3, Comparison of Computed Water Surface Elevations and Velocities, Existing Landuse Discharges ( CLOMR page II -18, not included with this submittal) lists FIS base flood elevations of 456.23 and 456.30 at cross - sections 29651 and 29831 respectively. Please refer to F. Other Permits below for all matters referring to floodways or FIS or existing landuse hydraulics. You will find on pages 5 through 10 of this report comparison tables of water surface elevation, channel flow velocity and valley storage. F. Other permits A Conditional Letter of Map Revision ( CLOMR) was approved by the Federal Emergency Management Agency (FEMA) on May 18, 1993 for the entire Andrew Brown Jr. Park (East) site improvements (case number 93- 06- 091R). Construction of the Coppell Aquatic and Recreation Center represents only one of the planned improvements. FEMA, when contacted, confirmed that, although this development may vary slightly from the original design presented in the 1992 CLOMR submittal, such a variation is common and does not warrant a new CLOMR request. FEMA expects the submittal of a Final Letter of Map Revision (LOMR) request when all the improvements are complete. The issue of floodways will be addressed in the LOMR submittal. A copy of the approved CLOMR is included in Appendix A of this report. 9a A Section 404 (Wetland) Permit was obtained for the entire park improvements on November 3, 1993 (C.O.E. Project Number 199100002). A copy of the approved Section 404 Permit is included in Appendix B of this report. F. Recommendations. We recommend that the City of Coppell approve this Flood Plain Development Permit application as it is consistent with the City of Coppell flood plain management and park development goals. Furthermore, we recommend that the city follow this endeavor with a comprehensive flood plain analysis of the park improvements, based on fully developed as well as existing landuse conditions, prior to and including the preparation of a Final Letter of Map Revision (LOMR) submittal. The comprehensive flood plain analysis should include the bridge improvements currently under construction at Denton Tap Road, which are not modeled in the CLOMR. El wsel - 100 Table 1 - Andrew Brown Jr. Park East Denton Creek - Flood Plain Development Permit Comparison Table of Water Surface Elevations [ft.] 100 -Year Flood - (Ultimate Landuse) Fully Developed Watershed Location Existing Conditions City-Wide Study Model HEC -2 DENCR- DW.dat 100 -YR Section WSEL Existing Conditions City -Wide Study Model HEC -RAS v 2.1 Plan P01 Geometry G01 Flow F01 100 -YR Section W Ri Revised Existing Conditions based on 1998 Aerial topography HEC -RAS v 2.1 Plan P02 Geometry G02 Flow F01 100 -YR Section WSEL Rise - Proposed Conditions with Mitigation Plan HEC -RAS v 2.1 Plan PO4 Geometry G04 Flow F01 100 -YR Section WSEL Rise i ,.. _- - 27992 456.16 27992 456.23 0.07 27992 456.23 - 27992 456.23 - 28168 456.22 I '` 28168 456.28 0.06 28168 456.28 28168 456.28 28492 456.26 28492 456.32 0.06 28492 456.32 28492 456.32 - 28720 456.31 28720 456.37 0.06 28720 456.37 - 28720 456.37 - 28890 456.34 28890 456.40 0.06 28890 456.38 -0.02 28890 456.38 - Existing Parking Lot 29124 456.44 29124 456.50 0.06 29124 456.42 -0.08 29124 456.42 - Proposed Rec Center 29651 456.71 29651 456.78 0.07 29651 456.94 0.16 29651 456.94 Proposed Rec Center 29831 456.78 29831 456.85 0.07 29831 457.07 0.22 29831 457.10 0.03 30027 456.84 30 456.91 0.07 30027 457.15 0.24 30027 457.15 30384 457.23 30384 457.32 0.09 30384 457.56 0.24 30384 457.56 30604 457.88 30604 457.95 0.07 30604 458.15 0.20 ! 30604 458.15 30958 458.44 30958 458.56 0.12 30958 458.72 0.16 1 30958 458.72 31335 458.58 31335 458.70 0.12 31335 458.85 0.15 31335 458.85 End Park East 32150 458.35 1 32150 458.45 0.10 32150 458.61 0.16 32150 458.61 Denton Tap Rd 32200 458.25 32200 458.39 0.14 32200 458.54 0.15 32200 458.54 Denton Tap Rd Bridge 32215 Bridge 32215 Bridge 32215 Bridge Denton Tap Rd 32230 458.67 32230 458.76 0.09 32230 458.89 0.13 32230 458.89 Begin Park West 32305 458.69 32305 458.72 0.03 32305 458.87 0.15 ; 32305 458.87 32725 463.10 32725 463.38 0.28 32725 463.34 -0.04 32725 463.34 33145 463.37 - 33145 463.63 0.26 33145 463.60 -0.03 33145 463.60 3� 3470 463.59 33470 463.83 0.24 33470 463.81 -0.02 33470 463.81 34260 464.01 1 34260 464.22 0.21 34260 464.20 -0.02 34260 464.20 34850 464.29 34850 464.49 0.20 34850 464.47 -0.02 34850 464.47 34950 464.52 34950 464.99 0.47 I 34950 464.98 -0.01 34950 464.98 36970 467.32 36970 466.66 -0.66 i 36970 466.66 36970 466.66 - 38200 468.11 38200 467.38 -0.73 38200 467.37 -0.01 38200 467.37 - 39290 468.30 39290 467.66 -0.64 39290 467.65 -0.01 39290 467.65 - File: is \avo \16521 \hec2 \FDmodel \FD - wsel.xls 2/1/99 15:48:57 Rise' Compared to Existing Conditions, HEC -2 model Rise Compared to Existing Conditions, HEC -RAS model Rise Compared to Revised Existing Conditions, HEC -RAS model Page 5 velocity - 100 Table 2 - Andrew Brown Jr. Park East Denton Cree - Flood Plain Development Permit Comparison Table of Channel Flow Velocity [ft /s] 100 -Year Flood - (Ultimate Landuse) Fully Developed Watershed File: is \avo \16521 \hec2 \FDmodel \FD- wsel.xls 2/1/99 15:48:57 Increase' Compared to Existing Conditions, HEC -2 model Increase Compared to Existing Conditions, HEC -RAS model Increase Compared to Revised Existing Conditions, HEC -RAS model Page 6 Existing Conditions Existing Conditions Revised Existing Conditions Proposed Conditions with City -Wide Study Model City -Wide Study Model based on 1998 Aerial topography Mitigation Plan HEC -2 HEC -RAS v 2.1 HEC -RAS v 2.1 HEC -RAS v 2.1 Location DENCR- DW.dat Plan P01 Geometry G01 Flow F01 Plan P02 Geometry G02 Flow F01 Plan PO4 Geometry G04 Flow F01 Channel Channel Channel Channel Section Velocit Secti Vel Incr Section Velocity Increase 2 Section Velocity Increase 27992 2.41 27992 2.40 -0.01 27992 2.40 27992 2.40 28168 1.89 28168 1.89 - 28168 1.89 28168 1.89 28492 1.90 28492 1.90 - 2849 1.90 28492 1.90 28720 2.26 28720 2.27 0.01 28720 2.27 - 28720 2.27 28890 2.91 28890 2.90 -0.01 28890 3.52 0.62 28890 3.52 Existing Parking Lot 29124 3.75 29124 3.75 - 29124 5.36 1.61 29124 5.36 Proposed Rec Center 29651 3.21 29651 3.31 0.10 29651 3.96 0.65 29651 4.12 0.16 Proposed Rec Center 29831 3.35 29831 3.35 - 29831 29831 3.45 0.10 291 - 3.21-0.24 30027 4.55 30 027 4.68 0.13 30027 4.89 0.21 30027 4.89 30384 6.19 30384 6.17 -0.02 30384 6.01 -0.16 30384 6.00 -0.01 i 30604 5.61 30604 5.82 0.21 30604 5.66 -0.16 30604 5.66 30958 2.51 j 30958 2.55 0.04 30958 2.48 -0.07 30958 2.48 31335 4.74 31335 4.77 0.03 31335 4.61 -716 31335 4.61 End Park East 32150 10.93 32150 11.05 0.12 32150 10.90 -0.15 32150 10.90 Denton Tap Rd 1 32200 12.85 32200 12.76 -0.09 32200 12.57 -0.19 32200 12.57 i 32215 32215 32215 Denton Tap Rd 32230 12.36 32230 12.32 -0.04 32230 12.17 -0.15 32230 12.17 Begin Park West 32305 14.98 32305 15.38 0.40 32305 - 15.07 -0.31 32305 15.07 32725 3.92 32725 3.89 -0.03 32725 3.91 0.02 1 32725 3.91 33145 3.26 33145 3.14 -0.12 33145 3.16 0.02 33145 3.16 33470 3.50 33470 3.33 -0.17 33470 3.35 0.02 33470 3.35 34260 2.94 34260 2.86 -0.08 34260 2.87 0.01 34260 2.87 34850 6.34 34850 6.13 -0.21 34850 6.16 0.03 34850 6.16 34950 6.09 34950 4.12 -1.97 34950 4.14 0.02 34950 4.14 36970 5.85 36970 5.02 -0.83 36970 5.02 36970 5.02 38200 2.48 38200 2.92 0.44 1 38200 2.92 38200 2.92 39290 2.98 39290 3.29 0.31 39290 3.30 0.01 39290 3.30 File: is \avo \16521 \hec2 \FDmodel \FD- wsel.xls 2/1/99 15:48:57 Increase' Compared to Existing Conditions, HEC -2 model Increase Compared to Existing Conditions, HEC -RAS model Increase Compared to Revised Existing Conditions, HEC -RAS model Page 6 wsel - 2 Table 3 - Andrew Brown Jr. Park East Denton Creek - Flood Plain Development Permit Comparison Table of Water Surface Elevations [ft.] 2 -Year Flood - (Ultimate Landuse) Fully Developed Watershed Location Existing Conditions City-Wide Study Model HEC -2 DENCR- DW.dat Section 2 -YR WSEL Existing Conditions City -Wide Study Model HEC -RAS v 2.1 Plan P01 Geometry G01 Flow F01 Section 2 -YR WSEL Rise' Revised Existing Conditions based on 1998 Aerial topography HEC -RAS v 2.1 Plan P02 Geometry G02 Flow F01 Section 2 -YR WSEL Rise Proposed Conditions with Mitigation Plan HEC -RAS v 2.1 Plan PO4 Geometry G04 Flow F01 Section 2 -YR WSEL Rise 27992 451.53 11 27992 451.60 0.07 27992 451.60 27992 451.60 28168 451.60 11 28168 451.67 0.07 28168 451.67 28168 451.67 28492 451.64 11 28492 451.71 0.07 28492 451.71 28492 451.71 28720 451.68 28720 451.74 0.06 28720 451.74 - 28720 451.74 - Existing Parking Lot Proposed Rec Center Proposed Rec Center 28890 29124 29651 29831 30027 451.68 451.74 452.02 452.08 452.12 28890 29124 29651 29831 30027 451.75 451.82 452.10 452.17 452.20 0.07 0.08 0.08 0.09 0.08 28890 29124 29651 29831 30027 451.70 451.84 452.21 452.36 452.43 -0.05 1 0.02 I 0.11 0.19 0.23 28890 29124 29651 29831 30027 451.70 451.84 452.21 452.36 452.43 30384 452.32 30384 452.45 0.13 30384 452.69 0.24 30384 452.69 I' 30604 452.52 30604 452.68 0.16 30604 452.91 0.23 30604 452.91 i 30958 453.03 30958 453.22 0.19 30958 453.40 0.18 30958 453.40 End Park East Denton Tap Rd Denton Tap Rd Bridge 31335 32150 32200 �- 452.89 453.73 453.67 31335 32150 32 32215 453.22 453.82 453.77 0.33 0.09 0.10 31335 32150 32200 32215 453.40 453.87 453.82 0.18 0.05 0.05 31335 32150 32200 32215 453.40 453.87 453.82 Denton Tap Rd Begin Park West 32230 32305 453.74 453.49 32230 32305 453.83 453.60 0.09 0.11 32230 32305 453.88 453.65 0.05 0.05 32230 32305 453.88 - 453.65 32725 456.75 32725 456.78 0.03 32725 456.78 - 32725 456.78 33145 457.33 33145 457.36 0.03 33145 457.37 0.01 33145 457.37 33470 457.48 33470 457.53 0.05 33470 457.53 33470 457.53 34260 457.95 34260 458.01 0.06 34260 458.01 34260 458.01 34850 34950 458.20 458.34 34850 34950 458.25 458.39 0.05 0.05 34850 34950 458.26 458.39 0.01 34850 34950 458.26 458.39 36970 460.75 36970 460.93 0.18 36970 460.94 0.01 36970 460.94 38200 461.74 38200 461.86 0.12 38200 461.86 - 38200 461.86 39290 462.05 39290 462.20 0.15 39290 462.20 39290 462.20 File: is \avo \16521 \hec2 \FDmodel \FD- wsel.xls 2/1/99 15:48:57 Rise' Compared to Existing Conditions, HEC -2 model Rise Compared to Existing Conditions, HEC -RAS model Rise Compared to Revised Existing Conditions, HEC -RAS model Page 7 velocity - 2 Table 4 - Andrew Brown Jr. Park East Denton Creek - Flood Plain Development Permit Comparison Table of Channel Flow Velocity [ft /s] 2 -Year Flood - (Ultimate Landuse) Fully Developed Watershed File: is \avo \16521 \hec2 \FDmodel \FD - wsel.xls 2/1/99 15:48:57 Increase' Compared to Existing Conditions, HEC -2 model Increase Compared to Existing Conditions, HEC -RAS model Increase Compared to Revised Existing Conditions, HEC -RAS model Page 8 Existing Conditions Existing Conditions Revised Existing Conditions Proposed Conditions with City-Wide Study Model City -Wide Study Model based on 1998 Aerial topography Mitigation Plan HEC -2 HEC -RAS v 2.1 HEC -RAS v 2.1 HEC -RAS v 2.1 Location DENCR- DW.dat Plan P01 Geometry G01 Flow F01 Plan P02 Geometry G02 Flow F01 Plan PO4 Geometry G04 Flow F01 Channel Channel Channel Channel Section Ve l o city Section Velocity Increase' Section Velocity Increase Section Velocity Increase' IF- 27992 2.36 27992 2.26 -0.10 27992 2.26 27992 2.26 28168 1.76 28168 1.74 -0.02 281 1.74 28168 1.74 28492 1.72 28492 1.71 -0.01 28492 1.71 28492 1.71 28720 1.95 28720 1.93 -0.02 28720 1.93 28720 1.93 28890 2.94 28890 2.92 -0.02 28890 3.75 0.83 28890 3.75 Existing Parking Lot 29124 3.35 29124 3.30 -0.05 29124 3.81 0.51 29124 3.81 Proposed Rec Center 29651 2.75 29651 2.71 -0.04 29651 3.44 0.73 29651 3.49 0.05 Proposed Rec Center 29831 2.68 29831 2.64 -0.04 29831 2.90 0.26 29831 2.75 -0.15 30027 3.55 30027 3.53 -0.02 30027 3.60 0.07 30027 3.60 I 30384 4.25 30384 4.10 -0.15 30384 3.95 -0.15 30384 3.95 30604 4.71 30604 4.64 -0.07 30604 4.48 -0.16 30604 4.48 30958 3.55 30958 3.38 -0.17 30958 3.21 -0.17 30958 3.21 31335 8.22 31335 7.59 -0.63 31335 7.20 -0.39 31335 7.20 End Park East 32150 5.53 32150 5.49 -0.04 32150 5.46 -0.03 32150 5.46 Denton Tap Rd 32200 7.25 32200 7.19 -0.06 32200 7.15 -0.04 32200 7.15 Denton Tap Rd Bridge 32215 32215 32215 Denton Tap Rd 32230 7.19 ; 32230 7.13 -0.06 32230 7.10 -0.03 32230 7.10 Begin Park West 32305 11.51 3 2305 11.36 0.15 32305 11.26 0.10 32305 11.26 32725 4.68 32725 4.70 0.02 32725 4.69 -0.01 32725 4.69 33145 2.47 33145 2.46 -0.01 33145 2.46 - 33145 2.46 3347 34260 3.21 - 2.2� 33470 3.19 -0.02 33470 3.19 - 33470 3.19 34260 2.20 -0.02 34260 2.19 -0.01 34260 2.19 34850 4.97 34850 4.95 -0.02 34850 4.95 - 34850 4.95 34950 4.91 34950 4.88 -0.03 34950 4.88 - 34950 4.88 36970 5.33 36970 4.85 -0.48 36970 4.85 - 36970 4.85 1 38200 2.46 38200 " 2.60 0.14 38200 2.60 - 38200 2.60 39290 2.86 39290 2.87 0.01 39290 2.87 - 39290 2.87 File: is \avo \16521 \hec2 \FDmodel \FD - wsel.xls 2/1/99 15:48:57 Increase' Compared to Existing Conditions, HEC -2 model Increase Compared to Existing Conditions, HEC -RAS model Increase Compared to Revised Existing Conditions, HEC -RAS model Page 8 valley storage - 100 Table 5 - Andrew Brown Jr. Park East Denton Creek - Flood Plain Development Permit Comparison Table of Valley Storage [ac.ft.] 100 -Year Flood - (Ultimate Landuse) Fully Developed Watershed Page 9 Existing Conditions Existing Conditions Revised Existing Conditions Proposed Conditions with City -Wide Study Model City -Wide Study Model based on 1998 Aerial topography Mitigation Plan HEC -2 HEC -RAS v 2.1 HEC -RAS v 2.1 HEC -RAS v 2.1 Location DENCR- DW.dat Plan P01 Geometry 01 Flow F01 ry Plan P02 Geometry G02 Flow F01 Plan PO4 Geometry G04 Flow F01 Valley Valley Valley Valley Section Sto Section Storage Increase' 11 Section Storage Increase Section St Increase 27992 1491.82 27992 1506.43 14.61 27992 1506.43 - 27992 1506.43 28168 1545.26 28168 1560.27 15.01 28168 1560.27 - 28168 1560.27 28492 1625.81 28492 1641.35 15.54 28492 1641.35 28492 1641.35 f 28720 1698.25 28720 1714.32 16.07 28720 1714.32 - 28720 1714.32 28890 1737.58 28890 1753.97 16.39 28890 1751.48 -2.49 28890 1751.48 Existing Parking Lot 29124 1791.40 29124 1808.26 16.86 29124 1795.29 -12.97 29124 179 5.29 Proposed Rec Center 29651 1871.67 29651 1889.21 17.54 29651 1862.73 -26.48 29651 1860.96 -1.77 Proposed Rec Center 29831 1904.41 29831 1922.27 17.86 29831_ 18 92.16 -30.11 29831 1890.42 -1.74 30027 1939.22 30027 1957.43 18.21 _ 30027 1925.09 -32.34 30027 1924.71 -0.38 30384 1977.23 30384 1995.83 18.60 30384 1963.39 -32.44 30384 1963.03 -0.36 30604 2002.10 30604 2021.02 18.92 30604 1989.49 -31.53 1 30604 1989.15 -0.34 30958 2051.05 30958 2070.65 19.60 30958 2040.48 -30.17 30958 2040.15 -0.33 31335 2110.17 31335 2130.84 20.67 31335 2102.09 -28.75 31335 2101.78 -0.31 End Park East 32150 2127.78 32150 2148.84 21.06 32150 2120.63 -28.21 32150 2120.33 -0.30 Denton Tap Rd 32200 2130.24 32200 2151.35 21.11 32200 2123.21 -28.14 32200 2122.91 0.30 Denton Tap Rd Bridge 32215 32215 32215 Denton Tap Rd 32230 2132.35 32 2153.48 21.13 32230 2125.37 -28.11 32230 2125.06 -0.31 Begin Park West 32305 2134.67 32 2155.82 21.15 32305 2127.75 -28.07 32305 2127.45 -0.30 32725 2184.93 32725 2208.08 23.15 32725 2180.03 -28.05 32725 2179.73 -0.30 33145 2245.55 33145 2271.32 25.77 33145 2242.97 -28.35 33145 2242.67 -0.30 I 33 2286.89 33470 2314.41 27.52 33470 2285.87 -28.54 33470 2285.57 -0.30 34260 2383.85 34260 2414.49 30.64 34260 2385.64 -28.85 34260 2385.33 -0.31 34850 2447.34 34850 2480.19 32.85 34850 2451.12 -29.07 34850 2450.81 -0.31 34950 _ 2456.31 34950 2493.41 37.10 34950 2464.28 -29.13 34950 2463.97 -0.31 I 36970 2655.22 36970 2790.42 135.20 36970 2760.49 -29.93 36970 2760.18 -0.31 38200 2835.81 1 38200 2969.66 133.85 38200 2939.63 -30.03 38200 2939.31 -0.32 39290 3061.77 39290 3175.91 114.14 39290 3145.80 -30.11 39290 3145.48 -0.32 39440 3094.34 39440 3205.04 110.70 39440 3174.93 -30.11 39440 3174.61 -0.32 39490 3099.73 39490 3209.85 110.12 39490 3179.74 -30.11 39490 3179.80 0.06 Page 9 valley storage - 100 Location Existing Conditions City-Wide Study Model HEC -2 DENCR DW.dat Valley Section Storage Existing Conditions City -Wide Study Model HEC -RAS v 2.1 Plan P01 Geometry G01 Flow F01 Valley Section Storage Increase Ebaed Existing Conditions 98 Aerial topography C -RAS v 2.1 eometry G02 Flow F01 Valley Stora In Proposed Conditions with Mitigation Plan HEC -RAS v 2.1 Plan PO4 Geometry G04 Flow F01 Valley Section Storag e Increase 39540 3105.22 40650 3221.71 48000 3950.14 51350 4477.43 53350 4665.10 55590 4834.21 56940 4932.98 39540 3214.80 109.58 40650 3320.43 98.72 48000 4045.02 94.88 51350 4648.90 171.47 53350 4942.13 277.03 55590 5241.27 407.06 56940 5384.44 451.46 39540.- 3184.69 -30.11 40650 3290.27 -30.16 48000 4014.79 -30.23 51350 4618.66 -30.24 53350 4911.88 -30.25 55590 5211.01 -30.26 56940 5354.18 -30.26 39540 3184.75 0.06 40650 3290.34 0.07 48000 4014.86 0.07 51350 4618.72 0.06 53350 4911.94 0.06 55590 5211.07 0.06 56940 5354.25 0.07 File: is \avo \16521 \hec2 \FDmodel \FD- wsel.xls 2/1/99 15:45:01 Increase 1 Compared to Existing Conditions, HEC -2 model increase Compared to Existing Conditions, HEC -RAS model Increase Compared to Revised Existing Conditions, HEC -RAS model Page 10 II. Photographs Photograph 1, taken from the proposed Aquatic and Recreation Center site looking North towards Denton Creek: View of the lake enlargement mitigation area .I Photograph 2, taken from the existing lake shown in photograph 1, looking south towards the proposed Aquatic and Recreation Center site: View of the area to be filled. III. Forms FLOODPLAIN DEVELOPMENT PERMIT CITY OF COPPELL, TEXAS PERMIT NO. NAME OF PERMITTEE. CITY OF COPPELL PARKS DEPARTMENT The above named permittee applied for a FLOODPLAIN DEVELOPMENT PERMIT on JANUARY 29 1999 The application has been reviewed by the FLOODPLAINADMINISTRA TOR and it has been determined that the proposed development is located within an identifiable floodplain of. DENTON CREEK The FLOODPLAIN ADMINISTRATOR has reviewed plans and specifications of the proposed development for conformance with the development standards required by COPPELL Floodplain Ordinance 1194639. You are hereby authorized to proceed with the following described work: CONSTRUCTION OF FILL AT THE PROPOSED " COPPELL AQUATIC AND RECREATION CENTER" SITE IN ANDREW BROWN JR. COMMUNITY PARK EAST, AND MITIGATION EXCAVATION ALONG EXISTING LAKE. To maintain compliance with the development standards of COPPELL Floodplain Ordinance #94639 and to eliminate or minimize flood damage potential to the proposed development, you are hereby directed to construct your proposed development in accordance with the following special provisions: (X ) Compliance with all requirements of Coppell Floodplain Ordinance 1194639 including but not limited to: ' N/A For residential structures, the lowest floor (including basement) must be elevated to two (2) feet above the 100 -year base flood elevation or one (1) foot above ultimate condition whichever is higher. Certtfication of the lowest floor must be submitted from a registered professional engineer, architect, or land surveyor. ► YES For non - residential structures, the lowest floor (including basement) must be elevated or floodproofed to two (2) feet above the 100 -year base flood elevation or one (1) foot above ultimate condition whichever is higher. Cernftcation that the floodproofurg methods are adequate to withstand the flood depths, pressures, velocities, impact and uplift forces and other factors associated with the base flood must be submitted from a registered professional engineer or architect. PL REFER T THE AT �A R .YES For fillttv'et, a permQtte m su nu1 e�i �m a registered professional engineer or land surveyor that the level of the compacted fill material is at or above the elevation of the Base Flood. (FILL CONSTRUCTION IS NOT COMPLETE) (X ) Certitd copy of aQ final plans or As - Built Drawings must be submitted to the FLOODPLAIN ADMINISTRATOR. PROVIDED BY BRINKLEY SARGENT ARCHITECTS (SEPARATELY) ( ) OTHER PROVISIONS. Acknowledgement o on ns 4 Permitlee Dwe ti �Ym�► ��7�yir :Utly�N.�iNI,�N.y1��tr:g�g0 3c r_, ,_, IV. Exhibits SCALE IN MILES SCALE IN FEET - ts 0 1000 2000 3000 EXHIBIT I LOCATION MAP e ' +GR��WO 3040 �r::.. '.. RO ND O Vista Ridge 35 Mall t LEWISVIL RIDGE DR 121 o C �p zCRESTVI 71 ' RIDGE M, G a — c�J\SB((/p VISTA NOCHE ° TRAIL m9°o � 0 Mapsco, Inc. = J�STA O gtPP� ��E J' seu4 N� F N P ° 553 ttj RIDGE HAVfl G^1 ¢ Mn / L LAKE VISTA �NTON C0U \� Y �3E ` • C M U DA A Y - , y .. S�SS1pQ - ' FOflES� a\ � ! L \ m pENI RI fl (/ EqS( OGE ANO A T GAG S , O�, NO C�,SHUM iNa FPg9 NAr� \ SPUi G 2 ° sr g C ^a KINGS CREE i E gr 9 553 fps "� 9FF y PROPOSED COPPELL n.FnR � 1 ZT ° AQUATIC AND �' ^ LAK Q DQ RECREATION CENTER N > And Comm Park o° - JOHN ON o DUN N y v l , 9 HAR ISON REENW n Ien i ,� , d � �! o 110. m p o PLU LEE IAYTON m 5 9u° Nr y K LE `at s rn ° > CHI EAL z u �� C� PAR Y S TI � T � NEGN. ICHEL V mom', 6 PAR IL PK CIR 1 1 z ,T, r Q KIRKLAN 6 o q W GLEN CIR m m `z LA 5S m NGSRIOGE Z ° I �1 v ? �9 o w x " PARKW Y BLVD C OVE LEE s m Coppell o ° Town Center - o F < MARLE LOCK HAVEN cr o x o G C EL CLOVER OW WILLOW TO m J CENTER DA LIIGI!� . PECA H 0 ALENOALE 9 �p00M00R o ISU E N a a Z :25 C ranK VALLEY ° PAR VALLEY INDIAN ODMOOR GIR W ROC 3° 0 T o O W v E N o T GLEVJ00 AU z 0 SH DY 0 w ° i B IGH N i ° ttl CEDAR CR ST 4(1 HOM OD Lee o �( 1 AU E ° a CT 0 9 L UE > SANDY LAKE D E ~ E 4 EAGLE SU RERRY w ° R GE Fj � G EENW 0 CT o n SWALLOW CO _F 8 " v RAVEN EIEAF _ SPARROW Y o SCALE IN MILES SCALE IN FEET - ts 0 1000 2000 3000 EXHIBIT I LOCATION MAP ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM egen i 465 WS 100 -year ultimat WS 2 -year ultimate Ground 460 455 450 w 445 440 435 29000 30000 31000 32000 Main Channel Distance (ft) 1 in Horiz. = 600 ft 1 in Vert. = 6 ft EXHIBIT 3 - DENTON CREEK PROFILE ULTIMATE LANDUSE CONDITIONS 2 -YR. AND 100 -YR. FLOODS ABPE - FP Development Permit Proposed lake enlargement 1/4/99 12:10:41 PM RS = 29831 .07 .045 - - .035 - - -- 04 = :. -- - - - - - - - - - - - - - = - -- --- --=---- -..---- -- - - -- :- -.: i. - .i Legend WS PF#4 458 5; i ! i F ill or.Aqu tic; an �, —F ----- ------ -- - -- ...... - - • - - - - - - - - - - -- - - - - -- Recre2� i e Ground Ineff - - - - -- - - - - - - - - - - - - - - :. i i. 7 --- ---- -- --- - -- --- - - - - - - -- -- . • Bank Sta - - - - - - -- 456 i....:.- [Excavation esig a ,y — - --- - ... AX -- rchitect; - . . - -- -- -- - - - . -- - - -- -- i 454 f f - - - - - - -- Actdi#iorral rnit�gation f r - . -.* -- - - w minimum ride - - -- - � - _ - - - rise - `0.�J3 �f� dark -- nr` - . - - - -- - - 452 ' - = = Normal pool - water f -- - -- .-- -. -..- . -'- 1 !§urface-ele'atjon. _44 .,- 0 -- - -- --------- -- 450- - -- - - - y -- - - - .I - - - - - - - - slope - - - -- - - - - - -- - -- -- - - .: - 448 7 . 1600 1800 2000 2200 Station (ft) EXHIBIT 4- DENTON CREEK SECTION 29831 EXISTING VERSUS PROPOSED LAKE CROSS - SECTION ABPE - FP Development Permit Imported Plan 01 - Dencr- dw.dat 1/23/99 1:35:25 PM RS = 30027 Effective Existing Condition - Plan 01 0 .04 .065 .04. ' -- .07 -- - -- - - - - - --------- egen WS 100 -year ultimat _ _ ------------------------ __ _ - _ _ - _ - ._ - -- --------- - - _ - -- -_- -------- . - WS 2 -year ultimate 465 _ - Ground . - Bank S to 460 - - 455 ----------- -------------- . i - -- - - -- - - -' - -- - - . o - _ - '- -- -- - - - -- -- m 450 45 -- - - -- - - -- - - - -- - - - -- - - 440 435- - -- -- - - - . - 1000 1200 1400 1600 1800 2000 2200 Station (ft) 1 in Hnri7 = ')OR W11A ft 1 in \ /—t - 7Q1FC7 H EXHIBIT 5 -A ABPE - FP Development Permit Imported Plan 01 - Dencr- dw.dat 1/23/99 1:35:25 PM RS = 29831 Effective Existing Condition - Plan 01 470 — .04 -- - 0 • .07 - .045 1,E .035 .045 -- -- .075 - .045 - : Tegen7 - - -- - 5 --- - WS 100 -year ultimat - - - -- - - -- - - -- - --- - -- - --- - - - -- - --- .. - - - - - -- -- --- - -- - -- -- _ - - .. - - - - -- -- - - -- -- - WS 2 year ultimate 465 - - - -; �- Ground roun - - - i - - - i - - - - -- - -- ---- --- Bank S"', 460 - - - - - -- ----- ------ --- : - - - -- - - - - - - - -- --- - - - 455 --- -- - ------- ------- -- -- -- --- --- -------------------------- I ------------- -------- - ---- I ------ - - -- - -- --------- ------------------------------ . . . ............... -------------------------- - - -- - - - -- -- -- -- -- - -- C -.. _ -_ _ _ _ ___ __ ____ __ _ ____ ___ _ ____ __ _____ ____ _ _ _ ___ ____ ____ -------- _ _ -- --------- L11 __._ __ ----- --- --------- ------- ------ ___. - -_ - __ - -__ ---------------- ___.___ _ .______ -__._ ------- ------ _ --------------- _ __ -. __ -___._ ____ _ __ -_. --------- ___._ _______ -------- _ ....... -------- 450 445 - - -- -- - -- . ........ .. 440 - -- - - - -- - - - - - -- --- ----- ------- - -- 435 -- --- - - ---- - - - - - -- ---- - - - -- - - --- - - -- - 1000 1500 2000 2500 3000 Station (ft) EXHIBIT 5 -13 ABPE - FP Development Permit Imported Plan 01 - Dencr- dw.dat 1/23/99 1:35:25 PM RS = 29651 Effective Existing Condition - Plan 01 465 04 - .065.04:..: - - - -- .045 - - -- .075 .045 460 5 -- - - - - -- ------- -- - ... ....... - ----- ----- - - ......... -- - - -- - 7 - - - -- - - --- ---- - • -- - - -- - - -- - - - - -- - - - - - -- - - - - --- - - ,.. - -,- -------- --------- - - - - - ' -- - -- -- --- - -------- - ... - ;..- -- - Legend + WS 100 - ultimat WS 2 -year ultimate Ground 455 - - - _ • Bank Sta - --- -- - - -- .2 450 -- - --- -• - ----- - +--- -- -- --- -• -- -- - ------------------ - -- -- -- ------------------ -- --- - -- - -- - - - --- -- -- --------- ------- w 445 - - -- - - - - .. . ... ....... -- - -- - - 440 435 ------------------ U -------- 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 Station (ft) EXHIBT 5 -C ABPE - FP Development Permit Imported Plan 01 - Dencr- dw.dat 1/23/99 1:35:25 PM RS = 29124 Effective Existing Condition - Plan 01 465 .05 .04 07 - -- 045 -------------- ------ - - -- -- WS 100 -year ultimat - - WS 2 -year ultimate 460 - - -- - -- - -- Ground • • 455 - - -- - - - - -- - - - - -- -- - - - -- - -- 450 - - - - - -- -- - -- - - --- -- - - - --- - - - - - --- cu w -------- - ------------ -- - - - -- - -- - 445 440 — ; 435 1200 1400 1600 1800 2000 2200 2400 2600 Station (ft) EXHIBIT 5 -13 ABPE - FP Development Permit Imported Plan 01 - Dencr- dw.dat 1/23/99 1:35:25 PM RS = 28890 Effective Existing Condition - Plan 01 465 0 .04 .065 -0 . .045 - = - • Legon WS 100 -Year ultimak -- - - - - -- ---- - - - --- ----------- -- -- - - -- - ---- - - - --- ---- - ----- -- - -- - - -- --- - - -- -- -- - - - - -- - - - --- - - -- ----- - -- - - -- ---- -- ------- -;---- - -- --- --- ,---- - - - - -- --- -- - - - - -' - --------- --- - - - - -- ---- ------ -- - - - - - -- WS 2 -year ultimate 460 - - - -- - - - -- -- ---- - - -- - -- - - Ground - - - - - -------------- ,-- - - - - -- ----- - - - - - -- • Ba Bank Sta 455 -- - - -- -- -- -------- - -- - - -- -- - -- - - -- --- - - - -- °- 450 J -------------------- - - - -- -- - - - - - -- ---- ------ ----------------- - - - - - - - - w- -- - - - - -- - - -- - 445 440 435 1200 1400 1600 1800 2000 2200 2400 2600 2800 i Station (ft) EXHIBIT 5 -E ABPE - FP Development Permit Revised Existing Condition Model 1/23/99 1:05:35 PM RS = 30027 Revised Existing Condition - Plan 02 470 .05 •04 .065 -.04 .07 a 045 - - - -- -- - -- - egen - - -- - - WS 100- ear ultimat_ , • - - _ _ - --------- _ _ _ year ultimate 465 Ground • , • , - -- - - - • - - - - - - Bank Sta 460 - -- - 455 - -- -- -- - - -- - - - -- - - - - - - - r - -- - -- - -- i 450 445 _... . . - 440 435 i •- - - -- ----- - - -- -------------------- - -- - -- 1000 1200 1400 1600 1800 2000 2200 2400 Station (ft) EXHIBIT 6 -A ABPE - FP Development Permit Revised Existing Condition Model 1/23/99 1:05:35 PM RS = 29831 Revised Existing Condition - Plan 02 470 • .05 >j< 04 — .07 .045 — - - .035 .045 .075 .045 ---- ---- - 6 4 - - - -- - - - -- - --- - , , , , , WS 100 year ultimat - - , ---- - - -- • - - - - -- ----- - -- - - - - - -- - ---- __ - - - -• -------- WS 2 -year ultimate 465 - - -- - -- -- --- Ground - - - — .... - ---- -- --- -- - -- -- - --- - -- •--- --- Ineff , ----- ------- - --- ---- ------ . __ � i Bank Sta 460 ------ , ,- -- - - --- - -- , ; - , - -- -•-- - 455 - - -- C ------- ______ __ .___ ____ _______ __ _ .. _ _ -_ m w — --- -- ----- ..... - -- - -- - - -- 450 445 - - -- -- --- - -- - - -- - -- - - - -- - -- - - --- - 440 - - - - - - - --- - - - - -- - -- -•- - - -- -- -- --- 435 1000 1500 2000 2500 3000 Station (ft) EXHIBIT 6 -B ABPE - FP Development Permit Revised Existing Condition Model 1/23/99 1:05:35 PM RS = 29651 Revised Existing Condition - Plan 02 465 a.05 .04 .065. -J<04 -- - - - - - -- —045 - - -_ -- - -- - 075 .045 - - 7 .. - - -- : - i - - - - -- --- - - - --- - - -- - - - -- - - ------- .. ._ - -- - ------------------ -------- WS 100 -Year ultimat _... ---- ....._ ---- . _ - -- -- ...;.... - _.- ---- - WS 2 -Year ultimate 460-- - -- - -------- - -- -- - - -- -- - - -- - -- -- >- ----- ---- r-- - - - - -- -- --- - - -- -- - - -- - -- - - - --- -- - ----- ----- ---� -- - - -• i Ground - -- - -- - - -- Ineff ................ - -- -- - - - -- - - -- - - - - - - -- - - - - - -- - - - - - -- - - -- Bank Sta 455 --------------- -- -I - - -- - -- -- -- - - -- -- --- -• -- - - - - - -- ------ °- 450 cu .. ---- . W -- - -- - - - - -- - - -- - -- 445 440 - - -- ---------- - -- - - -- ---- U ------------- -- - - - - -- - - -- - - - -- - - - -- -- -- - - -- - - 435 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 Station (ft) EXHIBT 6 -C ABPE - FP Development Permit Revised Existing Condition Model 1/23/99 1:05:35 PM RS = 29124 Revised Existing Condition - Plan 02 465-- .05 .04 - -- 07 - - _ _ .045 - - - -- - - -- - - -- - -- - - - e eng tT - i --------- - - -- - -- . - -- WS 100 -year ultimat - -- - -- -- -- WS 2-year ultimate Ground 460 Bank Sta 455 - -- - - - 450- - - -- - - - - - - cu w- -- - - . - - -- - -- -- - - -- - 445 440 435 1200 1400 1600 1800 2000 2200 2400 2600 Station (ft) EXHIBIT 6 -13 ABPE - FP Development Permit Revised Existing Condition Model 1/23/99 1:05:35 PM RS = 28890 Revised Existing Condition - Plan 02 465 -.05 04 065 04, - -- - -- -- -.045 - -- - 7, egen - -- 5 - - --- , - --- �- - -- - e —_ WS 100-ye ultimat -- - - - - -- ----------- - - - -- - - -- ---- - - - --- ----------- --- ------- ; . -- - - - - - -- -- - -- - -- -- -- - - - - -- --- - -- - -- WS 2-year ultimate 460 - - - -- - - ----------- -- ------ ----- -- - - -- - - -- --- , -- --- --- ----------'---- ---- -- Ground - --- - - - -- - - - -- - - - -- - - - - -- -- - - -- - - -- - - -- Ba nk Sta 455 - -- --- - - - - -: - -- - -- - - -- -- - °- 450 --- -- - - -- - ,- - ; -- - - -- -- - - - - -- @ -- -- - -- - w - - - -- -- - - - - -- - - -- --- 445 440 -- --- - - -- -- ---- - -- - -- - - -- - -- 435 1200 1400 1600 1800 2000 2200 2400 2600 2800 Station (ft) EXHIBIT 6 -E ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM RS = 30027 Proposed Condition - Plan 04 470 .05 .04 .065 - .04 • .07 ,045 egen - WS 100-year ultimat - - - - - - - - - - - - -- - - - - - - - - - - - - • - - - - - - ' WS 2-year ultimate 465 , Ground — — — , - - - -- , , Bank Sta 460 - - -- - - - -- - - - -- - -- 455 C , ----------------------- __ w _ N w --- ------ - - -- --- _ _. __ _ __ _ _ _ __ ._ __ _ _ __ --- __ _- _ - _ _ _ _. __ 450 445 - - -- -- 440 - -- - -- - --- -- - - - - - - -- 435 -- - 1000 1200 1400 1600 1800 2000 2200 2400 Station (ft) EXHIBIT 7 -A ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM RS = 29831 Proposed Condition - Plan 04 470- .04 .045 • - .035 04 - -- .075 .015 0 - -- - - • 6 4- �- 4 - - -- - -- - -- - 5.. -- WS 100-year ultimat -- ---- - ---- - - -- -- - - -- -- - -- - --- ---- - -- ...... .... ....... WS 2-year ultimate - - - - - - -- - ----- - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 465 Ground - Ineff --- - -- - -- - - -- - -- - - - - -- --- - --,--- - -- - -� - - � Bank Sta 460 - - - - - - - -- - --- - -- - - -- - - - -- 455 - - ----------------------- - -- -- , - - - -- - - - - - -- - - -------------- - -- -- - - -- - - - --- --- -- ._ __. ____ __t____ ._t__. _____________ __ . -- i - 450 445 - -- -- -- - --- - - ---- - ---- - 440 - - -- ----------------- - -- 435 ---- - - -- -- -- - ----- -- 1000 1500 2000 2500 3000 Station (ft) EXHIBIT 7 -13 ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM RS = 29651 Proposed Condition - Plan 04 465 k.05>1< .04 .065 3 04,' . -045- -- .04 .075 4 .015 - - -- ----- ------ --- --- ---------- 7 --- - - -' - - - - --- - - ---- - - - - -- ' - - - - - - - 4 - --- 4 . - -- gen -- - - - - - - - - - -- ------------ ----------- -- - - -- - - - - - - -- - - - - -- 5 5 WS 100 year ulf imat -- - -- -- - - . -... - - ---- -- ---- -- - -- --- - - --- � - - -- - - -- - , -- ------ WS 2 -Year ultimate -- - - - -- - - - - - - --- - -- - -, -... - - - - - -- --------- --------- --- - - - --= Ground 460 Ineff - , - - - - -- - - -- - - - - - - -- - - - - -- - , -- --- - -.i.- --- ------------------ � Bank Sta 455 - --- - - - - -- --------- -- - - -- -- - - - -- - ---- --------------- - - - -- - - - -- - - - - - -- -- .2 450 ------------ --- -- - --- - -- -- -- w -- 445 - - - - -- - - - -- - -- - - - -- - - - --- - - -- - - - -- - - - - -- -- - -- - -- -- -- - - - -- - -- --- -- - -- - -- - - - -- - - --- - - - -- - -- 440 - - ------------ -- - - - --- - - - - - -- - - - -- - -- -- - - -- - -- - 435 --- -- - -- -- - -- - - -- --- ---- - - - - -, -- I - - - -- -- --- -- - --------- - - - --- -• -- --- ------- -- - - - --- - - - -- - -- -- ----- -- •;--- - ---- - - - -- -- - - -- -- -- -- ----- - - - -- 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 Station (ft) EXHIBIT 7 -C ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM RS = 29124 Proposed Condition - Plan 04 465 �<--- .05 .04 - -- .07 - - - - -- 045 - - i WS 100 -year ultimat - - - - -- - -- - -- - -- - - -- - - -- - - - -- -- -- - - -- - - -- - - - - - - -, - WS 2-Year ultimate 46 0 Ground • Bank Sta 45 5- - - - -° 45 a w 44 5 - 440- 43 2200 2400 2600 Station (ft) 5 200 1400 1600 1800 2000 EXHIBIT 7 -13 ABPE - FP Development Permit Proposed lake enlargement 1/23/99 1:51:48 PM RS = 28890 Proposed Condition - Plan 04 465 .05 >k .04 >j< .065 —_ 04: -- 045 - — -- — - -- -- -- ... -------- 7r- - -- egen - - --- .... - WS 100 ultimat -- -- - - - -. • - - .... W ultimate 2 -year - -- - - - - -- - - - - - -- -- - - -- ---- - - - - -- ------- ----- - - - - -- - -------- -- -- - - - - -- - -- -- ---- - - - - -- - -- -- - - - - -- - -- -- - - - - -- Ground 460 - - - - - -- i-- -- - - - - -- ---- - -- --- - -- - -- ---------- - --- ----- --- ------- i-- --- - - - -- - - -- i • Bank Sta 455--- - - - - -- -- - --- - -- -° 450 � i w - - - - -- - -- - - - - -- -- -- -- --- - - - -- --- - -- - 445 440 --- Ij -------------------- ---------- 435 1200 1400 1600 1800 2000 2200 2400 2600 2800 Station (ft) EXHIBIT 7 -E V. Appendices Appendix A Approved Conditional Letter of Map Revision Request m Federal Emergency Management Agency �" Washington, D.C. 20472 MAY 18 1993 CERTIFIED MAIL RETURN RECEIPT REQUESTED The Honorable Mark Wolfe Mayor, City of Coppell P.O. Bog 478 Coppell, Texas 75019 Dear Mayor Wolfe: IN REPLY REFER TO: Case No.: 93- 06 -091R Community: City of Coppell, Texas Community No.: 480170 104 This is in response to a letter dated January 5, 1993, from Mr. Kenneth M. Griffin, P.E., City Engineer, City of Coppell, to the Federal Emergency Management Agency (FEMA) regarding the Flood Insurance Study (FIS) and Flood Insurance Rate Map (FIRM) for the City of Coppell. Mr. Griffin requested that FEMA evaluate the effects that proposed improvements to Andrew Brown Jr. Community Park along Denton Creek would have on the preliminary FIS and FIRM. All data required by FEMA to evaluate this request were submitted by Mr. Griffin with his letter dated January 5, 1993. In his January 5 letter, Mr. Griffin certified that this project is sponsored by the City of Coppell for public benefit, and therefore, is in accordance with Section 72.5 of the National Flood Insurance Program (NFIP) regulations. The fees associated with the review of this Conditional Letter of Map Revision (CLOMR) have been waived. We have reviewed the data submitted with respect to the data used to prepare the preliminary FIRM for the City of Coppell. We believe that if the proposed project is constructed as described in the report entitled "Request for Conditional Letter of Map Revision on Denton Creek in Coppell, Texas, Andrew Brown Jr. Community Park for the City of Coppell, Texas," prepared by Albert H. Halff Associates, Inc., dated December 1992, then a revision to the FIRM and FBFM would be warranted. This CLOMR is based on the data used to prepare the December 18, 1991, preliminary FIRM. The preliminary FIRM must become effective before a revision can be issued. Changes, if any, to the data used to prepare the preliminary FIRM before it becomes effective may affect this CLOMR determination. Upon completion of the project and receipt of the data listed below, we will make a final determination on revising the FIS report and FIRM. • Certification that all fill placed in the floodplain and below the proposed base compacted to 95 percent of the maximum Standard Proctor Test method issued by the and Materials (ASTM Standard D ®698) for all 100 -year floodplain currently effective 100 -year flood elevation (BFE) is density obtainable with the American Society for Testing areas to be removed from the N • As -built plans, certified by a registered professional engineer, of all proposed project elements • As -built HEC -2 hydraulic analysis of the 100 -year flood and 100 -year floodway • Copy of the public notice distributed by the community stating the community's intent to revise the floodway, or a statement by the community that it has notified all affected property owners and affected adjacent jurisdictions After receiving appropriate documentation to show that the project has been completed, FEMA may initiate a revision to the FIS report and FBFM. Because the BFEs would change as a result of this project, a 90 -day appeal period would be initiated, during which community officials and interested persons may appeal the revised BFEs based on scientific or technical data. Because the existing floodway may need to be modified as part of the revision, we would require a letter from you stating that the community would adopt and enforce the modified floodway. If the State of Texas has jurisdiction over either the floodway or its adoption by your community, we would need a copy of your letter to the appropriate State agency notifying it of the floodway modification and a copy of a letter from that agency stating its approval of the modification. This response to Mr. Griffin's request is based on minimum floodplain management criteria established under the NFIP. Your community is responsible for approving all proposed floodplain development, including this request, and for assuring that the necessary permits required by Federal or State law have been received. State and community officials, based on knowledge of local conditions and in the interest of human safety, may set higher standards for construction or may limit development in floodplain areas. If the State of Texas or the City of Coppell has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements. Should you have any questions regarding this matter, please contact the Chief, Natural and Technological Hazards Division of FEMA in Denton, Texas, at (817) 898 -5127, or Mr. John Magnotti of my staff in Washington, DC, at (202) 646 -3932, or by facsimile at (202) 646 -3445. cc: Mr. Kenneth M. Griffin, P.E. City Engineer City of Coppell Ms. Jean Hansen Albert H. Halff Associates, Inc. Sincerely, r ./ William R. Locke Chief, Risk Studies Division Federal Insurance Administration Appendix B Approved C.O.E. Section 404 (Wetland) Permit Request DEPARTMENT OF THE ARMY FORT WORTH DISTRICT, CORPS OF ENGINEERS P.O. BOX 17300 FORT WORTH, TEXAS 76102 -0300 REPLY TO AT TEN TION OF November 3, 1993 Operations Division Regulatory Branch SUBJECT: Project Number 199100002 Mr. C. Jean Hansen Albert H. Halff Associates, Inc. 8616 Northwest Plaza Drive Dallas, Texas 75225 Dear Mr. Hansen: RECEIVED NOV 10 1993 AMOH-HdAndfthn Thank you for your letter of October 5, 1993, concerning the proposed improvements to Andrew Brown Jr. Community Park in the City of Coppell, the County, Texas. This project has been assigned Project Number 199100002. Please include this number in all future correspondence concerning this project. Failure to reference the project number may result in a delay. We have reviewed this project in accordance with Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899. Under Section 404, the U. S. Army Corps of Engineers regulates the discharge of dredged and fill material into waters of the United States, including wetlands. Our responsibility under Section 10 is to regulate any work in, or affecting, navigable waters of the United States. Based on your description of the proposed work, and other information available to us, we have determined that this project will not involve activities subject to the requirements of Section 10. However, this project will involve activities subject to the requirements of Section 404. Therefore, it will require Department of the Army authorization. We have reviewed this project under the notification procedures of 33 CFR Part 330, Appendix A, C. 13. After full consideration of resource agency comments, we have determined that this project is authorized by nationwide permit 26 for Headwaters and Isolated Waters Discharges. To use this permit, the person responsible for the project must ensure that the work is in compliance with the specifications and conditions listed on the enclosure and the project plans listed in the October 5, 1993 Albert Halff letter and attachments. Failure to comply with these specifications and conditions invalidates the authorization and may result in a violation of the Clean Water Act. 2— Our verification for the construction of an activity under this nationwide permit is valid for a period of no more than two years from the date of this letter, or a lesser time upon expiration of the nationwide permit on a regional or national basis. Continued confirmation that an activity complies with the specifications and conditions and any changes to the nationwide permit is the responsibility of the permittee. This permit should not be considered as an approval of the design features of any activity authorized or an implication that such construction is considered adequate for the purpose intended. It does not authorize any damage to private property, invasion of private rights, or any infringement of federal, state, or local laws or regulations. Thank you for your interest in our nation's water resources. If you have any questions concerning our regulatory program, please contact Mr. David Madden at the address above or telephone (817)334 -4622. If you would like more information about our nationwide permit program, please contact us and we will furnish you with a copy of the nationwide permit regulations. S incerely, a �N ayne A. Lea Chief, Regulatory Branch Enclosure Copy Furnished: Mr. Rollin MacRae Texas Parks and Wildlife Department 4200 Smith School Road Austin, Texas 78744 Mr. Robert M. Short U.S. Fish and Wildlife Service Ecological Services Stadium Centre Building 711 Stadium Drive East, Suite 252 Arlington, Texas 76011 NATIONWIDE PERMIT 26 HEADWATERS AND ISOLATED WATERS DISCHARGES Discharges of dredged or fill material into headwaters and isolated waters provided: a. The discharge does not cause the loss of more than 10 acres of waters of the United States; b. The permittee notifies the district engineer if the discharge would cause the loss of waters of the United States greater than one acre in accordance with the "Notification" general condition. For discharges in special aquatic sites, including wetlands, the notification must also include a delineation of affected special aquatic sites, including wetlands. (Also see 33 CFR 330.1(e)); and c. The discharge, including all attendant features, both temporary and permanent, is part of a single and complete project. For the purposes of this nationwide permit, the acreage of loss of waters of the United States includes the filled area plus waters of the United States that are adversely affected by flooding, excavation or drainage as a result of the project. The ten -acre and one -acre limits of NWP 26 are absolute, and cannot be increased by any mitigation plan offered by the applicant or required by the DE. Subdivisions: For any real estate subdivision created or subdivided after October 5, 1984, a notification pursuant to subsection (b) of this nationwide permit is required for any discharge which would cause the aggregate total loss of waters of the United States for the entire subdivision to exceed one (1) acre. Any discharge in any real estate subdivision which would cause the aggregate total loss of waters of the United States in the subdivision to exceed ten (10) acres is not authorized by this nationwide permit; unless the DE exempts a particular subdivision or parcel by making a written determination that: (1) the individual and cumulative adverse environmental effects would be minimal and the property owner had, after October 5, 1984, but prior to January 21, 1992, committed substantial resources in reliance on NWP 26 with regard to a subdivision, in circumstances where it would be inequitable to frustrate his invest men t-backed expectations, or (2) that the individual and cumulative adverse environmental effects would be minimal, high quality wetlands would not be adversely affected, and there would be an overall benefit to the aquatic environment. Once the exemption is established for a subdivision, subsequent lot development by individual property owners may proceed using NWP 26. For purposes of NWP 26, the term "real estate subdivision" shall be interpreted to include circumstances where a landowner or developer divides a tract of land into smaller parcels for the purpose of selling, conveying, transferring, leasing, or developing said parcels. This would include the entire area of a residential, commercial or other real estate subdivision, including all parcels and parts thereof. (Section 404) NATIONWIDE PERMIT CONDITIONS GENERAL CONDITIONS The following general conditions must be followed in order for any authorization by a nationwide permit to be valid: 1. Navigation No activity may cause more than a minimal adverse effect on navigation. 2. Proper maintenance Any structure or fill authorized shall be properly maintained, including maintenance to ensure public safety. 3. Erosion and siltation control Appropriate erosion and siltation controls must be used and maintained in effective operating condition during construction, and all exposed soil and other fills must be permanently stabilized at the earliest practicable date. 4. Aquatic life movements No activity may substantially disrupt the movement of those species of aquatic life indigenous to the waterbody, including those species which normally migrate through the area, unless the activity's primary purpose is to impound water. 5. FAuipmen t. Heavy equipment working in wetlands must be placed on mats or other measures must be Laken to minimize soil disturbance. 6. Regional and case -by -case conditions The activity must comply with any regional conditions which may have been added by the division engineer (see 33 CFR 330.4(e)) and any case specific conditions added by the Corps. 7. Wild and Scenic Rivers No activity may occur in a component of the National Wild and Scenic River System; or in a river officially designated by Congress as a "study river" for possible inclusion in the system, while the river is in an official study status. Information on Wild and Scenic Rivers may be obtained from the National Park Service and the U.S. Forest Service. 8. Tribal rights No activity or its operation may impair reserved tribal rights, including, but not limited to, reserved water rights and treaty fishing and hunting rights. 9. Water quality certification In certain states, an individual state water quality certification must be obtained or waived (see 33 CFR 330.4(c)). 10. Coastal zone management In certain states, an individual state coastal zone management consistency concurrance must be obtained or waived. (see 33 CFR 330.4(d)). 11. Endangered Species No activity is authorized under any NWP which is likely to jeopardize the continued existence of a threatened or endangered species or a species proposed for such designation, as identified under the Federal Endangered Species Act, or which is likely to destroy or adversely modify the critical habitat of such species. Non - federal permittees shall notify the district engineer if any listed species or critical habitat might be affected or is in the vicinity of the project and shall not begin work on the activity until notified by the district engineer that the requirements of the Endangered Species Act have been satisfied and that the activity is authorized. Information on the location of threatened and endangered species and their critical habitat can be obtained from the U.S. Fish and Wildlife Service and National Marine Fisheries Service. (see 33 CFR 330.4(0) 12. Historic properties No activity which may affect Historic properties listed, or eligible for listing, in the National Register of Historic Places is authorized, until the DE has complied with the provisions of 33 CFR 325, Appendix C. The prospective permittee must notify the district engineer if the authorized activity may affect any historic properties listed, determined to be eligible, or which the prospective permittee has reason to believe may be eligible for listing on the National Register of Historic Places, and shall not begin the activity until notified by the District Engineer that the requirements of the National Historic Preservation Act have been satisfied and that the activity is authorized. Information on the location and existence of historic resources can be obtained from the State Historic Preservation Office and the National Register of Historic Places (see 33 CFR 330.4(8)). 13. Notification (a) Where required by the terms of the NWP, the prospective permittee must notify the District Engineer as early as possible and shall not begin the activity: (1) Until notified by the District Engineer that the activity may proceed under the NWP with any special conditions imposed by the district or division engineer; or (2) If notified by the District or Division engineer that an individual permit is required; or (3) Unless 30 days have passed from the District Engineer's receipt of the notification and the prospective permittee has not received notice from the District or Division Engineer. Subsequently, the permittee's right to proceed under the NWP may be modified, suspended, or revoked only in accordance with the procedure set forth in 33 CFR 330.5(d)(2). (b) The notification must be in writing and include the following information and any required fees: (1) Name, address and telephone number of the prospective permittee; (2) Location of the proposed project; (3) Brief description of the proposed project; the project's purpose; direct and indirect adverse environmental effects the project would cause; any other NWP(s), regional general permit(s) or individual permit(s) used or intended to be used to authorize any part of the proposed project or any related activity; (4) Where required by the terms of the NWP, a delineation of affected special aquatic sites, including wetlands; and (5) A statement that the prospective permittee has contacted: (i) The USFWS /NMFS regarding the presence of any Federally listed (or proposed for listing) endangered or threatened species or critical habitat in the permit area that may be affected by the proposed project; and any available information provided by those agencies. (The prospective permittee may contact Corps District Offices for USFWS/NMFS agency contacts and lists of critical habitat.) (ii) The S14PO regarding the presence of any historic properties in the permit area that may be affected by the proposed project; and the available information, if any, provided by that agency. (c) The standard individual permit application form (Form ENG 4345) may by used as the notification but must clearly indicate that it is a PDN and must include all of the information required in (b)(1) -(5) of General Condition 13. (d) In reviewing an activity under the notification procedure, the District Engineer will first determine whether the activity will result in more than minimal individual or cumulative adverse environmental effects or will be contrary to the public interest. The prospective permittee may, at his option, submit a proposed mitigation plan with the predischarge notification to expedite the process and the District Engineer will consider any optional mitigation the applicant has included in the proposal in determining whether the net adverse environmental effects of the proposed work are minimal. The District Engineer will consider any comments from Federal and State agencies concerning the proposed activity's compliance with the terms and conditions of the nationwide permits and the need for mitigation to reduce the project's adverse environmental effects to a minimal level. The district engineer will upon receipt of a notification provide immediately (e.g. facsimile transmission, overnight mail or other expeditious manner) a copy to the appropriate offices of the Fish and Wildlife Service, State natural resource or water quality agency, EPA, and, if appropriate, the National Marine Fisheries Service. With the exception of NWP 37, these agencies will then have 5 calendar days from the date the material is transmitted to telephone the District Engineer if they intend to provide substantive, site - specific comments. If so contacted by an agency, the District Engineer will wait an additional 10 calendar days before making a decision on the notification. The District Engineer will fully consider agency comments received within the specified time frame, but will provide no response to the resource agency. The District Engineer will indicate in the administrative record associated with each notification that the resource agencies' concerns were considered. Applicants are encouraged to provide the Corps multiple copies of notifications to expedite agency notification. If the District Engineer determines that the activity complies with the terms and conditions of the NWP and that the adverse effects are minimal, he will notify the permittee and include any conditions he deems necessary. If the District Engineer determines that the adverse effects of the proposed work are more than minimal, then he will notify the applicant either: (1) that the project does not qualify for authorization under the NWP and instruct the applicant on the procedures to seek authorization under an individual permit; or (2) that the project is authorized under the nationwide permit subject to the applicant's submitting a mitigation proposal that would reduce the adverse effects to the minimal level. This mitigation proposal must be approved by the District Engineer prior to commencing work. If the prospective permittee elects to submit a mitigation plan, the DE will expeditiously review the proposed mitigation plan, but will not commence a second 30 -day notification procedure. If the net adverse effects of the project (with the mitigation proposal) are determined by the District Engineer to be minimal, the District Engineer will provide a timely written response to the applicant informing him that the project can proceed under the terms and conditions of the nationwide permit. (e) Wetlands Delineations Wetland delineations must be prepared in accordance with the current method required by the Corps. The permittee may ask the Corps to delineate the special aquatic site. There may be some delay if the Corps does the delineation. Furthermore, the 30 -day period will not start until the wetland delineation has been completed. (f) Mitigaton Factors that the District Engineer will consider when determining the acceptability of appropriate and practicable mitigation include, but are not limited to: (1) To be practicable the mitigation must be available and capable of being done considering costs, existing technology, and logistics in light of overall project purposes; (2) To the extent appropriate, permittees should consider mitigation banking and other forms of mitigation including contributions to wetland trust funds, which contribute to the restoration, creation, replacement, enhancement, or preservation of wetlands. Furthermore, examples of mitigation that may be appropriate and practicable include but are not limited to: reducing the size of the project; establishing buffer zones to protect aquatic resource values; and replacing the loss of aquatic resource values by creating, restoring, and enhancing similar functions and values. In addition, mitigation must address impacts and cannot be used to offset the acreage of wetland losses that would occur in order to meet the acreage limits of some of the nationwide permits (e.g. 5 acres of wetlands cannot be created to change a 6 acre loss of wetlands to a 1 acre loss; however, the 5 created acres can be used to reduce the impacts of the 6 acre loss). SECTION 404 ONLY CONDITIONS In addition to the General Conditions, the following conditions apply only to activities that involve the discharge of dredged or fill material and must be followed in order for authorization by the nationwide permits to be valid: 1. Water supply intakes No discharge of dredged or fill material may occur in the proximity of a public water supply intake except where the discharge is for repair of the public water supply intake structures or adjacent bank stabilization. 2. S hellfish production No discharge of dredged or fill material may occur in areas of concentrated shellfish production, unless the discharge is directly related to a shellfish harvesting activity authorized by nationwide permit 4. 3. Suitable material No discharge of dredged or fill material may consist of unsuitable material (e.g., trash, debris, car bodies, etc.) and material discharged must be free from toxic pollutants in toxic amounts (see section 307 of the Clean Water Act). 4. Mitigation Discharges of dredged or fill material into waters of the United States must be minimized or avoided to the maximum extent practicable at the project site (i.e. on- site), unless the DE has approved a compensation mitigation plan for the specific regulated activity. 5. Spawning areas Discharges in spawning areas during spawning seasons must be avoided to the maximum extent practicable. 6. Obstruction of high flows To the maximum extent practicable, discharges must not permanently restrict or impede the passage of normal or expected high flows or cause the relocation of the water (unless the primary purpose of the fill is to impound waters). 7. Adverse impacts from impoundments If the discharge creates an impoundment of water, adverse impacts on the aquatic system caused by the accelerated passage of water and/or the restriction of its flow shall be minimized to the maximum extent practicable. 8. Waterfowl breeding areas Discharges into breeding areas for migratory waterfowl must be avoided to the maximum extent practicable. 9. Removal of temporary fills Any temporary fills must be removed in their entirety and the affected areas returned to their preexisting elevation. NATIONWIDE PERMITS The following is a listing of the Nationwide Permits currently in effect. 1. AIDS TO NAVIGATION 2. STRUCTURES IN ARTIFICIAL CANALS 3. MAINTENANCE 4. FISH AND WILDLIFE HARVESTING, ENHANCEMENT, AND ATTRACTION DEVICES AND ACTIVITIES * 5. SCIENTIFIC MEASUREMENT DEVICES 6. SURVEY ACTIVITIES * 7. OUTFALL STRUCTURES 8. OIL AND GAS STRUCTURES 9. STRUCTURES IN FLEETING AND ANCHORAGE AREAS 10. MOORING BUOYS 11. TEMPORARY RECREATIONAL STRUCTURES 12. UTILITY LINE BACKFILL AND BEDDING *13. BANK STABILIZATION *14. ROAD CROSSING 15. U.S. COAST GUARD APPROVED BRIDGES 16. RETURN WATER FROM UPLAND CONTAINED DISPOSAL AREAS *17. HYDROPOWER PROJECTS *18. MINOR DISCHARGES 19. 25 CUBIC YARD DREDGING 20. OIL SPILL CLEANUP *21. SURFACE MINING ACTIVITIES 22. REMOVAL OF VESSELS 23. APPROVED CATEGORICAL EXCLUSIONS 24. STATE ADMINISTERED SECTION 404 PROGRAMS 25. STRUCTURAL DISCHARGE *26. HEADWATERS AND ISOLATED WATERS DISCHARGES 27. WETLAND RESTORATION ACTIVITIES 28. MODIFICATIONS OF EXISTING MARINAS 29. RESERVED 30. RESERVED 31. RESERVED 32. COMPLETED ENFORCEMENT ACTIONS *33. TEMPORARY CONSTRUCTION AND ACCESS *34. CRANBERRY PRODUCTION ACTIVITIES 35. MAINTENANCE DREDGING OF EXISTING BASINS 36. BOAT RAMPS *37. EMERGENCY WATERSHED PROTECTION *38. CLEANUP OF HAZARDOUS AND TOXIC WASTE 39. RESERVED 40. FARM BUILDINGS * These Nationwide permits may require that notification be provided to the U S Army Corps of Engineers. 000 ALBERT H. H ASSOCIATES, INC. 000 ENGINEERS • SCIENTISTS ' SURVEYORS OEM DALLAS • ARLINGTON • CHICAGO FORT WORTH 06:6 NORTHWEST ?I—AZA DRUE • D -__ = =_ Xc S %:2_: October S, 1993 AVO 12239 U.S. Army Corps of Engineers Operations Division CES WF -OD -O P.O. Box 17300 Fort Worth, Texas 76102 -0300 Attn: David E. Madden, Ecologist Permits Section Re: Project Number 199100002 Modification to Proposed Discharge Plan Andrew Brown Jr. Community Park Coppell, Texas Dear David: Enclosed you will find modifications to Figures 5 and 8 from the "Notification of Proposed Discharge for Proposed Improvements to Andrew Brown Jr. Community Park ", submitted in February 1993. We have modified the proposed grading plan to preserve 2.1 acres of the wetland area along the Park Meadows outfalls as requested by the U.S. Fish and Wildlife Service. Tables D -1 and D -2 from the referenced Notification Report have also been corrected and are included for your information. In addition, a landscaping plan is provided which addresses the other U.S. Fish and Wildlife Service comments. Tree planting, signage and nest boxes are shown on this plan. Trees will be planted by the City of Coppell staff from the city's tree farm over a 2 to 5 year period. Signage and nest boxes will also be installed by city staff and volunteer groups as the park is developed. Maintenance in the preserved woodland and wetland areas will be minimal consisting of primarily clean-up (see maintenance plan also enclosed). These activities are being coordinated with Mr. Ray Whitney, TPWD, "Backyard Habitat Program" to insure that the habitat areas are preserved and developed consistent with this program. TRANSPORTATION WATER RESCuSCES _A \C -= .= _, \!=.y \!URIC. ?N61RCw!d? \ "��_ ST%•t:C - URAI SURVEYING G! nR.+t vnc;- ^•. Nn SYS - E%! G ? S ! -= . ;:='IS G AND MEN ALBERT H. HALFF ASSOCIATES, INC. MEN ENGINEERS • SCIENTISTS • SURVEYORS MEN Mr. David Madden October 5, 1993 Page 2 On behalf of the City of Coppell, Albert H. Halff Associates, Inc. requests Department of the Army authorization for the proposed improvements, as modified, to Andrew Brown Jr. Community Park. Two copies of this package are provided for your use. Thank you for your help in the planning of this site. Please do not hesitate to call if you have any questions or comments. Sincerely, ALBERT H. HALFF ASSOCIATES, ENTC. /'/- Z 1_dxlc C Jean Hansen, P.E. ►Q 8 enclosure cc: Steve Giovannini, MESA Design Group Rick Weiland, City of Coppell SUMMARY OF EAST WETLANDS AREA TABLE D -1 WETLAND BALANCE PARK MEADOWS OUTFALLS AND EAST LAKE EXPANSION Total Wetlands Disturbed Converted to Deep Water Habitat Regraded back to shallow wetlands Filled Total Wetlands Preserved Total High Ground Converted to: Deep Water Aquatic Habitat Wetlands or Shallow Water Habitat 1.5 ac 0.5 ac 2.7 ac 3.0 ac 0.7 ac 4.7 ac 2.1 ac 3.7 ac Paqe 1 TABLE D -2 SUMMARY OF EXISTING AND PROPOSED WETLAND AND DEEP WATER HABITATS Wetlands: Park Meadows Outfalls 6.8 ac 2.1 ac Preserved Wetlands (not disturbed) Park Meadows outfalls 0.5 ac Existing regraded to shallow lake edge and swales 0.7 ac High ground graded to shallow lake edge and swale Cottonwood Branch, Denton Creek, 1.6 ac Shallow drainage swales throughout site Existing Lake Edges and Parkway 0.2 ac West lake edge Blvd. and Heartz Rd. channels 4.2 ac 4.2 ac Preserved Wetlands (not disturbed) Total Wetlands Existing 11.0 ac 9.3 ac Proposed See Figure 8 for locations of areas referenced. Note: Total preserved wetlands: 6.3 ac Page 2 Existin Proposed Deep Water Aquatic Habitats: West Lake 2.5 ac 3.0 ac East Lake 9.0 ac 12.5 ac Total 11.5 ac 15.5 ac Wetlands: Park Meadows Outfalls 6.8 ac 2.1 ac Preserved Wetlands (not disturbed) Park Meadows outfalls 0.5 ac Existing regraded to shallow lake edge and swales 0.7 ac High ground graded to shallow lake edge and swale Cottonwood Branch, Denton Creek, 1.6 ac Shallow drainage swales throughout site Existing Lake Edges and Parkway 0.2 ac West lake edge Blvd. and Heartz Rd. channels 4.2 ac 4.2 ac Preserved Wetlands (not disturbed) Total Wetlands Existing 11.0 ac 9.3 ac Proposed See Figure 8 for locations of areas referenced. Note: Total preserved wetlands: 6.3 ac Page 2 C ! 9 �r�=�L� Fhe City With A Beautiful Future September 24, 1993 U.S. Army Corps of Engineers Operations Division CESWF - OD - O P. O. Box 17300 Fort Worth, Texas 76102 - 0300 David Madden Ecologist Permit Section Re: Project 199100002 Andrew Brown Jr. Community Park Dear Mr. Madden: P.O. Box 478 Coppell, Texas 7019 214- 462 -0022 The purpose of this correspondence is to provide your office information regarding the proposed maintenance plan for the above referenced park site currently in the process of obtaining a conditional 404 Permit from the Corps of Engineers. The proposed park site is a 115 acre multi -use park site located in the north - central quadrant of Coppell. Once fully developed, this site would consist of several baseball/ softball diamonds, multi -use hard surface courts, picnic area, playground area, hiking trail, and preserved woodland, and wetland areas. The following narrative should provide needed information on the maintenance plan that the City of Coppell and its Parks and Recreation Division will follow on the Andrew Brown Jr. Community Park site. Preserved Woodland Areas: The preserved woodland areas within Andrew Brown Park lie in those areas contiguous with Denton Creek and Cottonwood Branch. The Park and Recreation staff will perform routine maintenance in these areas throughout the course of the year. Trash pickup would take place on a monthly basis to prevent a buildup of trash and debris from surrounding properties. The removal of brush that may become present during the year would be removed on a annual basis. Parks and Recreation staff would provide minor tree pruning as may be necessary on a yearly basis. Parks and Recreation staff will also be conscious of minimizing maintenance activities in those passive areas which may be host to ground nesting fowl and other wildlife inherent to these areas. MAI�i ITENAINCE PLAN PAGE 2 Preserved Wetland Area: The preserved wetland area lies along the southeastern border of the park site and most particularly along the Park Meadows outfalls. As with the preserved woodland area, the Parks and Recreation Division will perform routine maintenance in these areas throughout the course of the year. Trash pickup would take place on a weekly basis to prevent a buildup of trash or debris that could accumulate in this area. Any removal of brush that may become present in this area would be removed on an annual basis, most likely in the winter months. Parks and Recreation staff would also provide for the monthly . inspection and needed maintenance of various interpretive signage and nest boxes that will be located in the preserved wetland area. Parks and Recreation staff will minimize maintenance activities in those areas that could provide habitat for water fowl and wildlife inherent to this area. Active Recreation Areas: Among the active recreation areas that will be found in Andrew Brown Jr. Community Park, will be several baseball /softball fields, an eighteen hole frisbee golf course, playground area, and a concrete surface multi -use court. The Parks and Recreation Division will maintain these active facilities throughout the course of the year. The removal of trash in active recreation areas takes place on a weekly basis. During scheduled activities such as practice or games, removal of trash may take place more frequently, if necessary. Should these areas have an irrigation system, maintenance and repair of these systems will take place on a monthly basis. The Parks and Recreation Division will provide for mowing maintenance of these facilities typically on a weekly basis from mid -March until mid - October in those areas that contain irrigation. In those active recreation areas not having an irrigation system, mowing will typically occur on a weekly to bi- weekly basis. The removal of brush that may become present during the course of the year would be removed on an as needed basis as this is seen at the site. The pruning of trees that may be necessary in the active recreation areas will take place on an annual basis. Grassland Areas: In those areas where grassland is within the park site, there will be a minimal amount of maintenance that would occur during the course of the year. Removal of trash and debris would take place on a bi- weekly basis in order to prevent a buildup of trash that could accumulate in this area. Any removal of brush that would be present in these areas would be removed on an annual basis, most likely during the winter months. The Parks and Recreation Division will provide for mowing maintenance of these areas typically on a monthly basis, beginning in mid -March and concluding to mid - October. In those areas which have native wildflowers in place, mowing maintenance will be minimal during the active growing season of these plants. Parks and Recreation staff will be sensitive to providing maintenance in those passive areas that could be host for ground nesting fowl and other wildlife inherent to this area. MAIIi 1TENAINCE PLAN PAGE 3 West End of Andrew Brown Jr. Community Park: The western portion of the community park which is bordered to the east of Denton Tap Road will eventually be developed with two baseball /softball fields and a hiking trail. Until that development takes place, the Parks and Recreation Division will provide for minimal maintenance for this area. This area currently has native grasses and wildflowers that are present in this location. The Parks and Recreation Division would provide for mowing maintenance of this site approximately twice a year. In those areas having native wildflowers, mowing maintenance would be minimized during the active growing season of these plants. The Parks and Recreation Division would be sensitive to those areas which may be host for ground nesting birds and other wildlife that may be inherent to this area. Maintenance in those areas would be minimized accordingly. Tree Saplings: The Coppell Parks and Recreation Division will provide for the planting of various tree saplings to be located at Andrew Brown Jr. Community Park during the course of the park's development. Up to three hundred trees are anticipated to be planted on an annual basis during the first 2 -3 years after the proposed development of the park is completed. Among the trees that would be planted in this park site would be Bald Cypress, Live Oak and Sweet Gum. Additional tree plantings will taye place as resources are available by the city. In those areas of the Community Park that will have the planting of saplings, Parks and Recreation staff will provide normal maintenance of these plant materials during the course of the year. This would include, but not be limited to, initial staking of trees during the first year of their transplanting, necessary tree pruning on a annual basis, and removal of any dead plant material. I hope that this information will be helpful when giving consideration to the City of Coppell's request in this matter. Should you have any questions regarding this matter, please contact me. Sincerely, V2 Rick Wieland Parks and Recreation Manager RSW /rsw cc: Steven G. Goram, Director of Public Works N PRESERVED WOODLANDS- PROPOSED s• l "_`ir::t, FISHING ,• a�i1Y _ .�iiit t " • ,'~ 1 .; 1� il�, tTTI I'iILSEIiVLI) - W DOCK ���E1�.• : ' 'j''.•:/ "':' "�. ''•, +, 'f" `, 0.04 Ac WElLaui OODLANDS > t +I I I , d ' ft - /\ uuocn TO ORAN o i0000 w4_400 coo A F oo �— 1 SCALE IN FEETi1� %011ZANM D ;.f•���'Ax+.E1� %iJ Q5. ^` yr irv_;! l ' �J!' 11 AC WE11 A+aS w V••• t er ,,,J -J `vim' b S 11. Rl TO (0101 B(TAT tlA U� ; �1 T AQUATIC NABfTAT � AIM �iy AT J�OUA Al PROPOSED LAKE Dt-ARCEAEM /,.+� / E DC r fti -- • k 1 / /DEEP / ' //� �^ / , I �� 1' DEEPSAIEA AOUATiC NADITAT 101 DEV i' ..,':� �-':.� Y�•1 Ff.�'•aitl ..r T / __ �� \"r\t.r` .r /// .' fOITK'NAg ij '�_� \, -% IET s.s ACRES. �� r • � s 1 f��t tE x y c T- Osf� ` . � i + j / � / f � - � I�•'`: osEO .r_ t {; _'I AC syALesi ") 1i ( %�/� /`/� /�f, // l e q 1(;;; • 1. kL-o� �� I l.s AcT4Aros l _ �� �_'� , � % . :� : MOPa]ED 0.1 AWE �, O Y'f•- ( R1T TO FORM f� Y w `l ) \. • r. L � / S R _ T C 1' SIULLO■ LAKE EOCE o ` M fir" t / 1 \ _ ,4 `�•— _ �;t -'] /�.6 ��' ^�• 6 r TFALL 1 OUTFALL ! PITFALL ] Ol7T /ALL 1 T(.LLL S PARK MEADOWS SUBDIVISION 1 •- ' `' ��. - � 0.5 AC WETLAND: NOTE: r REGRADED TO SHALLOW } Q pNC� �' _� . _ RS' �'4- ✓' ry LAAE EDCE SEE FIGURES 6 AND 7 _ co�� 0 00 e - ''� *; _ - r ' PT' EAATZ ROAD FOR SECTIONS A -A AND B -B. CHANNEL - 'r. PROPERTY LINE PRESERVED FIGURE' J WOODL ANDS LEGEND ANDREW GRADING AND WETLAND DELINEATION ANDREW BROWN Jr. COMMUNITY PARK - - - -- PROPOSED WETLAND DELINEATION kMM PROPOSED LAKE ENLARGEMENTS 1 CITY OF COPPELL, TEXAS K - N 4.0 AC J 15.5 TOTAL ACRES MEN ALl1IiIS.'I' H. HA1.IrF 111=® PROPOSED WETLANDS m EXISTING DEEPWATER AQUATIC HABITAT MINN ASSOCIA'I'LS, INC. 1 9.3 TOTAL ACRES !! 11.5 AC MEN REwsmt SEPTEMBER 1993 EXISTING WETLANDS NOTF)CATK)N OF PROPOSED DISCHARGE SUBWTTED FEB.1993 o i oq !oo co e oo 12oo SCALE IN FEET L PRESERVED A•. LT AC WETLANDS FLLED ,T � 0.04 AC WETLAPOS GRADED TO GRAN — 1-5 AC WETLANDS CUT 10 FORT DEEPWATEA AQUATIC HAWAT PROPOSED LAAE EHL.ARGEWX DEEPWA ,EA A( AIIC HAWRAT ,- 10' �� EP DE ,tAl].F7nVIi11 �/ KT M ArnES. - - PROPOSED / /� 0.2 A CC SHA SHALLOW , 1.6 A SWALES LAKE EDGE 1.6 AC FETLAIDS WETLANDS 0.1 AC WETLANDS i CUT 10 FORM SHALLOW LAKE o O ; 1 r ��� . • - ` - t)� EDGE AND SWALE. cc I EXIST'J. Y >`— •' O TFALL 1 OUTFALI E OUIfALL S OUTFALL A Tf AIL 6 PARK MEADOWS SUBDIVISION E.1 AC WMAMS PRE - MAVED O.S AC 1 9 CN , � V = - � REGRADED ro SHALLOW . • • Q!���"� — LAKE EDGE nO �pO 0 /, - P�� IIEARTS ROAD CHANWL [P ROPERTY LINE � PRESERVED WOODLANDS FIGURE, 8 L 1!,GI?ND EXISTING VS. PROPOSED WETLAND AREAS ANDREW BROWN Jr. COMMUNITY PARK - - - -- PROPOSED WETLAND DELINEATION `C� PROPOSED LAKE ENLARGEMENTS CITY OF COPPELL, TEXAS ------- EXISTING WETLAND DELINEATION 33�� 4.0 AC 15.5 TOTAL ACRES MM ALIl1:RT H. HALPF ISM PROPOSED WETLANDS i�j'. ' EXISTING DEEPWATER AQUATIC HABITAT •■� ASSRIATI;S INC. 9.3 TOTAL ACRES 11.5 AC MEIN IaEV{sm SEPTEMBER 1993 EXISTING WETLANDS - (PRESERVED) TEOTIFXATKNI OF PROPOSED OaaARGE SUBWTTED FE&1993 J2Jd'Zd2JdSAXl \2J3dVd \S10�d \ :U i13dVd 2661 9t':21:Z1 ZZ 'S P'M PRESERVED WOODLANDS PROPOSED FISHING PRESERVED DOCK WOODLANDS A•. LT AC WETLANDS FLLED ,T � 0.04 AC WETLAPOS GRADED TO GRAN — 1-5 AC WETLANDS CUT 10 FORT DEEPWATEA AQUATIC HAWAT PROPOSED LAAE EHL.ARGEWX DEEPWA ,EA A( AIIC HAWRAT ,- 10' �� EP DE ,tAl].F7nVIi11 �/ KT M ArnES. - - PROPOSED / /� 0.2 A CC SHA SHALLOW , 1.6 A SWALES LAKE EDGE 1.6 AC FETLAIDS WETLANDS 0.1 AC WETLANDS i CUT 10 FORM SHALLOW LAKE o O ; 1 r ��� . • - ` - t)� EDGE AND SWALE. cc I EXIST'J. Y >`— •' O TFALL 1 OUTFALI E OUIfALL S OUTFALL A Tf AIL 6 PARK MEADOWS SUBDIVISION E.1 AC WMAMS PRE - MAVED O.S AC 1 9 CN , � V = - � REGRADED ro SHALLOW . • • Q!���"� — LAKE EDGE nO �pO 0 /, - P�� IIEARTS ROAD CHANWL [P ROPERTY LINE � PRESERVED WOODLANDS FIGURE, 8 L 1!,GI?ND EXISTING VS. PROPOSED WETLAND AREAS ANDREW BROWN Jr. COMMUNITY PARK - - - -- PROPOSED WETLAND DELINEATION `C� PROPOSED LAKE ENLARGEMENTS CITY OF COPPELL, TEXAS ------- EXISTING WETLAND DELINEATION 33�� 4.0 AC 15.5 TOTAL ACRES MM ALIl1:RT H. HALPF ISM PROPOSED WETLANDS i�j'. ' EXISTING DEEPWATER AQUATIC HABITAT •■� ASSRIATI;S INC. 9.3 TOTAL ACRES 11.5 AC MEIN IaEV{sm SEPTEMBER 1993 EXISTING WETLANDS - (PRESERVED) TEOTIFXATKNI OF PROPOSED OaaARGE SUBWTTED FE&1993 J2Jd'Zd2JdSAXl \2J3dVd \S10�d \ :U i13dVd 2661 9t':21:Z1 ZZ 'S P'M Appendix C Current Effective HEC -2 Model - (DENCR- DW.DAT) 1************* * * * * * * * * * ** * * * * * * * *** * * * * * * * * ** * HEC -2 WATER SURFACE PROFILES * Version 4.6.2; May 1991 * * * RUN DATE 17DEC98 TIME 17 :16:06 ************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ******** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET, SUITE D * DAVIS, CALIFORNIA 95616 -4687 * (916) 756 -1104 ******** * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ** Output of the Current Effective HEC -2 Model DENCR- DW.dat X X XXXXXXX XXXXX X X X X X X X X X XXXXXXX XXXX X X X X X X X X X X X X XXXXXXX XXXXX 1 17DEC98 17:16:06 ****** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HEC -2 WATER SURFACE PROFILES Version 4.6.2; May 1991 ****** * * * * *** * * * * * * * * * * * * * * * * ** ** * * ** XXXXX X X X XXXXX XXXXX X X XXXXXXX T1 COPPELL CITY -WIDE STORM WATER MANAGEMENT STUDY T2 EXISTING CONDITIONS WITH FULLY DEVELOPED 2 YEAR DISCHARGE T3 DENTON CREEK -- DENCR- DW.DAT -- A.H. HALFF ASSOC. J1 ICHECK INQ NINV IDIR ' STRT METRIC HVINS Q 0 2 0 0 .00046 0 0 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 1 0 -1 PAGE 1 THIS RUN EXECUTED 17DEC98 17 :16:06 WSEL FQ 0 449.00 CHNIM ITRACE Existing Condition HEC -2 Model - Page 1 J3 VARIABLE CODES FOR SUMMARY PRINTOUT 5551.8 GR 448.0 5860 150 5870 GR 453 5965 453 5975 GR 38 43 1 26 7 37 8250 J5 LPRNT NUMSEC 5 * * * * * ** *REQUESTED 5704 SECTION NUMBERS * * * * * * ** NH -10 -10 1330 450 X1 19930 55 NC .035 .055 .045 .1 .3 5208 GR QT 5 7432 12847 20244 23083 36200 448 X1 18440 31 5480 5585 10000 4500 5880 X3 0 0 0 3750 470 7650 470 GR 460 1000 448 1300 448 1800 447 GR 440 2330 440 2500 445 2600 448 GR 450 5350 451 5460 449 5480 446 GR 434 5535 431.4 5545 431.4 5555 447 GR 450 5700 450 5850 448 6000 450 GR 450 6700 447 6780 466 6780 450 GR 470 7650 NC .035 .055 .035 .1 .3 X1 19330 61 5551.8 5965 650 650 650 X3 0 0 0 4000 470 8250 470 GR 454 1000 450 1050 448 1070 447.6 GR 446 2410 445 2450 443 2600 443 GR 445 2710 445 2860 444 2900 443 GR 446 2970 446 3020 445 3040 443 GR 446.7 3250 447 3350 447 3500 446 GR 447 3650 446 3710 446 3850 447 GR 446 4080 446 4160 446 4450 445 GR 447 4740 447 4800 447.3 5010 448 1 17DEC98 17:16:06 GR 448.0 5490 448.0 5551.8 GR 448.0 5860 445 5870 GR 453 5965 453 5975 GR 449 7035 449 7135 GR 460 8250 470 NH 5 .045 5704 .035 NH 7350 449 1330 450 X1 19930 55 5704 6190 X3 0 0 0 5208 GR 454.3 1000 450 1040 GR 448 1220 448 1320 GR 449 1530 447.2 1900 GR 447 2540 447 3070 2250 445 2300 2750 448 5250 5515 440 5525 5560 451 5585 6230 452 6500 6940 460 7440 1750 2670 2920 3070 3550 3940 4550 5040 447 445 445 447 444 447 446 448.0 2210 2680 2960 3100 3600 4050 4700 5280 431.7 5617 431.7 5777 440 5880 431.7 5897 452 6205 451 6315 450 7185 455 7915 5996 .045 6070 .035 800 550 600 470 7350 470 448 1160 449 1190 449 1330 450 1460 447 2170 446.2 2280 446.3 3240 446 3350 Existing Condition HEC -2 Model - Page 2 448 440 450 455 6190 449 450 446.4 445 PAGE 2 5842.2 5915 6435 8215 .055 1210 1520 2420 3360 GR 445 3370 446 3380 447 3460 447.5 3750 447 4070 GR 447 4090 448 4150 448.5 4300 448.5 4660 448.5 4960 GR 448.5 5130 448.5 5400 448.5 5600 448.5 5700 448.5 5704 GR 432 5770 432 5930 448.5 5996 448.5 6050 448.5 6070 GR 437 6110 432 6130 437 6150 453 6190 453 6220 GR 452 6440 451 6550 450 6650 449 6840 449 6900 GR 450 6920 451 7030 452 7070 453 7130 460 7350 NC .055 .055 .035 .1 .3 X1 21560 54 4939.61 5300 1600 1150 1450 X3 0 0 0 4939 470 6540 470 GR 460 1000 455 1200 454 1250 454 1290 453 1320 GR 452 1360 451 1450 450 1480 449 1570 448 1800 GR 448.2 2050 449 2500 449 2730 448.5 3050 449 3260 GR 449 3400 449.7 3520 450 3700 449 3800 449 3900 GR 450 3920 448 4170 449 4250 450 4280 451 4340 GR 451 4420 452 4500 452 4820 452.8 4939.61 432.7 5020 GR 432.7 5100 432.58 5140 432.46 5180 432.4 5200 438 5220 GR 454.0 5270 455. 5300 455 5340 455 5360 454 5460 GR 453 5630 452 5780 452 5790 451 5850 451 5870 GR 453 5880 453 5920 453 5970 452 6150 452 6220 GR 453 6270 455 6340 460 6450 465 6540 NH 5 .05 1300 .06 5094 .035 5460 .055 6610 .05 NH 6780 IMPORTED FROM DOWDY MODEL 89123PM.DAT - 05/21/92 X1 22370 28 5094 5460 800 400 800 X3 0 0 0 5094 470 6780 470 GR 460 1000 449 1300 449 1750 448 1950 448 2550 GR 450 2950 450 3670 449 4010 448 4070 449.5 4370 GR 450.5 4970 450.5 5094 434.04 5160 434.04 5220 434.04 5280 GR 432.5 5320 435 5345 445 5360 446 5380 452.7 5405 GR 454.5 5460 454 5870 452.5 6310 452 6480 453.5 6550 GR 457 6610 459.5 6630 466 6780 1 17DEC98 17:16:06 PAGE 3 NC .055 .055 .035 .1 .3 NH 5 .055 5468.04 .035 5694.28 .055 6610 .035 7000 .055 NH 7550 X1 23800 52 6610 7000 720 680 1430 X3 0 0 0 5467 470 7550 470 GR 465 1000 460 1110 457 1190 456 1280 455 1340 GR 455 1480 454 1590 453 1740 452 1860 451 1950 GR 450 2110 449 2820 449 2850 450 3280 450 3300 GR 450 3350 450 3410 451 3440 451 3540 451 3630 GR 451 4140 450.4 4190 451 4240 451 4380 450.6 4900 Existing Condition HEC -2 Model - Page 3 GR 451 5280 451 5380 451.42 5468.04 434.68 GR 452 5694.28 454 5820 454 5940 455 GR 454 6390 455 6410 455 6510 450 GR 440. 6640 433.3 6660 440 6680 450 GR 453 7070 454 7239 454 7240 450 GR 460 7470 470 7550 QT 5 7870 13730 19957 22468 36200 NH 5 .055 5260 .035 5510 .055 6340 NH 12560 Approximate Location of MacArthur Crossing - -Not included in this hydraulic model. 24400 -32250 INCLUDE CORRECTIONS & ADDITIONS FROM LAKE PARK ADDITION X1 24400 43 5260 6940 130 230 550 X3 5260 470 6940 470 GR 465 1000 460 1040 457.5 1090 459.5 GR 452 1240 457 1270 452 1340 450.5 GR 450 1940 449 2200 450 2790 450 GR 452 3870 451 4090 451 5000 452 GR 459.2 5260 452.3 5280 452 5310 433.5 GR 451.5 5510 453 5600 456.5 5950 453 GR 431.5 6640 452 6820 456 6940 457.8 GR 459.9 7670 458 9020 457.5 9240 458 GR 457 11240 457.5 12240 458 12560 NC .055 .055 .035 .1 .3 NH 5. .055 4188.16 .035 4424.38 .055 5060. NH 6690. * * * * * * * * ** KH- PARCHE MODEL COORDINATION 24700 - 39440 * * * * * * * * * * ** CROSS SECTION 24700 IS FROM THE KIMLEY -HORN MODEL. * * * ** SECTION "A" * * * ** X1 24700. 53. 5060. 5200. 610. 80. 350. X3 0 0 0 4187 470 5200 470 GR 465. 1000. 462. 1120. 462. 1140. 460. GR 457. 1410. 455. 1550. 454. 1650. 453. GR 451. 2180. 450. 2260. 451. 2630. 451. GR 452. 3180. 452. 3340. 452. 3530. 453. GR 453. 4110. 453. 4188.16 435.04 4260. 435.04 GR 454. 4450. 455. 4480. 455. 4510. 454. GR 455. 4850. 451. 5000. 451. 5060. 440. GR 440. 5170. 456. 5200. 456.3 5260. 456.6 GR 457. 5630. 458.4 5800. 459. 5900. 459.4 1 ' 17DEC98 17:16:06 5535 434.68 5625 5970 455 6310 6610 450 6620 6700 454 7000 7280 455 7350 .035 6940 .055 1140 452 1200 1540 450 1700 3250 451 3340 5220 459.5 5240 5365 433.5 5445 6340 446 6490 7120 459 7430 9440 458.5 9940 035 5200. .055 1230. 460. 1300. 1870. 452. 2080. 2910, 451. 2980. 3800. 453. 4000. 4350. 453.63 4424.38 4780. 454. 4800. 5140. 433.9 5155. 5300. 456.9 5400. 5970. 459.7 6050. PAGE 4 GR 459.9 6140. 459. 6360. 458.5 6410. 458.3 6480 GR 459.2 6580. 460. 6670. 462. 6690. NC .055 .065 .035 .1 .3 Existing Condition HEC -2 Model - Page 4 458.7 6500. 560 FROM KIMLEY -HORN MODEL. CHANNEL DISTANCE REVISED. X1 25530 90 2495.2 2742.67 700 X3 0 0 0 2494 470 GR 469.5 500 460.5 600 455.6 GR 449.9 1000 451.1 1100 450.6 GR 451 1500 451.4 1600 451.6 GR 453.1 2000 453.4 2100 454.2 GR 455.33 2495.2 436.63 2570 436.63 GR 454.8 2742.67 453.5 2780 454.0 GR 455.0 2880 454.7 2905 454.7 GR 470.0 3020 456.5 3020 456.5 GR 456.8 3090 456.8 3100 470.0 GR 456.9 3170 470 3170 470 GR 470 3250 470 3315 457.9 GR 470 3385 457.8 3385 457.8 GR 458.1 3455 458.1 3465 470 GR 457.2 3540 470 3540 470 GR 455.9 3650 456.9 3680 470 GR 457.6 3765 470 3765 470 GR 470 3840 470 3905 458.4 GR 470 3980 458.7 3980 458.7 X1 25770 70 2495.2 2780 240 X3 0 0 0 2494 470 GR 469.5 500 460.5 600 455.6 GR 449.9 1000 451.1 1100 450.6 GR 451 1500 451.4 1600 451.6 GR 453.1 2000 453.4 2100 454.2 GR 455.33 2495.2 436.73 2570 436.73 GR 456.0 2780 456.8 2845 470.0 GR 456.8 2940 470.0 2940 470.0 GR 470.0 3010 470.0 3060 456.8 GR 470.0 3145 457.2 3145 457.6 GR 457.6 3210 457.8 3230 470.0 GR 457.8 3300 470.0 3300 470.0 GR 470.0 3370 470.0 3420 457.7 GR 470.0 3490 457.3 3490 457.1 GR 457.1 3540 456.0 3555 456.0 NH 5 .055 2619.58 .035 2818.65 NH 5200 .055 * * * ** SECTION "B" * * * ** FROM KIMLEY -HORN MODEL. -- Normal Pool Elev. set =445.5 1 17DEC98 17:16:06 560 700 2742.67 470 700 452.9 800 450.4 900 1200 451.3 1300 450.8 1400 1700 451.5 1800 452.7 1900 2200 454.3 2300 455 2400 2627.2 434.5 2630 434.40 2670 2820 470.0 2820 470.0 2880 2935 455.3 2965 470.0 2965 3030 470.0 3030 470.0 3090 3100 470.0 3160 456.8 3160 3240 457.8 3240 457.8 3250 3315 457.9 3325 470 3325 3395 470 3395 470 3455 3465 470 3525 457.2 3525 3590 457 3590 455.9 3620 3680 470 3750 457.6 3750 3825 458 3825 458 3840 3905 458.4 3920 470 3920 4000 470 4000 470 4600 240 240 2780 470 700 452.9 800 450.4 900 1200 451.3 1300 450.8 1400 1700 451.5 1800 452.7 1900 2200 454.3 2300 455 2400 2650 434.6 2660 434.60 2710 2845 470.0 2920 456.8 2920 2990 456.8 2990 456.8 3010 3060 457.2 3095 470.0 3095 3165 470.0 3165 470.0 3210 3230 470.0 3280 457.8 3280 3350 457.8 3350 457.7 3370 3420 457.3 3440 470.0 3440 3510 470.0 3510 470.0 3540 3590 459.6 3600 470.0 4360 .055 2900 .035 3100 .055 PAGE 5 X1 26830 42 2619.58 3100 1030 960 1050 Existing Condition HEC 2 Model - Page 5 X3 0 0 0 2619.58 470 5200 470.0 GR 464.9 550 461.9 600 459.1 700 455.9 GR 451.7 1000 451.3 1100 451.2 1200 450.9 GR 452.8 1500 452.8 1600 452.4 1700 453.2 GR 453.3 2000 454.2 2100 454.4 2200 455.3 GR 455.9 2500 457.6 2600 457.35 2619.58 436.74 GR 456.91 2818.65 457.8 2900 451.6 3000 448.7 GR 436.5 3062 452 3100 454 3200 452.0 GR 452 3500 452.0 3650 452.0 3920 456.3 GR 461.9 5100 465.0 5200 1606.0 449.0 1747.0 AHH CROSS SECTION - 16 APRIL '92 450.0 2460.0 NH 6 NOTE: SECTIONS 268 +80 THRU 313 +35 FROM TOPOGRAPHY OF COPPELL COMMUNITY PARK .045 FLOWN FEBRUARY 1992. X1 27449 29.0 1014.0 NH 6 .05 1060.0 .04 NH 1634.0 .045 2761.0 1800 X1 26880 35.0 1012.0 1585.0 GR 461.5 1012.0 455.0 1038.0 GR 450.0 1241.0 455.0 1265.0 GR 458.0 1371.0 455.0 1407.0 GR 450.0 1521.0 455.0 1530.0 GR 455.4 1708.0 455.3 1767.0 GR 454.0 2133.0 454.1 2214.0 GR 454.2 2423.0 454.0 2481.0 NH 4.0 .0500 1038.0 .0400 X1 27165 24.0 985.0 1308.0 GR 461.5 985.0 455.0 1011.0 GR 450.0 1189.0 455.0 1218.0 GR 459.0 1340.0 458.0 1381.0 GR 450.0 1606.0 449.0 1747.0 GR 449.0 2435.0 450.0 2460.0 NH 6 .05 1054.0 .04 NH 1574.0 .045 2761.0 X1 27449 29.0 1014.0 1534.0 GR 460.3 1014.0 455.0 1035.0 GR 450.0 1199.0 455.0 1220.0 GR 455.0 1354.0 456.4 1368.0 GR 435.7 1485.0 450.0 1499.0 GR 451.0 1574.0 451.0 1645:0 GR 451.0 2472.0 452.0 2707.0 WATER MANAGEMENT STUDY SECTION 280 +80 1 449.8 2018.0 450.0 2182.0 455.0 17DEC98 17:16:06 2761.0 0 0 0 800 452.9 900 1300 451.1 1400 1800 453.1 1900 2300 456 2400 2702 436.74 2738 3005 436.3 3027 3230 452 3290 4000 460 4250 1241.0 .065 1444.0 .04 1521.0 .07 32 479 50 450.0 1060.0 436.76 1113.0 436.76 1188.0 457.0 1276.0 458.0 1286.0 458.7 1304.0 450.0 1444.0 436.2 1468.0 436.4 1488.0 457.5 1585.0 457.0 1634.0 456.0 1666.0 455.0 1820.0 454.0 1889.0 453.8 2084.0 454.0 2300.0 453.8 2327.0 454.0 2342.0 454.0 2634.0 455.0 2683.0 459.0 2761.0 1189.0 .0700 1553.0 .0450 2658.0 240 201 284 450.0 1038.0 436.90 1090.0 436.1 1137.0 458.0 1239.0 458.5 1270.0 459.0 1308.0 455.0 1403.0 451.5 1429.0 450.3 1553.0 448.3 1855.0 448.3 2063.0 449.0 2198.0 455.0 2607.0 459.0 2658.0 1413.0 .065 1427.0 .04 1499.0 .07 240 248 284 450.0 1054.0 437.04 1104.0 437.04 1149.0 456.0 1245.0 457.6 1280.0 455.0 1322.0 455.0 1413.0 450.0 1427.0 435.6 1470.0 455.0 1521.0 457.5 1534.0 455.0 1545.0 450.0 1843.0 449.8 2018.0 450.0 2182.0 455.0 2734.0 459.0 2761.0 PAGE 6 Existing Condition HEC -2 Model - Page 6 NH 6 .05 1109.0 .04 NH 1616.0 .045 2789.0 1160.0 437.18 NEW AHHA CROSS SECTION 1286.0 X1 27748 29.0 1071.0 1606.0 GR 460.0 1071.0 455.0 1091.0 GR 450.0 1253.0 455.0 1275.0 GR 459.2 1441.0 455.0 1499.0 GR 450.0 1583.0 455.0 1594.0 GR 450.0 1697.0 450.0 1859.0 GR 451.4 2700.0 452.0 2747.0 NH 6 .05 1081.0 .04 NH 1607.0 .045 2617.0 437.28 X1 27992 29.0 1041.0 1543.0 GR 460.0 1041.0 455.0 1061.0 GR 450.0 1224.0 455.0 1243.0 GR 459.0 1362.0 455.0 1375.0 GR 450.0 1482.0 455.0 1508.0 GR 455.0 1572.0 450.0 1607.0 GR 450.0 2527.0 451.0 2561.0 NH 8 .05 1061.0 .04 NH 1419.0 .045 1563.0 .035 X1 28168 24.0 1021.0 1419.0 GR 460.0 1021.0 455.0 1041.0 GR 450.0 1197.0 455.0 1214.0 GR 436.6 1293.0 438.9 1328.0 GR 455.0 1461.0 450.0 1525.0 GR 449.0 2410.0 450.0 2436.0 WATER MANAGEMENT STUDY SECTION 288 +70 NH 8 .05 1259.0 .04 NH 1605.0 .045 1769.0 .035 .045 NEW AHHA CROSS SECTION X1 28492 27.0 1215.0 1605.0 GR 460.0 1215.0 460.0 1216.0 GR 437.50 1351.0 450.0 1401.0 GR 457.0 1465.0 455.0 1492.0 GR 450.0 1572.0 455.0 1583.0 GR 447.1 1769.0 447.1 2352:0 GR 455.0 2576.0 460.0 2599.0 NH 8 .05 1321.0 .04 NH 1689.0 .045 1992.0 .035 X1 28720 29.0 1280.0 1689.0 GR 460.0 1280.0 460.0 1281.0 GR 437.62 1415.0 450.0 1466.0 1253.0 .065 1516.0 .04 1583.0 .07 324 262 299 450.0 1109.0 437.18 1160.0 437.18 1202.0 458.0 1286.0 458.0 1371.0 459.0 1426.0 450.0 1516.0 435.2 1538.0 435.3 1557.0 456.5 1606.0 455.0 1616.0 451.0 1642.0 450.2 1957.0 450.2 2096.0 451.0 2338.0 455.0 2765.0 459.0 2789.0 1224.0 .065 1391.0 .04 1482.0 .07 213 309 244 450.0 1081.0 437.28 1132.0 437.28 1173.0 459.0 1265.0 459.7 1302.0 459.7 1339.0 450.0 1391.0 436.0 1410.0 435.6 1452.0 458.0 1528.0 458.6 1543.0 458.0 1558.0 449.0 1624.0 448.5 1977.0 449.0 2229.0 455.0 2587.0 460.0 2617.0 1214.0 .065 1275.0 .04 1353.0 .07 1994.0 .045 2496.0 167 223 176 450.0 1061.0 437.36 1112.0 437.36 1146.0 459.2 1241.0 455.0 1265.0 450.0 1275.0 450.0 1353.0 455.0 1375.0 458.8 1419.0 447.1 1563.0 447.1 1994.0 448.0 2196.0 455.0 2468.0 460.0 2496.0 1401.0 .065 1503.0 .04 1572.0 .07 2352.0 .045 2599.0 406 307 324 455.0 1237.0 450.0 1259.0 437.50 1309.0 455.0 1416.0 457.0 1424.0 457.4 1439.0 450.0 1503.0 437.6 1518.0 436.3 1536.0 459.2 1605.0 455.0 1650.0 450.0 1714.0 448.0 2423.0 449.0 2512.0 450.0 2540.0 1537.0 .065 1576.0 .04 1643.0 .07 2363.0 .045 2543.0 173 338 228 455.0 1301.0 450.0 1321.0 437.62 1372.0 455.0 1483.0 458.0 1495.0 459.0 1509.0 Existing Condition HEC -2 Model - Page 7 GR 459.7 1537.0 459.0 1552.0 455.0 1565.0 450.0 1576.0 437.5 1597.0 GR 436.8 1609.0 450.0 1643.0 455.0 1657.0 458.6 1689.0 455.0 1711.0 1 17DEC98 17:16:06 PAGE 7 GR 450.0 1746.0 448.0 1824.0 447.1 1992.0 447.1 2363.0 448.0 2385.0 GR 449.0 2443.0 450.0 2473.0 455.0 2513.0 460.0 2543.0 NH 6 .05 1339.0 .04 1482.0 .065 1610.0 .04 1666.0 .075 NH 1699.0 .045 2703.0 X1 28890 39.0 1289.0 1696.0 153 194 170 X3 2526.0 460.0 GR 462.0 1289.0 460.0 1297.0 455.0 1317.0 450.0 1339.0 437.71 1388.0 GR 437.71 1433.0 450.0 1482.0 455.0 1499.0 459.0 1516.0 459.5 1539.0 GR 459.0 1564.0 456.0 1581.0 455.0 1596.0 450.0 1610.0 437.5 1633.0 GR 437.1 1637.0 450.0 1666.0 455.0 1677.0 460.0 1696.0 460.9 1699.0 GR 460.0 1709.0 455.0 1732.0 452.0 1743.0 451.0 1753.0 450.0 1830.0 GR 449.0 1971.0 448.5 2075.0 448.5 2178.0 449.0 2290.0 450.0 2429.0 GR 451.2 2459.0 449.0 2495.0 449.0 2526.0 456.5 2526.0 456.5 2555.0 GR 453.6 2555.0 453.6 2571.0 455.0 2629.0 460.0 2703.0 WATER MANAGEMENT STUDY SECTION 296 +10 NH 4 .05 1318.0 .04 1542.0 .07 1654.0 .045 2402.0 * * * ** SECTION "C" * * * ** NEW AHHA CROSS SECTION X1 29124 21.0 1264.0 1620.0 161 337 234 GR 462.0 1264.0 460.0 1272.0 455.0 1293.0 450.0 1318.0 437.83 1367.0 GR 437.83 1409.0 449.5 1456.0 437.4 1488.0 437.6 1512.0 450.0 1542.0 GR 455.0 1577.0 459.0 1620.0 459.0 1654.0 455.0 1673.0 453.0 1684.0 GR 452.0 1702.0 451.0 1895.0 450.0 2097.0 451.0 2348.0 455.0 2373.0 GR 460.0 2402.0 NH 8 .05 1219.0 .04 1410.0 .065 1529.0 .04 1597.0 .07 NH 1626.0 .045 2457.0 .075 2604.0 .045 2777.0 X1 29651 44.0 1168.0 1626.0 600 404 527 GR 462.0 1168.0 460.0 1176.0 455.0 1196.0 450.0 1219.0 438.06 1267.0 GR 438.06 1320.0 450.0 1368.0 455.0 1387.0 459.0 1410.0 459.0 1427.0 GR 458.0 1471.0 455.0 1497.0 450.0 1529.0 438.8 1550.0 438.9 1571.0 GR 450.0 1597.0 455.0 1605.0 457.0 1616.0 457.4 1626.0 457.0 1635.0 GR 455.0 1644.0 450.0 1681.0 449.0 1684.0 448.6 1737.0 449.0 1854.0 GR 449.0 2023.0 450.0 2182.0 455.0 2208.0 456.0 2218.0 458.0 2386.0 GR 457.0 2435.0 456.0 2457:0 455.0 2486.0 454.0 2494.0 454.0 2502.0 GR 457.0 2523.0 457.0 2558.0 455.0 2566.0 453.0 2573.0 453.0 2577.0 GR 455.0 2585.0 459.0 2604.0 459.0 2772.0 460.0 2777.0 NH 10 .05 1175.0 .04 1421.0 .065 1480.0 .04 1543.0 .07 NH 1654.0 .045 1891.0 .035 2089.0 .045 2291.0 .075 2582.0 .045 NH 2771.0 X1 29831 44 1147.0 1570.0 171 197 180 Existing Condition HEC -2 Model - Page 8 GR 462.0 1147.0 460.0 1155.0 455.0 1175.0 450.0 1197.0 438.14 1244.0 GR 438.14 1296.0 450.0 1343.0 455.0 1361.0 460.0 1377.0 461.0 1386.0 GR 460.0 1421.0 459.0 1444.0 455.0 1462.0 450.0 1480.0 439.3 1498.0 GR 439.3 1518.0 450.0 1543.0 455.0 1552.0 457.0 1557.0 458.0 1570.0 GR 459.8 1586.0 455.0 1607.0 455.0 1654.0 450.0 1691.0 449.0 1699.0 GR 448.8 1755.0 448.4 1891.0 448.4 2089.0 450.0 2100.0 455.0 2127.0 GR 458.0 2291.0 458.5 2371.0 458.0 2388.0 455.0 2396.0 452.0 2400.0 GR 452.0 2408.0 455.0 2415.0 459.0 2434.0 459.0 2476.0 458.0 2536.0 GR 457.3 2582.0 457.3 2725.0 458.0 2763.0 460.0 2771.0 1 17DEC98 17:16:06 PAGE 8 WATER MANAGEMENT STUDY SECTION 305 +70 NH 6 .05 1176.0 .04 1314.0 .065 1420.0 .04 1476.0 NH 1672.0 .045 2190.0 .07 NEW AHHA CROSS SECTION X1 30027 32 1128.0 1525.0 148 299 196 GR 462.0 1128.0 460.0 1136.0 455.0 1156.0 450.0 1176.0 438.23 1223.0 GR 438.23 1267.0 450.0 1314.0 455.0 1340.0 458.2 1377.0 455.0 1409.0 GR 450.0 1420.0 439.8 1434.0 439.8 1453.0 450.0 1476.0 455.0 1493.0 GR 460.0 1525.0 460.5 1548.0 460.0 1578.0 459.6 1619.0 459.6 1672.0 GR 459.0 1740.0 457.0 1758.0 456.0 1780.0 455.0 1790.0 450.0 1840.0 GR 449.0 1867.0 448.6 1998.0 449.0 2008.0 450.0 2026.0 455.0 2088.0 GR 459.0 2131.0 460.0 2190.0 NH 9 .05 1095.0 .04 1225.0 .065 1320.0 .04 1377.0 NH 1668.0 .045 1694.0 .07 1951.0 .045 1977.0 .07 2150.0 .07 X1 30384 46.0 1045.0 1447.0 371 410 357 GR 462.0 1045.0 460.0 1053.0 455.0 1073.0 450.0 1095.0 438.14 1142.0 GR 438.14 1178.0 450.0 1225.0 455.0 1246.0 459.0 1270.0 460.0 1287.0 GR 455.0 1307.0 450.0 1320.0 446.0 1328.0 446.0 1333.0 447.0 1371.0 GR 450.0 1377.0 455.0 1391.0 459.0 1413.0 460.0 1447.0 460.7 1481.0 GR 460.0 1504.0 460.0 1570.0 459.8 1640.0 459.0 1650.0 455.0 1658.0 GR 450.0 1668.0 445.0 1673.0 445.0 1689.0 450.0 1694.0 455.0 1697.0 GR 460.0 1716.0 460.0 1756.0 461.3 1788.0 461.0 1800.0 459.0 1815.0 GR 458.0 1888.0 455.0 1930.0 450.0 1951.0 445.0 1958.0 445.0 1967.0 GR 450.0 1977.0 455.0 1982.0 458.0 2004.0 458.0 2077.0 458.0 2096.0 GR 460.0 2150.0 WATER MANAGEMENT STUDY SECTION 312 +30 NH 7 .05 1063 .04 1187 .065 1247 .04 1301 .07 NH 1601 .045 1831 .07 2395 NEW AHHA CROSS SECTION 30604 -32725 ARE SECTIONS COMMON TO DENTON CRK. & COTTONWOOD BR. -AHH X1 30604 49 1014 1350 269 319 220 GR 461.0 1014 460.0 1022 455.0 1042 450.0 1063 438.55 1109 Existing Condition HEC -2 Model - Page 9 GR 438.55 1141 450.0 1185 GR 450.0 1244 449.0 1241 GR 446.0 1295 447.0 1291 GR 461.0 1350 461.0 1454 GR 446.0 1473 446.0 148E GR 461.0 1582 461.0 1601 GR 452.0 1751 455.0 179E GR 450.0 1876 447.0 188E GR 456.0 2048 458.0 2191 NH 5.0 .0500 1093.0 .040C NH 2504.0 354 1 1076.0 450.0 1093.0 438.55 455.0 17DEC98 17:16:06 1252.0 462.0 X1 30958 31 1048.0 1285.0 GR 461.0 1048.0 460.0 1056.0 GR 438.55 1142.0 450.0 1183.0 GR 465.3 1298.0 450.0 1346.0 GR 448.0 1537.0 449.0 1600.0 GR 455.0 2024.0 458.0 2058.0 GR 448.0 2173.0 450.0 2177.0 GR 461.0 2504.0 1193.0 461.0 NH 5.0 .0500 1094.0 .0400 NH 2193.0 454.0 1849.0 455.0 X1 31335 30 1037.0 1204.0 GR 461.0 1037.0 460.0 1045.0 GR 438.55 1140.0 450.0 1176.0 GR 461.0 1228.0 460.0 1231.0 GR 452.0 1380.0 451.0 1451.0 GR 456.0 2059.0 457.6 2090.0 GR 450.0 2124.0 456.0 2141.0 END AHH CROSS SECTION NC .055 .055 .035 .5 FROM KIMLEY -HORN MODEL. X1 32150 40 3400 3525 X3 3040. ' GR 470 1000 461 1600 GR 457 2200 457 2220 GR 457 2650 456.5 2680 GR 461.5 3300 460.5 3400 GR 437 3475 437 3489 GR 458 3920 459 3980 GR 452 4350 453.5 4380 455.0 1211 455.8 1220 455.0 448.0 1273 447.0 1276 446.0 450.0 1301 455.0 1316 460.0 460.0 1457 455.0 1464 450.0 450.0 1496 455.0 1506 460.0 460.0 1618 455.0 1653 452.0 458.0 1831 458.0 1863 455.0 447.0 1895 450.0 1898 455.0 459.0 2247 461.0 2395 461 1183.0 .0700 1346.0 .0450 2024.0 303 302 354 455.0 1076.0 450.0 1093.0 438.55 455.0 1192.0 460.0 1252.0 462.0 447.0 1362.0 446.2 1407.0 447.0 450.0 1746.0 452.0 1896.0 453.0 455.0 2101.0 455.0 2146.0 448.0 456.0 2196.0 457.0 2232.0 459.0 1176.0 .0700 1283.0 .0450 2059.0 377 344 377 455.0 1065.0 450.0 1094.0 438.55 455.0 1184.0 460.0 1193.0 461.0 458.0 1250.0 458.0 1283.0 455.0 451.0 1514.0 454.0 1849.0 455.0 455.0 2097.0 449.0 2103.0 449.0 457.0 2168.0 460.0 2180.0 461.0 7 160 180 170 470. 6180. 470. 461 1800 458 2000 459 459 2320 456.5 2620 455 459 2900 459 3100 460 437 3427 437 3440 437 447 3505 460 3525 461.5 458 4240 456 4280 456 457.5 4400 458 4520 461 Existing Condition HEC -2 Model - Page 10 1230 1282 1340 1469 1527 1730 1867 1917 0700 PAGE 9 1134.0 1285.0 1469.0 1995.0 2157.0 2380.0 .0700 1130.0 1204.0 1310.0 2023.0 2117.0 2193.0 2100 2640 3200 3470 3650 4350 4720 GR 461 5110 462 5200 462 5460 464 5800 470 6180 NC 0.055 0.055 0.025 0.5 0.7 0 0. 0. 0. 0. NH 5. .055 3390.5 .025 3539.5 .055 4366. .02 4411. .05 NH 5734. DENTON TAP ROAD BRIDGES - FROM KIMLEY -HORN MODEL. W/n VALUE CHANGES -AHH X1 32200. 62. 3390.5 3539.5 50. 50. 50. 0. 0. 0. X3 3050. 470. 5734. 470. BT -9. 3380. 465. 463. 3552. 465. 463. 3600. 466. 466 BT 3740. 464. 464. 3880. 463.6 463.6 3960. 464. 464 BT 4190. 466. 466 4340. 466.9 465.4 4411. 466.8 465.4 GR 472. 900. 467. 1310. 462. 1700. 460.5 2000. 461.5 2200. GR 456.5 2201. 456.5 2221. 461.5 2222. 459.5 2430. 459.5 2520. GR 460.5 2610. 456.5 2611. 460.5 2635. 461.0 3000. 462. 3280. GR 465. 3380. 460. 3381. 461.5 3390.5 450. 3425. 446.5 3432. 1 17DEC98 17:16:06 PAGE 10 GR 463.0 3432.01 463.0 3434.99 445. 3435. 435.0 3455. 435. 3475. GR 445. 3495. 463. 3495.01 463. 3497.99 446.5 3498. 450.0 3505. GR 461.5 3539.5 460. 3550. 465. 3552. 466. 3600. 464. 3740. GR 463.6 3880. 464. 3960. 466. 4190. 466.9 4340. 465.4 4340. GR 463.5 4340. 452.8 4365. 465.4 4365. 465.4 4366. 450.7 4366, GR 449.9 4380. 451.5 4389. 455.2 4396. 465.4 4396. 465.4 4397. GR 455.2 4397. 463.5 4411. 465.4 4411. 466.9 4411. 466.8 4434. GR 465.7 4534. 465.1 4634. 464. 4734. 463.2 4834. 463.5 4934. GR 464.4 5014. 466. 5734. X1 32230. 0. 0. 0. 50. 50. 50. 0. 0. 0. X2 0. 0. 0. 1 X3 3050. 470. 6180. 470. NH 6. 0.050 1323. 0.055 1740. 0.060 2110. .045 2325. 0.065 NH 3415. 0.050 3615. X3 FROM 32305 -34260 REFLECT INEFFECTIVE FLOW AREAS IN ANDREW BROWN PK. BEGIN WITH MODEL OF DENTON CREEK UPSTREAM OF DENTON TAP ROAD BASED ON BROCKETTE DAVIS AND DRAKE MODEL FOR MAGNOLIA PARK MODIFIED FOR PARK FILL AND FOR FILL FOR MAGNOLIA PARK IN THE LEFT OVERBANK AT SECTION 32725. RIGHT ENCROACHMENT STATION MODIFIED FROM BROCKETTE MODEL TO MOVE FLOODWAY LIMIT OUT OF COTTONWOOD BRANCH CHANNEL. X1 32305. 49. 2110. 2325. 55. 55. 55. Existing Condition HEC -2 Model - Page II GR 470. 50. 470. 50. 470. 50. 470. 50. 470. 50. GR 467. 50. 466. 135. 465. 220. 465. 1323. 461. 1335. GR 461. 1740. 461. 1740. 461. 1740. 462. 1825. 463. 1890, GR 464. 1975. 465. 2045. 465. 2110. 464. 2125. 463. 2140. GR 460. 2160. 455. 2175. 450. 2204. 445. 2218. 440. 2225. GR 437.7 2232. 438. 2239. 440. 2245. 445. 2253. 450. 2263. GR 455. 2281. 470. 2325. 470. 3050. 460. 3140. 459. 3180. GR 458. 3200. 457. 3218. 455. 3265. 452. 3283. 451. 3289. GR 451. 3292. 452. 3308. 455. 3329. 459. 3350. 460. 3360. GR 461. 3369. 462. 3400. 462. 3415. 464. 3615. NC .3 .5 NH 6. 0.050 1273. 0.055 1568. 0.060 1940. 0.045 2150. 0.055 NH 3670. 0.050 3695.5 CROSS SECTION 32725 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL MODIFIED FOR LINCOLN COPPELL FILL IN LEFT OVERBANK AND FOR GRADING IN CITY PARK 1 17DEC98 17:16:06 RIGHT ENCROACHMENT ADJUSTED FROM BROCKETTE MODEL TO INCLUDE COTTONWOOD BRANCH CHANNEL IN THE FLOODWAY. X1 32725. 42. 1940. 2150. 380. 520. 420. GR 470. 0.0 470. 0.0 470. 0.0 470. 0.0 470. 0.0 GR 465. 0.0 464. 90. 465. 180. 465. 1273. 461. 1285. GR 461. 1568. 453. 1592. 453. 1842. 464. 1895. 464. 1895. GR 463. 1940. 460. 1960. 455. 1981. 450. 2002. 445. 2018. GR 440. 2025. 439. 2030. 438.2 2040. 439. 2050. 440. 2053. GR 445. 2070. 450. 2080. 455. 2090. 460. 2124. 461. 2150. GR 461. 2165. 470. 2300. 470. 2700. 470. 2805. 470. 2885. GR 459. 3350. 455. 3605. 452. 3615. 455. 3628. 459. 3632. GR 459. 3670. 467.5 3695.5 QT 5 5645. 10168. 14753. 16681. 36200. NH 5. 0.050 2305.9 0.055 2420.6 0.060 2752. 0.045 2960. 0.055 NH 4435. CROSS SECTION 33145 FROM BROCKETTE; DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. BEGIN SEPARATE MODELLING OF DENTON CRK. & COTTONWOOD BR. - -AHH X1 33145. 42. 2390. 2960. 385. 290. 420. X3 3250. GR 470. 825. 470. 825. 470. 825. 470. 825. 465. 825. GR 465, 2305.9 460.33 2315. 460.55 2350.1 460.64 2390. 453. 2420.6 GR 452. 2485. 451.75 2515. 452. 2545. 453. 2620. 463. 2660. Existing Condition HEC -2 Model - Page 12 PAGE 11 GR 463. 2752. 462. 2779. 461. 2789. 460. 2795. 455. 2810. GR 450. 2825. 445. 2835. 440. 2849. 439. 2852. 438.4 2862. GR 439. 2870. 440. 2878. 445. 2889. 450. 2898. 455. 2903. GR 460. 2930. 461. 2938. 462. 2951. 463. 2960. 463. 2969. GR 462. 3005. 461. 3039. 461. 3750, 460. 3800. 460. 4300. GR 463.6 4310.8 469. 4435. NH 4. 0.055 1310.0 0.060 1360. 0.045 1603. 0.055 3160. CROSS SECTION 33470 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. ELIMINATED GROUND POINTS AT SECTION 33470. SOUTH OF 2770. TO BETTER MODEL EXPANDING FLOW FROM UPSTREAM REACH AT HIGH DISCHARGES. X1 33470. 38. 1135. 1603. 315, 260. 325. X3 2030. GR 470. 0.0 465. 0.0 465. 958.00 465.00 959.00 465. 960.00 GR 459.72 976.00 460.0 1010. 460.2 1135. 453. 1220. 462. 1310. GR 462. 1360. 461. 1382. 460. 1391. 455. 1419. 450. 1432. GR 445. 1432. 440. 1460. 439. 1465. 439.5 1475. 439. 1485. GR 440. 1491. 445. 1510. 450. 1520. 455. 1534. 460. 1565. GR 461. 1580. 462. 1592. 463. 1603. 460. 1609. 460. 1880. GR 461. 1930. 461. 2040. 461. 2198. 461. 2375. 460.1 2550. GR 463.8 2561. 464.8 2990. 465.2 3160. 1 17DEC98 17:16:06 NH 4. 0.055 1201. 0.060 1280. 0.045 1392. 0.055 2230. CROSS SECTION 34260 FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL. MODIFIED IN RIGHT OVERBANK AREAS FROM PARKS OF COPPELL TOPOGRAPHY. ADJUST FLOODWAY LIMIT ON RIGHT BANK FROM LIMIT USED IN BROCKETTE MODEL TO LOCATE FLOODWAY LIMIT AT 100 -YEAR FLOOD LIMITS. ELIMINATED GROUND POINTS AT SECTION 34260 SOUTH OF 1970. TO BETTER MODEL EXPANDING FLOW FROM UPSTREAM REACH AT HIGH DISCHARGES. X1 34260. 34. 868. 1520. 830. 250. 790. X3 1660. GR 470. 0.0 465. 0.0 465. 853. 461.2 868. 453. 900.8 GR 452. 1000.0 451.5 1037.5 452. 1075. 452. 1075. 452. 1075. GR 453. 1166.4 461.64 1201.0 461.0 1280. 460. 1291. 455. 1304. GR 450. 1319. 445. 1328. 440. 1337. 439. 1340. 438.8 1345. GR 439. 1350. 440. 1357. 445. 1363. 450. 1372. 455. 1381. Existing Condition HEC -2 Model - Page 13 PAGE 12 GR 460. 1392. 461. 1415. 462. 1445. 463. 1472. 464. 1520. GR 461. 1620. 461. 1800. 464.5 1810.5 465.5 2230. NH 6. 0.050 648. 0.055 1005. 0.060 1310. 0.045 1520. 0.055 NH 1671. 0.050 1760. CROSS SECTION 34850. FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL. NOT MODIFIED SINCE EFFECTIVE FLOW LIMITS PREVENTS FLOWS FROM ENTERING COTTONWOOD BRANCH AREA AT FAR RIGHT END OF THE SECTION EVEN AT HIGH DISCHARGES. ADJUST FLOODWAY LIMIT ON RIGHT BANK FROM LIMIT USED IN BROCKETTE MODEL TO LOCATE FLOODWAY LIMIT AT 100 -YEAR FLOOD LIMITS. X3 REMOVED TO ALLOW FLOW OUT OF CHANNEL -AHH X1 34850. 33. 1310. 1520. 520. 640. 590. 0.0 0.0 0.0 GR 465. 0.0 465. 648. 461. 660. 461. 660. 461. 1005. GR 462.0 1038. 463. 1210. 464. 1270. 464.3 1310. 460, 1338. GR 455. 1341. 450. 1380. 445. 1388. 440. 1390. 439.3 1394. GR 440. 1410. 445. 1428. 450. 1435. 455. 1442. 460. 1465. GR 465. 1520. 466. 1532. 467. 1550. 468. 1570. 469. 1590. GR 470. 1610. 471. 1630. 472. 1648. 473. 1671. 474. 1691. GR 475. 1710. 476. 1740. 477.79 1760. NH 5. .050 1355. .055 2005. .060 2310. .045 2520. .055 NH 2610. CROSS SECTION 34950 FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL MODIFIED TO ELIMINATE FLOW AREAS IN COTTONWOOD BRANCH AT SOUTH END OF THE CROSS SECTION & INEFFECTIVE FLOW AT NORTH END. X1 34950. 31. 2310. 2520. 110. 90. 100. X3 1494. GR 470. 620. 465. 620. 464. 740. 463. 760. 463. 930. GR 463.48 1000. 463. 1062. 462. 1190. 461. 1355. 461. 2005. GR 462. 2038. 463. 2210. 464. 2270. 464.3 2310. 460. 2338. GR 455. 2341. 450. 2380. 445. 2388. 440. 2390. 439.3 2394. 1 17DEC98 17:16:06 GR 440. 2410. 445. 2428. 450. 2435. 455. 2442. 460. 2465. GR 465. 2520. 466. 2532. 467. 2550. 468. 2570. 469. 2590. GR 470. 2610. NC .055 .055 .045 .1 .3 0. 0. 0. 0. 0. NH 6. 0.060 1200. 0.050 2155. 0.060 2900. 0.045 3060. 0.060 NH 3960. 0.050 4070. 0. 0. 0. 0. 0. 0. 0. * * * ** SECTION "D" * * * ** CROSS SECTION 36970 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. X1 36970. 31. 2900. 3060. 2020. 2020. 2020. Existing Condition HEC -2 Model - Page 14 PAGE 13 GR 483. 1000. 477.5 1050. 475. 1200. 475. 1430. 473.8 1510. GR 473. 1810. 474. 2155. 469. 2360. 466. 2560. 466. 2850. GR 465. 2900. 458. 2930. 453.5 2930. 444. 2930. 440. 2937. GR 442.7 2970. 450.6 2975. 454. 2985. 456. 2990. 465. 3060. GR 466.5 3140. 465. 3280. 462. 3400. 462. 3430. 464.5 3570. GR 463. 3670. 459. 3740. 459. 3870. 461.5 3960. 463.5 3990. GR 473. 4070. 0. 0. 0. 0. 0. 0. 0. 0. NH 5. .05 1540. .06 2100. .045 2270. .055 2755. .05 NH 3070. X1 38200. 49. 2100. 2270. 1150. 950. 1230. GR 473.2 1000. 472. 1250. 470. 1360. 468. 1400. 468. 1450. GR 468. 1540. 466. 1570. 464. 1600. 462. 1650. 461. 1760. GR 462. 1930. 464. 2050. 466. 2070. 467.4 2100. 466. 2120. GR 464. 2125. 462. 2135. 460, 2142. 450. 2160. 444. 2170. GR 441. 2185. 444. 2200. 450. 2215. 460. 2255. 462. 2270. GR 462. 2295. 462. 2340. 464. 2390. 464. 2440. 462. 2460. GR 460. 2480. 458. 2500. 456. 2515. 454. 2530. 452. 2535. GR 451. 2560. 452. 2580. 454. 2600. 456. 2620. 458. 2670. GR 460. 2720. 462. 2755. 464. 2780. 466. 2800. 468. 2820. GR 470. 2840. 472. 2860. 474. 2950. 474.4 3070. NH 5. .05 1275. .055 1540. .045 1675. .055 2175. .05 NH 2310. X1 39290. 30. 1525. 1675. 980. 1110. 1090. GR 474. 1000. 472. 1030. 470. 1070. 468. 1115. 466. 1200. GR 464. 1275. 462. 1320. 460.3 1345. 462. 1400. 464. 1450. GR 464. 1525. 462. 1540. 460. 1550. 450. 1560. 445. 1565, GR 441.88 1580. 445. 1600. 450. 1615. 460. 1675. 460. 1710. GR 458. 1750. 458. 1950. 460. 2000. 462. 2150. 464. 2175. GR 466. 2180. 468. 2190. 470. 2200. 472. 2240. 474. 2310. NH 6. 0.060 1050. 0.060 2000. 0.055 4040. 0.045 4150. 0.060 NH 4710. 0.055 6040. 0. 0. 0. 0. 0. 0. 0. CROSS SECTION 39440 FROM FEMA MODEL. 1 17DEC98 17:16:06 UPSTREAM OF PARKS OF COPPELL. * * * * * * * * ** END OF KH- PARCHE COORDINATION MODEL * * * * * * * * * * * * * * * * ** X1 39440. 34. 4040. 4150. 150. 280. 150. GR 502. 1000. 491.6 1050. 490. 1160. 487. 1330. 487. 1530. GR 484. 1800. 483. 2000. 480. 2100. 480. 2200. 477. 2480. GR 477. 3450. 477.3 3610. 471.5 3730. 465. 3790. 463. 3900. GR 464. 4000. 468. 4025. 464. 4040. 444. 4090. 442. 4110. GR 462.5 4150. 468.5 4210. 462.8 4400. 464. 4600. 466.5 4710. GR 481.5 4880. 483. 4970. 484. 5080. 482. 5380. 482. 5460. GR 485. 5600. 488. 5730. 493.5 5830. 500. 6040. 0. 0. Existing Condition HEC -2 Model - Page 15 PAGE 14 NH 6 .05 1090 .05 2380 .055 3760 .045 4670 .05 NH 4950 .055 6200 FEMA CROSS SECTION X1 39490 33 4030 4310 50 50 50 GR 502 1000 491.5 1090 479 2380 478.5 2480 478 2670 GR 477.5 3060 478.2 3175 477 3320 477 3470 478 3760 GR 465 3782 462.7 3885 462.3 3895 463 3914 464 3965 GR 462.8 3985 467.5 4030 463 4045 454.3 4155 442 4183 GR 442 4193 443.5 4217 462.5 4257 468.5 4310 478.5 4505 GR 464 4635 478.2 4670 478.5 4950 483.5 5380 483.5 5520 GR 495 5940 499 6120 500 6200 NH 6 .05 1050 .055 2000 .055 4040 .045 4150 .05 NH 4710 .055 6040 FEMA CROSS SECTION X1 39540 34 4040 4150 50 50 50 GR 502 1000 491.6 1050 490 1160 487 1330 487 1530 GR 484 1800 483 2000 480 2100 480 2200 477 2480 GR 477 3450 477.3 3610 471.5 3730 465 3790 463 3900 GR 464 4000 468 4025 464 4040 444 4090 442 4110 GR 462.5 4150 468.5 4210 462.8 4400 464 4600 466.5 4710 GR 481.5 4880 483 4970 484 5080 482 5380 482 5460 GR 485 5600 488 5730 493.5 5830 500 6040 NH 6 .06 1200 .055 3750 .06 4730 .045 4815 .045 NH 5410 .04 6200 FEMA CROSS SECTION X1 40650 32 4730 4815 1400 800 1110 GR 501 1000 497 1200 491.5 1800 489 2400 490.2 2700 GR 488.5 2950 489 3240 487.8 3750 480 4050 473 4180 GR 468.2 4320 465 4500 465 4600 465.5 4630 464.8 4730 GR 451.2 4770 440 4780 440 4800 449 4810 457.8 4815 GR 463 4860 467 4870 464 5080 465 5120 471 5170 GR 482.5 5410 484.2 5550 483.8 5790 486.8 5950 495.5 6130 GR 497.8 6150 499 6200 1 17DEC98 17:16:06 PAGE 15 QT 5 2994. 5761. 9182. 10837. 36200. NH 6 .06 1540 .055 2330 .055 2370 .045 2445 .06 NH 3350 .06 5200 Existing Condition HEC -2 Model - Page 16 NH 6 .05 1300 .055 3400 .05 5570 NH FEMA CROSS SECTION 6230 479 1850 476 FEMA CROSS SECTION 472 3400 X1 48000 32 2370 2445 5700 2900 7350 GR 510 1000 498 GR 503 1300 490 1450 482.2 1490 482.5 1540 474 1590 GR 465.6 1710 464.8 1740 464.5 1880 467.2 1890 469 2330 GR 459 2355 457 2370 445.6 2375 446 2385 446.8 2395 GR 448.5 2405 454 2410 462.3 2430 466.5 2445 471 2500 GR 465.5 2830 467.8 3060 467.8 3170 475 3240 474.5 3350 GR 487.8 3380 489 3570 491 3980 491 4330 488.5 4740 GR 498.4 5020 501.5 5200 QT 5. 3166. 5796. 9885. 11721. 36200. NH 6 .05 1400 .05 2930 .055 4160 .045 4515 .058 NH 4585 .06 5420 FEMA CROSS SECTION X1 51350 30 4160 4515 3600 3700 3350 GR 509 1000 504 1100 492.6 1400 490.5 1600 487 1850 GR 479 2030 474.5 2230 472.8 2470 472.5 2690 474 2930 GR 471.3 3140 469.6 3400 468.7 3600 468.5 3800 468.5 3870 GR 470.5 4000 470.5 4100 470.3 4160 446.5 4200 447.5 4238 GR 470.3 4280 471 4315 469.4 4415 470.2 4515 483.8 4585 GR 482 4615 484 4675 498 5215 500 5330 505.5 5420 NH 6 .05 1300 .055 3400 .05 5570 NH 6120 .055 6230 479 1850 476 FEMA CROSS SECTION 472 3400 467 3450 X1 53350 34 5570 5670 1650 1750 GR 510 1000 498 1200 492 1300 GR 474 2100 472.5 2500 474 2750 GR 469 3510 472.5 3700 472.5 3740 GR 475 5170 470 5300 473 5360 GR 450 5580 448 5590 450 5600 GR 460 5650 467 5670 473 5700 GR 478 6100 481.4 6120 490 6170 QT 5. 2700. 6584. 9918. 12101. 36200. NH 6 .04 1300 .055 1900 .06 NH 4480 .055 4540 FEMA CROSS SECTION 1 17DEC98 17:16:06 .045 5670 .058 2000 479 1850 476 1900 472 3400 467 3450 470 4000 472 4700 472 5470 456 5570 450 5620 451 5630 472 5900 473 6000 510 6230 4250 .045 4340 .06 PAGE 16 Al 55590 23 4250 4340 2000 2200 2240 GR 501.5 1000 493 1100 487 1300 484 1500 Existing Condition HEC -2 Model - Page 17 486 1550 GR 489 1900 480 2000 475 2500 475 4390 GR 472 3600 472 3900 473 4000 476 449 GR 452.4 4300 452.4 4325 472 4340 474 GR 473 4440 483 4480 502 4540 NH 6 .05 1850 .052 4120 .055 4335 NH 4630 .06 4800 FEMA CROSS SECTION X1 56940 33 4335 4415 1250 1250 1350 GR 502 1000 499.4 1070 494.5 1720 490.8 GR 474.5 2330 474.6 2480 472.4 2820 475.6 GR 472 3300 475 3640 475 3760 473.4 GR 469 3920 474 3930 475.8 3980 475.3 GR 462 4335 454.5 4340 451 4345 449.2 GR 452 4370 467 4400 474 4415 473 GR 476 4630 500 4760 502 4800 1 17DEC98 17:16:06 T1 COPPELL CITY -WIDE STORM WATER MANAGEMENT STUDY T2 EXISTING CONDITIONS WITH FULLY DEVELOPED 10 YEAR DISCHARGE T3 DENTON CREEK -- DENCR- DW.DAT -- A.H. HALFF ASSOC. J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL 0 3 0 0 .00046 0 0 0 450.70 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM 2 0 -1 1 17DEC98 17:16:06 T1 COPPELL CITY -WIDE STORM WATER MANAGEMENT STUDY T2 EXISTING CONDITIONS WITH FULLY DEVELOPED 25 YEAR DISCHARGE T3 DENTON CREEK -- DENCR- DW.DAT -- A.H. HALFF ASSOC. J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL 0 4 0 0 .00046 0 0 0 450.70 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM 3 0 -1 1 2600 471 3000 4240 470 4250 4390 472.5 4410 .045 4415 .058 1850 477.8 2090 2980 473.6 3120 3850 469 3880 4120 472 4290 4355 449 4360 4440 473.8 4445 PAGE 17 FQ ITRACE PAGE 18 FQ ITRACE Existing Condition HEC -2 Model - Page 18 17DEC98 17:16:06 T1 COPPELL CITY -WIDE STORM WATER MANAGEMENT STUDY T2 EXISTING CONDITIONS WITH FULLY DEVELOPED 100 YEAR DISCHARGE T3 DENTON CREEK -- DENCR- DW.DAT -- A.H. HALFF ASSOC. J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q 0 5 0 0 .00046 0 0 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW 15 0 -1 1 17DEC98 17:16:06 ++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ HEC -2 WATER SURFACE PROFILES Version 4.6.2; May 1991 ++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ WSEL FQ 0 450.70 CHNIM ITRACE PAGE 19 PAGE 20 THIS RUN EXECUTED 17DEC98 17:16:07 NOTE- ASTERISK ( *) AT LEFT OF CROSS - SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST DENTON CREEK -- DENCR SUMMARY PRINTOUT SECNO Q CWSEL VCH VOL TWA 18440.000 7432.00 450.19 2.46 .00 .00 18440.000 12847.00 451.10 2.61' .00 .00 18440.000 20244.00 452.06 2.80 .00 .00 18440.000 23083.00 452.38 2.86 .00 .00 * 19330.000 7432.00 450.27 .98 118.73 38.79 * 19330.000 12847.00 451.20 1.42 156.98 44.10 * 19330.000 20244.00 452.19 1.86 201.84 48.18 * 19330.000 23083.00 452.51 2.01 217.56 49.25 Existing Condition HEC -2 Model - Page 19 19930.000 7432.00 450.27 1.30 254.80 70.92 19930.000 12847.00 451.21 2.00 324.36 78.99 * 19930.000 20244.00 452.19 2.79 404.83 85.93 * 19930.000 23083.00 452.51 3.06 433.07 88.36 21560.000 7432.00 450.31 1.71 438.55 97.47 21560.000 12847.00 451.29 2.76 534.48 108.62 21560.000 20244.00 452.33 4.06 646.43 121.30 21560.000 23083.00 452.67 4.51 686.81 126.72 22370.000 7432.00 450.35 1.92 514.02 103.08 22370.000 12847.00 451.39 3.07 615.70 114.51 22370.000 20244.00 452.51 4.46 734.65 129.35 22370.000 23083.00 452.90 4.94 778.18 136.07 23800.000 7432.00 450.43 1.60 610.39 111.98 23800.000 12847.00 451.58 2.02 722.84 125.37 23800.000 20244.00 452.90 2.52 857.28 144.42 23800.000 23083.00 453.38 2.69 907.98 153.99 * 24400.000 7870.00 450.53 1.34 656.14 116.94 * 24400.000 13730.00 451.81 2.05 775.37 131.41 * 24400.000 19957.00 453.34 2.53 920.28 152.83 * 24400.000 22468.00 453.88 2.67 975.69 163.79 1 17DEC98 17:16:06 SECNO Q CWSEL VCH VOL TWA * 24700.000 7870.00 450.52 1.83 699.95 121.38 * 24700.000 13730.00 451.78 2.89 825.44 136.83 * 24700.000 19957.00 453.30 3.78 979.66 159.72 * 24700.000 22468.00 453.83 4.09 1038.95 171.46 25530.000 7870.00 450.59 3.36 745.00 125.83 25530.000 13730.00 451.92 5.22 876.82 142.20 * 25530.000 19957.00 453.44 6.69 1039.74 165.77 * 25530.000 22468.00 453.96 7.24 1102.27 177.82 25770.000 7870.00 450.71 2.72 759.42 127.10 25770.000 13730.00 452.19 4.20' 893.08 143.53 25770.000 19957.00 453.87 5.37 1058.19 167.17 25770.000 22468.00 454.46 5.80 1121.50 179.24 * 26830.000 7870.00 450.90 3.48 821.54 133.06 * 26830.000 13730.00 452.61 4.99 969.93 158.20 26830.000 19957.00 454.58 5.24 1165.18 183.94 26830.000 22468.00 455.29 5.20 1240.36 196.43 PAGE 21 Existing Condition HEC -2 Model - Page 20 26880.000 7870.00 450.97 3.01 824.34 133.36 26880.000 13730.00 452.74 4.38 975.70 162.61 26880.000 19957.00 454.60 5.26 1183.04 193.58 26880.000 22468.00 455.35 5.23 1265.59 206.93 27165.000 7870.00 451.07 3.63 842.39 137.13 27165.000 13730.00 453.05 3.75 1001.56 166.83 27165.000 19957.00 455.09 3.01 1218.80 200.04 * 27165.000 22468.00 455.84 2.90 1306.34 213.84 27449.000 7870.00 451.19 3.43 862.16 144.01 27449.000 13730.00 453.16 3.55 1036.47 174.82 27449.000 19957.00 455.19 3.04 1270.50 208.66 27449.000 22468.00 455.94 2.79 1364.59 222.78 27748.000 7870.00 451.34 3.44 881.42 151.45 27748.000 13730.00 453.32 3.57 1072.23 183.49 27748.000 19957.00 455.31 3.16 1324.13 217.88 27748.000 22468.00 456.05 2.98 1425.18 232.36 * 27992.000 7870.00 451.53 2.36 905.45 159.80 * 27992.000 13730.00 453.47 2.74 1113.58 192.54 27992.000 19957.00 455.44 2.44 1383.86 227.30 27992.000 22468.00 456.16 2.41 1491.82 241.94 28168.000 7870.00 451.60 1.76 930.07 165.69 28168.000 13730.00 453.55 1.95 1149.90 198.71 28168.000 19957.00 455.50 1.94 1432.61 233.76 28168.000 22468.00 456.22 1.89 1545.26 248.52 1 17DEC98 17:16:06 SECNO Q CWSEL VCH VOL TWA 28492.000 7870.00 451.64 1.72 970.72 173.77 28492.000 13730.00 453.60 1.93 1206.77 207.25 28492.000 19957.00 455.54 1.94 1506.58 242.79 28492.000 22468.00 456.26 1.90 1625.81 257.78 28720.000 7870.00 451.68 1.95 1006.52 181.23 28720.000 13730.00 453.64 2.22' 1257.57 215.10 28720.000 19957.00 455.59 2.27 1573.01 251.05 28720.000 22468.00 456.31 2.26 1698.25 266.20 * 28890.000 7870.00 451.68 2.94 1024.89 185.53 * 28890.000 13730.00 453.66 3.10 1284.60 219.58 * 28890.000 19957.00 455.62 2.98 1608.94 255.73 28890.000 22468.00 456.34 2.91 1737.58 270.97 Existing Condition HEC -2 Model - Page 21 PAGE 22 29124.000 7870.00 451.74 3.35 1045.42 192.12 29124.000 13730.00 453.72 4.00 1318.86 226.66 29124.000 19957.00 455.71 3.80 1657.37 263.09 29124.000 22468.00 456.44 3.75 1791.40 278.45 29651.000 7870.00 452.02 2.75 1081.74 200.35 29651.000 13730.00 454.04 3.16 1372.69 235.83 29651.000 19957.00 456.00 3.21 1730.13 273.19 29651.000 22468.00 456.71 3.21 1871.67 289.17 29831.000 7870.00 452.08 2.68 1097.21 203.55 29831.000 13730.00 454.12 3.15 1394.94 239.34 29831.000 19957.00 456.07 3.31 1759.80 277.34 29831.000 22468.00 456.78 3.35 1904.41 293.69 * 30027.000 7870.00 452.12 3.55 1113.38 206.92 * 30027.000 13730.00 454.16 4.36 1418.38 243.10 * 30027.000 19957.00 456.13 4.55 1791.28 281.89 * 30027.000 22468.00 456.84 4.55 1939.22 298.55 30384.000 7870.00 452.32 4.25 1132.41 210.17 30384.000 13730.00 454.40 5.61 1444.66 246.89 30384.000 19957.00 456.51 6.00 1825.90 286.45 30384.000 22468.00 457.23 6.19 1977.23 303.46 * 30604.000 7870.00 452.52 4.71 1142.71 211.94 30604.000 13730.00 454.73 5.76 1459.46 249.28 30604.000 19957.00 457.11 5.62 1847.77 290.22 30604.000 22468.00 457.88 5.61 2002.10 307.63 * 30958.000 7870.00 453.03 3.55 1161.88 216.06 * 30958.000 13730.00 455.42 3.09 1489.20 254.34 * 30958.000 19957.00 457.70 2.59 1891.31 297.10 * 30958.000 22468.00 458.44 2.51 2051.05 315.07 1 17DEC98 17:16:06 SECNO Q CWSEL VCH VOL TWA * 31335.000 7870.00 452.89 8.22 1180.72 221.29 * 31335.000 13730.00 455.54 6.34' 1523.74 261.64 * 31335.000 19957.00 457.84 4.97 1943.89 305.64 * 31335.000 22468.00 458.58 4.74 2110.17 324.11 * 32150.000 7870.00 453.73 5.53 1186.18 222.59 32150.000 13730.00 455.62 8.33 1533.65 263.80 32150.000 19957.00 457.68 10.30 1959.33 308.38 32150.000 22468.00 458.35 10.93 2127.78 327.45 Existing Condition HEC -2 Model - Page 22 PAGE 23 32200.000 7870.00 453.67 7.25 1187.66 222.74 32200.000 13730.00 455.53 10.32 1535.42 263.97 32200.000 19957.00 457.59 12.16 1961.57 308.65 32200.000 22468.00 458.25 12.85 2130.24 327.87 32230.000 7870.00 453.74 7.19 1188.94 222.89 32230.000 13730.00 455.72 10.12 1537.01 264.13 32230.000 19957.00 457.92 11.78 1963.53 308.84 32230.000 22468.00 458.67 12.36 2132.35 328.07 * 32305.000 7870.00 453.49 11.51 1190.11 223.05 * 32305.000 13730.00 455.47 14.73 1538.55 264.34 * 32305.000 19957.00 457.86 14.98 1965.64 309.11 * 32305.000 22468.00 458.69 14.98 2134.67 328.37 * 32725.000 7870.00 456.75 4.68 1205.03 226.41 * 32725.000 13730.00 460.17 4.13 1567.12 269.71 * 32725.000 19957.00 462.39 3.92 2009.78 317.23 * 32725.000 22468.00 463.10 3.92 2184.93 336.95 33145.000 5645.00 457.33 2.47 1226.95 230.39 33145.000 10168.00 460.51 2.93 1604.55 275.19 33145.000 14753.00 462.65 3.23 2063.76 326.08 * 33145.000 16681.00 463.37 3.26 2245.55 346.59 33470.000 5645.00 457.48 3.21 1242.03 232.59 33470.000 10168.00 460.69 3.69 1628.59 279.61 33470.000 14753.00 462.85 3.55 2100.19 332.52 33470.000 16681.00 463.59 3.50 2286.89 353.51 34260.000 5645.00 457.95 2.22 1281.06 238.38 34260.000 10168.00 461.25 2.57 1690.59 289.95 34260.000 14753.00 463.31 2.84 2187.59 345.61 34260.000 16681.00 464.01 2.94 2383.85 367.03 * 34850.000 5645.00 458.20 4.97 1306.01 241.86 * 34850.000 10168.00 461.45 6.46 1728.94 296.92 * 34850.000 14753.00 463.57 6.48 2243.75 355.52 * 34850.000 16681.00 464.29 6.34 2447.34 377.84 1 17DEC98 17:16:06 SECNO Q 34950.000 5645.00 34950.000 10168.00 34950.000 14753.00 34950.000 16681.00 CWSEL VCH VOL TWA 458.34 4.91 1308.63 242.13 461.70 6.23 1733.07 298.18 463.83 6.18 2251.30 357.46 464.52 6.09 2456.31 379.95 PAGE 24 Existing Condition HEC -2 Model - Page 23 36970.000 5645.00 460.75 5.33 1360.07 247.80 36970.000 10168.00 464.90 5.59 1831.93 324.14 36970.000 14753.00 466.76 5.78 2421.09 403.92 36970.000 16681.00 467.32 5.85 2655.22 428.67 * 38200.000 5645.00 461.74 2.46 1411.13 257.27 * 38200.000 10168.00 465.73 2.23 1948.34 345.58 * 38200.000 14753.00 467.56 2.36 2584.66 434.26 * 38200.000 16681.00 468.11 2.48 2835.81 461.00 39290.000 5645.00 462.05 2.86 1483.21 273.61 39290.000 10168.00 465.91 2.57 2108.75 371.64 39290.000 14753.00 467.75 2.84 2794.89 462.48 39290.000 16681.00 468.30 2.98 3061.77 490.74 * 39440.000 5645.00 461.96 4.82 1492.08 275.70 * 39440.000 10168.00 465.73 5.56 2129.86 375.97 * 39440.000 14753.00 467.59 5.88 2824.66 467.44 * 39440.000 16681.00 468.15 6.06 3094.34 495.86 39490.000 5645.00 462.23 3.08 1493.80 275.87 39490.000 10168.00 466.03 3.48 2133.32 376.69 39490.000 14753.00 467.82 3.98 2829.57 468.30 39490.000 16681.00 468.36 4.20 3099.73 496.74 39540.000 5645.00 462.12 4.75 1495.53 276.05 39540.000 10168.00 465.92 5.28 2136.86 377.43 39540.000 14753.00 467.77 5.51 2834.58 469.15 39540.000 16681.00 468.33 5.65 3105.22 497.63 40650.000 5645.00 463.10 5.01 1525.53 278.81 40650.000 10168.00 466.82 5.83 2204.25 395.77 40650.000 14753.00 468.60 6.14 2938.72 490.87 40650.000 16681.00 469.16 6.29 3221.71 520.05 48000.000 2994.00 466.90 2.45 1747.71 316.23 48000.000 5761.00 469.87 2.43 2670.63 508.54 * 48000.000 9182.00 471.43 2.69 3599.10 613.15 * 48000.000 10837.00 471.98 2.81 3950.14 643.56 51350.000 3166.00 467.49 2.09 1875.18 342.69 * 51350.000 5796.00 470.77 2.45 2985.77 603.73 * 51350.000 9885.00 472.40 2.84' 4070.12 713.15 * 51350.000 11721.00 472.99 3.00 4477.43 743.69 1 17DEC98 17:16:06 PAGE 25 SECNO Q CWSEL VCH VOL TWA Existing Condition HEC -2 Model - Page 24 53350.000 3166.00 467.75 1.97 1949.88 348.98 * 53350.000 5796.00 471.27 2.72 3103.84 627.77 53350.000 9885.00 473.09 3.95 4235.95 747.91 53350.000 11721.00 473.72 4.35 4665.10 780.90 * 55590.000 2700.00 468.12 3.22 2016.86 355.43 * 55590.000 6584.00 471.79 5.68 3196.94 636.79 * 55590.000 9918.00 474.01 6.38 4377.83 784.22 * 55590.000 12101.00 474.80 6.76 4834.21 821.68 56940.000 2700.00 468.68 2.96 2044.87 358.19 56940.000 6584.00 473.13 4.64 3241.44 642.07 56940.000 9918.00 475.42 5.27 4455.97 806.93 56940.000 12101.00 476.27 5.57 4932.98 847.77 1 800.00 .00 .00 22370.000 800.00 17DEC98 17:16:06 22370.000 800.00 .00 .00 DENTON CREEK -- DENCR SUMMARY PRINTOUT TABLE 150 SECNO XLCH ELTRD ELLC 18440.000 .00 .00 .00 18440.000 .00 .00 .00 18440.000 .00 .00 .00 18440.000 .00 .00 .00 * 19330.000 650.00 .00 .00 * 19330.000 650.00 .00 .00 * 19330.000 650.00 .00 .00 * 19330.000 650.00 .00 .00 19930.000 600.00 .00 .00 19930.000 600.00 .00 .00 * 19930.000 600.00 .00 .00 * 19930.000 600.00 .00 .00 21560.000 1450.00 .00 .00 21560.000 1450.00 .00 .00' 21560.000 1450.00 .00 .00 21560.000 1450.00 .00 .00 22370.000 800.00 .00 .00 22370.000 800.00 .00 .00 22370.000 800.00 .00 .00 22370.000 800.00 .00 .00 PAGE 26 ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K 431.40 7432.00 450.19 .00 450.24 4.59 2.46 4794.96 3468.05 431.40 12847.00 451.10 .00 451.16 4.68 2.61 7214.80 5939.72 431.40 20244.00 452.06 .00 452.14 4.63 2.80 10116.82 9409.69 431.40 23083.00 452.38 .00 452.46 4.61 2.86 11124.15 10753.95 431.70 7432.00 450.27 .00 450.28 .18 .98 11118.33 17376.70 431.70 12847.00 451.20 .00 451.22 .35 1.42 13825.68 21688.81 431.70 20244.00 452.19 .00 452.22 .56 1.86 16935.62 27033.93 431.70 23083.00 452.51 .00 452.55 .63 2.01 18035.56 28986.67 432.00 7432.00 450.27 .00 450.30 .31 1.30 6656.77 13423.35 432.00 12847.00 451.21 .00 451.26 .68 2.00 7963.69 15572.10 432.00 20244.00 452.19 .00 452.30 1.24 2.79 9499.56 18198.19 432.00 23083.00 452.51 .00 452.64 1.45 3.06 10052.85 19150.56 432.40 7432.00 450.31 .00 450.36 .49 1.71 4343.27 10632.45 432.40 12847.00 451.29 .00 451.41 1.20 2.76 4657.18 11729.16 432.40 20244.00 452.33 .00 452.59 2.43 4.06 5105.42 12973.59 432.40 23083.00 452.67 .00 452.99 2.96 4.51 5338.71 13422.11 432.50 7432.00 450.35 .00 450.41 .70 1.92 3875.40 8913.66 432.50 12847.00 451.39 .00 451.53 1.64 3.07 4191.15 10036.66 432.50 20244.00 452.51 .00 452.82 3.19 4.46 4590.42 11337.48 432.50 23083.00 452.90 .00 453.28 3.90 4.94 4811.45 11688.12 Existing Condition HEC -2 Model - Page 25 23800.000 1430.00 .00 .00 433.30 7432.00 450.43 .00 450.53 1.30 1.60 3194.97 6516.22 23800.000 1430.00 .00 .00 433.30 12847.00 451.58 .00 451.80 3.04 2.02 3686.37 7363.27 23800.000 1430.00 .00 .00 433.30 20244.00 452.90 .00 453.31 5.25 2.52 4486.28 8836.68 23800.000 1430.00 .00 .00 433.30 23083.00 453.38 .00 453.84 5.93 2.69 4870.03 9479.02 * 24400.000 550.00 .00 .00 431.50 7870.00 450.53 .00 450.56 .47 1.34 5894.90 11460.49 * 24400.000 550.00 .00 .00 431.50 13730.00 451.81 .00 451.88 1.03 2.05 6704.29 13526.57 * 24400.000 550.00 .00 .00 431.50 19957.00 453.34 .00 453.44 1.60 2.53 7899.36 15759.14 * 24400.000 550.00 .00 .00 431.50 22468.00 453.88 .00 453.99 1.76 2.67 8425.48 16939.60 * 24700.000 350.00 .00 .00 433.90 7870.00 450.52 .00 450.61 1.40 1.83 3264.40 6641.48 * 24700.000 350.00 .00 .00 433.90 13730.00 451.78 .00 452.00 3.01 2.89 3763.22 7920.41 * 24700.000 350.00 .00 .00 433.90 19957.00 453.30 .00 453.61 4.21 3.78 4494.73 9731.76 * 24700.000 350.00 .00 .00 433.90 22468.00 453.83 .00 454.18 4.62 4.09 4775.99 10451.34 25530.000 700.00 .00 .00 434.40 7870.00 450.59 .00 450.77 2.64 3.36 2342.06 4839.62 25530.000 700.00 .00 .00 434.40 13730.00 451.92 .00 452.34 5.81 5.22 2631.60 5698.22 * 25530.000 700.00 .00 .00 434.40 19957.00 453.44 .00 454.14 8.65 6.69 2982.32 6784.55 * 25530.000 700.00 .00 .00 434.40 22468.00 453.96 .00 454.77 9.80 7.24 3105.30 7176.68 17DEC98 17:16:06 PAGE 27 SECNO XLCH ELTRD ELLC ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K 25770.000 240.00 .00 .00 434.60 7870.00 450.71 .00 450.82 1.60 2.72 2891.52 6225.33 25770.000 240.00 .00 .00 434.60 13730.00 452.19 .00 452.46 3.43 4.20 3267.95 7416.84 25770.000 240.00 .00 .00 434.60 19957.00 453.87 .00 454.32 5.03 5.37 3714.43 8898.72 25770.000 240.00 .00 .00 434.60 22468.00 454.46 .00 454.98 5.65 5.80 3875.35 9449.84 * 26830.000 1050.00 .00 .00 436.30 7870.00 450.90 .00 451.09 3.66 3.48 2262.49 4114.73 * 26830.000 1050.00 .00 .00 436.30 13730.00 452.61 .00 452.99 7.03 4.99 3146.53 5178.64 26830.000 1050.00 .00 .00 436.30 19957.00 454.58 .00 454.95 7.25 5.24 5337.66 7412.82 26830.000 1050.00 .00 .00 436.30 22468.00 455.29 .00 455.64 6.93 5.20 6215.49 8534.56 26880.000 50.00 .00 .00 436.20 7870.00 450.97 .00 451.11 3.15 3.01 2617.75 4434.19 26880.000 50.00 .00 .00 436.20 13730.00 452.74 .00 453.04 5.57 4.38 3133.87 5816.00 26880.000 50.00 .00 .00 436.20 19957.00 454.60 .00 455.02 6.93 5.26 4214.22 7578.60 26880.000 50.00 .00 .00 436.20 22468.00 455.35 .00 455.75 11.84 5.23 5133.33 6530.87 27165.000 284.00 .00 .00 436.10 7870.00 451.07 .00 451.22 4.66 3.63 3504.23 3646.48 27165.000 284.00 .00 .00 436.10 13730.00 453.05 .00 453.18 4.05 3.75 6016.51 6825.39 27165.000 284.00 .00 .00 436.10 19957.00 455.09 .00 455.18 3.74 3.01 8814.76 10313.12 * 27165.000 284.00 .00 .00 436.10 22468.00 455.84 .00 455.93 3.44 2.90 9881.31 12113.95 27449.000 284.00 .00 .00 435.60 7870.00 451.19 .00 451.36 5.17 3.43 2915.85 3461.87 27449.000 284.00 .00 .00 435.60 13730.00 453.16 .00 453.31 5.37 3.55 5601.11 5926.14 27449.000 284.00 .00 .00 435.60 19957.00 455.19 .00 455.29 4.36 3.04 8555.92 9554.82 27449.000 284.00 .00 .00 435.60 22468.00 455.94 .00 456.03 4.11 2.79 9727.24 11078.54 1 Existing Condition HEC -2 Model - Page 26 27748.000 27748.000 299.00 .00 .00 435.20 7870.00 451.34 .00 451.51 5.20 3.44 2888.89 3452.20 27748.000 299.00 299.00 .00 .00 435.20 13730.00 453.32 .00 453.46 5.50 3.57 5552.39 5855.54 27748.000 299.00 .00 .00 435.20 19957.00 455.31 .00 455.42 4.32 3.16 8379.91 9597.66 .00 .00 435.20 22468.00 456.05 .00 456.14 4.07 2.98 9453.51 11131.44 * 27992.000 * 244.00 .00 .00 435.60 7870.00 451.53 .00 451.60 1.87 2.36 4857.16 5757.67 27992.000 244.00 .00 .00 435.60 13730.00 453.47 .00 453.55 2.09 2.74 7286.85 9493.25 27992.000 244.00 .00 .00 435.60 19957.00 455.44 .00 455.51 2.50 2.44 9884.55 12623.25 27992.000 244.00 .00 .00 435.60 22468.00 456.16 .00 456.23 2.45 2.41 10854.48 14364.86 28168.000 176.00 .00 .00 436.60 7870.00 451.60 .00 451.63 1.39 1.76 5733.83 6679.34 28168.000 176.00 .00 .00 436.60 13730.00 453.55 .00 453.59 1.62 1.95 8091.82 10786.42 28168.000 176.00 .00 .00 436.60 19957.00 455.50 .00 455.55 1.59 1.94 10592.09 15811.03 28168.000 176.00 .00 .00 436.60 22468.00 456.22 .00 456.28 1.60 1.89 11548.80 17784.27 28492.000 324.00 .00 .00 436.30 7870.00 451.64 .00 451.67 1.34 1.72 5567.83 6807.80 28492.000 324.00 .00 .00 436.30 13730.00 453.60 .00 453.64 1.59 1.93 7759.88 10882.56 28492.000 324.00 .00 .00 436.30 19957.00 455.54 .00 455.60 1.61 1.94 10053.44 15742.20 28492.000 324.00 .00 .00 436.30 22468.00 456.26 .00 456.33 1.62 1.90 10941.66 17676.51 28720.000 228.00 .00 .00 436.80 7870.00 451.68 .00 451.72 1.72 1.95 5005.38 5992.44 28720.000 228.00 .00 .00 436.80 13730.00 453.64 .00 453.70 2.07 2.22 6989.49 9552.14 28720.000 228.00 .00 .00 436.80 19957.00 455.59 .00 455.66 2.08 2.27 9063.59 13848.04 28720.000 228.00 .00 .00 436.80 22468.00 456.31 .00 456.39 2.08 2.26 9860.08 15583.09 17DEC98 17:16:06 PAGE 28 SECNO XLCH ELTRD ELLC ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K * 28890.000 170.00 .00 .00 437.10 7870.00 451.68 .00 451.78 4.26 2.94 3727.78 3814.83 * 28890.000 * 170.00 .00 .00 437.10 13730.00 453.66 .00 453.77 4.54 3.10 5754.48 6441.05 28890.000 170.00 .00 .00 437.10 19957.00 455.62 .00 455.72 4.24 2.98 7803.96 9687.08 28890.000 170.00 .00 .00 437.10 22468.00 456.34 .00 456.45 4.15 2.91 8586.94 11033.82 29124.000 234.00 .00 .00 437.40 7870.00 451.74 .00 451.91 4.11 3.35 2834.95 3881.68 29124.000 234.00 .00 .00 437.40 13730.00 453.72 .00 453.92 4.76 4.00 4652.30 6294.63 29124.000 234.00 .00 .00 437.40 19957.00 455.71 .00 455.88 5.74 3.80 6591.87 8330.98 29124.000 234.00 .00 .00 437.40 22468.00 456.44 .00 456.60 5.55 3.75 7332.81 9535.99 29651.000 527.00 .00 .00 438.06 7870.00 452.02 .00 452.11 3.60 2.75 3662.05 4150.40 29651.000 527.00 .00 .00 438.06 13730.00 454.04 .00 454.16 4.51 3.16 5301.72 6463.93 29651.000 527.00 .00 .00 438.06 19957.00 456.00 .00 456.13 4.62 3.21 7095.05 9283.75 29651.000 527.00 .00 .00 438.06 22468.00 456.71 .00 456.84 4.62 3.21 7835.42 10456.82 29831.000 180.00 .00 .00 438.14 7870.00 452.08 .00 452.17 3.25 2.68 3546.56 4366.53 29831.000 180.00 .00 .00 438.14 13730.00 454.12 .00 454.24 4.09 3.15 4996.77 6792.79 29831.000 180.00 .00 .00 438.14 19957.00 456.07 .00 456.22 4.23 3.31 6578.55 9702.91 29831.000 180.00 .00 .00 438.14 22468.00 456.78 .00 456.93 4.23 3.35 7237.73 10923.09 1 Existing Condition HEC -2 Model - Page 27 * 30027.000 196.00 .00 .00 438.23 7870.00 452.12 .00 452.30 6.65 3.55 2535.79 3051.57 * 30027.000 196.00 .00 .00 438.23 13730.00 454.16 .00 454.42 9.71 4.36 3549.75 4405.56 * 30027.000 196.00 .00 .00 438.23 19957.00 456.13 .00 456.42 11.47 4.55 4683.03 5893.61 * 30027.000 196.00 .00 .00 438.23 22468.00 456.84 .00 457.14 11.92 4.55 5144.33 6507.73 30384.000 357.00 .00 .00 438.14 7870.00 452.32 .00 452.58 7.56 4.25 1965.33 2861.77 30384.000 357.00 .00 .00 438.14 13730.00 454.40 .00 454.85 10.69 5.61 2617.29 4199.12 30384.000 357.00 .00 .00 438.14 19957.00 456.51 .00 457.04 20.01 6.00 3399.09 4461.63 30384.000 357.00 .00 .00 438.14 22468.00 457.23 .00 457.80 21.15 6.19 3712.71 4885.26 * 30604.000 220.00 .00 .00 438.55 7870.00 452.52 .00 452.84 15.44 4.71 1826.49 2003.09 30604.000 220.00 .00 .00 438.55 13730.00 454.73 .00 455.19 21.02 5.76 2718.80 2994.64 30604.000 220.00 .00 .00 438.55 19957.00 457.11 .00 457.52 18.67 5.62 4248.22 4619.04 30604.000 220.00 .00 .00 438.55 22468.00 457.88 .00 458.28 17.36 5.61 4890.43 5392.71 * 30958.000 354.00 .00 .00 438.55 7870.00 453.03 .00 453.14 5.13 3.55 3294.03 3476.00 * 30958.000 354.00 .00 .00 438.55 13730.00 455.42 .00 455.53 4.96 3.09 5314.03 6163.84 * 30958.000 354.00 .00 .00 438.55 19957.00 457.70 100 457.81 4.24 2.59 7596.60 9689.21 * 30958.000 354.00 .00 .00 438.55 22468.00 458.44 .00 458.55 4.11 2.51 8452.54 11083.29 * 31335.000 377.00 .00 .00 438.55 7870.00 452.89 .00 453.78 40.25 8.22 1318.25 1240.44 * 31335.000 377.00 .00 .00 438.55 13730.00 455.54 .00 455.93 21.32 6.34 3219.84 2973.33 * 31335.000 377.00 .00 .00 438.55 19957.00 457.84 .00 458.08 11.56 4.97 5447.32 5868.78 * 31335.000 377.00 .00 .00 438.55 22468.00 458.58 .00 458.80 10.15 4.74 6226.22 7050.67 * 32150.000 170.00 .00 .00 437.00 7870.00 453.73 .00 454.20 6.19 5.53 1450.17 3163.63 32150.000 170.00 .00 .00 437.00 13730.00 455.62 .00 456.68 12.56 8.33 1725.64 3873.89 32150.000 170.00 .00 .00 437.00 19957.00 457.68 .00 459.27 17.20 10.30 2206.90 4811.58 32150.000 170.00 .00 .00 437.00 22468.00 458.35 .00 460.11 18.74 10.93 2490.71 5189.59 17DEC98 17:16:06 PAGE 29 SECNO XLCH ELTRD ELLC ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K 32200.000 50.00 463.60- 999999.00 435.00 7870.00 453.67 .00 454.47 9.84 7.25 1116.13 2508.99 32200.000 50.00 463.60- 999999.00 435.00 13730.00 455.53 .00 457.13 19.06 10.32 1367.02 3144.98 32200.000 50.00 463.60- 999999.00 435.00 19957.00 457.59 .00 459.80 24.90 12.16 1685.34 3999.36 32200.000 50.00 463.60- 999999.00 435.00 22468.00 458.25 .00 460.71 27.23 12.85 1796.08 4305.64 32230.000 50.00 463.60- 999999.00 435.00 7870.00 453.74 .00 454.52 9.68 7.19 1124.51 2529.54 32230.000 50.00 463.60- 999999.00 435.00 13730.00 455.72 .00 457.26 18.22 10.12 1394.30 3216.51 32230.000 50.00 463.60- 999999.00 435.00 19957.00 457.92 .00 459.99 23.12 11.78 1740.10 4150.27 32230.000 50.00 463.60- 999999.00 435.00 22468.00 458.67 .00 460.94 24.84 12.36 1868.52 4508.28 * 32305.000 55.00 .00 .00 437.70 7870.00 453.49 .00 455.50 95.06 11.51 731.21 807.18 * 32305.000 55.00 .00 .00 437.70 13730.00 455.47 455.47 458.62 136.41 14.73 1044.71 1175.55 * 32305.000 55.00 .00 .00 437.70 19957.00 457.86 457.63 460.94 114.46 14.98 1588.22 1865.40 * 32305.000 55.00 .00 .00 437.70 22468.00 458.69 458.25 461.70 107.34 14.98 1818.60 2168.60 1 Existing Condition HEC -2 Model - Page 28 * 32725.000 420.00 .00 .00 438.20 7870.00 456.75 .00 457.01 10.51 4.68 2399.92 2427.42 * 32725.000 420.00 .00 .00 438.20 13730.00 460.17 .00 460.35 7.44 4.13 4779.98 5032.58 * 32725.000 420.00 .00 .00 438.20 19957.00 462.39 .00 462.54 6.40 3.92 7273.89 7889.30 * 32725.000 420.00 .00 .00 438.20 22468.00 463.10 .00 463.24 6.02 3.92 8232.41 9157.70 33145.000 420.00 .00 .00 438.40 5645.00 457.33 .00 457.43 6.98 2.47 2284.71 2136.67 33145.000 420.00 .00 .00 438.40 10168.00 460.51 .00 460.65 6.70 2.93 3474.74 3927.26 33145.000 420.00 .00 .00 438.40 14753.00 462.65 .00 462.80 6.99 3.23 4943.05 5578.18 * 33145.000 420.00 .00 .00 438.40 16681.00 463.37 .00 463.52 8.63 3.26 5581.40 5679.67 33470.000 325.00 .00 .00 439.00 5645.00 457.48 .00 457.64 4.67 3.21 1756.48 2613.23 33470.000 325.00 .00 .00 439.00 10168.00 460.69 .00 460.90 6.65 3.69 3013.08 3943.10 33470.000 325.00 .00 .00 439.00 14753.00 462.85 .00 463.02 6.29 3.55 5137.13 5884.43 33470.000 325.00 .00 .00 439.00 16681.00 463.59 .00 463.75 5.78 3.50 5924.16 6939.12 34260.000 790.00 .00 .00 438.80 5645.00 457.95 .00 458.03 4.38 2.22 2548.04 2698.16 34260.000 790.00 .00 .00 438.80 10168.00 461.25 .00 461.35 4.34 2.57 3963.64 4880.29 34260.000 790.00 .00 .00 438.80 14753.00 463.31 .00 463.44 4.41 2.84 5340.71 7027.78 34260.000 790.00 .00 .00 438.80 16681.00 464.01 .00 464.14 4.48 2.94 5879.64 7883.14 * 34850.000 590.00 .00 .00 439.30 5645.00 458.20 .00 458.59 12.47 4.97 1135.24 1598.53 * 34850.000 590.00 .00 .00 439.30 10168.00 461.45 .00 462.09 19.19 6.46 1716.38 2321.16 * 34850.000 590.00 .00 .00 439.30 14753.00 463.57 .00 464.13 19.20 6.48 3076.04 3366.81 * 34850.000 590.00 .00 .00 439.30 16681.00 464.29 .00 464.79 18.10 6.34 3664.20 3920.84 34950.000 100.00 .00 .00 439.30 5645.00 458.34 .00 458.71 12.02 4.91 1150.65 1628.40 34950.000 100.00 .00 .00 439.30 10168.00 461.70 .00 462.29 17.92 6.23 1840.47 2401.72 34950.000 100.00 .00 .00 439.30 14753.00 463.83 .00 464.33 17.39 6.18 3250.06 3538.21 34950.000 100.00 .00 .00 439.30 16681.00 464.52 .00 464.98 16.50 6.09 3819.03 4106.11 36970.000 2020.00 .00 .00 440.00 5645.00 460.75 .00 461.19 12.31 5.33 1067.89 1608.70 36970.000 2020.00 .00 .00 440.00 10168.00 464.90 .00 465.33 12.71 5.59 2423.32 2851.93 36970.000 2020.00 .00 .00 440.00 14753.00 466.76 .00 467.17 11.50 5.78 4072.81 4349.50 36970.000 2020.00 .00 .00 440.00 16681.00 467.32 .00 467.71 11.18 5.85 4759.95 4987.94 17DEC98 17:16:06 PAGE 30 SECNO XLCH ELTRD ELLC ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K * 38200.000 1230.00 .00 .00 441.00 5645.00 461.74 .00 461.81 2.68 2.46 2886.95 3447.27 * 38200.000 1230.00 .00 .00 441.00 10168.00 465.73 .00 465.78 1.63 2.23 6855.35 7972.65 * 38200.000 1230.00 .00 .00 441.00 14753.00 467.56 .00 467.61 1.77 2.36 9091.19 11082.06 * 38200.000 1230.00 .00 .00 441.00 16681.00 468.11 .00 468.16 1.86 2.48 9797.09 12242.75 39290.000 1090.00 .00 .00 441.88 5645.00 462.05 .00 462.15 3.46 2.86 2838.36 3033.77 39290.000 1090.00 .00 .00 441.88 10168.00 465.91 .00 465.97 1.90 2.57 6104.12 7370.67 39290.000 1090.00 .00 .00 441.88 14753.00 467.75 .00 467.82 2.00 2.84 7979.26 10426.88 39290.000 1090.00 .00 .00 441.88 16681.00 468.30 .00 468.38 2.11 2.98 8573.94 11473.36 1 Existing Condition HEC -2 Model - Page 29 * 39440.000 150.00 .00 .00 442.00 5645.00 461.96 .00 462.32 9.34 4.82 1170.96 1846.61 * 39440.000 150.00 .00 .00 442.00 10168.00 465.73 .00 466.15 9.00 5.56 2736.73 3388.99 * 39440.000 150.00 .00 .00 442.00 14753.00 467.59 .00 467.99 8.56 5.88 4302.29 5041.89 * 39440.000 150.00 .00 .00 442.00 16681.00 468.15 .00 468.55 8.69 6.06 4823.26 5657.64 39490.000 50.00 .00 .00 442.00 5645.00 462.23 .00 462.37 4.83 3.08 1830.08 2569.21 39490.000 50.00 .00 .00 442.00 10168.00 466.03 .00 466.20 4.93 3.48 3280.97 4578.20 39490.000 50.00 .00 .00 442.00 14753.00 467.82 .00 468.04 5.75 3.98 4256.39 6149.85 39490.000 50.00 .00 .00 442.00 16681.00 468.36 .00 468.60 6.16 4.20 4568.16 6718.29 39540.000 50.00 .00 .00 442.00 5645.00 462.12 .00 462.47 9.00 4.75 1187.32 1881.25 39540.000 50.00 .00 .00 442.00 10168.00 465.92 .00 466.29 7.98 5.28 2885.94 3598.55 39540.000 50.00 .00 .00 442.00 14753.00 467.77 .00 468.11 7.39 5.51 4468.19 5426.68 39540.000 50.00 .00 .00 442.00 16681.00 468.33 .00 468.67 7.45 5.65 4994.58 6111.15 40650.000 1110.00 .00 .00 440.00 5645.00 463.10 .00 463.47 9.09 5.01 1200.83 1872.24 40650.000 1110.00 .00 .00 440.00 10168.00 466.82 .00 467.25 9.41 5.83 2569.79 3314.69 40650.000 1110.00 .00 .00 440.00 14753.00 468.60 .00 469.01 9.11 6.14 3986.94 4887.35 40650.000 1110.00 .00 .00 440.00 16681.00 469.16 .00 469.57 9.16 6.29 4466.08 5511.91 48000.000 7350.00 .00 .00 445.60 2994.00 466.90 .00 466.98 2.19 2.45 1737.09 2022.80 48000.000 7350.00 .00 .00 445.60 5761.00 469.87 .00 469.92 1.65 2.43 4924.17 4488.50 * 48000.000 7350.00 .00 .00 445.60 9182.00 471.43 .00 471.48 1.77 2.69 7200.48 6894.99 * 48000.000 7350.00 .00 .00 445.60 10837.00 471.98 .00 472.03 1.87 2.81 8020.11 7925.81 51350.000 3350.00 .00 .00 446.50 3166.00 467.49 .00 467.56 1.37 2.09 1516.58 2703.21 * 51350.000 3350.00 .00 .00 446.50 5796.00 470.77 .00 470.85 5.02 2.45 2884.58 2586.68 * 51350.000 3350.00 .00 .00 446.50 9885.00 472.40 .00 472.51 5.35 2.84 4399.02 4272.40 * 51350.000 3350.00 .00 .00 446.50 11721.00 472.99 .00 473.10 5.40 3.00 4947.14 5044.10 53350.000 2000.00 .00 .00 448.00 3166.00 467.75 .00 467.80 1.15 1.97 1812.97 2948.92 * 53350.000 2000.00 .00 .00 448.00 5796.00 471.27 .00 471.37 1.62 2.72 2542.91 4560.26 53350.000 2000.00 .00 .00 448.00 9885.00 473.09 .00 473.28 2.99 3.95 3375.22 5719.65 53350.000 2000.00 .00 .00 448.00 11721.00 473.72 .00 473.95 3.47 4.35 3909.42 6292.89 * 55590.000 2240.00 .00 .00 452.40 2700.00 468.12 .00 468.28 5.00 3.22 838.48 1207.02 * 55590.000 2240.00 .00 .00 452.40 6584.00 471.79 .00 472.30 11.66 5.68 1161.16 1928.25 * 55590.000 2240.00 .00 .00 452.40 9918.00 474.01 .00 474.56 11.93 6.38 2374.98 2871.59 * 55590.000 2240.00 .00 .00 452.40 12101.00 474.80 .00 475.37 12.54 6.76 2981.45 3417.67 17DEC98 17:16:06 PAGE 31 SECNO XLCH ELTRD ELLC ELMIN Q CWSEL CRIWS EG 10 *KS VCH AREA .01K 56940.000 1350.00 .00 .00 449.00 2700.00 468.68 .00 468.82 3.21 2.96 976.60 1507.69 56940.000 1350.00 .00 .00 449.00 6584.00 473.13 .00 473.42 6.11 4.64 1751.44 2663.12 56940.000 1350.00 .00 .00 449.00 9918.00 475.42 .00 475.75 6.74 5.27 2851.64 3819.86 56940.000 1350.00 .00 .00 449.00 12101.00 476.27 .00 476.61 7.05 5.57 3671.98 4556.07 1 Existing Condition HEC -2 Model - Page 30 I 17DEC98 17:16:06 PAGE 32 DENTON CREEK -- DENCR SUMMARY PRINTOUT TABLE 150 SECNO Q CWSEL DIFWSP DIFWSX DIFKWS TOPWID XLCH 18440.000 7432.00 450.19 .00 .00 1.19 2423.09 .00 18440.000 12847.00 451.10 .91 .00 .40 2885.25 .00 18440.000 20244.00 452.06 .96 .00 1.36 3153.69 .00 18440.000 23083.00 452.38 .32 .00 1.68 3172.80 .00 * 19330.000 7432.00 450.27 .00 .07 .00 2775.95 650.00 * 19330.000 12847.00 451.20 .93 .10 .00 3025.72 650.00 * 19330.000 20244.00 452.19 .99 .13 .00 3304.24 650.00 * 19330.000 23083.00 452.51 .33 .13 .00 3428.35 650.00 19930.000 7432.00 450.27 .00 .00 .00 1302.65 600.00 19930.000 12847.00 451.21 .93 .01 .00 1488.55 600.00 * 19930.000 20244.00 452.19 .98 .00 .00 1662.56 600.00 * 19930.000 23083.00 452.51 .32 .00 .00 1754.06 600.00 21560.000 7432.00 450.31 .00 .04 .00 308.89 1450.00 21560.000 12847.00 451.29 .98 .09 .00 354.44 1450.00 21560.000 20244.00 452.33 1.04 .14 .00 612.19 1450.00 21560.000 23083.00 452.67 .34 .16 .00 746.81 1450.00 22370.000 7432.00 450.35 .00 .04 .00 301.61 800.00 22370.000 12847.00 451.39 1.03 .09 .00 306.09 800.00 22370.000 20244.00 452.51 1.13 .18 .00 508.63 800.00 22370.000 23083.00 452.90 .38 .23 .00 645.87 800.00 23800.000 7432.00 450.43 .00 .08 .00 357.71 1430.00 23800.000 12847.00 451.58 1.14 .19 .00 503.15 1430.00 23800.000 20244.00 452.90 1.33 .39 .00 719.51 1430.00 23800.000 23083.00 453.38 .48 .48 .00 898.31 1430.00 * 24400.000 7870.00 450.53 .00 .10 .00 606.35 550.00 * 24400.000 13730.00 451.81 1.28 .24 .00 671.07 550.00 * 24400.000 19957.00 453.34 1.53 .44 .00 915.07 550.00 * 24400.000 22468.00 453.88 .54 .49 .00 1046.16 550.00 * 24700.000 7870.00 450.52 .00 -.01 .00 340.05 350.00 * 24700.000 13730.00 451.78 1.26 -.03 .00 445.27 350.00 * 24700.000 19957.00 453.30 1.52 -.04 .00 517.23 350.00 * 24700.000 22468.00 453.83 .53 -.05 .00 553.18 350.00 Existing Condition HEC -2 Model - Page 31 25530.000 7870.00 450.59 .00 .08 .00 213.49 700.00 25530.000 13730.00 451.92 1.33 .14 .00 223.51 700.00 * 25530.000 19957.00 453.44 1.52 .14 .00 235.07 700.00 * 25530.000 22468.00 453.96 .52 .13 .00 239.00 700.00 1 17DEC98 17:16:06 SECNO Q CWSEL DIFWSP DIFWSX DIFKWS TOPWID XLCH 25770.000 7870.00 450.71 .00 .11 .00 248.91 240.00 25770.000 13730.00 452.19 1.48 .27 .00 259.70 240.00 25770.000 19957.00 453.87 1.68 .43 .00 271.95 240.00 25770.000 22468.00 454.46 .59 .50 .00 276.23 240.00 * 26830.000 7870.00 450.90 .00 .19 .00 245.36 1050.00 * 26830.000 13730.00 452.61 1.71 .42 .00 1020.60 1050.00 26830.000 19957.00 454.58 1.96 .71 .00 1194.27 1050.00 26830.000 22468.00 455.29 .72 .84 .00 1225.28 1050.00 26880.000 7870.00 450.97 .00 .07 .00 275.86 50.00 26880.000 13730.00 452.74 1.77 .12 .00 308.37 50.00 26880.000 19957.00 454.60 1.86 .02 .00 1158.37 50.00 26880.000 22468.00 455.35 .75 .06 .00 1319.79 50.00 27165.000 7870.00 451.07 .00 .10 .00 1179.56 284.00 27165.000 13730.00 453.05 1.98 .31 100 1317.16 284.00 27165.000 19957.00 455.09 2.05 .49 .00 1413.93 284.00 * 27165.000 22468.00 455.84 .75 .49 .00 1437.19 284.00 27449.000 7870.00 451.19 .00 .12 .00 1178.86 284.00 27449.000 13730.00 453.16 1.97 .12 .00 1424.43 284.00 27449.000 19957.00 455.19 2.03 .10 .00 1534.05 284.00 27449.000 22468.00 455.94 .75 .10 .00 1611.22 284.00 27748.000 7870.00 451.34 .00 .15 .00 1229.52 299.00 27748.000 13730.00 453.32 1.97 .16 .00 1383.85 299.00 27748.000 19957.00 455.31 1.99 .12 .00 1441.19 299.00 27748.000 22468.00 456.05 .74 .11 .00 1472.25 299.00 * 27992.000 7870.00 451.53 .00 .19 .00 1226.92 244.00 * 27992.000 13730.00 453.47 1.94' .16 .00 1284.39 244.00 27992.000 19957.00 455.44 1.97 .13 .00 1343.28 244.00 27992.000 22468.00 456.16 .72 .12 .00 1364.83 244.00 28168.000 7870.00 451.60 .00 .07 .00 1177.67 176.00 28168.000 13730.00 453.55 1.95 .07 .00 1241.98 176.00 28168.000 19957.00 455.50 1.95 .05 .00 1312.45 176.00 28168.000 22468.00 456.22 .72 .05 .00 1344.40 176.00 PAGE 33 Existing Condition HEC -2 Model - Page 32 28492.000 7870.00 451.64 .00 .04 .00 1089.39 324.00 28492.000 13730.00 453.60 1.96 .05 .00 1151.60 324.00 28492.000 19957.00 455.54 1.95 .05 .00 1218.90 324.00 28492.000 22468.00 456.26 .72 .05 .00 1249.31 324.00 28720.000 7870.00 451.68 .00 .04 .00 984.87 228.00 28720.000 13730.00 453.64 1.96 .04 .00 1038.60 228.00 28720.000 19957.00 455.59 1.95 .05 .00 1094.75 228.00 28720.000 22468.00 456.31 .72 .05 .00 1117.97 228.00 1 17DEC98 17:16:06 SECNO Q CWSEL DIFWSP DIFWSX DIFKWS TOPWID XLCH * 28890.000 7870.00 451.68 .00 .01 .00 1000.35 170.00 * 28890.000 13730.00 453.66 1.98 .02 .00 1035.13 170.00 * 28890.000 19957.00 455.62 1.95 .03 .00 1076.59 170.00 28890.000 22468.00 456.34 .72 .03 .00 1096.22 170.00 29124.000 7870.00 451.74 .00 .06 .00 847.35 234.00 29124.000 13730.00 453.72 1.98 .06 .00 953.59 234.00 29124.000 19957.00 455.71 1.99 .09 .00 1001.96 234.00 29124.000 22468.00 456.44 .72 .10 .00 1020.64 234.00 29651.000 7870.00 452.02 .00 .27 .00 776.45 527.00 29651.000 13730.00 454.04 2.02 .32 .00 855.55 527.00 29651.000 19957.00 456.00 1.96 .29 .00 988.39 527.00 29651.000 22468.00 456.71 .71 .28 .00 1095.11 527.00 29831.000 7870.00 452.08 .00 .07 .00 680.96 180.00 29831.000 13730.00 454.12 2.03 .08 .00 741.85 180.00 29831.000 19957.00 456.07 1.96 .07 .00 901.53 180.00 29831.000 22468.00 456.78 .71 .07 .00 958.69 180.00 * 30027.000 7870.00 452.12 .00 .04 .00 458.97 196.00 * 30027.000 13730.00 454.16 2.04 .05 .00 534.88 196.00 * 30027.000 19957.00 456.13 1.97 .06 .00 627.07 196.00 * 30027.000 22468.00 456.84 .71 .06 .00 672.99 196.00 30384.000 7870.00 452.32 .00 .20 .00 289.37 357.00 30384.000 13730.00 454.40 2.08' .24 .00 334.91 357.00 30384.000 19957.00 456.51 2.11 .38 .00 418.20 357.00 30384.000 22468.00 457.23 .72 .39 .00 451.82 357.00 * 30604.000 7870.00 452.52 .00 .20 .00 330.55 220.00 30604.000 13730.00 454.73 2.21 .33 .00 472.86 220.00 30604.000 19957.00 457.11 2.38 .61 .00 792.31 220.00 30604.000 22468.00 457.88 .77 .66 .00 873.94 220.00 Existing Condition HEC -2 Model - Page 33 PAGE 34 * 30958.000 7870.00 453.03 .00 .51 .00 802.08 354.00 * 30958.000 13730.00 455.42 2.39 .69 .00 921.67 354.00 * 30958.000 19957.00 457.70 2.28 .59 .00 1113.43 354.00 * 30958.000 22468.00 458.44 .74 .56 .00 1190.21 354.00 * 31335.000 7870.00 452.89 .00 -.14 .00 502.18 377.00 * 31335.000 13730.00 455.54 2.65 .12 .00 903.89 377.00 * 31335.000 19957.00 457.84 2.30 .14 .00 1022.41 377.00 * 31335.000 22468.00 458.58 .74 .14 .00 1069.58 377.00 * 32150.000 7870.00 453.73 .00 .84 .00 138.73 170.00 32150.000 13730.00 455.62 1.89 .08 .00 153.24 170.00 32150.000 19957.00 457.68 2.06 -.16 .00 314.35 170.00 32150.000 22468.00 458.35 .67 -.23 .00 562.78 170.00 1 17DEC98 17:16:06 SECNO Q CWSEL DIFWSP DIFWSX DIFWSS TOPWID XLCH 32200.000 7870.00 453.67 .00 -.06 .00 125.20 50.00 32200.000 13730.00 455.53 1.86 -.08 .00 144.19 50.00 32200.000 19957.00 457.59 2.06 -.08 .00 164.84 50.00 32200.000 22468.00 458.25 .66 -.10 .00 171.44 50.00 32230.000 7870.00 453.74 .00 .07 .00 125.89 50.00 32230.000 13730.00 455.72 1.98 .19 .00 146.07 50.00 32230.000 19957.00 457.92 2.20 .33 .00 168.14 50.00 32230.000 22468.00 458.67 .74 .41 .00 175.63 50.00 * 32305.000 7870.00 453.49 .00 -.25 .00 136.30 55.00 * 32305.000 13730.00 455.47 1.97 -.26 .00 186.18 55.00 * 32305.000 19957.00 457.86 2.39 -.06 .00 264.53 55.00 * 32305.000 22468.00 458.69 .83 .03 .00 290.17 55.00 * 32725.000 7870.00 456.75 .00 3.26 .00 544.11 420.00 * 32725.000 13730.00 460.17 3.42 4.70 .00 848.71 420.00 * 32725.000 19957.00 462.39 2.22 4.53 .00 1321.47 420.00 * 32725.000 22468.00 463.10 .71 4.41 .00 1378.38 420.00 33145.000 5645.00 457.33 .00 .58 .00 346.67 420.00 33145.000 10168.00 460.51 3.18 .34 .00 431.63 420.00 33145.000 14753.00 462.65 2.13 .26 .00 811.59 420.00 * 33145.000 16681.00 463.37 .72 .27 .00 940.92 420.00 33470.000 5645.00 457.48 .00 .15 .00 242.05 325.00 33470.000 10168.00 460.69 3.21 .18 .00 821.63 325.00 33470.000 14753.00 462.85 2.16 .20 .00 1061.51 325.00 33470.000 16681.00 463.59 .74 .22 .00 1065.72 325.00 PAGE 35 Existing Condition HEC -2 Model - Page 34 34260.000 5645.00 457.95 .00 .47 .00 396.37 790.00 34260.000 10168.00 461.25 3.30 .56 .00 553.29 790.00 34260.000 14753.00 463.31 2.06 .46 .00 744.58 790.00 34260.000 16681.00 464.01 .70 .42 .00 803.09 790.00 * 34850.000 5645.00 458.20 .00 .25 .00 117.68 590.00 * 34850.000 10168.00 461.45 3.25 .20 .00 513.64 590.00 * 34850.000 14753.00 463.57 2.12 .25 .00 781.21 590.00 * 34850.000 16681.00 464.29 .72 .28 .00 860.57 590.00 34950.000 5645.00 458.34 .00 .14 .00 118.36 100.00 34950.000 10168.00 461.70 3.36 .25 .00 516.95 100.00 34950.000 14753.00 463.83 2.13 .26 .00 785.94 100.00 34950.000 16681.00 464.52 .69 .23 .00 846.75 100.00 36970.000 5645.00 460.75 .00 2.41 .00 126.32 2020.00 36970.000 10168.00 464.90 4.15 3.20 .00 602.38 2020.00 36970.000 14753.00 466.76 1.86 2.93 .00 1217.81 2020.00 36970.000 16681.00 467.32 .56 2.80 .00 1254.86 2020.00 1 17DEC98 17:16:06 SECNO Q CWSEL DIFWSP DIFWSX DIFKWS TOPWID XLCH * 38200.000 5645.00 461.74 .00 .99 .00 627.33 1230.00 * 38200.000 10168.00 465.73 3.99 .83 .00 1169.62 1230.00 * 38200.000 14753.00 467.56 1.83 .80 .00 1268.93 1230.00 * 38200.000 16681.00 468.11 .54 .78 .00 1383.02 1230.00 39290.000 5645.00 462.05 .00 .31 .00 693.98 1090.00 39290.000 10168.00 465.91 3.86 .18 .00 976.38 1090.00 39290.000 14753.00 467.75 1.84 .19 .00 1063.08 1090.00 39290.000 16681.00 468.30 .55 .20 .00 1083.32 1090.00 * 39440.000 5645.00 461.96 .00 -.09 .00 103.84 150.00 * 39440.000 10168.00 465.73 3.77 -.18 .00 749.93 150.00 * 39440.000 14753.00 467.59 1.87 -.16 .00 913.05 150.00 * 39440.000 16681.00 468.15 .56 -.15 .00 952.77 150.00 39490.000 5645.00 462.23 .00 .27 .00 201.64 50.00 39490.000 10168.00 466.03 3.80' .30 .00 512.01 50.00 39490.000 14753.00 467.82 1.80 .23 .00 570.48 50.00 39490.000 16681.00 468.36 .54 .21 .00 582.36 50.00 39540.000 5645.00 462.12 .00 -.11 .00 104.54 50.00 39540.000 10168.00 465.92 3.81 -.10 .00 770.84 50.00 39540.000 14753.00 467.77 1.85 -.05 .00 926.38 50.00 39540.000 16681.00 468.33 .56 -.03 .00 964.19 50.00 PAGE 36 Existing Condition HEC -2 Model - Page 35 40650.000 5645.00 463.10 .00 .98 .00 125.23 1110.00 40650.000 10168.00 466.82 3.72 .89 .00 723.88 1110.00 40650.000 14753.00 468.60 1.79 .83 .00 841.76 1110.00 40650.000 16681.00 469.16 .56 .83 .00 862.84 1110.00 48000.000 2994.00 466.90 .00 3.81 .00 536.75 7350.00 48000.000 5761.00 469.87 2.97 3.06 .00 1412.66 7350.00 * 48000.000 9182.00 471.43 1.55 2.82 .00 1494.00 7350.00 * 48000.000 10837.00 471.98 .55 2.81 .00 1494.00 7350.00 51350.000 3166.00 467.49 .00 .58 .00 110.09 3350.00 * 51350.000 5796.00 470.77 3.28 .89 .00 901.47 3350.00 * 51350.000 9885.00 472.40 1.64 .98 .00 935.81 3350.00 * 51350.000 11721.00 472.99 .58 1.01 .00 938.82 3350.00 53350.000 3166.00 467.75 .00 .26 .00 177.20 2000.00 * 53350.000 5796.00 471.27 3.52 .50 .00 275.12 2000.00 53350.000 9885.00 473.09 1.82 .68 .00 782.02 2000.00 53350.000 11721.00 473.72 .63 .73 .00 907.73 2000.00 * 55590.000 2700.00 468.12 .00 .37 .00 81.69 2240.00 * 55590.000 6584.00 471.79 3.68 .53 .00 92.83 2240.00 * 55590.000 9918.00 474.01 2.21 .92 .00 733.12 2240.00 * 55590.000 12101.00 474.80 .79 1.08 .00 800.86 2240.00 1 17DEC98 17:16:06 PAGE 37 SECNO Q CWSEL DIFWSP DIFWSX DIFWSS TOPWID XLCH 56940.000 2700.00 468.68 .00 .57 .00 98.69 1350.00 56940.000 6584.00 473.13 4.44 1.34 .00 261.76 1350.00 56940.000 9918.00 475.42 2.29 1.41 .00 836.41 1350.00 56940.000 12101.00 476.27 .85 1.48 .00 1003.49 1350.00 1 17DEC98 17:16:06 SUMMARY OF ERRORS AND SPECIAL NOTES WARNING SECNO= 19330.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 19330.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 19330.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 19330.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PAGE 38 Existing Condition MEC - -2 Model - Page 36 WARNING SECNO= 19930.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 19930.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24400.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24400.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24400.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24400.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24700.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24700.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24700.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 24700.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 25530.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 25530.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 26830.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 26830.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 27165.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 27992.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 27992.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 28890.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 28890.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 28890.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30027.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30027.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30027.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30027.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30604.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30958.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30958.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30958.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 30958.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 31335.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 31335.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 31335.000 PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 31335.000 PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 32150.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 17DEC98 17:16:06 PAGE 39 Existing Condition HEC -2 Model - Page 37 WARNING SECNO= 32305.000 CAUTION SECNO= 32305.000 CAUTION SECNO= 32305.000 WARNING SECNO= 32305.000 WARNING SECNO= 32305.000 WARNING SECNO= 32725.000 WARNING SECNO= 32725.000 WARNING SECNO= 32725.000 WARNING SECNO= 32725.000 WARNING SECNO= 33145.000 WARNING SECNO= 34850.000 WARNING SECNO= 34850.000 WARNING SECNO= 34850.000 WARNING SECNO= 34850.000 WARNING SECNO= 38200.000 WARNING SECNO= 38200.000 WARNING SECNO= 38200.000 WARNING SECNO= 38200.000 WARNING SECNO= 39440.000 WARNING SECNO= 39440.000 WARNING SECNO= 39440.000 WARNING SECNO= 39440.000 WARNING SECNO= 48000.000 WARNING SECNO= 48000.000 WARNING SECNO= 51350.000 WARNING SECNO= 51350.000 WARNING SECNO= 51350.000 WARNING SECNO= 53350.000 WARNING SECNO= 55590.000 WARNING SECNO= 55590.000 WARNING SECNO= 55590.000 WARNING SECNO= 55590.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CRITICAL DEPTH ASSUMED PROFILE= 2 MINIMUM SPECIFIC ENERGY PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 3 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE PROFILE= 4 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE Existing Condition HEC -2 Model - Page 38 Appendix D HEC -RAS Conversion of Current Effective Model HEC -RAS Version 2.1 October 1997 U.S. Army Corp of Engineers Hydrologic Engineering Center 609 Second Street, Suite D Davis, California 95616 -4687 (916) 756 -1104 X X XXXXXX XXXX XXXX XX XXXX X X X X X X X X X X X X X X X X X X X XXXXXXX XXXX X XXX XXXX XXXXXX XXXX X X X X X X X X X X X X X X X X X X X X X XXXXXX XXXX X X X X XXXXX Output of the HEC -RAS Model Plan Ol = Existing Conditions PROJECT DATA Project Title: ABPE - FP Development Permit Project File : abpe.prj Run Date and Time: 1/23/99 1:35:25 PM Project in English units Project Description: Andrew Brown Jr. Community Park (East), City of Coppell, Texas. Coppell Aquatic and Recreation Center Project - Hydraulics and Permitting by Halff Associates, Inc. Floodplain Development Permit Application - Denton Creek Fully Developed Landuse Hydraulics Discharges: Fully Developed Landuse, 2, 10, 25, 100 -year floods. Plans: Plan 01 = existing conditions - Conversion to hec -ras 2.1 of base model DENCR- DW.dat. (G01) Plan 02 = Revised existing conditions - Per 1998 City of Coppell aerial topography. (G02) Plan 03 = Proposed conditions per Architects - Rec center only, no mitigation. (G03) Plan 04 = Proposed conditions per Halff - Rec center and mitigation (lake enlargement). (G04) Avo 16521 - 01/99 - SBH PLAN DATA Plan Title: Imported Plan 01 - Dencr- dw.dat Plan File : d: \avo \16521 \hec- 2 \fd \abpe.p01 Geometry Title: Imported Geom 01 - Dencr - dw.dat Geometry File : d: \avo \16521 \hec- 2 \fd \abpe.g01 Flow Title Imported Flow 01 - Dencr - dw.dat Flow File d: \avo \16521 \hec- 2 \fd \abpe.f01 Plan Summary Information: Number of: Cross Sections = 50 Mulitple Openings = 0 Culverts = 0 Inline Weirs = 0 Bridges = 1 Computational Information Water surface calculation tolerance = 0.01 Critical depth calculaton tolerance = 0.01 Maximum number of interations = 20 Maximum difference tolerance = 0.3 Flow tolerance factor = 0.001 Computational Flow Regime: Subcritical Flow Existing Condition HEC -RAS Model - Page 1 FLOW DATA Flow Title: Imported Flow 01 - Dencr- dw.dat Flow File : d: \avo \16521 \hec- 2 \fd \abpe.f01 Flow Data (cfs) River Reach RS 2 -year ultimatel0 -year ultimate25 -year ultimate100 -year ultimat RIVER -1 Reach -1 56940 2700 6584 9918 12101 RIVER -1 Reach -1 53350 3166 5796 9885 11721 RIVER -1 Reach -1 48000 2994 5761 9182 10837 RIVER -1 Reach -1 40650 5645 10168 14753 16681 RIVER -1 Reach -1 32725 7870 13730 19957 22468 RIVER -1 Reach -1 23800 7432 12847 20244 23083 Boundary Conditions River Reach Profile Upstream Downstream RIVER -1 Reach -1 2 -year ultimate Normal S = .00046 RIVER -1 Reach -1 10 -year ultimate Normal S = .00046 RIVER -1 Reach -1 25 -year ultimate Normal S = .00046 RIVER -1 Reach -1 100 -year ultimat Normal S = .00046 GEOMETRY DATA Geometry Title: Imported Geom 01 - Dencr - dw.dat Geometry File : d: \avo \16521 \hec- 2 \fd \abpe.g01 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 56940 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 33 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1070 499.4 1720 494.5 1850 490.8 2090 477.8 2330 474.5 2480 474.6 2820 472.4 2980 475.6 3120 473.6 3300 472 3640 475 3760 475 3850 473.4 3880 469 3920 469 3930 474 3980 475.8 4120 475.3 4290 472 4335 462 4340 454.5 4345 451 4355 449.2 4360 449 4370 452 4400 467 4415 474 4440 473 4445 473.8 4630 476 4760 500 4800 502 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1850 .052 4120 .055 4335 .045 4415 .058 4630 .06 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4335 4415 1250 1350 1250 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate Existing Condition HEC-RAS Model - Page 2 W.S. Elev (ft) 468.73 Element Left OB Channel Vel Head (ft) 0.13 Wt. n -Val. 0.055 0.045 E.G. Elev (ft) 468.86 Reach Len. (ft) 1250.00 1350.00 Crit W.S. (ft) 4440 Flow Area (sq ft) 101.89 879.11 E.G. Slope (ft /ft) 0.000317 Area (sq ft) 101.89 879.11 Q Total (cfs) 2700.00 Flow (cfs) 108.35 2591.65 Top Width (ft) 98.99 Top Width (ft) 30.28 68.71 Vel Total (ft /s) 2.75 Avg. Vel. (ft /s) 1.06 2.95 Max Chl Dpth (ft) 19.73 Hydr. Depth (ft) 3.36 12.80 Conv. Total (cfs) 151568.9 Conv. (cfs) 6082.5 145486.4 Length Wtd. (ft) 1347.99 Wetted Per. (ft) 31.02 78.35 Min Ch E1 (ft) 449.00 Shear (lb /sq ft) 0.07 0.22 Alpha 1.11 Stream Power (lb /ft s) 0.07 0.66 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 296.88 1501.68 C & E Loss (ft) 0.00 Cum SA (acres) 96.47 138.75 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch El (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #10 475.41 0.31 475.72 0.000745 12101.00 2175.35 2.37 26.41 443201.7 1314.58 449.00 3.57 1.10 0.00 -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB 0.053 1250.00 3561.04 3561.04 4313.25 1929.73 1.21 1.85 157973.9 1932.48 0.09 0.10 1745.88 558.64 Channel 0.045 1350.00 1384.02 1384.02 7670.04 80.00 5.54 17.30 280916.9 90.82 0.71 3.93 2250.45 192.12 Right OB 1250.00 282.12 135.74 Right OB 0.058 1250.00 167.24 167.24 117.71 165.62 0.70 1.01 4311.0 165.71 0.05 0.03 1388.12 339.00 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 55590 INPUT Description: FEMA CROSS SECTION Station Elevation Data Sta Elev Sta 1000 501.5 1100 1900 489 2000 3600 472 3900 4300 452.4 4325 4440 473 4480 Manning's n Values 480 Sta n Val Sta 1000 .04 1300 4480 .055 473 Bank Sta: Left Right 4250 num= 23 Elev Sta Elev Sta Elev Sta Elev 493 1300 487 1500 484 1550 486 480 2500 475 2600 475 3000 471 472 4000 473 4240 476 4250 470 452.4 4340 472 4390 474 4410 472.5 483 4540 502 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 1900 .06 4250 .045 4340 .06 Lengths: Left Channel Right Coeff Contr. Expan. Existing Condition HEC -RAS Model - Page 3 4250 4340 0.7 or greater 2000 2240 2200 .1 .3 Profile #100 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 474.27 W.S. Elev (ft) 468.17 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.060 0.045 474.62 E.G. Elev (ft) 468.33 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 3131.75 Flow Area (sq ft) 132.54 842.68 0.000952 E.G. Slope (ft /ft) 0.000494 Area (sq ft) 132.54 842.68 12101.00 Q Total (cfs) 2700.00 Flow (cfs) 118.05 2700.00 1630.46 Top Width (ft) 81.87 Top Width (ft) 105.07 81.87 2.60 Vel Total (ft /s) 3.20 Avg. Vel. (ft /s) 0.89 3.20 21.87 Max Chl Dpth (ft) 15.77 Hydr. Depth (ft) 1.26 10.29 392160.1 Conv. Total (cfs) 121502.4 Conv. (cfs) 3825.6 121502.4 2152.79 Length Wtd. (ft) 2221.63 Wetted Per. (ft) 105.33 92.35 452.40 Min Ch E1 (ft) 452.40 Shear (lb /sq ft) 0.07 0.28 3.30 Alpha 1.00 Stream Power (lb /ft s) 0.07 0.90 0.91 Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 295.42 1475.00 282.12 C & E Loss (ft) 0.03 Cum SA (acres) 96.04 136.42 135.74 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 474.27 Element Left OB Channel Right OB Vel Head (ft) 0.35 Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 474.62 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 476 Flow Area (sq ft) 3131.75 1381.14 132.54 E.G. Slope (ft /ft) 0.000952 Area (sq ft) 3131.75 1381.14 132.54 Q Total (cfs) 12101.00 Flow (cfs) 4024.03 7958.92 118.05 Top Width (ft) 1630.46 Top Width (ft) 1435.39 90.00 105.07 Vel Total (ft /s) 2.60 Avg. Vel. (ft /s) 1.28 5.76 0.89 Max Chl Dpth (ft) 21.87 Hydr. Depth (ft) 2.18 15.35 1.26 Conv. Total (cfs) 392160.1 Conv. (cfs) 130407.6 257926.8 3825.6 Length Wtd. (ft) 2152.79 Wetted Per. (ft) 1436.60 102.69 105.33 Min Ch E1 (ft) 452.40 Shear (lb /sq ft) 0.13 0.80 0.07 Alpha 3.30 Stream Power (lb /ft s) 0.17 4.61 0.07 Frctn Loss (ft) 0.91 Cum Volume (acre -ft) 1649.85 2207.60 1383.82 C & E Loss (ft) 0.07 Cum SA (acres) 510.35 189.49 335.12 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 53350 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 34 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 510 1200 498 1300 492 1850 479 1900 476 2100 474 2500 472.5 2750 474 3400 472 3450 467 3510 469 3700 472.5 3740 472.5 4000 470 4700 472 5170 475 5300 470 5360 473 5470 472 5570 456 5580 450 5590 448 5600 450 5620 450 5630 451 Existing Condition HEC -RAS Model - Page 4 5650 460 5670 467 5700 473 6100 478 6120 481.4 6170 490 Manning's n Values ultimate num= 6 Element Sta n Val Sta n Val Sta n Val 1000 .05 1300 .055 3400 .05 6120 .055 473.51 Element Bank Sta: Left Right Lengths: Left Channel Right 5570 5670 473.63 1650 2000 1750 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 467.81 Element Vel Head (ft) 0.05 Wt. n -Val. E.G. Elev (ft) 467.86 Reach Len. (ft) Crit W.S. (ft) 1.48 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000113 Area (sq ft) Q Total (cfs) 3166.00 Flow (cfs) Top Width (ft) 210.20 Top Width (ft) Vel Total (ft /s) 1.72 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.81 Hydr. Depth (ft) Conv. Total (cfs) 297397.4 Conv. (cfs) Length Wtd. (ft) 1975.18 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 1.16 Stream Power (lb /ft s) Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.00 Cum SA (acres) Warning - Divided flow computed for this cross- section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 473.51 Element Vel Head (ft) 0.12 Wt. n -Val. E.G. Elev (ft) 473.63 Reach Len. (ft) Crit W.S. (ft) 1385.88 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000235 Area (sq ft) Q Total (cfs) 11721.00 Flow (cfs) Top Width (ft) 3269.24 Top Width (ft) Vel Total (ft /s) 1.48 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.51 Hydr. Depth (ft) Conv. Total (cfs) 763807.4 Conv. (cfs) Length Wtd. (ft) 1866.59 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 3.56 Stream Power (lb /ft s) Frctn Loss (ft) 0.58 Cum Volume (acre -ft) C & E Loss (ft) 0.01 Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 51350 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 30 5900 472 6000 473 6230 510 Sta n Val Sta n Val 5570 .045 5670 .058 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 448.86 1385.88 1.64 448.86 1385.88 1.64 448.86 2716.90 0.24 106.16 100.00 4.04 1.00 1.96 0.15 4.23 13.86 0.40 42163.5 255211.4 22.6 107.15 105.23 4.12 0.03 0.09 0.00 0.03 0.18 0.00 285.12 1417.70 282.08 93.60 131.74 135.64 Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 5561.73 1956.29 411.89 5561.73 1956.29 411.89 4580.73 6956.57 183.71 2828.98 100.00 340.26 0.82 3.56 0.45 1.97 19.56 1.21 298506.3 453329.8 11971.3 2830.74 105.23 340.87 0.03 0.27 0.02 0.02 0.97 0.01 1450.27 2121.79 1370.07 412.46 184.60 323.87 Existing Condition HEC -RAS Model - Page 5 Sta Elev 1000 509 2030 479 3140 471.3 4000 470.5 4280 470.3 4615 482 Manning's n Values Sta n Val 1000 .05 Sta Elev 1100 504 2230 474.5 3400 469.6 4100 470.5 4315 471 4675 484 num= Sta n Val 1400 .05 4585 .06 Bank Sta: Left Right 4160 4515 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Sta Elev 1400 492.6 2470 472.8 3600 468.7 4160 470.3 4415 469.4 5215 498 6 Sta n Val 2930 .055 Sta Elev 1600 490.5 2690 472.5 3800 468.5 4200 446.5 4515 470.2 5330 500 Sta Elev 1850 487 2930 474 3870 468.5 4238 447.5 4585 483.8 5420 505.5 Sta n Val Sta n Val 4160 .045 4515 .058 Lengths: Left Channel Right 3600 3350 3700 Profile #2 -year ultimate 467.55 Element 0.07 Wt. n -Val. 467.62 Reach Len. (ft) Flow Area (sq ft) 0.000136 Area (sq ft) 3166.00 Flow (cfs) 110.31 Top Width (ft) 2.08 Avg. Vel. (ft /s) 21.05 Hydr. Depth (ft) 271951.8 Conv. (cfs) 3374.62 Wetted Per. (ft) 446.50 Shear (lb /sq ft) 1.00 Stream Power (lb /ft s) 0.57 Cum Volume (acre -ft) 0.00 Cum SA (acres) Profile #10 472.97 0.08 473.05 0.000420 11721.00 1837.83 1.80 26.47 572223.6 3486.84 446.50 1.52 0.96 0.01 -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 48000 INPUT Description: FEMA CROSS SECTION Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 3600.00 3350.00 3700.00 1523.46 1523.46 3166.00 110.31 2.08 13.81 271951.8 121.20 0.11 0.22 276.61 1350.91 282.05 91.59 126.92 135.56 Left OB Channel Right OB 0.055 0.045 0.058 3600.00 3350.00 3700.00 3655.00 2835.32 19.73 3655.00 2835.32 19.73 4218.85 7489.45 12.70 1468.58 355.00 14.25 1.15 2.64 0.64 2.49 7.99 1.38 205965.9 365637.6 620.1 1468.62 367.37 14.52 0.07 0.20 0.04 0.08 0.53 0.02 1275.71 2011.79 1361.40 331.06 174.16 316.75 Existing Condition HEC -RAS Model - Page 6 Station Elevation Data Sta Elev Sta 1300 503 145C 1710 465.6 174C 2355 459 237C 2405 448.5 241C 2830 465.5 306C 3380 487.8 3570 5020 498.4 5200 num= 32 Right OB 0.055 0.045 0.060 5700.00 Elev Sta Elev Sta Elev Sta Elev 490 1490 482.2 1540 482.5 1590 474 464.8 1880 464.5 1890 467.2 2330 469 457 2375 445.6 2385 446 2395 446.8 454 2430 462.3 2445 466.5 2500 471 467.8 3170 467.8 3240 475 3350 474.5 489 3980 491 4330 491 4740 488.5 501.5 1592.84 Top Width (ft) 751.77 75.00 766.07 Vel Total (ft /s) 6 Sta n Val Sta n Val Sta n Val 2330 .055 2370 .045 2445 .06 Manning's n Values num= Sta n Val Sta n Val 1300 .06 1540 .055 3350 .06 Bank Sta: Left Right 2370 2445 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Lengths: Left Channel Right 5700 7350 2900 Profile #2 -year ultimate 466.97 Element 0.08 Wt. n -Val. 467.05 Reach Len. (ft) Flow Area (sq ft) 0.000218 Area (sq ft) 2994.00 Flow (cfs) 549.52 Top Width (ft) 1.69 Avg. Vel. (ft /s) 21.37 Hydr. Depth (ft) 202570.3 Conv. (cfs) 7095.52 Wetted Per. (ft) 445.60 Shear (lb /sq ft) 1.74 Stream Power (lb /ft s) 3.44 Cum Volume (acre -ft) 0.03 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.055 0.045 0.060 5700.00 7350.00 2900.00 616.48 982.48 174.14 616.48 982.48 174.14 534.25 2408.06 51.69 233.64 75.00 240.89 0.87 2.45 0.30 2.64 13.10 0.72 36147.0 162926.1 3497.2 235.69 87.30 240.93 0.04 0.15 0.01 0.03 0.38 0.00 251.14 1254.55 274.65 81.94 119.79 125.33 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 472.02 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 472.08 Reach Len. (ft) 5700.00 7350.00 2900.00 Crit W.S. (ft) Flow Area (sq ft) 3731.10 1361.55 3212.88 E.G. Slope (ft /ft) 0.000189 Area (sq ft) 3731.10 1361.55 3212.88 Q Total (cfs) 10837.00 Flow (cfs) 4137.06 3857.17 2842.77 Top Width (ft) 1592.84 Top Width (ft) 751.77 75.00 766.07 Vel Total (ft /s) 1.30 Avg. Vel. (ft /s) 1.11 2.83 0.88 Max Chl Dpth (ft) 26.42 Hydr. Depth (ft) 4.96 18.15 4.19 Conv. Total (cfs) 788528.3 Conv. (cfs) 301023.3 280657.7 206847.3 Length Wtd. (ft) 5906.44 Wetted Per. (ft) 754.43 87.30 766.52 Min Ch El (ft) 445.60 Shear (lb /sq ft) 0.06 0.18 0.05 Alpha 2.07 Stream Power (lb /ft s) 0.06 0.52 0.04 Frctn Loss (ft) 2.71 Cum Volume (acre -ft) 970.50 1850.41 1224.11 C & E Loss (ft) 0.05 Cum SA (acres) 239.31 157.62 283.61 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 40650 INPUT Description: Existing Condition HEC-RAS Model - Page 7 FEMA CROSS SECTION Station Elevation Data num= 32 0.045 0.045 1400.00 1110.00 800.00 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 501 1200 497 1800 491.5 2400 489 2700 490.2 2950 488.5 3240 489 3750 487.8 4050 480 4180 473 4320 468.2 4500 465 4600 465 4630 465.5 4730 464.8 4770 451.2 4780 440 4800 440 4810 449 4815 457.8 4860 463 4870 467 5080 464 5120 465 5170 471 5410 482.5 5550 484.2 5790 483.8 5950 486.8 6130 495.5 6150 497.8 6200 499 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .06 1200 .055 3750 .06 4730 .045 4815 .045 5410 .04 Bank Sta: Left Right 4730 4815 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Lengths: Left Channel Right 1400 1110 800 Profile #2 -year ultimate 463.21 Element 0.37 Wt. n -Val. 463.58 Reach Len. (ft) Flow Area (sq ft) 0.000885 Area (sq ft) 5645.00 Flow (cfs) 125.84 Top Width (ft) 4.65 Avg. Vel. (ft /s) 23.21 Hydr. Depth (ft) 189735.3 Conv. (cfs) 1103.28 Wetted Per. (ft) 440.00 Shear (lb /sq ft) 1.10 Stream Power (lb /ft s) 0.97 Cum Volume (acre -ft) 0.01 Cum SA (acres) Profile #10 468.81 0.51 469.32 0.001134 16681.00 849.52 4.01 28.81 495365.9 1078.08 440.00 2.05 1.15 0.02 -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.060 0.045 0.045 1400.00 1110.00 800.00 1256.83 1088.46 126.44 1256.83 1088.46 126.44 2149.93 5400.76 244.24 427.78 80.32 45.52 1.71 4.96 1.93 2.94 13.55 2.78 63845.1 181526.0 8209.3 427.82 95.89 45.86 0.21 0.63 0.15 0.36 3.11 0.29 210.81 1079.84 264.65 66.65 106.69 115.80 Left OB Channel Right OB 0.060 0.045 0.045 1400.00 1110.00 800.00 1256.83 1560.81 1344.38 1256.83 1560.81 1344.38 2149.93 10779.01 3752.07 427.78 85.00 336.75 1.71 6.91 2.79 2.94 18.36 3.99 63845.1 320097.8 111422.9 427.82 100.84 338.08 0.21 1.10 0.28 0.36 7.57 0.79 644.16 1603.86 1072.41 162.14 144.12 246.90 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 Existing Condition HEC -R4S Model - Page 8 REACH: Reach -1 RS: 39540 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 34 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1050 491.6 1160 490 1330 487 1530 487 1800 484 2000 483 2100 480 2200 480 2480 477 3450 477 3610 477.3 3730 471.5 3790 465 3900 463 4000 464 4025 468 4040 464 4090 444 4110 442 4150 462.5 4210 468.5 4400 462.8 4600 464 4710 466.5 4880 481.5 4970 483 5080 484 5380 482 5460 482 5600 485 5730 488 5830 493.5 6040 500 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1050 .055 2000 .055 4040 .045 4150 .05 4710 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4040 4150 50 50 50 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.26 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.045 E.G. Elev (ft) 462.60 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) Flow Area (sq ft) 1202.28 E.G. Slope (ft /ft) 0.000871 Area (sq ft) 1202.28 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 105.18 Top Width (ft) 105.18 Vel Total (ft /s) 4.70 Avg. Vel. (ft /s) 4.70 Max Chl Dpth (ft) 20.26 Hydr. Depth (ft) 11.43 Conv. Total (cfs) 191279.6 Conv. (cfs) 191279.6 Length Wtd. (ft) 50.00 Wetted Per. (ft) 113.68 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.58 Alpha 1.00 Stream Power (lb /ft s) 2.70 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 210.81 1050.65 263.49 C & E Loss (ft) 0.06 Cum SA (acres) 66.65 104.32 115.38 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #10 467.70 0.46 468.16 0.001001 16681.00 920.91 3.79 25.70 527113.6 50.00 442.00 2.04 0.04 0.05 ) -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB Channel Right OB 0.055 0.045 0.050 50.00 50.00 50.00 929.28 1797.08 1673.40 929.28 1797.08 1673.40 1811.64 11479.59 3389.77 271.94 110.00 538.97 1.95 6.39 2.03 3.42 16.34 3.10 57247.1 362751.0 107115.5 272.88 118.90 539.39 0.21 0.94 0.19 0.42 6.04 0.39 609.03 1561.08 1044.70 150.90 141.64 238.86 Existing Condition HEC-RAS Model - Page 9 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39490 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 33 0.29 Wt. n -Val. E.G. Elev (ft) 468.06 Reach Len. (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1090 491.5 2380 479 2480 478.5 2670 478 3060 477.5 3175 478.2 3320 477 3470 477 3760 478 3782 465 3885 462.7 3895 462.3 3914 463 3965 464 3985 462.8 4030 467.5 4045 463 4155 454.3 4183 442 4193 442 4217 443.5 4257 462.5 4310 468.5 4505 478.5 4635 464 4670 478.2 4950 478.5 5380 483.5 5520 483.5 5940 495 6120 499 6200 500 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1090 .05 2380 .055 3760 .045 4670 .05 4950 .055 Bank Sta: Left Right 4030 4310 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Lengths: Left Channel Right Coeff Contr. Expan. 50 50 50 .1 .3 Profile #2- 462.37 0.14 462.51 0.000465 5645.00 207.19 3.04 20.37 261833.6 50.00 442.00 1.00 0.03 0.02 (ear ultimate Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB 0.045 50.00 0.12 0.12 0.01 3.48 0.07 0.03 0.4 3.48 0.00 0.00 210.81 66.65 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.78 Element Vel Head (ft) 0.29 Wt. n -Val. E.G. Elev (ft) 468.06 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000753 Area (sq ft) Q Total (cfs) 16681.00 Flow (cfs) Top Width (ft) 569.46 Top Width (ft) Vel Total (ft /s) 3.94 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.78 Hydr. Depth (ft) Conv. Total (cfs) 608080.3 Conv. (cfs) Left OB 0.045 50.00 984.79 984.79 2202.73 252.70 2.24 3.90 80297.1 Channel 0.045 50.00 1858.61 1858.61 5644.99 203.71 3.04 9.12 261833.2 210.91 0.26 0.78 1048.89 104.15 Channel 0.045 50.00 3163.61 3163.61 14367.14 273.60 4.54 11.56 523732.2 Right OB 50.00 263.49 115.38 Right OB 0.045 50.00 81.48 81.48 111.13 43.16 1.36 1.89 4051.0 Existing Condition HEC -RAS Model - Page 10 Length Wtd_ (ft) 50.00 Wetted Per. (ft) 253.79 281.82 44.11 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.18 0.53 0.09 Alpha Elev 1.19 Stream Power (lb /ft s) 0.41 2.40 0.12 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 607.93 1558.23 1043.69 C & E Loss (ft) 0.03 Cum SA (acres) 150.59 141.42 238.53 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39440 INPUT Description: CROSS SECTION 39440 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. * * * * * * * * ** END OF KH- PARCHE COORDINATION MODEL * * * * * * * * * * * * * * * * ** Station Elevation Data num= 34 4040 4150 0.045 150 150 280 CROSS SECTION OUTPUT Profile #2 -year ultimate Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1050 491.6 1160 490 1330 487 1530 487 1800 484 2000 483 2100 480 2200 480 2480 477 3450 477 3610 477.3 3730 471.5 3790 465 3900 463 4000 464 4025 468 4040 464 4090 444 4110 442 4150 462.5 4210 468.5 4400 462.8 4600 464 4710 466.5 4880 481.5 4970 483 5080 484 5380 482 5460 482 5600 485 5730 488 5830 493.5 6040 500 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .06 1050 .06 2000 .055 4040 .045 4150 .06 4710 .055 Bank Sta: Left Right Lengths: Left Channel Right 4040 4150 0.045 150 150 280 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.11 Element Vel Head (ft) 0.35 Wt. n -Val. E.G. Elev (ft) 462.46 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000903 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 104.50 Top Width (ft) Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) Max Chl Dpth (ft) 20.11 Hydr. Depth (ft) Conv. Total (cfs) 187882.9 Conv. (cfs) Length Wtd. (ft) 166.13 Wetted Per. (ft) Min Ch E1 (ft) 442.00 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.09 Cum Volume (acre -ft) C & E Loss (ft) 0.08 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 150.00 150.00 280.00 1186.30 1186.30 5645.00 104.50 4.76 11.35 187882.9 112.94 0.59 2.82 210.81 1047.15 263.49 66.65 103.97 115.38 Existing Condition HEC -RAS Model - Page 11 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat Sta Elev Sta Elev W.S. Elev (ft) 467.43 Element Left OB Channel Right OB Vel Head (ft) 0.56 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 467.99 Reach Len. (ft) 150.00 150.00 280.00 Crit W.S. (ft) 464 Flow Area (sq ft) 856.15 1767.21 1529.06 E.G. Slope (ft /ft) 0.001200 Area (sq ft) 856.15 1767.21 1529.06 Q Total (cfs) 16681.00 Flow (cfs) 1752.48 12221.49 2707.03 Top Width (ft) 900.84 Top Width (ft) 266.71 110.00 524.13 Vel Total (ft /s) 4.02 Avg. Vel. (ft /s) 2.05 6.92 1.77 Max Chl Dpth (ft) 25.43 Hydr. Depth (ft) 3.21 16.07 2.92 Conv. Total (cfs) 481475.7 Conv. (cfs) 50583.2 352757.7 78134.9 Length Wtd. (ft) 189.43 Wetted Per. (ft) 267.59 118.90 524.51 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.24 1.11 0.22 Alpha 2.23 Stream Power (lb /ft s) 0.49 7.70 0.39 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 606.87 1555.40 1042.77 C & E Loss (ft) 0.14 Cum SA (acres) 150.30 141.20 238.20 Warning - Divided flow computed for this cross- section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39290 INPUT Description: Station Elevation Data num= 30 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 474 1030 472 1070 470 1115 468 1200 466 1275 464 1320 462 1345 460.3 1400 462 1450 464 1525 464 1540 462 1550 460 1560 450 1565 445 1580 441.88 1600 445 1615 450 1675 460 1710 460 1750 458 1950 458 2000 460 2150 462 2175 464 2180 466 2190 468 2200 470 2240 472 2310 474 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1275 .055 1540 .045 1675 .055 2175 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1525 1675 980 1090 1110 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.20 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.055 0.045 0.055 E.G. Elev (ft) 462.30 Reach Len. (ft) 980.00 1090.00 1110.00 Crit W.S. (ft) Flow Area (sq ft) 84.60 1466.21 1383.36 E.G. Slope (ft /ft) 0.000340 Area (sq ft) 84.60 1466.21 1383.36 Q Total (cfs) 5645.00 Flow (cfs) 40.64 4203.15 1401.21 Top Width (ft) 703.23 Top Width (ft) 89.31 136.47 477.45 Vel Total (ft /s) 1.92 Avg. Vel. (ft /s) 0.48 2.87 1.01 Max Chl Dpth (ft) 20.32 Hydr. Depth (ft) 0.95 10.74 2.90 Conv. Total (cfs) 305961.3 Conv. (cfs) 2202.8 227812.3 75946.1 Length Wtd. (ft) 1095.50 Wetted Per. (ft) 89.40 145.10 477.56 Min Ch E1 (ft) 441.88 Shear (lb /sq ft) 0.02 0.21 0.06 Alpha 1.72 Stream Power (lb /ft s) 0.01 0.62 0.06 Frctn Loss (ft) 0.35 Cum Volume (acre -ft) 210.66 1042.58 259.04 C & E Loss (ft) 0.01 Cum SA (acres) 66.49 103.55 113.84 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.66 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.054 0.045 0.055 Existing Condition HEC -RAS Model - Page 12 E.G. Elev (ft) 467.76 Reach Len. (ft) 980.00 1090.00 1110.00 Crit W.S. (ft) Sta Elev Flow Area (sq ft) 1494.19 2272.89 4112.76 E.G. Slope (ft /ft) 0.000272 Area (sq ft) 1494.19 2272.89 4112.76 Q Total (cfs) 16681.00 Flow (cfs) 1782.47 7487.26 7411.27 Top Width (ft) 1058.63 Top Width (ft) 395.35 150.00 513.28 Vel Total (ft /s) 2.12 Avg. Vel. (ft /s) 1.19 3.29 1.80 Max Chl Dpth (ft) 25.78 Hydr. Depth (ft) 3.78 15.15 8.01 Conv. Total (cfs) 1012256.3 Conv. (cfs) 108166.1 454350.8 449739.3 Length Wtd. (ft) 1083.42 Wetted Per. (ft) 395.56 158.75 514.01 Min Ch E1 (ft) 441.88 Shear (lb /sq ft) 0.06 0.24 0.14 Alpha 1.44 Stream Power (lb /ft s) 0.08 0.80 0.24 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 602.83 1548.45 1024.63 C & E Loss (ft) 0.01 Cum SA (acres) 149.16 140.75 234.87 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 38200 INPUT Description: Station Elevation Data num= 49 Left OB Channel Right OB Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev E.G. Elev (ft) 1000 473.2 1250 472 1360 470 1400 468 1450 468 1540 468 1570 466 1600 464 1650 462 1760 461 Area (sq ft) 1930 462 2050 464 2070 466 2100 467.4 2120 466 2125 464 2135 462 2142 460 2160 450 2170 444 550.09 2185 441 2200 444 2215 450 2255 460 2270 462 2.92 2295 462 2340 462 2390 464 2440 464 2460 462 2480 460 2500 458 2515 456 2530 454 2535 452 2560 451 2580 452 2600 454 2620 456 2670 458 2720 460 2755 462 2780 464 2800 466 2820 468 2840 470 2860 472 2950 474 3070 474.4 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1540 .06 2100 .045 2270 .055 2755 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2100 2270 1150 1230 950 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 461.86 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 461.94 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 104.22 1369.58 1492.28 E.G. Slope (ft /ft) 0.000298 Area (sq ft) 104.22 1369.58 1492.28 Q Total (cfs) 5645.00 Flow (cfs) 25.46 3555.07 2064.47 Top Width (ft) 666.30 Top Width (ft) 241.58 133.49 291.23 Vel Total (ft /s) 1.90 Avg. Vel. (ft /s) 0.24 2.60 1.38 Max Chl Dpth (ft) 20.86 Hydr. Depth (ft) 0.43 10.26 5.12 Conv. Total (cfs) 326743.9 Conv. (cfs) 1473.5 205774.7 119495.7 Length Wtd. (ft) 1168.36 Wetted Per. (ft) 241.59 141.11 292.45 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.01 0.18 0.10 Alpha 1.36 Stream Power (lb /ft s) 0.00 0.47 0.13 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 208.54 1007.10 222.40 C & E Loss (ft) 0.03 Cum SA (acres) 62.77 100.18 104.05 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.38 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 467.45 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 2541.99 2182.77 4135.75 E.G. Slope (ft /ft) 0.000277 Area (sq ft) 2541.99 2182.77 4135.75 Q Total (cfs) 16681.00 Flow (cfs) 2904.88 6379.07 7397.06 Top Width (ft) 1263.49 Top Width (ft) 550.09 169.64 543.75 Vel Total (ft /s) 1.88 Avg. Vel. (ft /s) 1.14 2.92 1.79 Existing Condition HEC -RAS Model - Page 13 Max Chl Dpth (ft) 26.38 Hydr. Depth (ft) 4.62 12.87 7.61 Conv. Total (cfs) 1002553.1 Conv. (cfs) 174587.6 383391.4 444574.1 Length Wtd. (ft) 1101.75 Wetted Per. (ft) 550.40 177.92 545.37 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.08 0.21 0.13 Alpha 1.39 Stream Power (lb /ft s) 0.09 0.62 0.23 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 557.42 1492.70 919.54 C & E Loss (ft) 0.02 Cum SA (acres) 138.52 136.75 221.40 Warning - Divided flow computed for this cross - section. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 36970 INPUT Description: * * * ** SECTION "D" * * * ** CROSS SECTION 36970 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. Station Elevation Data Sta Elev Sta 1000 483 1050 1810 473 2155 2900 465 2930 2970 442.7 2975 3140 466.5 3280 3670 463 3740 4070 473 Manning's n Values Sta n Val Sta 1000 .06 1200 3960 .05 Bank Sta: Left Right 2900 3060 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) num= 31 Elev Sta Elev Sta Elev Sta Elev 477.5 1200 475 1430 475 1510 473.8 474 2360 469 2560 466 2850 466 458 2930 453.5 2930 444 2937 440 450.6 2985 454 2990 456 3060 465 465 3400 462 3430 462 3570 464.5 459 3870 459 3960 461.5 3990 463.5 num= 6 n Val Sta n Val Sta n Val Sta n Val .05 2155 .06 2900 .045 3060 .06 Lengths: Left Channel Right 2020 2020 2020 Profile #2 -year ultimate 460.93 Element 0.34 Wt. n -Val. 461.27 Reach Len. (ft) Flow Area (sq ft) 0.001308 Area (sq ft) 5645.00 Flow (cfs) 344.48 Top Width (ft) 3.94 Avg. Vel. (ft /s) 20.93 Hydr. Depth (ft) 156059.3 Conv. (cfs) 2020.00 Wetted Per. (ft) 440.00 Shear (lb /sq ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.060 2020.00 2020.00 2020.00 1079.46 351.68 1079.46 351.68 5231.18 413.82 110.96 233.52 4.85 1.18 9.73 1.51 144618.9 11440.4 132.08 233.60 0.67 0.12 Existing Condition HEC -RAS Model - Page 14 Alpha 1.41 Stream Power (lb /ft s) 3.24 0.14 Frctn Loss (ft) 2.51 Cum Volume (acre -ft) 207.16 972.52 202.30 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 96.73 98.33 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 466.66 Element Left OB Channel Right OB Vel Head (ft) 0.25 Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 466.91 Reach Len. (ft) 2020.00 2020.00 2020.00 Crit W.S. (ft) Flow Area (sq ft) 264.24 1895.93 3624.14 E.G. Slope (ft /ft) 0.001013 Area (sq ft) 264.24 1895.93 3624.14 Q Total (cfs) 16681.00 Flow (cfs) 162.35 9511.01 7007.65 Top width (ft) 1500.67 Top Width (ft) 384.06 160.00 956.62 Vel Total (ft /s) 2.88 Avg. Vel. (ft /s) 0.61 5.02 1.93 Max Chl Dpth (ft) 26.66 Hydr. Depth (ft) 0.69 11.85 3.79 Conv. Total (cfs) 524008.9 Conv. (cfs) 5099.9 298774.2 220134.8 Length Wtd. (ft) 2020.00 Wetted Per. (ft) 384.07 181.85 957.11 Min Ch E1 (ft) 440.00 Shear (lb /sq ft) 0.04 0.66 0.24 Alpha 1.91 Stream Power (lb /ft s) 0.03 3.31 0.46 Frctn Loss (ft) 1.73 Cum Volume (acre -ft) 520.38 1435.11 834.92 C & E Loss (ft) 0.03 Cum SA (acres) 126.19 132.10 205.04 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34950 INPUT Description: CROSS SECTION 34950 FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL MODIFIED TO ELIMINATE FLOW AREAS IN COTTONWOOD BRANCH AT SOUTH END OF THE CROSS SECTION & INEFFECTIVE FLOW AT NORTH END. Station Elevation Data Sta Elev St 620 470 62 1000 463.48 106 2038 462 221 2341 455 238 2410 440 242 2520 465 2532 2610 470 Manning's n Values Sta n Val St 620 .05 1355 Bank Sta: Left Right 2310 2520 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) num= 31 Sta Elev Sta Elev Sta Elev Sta 0 465 740 464 760 463 930 2 463 1190 462 1355 461 2005 0 463 2270 464 2310 464.3 2338 0 450 2388 445 2390 440 2394 8 445 2435 450 2442 455 2465 466 2550 467 2570 468 2590 num= 5 Sta n Val Sta n Val Sta n Val Sta .055 2005 .06 2310 .045 2520 Lengths: Left Channel Right Coeff Contr. 110 100 90 .3 Profile #2 -year ultimate 458.39 Element Left OB 0.37 Wt. n -Val. 458.76 Reach Len. (ft) 110.00 Flow Area (sq ft) Elev 463 461 460 439.3 460 469 n Val .055 Expan. .5 Channel Right OB 0.045 100.00 90.00 1156.60 Existing Condition HEC-R4S Model - Page 15 E.G. Slope (ft /ft) 0.001185 Area (sq ft) 1156.60 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 118.62 Top Width (ft) 118.62 Vel Total (ft /s) 4.88 Avg. Vel. (ft /s) 4.88 Max Chl Dpth (ft) 19.09 Hydr. Depth (ft) 9.75 Conv. Total (cfs) 163978.2 Conv. (cfs) 163978.2 Length Wtd. (ft) 100.00 Wetted Per. (ft) 130.00 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.66 Alpha 1.00 Stream Power (lb /ft s) 3.21 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 207.16 920.68 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 91.40 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) 194.14 92.91 Right OB 90.00 750.89 182.86 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34850 INPUT Description: Profile #10 464.99 0.16 465.16 0.000732 16681.00 1899.26 2.37 25.69 616338.9 103.42 439.30 1.84 0.11 0.09 -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) 32 Right Coeff Contr. Expan. 520 590 640 Sta Elev Sta Elev Sta Elev 660 461 1005 461 1038 462 1310 464.3 1338 460 1341 455 1390 440 1394 439.3 1410 440 1442 455 1465 460 1520 465 1570 468 1590 469 1610 470 1671 473 1691 474 1710 475 6 Sta n Val Sta n Val Sta n Val 1005 .06 1310 .045 1520 .055 Left OB 0.054 110.00 4819.73 4819.73 7597.64 1689.32 1.58 2.85 280722.0 1689.39 0.13 0.21 402.50 78.12 Channel 0.045 100.00 2205.61 2205.61 9083.36 209.94 4.12 10.51 335616.9 222.96 0.45 1.86 1340.01 123.52 CROSS SECTION 34850. FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL. NOT MODIFIED Station Elevation Data num= Sta Elev Sta Elev 0 465 648 465 1210 463 1270 464 1380 450 1388 445 1428 445 1435 450 1532 466 1550 467 1630 471 1648 472 1740 476 1760 477.79 Manning's n Values num= Sta n Val Sta n Val 0 .05 648 .055 1671 .05 Bank Sta: Left Right 1310 1520 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) Lengths: Left Channel Right Coeff Contr. Expan. 520 590 640 .3 .5 Profile #2 -year ultimate 458.25 Element Left OB Channel Right OB 0.38 Wt. n -Val. 0.045 458.63 Reach Len. (ft) 520.00 590.00 640.00 Flow Area (sq ft) 1140.73 Existing Condition HEC -RAS Model - Page 16 E.G. Slope (ft /ft) 0.001231 Area (sq ft) 1140.73 Q Total (cfs) 5645.00 Flow (cfs) Elev 5645.00 Elev Top Width (ft) 117.92 Top Width (ft) 853 117.92 868 Vel Total (ft /s) 4.95 Avg. Vel. (ft /s) 451.5 4.95 452 Max Chl Dpth (ft) 18.95 Hydr. Depth (ft) 461.64 9.67 1304 Conv. Total (cfs) 160894.9 Conv. (cfs) 1328 160894.9 439 Length Wtd. (ft) 590.00 Wetted Per. (ft) 439 129.22 440 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 1392 0.68 1415 Alpha 1.00 Stream Power (lb /ft s) 464 3.36 461 Frctn Loss (ft) 0.40 Cum Volume (acre -ft) 207.16 918.04 194.14 C & E Loss (ft) 0.15 Cum SA (acres) 59.58 91.13 92.91 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.49 Element Left OB Channel Right OB Vel Head (ft) 0.47 Wt. n -Val. 0.056 0.045 E.G. Elev (ft) 464.95 Reach Len. (ft) 520.00 590.00 640.00 Crit W.S. (ft) Flow Area (sq ft) 1732.98 2100.11 E.G. Slope (ft /ft) 0.001676 Area (sq ft) 1732.98 2100.11 Q Total (cfs) 16681.00 Flow (cfs) 3803.04 12877.96 Top Width (ft) 864.79 Top Width (ft) 660.46 204.34 Vel Total (ft /s) 4.35 Avg. Vel. (ft /s) 2.19 6.13 Max Chl Dpth (ft) 25.19 Hydr. Depth (ft) 2.62 10.28 Conv. Total (cfs) 407512.8 Conv. (cfs) 92907.4 314605.4 Length Wtd. (ft) 582.40 Wetted Per. (ft) 661.05 217.34 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.27 1.01 Alpha 1.59 Stream Power (lb /ft s) 0.60 6.20 Frctn Loss (ft) 0.43 Cum Volume (acre -ft) 394.23 1335.07 750.89 C & E Loss (ft) 0.17 Cum SA (acres) 75.15 123.04 182.86 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34260 INPUT Description: CROSS SECTIO Station Elevation Data Sta Elev Sta 0 470 0 1000 452 1037.5 1280 461 1291 1337 440 1340 1363 445 1372 1445 462 1472 1810.5 464.5 2230 Manning's n Values num= 32 Elev Sta Elev Sta Elev Sta Elev 465 853 465 868 461.2 900.8 453 451.5 1075 452 1166.4 453 1201 461.64 460 1304 455 1319 450 1328 445 439 1345 438.8 1350 439 1357 440 450 1381 455 1392 460 1415 461 463 1520 464 1620 461 1800 461 465.5 num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 0 .055 1201 .06 1280 .045 1392 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr 868 1520 830 790 250 .3 Blocked Obstructions num= 1 Sta L Sta R Elev 1660 2230 CROSS SECTION OUTPUT Profile #2 -year ultimate Expan. .5 Existing Condition HEC -RAS Model - Page 17 W.S. Elev (ft) 458.01 Element Vel Head (ft) 0.07 Wt. n -Val. E.G. Elev (ft) 458.08 Reach Len. (ft) Crit W.S. (ft) 2571.32 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000427 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 397.12 Top Width (ft) Vel Total (ft /s) 2.20 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.21 Hydr. Depth (ft) Conv. Total (cfs) 273117.9 Conv. (cfs) Length Wtd. (ft) 790.00 Wetted Per. (ft) Min Ch E1 (ft) 438.80 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.37 Cum Volume (acre -ft) C & E Loss (ft) 0.03 Cum SA (acres) Warning - Divided flow computed for this cross- section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.22 Element Vel Head (ft) 0.13 Wt. n -Val. E.G. Elev (ft) 464.35 Reach Len. (ft) Crit W.S. (ft) 2571.32 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000418 Area (sq ft) Q Total (cfs) 16681.00 Flow (cfs) Top Width (ft) 803.93 Top Width (ft) Vel Total (ft /s) 2.76 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.42 Hydr. Depth (ft) Conv. Total (cfs) 815912.4 Conv. (cfs) Length Wtd. (ft) 750.91 Wetted Per. (ft) Min Ch E1 (ft) 438.80 Shear (lb /sq ft) Alpha 1.06 Stream Power (lb /ft s) Frctn Loss (ft) 0.36 Cum Volume (acre -ft) C & E Loss (ft) 0.01 Cum SA (acres) CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33470 INPUT Description: CROSS SECTION 33470 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. ELIMINATED GROUND POINTS AT SECTION 33470. SOUTH OF 2770. TO BETTER MODEL EXPANDING FLOW FROM UPSTREAM REACH AT HIGH DISCHARGES. Left OB Channel Right OB 0.055 0.050 0.055 830.00 790.00 250.00 18.04 2571.32 301.26 18.04 2571.32 301.26 12.85 5645.00 273.11 11.93 397.12 140.00 0.71 2.20 0.91 1.51 6.47 2.15 628.8 273117.9 13358.6 12.31 407.63 143.27 0.04 0.17 0.05 0.03 0.37 0.05 207.16 892.90 194.14 59.58 87.64 92.91 Left OB Channel Right OB 0.055 0.051 0.055 830.00 790.00 250.00 18.04 5731.39 301.26 18.04 5731.39 301.26 12.85 16395.03 273.11 11.93 652.00 140.00 0.71 2.86 0.91 1.51 8.79 2.15 628.8 801925.0 13358.6 12.31 664.26 143.27 0.04 0.23 0.05 0.03 0.64 0.05 383.78 1282.03 748.68 71.14 117.25 181.83 Existing Condition HEC -RAS Model - Page 18 Station Elevation Data num= 38 Left OB Channel Right OB Vel Head (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev Reach Len. (ft) 0 470 0 465 958 465 959 465 960 465 4055.90 976 459.72 1010 460 1135 460.2 1220 453 1310 462 Q Total (cfs) 1360 462 1382 461 1391 460 1419 455 1432 450 Top Width (ft) 1432 445 1460 440 1465 439 1475 439.5 1485 439 3.33 1491 440 1510 445 1520 450 1534 455 1565 460 Conv. Total (cfs) 1580 461 1592 462 1603 463 1609 460 1880 460 Wetted Per. (ft) 1930 461 2040 461 2198 461 2375 461 2550 460.1 0.30 2561 463.8 2990 464.8 3160 465.2 0.19 0.99 0.18 Frctn Loss (ft) Manning's n Values Cum Volume (acre -ft) num= 4 743.50 C & E Loss (ft) 0.00 Cum SA (acres) Sta n Val Sta n Val Sta n Val Sta n Val 0 .055 1310 .06 1360 .045 1603 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1135 1603 315 325 260 .3 .5 Blocked Obstructions num= 1 Sta L Sta R Elev 2030 3160 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 457.53 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.045 E.G. Elev (ft) 457.69 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 1767.14 E.G. Slope (ft /ft) 0.000523 Area (sq ft) 1767.14 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 243.52 Top Width (ft) 243.52 Vel Total (ft /s) 3.19 Avg. Vel. (ft /s) 3.19 Max Chl Dpth (ft) 18.53 Hydr. Depth (ft) 7.26 Conv. Total (cfs) 246837.1 Conv. (cfs) 246837.1 Length Wtd. (ft) 325.00 Wetted Per. (ft) 253.64 Min Ch E1 (ft) 439.00 Shear (lb /sq ft) 0.23 Alpha 1.00 Stream Power (lb /ft s) 0.73 Frctn Loss (ft) 0.19 Cum Volume (acre -ft) 207.16 853.56 194.14 C & E Loss (ft) 0.03 Cum SA (acres) 59.58 81.83 92.91 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.83 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 0.055 0.047 0.055 E.G. Elev (ft) 463.98 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 627.54 4055.90 1503.20 E.G. Slope (ft /ft) 0.000561 Area (sq ft) 627.54 4055.90 1503.20 Q Total (cfs) 16681.00 Flow (cfs) 951.04 13516.64 2213.32 Top Width (ft) 1066.47 Top Width (ft) 171.47 468.00 427.00 Vel Total (ft /s) 2.70 Avg. Vel. (ft /s) 1.52 3.33 1.47 Max Chl Dpth (ft) 24.83 Hydr. Depth (ft) 3.66 8.67 3.52 Conv. Total (cfs) 704405.1 Conv. (cfs) 40160.7 570780.4 93464.0 Length Wtd. (ft) 318.58 Wetted Per. (ft) 172.13 479.07 430.55 Min Ch El (ft) 439.00 Shear (lb /sq ft) 0.13 0.30 0.12 Alpha 1.30 Stream Power (lb /ft s) 0.19 0.99 0.18 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 377.63 1193.28 743.50 C & E Loss (ft) 0.00 Cum SA (acres) 69.39 107.09 180.20 Existing Condition HEC -RAS Model - Page 19 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33145 INPUT Description: CROSS SECTION 33145 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. BEGIN SEPARA Elev Sta Elev 2315 Station Elevation Data num= 39 451.75 Sta Elev Sta Elev Sta Elev 825 470 825 465 2305.9 465 2390 460.64 2420.6 453 2485 452 2620 453 2660 463 2752 463 2795 460 2810 455 2825 450 2852 439 2862 438.4 2870 439 2898 450 2903 455 2930 460 2960 463 2969 463 3005 462 3800 460 4300 460 4310.8 463.6 Manning's n Values 207.16 num= 5 Cum SA (acres) Sta n Val Sta n Val Sta n Val 825 .05 2305.9 .055 2420.6 .06 Bank Sta: Left Right Lengths: Left Channel 2390 2960 385 420 Blocked Obstructions num= 1 Sta Elev Sta Elev 2315 460.33 2350.1 460.55 2515 451.75 2545 452 2779 462 2789 461 2835 445 2849 440 2878 440 2889 445 2938 461 2951 462 3039 461 3750 461 4435 469 E.G. Slope (ft /ft) Top Width (ft) Sta n Val Sta 2752 .045 2960 Right Coeff Contr. 290 .3 Sta L Sta R Elev this cross - section. 3250 4435 Note - Manning's n values were composited to a single value in the main CROSS SECTION OUTPUT Profile #2 -year ultimate Profile #100 W.S. Elev (ft) 457.36 Element Left OB Vel Head (ft) 0.09 Wt. n -Val. Channel E.G. Elev (ft) 457.46 Reach Len. (ft) 385.00 Crit W.S. (ft) E.G. Elev (ft) Flow Area (sq ft) Reach Len. (ft) E.G. Slope (ft /ft) 0.000688 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) E.G. Slope (ft /ft) Top Width (ft) 347.21 Top Width (ft) 4909.33 Vel Total (ft /s) 2.46 Avg. Vel. (ft /s) 376.01 Max Chl Dpth (ft) 18.96 Hydr. Depth (ft) Top Width (ft) Conv. Total (cfs) 215223.5 Conv. (cfs) 2.86 Length Wtd. (ft) 413.36 Wetted Per. (ft) Max Chl Dpth (ft) Min Ch E1 (ft) 438.40 Shear (lb /sq ft) 8.61 Alpha 1.00 Stream Power (lb /ft s) 13563.3 Frctn Loss (ft) 0.36 Cum Volume (acre -ft) 207.16 C & E Loss (ft) 0.05 Cum SA (acres) 59.58 n Val .055 Expan. .5 Channel 0.055 420.00 2296.17 2296.17 5645.00 347.21 2.46 6.61 215223.5 356.47 0.28 0.68 838.40 79.63 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.63 Element Left OB Channel Vel Head (ft) 0.14 Wt. n -Val. 0.055 0.054 E.G. Elev (ft) 463.77 Reach Len. (ft) 385.00 420.00 Crit W.S. (ft) Flow Area (sq ft) 243.47 4909.33 E.G. Slope (ft /ft) 0.000769 Area (sq ft) 243.47 4909.33 Q Total (cfs) 16681.00 Flow (cfs) 376.01 15426.91 Top Width (ft) 941.43 Top Width (ft) 81.43 570.00 Vel Total (ft /s) 2.86 Avg. Vel. (ft /s) 1.54 3.14 Max Chl Dpth (ft) 25.23 Hydr. Depth (ft) 2.99 8.61 Conv. Total (cfs) 601707.0 Conv. (cfs) 13563.3 556470.1 Length Wtd. (ft) 393.69 Wetted Per. (ft) 82.22 581.34 Min Ch El (ft) 438.40 Shear (lb /sq ft) 0.14 0.41 Alpha 1.13 Stream Power (lb /ft s) 0.22 1.27 Right OB 290.00 194.14 92.91 Right OB 0.055 290.00 672.95 672.95 878.08 290.00 1.30 2.32 31673.6 292.66 0.11 0.14 Existing Condition HEGRAS Model - Page 20 Frctn Loss (ft) 0.25 Cum Volume (acre -ft) 374.48 1159.84 737.00 C & E Loss (ft) 0.00 Cum SA (acres) 68.47 103.22 178.06 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32725 INPUT Description: CROSS SECTIO Station Elevation Data Sta Elev Sta 0 470 C 1285 461 156E 1940 463 196C 2025 440 203C 2070 445 2080 2165 461 2300 3350 459 3605 3670 459 3695.5 Manning's n Values Sta n Val Sta 0 .05 1273 3670 .05 Bank Sta: Left Right 1940 2150 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 37 Right OB 0.060 0.045 0.055 380.00 Elev Sta Elev Sta Elev Sta Elev 465 90 464 180 465 1273 465 461 1592 453 1842 453 1895 464 460 1981 455 2002 450 2018 445 439 2040 438.2 2050 439 2053 440 450 2090 455 2124 460 2150 461 470 2700 470 2805 470 2885 470 455 3615 452 3628 455 3632 459 467.5 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 1568 .06 1940 .045 2150 .055 Lengths: Left Channel Right 380 420 520 Profile #2 -year ultimate 456.78 Element 0.27 Wt. n -Val. 457.05 Reach Len. (ft) Flow Area (sq ft) 0.001059 Area (sq ft) 7870.00 Flow (cfs) 546.37 Top Width (ft) 3.26 Avg. Vel. (ft /s) 18.58 Hydr. Depth (ft) 241869.2 Conv. (cfs) 417.69 Wetted Per. (ft) 438.20 Shear (lb /sq ft) 1.61 Stream Power (lb /ft s) 0.99 Cum Volume (acre -ft) 0.51 Cum SA (acres) Coeff Contr. Expan. .3 .5 Left OB Channel Right OB 0.060 0.045 0.055 380.00 420.00 520.00 1000.79 1235.92 177.99 1000.79 1235.92 177.99 1882.80 5803.38 183.82 279.55 128.58 138.24 1.88 4.70 1.03 3.58 9.61 1.29 57864.1 178355.7 5649.3 280.55 135.28 139.77 0.24 0.60 0.08 0.44 2.84 0.09 202.74 821.37 193.55 58.34 77.34 92.45 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.38 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 463.51 Reach Len. (ft) 380.00 420.00 520.00 Existing Condition HEC -RAS Model - Page 21 Crit W.S. (ft) 453.60 Flow Area (sq ft) 3689.97 2372.80 2555.84 E.G. Slope (ft /ft) 0.000574 Area (sq ft) 3689.97 2372.80 2555.84 Q Total (cfs) 22468.00 Flow (cfs) 8612.71 9228.96 4626.32 Top Width (ft) 1409.71 Top Width (ft) 631.00 210.00 568.71 Vel Total (ft /s) 2.61 Avg. Vel. (ft /s) 2.33 3.89 1.81 Max Chl Dpth (ft) 25.18 Hydr. Depth (ft) 5.85 11.30 4.49 Conv. Total (cfs) 938105.3 Conv. (cfs) 359606.1 385336.5 193162.7 Length Wtd. (ft) 429.85 Wetted Per. (ft) 633.75 217.55 572.02 Min Ch E1 (ft) 438.20 Shear (lb /sq ft) 0.21 0.39 0.16 Alpha 1.32 Stream Power (lb /ft s) 0.49 1.52 0.29 Frctn Loss (ft) 0.66 Cum Volume (acre -ft) 357.09 1124.73 726.26 C & E Loss (ft) 0.92 Cum SA (acres) 65.33 99.46 175.20 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32305 INPUT Description: X3'S FROM 32305 -34260 REFLECT INEFFECTIVE FLOW AREAS IN ANDREW BROWN PK. BEGIN WITH M 453.60 Element Left OB Channel Right OB Vel Head (ft) 1.96 Wt. n -Val. Station Elevation 0.045 Data num= 43 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 50 470 50 467 135 466 220 465 1323 465 1335 461 1740 461 1825 462 1890 463 1975 464 2045 465 2110 465 2125 464 2140 463 2160 460 2175 455 2204 450 2218 445 2225 440 2232 437.7 2239 438 2245 440 2253 445 2263 450 2281 455 2325 470 3050 470 3140 460 3180 459 3200 458 3218 457 3265 455 3283 452 3289 451 3292 451 3308 452 3329 455 3350 459 3360 460 3369 461 3400 462 3415 462 3615 464 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 50 .05 1323 .055 1740 .06 2110 .045 2325 .065 3415 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2110 2325 55 55 55 .5 .7 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.60 Element Left OB Channel Right OB Vel Head (ft) 1.96 Wt. n -Val. 0.045 0.065 E.G. Elev (ft) 455.55 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) Flow Area (sq ft) 674.47 70.42 E.G. Slope (ft /ft) 0.009217 Area (sq ft) 674.47 70.42 Q Total (cfs) 7870.00 Flow (cfs) 7664.98 205.02 Top Width (ft) 138.53 Top Width (ft) 92.80 45.74 Vel Total (ft /s) 10.57 Avg. Vel. (ft /s) 11.36 2.91 Max Chl Dpth (ft) 15.90 Hydr. Depth (ft) 7.27 1.54 Conv. Total (cfs) 81972.8 Conv. (cfs) 79837.3 2135.5 Length Wtd. (ft) 55.00 Wetted Per. (ft) 99.38 46.10 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 3.91 0.88 Alpha 1.13 Stream Power (lb /ft s) 44.39 2.56 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 812.16 192.07 C & E Loss (ft) 0.83 Cum SA (acres) 57.13 76.27 91.35 Existing Condition HEC -RAS Model - Page 22 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.72 Element Left OB Channel Right OB Vel Head (ft) 3.21 Wt. n -Val. Wt. n -Val. 0.045 0.065 E.G. Elev (ft) 461.94 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) W.S. (ft) Flow Area (sq ft) Flow Area (sq ft) 1250.10 577.69 E.G. Slope (ft /ft) 0.011284 Area (sq ft) Area (sq ft) 1250.10 577.69 Q Total (cfs) 22468.00 Flow (cfs) Flow (cfs) 19221.18 3246.82 Top Width (ft) 291.16 Top Width (ft) 128.10 163.05 Vel Total (ft /s) 12.29 Avg. Vel. (ft /s) 15.38 5.62 Max Chl Dpth (ft) 21.02 Hydr. Depth (ft) 9.76 3.54 Conv. Total (cfs) 211508.5 Conv. (cfs) 180943.7 30564.8 Length Wtd. (ft) 55.00 Wetted Per. (ft) 136.21 164.07 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 6.47 2.48 Alpha 1.37 Stream Power (lb /ft s) 99.41 13.94 Frctn Loss (ft) 0.25 Cum Volume (acre -ft) 341.00 1107.27 707.55 C & E Loss (ft) 0.67 Cum SA (acres) 62.57 97.83 170.84 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32230 INPUT Description: This is a REPEATED section. Station Elevation Data num= 62 Sta Elev Sta Elev Sta 900 472 1310 467 1700 2201 456.5 2221 456.5 2222 2610 460.5 2611 456.5 2635 3380 465 3381 460 3390.5 3432.01 463 3434.99 463 3435 3495 445 3495.01 463 3497.99 3539.5 461.5 3550 460 3552 3880 463.6 3960 464 4190 4340 463.5 4365 452.8 4365 4380 449.9 4389 451.5 4396 4397 455.2 4411 463.5 4411 4534 465.7 4634 465.1 4734 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta 900 .055 3390.5 .025 3539.5 Bank Sta: Left Right Lengths: Left C 3390.5 3539.5 50 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R 900 3050 470 6180 5734 Elev 462 461.5 460.5 461.5 445 463 465 466 465.4 455.2 465.4 464 n Val _055 'hannel 50 Elev 470 Sta 2000 2430 3000 3425 3455 3498 3600 4340 4366 4396 4411 4834 Sta 4366 Right 50 Elev Sta Elev 460.5 2200 461.5 459.5 2520 459.5 461 3280 462 450 3432 446.5 435 3475 435 446.5 3505 450 466 3740 464 466.9 4340 465.4 465.4 4366 450.7 465.4 4397 465.4 466.9 4434 466.8 463.2 4934 463.5 n Val Sta n Val .02 4411 .05 Coeff Contr. Expan .5 .7 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.83 Element Left OB Channel Right OB Vel Head (ft) 0.77 Wt. n -Val. 0.025 0.020 E.G. Elev (ft) 454.60 Reach Len. (ft) 0.00 0.00 0.00 Crit W.S. (ft) 446.44 Flow Area (sq ft) 1052.20 84.03 E.G. Slope (ft /ft) 0.000948 Area (sq ft) 1052.20 84.03 Q Total (cfs) 7870.00 Flow (cfs) 7507.28 362.72 Existing Condition HEC -RAS Model - Page 23 Top Width (ft) 126.83 Top Width (ft) 97.01 29.82 Vel Total (ft /s) 6.93 Avg. Vel. (ft /s) 7.13 4.32 Max Chl Dpth (ft) 18.83 Hydr. Depth (ft) 10.85 2.82 Conv. Total (cfs) 255636.0 Conv. (cfs) 243853.9 11782.1 Length Wtd. (ft) 0.00 Wetted Per. (ft) 136.66 34.94 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.46 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.25 0.61 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 198.37 811.07 191.97 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 76.15 91.31 Warning - Divided flow computed for this cross - section CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.76 Element Left OB Channel Right OB Vel Head (ft) 2.25 Wt. n -Val. Deck /Roadway Width 0.025 0.021 E.G. Elev (ft) 461.01 Reach Len. (ft) 0.00 0.00 0.00 Crit W.S. (ft) 455.16 Flow Area (sq ft) 1603.55 281.19 E.G. Slope (ft /ft) 0.002452 Area (sq ft) 1603.55 281.19 Q Total (cfs) 22468.00 Flow (cfs) Upstream 19761.04 2706.96 Top Width (ft) 176.55 Top Width (ft) 126.61 49.94 Vel Total (ft /s) 11.92 Avg. Vel. (ft /s) 12.32 9.63 Max Chl Dpth (ft) 23.76 Hydr. Depth (ft) Hi Cord Lo Cord 12.67 5.63 Conv. Total (cfs) 453732.8 Conv. (cfs) Lo Cord 399066.8 54666.0 Length Wtd. (ft) 0.00 Wetted Per. (ft) 463 187.16 74.38 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 464 464 1.31 0.58 Alpha 1.02 Stream Power (lb /ft s) 464 16.16 5.57 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 341.00 1105.46 707.01 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 97.67 170.70 Warning - Divided flow computed for this cross - section. BRIDGE RIVER: RIVER -1 REACH: Reach -1 RS: 32215 INPUT Description: Bridge #1 Distance from Upstream XS = 0 Deck /Roadway Width = 50 Weir Coefficient = 2.6 Bridge Deck /Roadway Skew = Upstream Deck /Roadway Coordinates num= 9 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Upstream Bridge Cross Section Data Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. 3390.5 3539.5 .5 .7 Existing Condition HEGRAS Model - Page 24 Blocked Obstructions num= 2 Selected Low Flow Methods = Energy High Flow Method Sta L Sta R Elev Sta L Sta R Elev Sta Elev Sta 900 3050 470 6180 5734 470 1310 467 1700 Downstream Deck /Roadway Coordinates 2200 461.5 2201 456.5 num= 9 2222 461.5 2430 459.5 2520 459.5 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Downstream Bridge Cross Section Data Station Elevation Data num= 62 Selected Low Flow Methods = Energy High Flow Method Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. 3390.5 3539.5 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 900 3050 470 5734 5734 470 Upstream Embankment side slope = 0 horiz. to 1.0 vertical Downstream Embankment side slope = 0 horiz. to 1.0 vertical Maximum allowable submergence for weir flow = .95 Elevation at which weir flow begins = Energy head used in spillway design = Spillway height used in design = Weir crest shape = Broad Crested Number of Bridge Coefficient Sets = 1 Low Flow Methods and Data Energy Selected Low Flow Methods = Energy High Flow Method Energy Only Additional Bridge Parameters Do not add Friction component to Momentum Do not add Weight component to Momentum Class B flow critical depth computations use critical depth inside the bridge at the downstream end Criteria to check for pressure flow = Upstream water surface BRIDGE OUTPUT Profile #2 -year ultimate Opening : Bridge #1 E.G. US. (ft) 454.60 Element Inside BR US Inside BR DS W.S. US. (ft) 453.83 E.G. Elev (ft) 454.60 454.55 Q Total (cfs) 7870.00 W.S. Elev (ft) 453.83 453.77 Q Bridge (cfs) 7870.00 Crit W.S. (ft) 446.42 446.42 Q Weir (cfs) Max Chl Dpth (ft) 18.83 18.77 Weir Sta Lft (ft) Vel Total (ft /s) 6.93 6.98 Weir Sta Rgt (ft) Flow Area (sq ft) 1136.23 1128.04 Weir Submerg Froude # Chl 0.38 0.38 Existing Condition HEC-RAS Model - Page 25 Weir Max Depth (ft) num= Specif Force (cu ft) 9670.70 9609.93 Min Top Rd (ft) 461.18 Hydr Depth (ft) 8.96 8.94 Min E1 Prs (ft) 465.40 W.P. Total (ft) 171.60 170.75 Delta EG (ft) 0.05 Conv. Total (cfs) 255636.0 253348.2 Delta WS (ft) 0.06 Top Width (ft) 126.83 126.17 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.05 0.00 BR Open Vel (ft /s) 6.98 C & E Loss (ft) 0.01 0.00 Coef of Q 2520 Shear Total (lb /sq ft) 0.39 0.40 Br Sel Mthd Energy only Power Total (lb /ft s) 2.71 2.78 BRIDGE OUTPUT Profile #100 -year ultimat 462 3380 Opening : Bridge #1 3381 460 3390.5 461.5 E.G. US. (ft) 461.01 Element Inside BR US Inside BR DS W.S. US. (ft) 458.76 E.G. Elev (ft) 461.01 460.80 Q Total (cfs) 22468.00 W.S. Elev (ft) 458.76 458.39 Q Bridge (cfs) 22468.00 Crit W.S. (ft) 455.15 455.14 Q Weir (cfs) 446.5 Max Chl Dpth (ft) 23.76 23.39 Weir Sta Lft (ft) 3550 Vel Total (ft /s) 11.92 12.35 Weir Sta Rgt (ft) 466 Flow Area (sq ft) 1884.74 1819.53 Weir Submerg 3960 Froude # Chl 0.61 0.64 Weir Max Depth (ft) 466.9 Specif Force (cu ft) 23678.48 23286.70 Min Top Rd (ft) 461.18 Hydr Depth (ft) 10.68 10.53 Min E1 Prs (ft) 465.40 W.P. Total (ft) 261.54 254.94 Delta EG (ft) 0.21 Conv. Total (cfs) 453732.8 435098.4 Delta WS (ft) 0.37 Top Width (ft) 176.55 172.81 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.13 0.00 BR Open Vel (ft /s) 12.35 C & E Loss (ft) 0.08 0.00 Coef of Q Shear Total (lb /sq ft) 1.10 1.19 Br Sel Mthd Energy only Power Total (lb /ft s) 13.15 14.67 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32200 INPUT Description: DENTON TAP ROAD BRIDGES - FROM KIMLEY -HORN MODEL. W/n VALUE CHANGES -AHH Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 Existing Condition HEC -RAS Model - Page 26 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 Right OB 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 0.021 5014 464.4 5734 466 Reach Len. (ft) 50.00 50.00 50.00 Manning's n Values num= 5 1556.70 262.83 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 262.83 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 19856.61 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 124.37 3390.5 3539.5 Vel Total (ft /s) 50 50 50 .5 .7 12.76 Blocked Obstructions num= 2 Hydr. Depth (ft) 12.52 Sta L Sta R Elev Sta L Sta R Elev Conv. (cfs) 384528.1 900 3050 470 5734 5734 470 Wetted Per. (ft) 183.74 CROSS SECTION OUTPUT Profile #2 -year ultimate 435.00 Shear (lb /sq ft) W.S. Elev (ft) 453.77 Element Left OB Channel Right OB Vel Head (ft) 0.78 Wt. n -Val. 0.11 0.025 0.020 E.G. Elev (ft) 454.55 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) 170.65 Flow Area (sq ft) 1045.93 82.10 E.G. Slope (ft /ft) 0.000965 Area (sq ft) 1045.93 82.10 Q Total (cfs) 7870.00 Flow (cfs) 7515.48 354.52 Top Width (ft) 126.17 Top Width (ft) 96.62 29.55 Vel Total (ft /s) 6.98 Avg. Vel. (ft /s) 7.19 4.32 Max Chl Dpth (ft) 18.77 Hydr. Depth (ft) 10.82 2.78 Conv. Total (cfs) 253348.2 Conv. (cfs) 241935.8 11412.4 Length Wtd. (ft) 50.00 Wetted Per. (ft) 136.24 34.51 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.46 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.32 0.62 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 809.87 191.87 C & E Loss (ft) 0.22 Cum SA (acres) 57.13 76.04 91.27 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.39 Element Left OB Channel Right OB Vel Head (ft) 2.41 Wt. n -Val. 0.025 0.021 E.G. Elev (ft) 460.80 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) Flow Area (sq ft) 1556.70 262.83 E.G. Slope (ft /ft) 0.002667 Area (sq ft) 1556.70 262.83 Q Total (cfs) 22468.00 Flow (cfs) 19856.61 2611.40 Top Width (ft) 172.81 Top Width (ft) 124.37 48.44 Vel Total (ft /s) 12.35 Avg. Vel. (ft /s) 12.76 9.94 Max Chl Dpth (ft) 23.39 Hydr. Depth (ft) 12.52 5.43 Conv. Total (cfs) 435098.4 Conv. (cfs) 384528.1 50570.3 Length Wtd. (ft) 50.00 Wetted Per. (ft) 183.74 71.20 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 1.41 0.61 Alpha 1.02 Stream Power (lb /ft s) 17.99 6.11 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 1103.65 706.70 C & E Loss (ft) 0.41 Cum SA (acres) 62.57 97.52 170.65 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32150 INPUT Description: FROM KIMLEY -HORN MODEL. Existing Condition HEC -RAS Model - Page 27 END AHH CROSS SECTION Station Elevation Data num= 40 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 470 1600 461 1800 461 2000 458 2100 459 2200 457 2220 457 2320 459 2620 456.5 2640 455 2650 457 2680 456.5 2900 459 3100 459 3200 460 3300 461.5 3400 460.5 3427 437 3440 437 3470 437 3475 437 3489 437 3505 447 3525 460 3650 461.5 3920 458 3980 459 4240 458 4280 456 4350 456 4350 452 4380 453.5 4400 457.5 4520 458 4720 461 5110 461 5200 462 5460 462 5800 464 6180 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 3400 .035 3525 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 3400 3525 160 170 180 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 3040 470 6180 6180 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.82 Element Left OB Channel Right OB Vel Head (ft) 0.47 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 454.29 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1430.62 32.46 E.G. Slope (ft /ft) 0.000606 Area (sq ft) 1430.62 32.46 Q Total (cfs) 7870.00 Flow (cfs) 7848.86 21.14 Top Width (ft) 139.44 Top Width (ft) 107.83 31.62 Vel Total (ft /s) 5.38 Avg. Vel. (ft /s) 5.49 0.65 Max Chl Dpth (ft) 16.82 Hydr. Depth (ft) 13.27 1.03 Conv. Total (cfs) 319575.3 Conv. (cfs) 318716.8 858.6 Length Wtd. (ft) 171.01 Wetted Per. (ft) 119.01 33.51 Min Ch E1 (ft) 437.00 Shear (lb /sq ft) 0.46 0.04 Alpha 1.04 Stream Power (lb /ft s) 2.50 0.02 Frctn Loss (ft) 0.20 Cum Volume (acre -ft) 198.37 808.45 191.81 C & E Loss (ft) 0.13 Cum SA (acres) 57.13 75.92 91.24 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.45 Element Left OB Channel Right OB Vel Head (ft) 1.83 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 460.28 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1958.70 592.24 E.G. Slope (ft /ft) 0.001905 Area (sq ft) 1958.70 592.24 Q Total (cfs) 22468.00 Flow (cfs) 21634.89 833.11 Top Width (ft) 610.67 Top Width (ft) 120.27 490.40 Vel Total (ft /s) 8.81 Avg. Vel. (ft /s) 11.05 1.41 Max Chl Dpth (ft) 21.45 Hydr. Depth (ft) 16.29 1.21 Existing Condition HEC -RQS Mode! - Page 28 Conv. Total (cfs) 514835.8 Conv. (cfs) 495745.8 19090.0 Length Wtd. (ft) 173.58 Wetted Per. (ft) 134.56 494.90 Min Ch E1 (ft) 1037 461 437.00 Shear (lb /sq ft) 1.73 0.14 Alpha Area (sq ft) 1.52 Stream Power (lb /ft s) 19.12 0.20 Frctn Loss (ft) 0.24 Cum Volume (acre -ft) 341.00 1101.63 706.21 C & E Loss (ft) 1.13 Cum SA (acres) 62.57 97.38 170.34 Warning - Divided flow computed for this cross - section. warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 31335 INPUT Description: Station Elevation Data num= 30 Left OB Channel Right OB Vel Head (ft) 0.22 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 344.00 1037 461 1045 460 1065 455 1094 450 1130 438.55 Area (sq ft) 1140 438.55 1176 450 1184 455 1193 460 1204 461 Top Width (ft) 1228 461 1231 460 1250 458 1283 458 1310 455 4.77 1380 452 1451 451 1514 451 1849 454 2023 455 702913.2 2059 456 2090 457.6 2097 455 2103 449 2117 449 2124 450 2141 456 2168 457 2180 460 2193 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1037 .05 1094 .04 1176 .07 1283 .045 2059 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1037 1204 377 377 344 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.22 Element Left OB Channel Right OB Vel Head (ft) 0.73 Wt. n -Val. 0.044 0.049 E.G. Elev (ft) 453.95 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 828.79 661.92 E.G. Slope (ft /ft) 0.003393 Area (sq ft) 828.79 661.92 Q Total (cfs) 7870.00 Flow (cfs) 6293.55 1576.45 Top Width (ft) 550.11 Top Width (ft) 105.81 444.30 Vel Total (ft /s) 5.28 Avg. Vel. (ft /s) 7.59 2.38 Max Chl Dpth (ft) 14.67 Hydr. Depth (ft) 7.83 1.49 Conv. Total (cfs) 135110.4 Conv. (cfs) 108046.3 27064.1 Length Wtd. (ft) 363.41 Wetted Per. (ft) 110.56 446.72 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 1.59 0.31 Alpha 1.70 Stream Power (lb /ft s) 12.06 0.75 Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 198.37 804.04 190.37 C & E Loss (ft) 0.19 Cum SA (acres) 57.13 75.50 90.25 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.70 Element Left OB Channel Right OB Vel Head (ft) 0.22 Wt. n -Val. 0.047 0.046 E.G. Elev (ft) 458.92 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 1509.14 4845.92 E.G. Slope (ft /ft) 0.001022 Area (sq ft) 1509.14 4845.92 Q Total (cfs) 22468.00 Flow (cfs) 7197.60 15270.40 Top Width (ft) 1071.90 Top Width (ft) 140.46 931.44 Vel Total (ft /s) 3.54 Avg. Vel. (ft /s) 4.77 3.15 Max Chl Dpth (ft) 20.15 Hydr. Depth (ft) 10.74 5.20 Conv. Total (cfs) 702913.2 Conv. (cfs) 225177.4 477735.8 Existing Condition HEC -RAS Model - Page 29 Length Wtd. (ft) 352.27 Wetted Per. (ft) 147.29 936.07 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.65 0.33 Alpha 1076 455 1093 1.12 Stream Power (lb /ft s) 3.12 1.04 Frctn Loss (ft) 0.22 Cum Volume (acre -ft) 341.00 1094.87 694.97 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 96.87 167.40 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30958 INPUT Description: Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1048 461 1056 460 1076 455 1093 450 1134 438.55 1142 438.55 1183 450 1192 455 1252 460 1285 462 1298 465.3 1346 450 1362 447 1407 446.2 1469 447 1537 448 1600 449 1746 450 1896 452 1995 453 2024 455 2058 458 2101 455 2146 455 2157 448 2173 448 2177 450 2196 456 2232 457 2380 459 2504 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1048 .05 1093 .04 1183 .07 1346 .045 2024 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1048 1285 303 354 302 .1 .3 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 453.22 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.043 0.046 E.G. Elev (ft) 453.32 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 877.84 2572.61 E.G. Slope (ft /ft) 0.000612 Area (sq ft) 877.84 2572.61 Q Total (cfs) 7870.00 Flow (cfs) 2966.40 4903.60 Top Width (ft) 807.44 Top Width (ft) 106.75 700.70 Vel Total (ft /s) 2.28 Avg. Vel. (ft /s) 3.38 1.91 Max Chl Dpth (ft) 14.67 Hydr. Depth (ft) 8.22 3.67 Conv. Total (cfs) 318225.8 Conv. (cfs) 119947.1 198278.6 Length Wtd. (ft) 335.80 Wetted Per. (ft) 111.18 704.02 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.30 0.14 Alpha 1.26 Stream Power (lb /ft s) 1.02 0.27 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 198.37 796.65 177.60 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 74.58 85.73 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.56 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.052 0.046 E.G. Elev (ft) 458.66 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 1589.74 7000.05 E.G. Slope (ft /ft) 0.000426 Area (sq ft) 1589.74 7000.05 Q Total (cfs) 22468.00 Flow (cfs) 4060.00 18408.00 Top Width (ft) 1200.90 Top Width (ft) 172.90 1028.00 Vel Total (ft /s) 2.62 Avg. Vel. (ft /s) 2.55 2.63 Max Chl Dpth (ft) 20.01 Hydr. Depth (ft) 9.19 6.81 Conv. Total (cfs) 1088984.9 Conv. (cfs) 196781.3 892203.6 Length Wtd. (ft) 326.61 Wetted Per. (ft) 178.64 1033.43 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.24 0.18 Alpha 1.00 Stream Power (lb /ft s) 0.60 0.47 Existing Condition HEC -RAS Model - Page 30 Frctn Loss (ft) 0.25 Cum Volume (acre -ft) 341.00 1081.46 648.20 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 95.52 159.66 warning - Divided flow computed for this cross - section. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30604 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 312 +30 Station Elevation Data Sta Elev St 1014 461 102 1141 438.55 118 1244 450 124 1295 446 129 1350 461 145 1473 446 148 1582 461 160 1751 452 179 1876 450 188 2048 456 219 Manning's n Values Sta n Val St 1014 .05 1063 1601 .045 1831 Bank Sta: Left Right 1014 1350 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 49 a Elev Sta Elev Sta Elev Sta Elev 2 460 1042 455 1063 450 1109 438.55 7 450 1211 455 1220 455.8 1230 455 7 449 1273 448 1276 447 1282 446 7 447 1301 450 1316 455 1340 460 4 461 1457 460 1464 455 1469 450 8 446 1496 450 1506 455 1527 460 1 461 1618 460 1653 455 1730 452 6 455 1831 458 1863 458 1867 455 5 447 1895 447 1898 450 1917 455 1 458 2247 459 2395 461 num= 7 Sta .07 Lengths: Left Channel Right 269 220 319 Profile #2 -year ultimate 452.68 Element 0.31 Wt. n -Val. 453.00 Reach Len. (ft) Flow Area (sq ft) 0.001486 Area (sq ft) 7870.00 Flow (cfs) 341.59 Top Width (ft) 4.18 Avg. Vel. (ft /s) 14.13 Hydr. Depth (ft) 204177.6 Conv. (cfs) 230.47 Wetted Per. (ft) 438.55 Shear (lb /sq ft) 1.16 Stream Power (lb /ft s) 0.28 Cum Volume (acre -ft) 0.02 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.069 269.00 220.00 319.00 1566.10 318.31 1566.10 318.31 7266.55 603.45 220.72 120.87 4.64 1.90 7.10 2.63 188521.9 15655.7 226.68 128.03 0.64 0.23 2.97 0.44 198.37 786.72 167.58 57.13 73.25 82.89 n Val Sta n Val Sta n Val Sta n Val .04 1187 .065 1247 .04 1301 .07 .07 Lengths: Left Channel Right 269 220 319 Profile #2 -year ultimate 452.68 Element 0.31 Wt. n -Val. 453.00 Reach Len. (ft) Flow Area (sq ft) 0.001486 Area (sq ft) 7870.00 Flow (cfs) 341.59 Top Width (ft) 4.18 Avg. Vel. (ft /s) 14.13 Hydr. Depth (ft) 204177.6 Conv. (cfs) 230.47 Wetted Per. (ft) 438.55 Shear (lb /sq ft) 1.16 Stream Power (lb /ft s) 0.28 Cum Volume (acre -ft) 0.02 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.069 269.00 220.00 319.00 1566.10 318.31 1566.10 318.31 7266.55 603.45 220.72 120.87 4.64 1.90 7.10 2.63 188521.9 15655.7 226.68 128.03 0.64 0.23 2.97 0.44 198.37 786.72 167.58 57.13 73.25 82.89 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Existing Condition HEC -RAS Model - Page 31 W.S. Elev (ft) 457.95 Element Left OB Channel Right OB Vel Head (ft) 0.43 Wt. n -Val. 0.050 0.058 E.G. Elev (ft) 458.38 Reach Len. (ft) 269.00 220.00 319.00 Crit W.S. (ft) Description: Flow Area (sq ft) 2955.23 1990.35 E.G. Slope (ft /ft) 0.001863 Area (sq ft) num= 2955.23 1990.35 Q Total (cfs) 22468.00 Flow (cfs) Sta Elev Sta 17206.48 5261.52 Top Width (ft) 880.60 Top Width (ft) 299.93 580.66 Vel Total (ft /s) 4.54 Avg. Vel. (ft /s) 438.14 5.82 2.64 Max Chl Dpth (ft) 19.40 Hydr. Depth (ft) 1287 9.85 3.43 Conv. Total (cfs) 520489.4 Conv. (cfs) 446 398602.1 121887.3 Length Wtd. (ft) 241.34 Wetted Per. (ft) 1413 459 1447 307.92 592.97 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 460 1.12 0.39 Alpha 1.34 Stream Power (lb /ft s) 1668 450 1673 6.50 1.03 Frctn Loss (ft) 0.48 Cum Volume (acre -ft) 341.00 1062.99 617.03 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 93.60 154.08 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30384 INPUT Description: Station Elevation Data num= 46 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1045 462 1053 460 1073 455 1095 450 1142 438.14 1178 438.14 1225 450 1246 455 1270 459 1287 460 1307 455 1320 450 1328 446 1333 446 1371 447 1377 450 1391 455 1413 459 1447 460 1481 460.7 1504 460 1570 460 1640 459.8 1650 459 1658 455 1668 450 1673 445 1689 445 1694 450 1697 455 1716 460 1756 460 1788 461.3 1800 461 1815 459 1888 458 1930 455 1951 450 1958 445 1967 445 1977 450 1982 455 2004 458 2077 458 2096 458 2150 460 Manning's n Values num= 9 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1045 .05 1095 .04 1225 .065 1320 .04 1377 .07 1668 .045 1694 .07 1951 .045 1977 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1045 1447 371 357 410 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.45 Element Left OB Channel Right OB Vel Head (ft) 0.25 Wt. n -Val. 0.044 0.045 E.G. Elev (ft) 452.69 Reach Len. (ft) 371.00 357.00 410.00 Crit W.S. (ft) Flow Area (sq ft) 1662.30 343.23 E.G. Slope (ft /ft) 0.001024 Area (sq ft) 1662.30 343.23 Q Total (cfs) 7870.00 Flow (cfs) 6808.78 1061.22 Top Width (ft) 292.39 Top Width (ft) 221.28 71.10 Vel Total (ft /s) 3.92 Avg. Vel. (ft /s) 4.10 3.09 Max Chl Dpth (ft) 14.31 Hydr. Depth (ft) 7.51 4.83 Conv. Total (cfs) 245906.7 Conv. (cfs) 212747.6 33159.1 Length Wtd. (ft) 364.27 Wetted Per. (ft) 227.34 81.29 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.47 0.27 Alpha 1.03 Stream Power (lb /ft s) 1.92 0.83 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 198.37 778.57 165.16 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 72.14 82.18 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 457.32 Element Left OB Channel Right OB Vel Head (ft) 0.56 Wt. n -Val. 0.049 0.048 E.G. Elev (ft) 457.88 Reach Len. (ft) 371.00 357.00 410.00 Existing Condition HEC -RAS Model - Page 32 Crit W.S. (ft) 32 Flow Area (sq ft) 2922.14 834.67 E.G. Slope (ft /ft) 0.002105 Area (sq ft) 2922.14 834.67 Q Total (cfs) 22468.00 Flow (cfs) 18043.42 4424.58 Top Width (ft) 456.35 Top Width (ft) 302.31 154.04 Vel Total (ft /s) 5.98 Avg. Vel. (ft /s) 6.17 5.30 Max Chl Dpth (ft) 19.18 Hydr. Depth (ft) 9.67 5.42 Conv. Total (cfs) 489749.7 Conv. (cfs) 393304.1 96445.6 Length Wtd. (ft) 371.19 Wetted Per. (ft) 310.84 168.73 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 1.24 0.65 Alpha 1.01 Stream Power (lb /ft s) 7.63 3.45 Frctn Loss (ft) 0.60 Cum Volume (acre -ft) 341.00 1048.15 606.69 C & E Loss (ft) 0.08 Cum SA (acres) 62.57 92.07 151.39 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30027 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 305 +70 Station Elevation Data Sta Elev Sta 1128 462 113E 1267 438.23 1314 1420 450 1434 1525 460 1548 1740 459 1758 1867 449 1998 2131 459 2190 num= 32 Elev Sta Elev Sta Elev Sta Elev 460 1156 455 1176 450 1223 438.23 450 1340 455 1377 458.2 1409 455 439.8 1453 439.8 1476 450 1493 455 460.5 1578 460 1619 459.6 1672 459.6 457 1780 456 1790 455 1840 450 448.6 2008 449 2026 450 2088 455 460 6 Sta n Val Sta n Val Sta n Val 1314 .065 1420 .04 1476 .07 Manning's n Values num= Sta n Val Sta n Val 1128 .05 1176 .04 1672 .045 Bank Sta: Left Right 1128 1525 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Lengths: Left Channel Right 148 196 299 Profile #2 -year ultimate 452.20 Element 0.17 Wt. n -Val. 452.38 Reach Len. (ft) Flow Area (sq ft) 0.000657 Area (sq ft) 7870.00 Flow (cfs) 462.01 Top Width (ft) 3.06 Avg. Vel. (ft /s) 13.97 Hydr. Depth (ft) 307054.7 Conv. (cfs) 218.34 Wetted Per. (ft) 438.23 Shear (lb /sq ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.044 0.045 148.00 196.00 299.00 1917.23 656.19 1917.23 656.19 6770.74 1099.26 226.63 235.38 3.53 1.68 8.46 2.79 264166.1 42888.6 236.29 235.64 0.33 0.11 Existing Condition HEC -RAS Model - Page 33 Alpha 1.19 Stream Power (lb /ft s) Element 1.18 0.19 Frctn Loss (ft) 0.10 Cum Volume (acre -ft) Wt. n -Val. 198.37 763.90 160.45 C & E Loss (ft) 0.03 Cum SA (acres) 171.00 180.00 57.13 70.30 80.74 Warning - Divided flow computed for this cross - section. 2102.87 1499.94 E.G. Slope (ft /ft) 0.000315 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. 238.06 CROSS SECTION OUTPUT Profile #100 -year ultimat Vel Total (ft /s) 2.18 Avg. Vel. (ft /s) 2.64 W.S. Elev (ft) 456.91 Element Left OB Channel Right OB Vel Head (ft) 0.30 Wt. n -Val. 443587.0 Conv. (cfs) 0.050 0.045 E.G. Elev (ft) 457.21 Reach Len. (ft) Wetted Per. (ft) 148.00 196.00 299.00 Crit W.S. (ft) Flow Area (sq ft) 0.17 0.07 3179.05 2014.02 E.G. Slope (ft /ft) 0.001265 Area (sq ft) 3179.05 2014.02 Q Total (cfs) 22468.00 Flow (cfs) 14862.85 7605.15 Top Width (ft) 677.66 Top Width (ft) 329.08 348.58 Vel Total (ft /s) 4.33 Avg. Vel. (ft /s) 4.68 3.78 Max Chl Dpth (ft) 18.68 Hydr. Depth (ft) 9.66 5.78 Conv. Total (cfs) 631813.8 Conv. (cfs) 417952.3 213861.5 Length Wtd. (ft) 239.08 Wetted Per. (ft) 340.92 349.25 Min Ch E1 (ft) 438.23 Shear (lb /sq ft) 0.74 0.46 Alpha 1.03 Stream Power (lb /ft s) 3.44 1.72 Frctn Loss (ft) 0.16 Cum Volume (acre -ft) 341.00 1023.15 593.28 C & E Loss (ft) 0.04 Cum SA (acres) 62.57 89.49 149.03 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29831 INPUT Description: Station Elevation Data num= 44 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1147 462 1155 460 1175 455 1197 450 1244 438.14 1296 438.14 1343 450 1361 455 1377 460 1386 461 1421 460 1444 459 1462 455 1480 450 1498 439.3 1518 439.3 1543 450 1552 455 1557 457 1570 458 1586 459.8 1607 455 1654 455 1691 450 1699 449 1755 448.8 1891 448.4 2089 448.4 2100 450 2127 455 2291 458 2371 458.5 2388 458 2396 455 2400 452 2408 452 2415 455 2434 459 2476 459 2536 458 2582 457.3 2725 457.3 2763 458 2771 460 Manning's n Values num= 10 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1147 .05 1175 .04 1421 .065 1480 .04 1543 .07 1654 .045 1891 .035 2089 .045 2291 .075 2582 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1147 1570 171 180 197 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.17 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.042 0.039 E.G. Elev (ft) 452.26 Reach Len. (ft) 171.00 180.00 197.00 Crit W.S. (ft) Flow Area (sq ft) 2102.87 1499.94 E.G. Slope (ft /ft) 0.000315 Area (sq ft) 2102.87 1499.94 Q Total (cfs) 7870.00 Flow (cfs) 5554.67 2315.33 Top Width (ft) 683.43 Top Width (ft) 238.06 445.37 Vel Total (ft /s) 2.18 Avg. Vel. (ft /s) 2.64 1.54 Max Chl Dpth (ft) 14.03 Hydr. Depth (ft) 8.83 3.37 Conv. Total (cfs) 443587.0 Conv. (cfs) 313085.3 130501.7 Length Wtd. (ft) 184.59 Wetted Per. (ft) 247.53 445.99 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.17 0.07 Existing Condition HEGRAS Model - Page 34 Alpha 1.18 Stream Power (lb /ft s) 0.44 0.10 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 198.37 754.86 153.05 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 69.26 78.40 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.85 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 0.044 0.040 E.G. Elev (ft) 457.00 Reach Len. (ft) 171.00 180.00 197.00 Crit W.S. (ft) Flow Area (sq ft) 3366.55 3940.08 E.G. Slope (ft /ft) 0.000423 Area (sq ft) 3366.55 3940.08 Q Total (cfs) 22468.00 Flow (cfs) 11276.91 11191.09 Top Width (ft) 964.47 Top Width (ft) 302.32 662.16 Vel Total (ft /s) 3.08 Avg. Vel. (ft /s) 3.35 2.84 Max Chl Dpth (ft) 18.71 Hydr. Depth (ft) 11.14 5.95 Conv. Total (cfs) 1091887.1 Conv. (cfs) 548028.9 543858.2 Length Wtd. (ft) 188.27 Wetted Per. (ft) 314.69 665.50 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.28 0.16 Alpha 1.02 Stream Power (lb /ft s) 0.95 0.44 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 1008.42 572.85 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 88.07 145.56 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29651 INPUT Description: Station Elevation Data num= 44 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1168 462 1176 460 1196 455 1219 450 1267 438.06 1320 438.06 1368 450 1387 455 1410 459 1427 459 1471 458 1497 455 1529 450 1550 438.8 1571 438.9 1597 450 1605 455 1616 457 1626 457.4 1635 457 1644 455 1681 450 1684 449 1737 448.6 1854 449 2023 449 2182 450 2208 455 2218 456 2386 458 2435 457 2457 456 2486 455 2494 454 2502 454 2523 457 2558 457 2566 455 2573 453 2577 453 2585 455 2604 459 2772 459 2777 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1168 .05 1219 .04 1410 .065 1529 .04 1597 .07 1626 .045 2457 .075 2604 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1168 1626 600 527 404 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.10 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 452.19 Reach Len. (ft) 600.00 527.00 404.00 Crit W.S. (ft) Flow Area (sq ft) 2194.36 1534.95 E.G. Slope (ft /ft) 0.000349 Area (sq ft) 2194.36 1534.95 Q Total (cfs) 7870.00 Flow (cfs) 5942.26 1927.74 Top Width (ft) 778.96 Top Width (ft) 251.47 527.49 Vel Total (ft /s) 2.11 Avg. Vel. (ft /s) 2.71 1.26 Max Chl Dpth (ft) 14.04 Hydr. Depth (ft) 8.73 2.91 Conv. Total (cfs) 421481.8 Conv. (cfs) 318240.8 103241.1 Length Wtd. (ft) 507.96 Wetted Per. (ft) 260.73 527.99 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.18 0.06 Alpha 1.33 Stream Power (lb /ft s) 0.50 0.08 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 198.37 745.98 146.19 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 68.24 76.20 Existing Condition HEC-RAS Model - Page 35 Warning - Divided flow computed for this cross - section. Right OB 0.16 Wt. n -Val. Note - Manning's n values were composited to a single value in the main channel. Elev CROSS SECTION OUTPUT Profile #100 -year ultimat Elev 460 1293 W.S. Elev (ft) 456.78 Element Left OB Channel Right OB Vel Head (ft) 0.13 Wt. n -Val. 437.6 0.046 0.045 E.G. Elev (ft) 456.91 Reach Len. (ft) 600.00 527.00 404.00 Crit W.S. (ft) 451 Flow Area (sq ft) 450 3561.53 4346.64 E.G. Slope (ft /ft) 0.000493 Area (sq ft) 4 3561.53 4346.64 Q Total (cfs) 22468.00 Flow (cfs) n Val 11803.31 10664.69 Top Width (ft) 1105.04 Top Width (ft) 341.53 763.51 Vel Total (ft /s) 2.84 Avg. Vel. (ft /s) 3.31 2.45 Max Chl Dpth (ft) 18.72 Hydr. Depth (ft) Expan. 10.43 5.69 Conv. Total (cfs) 1011843.1 Conv. (cfs) .1 531560.4 480282.6 Length Wtd. (ft) 472.37 Wetted Per. (ft) 353.17 765.97 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.31 0.17 Alpha 1.07 Stream Power (lb /ft s) 1.03 0.43 Frctn Loss (ft) 0.25 Cum Volume (acre -ft) 341.00 994.10 554.11 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 86.74 142.34 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29124 INPUT Description: * * * ** SECTION "C" * * * ** NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 296 +10 Station Elevation Data Sta Elev Sta 1264 462 1272 1409 437.83 1456 1577 455 1620 1702 452 1895 2402 460 Manning's n Values Sta n Val Sta 1264 .05 1318 Bank Sta: Left Right 1264 1620 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) num= 21 Left OB Channel Right OB 0.16 Wt. n -Val. 0.042 Elev Sta Elev Sta Elev Sta Elev 460 1293 455 1318 450 1367 437.83 449.5 1488 437.4 1512 437.6 1542 450 459 1654 459 1673 455 1684 453 451 2097 450 2348 451 2373 455 num= 4 n Val Sta n Val Sta n Val .04 1542 .07 1654 .045 Lengths: Left Channel Right Coeff Contr. Expan. 161 234 337 .1 .3 Profile #2 -year ultimate 451.82 Element Left OB Channel Right OB 0.16 Wt. n -Val. 0.042 0.045 451.98 Reach Len. (ft) 161.00 234.00 337.00 Flow Area (sq ft) 2230.57 665.86 0.000483 Area (sq ft) 2230.57 665.86 7870.00 Flow (cfs) 7361.54 508.46 Existing Condition HEC -RAS Model - Page 36 Top Width (ft) 862.54 Top Width (ft) 245.86 616.68 Vel Total (ft /s) 2.72 Avg. Vel. (ft /s) 3.30 0.76 Max Chl Dpth (ft) 14.42 Hydr. Depth (ft) 9.07 1.08 Conv. Total (cfs) 358144.7 Conv. (cfs) 335005.8 23138.9 Length Wtd. (ft) 252.40 Wetted Per. (ft) 253.76 616.75 Min Ch E1 (ft) 437.40 Shear (lb /sq ft) 0.26 0.03 Alpha 1.39 Stream Power (lb /ft s) 0.87 0.02 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 198.37 719.21 135.99 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 65.24 70.90 warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.50 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.047 0.045 E.G. Elev (ft) 456.66 Reach Len. (ft) 161.00 234.00 337.00 Crit W.S. (ft) Flow Area (sq ft) 3514.84 3880.41 E.G. Slope (ft /ft) 0.000553 Area (sq ft) 3514.84 3880.41 Q Total (cfs) 22468.00 Flow (cfs) 13175.00 9293.00 Top Width (ft) 1022.20 Top Width (ft) 306.39 715.80 Vel Total (ft /s) 3.04 Avg. Vel. (ft /s) 3.75 2.39 Max Chl Dpth (ft) 19.10 Hydr. Depth (ft) 11.47 5.42 Conv. Total (cfs) 955271.3 Conv. (cfs) 560161.2 395110.1 Length Wtd. (ft) 286.28 Wetted Per. (ft) 315.08 716.62 Min Ch E1 (ft) 437.40 Shear (lb /sq ft) 0.39 0.19 Alpha 1.15 Stream Power (lb /ft s) 1.44 0.45 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 341.00 951.30 515.96 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 82.82 135.48 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28890 INPUT Description: Station Elevation Data num= 39 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1289 462 1297 460 1317 455 1339 450 1388 437.71 1433 437.71 1482 450 1499 455 1516 459 1539 459.5 1564 459 1581 456 1596 455 1610 450 1633 437.5 1637 437.1 1666 450 1677 455 1696 460 1699 460.9 1709 460 1732 455 1743 452 1753 451 1830 450 1971 449 2075 448.5 2178 448.5 2290 449 2429 450 2459 451.2 2495 449 2526 449 2526 456.5 2555 456.5 2555 453.6 2571 453.6 2629 455 2703 460 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1289 .05 1339 .04 1482 .065 1610 .04 1666 .075 1699 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1289 1696 153 170 194 .1 .3 Blocked Obstructions num= 1 Sta L Sta R Elev 2526 2703 460 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.75 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 451.85 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) Flow Area (sq ft) 1904.39 1889.84 E.G. Slope (ft /ft) 0.000421 Area (sq ft) 1904.39 1889.84 Q Total (cfs) 7870.00 Flow (cfs) 5567.35 2302.65 Top width (ft) 1001.87 Top Width (ft) 221.38 780.49 Vel Total (ft /s) 2.07 Avg. Vel. (ft /s) 2.92 1.22 Existing Condition HEC -R4S Model - Page 37 Max Chl Dpth (ft) 14.65 Hydr. Depth (ft) 1280 1689 8.60 2.42 Conv. Total (cfs) 383639.7 Conv. (cfs) RS: 28720 271392.0 112247.7 Length Wtd. (ft) 179.45 Wetted Per. (ft) E.G. Elev (ft) 231.48 783.38 Min Ch E1 (ft) 437.10 Shear (lb /sq ft) E.G. Slope (ft /ft) 0.22 0.06 Alpha 1.51 Stream Power (lb /ft s) Top Width (ft) 0.63 0.08 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 198.37 708.11 126.10 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 63.98 65.49 Warning - Divided flow computed for this cross - section. Sta Elev Sta Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. 1372 CROSS SECTION OUTPUT Profile #100 -year ultimat 1466 450 1483 W.S. Elev (ft) 456.40 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 455 0.048 0.045 E.G. Elev (ft) 456.51 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) 1689 Flow Area (sq ft) 1711 3086.55 5569.96 E.G. Slope (ft /ft) 0.000412 Area (sq ft) 447.1 3086.55 5569.96 Q Total (cfs) 22468.00 Flow (cfs) 2473 8954.43 13513.57 Top Width (ft) 1097.63 Top Width (ft) 297.18 800.45 Vel Total (ft /s) 2.60 Avg. Vel. (ft /s) 2.90 2.43 Max Chl Dpth (ft) 19.30 Hydr. Depth (ft) Sta 10.39 6.96 Conv. Total (cfs) 1107101.4 Conv. (cfs) Sta 441225.7 665875.6 Length Wtd. (ft) 185.24 Wetted Per. (ft) .065 309.97 808.56 Min Ch E1 (ft) 437.10 Shear (lb /sq ft) 1992 0.26 0.18 Alpha 1.02 Stream Power (lb /ft s) 0.74 0.43 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 341.00 933.57 479.40 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 81.20 129.61 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 Left Channel Right 1280 1689 173 228 338 CROSS SECTION OUTPUT REACH: Reach -1 ultimate RS: 28720 451.74 Element Vel Head (ft) 0.04 Wt. n -Val. E.G. Elev (ft) INPUT Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000169 Area (sq ft) Q Total (cfs) Description: Flow (cfs) Top Width (ft) 986.79 Top Width (ft) Vel Total (ft /s) 1.55 Avg. Vel. (ft /s) Max Chl Dpth (ft) Station Elevation Data num= 29 Conv. (cfs) Length Wtd. (ft) 285.15 Wetted Per. (ft) Min Ch El (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1280 460 1281 460 1301 455 1321 450 1372 437.62 1415 437.62 1466 450 1483 455 1495 458 1509 459 1537 459.7 1552 459 1565 455 1576 450 1597 437.5 1609 436.8 1643 450 1657 455 1689 458.6 1711 455 1746 450 1824 448 1992 447.1 2363 447.1 2385 448 2443 449 2473 450 2513 455 2543 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1280 .05 1321 .04 1537 .065 1576 .04 1643 .07 1689 .045 1992 .035 2363 .045 Bank Sta: Left Right Lengths: Left Channel Right 1280 1689 173 228 338 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.74 Element Vel Head (ft) 0.04 Wt. n -Val. E.G. Elev (ft) 451.79 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000169 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 986.79 Top Width (ft) Vel Total (ft /s) 1.55 Avg. Vel. (ft /s) Max Chl Dpth (ft) 14.94 Hydr. Depth (ft) Conv. Total (cfs) 606187.4 Conv. (cfs) Length Wtd. (ft) 285.15 Wetted Per. (ft) Min Ch El (ft) 436.80 Shear (lb /sq ft) Alpha 1.12 Stream Power (lb /ft s) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.042 0.038 173.00 228.00 338.00 2062.20 3012.25 2062.20 3012.25 3977.38 3892.62 233.63 753.16 1.93 1.29 8.83 4.00 306357.7 299829.7 243.67 753.47 0.09 0.04 0.17 0.05 Existing Condition HEGRAS Model - Page 38 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 700.37 115.18 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 63.09 62.08 Warning - Divided flow computed for this cross - section. 1583 1769 447.1 Note - Manning's n values were composited to a single value in the main channel. 2599 CROSS SECTION OUTPUT Profile #100 -year ultimat Sta n Val Sta W.S. Elev (ft) 456.37 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 1605 0.045 0.039 E.G. Elev (ft) 456.45 Reach Len. (ft) 173.00 228.00 338.00 Crit W.S. (ft) 449 Flow Area (sq ft) 450 3282.54 6653.17 E.G. Slope (ft /ft) 0.000209 Area (sq ft) 3282.54 6653.17 Q Total (cfs) 22468.00 Flow (cfs) 7439.07 15028.93 Top Width (ft) 1120.15 Top Width (ft) Sta 301.57 818.58 Vel Total (ft /s) 2.26 Avg. Vel. (ft /s) .065 2.27 2.26 Max Chl Dpth (ft) 19.57 Hydr. Depth (ft) 2352 10.88 8.13 Conv. Total (cfs) 1554898.1 Conv. (cfs) Lengths: 514821.2 1040076.9 Length Wtd. (ft) 304.43 Wetted Per. (ft) 406 314.37 819.54 Min Ch E1 (ft) 436.80 Shear (lb /sq ft) 0.14 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 0.24 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 341.00 921.14 452.18 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 80.03 126.01 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28492 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 288+70 Station Elevation Data Sta Elev Sta 1215 460 1216 1351 437.5 1401 1465 457 1492 1572 450 1583 1769 447.1 2352 2576 455 2599 Manning's n Values Sta n Val Sta 1215 .05 1259 1605 .045 1769 Bank Sta: Left Right 1605 1215 1605 CROSS SECTION OUTPUT W.S. Elev (ft) 450 num= 27 Elev Sta Elev Sta Elev Sta Elev 460 1237 455 1259 450 1309 437.5 450 1416 455 1424 457 1439 457.4 455 1503 450 1518 437.6 1536 436.3 455 1605 459.2 1650 455 1714 450 447.1 2423 448 2512 449 2540 450 460 num= 8 n Val Sta n Val Sta n Val Sta n Val .04 1401 .065 1503 .04 1572 .07 .035 2352 .045 Lengths: Left Channel Right Coeff Contr. Expan. 406 324 307 .1 .3 Profile #2 -year ultimate 451.71 Element Left OB Channel Right OB Existing Condition HEC-RAS Model - Page 39 Vel Head (ft) 0.03 Wt. n -Val. 0.042 0.037 E.G. Elev (ft) 451.74 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) Flow Area (sq ft) INPUT 2102.19 3532.20 E.G. Slope (ft /ft) 0.000131 Area (sq ft) 2102.19 3532.20 Q Total (cfs) 7870.00 Flow (cfs) 3584.54 4285.46 Top Width (ft) 1091.33 Top Width (ft) 24 231.16 860.17 Vel Total (ft /s) 1.40 Avg. Vel. (ft /s) Sta 1.71 1.21 Max Chl Dpth (ft) 15.41 Hydr. Depth (ft) 9.09 4.11 Conv. Total (cfs) 688604.5 Conv. (cfs) 1146 313638.3 374966.2 Length Wtd. (ft) 314.89 Wetted Per. (ft) 1241 459.2 1265 242.47 860.46 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 1328 0.07 0.03 Alpha 1.09 Stream Power (lb /ft s) 0.12 0.04 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 689.47 89.79 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 61.88 55.82 Warning - Divided flow computed for this cross - section. num= 8 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat n Val Sta n Val Sta n Val W.S. Elev (ft) 456.32 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. .07 0.047 0.037 E.G. Elev (ft) 456.39 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) Bank Sta: Left Right Flow Area (sq ft) Channel Right 3307.91 7710.77 E.G. Slope (ft /ft) 0.000162 Area (sq ft) 3307.91 7710.77 Q Total (cfs) 22468.00 Flow (cfs) 6274.33 16193.67 Top Width (ft) 1251.92 Top Width (ft) 305.65 946.27 Vel Total (ft /s) 2.04 Avg. Vel. (ft /s) Left OB 1.90 2.10 Max Chl Dpth (ft) 20.02 Hydr. Depth (ft) Wt. n -Val. 10.82 8.15 Conv. Total (cfs) 1766869.8 Conv. (cfs) 493409.1 1273460.6 Length Wtd. (ft) 311.80 Wetted Per. (ft) 223.00 319.79 947.12 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 0.10 0.08 Alpha 1.01 Stream Power (lb /ft s) Area (sq ft) 0.20 0.17 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 341.00 903.89 396.45 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 78.44 119.16 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28168 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1021 460 1041 455 1061 450 1112 437.36 1146 437.36 1197 450 1214 455 1241 459.2 1265 455 1275 450 1293 436.6 1328 438.9 1353 450 1375 455 1419 458.8 1461 455 1525 450 1563 447.1 1994 447.1 2196 448 2410 449 2436 450 2468 455 2496 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1021 .05 1061 .04 1214 .065 1275 .04 1353 .07 1419 .045 1563 .035 1994 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1021 1419 167 176 223 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.67 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n -Val. 0.042 0.039 E.G. Elev (ft) 451.70 Reach Len. (ft) 167.00 176.00 223.00 Crit W.S. (ft) Flow Area (sq ft) 2138.38 3679.06 E.G. Slope (ft /ft) 0.000135 Area (sq ft) 2138.38 3679.06 Q Total (cfs) 7870.00 Flow (cfs) 3718.45 4151.55 Top Width (ft) 1180.01 Top Width (ft) 237.00 943.00 Vel Total (ft /s) 1.35 Avg. Vel. (ft /s) 1.74 1.13 Max Chl Dpth (ft) 15.07 Hydr. Depth (ft) 9.02 3.90 Existing Condition HEC -RAS Model - Page 40 Conv. Total (cfs) 677062.8 Conv. (cfs) 319901.1 357161.7 Length Wtd. (ft) 194.94 Wetted Per. (ft) 247.98 943.33 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.07 0.03 Alpha 1.15 Stream Power (lb /ft s) 0.13 0.04 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 198.37 673.70 64.38 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 60.14 49.46 Warning - Divided flow computed for this cross - section. Elev Sta Elev Sta Elev Note - Manning's n values were composited to a single value in the main channel. 1061 CROSS SECTION OUTPUT Profile #100 -year ultimat 1173 437.28 W.S. Elev (ft) 456.28 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 1375 0.047 0.039 E.G. Elev (ft) 456.34 Reach Len. (ft) 167.00 176.00 223.00 Crit W.S. (ft) 1528 458 1543 Flow Area (sq ft) 1558 3389.32 8229.46 E.G. Slope (ft /ft) 0.000160 Area (sq ft) 1624 449 1977 3389.32 8229.46 Q Total (cfs) 22468.00 Flow (cfs) 2561 6410.73 16057.27 Top Width (ft) 1346.71 Top Width (ft) 318.43 1028.28 Vel Total (ft /s) 1.93 Avg. Vel. (ft /s) 1.89 1.95 Max Chl Dpth (ft) 19.68 Hydr. Depth (ft) Sta n Val Sta 10.64 8.00 Conv. Total (cfs) 1774752.0 Conv. (cfs) 1081 506384.7 1268367.4 Length Wtd. (ft) 206.53 Wetted Per. (ft) 331.88 1029.17 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.10 0.08 Alpha 1.00 Stream Power (lb /ft s) Expan. 0.19 0.16 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 341.00 878.99 340.28 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 76.12 112.20 warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27992 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1041 460 1061 455 1081 450 1132 437.28 1173 437.28 1224 450 1243 455 1265 459 1302 459.7 1339 459.7 1362 459 1375 455 1391 450 1410 436 1452 435.6 1482 450 1508 455 1528 458 1543 458.6 1558 458 1572 455 1607 450 1624 449 1977 448.5 2229 449 2527 450 2561 451 2587 455 2617 460 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1041 .05 1081 .04 1224 .065 1391 .04 1482 .07 1607 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1041 1543 213 244 309 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.60 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.043 0.045 E.G. Elev (ft) 451.66 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) Flow Area (sq ft) 2511.56 2436.21 E.G. Slope (ft /ft) 0.000216 Area (sq ft) 2511.56 2436.21 Q Total (cfs) 7870.00 Flow (cfs) 5678.28 2191.72 Top Width (ft) 1229.11 Top Width (ft) 259.97 969.14 Vel Total (ft /s) 1.59 Avg. Vel. (ft /s) 2.26 0.90 Max Chl Dpth (ft) 16.00 Hydr. Depth (ft) 9.66 2.51 Conv. Total (cfs) 535448.4 Conv. (cfs) 386331.3 149117.0 Length Wtd. (ft) 255.27 Wetted Per. (ft) 271.78 969.35 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.12 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.28 0.03 Frctn Loss (ft) 0.08 Cum Volume (acre -ft) 198.37 664.30 48.73 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 59.13 44.57 Existing Condition HEC -RAS Model - Page 41 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.23 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n -Val. 0.048 0.045 E.G. Elev (ft) 456.29 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) Flow Area (sq ft) 3888.99 7058.86 E.G. Slope (ft /ft) 0.000242 Area (sq ft) 3888.99 7058.86 Q Total (cfs) 22468.00 Flow (cfs) 9336.22 13131.78 Top Width (ft) 1366.89 Top Width (ft) 338.81 1028.08 Vel Total (ft /s) 2.05 Avg. Vel. (ft /s) 2.40 1.86 Max Chl Dpth (ft) 20.63 Hydr. Depth (ft) 11.48 6.87 Conv. Total (cfs) 1443739.6 Conv. (cfs) 599922.8 843816.8 Length Wtd. (ft) 281.02 Wetted Per. (ft) 352.85 1029.02 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.17 0.10 Alpha 1.05 Stream Power (lb /ft s) 0.40 0.19 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 864.28 301.15 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 74.79 106.94 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27748 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 280 +80 Station Elevation Data Sta Elev St 1071 460 1091 1253 450 1275 1441 459.2 1499 1583 450 1594 1697 450 1859 2700 451.4 2747 Manning's n Values Sta n Val Sta 1071 .05 1109 1616 .045 Bank Sta: Left Right 1071 1606 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) num= 29 Sta Elev Sta Elev 455 1109 450 455 1286 458 455 1516 450 455 1606 456.5 450 1957 450.2 452 2765 455 num= 6 n Val Sta n Val .04 1253 .065 Lengths: Left Channel 324 299 Profile #2 -year ultimate 451.40 Element 0.17 Wt. n -Val. Sta Elev Sta Elev 1160 437.18 1202 437.18 1371 458 1426 459 1538 435.2 1557 435.3 1616 455 1642 451 2096 450.2 2338 451 2789 459 Sta n Val Sta n Val 1516 .04 1583 .07 Right Coeff Contr. Expan. 262 .1 .3 Left OB Channel Right OB 0.042 0.045 Existing Condition HEC -RAS Model - Page 42 E.G. Elev (ft) 451.57 Reach Len. (ft) 324.00 299.00 262.00 Crit W.S. (ft) Flow Area (sq ft) 2135.19 837.27 E.G. Slope (ft /ft) 0.000519 Area (sq ft) 2135.19 837.27 Q Total (cfs) 7870.00 Flow (cfs) 7332.25 537.75 Top width (ft) 1290.66 Top Width (ft) 230.04 1060.62 Vel Total (ft /s) 2.65 Avg. Vel. (ft /s) 3.43 0.64 Max Chl Dpth (ft) 16.20 Hydr. Depth (ft) Elev 9.28 0.79 Conv. Total (cfs) 345592.7 Conv. (cfs) 1014 460.3 321978.4 23614.2 Length Wtd. (ft) 296.36 Wetted Per. (ft) 437.04 242.45 1060.66 Min Ch E1 (ft) 435.20 Shear (lb /sq ft) 457.6 0.29 0.03 Alpha 1.57 Stream Power (lb /ft s) 456.4 0.98 0.02 Frctn Loss (ft) 0.15 Cum Volume (acre -ft) 198.37 651.29 37.12 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 57.76 37.37 Warning - Divided flow computed for this cross- section. 449.8 2182 450 Note - Manning's n values were composited to a single value in the main channel. 452 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.11 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. Sta 0.048 0.045 E.G. Elev (ft) 456.21 Reach Len. (ft) 324.00 299.00 262.00 Crit W.S. (ft) 1413 .065 1427 Flow Area (sq ft) 1499 3379.19 6162.33 E.G. Slope (ft /ft) 0.000404 Area (sq ft) 3379.19 6162.33 Q Total (cfs) 22468.00 Flow (cfs) Lengths: Left Channel Right 10005.46 12462.54 Top Width (ft) 1474.77 Top Width (ft) 311.71 1163.06 Vel Total (ft /s) 2.35 Avg. Vel. (ft /s) 2.96 2.02 Max Chl Dpth (ft) 20.91 Hydr. Depth (ft) 10.84 5.30 Conv. Total (cfs) 1118119.1 Conv. (cfs) Channel 497921.2 620197.9 Length Wtd. (ft) 278.21 Wetted Per. (ft) 326.71 1163.80 Min Ch E1 (ft) 435.20 Shear (lb /sq ft) 451.42 0.26 0.13 Alpha 1.11 Stream Power (lb /ft s) Crit W.S. (ft) 0.77 0.27 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 843.93 254.26 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 72.97 99.17 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27449 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1014 460.3 1035 455 1054 450 1104 437.04 1149 437.04 1199 450 1220 455 1245 456 1280 457.6 1322 455 1354 455 1368 456.4 1413 455 1427 450 1470 435.6 1485 435.7 1499 450 1521 455 1534 457.5 1545 455 1574 451 1645 451 1843 450 2018 449.8 2182 450 2472 451 2707 452 2734 455 2761 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1014 .05 1054 .04 1413 .065 1427 .04 1499 .07 1574 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1014 1534 240 284 248 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.25 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.041 0.045 E.G. Elev (ft) 451.42 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) Flow Area (sq ft) 2139.38 849.41 E.G. Slope (ft /ft) 0.000510 Area (sq ft) 2139.38 849.41 Q Total (cfs) 7870.00 Flow (cfs) 7285.05 584.95 Top Width (ft) 1194.68 Top Width (ft) 236.01 958.67 Vel Total (ft /s) 2.63 Avg. Vel. (ft /s) 3.41 0.69 Max Chl Dpth (ft) 15.65 Hydr. Depth (ft) 9.06 0.89 Existing Condition HEC-RAS Model - Page 43 Conv. Total (cfs) 348414.4 Conv. (cfs) 322518.1 25896.4 Length Wtd. (ft) 276.80 Wetted Per. (ft) 248.34 958.70 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.27 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.93 0.02 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 636.62 32.05 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 56.16 31.30 Warning - Divided flow computed for this cross - section. 1189 450 1218 455 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat 451.5 1553 450.3 W.S. Elev (ft) 456.00 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 459 0.044 0.045 E.G. Elev (ft) 456.09 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) n Val Flow Area (sq ft) n Val 3503.64 6328.10 E.G. Slope (ft /ft) 0.000407 Area (sq ft) .045 3503.64 6328.10 Q Total (cfs) 22468.00 Flow (cfs) Expan. 9687.75 12780.25 Top Width (ft) 1617.91 Top Width (ft) .3 417.73 1200.18 Vel Total (ft /s) 2.29 Avg. Vel. (ft /s) 2.77 2.02 Max Chl Dpth (ft) 20.40 Hydr. Depth (ft) Right OB 8.39 5.27 Conv. Total (cfs) 1113651.3 Conv. (cfs) 0.045 480184.2 633467.1 Length Wtd. (ft) 261.43 Wetted Per. (ft) 201.00 432.39 1200.82 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 2073.39 0.21 0.13 Alpha 1.08 Stream Power (lb /ft s) 2073.39 0.57 0.27 Frctn Loss (ft) 0.10 Cum Volume (acre -ft) 341.00 820.30 216.69 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 70.46 92.06 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27165 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 985 461.5 1011 455 1038 450 1090 436.9 1137 436.1 1189 450 1218 455 1239 458 1270 458.5 1308 459 1340 459 1381 458 1403 455 1429 451.5 1553 450.3 1606 450 1747 449 1855 448.3 2063 448.3 2198 449 2435 449 2460 450 2607 455 2658 459 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 985 .05 1038 .04 1189 .07 1553 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 985 1308 240 284 201 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.13 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 451.27 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) Flow Area (sq ft) 1514.35 2073.39 E.G. Slope (ft /ft) 0.000514 Area (sq ft) 1514.35 2073.39 Q Total (cfs) 7870.00 Flow (cfs) 5305.31 2564.69 Top Width (ft) 1189.70 Top Width (ft) 163.66 1026.04 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 3.50 1.24 Max Chl Dpth (ft) 15.03 Hydr. Depth (ft) 9.25 2.02 Conv. Total (cfs) 347076.8 Conv. (cfs) 233970.8 113106.0 Length Wtd. (ft) 270.48 Wetted Per. (ft) 167.32 1026.09 Min Ch E1 (ft) 436.10 Shear (lb /sq ft) 0.29 0.06 Alpha 1.82 Stream Power (lb /ft s) 1.02 0.08 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 624.71 23.73 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 54.86 25.65 Warning - Divided flow computed for this cross - section. Existing Condition HEC -RAS Model - Page 44 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.91 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. Sta 0.047 0.046 E.G. Elev (ft) 455.99 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) 455 Flow Area (sq ft) 450 2423.42 7548.40 E.G. Slope (ft /ft) 0.000350 Area (sq ft) 1265 2423.42 7548.40 Q Total (cfs) 22468.00 Flow (cfs) 1304 7081.60 15386.40 Top Width (ft) 1439.14 Top Width (ft) 450 216.96 1222.18 Vel Total (ft /s) 2.25 Avg. Vel. (ft /s) 1530 2.92 2.04 Max Chl Dpth (ft) 19.81 Hydr. Depth (ft) 1666 11.17 6.18 Conv. Total (cfs) 1201199.8 Conv. (cfs) 455 378601.4 822598.3 Length Wtd. (ft) 252.74 Wetted Per. (ft) 2214 221.48 1222.63 Min Ch E1 (ft) 436.10 Shear (lb /sq ft) 2342 0.24 0.13 Alpha 1.09 Stream Power (lb /ft s) 454 0.70 0.27 Frctn Loss (ft) 0.15 Cum Volume (acre -ft) 341.00 800.98 177.19 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 68.40 85.16 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26880 INPUT Description: AHH CROSS SECTION - 16 APRIL '92 NOTE: SECTIONS 268 +80 THRU 313 +35 FROM TOPOGRAPHY OF COPPELL COMMUNITY PARK FLOWN FEBRUARY 1992. Station Elevation Data num= 35 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1012 461.5 1038 455 1060 450 1113 436.76 1188 436.76 1241 450 1265 455 1276 457 1286 458 1304 458.7 1371 458 1407 455 1444 450 1468 436.2 1488 436.4 1521 450 1530 455 1585 457.5 1634 457 1666 456 1708 455.4 1767 455.3 1820 455 1889 454 2084 453.8 2133 454 2214 454.1 2300 454 2327 453.8 2342 454 2423 454.2 2481 454 2634 454 2683 455 2761 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1012 .05 1060 .04 1241 .065 1444 .04 1521 .07 Existing Condition HEC -RAS Model - Page 45 1634 .045 Elevation Data num= 42 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. Elev 1012 1585 Elev 32 50 479 .1 .3 Elev CROSS SECTION OUTPUT Profile #2 -year ultimate 464.9 600 461.9 W.S. Elev (ft) 451.01 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 451.3 0.042 451.2 E.G. Elev (ft) 451.15 Reach Len. (ft) 32.00 50.00 479.00 Crit W.S. (ft) 452.8 Flow Area (sq ft) 452.4 2628.84 453.2 E.G. Slope (ft /ft) 0.000367 Area (sq ft) 2628.84 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 276.59 Top Width (ft) 276.59 Vel Total (ft /s) 2.99 Avg. Vel. (ft /s) 2.99 Max Chl Dpth (ft) 14.81 Hydr. Depth (ft) 9.50 Conv. Total (cfs) 410777.7 Conv. (cfs) 410777.7 Length Wtd. (ft) 50.00 Wetted Per. (ft) 286.78 Min Ch El (ft) 436.20 Shear (lb /sq ft) 0.21 Alpha 1.00 Stream Power (lb /ft s) 0.63 Frctn Loss (ft) 0.02 Cum Volume (acre -ft) 198.37 611.20 18.94 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 53.42 23.28 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.42 Element Left OB Channel Right OB Vel Head (ft) 0.39 Wt. n -Val. 0.047 0.045 E.G. Elev (ft) 455.81 Reach Len. (ft) 32.00 50.00 479.00 Crit W.S. (ft) Flow Area (sq ft) 4029.76 1193.54 E.G. Slope (ft /ft) 0.001179 Area (sq ft) 4029.76 1193.54 Q Total (cfs) 22468.00 Flow (cfs) 20929.79 1538.21 Top Width (ft) 1352.94 Top Width (ft) 368.29 984.64 Vel Total (ft /s) 4.30 Avg. Vel. (ft /s) 5.19 1.29 Max Chl Dpth (ft) 19.22 Hydr. Depth (ft) 10.94 1.21 Conv. Total (cfs) 654429.7 Conv. (cfs) 609625.8 44803.9 Length Wtd. (ft) 103.71 Wetted Per. (ft) 380.76 984.67 Min Ch E1 (ft) 436.20 Shear (lb /sq ft) 0.78 0.09 Alpha 1.36 Stream Power (lb /ft s) 4.04 0.11 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 779.94 157.02 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 66.49 80.07 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26830 INPUT Description: * * * ** SECTION "B" * * * ** FROM KIMLEY -HORN MODEL. -- Normal Pool Elev. set =445.5 Station Elevation Data num= 42 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 550 464.9 600 461.9 700 459.1 800 455.9 900 452.9 1000 451.7 1100 451.3 1200 451.2 1300 450.9 1400 451.1 1500 452.8 1600 452.8 1700 452.4 1800 453.2 1900 453.1 Existing Condition HEC -RAS Model - Page 46 2000 453.3 2100 454.2 2200 454.4 2300 455.3 2500 455.9 2600 457.6 2619.58 457.35 2702 436.74 2818.65 456.91 2900 457.8 3000 451.6 3005 448.7 3062 436.5 3100 452 3200 454 3230 452 3500 452 3650 452 3920 452 4000 456.3 5100 461.9 5200 465 Right OB Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta 550 .055 2619.58 .035 2818.65 .055 2900 Bank Sta: Left Right Lengths: Left Channel Right 2619.58 3100 CROSS SECTION OUTPUT 1030 1050 960 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 550 2619.58 470 5200 5200 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.94 Element Vel Head (ft) 0.19 Wt. n -Val. E.G. Elev (ft) 451.13 Reach Len. (ft) Crit W.S. (ft) 960.00 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000362 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 245.83 Top Width (ft) Vel Total (ft /s) 3.46 Avg. Vel. (ft /s) Max Chl Dpth (ft) 14.64 Hydr. Depth (ft) Conv. Total (cfs) 413802.5 Conv. (cfs) Length Wtd. (ft) 1050.00 Wetted Per. (ft) Min Ch E1 (ft) 436.30 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.02 Cum SA (acres) 2400 456 2738 436.74 3027 436.3 3290 452 4250 460 n Val Sta n Val .035 3100 .055 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.035 warning - The conveyance 1030.00 1050.00 960.00 conveyance) 2272.14 than 0.7 or greater 2272.14 for additional cross sections. CROSS SECTION OUTPUT 7870.00 -year ultimat 245.83 W.S. Elev (ft) 3.46 Element Left OB 9.24 Right OB Vel Head (ft) 413802.5 Wt. n -Val. 256.02 0.055 E.G. Elev (ft) 0.20 Reach Len. (ft) 1030.00 0.69 960.00 198.37 608.39 18.94 57.13 53.12 23.28 Warning - Divided flow computed for this cross- section. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.36 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 455.71 Reach Len. (ft) 1030.00 1050.00 960.00 Crit W.S. (ft) Flow Area (sq ft) 3566.62 2733.14 E.G. Slope (ft /ft) 0.000679 Area (sq ft) Sta 3566.62 2733.14 Q Total (cfs) 22468.00 Flow (cfs) 460.5 18379.93 4088.07 Top Width (ft) 1228.21 Top Width (ft) 450.4 345.64 882.57 Vel Total (ft /s) 3.57 Avg. Vel. (ft /s) 1300 5.15 1.50 Max Chl Dpth (ft) 19.06 Hydr. Depth (ft) 451.4 10.32 3.10 Conv. Total (cfs) 862098.8 Conv. (cfs) 452.7 705239.2 156859.6 Length Wtd. (ft) 1041.80 Wetted Per. (ft) 2300 357.42 882.75 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 436.73 0.42 0.13 Alpha 1.74 Stream Power (lb /ft s) 434.6 2.18 0.20 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 341.00 775.59 135.43 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 66.08 69.81 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 25770 INPUT Description: Station Elevation Data num= 70 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 469.5 600 460.5 700 455.6 800 452.9 900 450.4 1000 449.9 1100 451.1 1200 450.6 1300 451.3 1400 450.8 1500 451 1600 451.4 1700 451.6 1800 451.5 1900 452.7 2000 453.1 2100 453.4 2200 454.2 2300 454.3 2400 455 2495.2 455.33 2570 436.73 2650 436.73 2660 434.6 2710 434.6 Existing Condition HEC -RAS Model - Page 47 2780 456 2845 456.8 2845 470 2920 470 2920 456.8 2940 456.8 2940 470 2990 470 2990 456.8 3010 456.8 3010 470 3060 470 3060 456.8 3095 457.2 3095 470 3145 470 3145 457.2 3165 457.6 3165 470 3210 470 3210 457.6 3230 457.8 3230 470 3280 470 3280 457.8 3300 457.8 3300 470 3350 470 3350 457.8 3370 457.7 3370 470 3420 470 3420 457.7 3440 457.3 3440 470 3490 470 3490 457.3 3510 457.1 3510 470 3540 470 3540 457.1 3555 456 3590 456 3600 459.6 4360 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .055 2495.2 .035 2780 .065 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2495.2 2780 240 240 240 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 500 2494 470 2780 4360 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.75 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.035 E.G. Elev (ft) 450.86 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 2901.81 E.G. Slope (ft /ft) 0.000158 Area (sq ft) 2901.81 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 249.21 Top Width (ft) 249.21 Vel Total (ft /s) 2.71 Avg. Vel. (ft /s) 2.71 Max Chl Dpth (ft) 16.15 Hydr. Depth (ft) 11.64 Conv. Total (cfs) 625627.1 Conv. (cfs) 625627.1 Length Wtd. (ft) 240.00 Wetted Per. (ft) 253.56 Min Ch E1 (ft) 434.60 Shear (lb /sq ft) 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 198.37 546.03 18.94 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 47.16 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.53 Element Left OB Channel Right OB Vel Head (ft) 0.52 Wt. n -Val. 0.035 E.G. Elev (ft) 455.05 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 3897.10 E.G. Slope (ft /ft) 0.000557 Area (sq ft) 3897.10 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 276.81 Top Width (ft) 276.81 Vel Total (ft /s) 5.77 Avg. Vel. (ft /s) 5.77 Max Chl Dpth (ft) 19.93 Hydr. Depth (ft) 14.08 Conv. Total (cfs) 952361.4 Conv. (cfs) 952361.4 Length Wtd. (ft) 240.00 Wetted Per. (ft) 282.19 Min Ch E1 (ft) 434.60 Shear (lb /sq ft) 0.48 Alpha 1.00 Stream Power (lb /ft s) 2.77 Frctn Loss (ft) 0.17 Cum Volume (acre -ft) 341.00 685.63 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 58.58 60.08 CROSS SECTION REACH: Reach -1 INPUT Description: RIVER: RIVER -1 RS: 25530 FROM KIMLEY -HORN MODEL. CHANNEL DISTANCE REVISED. Existing Condition HEC -RAS Model - Page 48 Station Elevation Data num= 90 Sta Elev Sta Elev Sta 500 469.5 600 460.5 700 1000 449.9 1100 451.1 1200 1500 451 1600 451.4 1700 2000 453.1 2100 453.4 2200 2495.2 455.33 2570 436.63 2627.2 2742.67 454.8 2780 453.5 2820 2880 455 2905 454.7 2935 3020 470 3020 456.5 3030 3090 456.8 3100 456.8 3100 3170 456.9 3170 470 3240 3250 470 3315 470 3315 3385 470 3385 457.8 3395 3455 458.1 3465 458.1 3465 3540 457.2 3540 470 3590 3650 455.9 3680 456.9 3680 3765 457.6 3765 470 3825 3840 470 3905 470 3905 3980 470 3980 458.7 4000 Manning's n Values num= 3 Sta n Val Sta n Val Sta 500 .055 2495.2 .035 2742.67 Bank Sta: Left Right Lengths: Left C 2495.2 2742.67 700 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R 500 2494 470 2742.67 4600 Elev Sta 455.6 800 450.6 1300 451.6 1800 454.2 2300 436.63 2630 454 2820 454.7 2965 456.5 3030 470 3160 470 3240 457.9 3325 457.8 3395 470 3525 470 3590 470 3750 470 3825 458.4 3920 458.7 4000 n Val .065 hannel Right 700 560 Elev 470 CROSS SECTION OUTPUT Profile #2 -year ultimate Elev Sta Elev 452.9 900 450.4 451.3 1400 450.8 451.5 1900 452.7 454.3 2400 455 434.5 2670 434.4 470 2880 470 455.3 2965 470 470 3090 470 470 3160 456.8 457.8 3250 457.8 457.9 3325 470 470 3455 470 470 3525 457.2 457 3620 455.9 470 3750 457.6 458 3840 458 458.4 3920 470 470 4600 470 Coeff Contr. Expan. .1 .3 W.S. Elev (ft) 450.64 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.035 E.G. Elev (ft) 450.81 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 2352.78 E.G. Slope (ft /ft) 0.000261 Area (sq ft) 2352.78 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 213.87 Top Width (ft) 213.87 Vel Total (ft /s) 3.34 Avg. Vel. (ft /s) 3.34 Max Chl Dpth (ft) 16.24 Hydr. Depth (ft) 11.00 Conv. Total (cfs) 487009.9 Conv. (cfs) 487009.9 Length Wtd. (ft) 700.00 Wetted Per. (ft) 218.54 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.18 Alpha 1.00 Stream Power (lb /ft s) 0.59 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 531.55 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 45.88 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.05 Element Left OB Channel Right OB Vel Head (ft) 0.80 Wt. n -Val. 0.035 E.G. Elev (ft) 454.85 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 3126.24 E.G. Slope (ft /ft) 0.000962 Area (sq ft) 3126.24 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 239.66 Top Width (ft) 239.66 Vel Total (ft /s) 7.19 Avg. Vel. (ft /s) 7.19 Max Chl Dpth (ft) 19.65 Hydr. Depth (ft) 13.04 Conv. Total (cfs) 724299.7 Conv. (cfs) 724299.7 Length Wtd. (ft) 700.00 Wetted Per. (ft) 245.23 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.77 Alpha 1.00 Stream Power (lb /ft s) 5.50 Frctn Loss (ft) 0.47 Cum Volume (acre -ft) 341.00 666.28 105.32 C & E Loss (ft) 0.14 Cum SA (acres) 62.57 57.15 60.08 Existing Condition HEC -R4S Model - Page 49 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24700 INPUT Description: * * * * * * * * ** KH- PARCHE MODEL COORDINATION 24700 - 39440 CROSS SECTION 24700 IS FROM THE KIMLEY -HORN MODEL. * * * ** SECTION "A" * * * ** Station Elevation Data num= 53 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465 1120 462 1140 462 1230 460 1300 460 1410 457 1550 455 1650 454 1870 453 2080 452 2180 451 2260 450 2630 451 2910 451 2980 451 3180 452 3340 452 3530 452 3800 453 4000 453 4110 453 4188.16 453 4260 435.04 4350 435.04 4424.38 453.63 4450 454 4480 455 4510 455 4780 454 4800 454 4850 455 5000 451 5060 451 5140 440 5155 433.9 5170 440 5200 456 5260 456.3 5300 456.6 5400 456.9 5630 457 5800 458.4 5900 459 5970 459.4 6050 459.7 6140 459.9 6360 459 6410 458.5 6480 458.3 6500 458.7 6580 459.2 6670 460 6690 462 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .055 4188.16 .035 4424.38 .055 5060 .035 5200 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5060 5200 610 350 80 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4187 470 5200 6690 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.55 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.035 0.035 E.G. Elev (ft) 450.65 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) Flow Area (sq ft) 2359.19 917.63 E.G. Slope (ft /ft) 0.000155 Area (sq ft) 2359.19 917.63 Q Total (cfs) 7870.00 Flow (cfs) 6105.03 1764.97 Top Width (ft) 340.68 Top Width (ft) 214.13 126.55 Vel Total (ft /s) 2.40 Avg. Vel. (ft /s) 2.59 1.92 Max Chl Dpth (ft) 16.65 Hydr. Depth (ft) 11.02 7.25 Conv. Total (cfs) 631800.3 Conv. (cfs) 490109.0 141691.3 Length Wtd. (ft) 450.84 Wetted Per. (ft) 217.95 132.29 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.10 0.07 Alpha 1.04 Stream Power (lb /ft s) 0.27 0.13 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 179.42 505.28 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 55.40 43.14 23.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat Existing Condition HEC -RAS Model - Page 50 W.S. Elev (ft) 453.90 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.035 0.035 Sta E.G. Elev (ft) 454.24 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) 452 Flow Area (sq ft) 3452.63 1361.24 1340 452 1540 E.G. Slope (ft /ft) 0.000501 Area (sq ft) 3452.63 1361.24 449 Q Total (cfs) 22468.00 Flow (cfs) 16650.83 5817.17 3870 452 4090 Top Width (ft) 560.57 Top Width (ft) 424.51 136.06 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 4.82 4.27 433.5 Max Chl Dpth (ft) 20.00 Hydr. Depth (ft) 8.13 10.00 6490 Conv. Total (cfs) 1004106.4 Conv. (cfs) 744133.9 259972.5 457.8 Length Wtd. (ft) 446.34 Wetted Per. (ft) 429.95 142.67 9240 457.5 9440 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.25 0.30 457.5 Alpha 1.01 Stream Power (lb /ft s) 1.21 1.27 Manning's n Values Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 313.26 630.23 105.32 C & E Loss (ft) 0.07 Cum SA (acres) 59.16 54.13 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24400 INPUT Description: Approximate Location of MacArthur Crossing - -Not included in this hydraulic model. Station Elevation Data num= 43 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465 1040 460 1090 457.5 1140 459.5 1200 452 1240 452 1270 457 1340 452 1540 450.5 1700 450 1940 450 2200 449 2790 450 3250 450 3340 451 3870 452 4090 451 5000 451 5220 452 5240 459.5 5260 459.2 5280 452.3 5310 452 5365 433.5 5445 433.5 5510 451.5 5600 453 5950 456.5 6340 453 6490 446 6640 431.5 6820 452 6940 456 7120 457.8 7430 459 7670 459.9 9020 458 9240 457.5 9440 458 9940 458.5 11240 457 12240 457.5 12560 458 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .055 5260 .035 5510 .055 6340 .035 6940 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5260 6940 130 550 230 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5260 470 6940 12560 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.57 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n -Val. 0.035 E.G. Elev (ft) 450.59 Reach Len. (ft) 130.00 550.00 230.00 Crit W.S. (ft) Flow Area (sq ft) 5915.40 E.G. Slope (ft /ft) 0.000047 Area (sq ft) 5915.40 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 607.59 Top Width (ft) 607.59 Vel Total (ft /s) 1.33 Avg. Vel. (ft /s) 1.33 Max Chl Dpth (ft) 19.07 Hydr. Depth (ft) 9.74 Conv. Total (cfs) 1150991.9 Conv. (cfs) 1150991.9 Length Wtd. (ft) 382.15 Wetted Per. (ft) 614.59 Min Ch E1 (ft) 431.50 Shear (lb /sq ft) 0.03 Alpha 1.00 Stream Power (lb /ft s) 0.04 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 162.90 477.83 18.94 Existing Condition HEGRAS Model - Page 51 C & E Loss (ft) 0.01 Cum SA (acres) 53.91 40.20 23.28 Warning - Divided flow computed for this cross - section. Crit W.S. (ft) Flow Area (sq ft) Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat 2.32 Avg. Vel. (ft /s) Max Chl Dpth (ft) W.S. Elev (ft) 453.94 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 433.30 0.035 E.G. Elev (ft) 454.05 Reach Len. (ft) 130.00 550.00 230.00 Crit W.S. (ft) Flow Area (sq ft) 8489.44 E.G. Slope (ft /ft) 0.000173 Area (sq ft) 8489.44 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 1060.99 Top Width (ft) 1060.99 Vel Total (ft /s) 2.65 Avg. Vel. (ft /s) 2.65 Max Chl Dpth (ft) 22.44 Hydr. Depth (ft) 8.00 Conv. Total (cfs) 1707544.8 Conv. (cfs) 1707544.8 Length Wtd. (ft) 375.80 Wetted Per. (ft) 1068.82 Min Ch E1 (ft) 431.50 Shear (lb /sq ft) 0.09 Alpha 1.00 Stream Power (lb /ft s) 0.23 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 289.08 590.65 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 56.19 49.33 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 23800 INPUT Description: Station Elevation Data num= 52 Sta Elev Sta Elev Sta Elev 1000 465 1110 460 1190 457 1480 455 1590 454 1740 453 2110 450 2820 449 2850 449 3350 450 3410 450 3440 451 4140 451 4190 450.4 4240 451 5280 451 5380 451 5468.04 451.42 5694.28 452 5820 454 5940 454 6390 454 6410 455 6510 455 6640 440 6660 433.3 6680 440 7070 453 7239 454 7240 454 7470 460 7550 470 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val 1000 .055 5468.04 .035 5694.28 .055 Bank Sta: Left Right Lengths: Left Channel 6610 7000 720 1430 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5467 470 7550 7550 470 CROSS SECTION OUTPUT Profile #2 -year ultimate Sta Elev 1280 456 1860 452 3280 450 3540 451 4380 451 5535 434.68 5970 455 6610 450 6700 450 7280 450 Sta Elev 1340 455 1950 451 3300 450 3630 451 4900 450.6 5625 434.68 6310 455 6620 450 7000 454 7350 455 Sta n Val Sta n Val 6610 .035 7000 .055 Right Coeff Contr. Expan. 680 .1 .3 W.S. Elev (ft) 450.47 Element Vel Head (ft) 0.09 Wt. n -Val. E.G. Elev (ft) 450.56 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000145 Area (sq ft) Q Total (cfs) 7432.00 Flow (cfs) Top Width (ft) 362.09 Top Width (ft) Vel Total (ft /s) 2.32 Avg. Vel. (ft /s) Max Chl Dpth (ft) 17.17 Hydr. Depth (ft) Conv. Total (cfs) 616480.2 Conv. (cfs) Length Wtd. (ft) 1137.90 Wetted Per. (ft) Min Ch E1 (ft) 433.30 Shear (lb /sq ft) Left OB 0.035 720.00 2420.32 2420.32 6114.91 225.68 2.53 10.72 507228.2 229.58 0.10 Channel 0.035 1430.00 784.43 784.43 1316.77 125.16 1.68 6.27 109225.0 132.07 0.05 Right OB 0.055 680.00 2.64 2.64 0.33 11.25 0.12 0.23 27.0 11.29 0.00 Existing Condition HEC -RAS Model - Page 52 Alpha 1.07 Stream Power (lb /ft s) 0.24 0.09 0.00 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 159.29 435.53 18.93 C & E Loss (ft) 0.01 Cum SA (acres) 53.57 35.57 23.25 Warning - Divided flow computed for this cross - section. 1750 449 1950 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat 4370 449.5 4970 450.5 W.S. Elev (ft) 453.46 Element Left OB Channel Right OB Vel Head (ft) 0.44 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 453.90 Reach Len. (ft) 720.00 1430.00 680.00 Crit W.S. (ft) 454 Flow Area (sq ft) 3278.65 1495.63 169.66 E.G. Slope (ft /ft) 0.000633 Area (sq ft) 3278.65 1495.63 169.66 Q Total (cfs) 23083.00 Flow (cfs) 18780.81 4154.78 147.41 Top Width (ft) 932.30 Top Width (ft) 388.56 349.78 193.96 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 5.73 2.78 0.87 Max Chl Dpth (ft) 20.16 Hydr. Depth (ft) 8.44 4.28 0.87 Conv. Total (cfs) 917287.8 Conv. (cfs) 746324.5 165105.3 5858.0 Length Wtd. (ft) 1137.86 Wetted Per. (ft) 394.90 356.71 194.26 Min Ch E1 (ft) 433.30 Shear (lb /sq ft) 0.33 0.17 0.03 Alpha 1.29 Stream Power (lb /ft s) 1.88 0.46 0.03 Frctn Loss (ft) 0.56 Cum Volume (acre -ft) 284.19 527.61 104.87 C & E Loss (ft) 0.02 Cum SA (acres) 55.61 40.42 59.57 Warning - Divided flow computed for this cross- section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 22370 INPUT Description: IMPORTED FROM DOWDY MODEL 89123PM.DAT - 05/21/92 Station Elevation Data num= 28 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1300 449 1750 449 1950 448 2550 448 2950 450 3670 450 4010 449 4070 448 4370 449.5 4970 450.5 5094 450.5 5160 434.04 5220 434.04 5280 434.04 5320 432.5 5345 435 5360 445 5380 446 5405 452.7 5460 454.5 5870 454 6310 452.5 6480 452 6550 453.5 6610 457 6630 459.5 6780 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1300 .06 5094 .035 5460 .055 6610 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5094 5460 800 800 400 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5094 470 6780 6780 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.38 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.035 E.G. Elev (ft) 450.44 Reach Len. (ft) 800.00 800.00 400.00 Existing Condition HEC -R4S Model - Page 53 Crit W.S. (ft) Flow Area (sq ft) 3885.75 E.G. Slope (ft /ft) 0.000069 Area (sq ft) 3885.75 Q Total (cfs) 7432.00 Flow (cfs) 7432.00 Top Width (ft) 301.87 Top Width (ft) 301.87 Vel Total (ft /s) 1.91 Avg. Vel. (ft /s) 1.91 Max Chl Dpth (ft) 17.88 Hydr. Depth (ft) 12.87 Conv. Total (cfs) 894681.1 Conv. (cfs) 894681.1 Length Wtd. (ft) 800.00 Wetted Per. (ft) 307.66 Min Ch E1 (ft) 432.50 Shear (lb /sq ft) 0.05 Alpha 1.00 Stream Power (lb /ft s) 0.10 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 139.28 358.87 18.91 C & E Loss (ft) 0.00 Cum SA (acres) 51.70 28.56 23.16 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.95 Element Left OB Channel Right OB Vel Head (ft) 0.38 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 453.33 Reach Len. (ft) 800.00 800.00 400.00 Crit W.S. (ft) Flow Area (sq ft) 4675.59 169.88 E.G. Slope (ft /ft) 0.000388 Area (sq ft) 4675.59 169.88 Q Total (cfs) 23083.00 Flow (cfs) 23026.78 56.22 Top Width (ft) 665.10 Top Width (ft) 318.65 346.45 Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) 4.92 0.33 Max Chl Dpth (ft) 20.45 Hydr. Depth (ft) 14.67 0.49 Conv. Total (cfs) 1171724.9 Conv. (cfs) 1168871.0 2853.8 Length Wtd. (ft) 798.69 Wetted Per. (ft) 327.21 346.46 Min Ch E1 (ft) 432.50 Shear (lb /sq ft) 0.35 0.01 Alpha 1.07 Stream Power (lb /ft s) 1.71 0.00 Frctn Loss (ft) 0.27 Cum Volume (acre -ft) 257.10 426.32 102.22 C & E Loss (ft) 0.02 Cum SA (acres) 52.40 29.45 55.35 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 21560 INPUT Description: Station Elevation Data num= 54 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1200 455 1250 454 1290 454 1320 453 1360 452 1450 451 1480 450 1570 449 1800 448 2050 448.2 2500 449 2730 449 3050 448.5 3260 449 3400 449 3520 449.7 3700 450 3800 449 3900 449 3920 450 4170 448 4250 449 4280 450 4340 451 4420 451 4500 452 4820 452 4939.61 452.8 5020 432.7 5100 432.7 5140 432.58 5180 432.46 5200 432.4 5220 438 5270 454 5300 455 5340 455 5360 455 5460 454 5630 453 5780 452 5790 452 5850 451 5870 451 5880 453 5920 453 5970 453 6150 452 6220 452 6270 453 6340 455 6450 460 6540 465 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 4939.61 .035 5300 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4939.61 5300 1600 1450 1150 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4939 470 6540 6540 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.34 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.035 E.G. Elev (ft) 450.39 Reach Len. (ft) 1600.00 1450.00 1150.00 Crit W.S. (ft) Flow Area (sq ft) 4354.30 E.G. Slope (ft /ft) 0.000049 Area (sq ft) 4354.30 Q Total (cfs) 7432.00 Flow (cfs) 7432.00 Top Width (ft) 309.14 Top Width (ft) 309.14 Existing Condition HEC -RAS Model - Page 54 Vel Total (ft /s) 1.71 Avg. Vel. (ft /s) 1.71 Max Chl Dpth (ft) 17.94 Hydr. Depth (ft) 14.09 Conv. Total (cfs) 1066997.1 Conv. (cfs) 1066997.1 Length Wtd. (ft) 1451.78 Wetted Per. (ft) 314.01 Min Ch El (ft) 432.40 Shear (lb /sq ft) 0.04 Alpha 1.00 Stream Power (lb /ft s) 0.07 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 139.28 283.21 C & E Loss (ft) 0.01 Cum SA (acres) 51.70 22.95 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.73 Element Left OB Channel Vel Head (ft) 0.31 Wt. n -Val. 0.035 E.G. Elev (ft) 453.04 Reach Len. (ft) 1600.00 1450.00 Crit W.S. (ft) Flow Area (sq ft) 5111.20 E.G. Slope (ft /ft) 0.000293 Area (sq ft) 5111.20 Q Total (cfs) 23083.00 Flow (cfs) 22988.10 Top Width (ft) 770.84 Top Width (ft) 326.12 Vel Total (ft /s) 4.29 Avg. Vel. (ft /s) 4.50 Max Chl Dpth (ft) 20.33 Hydr. Depth (ft) 15.67 Conv. Total (cfs) 1349378.4 Conv. (cfs) 1343831.0 Length Wtd. (ft) 1451.13 Wetted Per. (ft) 331.65 Min Ch E1 (ft) 432.40 Shear (lb /sq ft) 0.28 Alpha 1.10 Stream Power (lb /ft s) 1.27 Frctn Loss (ft) 0.29 Cum Volume (acre -ft) 257.10 336.45 C & E Loss (ft) 0.05 Cum SA (acres) 52.40 23.53 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19930 INPUT Description: Station Elevation Data num= 55 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 454.3 1040 450 1160 448 1190 449 1210 449 1220 448 1320 448 1330 449 1460 450 1520 450 1530 449 1900 447.2 2170 447 2280 446.2 2420 446.4 2540 447 3070 447 3240 446.3 3350 446 3360 445 3370 445 3380 446 3460 447 3750 447.5 4070 447 4090 447 4150 448 4300 448.5 4660 448.5 4960 448.5 5130 448.5 5400 448.5 5600 448.5 5700 448.5 5704 448.5 5770 432 5930 432 5996 448.5 6050 448.5 6070 448.5 6110 437 6130 432 6150 437 6190 453 6220 453 6440 452 6550 451 6650 450 6840 449 6900 449 6920 450 7030 451 7070 452 7130 453 7350 460 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .045 5704 .035 5996 .045 6070 .035 6190 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5704 6190 800 600 550 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5208 470 7350 7350 470 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Vel Head (ft) 0.02 Wt. n -Val. 0.045 0.035 E.G. Elev (ft) 450.33 Reach Len. (ft) 800.00 600.00 Crit W.S. (ft) Flow Area (sq ft) 894.16 5544.22 E.G. Slope (ft /ft) 0.000030 Area (sq ft) 894.16 5544.22 Q Total (cfs) 7432.00 Flow (cfs) 240.60 7159.35 Top Width (ft) 1308.83 Top Width (ft) 496.00 479.26 Vel Total (ft /s) 1.11 Avg. Vel. (ft /s) 0.27 1.29 Max Chl Dpth (ft) 18.30 Hydr. Depth (ft) 1.80 11.57 Conv. Total (cfs) 1347631.5 Conv. (cfs) 43628.1 1298192.6 Length Wtd. (ft) 632.75 Wetted Per. (ft) 497.80 488.73 18.91 23.16 Right OB 0.055 1150.00 274.00 274.00 94.90 444.73 0.35 0.62 5547.3 444.92 0.01 0.00 100.18 51.72 Right OB 0.055 550.00 256.36 256.36 32.05 333.57 0.13 0.77 5810.7 333.60 Existing Condition HEC-RAS Model - Page 55 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.00 0.02 0.00 Alpha 1.31 Stream Power (lb /ft s) 0.00 0.03 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre -ft) 122.86 118.46 15.53 C & E Loss (ft) 0.00 Cum SA (acres) 42.59 9.83 18.76 Warning - Divided flow computed for this cross- section. 5490 448 5551.8 CROSS SECTION OUTPUT Profile #100 -year ultimat 5870 5965 453 W.S. Elev (ft) 452.57 Element Left OB Channel Right OB Vel Head (ft) 0.13 Wt. n -Val. 0.045 0.035 0.055 E.G. Elev (ft) 452.69 Reach Len. (ft) 800.00 600.00 550.00 Crit W.S. (ft) 4050 Flow Area (sq ft) 2016.39 6634.98 1495.88 E.G. Slope (ft /ft) 0.000145 Area (sq ft) 2016.39 6634.98 1495.88 Q Total (cfs) 23083.00 Flow (cfs) 2029.29 20308.52 745.20 Top Width (ft) 1769.20 Top Width (ft) 496.00 484.91 788.29 Vel Total (ft /s) 2.27 Avg. Vel. (ft /s) 1.01 3.06 0.50 Max Chl Dpth (ft) 20.57 Hydr. Depth (ft) 4.07 13.68 1.90 Conv. Total (cfs) 1918692.4 Conv. (cfs) 168677.3 1688073.3 61941.9 Length Wtd. (ft) 648.13 Wetted Per. (ft) 500.07 494.82 788.35 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.04 0.12 0.02 Alpha 1.61 Stream Power (lb /ft s) 0.04 0.37 0.01 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 220.06 140.95 76.82 C & E Loss (ft) 0.03 Cum SA (acres) 43.29 10.03 35.44 Warning - Divided flow computed for this cross- section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19330 INPUT Description: Station Elevation Data Sta Elev Sta 1000 454 1050 2410 446 2450 2710 445 2860 2970 446 3020 3250 446.7 3350 3650 447 3710 4080 446 4160 4740 447 4800 5490 448 5551.8 5860 448 5870 5965 453 5975 7035 449 7135 8250 460 447 Manning's n Values 447 Sta n Val Sta 1000 .035 5551.8 num= 61 Element Left OB Channel Right OB Vel Head (ft) Elev Sta Elev Sta Elev Sta Elev 450 1070 448 1750 447.6 2210 447 445 2600 443 2670 443 2680 445 445 2900 444 2920 443 2960 445 446 3040 445 3070 443 3100 447 447 3500 447 3550 446 3600 444 446 3850 446 3940 447 4050 447 446 4450 446 4550 445 4700 446 447 5010 447.3 5040 448 5280 448 448 5617 431.7 5777 431.7 5842.2 448 445 5880 440 5897 431.7 5915 440 453 6205 452 6315 451 6435 450 449 7185 450 7915 455 8215 455 num= 3 n Val Sta n Val .035 5965 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5551.8 5965 650 650 650 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4000 470 8250 8250 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Right OB Vel Head (ft) 0.01 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 450.31 Reach Len. (ft) 650.00 650.00 650.00 Crit W.S. (ft) Flow Area (sq ft) 5334.24 5204.38 659.88 E.G. Slope (ft /ft) 0.000019 Area (sq ft) 5334.24 5204.38 659.88 Q Total (cfs) 7432.00 Flow (cfs) 2217.96 5148.11 65.93 Top Width (ft) 2783.74 Top Width (ft) 1551.80 402.81 829.13 Vel Total (ft /s) 0.66 Avg. Vel. (ft /s) 0.42 0.99 0.10 Max Chl Dpth (ft) 18.60 Hydr. Depth (ft) 3.44 12.92 0.80 Existing Condition HEC -RAS Model - Page 56 Conv. Total (cfs) 1725913.6 Conv. (cfs) 515071.7 1195531.4 15310.6 Length Wtd. (ft) 650.00 Wetted Per. (ft) 1555.14 413.50 829.14 Min Ch E1 (ft) 431.70 Shear (lb /sq ft) 0.00 0.01 0.00 Alpha 2300 1.66 Stream Power (lb /ft s) 0.00 0.01 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 65.67 44.43 9.75 C & E Loss (ft) 0.00 Cum SA (acres) 23.79 3.75 11.42 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #100 -year ultimat 452.57 0.04 452.61 0.000064 23083.00 3448.66 1.27 20.87 2892244.8 650.00 431.70 1.66 0.09 0.00 Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB Channel Right OB 0.035 0.035 0.055 650.00 650.00 650.00 8856.62 6128.60 3234.19 8856.62 6128.60 3234.19 9560.82 12350.68 1171.51 1551.80 411.54 1485.32 1.08 2.02 0.36 5.71 14.89 2.18 1197947.5 1547510.1 146787.0 1557.41 422.52 1485.35 0.02 0.06 0.01 0.02 0.12 0.00 120.22 53.05 46.96 24.49 3.85 21.09 Warning - Divided flow computed for this cross- section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 18440 INPUT Description: Station Elevation Data num= 31 0.035 0.045 0.055 3467.35 750.82 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1300 448 1800 448 2250 447 2300 445 2330 440 2500 440 2600 445 2750 448 5250 448 5350 450 5460 451 5480 449 5515 446 5525 440 5535 434 5545 431.4 5555 431.4 5560 447 5585 451 5700 450 5850 450 6000 448 6230 450 6500 452 6700 450 6780 447 6780 466 6940 450 7440 460 7650 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .035 5480 .045 5585 .055 Bank Sta: Left Right 5480 5585 Blocked Obstructions Sta L Sta R Elev 1000 3750 470 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Lengths: Left Channel Right 10000 5880 4500 UM= 2 Sta L Sta R Elev 7650 7650 470 Profile #2 -year ultimate 450.22 Element 0.05 Wt. n -Val. 450.27 Reach Len. (ft) 445.78 Flow Area (sq ft) 0.000460 Area (sq ft) 7432.00 Flow (cfs) 2438.44 Top Width (ft) 1.53 Avg. Vel. (ft /s) 18.82 Hydr. Depth (ft) 346405.5 Conv. (cfs) Wetted Per. (ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.035 0.045 0.055 3467.35 750.82 646.37 3467.35 750.82 646.37 5216.74 1852.00 363.25 1636.78 100.15 701.51 1.50 2.47 0.56 2.12 7.50 0.92 243152.4 86321.8 16931.3 1639.09 115.57 704.83 Existing Condition HEC-RAS Model - Page 57 Min Ch E1 (ft) 431.40 Shear (lb /sq ft) Alpha 1.34 Stream Power (lb /ft s) Frctn Loss (ft) Cum Volume (acre -ft) C & E Loss (ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.43 Element Vel Head (ft) 0.08 Wt. n -Val. E.G. Elev (ft) 452.52 Reach Len. (ft) Crit W.S. (ft) 449.81 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000460 Area (sq ft) Q Total (cfs) 23083.00 Flow (cfs) Top Width (ft) 3176.06 Top Width (ft) Vel Total (ft /s) 2.04 Avg. Vel. (ft /s) Max Chl Dpth (ft) 21.03 Hydr. Depth (ft) Conv. Total (cfs) 1076005.3 Conv. (cfs) Length Wtd. (ft) 0.23 Wetted Per. (ft) Min Ch E1 (ft) 431.40 Shear (lb /sq ft) Alpha 1.27 Stream Power (lb /ft s) Frctn Loss (ft) Reach -1 Cum Volume (acre -ft) C & E Loss (ft) .05 Cum SA (acres) 0.06 0.19 0.03 0.09 0.46 0.01 Left OB Channel Right OB 0.035 0.045 0.055 7256.44 981.11 3059.34 7256.44 981.11 3059.34 17158.71 2812.99 3111.30 1730.00 105.00 1341.06 2.36 2.87 1.02 4.19 9.34 2.28 799846.9 131126.4 145032.0 1734.56 120.48 1346.74 0.12 0.23 0.07 0.28 0.67 0.07 Warning - Divided flow computed for this cross - section. Warning - The parabolic search method failed to converge on critical depth. The program will try the cross section slice /secant method to find critical depth. SUMMARY OF MANNING'S N VALUES River:RIVER -1 Reach River Sta. n1 n2 n3 n4 n5 n6 n7 n8 n9 n10 Reach -1 56940 .05 .052 .055 .045 .058 .06 Reach -1 55590 .04 .055 .06 .045 .06 .055 Reach -1 53350 .05 .055 .05 .045 .058 .055 Reach -1 51350 .05 .05 .055 .045 .058 .06 Reach -1 48000 .06 .055 .055 .045 .06 .06 Reach -1 40650 .06 .055 .06 .045 .045 .04 Reach -1 39540 .05 .055 .055 .045 .05 .055 Reach -1 39490 .05 .05 .055 .045 .05 .055 Reach -1 39440 .06 .06 .055 .045 .06 .055 Reach -1 39290 .05 .055 .045 .055 .05 Reach -1 38200 .05 .06 .045 .055 .05 Reach -1 36970 .06 .05 .06 .045 .06 .05 Reach -1 34950 .05 .055 .06 .045 .055 Reach -1 34850 .05 .055 .06 .045 .055 .05 Reach -1 34260 .055 .06 .045 .055 Reach -1 33470 .055 .06 .045 .055 Reach -1 33145 .05 .055 .06 .045 .055 Reach -1 32725 .05 .055 .06 .045 .055 .05 Reach -1 32305 .05 .055 .06 .045 .065 .05 Reach -1 32230 .055 .025 .055 .02 .05 Reach -1 32215 Bridge Reach -1 32200 .055 .025 .055 .02 .05 Reach -1 32150 .055 .035 .055 Reach -1 31335 .05 .04 .07 .045 .07 Reach -1 30958 .05 .04 .07 .045 .07 Reach -1 30604 .05 .04 .065 .04 .07 .045 .07 Reach -1 30384 .05 .04 .065 .04 .07 .045 .07 .045 .07 Reach -1 30027 .05 .04 .065 .04 .07 .045 Reach -1 29831 .05 .04 .065 .04 .07 .045 .035 .045 .075 .045 Reach -1 29651 .05 .04 .065 .04 .07 .045 .075 .045 Reach -1 29124 .05 .04 .07 .045 Reach -1 28890 .05 .04 .065 .04 .075 .045 Reach -1 28720 .05 .04 .065 .04 .07 .045 .035 .045 Reach -1 28492 .05 .04 .065 .04 .07 .045 .035 .045 Reach -1 28168 .05 .04 .065 .04 .07 .045 .035 .045 Reach -1 27992 .05 .04 .065 .04 .07 .045 Reach -1 27748 .05 .04 .065 .04 .07 .045 Reach -1 27449 .05 .04 .065 .04 .07 .045 Reach -1 27165 .05 .04 .07 .045 Reach -1 26880 .05 .04 .065 .04 .07 .045 Reach -1 26830 .055 .035 .055 .035 .055 Reach -1 25770 .055 .035 .065 Reach -1 25530 .055 .035 .065 Reach -1 24700 .055 .035 .055 .035 .055 Reach -1 24400 .055 .035 .055 .035 .055 Reach -1 23800 .055 .035 .055 .035 .055 Existing Condition HEC -RAS Model - Page 58 Reach -1 22370 .05 .06 .035 .055 .05 Reach -1 21560 .055 .035 .055 Reach -1 19930 .045 .035 .045 .035 .055 Reach -1 19330 .035 .035 .055 Reach -1 18440 .035 .045 .055 SUMMARY OF REACH LENGTHS River: RIVER -1 Reach River Sta. Left Channel Right Reach -1 56940 1250 1350 1250 Reach -1 55590 2000 2240 2200 Reach -1 53350 1650 2000 1750 Reach -1 51350 3600 3350 3700 Reach -1 48000 5700 7350 2900 Reach -1 40650 1400 1110 800 Reach -1 39540 50 50 50 Reach -1 39490 50 50 50 Reach -1 39440 150 150 280 Reach -1 39290 980 1090 1110 Reach -1 38200 1150 1230 950 Reach -1 36970 2020 2020 2020 Reach -1 34950 110 100 90 Reach -1 34850 520 590 640 Reach -1 34260 830 790 250 Reach -1 33470 315 325 260 Reach -1 33145 385 420 290 Reach -1 32725 380 420 520 Reach -1 32305 55 55 55 Reach -1 32230 50 50 50 Reach -1 32215 Bridge Reach -1 32200 50 50 50 Reach -1 32150 160 170 180 Reach -1 31335 377 377 344 Reach -1 30958 303 354 302 Reach -1 30604 269 220 319 Reach -1 30384 371 357 410 Reach -1 30027 148 196 299 Reach -1 29831 171 180 197 Reach -1 29651 600 527 404 Reach -1 29124 161 234 337 Reach -1 28890 153 170 194 Reach -1 28720 173 228 338 Reach -1 28492 406 324 307 Reach -1 28168 167 176 223 Reach -1 27992 213 244 309 Reach -1 27748 324 299 262 Reach -1 27449 240 284 248 Reach -1 27165 240 284 201 Reach -1 26880 32 50 479 Reach -1 26830 1030 1050 960 Reach -1 25770 240 240 240 Reach -1 25530 700 700 560 Reach -1 24700 610 350 80 Reach -1 24400 130 550 230 Reach -1 23800 720 1430 680 Reach -1 22370 800 800 400 Reach -1 21560 1600 1450 1150 Reach -1 19930 800 600 550 Reach -1 19330 650 650 650 Reach -1 18440 10000 5880 4500 Existing Condition HEC -RAS Model - Page 59 SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS River: RIVER -1 Reach River Sta. Contr. Expan. Reach -1 56940 .1 .3 Reach -1 55590 .1 .3 Reach -1 53350 .1 .3 Reach -1 51350 .1 .3 Reach -1 48000 .1 .3 Reach -1 40650 .1 .3 Reach -1 39540 .1 .3 Reach -1 39490 .1 .3 Reach -1 39440 .1 .3 Reach -1 39290 .1 .3 Reach -1 38200 .1 .3 Reach -1 36970 .1 .3 Reach -1 34950 .3 .5 Reach -1 34850 .3 .5 Reach -1 34260 .3 .5 Reach -1 33470 .3 .5 Reach -1 33145 .3 .5 Reach -1 32725 .3 .5 Reach -1 32305 .5 .7 Reach -1 32230 .5 .7 Reach -1 32215 Bridge Reach -1 32200 .5 .7 Reach -1 32150 .5 .7 Reach -1 31335 .1 .3 Reach -1 30958 .1 .3 Reach -1 30604 .1 .3 Reach -1 30384 .1 .3 Reach -1 30027 .1 .3 Reach -1 29831 .1 .3 Reach -1 29651 .1 .3 Reach -1 29124 .1 .3 Reach -1 28890 .1 .3 Reach -1 28720 .1 .3 Reach -1 28492 .1 .3 Reach -1 28168 .1 .3 Reach -1 27992 .1 .3 Reach -1 27748 .1 .3 Reach -1 27449 .1 .3 Reach -1 27165 .1 .3 Reach -1 26880 .1 .3 Reach -1 26830 .1 .3 Reach -1 25770 .1 .3 Reach -1 25530 .1 .3 Reach -1 24700 .1 .3 Reach -1 24400 .1 .3 Reach -1 23800 .1 .3 Reach -1 22370 .1 .3 Reach -1 21560 .1 .3 Reach -1 19930 .1 .3 Reach -1 19330 .1 .3 Reach -1 18440 .1 .3 Profile Output Table - Standard Table 1 Reach River Sta Q Total Min Ch E1 W.S. Elev Crit W.S. (ft) (cfs) (ft) (ft) (ft) Reach -1 18440 7432.00 431.40 450.22 445.78 Reach -1 18440 23083.00 431.40 452.43 449.81 Reach -1 19330 7432.00 431.70 450.30 10147.25 Reach -1 19330 23083.00 431.70 452.57 0.08 Reach -1 19930 7432.00 432.00 450.30 3885.75 Reach -1 19930 23083.00 432.00 452.57 Reach -1 21560 7432.00 432.40 450.34 Reach -1 21560 23083.00 432.40 452.73 Reach -1 22370 7432.00 432.50 450.38 E.G. Elev E.G. Slope (ft) (ft /ft) 450.27 0.000460 452.52 0.000460 450.31 0.000019 452.61 0.000064 450.33 0.000030 452.69 0.000145 450.39 0.000049 453.04 0.000293 450.44 0.000069 Vel Chnl Flow Area Top Width Froude # Chl (ft /s) (sq ft) (ft) 2.47 4864.54 2438.44 0.16 2.87 11296.88 3176.06 0.17 0.99 11198.50 2783.74 0.05 2.02 18219.41 3448.66 0.09 1.29 6694.74 1308.83 0.07 3.06 10147.25 1769.20 0.15 1.71 4354.30 309.14 0.08 4.50 5385.21 770.84 0.20 1.91 3885.75 301.87 0.09 Existing Condition HEGRAS Model - Page 60 Reach -1 22370 23083.00 432.50 452.95 453.33 0.000388 4.92 4845.47 665.10 0.23 Reach -1 Reach -1 23800 23800 7432.00 23083.00 433.30 433.30 450.47 453.46 450.56 453.90 0.000145 0.000633 1.68 2.78 3207.39 4943.94 362.09 932.30 0.12 0.24 Reach -1 Reach -1 24400 24400 7870.00 22468.00 431.50 431.50 450.57 453.94 450.59 454.05 0.000047 0.000173 1.33 2.65 5915.40 8489.44 607.59 1060.99 0.08 0.16 Reach -1 Reach -1 24700 24700 7870.00 22468.00 433.90 433.90 450.55 453.90 450.65 454.24 0.000155 0.000501 1.92 4.27 3276.81 4813.86 340.68 560.57 0.13 0.24 Reach -1 Reach -1 25530 25530 7870.00 22468.00 434.40 434.40 450.64 454.05 450.81 454.85 0.000261 0.000962 3.34 7.19 2352.78 3126.24 213.87 239.66 0.18 0.35 Reach -1 Reach -1 25770 25770 7870.00 22468.00 434.60 434.60 450.75 454.53 450.86 455.05 0.000158 0.000557 2.71 5.77 2901.81 3897.10 249.21 276.81 0.14 0.27 Reach -1 Reach -1 26830 26830 7870.00 22468.00 436.30 436.30 450.94 455.36 451.13 455.71 0.000362 0.000679 3.46 5.15 2272.14 6299.76 245.83 1228.21 0.20 0.28 Reach -1 Reach -1 26880 26880 7870.00 22468.00 436.20 436.20 451.01 455.42 451.15 455.81 0.000367 0.001179 2.99 5.19 2628.84 5223.30 276.59 1352.94 0.17 0.28 Reach -1 Reach -1 27165 27165 7870.00 22468.00 436.10 436.10 451.13 455.91 451.27 455.99 0.000514 0.000350 3.50 2.92 3587.74 9971.81 1189.70 1439.14 0.20 0.15 Reach -1 Reach -1 27449 27449 7870.00 22468.00 435.60 435.60 451.25 456.00 451.42 456.09 0.000510 0.000407 3.41 2.77 2988.79 9831.74 1194.68 1617.91 0.20 0.17 Reach -1 Reach -1 27748 27748 7870.00 22468.00 435.20 435.20 451.40 456.11 451.57 456.21 0.000519 0.000404 3.43 2.96 2972.46 9541.51 1290.66 1474.77 0.20 0.16 Reach -1 Reach -1 27992 27992 7870.00 22468.00 435.60 435.60 451.60 456.23 451.66 456.29 0.000216 0.000242 2.26 2.40 4947.78 10947.85 1229.11 1366.89 0.13 0.12 Reach -1 Reach -1 28168 28168 7870.00 22468.00 436.60 436.60 451.67 456.28 451.70 456.34 0.000135 0.000160 1.74 1.89 5817.44 11618.78 1180.01 1346.71 0.10 0.10 Reach -1 Reach -1 28492 28492 7870.00 22468.00 436.30 436.30 451.71 456.32 451.74 456.39 0.000131 0.000162 1.71 1.90 5634.38 11018.68 1091.33 1251.92 0.10 0.10 Reach -1 Reach -1 28720 28720 7870.00 22468.00 436.80 436.80 451.74 456.37 451.79 456.45 0.000169 0.000209 1.93 2.27 5074.45 9935.72 986.79 1120.15 0.11 0.12 Reach -1 Reach -1 28890 28890 7870.00 22468.00 437.10 437.10 451.75 456.40 451.85 456.51 0.000421 0.000412 2.92 2.90 3794.24 8656.50 1001.87 1097.63 0.18 0.16 Reach -1 Reach -1 29124 29124 7870.00 22468.00 437.40 437.40 451.82 456.50 451.98 456.66 0.000483 0.000553 3.30 3.75 2896.42 7395.25 862.54 1022.20 0.19 0.20 Reach -1 Reach -1 29651 29651 7870.00 22468.00 438.06 438.06 452.10 456.78 452.19 456.91 0.000349 0.000493 2.71 3.31 3729.31 7908.17 778.96 1105.04 0.16 0.18 Reach -1 Reach -1 29831 29831 7870.00 22468.00 438.14 438.14 452.17 456.85 452.26 457.00 0.000315 0.000423 2.64 3.35 3602.81 7306.64 683.43 964.47 0.16 0.18 Reach -1 Reach -1 30027 30027 7870.00 22468.00 438.23 438.23 452.20 456.91 452.38 457.21 0.000657 0.001265 3.53 4.68 2573.43 5193.07 462.01 677.66 0.21 0.27 Reach -1 Reach -1 30384 30384 7870.00 22468.00 438.14 438.14 452.45 457.32 452.69 457.88 0.001024 0.002105 4.10 6.17 2005.53 3756.82 292.39 456.35 0.26 0.35 Reach -1 Reach -1 30604 30604 7870.00 22468.00 438.55 438.55 452.68 457.95 453.00 458.38 0.001486 0.001863 4.64 5.82 1884.40 4945.58 341.59 880.60 0.31 0.33 Reach -1 Reach -1 30958 30958 7870.00 22468.00 438.55 438.55 453.22 458.56 453.32 458.66 0.000612 0.000426 3.38 2.55 3450.45 8589.79 807.44 1200.90 0.21 0.15 Reach -1 Reach -1 31335 31335 7870.00 22468.00 438.55 438.55 453.22 458.70 453.95 458.92 0.003393 0.001022 7.59 4.77 1490.72 6355.06 550.11 1071.90 0.48 0.26 Reach -1 Reach -1 32150 32150 7870.00 22468.00 437.00 437.00 453.82 458.45 454.29 460.28 0.000606 0.001905 5.49 11.05 1463.08 2550.95 139.44 610.67 0.27 0.48 Reach -1 Reach -1 32200 32200 7870.00 22468.00 435.00 435.00 453.77 458.39 454.55 460.80 0.000965 0.002667 7.19 12.76 1128.04 1819.53 126.17 172.81 0.38 0.64 Reach -1 32215 Bridge Reach -1 Reach -1 32230 32230 7870.00 22468.00 435.00 435.00 453.83 446.44 458.76 455.16 454.60 461.01 0.000948 0.002452 7.13 12.32 1136.23 1884.74 126.83 176.55 0.38 0.61 Reach -1 Reach -1 32305 32305 7870.00 22468.00 437.70 437.70 453.60 458.72 455.55 461.94 0.009217 0.011284 11.36 15.38 744.90 1827.79 138.53 291.16 0.74 0.87 Reach -1 Reach -1 32725 32725 7870.00 22468.00 438.20 438.20 456.78 463.38 457.05 463.51 0.001059 0.000574 4.70 3.89 2414.70 8618.62 546.37 1409.71 0.27 0.20 Reach -1 Reach -1 33145 33145 5645.00 16681.00 438.40 438.40 457.36 463.63 457.46 463.77 0.000688 0.000769 2.46 3.14 2296.17 5825.75 347.21 941.43 0.17 0.19 Reach -1 Reach -1 33470 33470 5645.00 16681.00 439.00 439.00 457.53 463.83 457.69 463.98 0.000523 0.000561 3.19 3.33 1767.14 6186.65 243.52 1066.47 0.21 0.20 Reach -1 Reach -1 34260 34260 5645.00 16681.00 438.80 438.80 458.01 464.22 458.08 464.35 0.000427 0.000418 2.20 2.86 2571.32 6050.68 397.12 803.93 0.15 0.17 Reach -1 34850 5645.00 439.30 458.25 458.63 0.001231 4.95 1140.73 117.92 0.28 Existing Condition HEC -RAS Model - Page 61 Reach -1 34850 16681.00 439.30 464.49 464.95 0.001676 6.13 3833.09 864.79 0.34 Reach -1 34950 5645.00 439.30 458.39 458.76 0.001185 4.88 1156.60 118.62 0.28 Reach -1 34950 16681.00 439.30 464.99 465.16 0.000732 4.12 7025.34 1899.26 0.22 Reach -1 36970 5645.00 440.00 460.93 461.27 0.001308 4.85 1431.13 344.48 0.27 Reach -1 36970 16681.00 440.00 466.66 466.91 0.001013 5.02 5784.31 1500.67 0.26 Reach -1 38200 5645.00 441.00 461.86 461.94 0.000298 2.60 2966.08 666.30 0.14 Reach -1 38200 16681.00 441.00 467.38 467.45 0.000277 2.92 8860.51 1263.49 0.14 Reach -1 39290 5645.00 441.88 462.20 462.30 0.000340 2.87 2934.17 703.23 0.15 Reach -1 39290 16681.00 441.88 467.66 467.76 0.000272 3.29 7879.84 1058.63 0.15 Reach -1 39440 5645.00 442.00 462.11 462.46 0.000903 4.76 1186.30 104.50 0.25 Reach -1 39440 16681.00 442.00 467.43 467.99 0.001200 6.92 4152.41 900.84 0.30 Reach -1 39490 5645.00 442.00 462.37 462.51 0.000465 3.04 1858.72 207.19 0.18 Reach -1 39490 16681.00 442.00 467.78 468.06 0.000753 4.54 4229.88 569.46 0.24 Reach -1 39540 5645.00 442.00 462.26 462.60 0.000871 4.70 1202.28 105.18 0.24 Reach -1 39540 16681.00 442.00 467.70 468.16 0.001001 6.39 4399.75 920.91 0.28 Reach -1 40650 5645.00 440.00 463.21 463.58 0.000885 4.96 1214.90 125.84 0.24 Reach -1 40650 16681.00 440.00 468.81 469.32 0.001134 6.91 4162.02 849.52 0.28 Reach -1 48000 2994.00 445.60 466.97 467.05 0.000218 2.45 1773.10 549.52 0.12 Reach -1 48000 10837.00 445.60 472.02 472.08 0.000189 2.83 8305.52 1592.84 0.12 Reach -1 51350 3166.00 446.50 467.55 467.62 0.000136 2.08 1523.46 110.31 0.10 Reach -1 51350 11721.00 446.50 472.97 473.05 0.000420 2.64 6510.05 1837.83 0.16 Reach -1 53350 3166.00 448.00 467.81 467.86 0.000113 1.96 1836.37 210.20 0.09 Reach -1 53350 11721.00 448.00 473.51 473.63 0.000235 3.56 7929.91 3269.24 0.14 Reach -1 55590 2700.00 452.40 468.17 468.33 0.000494 3.20 842.68 81.87 0.18 Reach -1 55590 12101.00 452.40 474.27 474.62 0.000952 5.76 4645.43 1630.46 0.26 Reach -1 56940 2700.00 449.00 468.73 468.86 0.000317 2.95 981.00 98.99 0.15 Reach -1 56940 12101.00 449.00 475.41 475.72 0.000745 5.54 5112.30 2175.35 0.23 Profile Output Table - Standard Table 2 Reach River Sta E.G. Elev W.S. Elev Vel Head Frctn Loss C & E Loss Q Left Q Channel Q Right Top Width (ft) (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) Reach -1 18440 450.27 450.22 0.05 5216.74 1852.00 363.25 2438.44 Reach -1 18440 452.52 452.43 0.08 17158.71 2812.99 3111.30 3176.06 Reach -1 19330 450.31 450.30 0.01 0.03 0.00 2217.96 5148.11 65.93 2783.74 Reach -1 19330 452.61 452.57 0.04 0.09 0.00 9560.82 12350.68 1171.51 3448.66 Reach -1 19930 450.33 450.30 0.02 0.01 0.00 240.60 7159.35 32.05 1308.83 Reach -1 19930 452.69 452.57 0.13 0.06 0.03 2029.29 20308.52 745.20 1769.20 Reach -1 21560 450.39 450.34 0.05 0.06 0.01 7432.00 309.14 Reach -1 21560 453.04 452.73 0.31 0.29 0.05 22988.10 94.90 770.84 Reach -1 22370 450.44 450.38 0.06 0.05 0.00 7432.00 301.87 Reach -1 22370 453.33 452.95 0.38 0.27 0.02 23026.78 56.22 665.10 Reach -1 23800 450.56 450.47 0.09 0.11 0.01 6114.91 1316.77 0.33 362.09 Reach -1 23800 453.90 453.46 0.44 0.56 0.02 18780.81 4154.78 147.41 932.30 Reach -1 24400 450.59 450.57 0.03 0.03 0.01 7870.00 607.59 Reach -1 24400 454.05 453.94 0.11 0.11 0.03 22468.00 1060.99 Reach -1 24700 450.65 450.55 0.09 0.04 0.02 6105.03 1764.97 340.68 Reach -1 24700 454.24 453.90 0.34 0.12 0.07 16650.83 5817.17 560.57 Reach -1 25530 450.81 450.64 0.17 0.14 0.02 7870.00 213.87 Reach -1 25530 454.85 454.05 0.80 0.47 0.14 22468.00 239.66 Reach -1 25770 450.86 450.75 0.11 0.05 0.01 7870.00 249.21 Reach -1 25770 455.05 454.53 0.52 0.17 0.03 22468.00 276.81 Reach -1 26830 451.13 450.94 0.19 0.24 0.02 7870.00 245.83 Reach -1 26830 455.71 455.36 0.34 0.64 0.02 18379.93 4088.07 1228.21 Reach -1 26880 451.15 451.01 0.14 0.02 0.00 7870.00 276.59 Reach -1 26880 455.81 455.42 0.39 0.09 0.01 20929.79 1538.21 1352.94 Reach -1 27165 451.27 451.13 0.14 0.12 0.00 5305.31 2564.69 1189.70 Reach -1 27165 455.99 455.91 0.09 0.15 0.03 7081.60 15386.40 1439.14 Reach -1 27449 451.42 451.25 0.17 0.14 0.01 7285.05 584.95 1194.68 Reach -1 27449 456.09 456.00 0.09 0.10 0.00 9687.75 12780.25 1617.91 Reach - 27748 451.57 451.40 0.17 0.15 0.00 7332.25 537.75 1290.66 Reach -1 27748 456.21 456.11 0.10 0.11 0.00 10005.46 12462.54 1474.77 Existing Condition HEC -RAS Model - Page 62 Reach -1 27992 451.66 451.60 0.06 0.08 0.01 5678.28 2191.72 1229.11 Reach -1 27992 456.29 456.23 0.07 0.09 0.00 9336.22 13131.78 1366.89 Reach -i 28168 451.70 451.67 0.03 0.03 0.00 3718.45 4151.55 1180.01 Reach -1 28168 456.34 456.28 0.06 0.04 0.00 6410.73 16057.27 1346.71 Reach -1 28492 451.74 451.71 0.03 0.04 0.00 3584.54 4285.46 1091.33 Reach -1 28492 456.39 456.32 0.06 0.05 0.00 6274.33 16193.67 1251.92 Reach -1 28720 451.79 451.74 0.04 0.04 0.00 3977.38 3892.62 986.79 Reach -1 28720 456.45 456.37 0.08 0.06 0.00 7439.07 15028.93 1120.15 Reach -1 28890 451.85 451.75 0.10 0.05 0.02 5567.35 2302.65 1001.87 Reach -1 28890 456.51 456.40 0.11 0.05 0.01 8954.43 13513.57 1097.63 Reach -1 29124 451.98 451.82 0.16 0.11 0.02 7361.54 508.46 862.54 Reach -1 29124 456.66 456.50 0.16 0.14 0.02 13175.00 9293.00 1022.20 Reach -1 29651 452.19 452.10 0.09 0.21 0.01 5942.26 1927.74 778.96 Reach -1 29651 456.91 456.78 0.13 0.25 0.00 11803.31 10664.69 1105.04 Reach -1 29831 452.26 452.17 0.09 0.06 0.00 5554.67 2315.33 683.43 Reach -1 29831 457.00 456.85 0.15 0.09 0.00 11276.91 11191.09 964.47 Reach -1 30027 452.38 452.20 0.17 0.10 0.03 6770.74 1099.26 462.01 Reach -1 30027 457.21 456.91 0.30 0.16 0.04 14862.85 7605.15 677.66 Reach -1 30384 452.69 452.45 0.25 0.30 0.02 6808.78 1061.22 292.39 Reach -1 30384 457.88 457.32 0.56 0.60 0.08 18043.42 4424.58 456.35 Reach -1 30604 453.00 452.68 0.31 0.28 0.02 7266.55 603.45 341.59 Reach -1 30604 458.38 457.95 0.43 0.48 0.01 17206.48 5261.52 880.60 Reach -1 30958 453.32 453.22 0.10 0.30 0.02 2966.40 4903.60 807.44 Reach -1 30958 458.66 458.56 0.11 0.25 0.03 4060.00 18408.00 1200.90 Reach -1 31335 453.95 453.22 0.73 0.44 0.19 6293.55 1576.45 550.11 Reach -1 31335 458.92 458.70 0.22 0.22 0.03 7197.60 15270.40 1071.90 Reach -1 32150 454.29 453.82 0.47 0.20 0.13 7848.86 21.14 139.44 Reach -1 32150 460.28 458.45 1.83 0.24 1.13 21634.89 833.11 610.67 Reach -1 32200 454.55 453.77 0.78 0.04 0.22 7515.48 354.52 126.17 Reach -1 32200 460.80 458.39 2.41 0.11 0.41 19856.61 2611.40 172.81 Reach -1 32215 Bridge Reach -1 32230 454.60 453.83 0.77 0.00 0.00 7507.28 362.72 126.83 Reach -1 32230 461.01 458.76 2.25 0.00 0.00 19761.04 2706.96 176.55 Reach -1 32305 455.55 453.60 1.96 0.12 0.83 7664.98 205.02 138.53 Reach -1 32305 461.94 458.72 3.21 0.25 0.67 19221.18 3246.82 291.16 Reach -1 32725 457.05 456.78 0.27 0.99 0.51 1882.80 5803.38 183.82 546.37 Reach -1 32725 463.51 463.38 0.14 0.66 0.92 8612.71 9228.96 4626.32 1409.71 Reach -1 33145 457.46 457.36 0.09 0.36 0.05 5645.00 347.21 Reach -1 33145 463.77 463.63 0.14 0.25 0.00 376.01 15426.91 878.08 941.43 Reach -1 33470 457.69 457.53 0.16 0.19 0.03 5645.00 243.52 Reach -1 33470 463.98 463.83 0.15 0.21 0.00 951.04 13516.64 2213.32 1066.47 Reach -1 34260 458.08 458.01 0.07 0.37 0.03 5645.00 397.12 Reach -1 34260 464.35 464.22 0.13 0.36 0.01 12.85 16395.03 273.11 803.93 Reach -1 34850 458.63 458.25 0.38 0.40 0.15 5645.00 117.92 Reach -1 34850 464.95 464.49 0.47 0.43 0.17 3803.04 12877.96 864.79 Reach -1 34950 458.76 458.39 0.37 0.12 0.00 5645.00 118.62 Reach -1 34950 465.16 464.99 0.16 0.11 0.09 7597.64 9083.36 1899.26 Reach -1 36970 461.27 460.93 0.34 2.51 0.00 5231.18 413.82 344.48 Reach -1 36970 466.91 466.66 0.25 1.73 0.03 162.35 9511.01 7007.65 1500.67 Reach -1 38200 461.94 461.86 0.08 0.64 0.03 25.46 3555.07 2064.47 666.30 Reach -1 38200 467.45 467.38 0.08 0.53 0.02 2904.88 6379.07 7397.06 1263.49 Reach -1 39290 462.30 462.20 0.10 0.35 0.01 40.64 4203.15 1401.21 703.23 Reach -1 39290 467.76 467.66 0.10 0.30 0.01 1782.47 7487.26 7411.27 1058.63 Reach -1 39440 462.46 462.11 0.35 0.09 0.08 5645.00 Reach -1 39440 467.99 467.43 0.56 0.09 0.14 1752.48 12221.49 2707.03 104.50 900.84 Reach -1 39490 462.51 462.37 0.14 0.03 0.02 0.01 5644.99 207.19 Reach -1 39490 468.06 467.78 0.29 0.05 0.03 2202.73 14367.14 111.13 569.46 Reach -1 39540 462.60 462.26 0.34 0.03 0.06 5645.00 Reach -1 39540 468.16 467.70 0.46 0.04 0.05 1811.64 11479.59 3389.77 105.18 920.91 Reach -1 40650 463.58 463.21 0.37 0.97 0.01 5400.76 244.24 125.84 Existing Condition HEC -RAS Model - Page 63 Reach -1 40650 469.32 468.81 0.51 1.15 0.02 2149.93 10779.01 3752.07 849.52 Reach -1 48000 467.05 466.97 0.08 3.44 0.03 534.25 2408.06 51.69 549.52 Reach -1 48000 472.08 472.02 0.05 2.71 0.05 4137.06 3857.17 2842.77 1592.84 Reach -1 51350 467.62 467.55 0.07 0.57 0.00 3166.00 110.31 Reach -1 51350 473.05 472.97 0.08 0.96 0.01 4218.85 7489.45 12.70 1837.83 Reach -1 53350 467.86 467.81 0.05 0.24 0.00 448.86 2716.90 0.24 210.20 Reach -1 53350 473.63 473.51 0.12 0.58 0.01 4580.73 6956.57 183.71 3269.24 Reach -1 55590 468.33 468.17 0.16 0.44 0.03 2700.00 81.87 Reach -1 55590 474.62 474.27 0.35 0.91 0.07 4024.03 7958.92 118.05 1630.46 Reach -1 56940 468.86 468.73 0.13 0.53 0.00 108.35 2591.65 98.99 Reach -1 56940 475.72 475.41 0.31 1.10 0.00 4313.25 7670.04 117.71 2175.35 Existing Condition HEC -RAS Model - Page 64 Appendix E Revised Existing Conditions HEC -RAS Model HEC -RAS Version 2.1 October 1997 U.S. Army Corp of Engineers Hydrologic Engineering Center 609 Second Street, Suite D Davis, California 95616 -4687 (916) 756 -1104 X X XXXXXX XXXX XXXX XX XXXX X X X X X X X X X X X X X X X X X X X XXXXXXX XXXX X XXX XXXX XXXXXX XXXX X X X X X X X X X X X X X X X X X X X X X XXXXXX XXXX X X X X XXXXX Output of the HEC -RAS Model Plan 02 = Revised Existing Conditions PROJECT DATA Project Title: ASPE - FP Development Permit Project File : abpe.prj Run Date and Time: 1/23/99 1:05:35 PM Project in English units Project Description: Andrew Brown Jr. Community Park (East), City of Coppell, Texas. Coppell Aquatic and Recreation Center Project - Hydraulics and Permitting by Halff Associates, Inc. Floodplain Development Permit Application - Denton Creek Fully Developed Landuse Hydraulics I Discharges: Fully Developed Landuse, 2, 10, 25, 100 -year floods. Plans: Plan 01 - Existing conditions - Conversion to hec -ras 2.1 of base model DENCR- DW.dat. (G01) Plan 02 = Revised existing conditions - Per 1998 City of Coppell aerial topography. (G02) Plan 03 = Proposed conditions per Architects - Rec center only, no mitigation. (G03) Plan 04 = Proposed conditions per Halff - Rec center and mitigation (lake enlargement). (G04) Avo 16521 - 01/99 - SBH PLAN DATA Plan Title: Revised Existing Condition Model Plan File : d: \avo \16521 \hec- 2 \fd \abpe.p02 Geometry Title: 1998 Revised Existing Conditions Geometry File d: \avo \16521 \hec- 2 \fd \abpe.g02 Flow Title Imported Flow 01 - Dencr- dw.dat Flow File d: \avo \16521 \hec- 2 \fd \abpe.f01 Plan Summary Information: Number of: Cross Sections = 50 Mulitple Openings = Culverts = 0 Inline Weirs = Bridges = 1 Computational Information Water surface calculation tolerance = 0.01 Critical depth calculaton tolerance = 0.01 Maximum number of interations = 20 Maximum difference tolerance = 0.3 Flow tolerance factor = 0.001 Computational Flow Regime: Subcritical Flow 0 0 Revised Existing Condition HEC -RAS Model - Page I FLOW DATA Flow Title: Imported Flow 01 - Dencr- dw.dat Flow File : d: \avo \16521 \hec- 2 \fd \abpe.f01 Flow Data (cfs) River Reach RS 2 -year ultimate10 -year ultimate25 -year ultimate100 -year ultimat RIVER -1 Reach -1 56940 2700 6584 9918 12101 RIVER -1 Reach -1 53350 3166 5796 9885 11721 RIVER -1 Reach -1 48000 2994 5761 9182 10837 RIVER -1 Reach -1 40650 5645 10168 14753 16681 RIVER -1 Reach -1 32725 7870 13730 19957 22468 RIVER -1 Reach -1 23800 7432 12847 20244 23083 Boundary Conditions River Reach Profile Upstream Downstream RIVER -1 Reach -1 2 -year ultimate Normal S = .00046 RIVER -1 Reach -1 10 -year ultimate Normal S = .00046 RIVER -1 Reach -1 25 -year ultimate Normal S = .00046 RIVER -1 Reach -1 100 -year ultimat Normal S = .00046 GEOMETRY DATA Geometry Title: 1998 Revised Existing Conditions Geometry File : d: \avo \16521 \hec- 2 \fd \abpe.g02 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 56940 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 33 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1070 499.4 1720 494.5 1850 490.8 2090 477.8 2330 474.5 2480 474.6 2820 472.4 2980 475.6 3120 473.6 3300 472 3640 475 3760 475 3850 473.4 3880 469 3920 469 3930 474 3980 475.8 4120 475.3 4290 472 4335 462 4340 454.5 4345 451 4355 449.2 4360 449 4370 452 4400 467 4415 474 4440 473 4445 473.8 4630 476 4760 500 4800 502 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1850 .052 4120 .055 4335 .045 4415 .058 4630 .06 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4335 4415 1250 1350 1250 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate Revised Existing Condition HEC -RAS Model - Page 2 W.S. Elev (ft) 468.73 Element Left OB Channel Vel Head (ft) 0.13 Wt. n -Val. 0.055 0.045 E.G. Elev (ft) 468.86 Reach Len. (ft) 1250.00 1350.00 Crit W.S. (ft) Elev Flow Area (sq ft) 101.89 879.12 E.G. Slope (ft /ft) 0.000317 Area (sq ft) 101.89 879.12 Q Total (cfs) 2700.00 Flow (cfs) 108.35 2591.65 Top Width (ft) 98.99 Top Width (ft) 30.28 68.71 Vel Total (ft /s) 2.75 Avg. Vel. (ft /s) 1.06 2.95 Max Chl Dpth (ft) 19.73 Hydr. Depth (ft) 3.36 12.80 Conv. Total (cfs) 151569.6 Conv. (cfs) 6082.7 145486.9 Length Wtd. (ft) 1347.99 Wetted Per. (ft) 31.02 78.35 Min Ch E1 (ft) 449.00 Shear (lb /sq ft) 0.07 0.22 Alpha 1.11 Stream Power (lb /ft s) 0.07 0.66 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 296.90 1498.61 C & E Loss (ft) 0.00 Cum SA (acres) 96.48 138.57 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #10 475.41 0.31 475.72 0.000745 12101.00 2175.35 2.37 26.41 443201.7 1314.58 449.00 3.57 1.10 0.00 D -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB 0.053 1250.00 3561.04 3561.04 4313.25 1929.73 1.21 1.85 157973.9 1932.48 0.09 0.10 1744.72 558.55 Channel 0.045 1350.00 1384.02 1384.02 7670.04 80.00 5.54 17.30 280916.9 90.82 0.71 3.93 2245.37 191.52 Right OB 1250.00 265.38 129.54 Right OB 0.058 1250.00 167.24 167.24 117.71 165.62 0.70 1.01 4311.0 165.71 0.05 0.03 1364.09 338.60 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 55590 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 23 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 501.5 1100 493 1300 487 1500 484 1550 486 1900 489 2000 480 2500 475 2600 475 3000 471 3600 472 3900 472 4000 473 4240 476 4250 470 4300 452.4 4325 452.4 4340 472 4390 474 4410 472.5 4440 473 4480 483 4540 502 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .04 1300 .055 1900 .06 4250 .045 4340 .06 4480 .055 Revised Existing Condition HEC -RAS Model - Page 3 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. Profile #100 -year ultimat 4250 4340 2000 2240 2200 .1 .3 Element CROSS SECTION OUTPUT Profile #2 -year ultimate Vel Head (ft) 0.35 Wt. n -Val. W.S. Elev (ft) 468.17 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. Crit W.S. (ft) 0.045 Flow Area (sq ft) E.G. Elev (ft) 468.33 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 1381.13 Flow Area (sq ft) Q Total (cfs) 842.69 Flow (cfs) E.G. Slope (ft /ft) 0.000494 Area (sq ft) Top Width (ft) 842.69 Top Width (ft) Q Total (cfs) 2700.00 Flow (cfs) Vel Total (ft /s) 2700.00 Avg. Vel. (ft /s) Top Width (ft) 81.87 Top Width (ft) Max Chl Dpth (ft) 81.87 Hydr. Depth (ft) Vel Total (ft /s) 3.20 Avg. Vel. (ft /s) Conv. Total (cfs) 3.20 Conv. (cfs) Max Chl Dpth (ft) 15.77 Hydr. Depth (ft) Length Wtd. (ft) 10.29 Wetted Per. (ft) Conv. Total (cfs) 121503.2 Conv. (cfs) Min Ch E1 (ft) 121503.2 Shear (lb /sq ft) Length Wtd. (ft) 2221.63 Wetted Per. (ft) Alpha 92.35 Stream Power (lb /ft s) Min Ch E1 (ft) 452.40 Shear (lb /sq ft) Frctn Loss (ft) 0.28 Cum Volume (acre -ft) Alpha 1.00 Stream Power (lb /ft s) 0.90 Cum SA (acres) Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 295.44 1471.93 265.38 C & E Loss (ft) 0.03 Cum SA (acres) 96.04 136.24 129.54 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 474.27 Element Left OB Channel Right OB Vel Head (ft) 0.35 Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 474.62 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 2500 Flow Area (sq ft) 3131.71 1381.13 132.53 E.G. Slope (ft /ft) 0.000952 Area (sq ft) 3131.71 1381.13 132.53 Q Total (cfs) 12101.00 Flow (cfs) 4023.98 7958.97 118.04 Top Width (ft) 1630.46 Top Width (ft) 1435.38 90.00 105.07 Vel Total (ft /s) 2.60 Avg. Vel. (ft /s) 1.28 5.76 0.89 Max Chl Dpth (ft) 21.87 Hydr. Depth (ft) 2.18 15.35 1.26 Conv. Total (cfs) 392156.5 Conv. (cfs) 130405.0 257926.1 3825.4 Length Wtd. (ft) 2152.79 Wetted Per. (ft) 1436.59 102.69 105.33 Min Ch E1 (ft) 452.40 Shear (lb /sq ft) 0.13 0.80 0.07 Alpha 3.30 Stream Power (lb /ft s) 0.17 4.61 0.07 Frctn Loss (ft) 0.91 Cum Volume (acre -ft) 1648.70 2202.52 1359.79 C & E Loss (ft) 0.07 Cum SA (acres) 510.27 188.88 334.71 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 53350 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 34 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 510 1200 498 1300 492 1850 479 1900 476 2100 474 2500 472.5 2750 474 3400 472 3450 467 3510 469 3700 472.5 3740 472.5 4000 470 4700 472 5170 475 5300 470 5360 473 5470 472 5570 456 Revised Existing Condition HEGRAS Model - Page 4 5580 450 5590 448 5600 450 5650 460 5670 467 5700 473 6100 478 6120 481.4 6170 490 Manning's n Values 0.05 num= 6 467.86 Sta n Val Sta n Val Sta n Val 1000 .05 1300 .055 3400 .05 6120 .055 Channel Right OB Bank Sta: Left Right Lengths: Left Channel Right 5570 5670 2000.00 1650 2000 1750 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 467.81 Element Vel Head (ft) 0.05 Wt. n -Val. E.G. Elev (ft) 467.86 Reach Len. (ft) Crit W.S. (ft) 1.96 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000113 Area (sq ft) Q Total (cfs) 3166.00 Flow (cfs) Top Width (ft) 210.20 Top Width (ft) Vel Total (ft /s) 1.72 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.81 Hydr. Depth (ft) Conv. Total (cfs) 297399.8 Conv. (cfs) Length Wtd. (ft) 1975.18 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 1.16 Stream Power (lb /ft s) Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.00 Cum SA (acres) 5620 450 5900 472 6230 510 5630 451 6000 473 Sta n Val Sta n Val 5570 .045 5670 .058 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 448.86 1385.88 1.64 448.86 1385.88 1.64 448.86 2716.90 0.24 106.16 100.00 4.04 1.00 1.96 0.15 4.23 13.86 0.40 42164.0 255213.2 22.6 107.15 105.23 4.12 0.03 0.09 0.00 0.03 0.18 0.00 285.13 1414.63 265.34 93.61 131.56 129.44 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 473.51 Element Vel Head (ft) 0.12 Wt. n -Val. E.G. Elev (ft) 473.63 Reach Len. (ft) Crit W.S. (ft) 1956.28 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000235 Area (sq ft) Q Total (cfs) 11721.00 Flow (cfs) Top Width (ft) 3269.18 Top Width (ft) Vel Total (ft /s) 1.48 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.51 Hydr. Depth (ft) Conv. Total (cfs) 763792.8 Conv. (cfs) Length Wtd. (ft) 1866.59 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 3.56 Stream Power (lb /ft s) Frctn Loss (ft) 0.58 Cum Volume (acre -ft) C & E Loss (ft) 0.01 Cum SA (acres) Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 5561.56 1956.28 411.87 5561.56 1956.28 411.87 4580.64 6956.66 183.69 2828.92 100.00 340.26 0.82 3.56 0.45 1.97 19.56 1.21 298495.0 453327.3 11970.4 2830.68 105.23 340.87 0.03 0.27 0.02 0.02 0.97 0.01 1449.13 2116.71 1346.04 412.38 184.00 323.47 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 51350 INPUT Description: FEMA CROSS SECTION Revised Existing Condition HEC -RAS Model - Page 5 Station Elevation Data num= 30 0.045 Sta Elev Sta Elev Sta Elev 1000 509 1100 504 1400 492.6 2030 479 2230 474.5 2470 472.8 3140 471.3 3400 469.6 3600 468.7 4000 470.5 4100 470.5 4160 470.3 4280 470.3 4315 471 4415 469.4 4615 482 4675 484 5215 498 Manning's n Values Cum Volume (acre -ft) num= 6 Cum SA (acres) Sta n Val Sta n Val Sta n Val 1000 .05 1400 .05 2930 .055 4585 .06 Sta Elev 1600 490.5 2690 472.5 3800 468.5 4200 446.5 4515 470.2 5330 500 Sta Elev 1850 487 2930 474 3870 468.5 4238 447.5 4585 483.8 5420 505.5 Sta n Val Sta n Val 4160 .045 4515 .058 Bank Sta: Left Right Lengths: Left Channel Right 4160 4515 0.045 3600 3350 3700 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 467.55 Element Vel Head (ft) 0.07 Wt. n -Val. E.G. Elev (ft) 467.62 Reach Len. (ft) Crit W.S. (ft) 1468.55 Flow Area (sq ft) E.G. Slope (ft /*ft) 0.000136 Area (sq ft) Q Total (cfs) 3166.00 Flow (cfs) Top Width (ft) 110.31 Top Width (ft) Vel Total (ft /s) 2.08 Avg. Vel. (ft /s) Max Chl Dpth (ft) 21.05 Hydr. Depth (ft) Conv. Total (cfs) 271953.4 Conv. (cfs) Length Wtd. (ft) 3374.62 Wetted Per. (ft) Min Ch El (ft) 446.50 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.57 Cum Volume (acre -ft) C & E Loss (ft) 0.00 Cum SA (acres) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile 410 472.97 0.08 473.05 0.000420 11721.00 1837.80 1.80 26.47 572206.8 3486.84 446.50 1.52 0.96 0.01 ) -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 48000 INPUT Description: FEMA CROSS SECTION Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 3600.00 3350.00 3700.00 1523.47 1523.47 3166.00 110.31 2.08 13.81 271953.4 121.20 0.11 0.22 276.63 1347.84 265.31 91.59 126.73 129.35 Left OB Channel Right OB 0.055 0.045 0.058 3600.00 3350.00 3700.00 3654.86 2835.29 19.73 3654.86 2835.29 19.73 4218.77 7489.52 12.70 1468.55 355.00 14.25 1.15 2.64 0.64 2.49 7.99 1.38 205956.1 365630.6 620.0 1468.58 367.37 14.52 0.07 0.20 0.04 0.08 0.53 0.02 1274.57 2006.71 1337.37 330.98 173.55 316.35 Revised Existing Condition HEC -RAS Model - Page 6 Station Elevation Data Sta Elev Sta 1300 503 1450 1710 465.6 1740 2355 459 2370 2405 448.5 2410 2830 465.5 3060 3380 487.8 3570 5020 498.4 5200 Manning's n Values Sta n Val Sta 1300 .06 1540 3350 .06 Bank Sta: Left Right 2370 2445 CROSS SECTION OUTPUT W.S. Elev (ft)- Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 32 Right OB 0.055 0.045 0.060 5700.00 Elev Sta Elev Sta Elev Sta Elev 490 1490 482.2 1540 482.5 1590 474 464.8 1880 464.5 1890 467.2 2330 469 457 2375 445.6 2385 446 2395 446.8 454 2430 462.3 2445 466.5 2500 471 467.8 3170 467.8 3240 475 3350 474.5 489 3980 491 4330 491 4740 488.5 501.5 1592.83 Top Width (ft) 751.77 75.00 766.07 Vel Total (ft /s) num= 6 1.11 2.83 0.88 Max Chl Dpth (ft) 26.42 n Val Sta n Val Sta n Val Sta n Val .055 2330 .055 2370 .045 2445 .06 Lengths: Left Channel Right 5700 7350 2900 Profile #2 -year ultimate 466.97 Element 0.08 Wt. n -Val. 467.05 Reach Len. (ft) Flow Area (sq ft) 0.000218 Area (sq ft) 2994.00 Flow (cfs) 549.55 Top Width (ft) 1.69 Avg. Vel. (ft /s) 21.37 Hydr. Depth (ft) 202575.7 Conv. (cfs) 7095.49 Wetted Per. (ft) 445.60 Shear (lb /sq ft) 1.74 Stream Power (lb /ft s) 3.44 Cum Volume (acre -ft) 0.03 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.055 0.045 0.060 5700.00 7350.00 2900.00 616.51 982.48 174.17 616.51 982.48 174.17 534.27 2408.03 51.70 233.64 75.00 240.91 0.87 2.45 0.30 2.64 13.10 0.72 36149.1 162928.6 3498.0 235.69 87.30 240.95 0.04 0.15 0.01 0.03 0.38 0.00 251.16 1251.47 257.91 81.94 119.61 119.12 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 472.02 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 472.08 Reach Len. (ft) 5700.00 7350.00 2900.00 Crit W.S. (ft) Flow Area (sq ft) 3730.98 1361.54 3212.76 E.G. Slope (ft /ft) 0.000189 Area (sq ft) 3730.98 1361.54 3212.76 Q Total (cfs) 10837.00 Flow (cfs) 4137.02 3857.27 2842.71 Top Width (ft) 1592.83 Top Width (ft) 751.77 75.00 766.07 Vel Total (ft /s) 1.30 Avg. Vel. (ft /s) 1.11 2.83 0.88 Max Chl Dpth (ft) 26.42 Hydr. Depth (ft) 4.96 18.15 4.19 Conv. Total (cfs) 788497.7 Conv. (cfs) 301008.9 280653.8 206835.0 Length Wtd. (ft) 5906.65 Wetted Per. (ft) 754.42 87.30 766.52 Min Ch E1 (ft) 445.60 Shear (lb /sq ft) 0.06 0.18 0.05 Alpha 2.07 Stream Power (lb /ft s) 0.06 0.52 0.04 Frctn Loss (ft) 2.71 Cum Volume (acre -ft) 969.37 1845.33 1200.09 C & E Loss (ft) 0.05 Cum SA (acres) 239.24 157.02 283.21 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 40650 INPUT Description: Revised Existing Condition HEC -RAS Model - Page 7 FEMA CROSS SECTION Station Elevation Data Sta Elev St 1000 501 1200 2950 488.5 3240 4320 468.2 4500 4770 451.2 4780 4860 463 4870 5410 482.5 5550 6150 497.8 6200 Manning's n Values Sta n Val Sta 1000 .06 1200 5410 .04 Bank Sta: Left Right 4730 4815 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 3 32 Profile #10 468.81 0.51 469.32 0.001135 16681.00 849.48 4.01 28.81 495225.4 1078.09 440.00 2.05 1.15 0.02 ) -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB Channel Right OB 0.060 0.045 0.045 1400.00 1110.00 800.00 1256.27 1560.70 1343.94 1256.27 1560.70 1343.94 2149.06 10780.78 3751.16 427.74 85.00 336.74 1.71 6.91 2.79 2.94 18.36 3.99 63801.4 320059.7 111364.3 427.79 100.84 338.07 0.21 1.10 0.28 0.36 7.57 0.79 643.07 1598.79 1048.41 162.06 143.52 246.50 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. Revised Existing Condition HEC-RAS Model - Page 8 CROSS SECTION REACH: Reach -1 INPUT Description: FEMA CROSS SECTION RIVER: RIVER -1 RS: 39540 Station Elevation Data Sta Elev Sta 1000 502 1050 1800 484 2000 3450 477 . 3610 4000 464 4025 4150 462.5 4210 4880 481.5 4970 5600 485 5730 Manning's n Values Sta n Val Sta 1000 .05 1050 4710 .055 Bank Sta: Left Right 4040 4150 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 34 Right OB 0.045 50.00 Elev Sta Elev Sta Elev Sta Elev 491.6 1160 490 1330 487 1530 487 483 2100 480 2200 480 2480 477 477.3 3730 471.5 3790 465 3900 463 468 4040 464 4090 444 4110 442 468.5 4400 462.8 4600 464 4710 466.5 483 5080 484 5380 482 5460 482 488 5830 493.5 6040 500 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 2000 .055 4040 .045 4150 .05 Lengths: Left Channel Right 50 50 50 Profile #2 -year ultimate 462.26 Element 0.34 Wt. n -Val. 462.60 Reach Len. (ft) Flow Area (sq ft) 0.000871 Area (sq ft) 5645.00 Flow (cfs) 105.18 Top Width (ft) 4.70 Avg. Vel. (ft /s) 20.26 Hydr. Depth (ft) 191291.3 Conv. (cfs) 50.00 Wetted Per. (ft) 442.00 Shear (lb /sq ft) 1.00 Stream Power (lb /ft s) 0.03 Cum Volume (acre -ft) 0.06 Cum SA (acres) Profile #10 467.70 0.46 468.15 0.001002 16681.00 920.74 3.79 25.70 526851.5 50.00 442.00 2.04 0.04 0.05 D -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 50.00 50.00 50.00 1202.33 1202.33 5645.00 105.18 4.70 11.43 191291.3 113.68 0.57 2.70 210.82 1047.57 246.74 66.65 104.14 109.17 Left OB Channel Right OB 0.055 0.045 0.050 50.00 50.00 50.00 928.65 1796.82 1672.15 928.65 1796.82 1672.15 1810.69 11482.58 3387.73 271.89 110.00 538.84 1.95 6.39 2.03 3.42 16.33 3.10 57188.6 362665.1 106997.8 272.84 118.90 539.26 0.21 0.95 0.19 0.42 6.04 0.39 607.96 1556.02 1020.71 150.82 141.03 238.46 Revised Existing Condition HEC -RAS Model - Page 9 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39490 INPUT Description: FEMA CROSS SECTION Station Elevation Data Sta Elev Sta 1000 502 1090 3060 477.5 3175 3782 465 3885 3985 462.8 4030 4193 442 4217 4635 464 4670 5940 495 6120 Manning's n Values Sta n Val Sta 1000 .05 1090 4950 .055 Bank Sta: Left Right 4030 4310 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 33 Element Vel Head (ft) 0.29 Wt. n -Val. E.G. Elev (ft) Elev Sta Elev Sta Elev Sta Elev 491.5 2380 479 2480 478.5 2670 478 478.2 3320 477 3470 477 3760 478 462.7 3895 462.3 3914 463 3965 464 467.5 4045 463 4155 454.3 4183 442 443.5 4257 462.5 4310 468.5 4505 478.5 478.2 4950 478.5 5380 483.5 5520 483.5 499 6200 500 num= 6 n Val Sta n Val Sta n Val Sta n Val .05 2380 .055 3760 .045 4670 .05 Lengths: Left Channel Right 50 50 50 Profile #2 -year ultimate 462.37 Element 0.14 Wt. n -Val. 462.51 Reach Len. (ft) Flow Area (sq ft) 0.000465 Area (sq ft) 5645.00 Flow (cfs) 207.23 Top Width (ft) 3.04 Avg. Vel. (ft /s) 20.37 Hydr. Depth (ft) 261852.2 Conv. (cfs) 50.00 Wetted Per. (ft) 442.00 Shear (lb /sq ft) 1.00 Stream Power (lb /ft s) 0.03 Cum Volume (acre -ft) 0.02 Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.77 Element Vel Head (ft) 0.29 Wt. n -Val. E.G. Elev (ft) 468.06 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000753 Area (sq ft) Q Total (cfs) 16681.00 Flow (cfs) Top Width (ft) 569.41 Top Width (ft) Vel Total (ft /s) 3.94 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.77 Hydr. Depth (ft) Coeff Contr. Expan. .1 .3 Left OB 0.045 50.00 0.12 0.12 0.01 3.51 0.07 0.03 0.4 3.51 0.00 0.00 210.82 66.65 Channel 0.045 50.00 1858.71 1858.71 5644.99 203.72 3.04 9.12 261851.8 210.92 0.26 0.78 1045.81 103.96 Left OB 0.045 50.00 984.25 984.25 2201.53 252.69 2.24 3.90 Channel 0.045 50.00 3163.03 3163.03 14368.47 273.58 4.54 11.56 Right OB 50.00 246.74 109.17 Right OB 0.045 50.00 81.39 81.39 111.00 43.13 1.36 1.89 Revised Existing Condition HEC -RAS Model - Page 10 Conv. Total (cfs) 607863.7 Conv. (cfs) 80224.7 523594.2 4044.8 Length Wtd. (ft) 50.00 Wetted Per. (ft) 253.79 281.80 44.08 Min Ch E1 (ft) 1000 502 442.00 Shear (lb /sq ft) 0.18 0.53 0.09 Alpha 487 1.19 Stream Power (lb /ft s) 0.41 2.40 0.12 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 606.86 1553.17 1019.70 C & E Loss (ft) 0.03 Cum SA (acres) 150.52 140.81 238.12 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39440 INPUT Description: CROSS SECTION 39440 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. * * * * * * * * ** END OF KH- PARCHE COORDINATION MODEL * * * * * * * * * * * * * * * * ** Station Elevation Data num= 34 4040 4150 0.045 150 150 280 CROSS SECTION OUTPUT Profile #2 -year Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1050 491.6 1160 490 1330 487 1530 487 1800 484 2000 483 2100 480 2200 480 2480 477 3450 477 3610 477.3 3730 471.5 3790 465 3900 463 4000 464 4025 468 4040 464 4090 444 4110 442 4150 462.5 4210 468.5 4400 462.8 4600 464 4710 466.5 4880 481.5 4970 483 5080 484 5380 482 5460 482 5600 485 5730 488 5830 493.5 6040 500 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .06 1050 .06 2000 .055 4040 .045 4150 .06 4710 .055 Bank Sta: Left Right Lengths: Left Channel Right 4040 4150 0.045 150 150 280 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.11 Element Vel Head (ft) 0.35 Wt. n -Val. E.G. Elev (ft) 462.46 Reach Len. (ft) Crit W.S. (ft) 104.50 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000903 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 104.50 Top Width (ft) Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) Max Chl Dpth (ft) 20.11 Hydr. Depth (ft) Conv. Total (cfs) 187895.2 Conv. (cfs) Length Wtd. (ft) 166.14 Wetted Per. (ft) Min Ch E1 (ft) 442.00 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.09 Cum Volume (acre -ft) C & E Loss (ft) 0.08 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 150.00 150.00 280.00 1186.36 1186.36 5645.00 104.50 4.76 11.35 187895.2 112.94 0.59 2.82 210.82 1044.06 246.74 66.65 103.78 109.17 Revised Existing Condition HEC -RAS Model - Page I 1 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat 1200 466 1400 W.S. Elev (ft) 467.43 Element Left OB Channel Right OB Vel Head (ft) 0.56 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 467.99 Reach Len. (ft) 150.00 150.00 280.00 Crit W.S. (ft) Sta Flow Area (sq ft) 855.43 1766.91 1527.65 E.G. Slope (ft /ft) 0.001202 Area (sq ft) 855.43 1766.91 1527.65 Q Total (cfs) 16681.00 Flow (cfs) 1751.24 12224.92 2704.84 Top Width (ft) 900.64 Top Width (ft) 266.66 110.00 523.98 Vel Total (ft /s) 4.02 Avg. Vel. (ft /s) 2.05 6.92 1.77 Max Chl Dpth (ft) 25.43 Hydr. Depth (ft) 3.21 16.06 2.92 Conv. Total (cfs) 481206.7 Conv. (cfs) 50519.1 352659.4 78028.2 Length Wtd. (ft) 189.42 Wetted Per. (ft) 267.54 118.90 524.37 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.24 1.11 0.22 Alpha 2.23 Stream Power (lb /ft s) 0.49 7.71 0.39 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 605.81 1550.34 1018.78 C & E Loss (ft) 0.14 Cum SA (acres) 150.22 140.59 237.80 INPUT Description: Station Elevation Data Sta Elev St 1000 474 103 1275 464 132 1525 464 154 1580 441.88 160 1750 458 195 2180 466 219 Manning's n Values Sta n Val St 1000 .05 1275 Bank Sta: Left Right 1525 1675 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 30 Sta Elev Sta Elev 0 472 1070 470 0 462 1345 460.3 0 462 1550 460 0 445 1615 450 0 458 2000 460 0 468 2200 470 num= 5 Sta n Val Sta n Val .055 1540 .045 Lengths: Left Channel 980 1090 Profile #2 -year ultimate 462.20 Element 0.10 Wt. n -Val. 462.30 Reach Len. Flow Area 0.000340 Area (sq f 5645.00 Flow (cfs) 703.27 Top Width 1.92 Avg. Vel. 20.32 Hydr. Dept 306005.4 Conv. (cfs 1095.50 Wetted Per 441.88 Shear (lb/ 1.72 Stream Pow 0.35 Cum Volume 0.01 Cum SA (ac Sta Elev Sta Elev 1115 468 1200 466 1400 462 1450 464 1560 450 1565 445 1675 460 1710 460 2150 462 2175 464 2240 472 2310 474 Sta n Val Sta n Val 1675 .055 2175 .05 Right Coeff Contr. Expan. 1110 242.29 .1 .3 (ft) (sq ft) t) (ft) (ft /s) h (ft) . (ft) sq ft) er (lb /ft s) (acre -ft) res) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.65 Element Left OB Channel Right OB 0.055 0.045 0.055 980.00 1090.00 1110.00 84.65 1466.29 1383.62 84.65 1466.29 1383.62 40.67 4202.90 1401.44 89.34 136.47 477.46 0.48 2.87 1.01 0.95 10.74 2.90 2204.5 227831.5 75969.4 89.43 145.10 477.57 0.02 0.21 0.06 0.01 0.62 0.06 210.67 1039.49 242.29 66.50 103.37 107.64 Left OB Channel Right OB Revised Existing Condition HEC -RAS Model - Page 12 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39290 Vel Head (ft) 0.10 Wt. n -Val. 0.054 0.045 0.055 E.G. Elev (ft) 467.75 Reach Len. (ft) 980.00 1090.00 1110.00 Crit W.S. (ft) Elev Flow Area (sq ft) 1493.26 2272.54 4111.56 E.G. Slope (ft /ft) 0.000272 Area (sq ft) 1493.26 2272.54 4111.56 Q Total (cfs) 16681.00 Flow (cfs) 1781.63 7488.56 7410.81 Top Width (ft) 1058.51 Top Width (ft) 395.25 150.00 513.26 Vel Total (ft /s) 2.12 Avg. Vel. (ft /s) 1.19 3.30 1.80 Max Chl Dpth (ft) 25.77 Hydr. Depth (ft) 3.78 15.15 8.01 Conv. Total (cfs) 1011831.4 Conv. (cfs) 108069.7 454238.7 449523.0 Length Wtd. (ft) 1083.43 Wetted Per. (ft) 395.46 158.75 514.00 Min Ch E1 (ft) 441.88 Shear (lb /sq ft) 0.06 0.24 0.14 Alpha 1.44 Stream Power (lb /ft s) 0.08 0.80 0.24 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 601.76 1543.38 1000.66 C & E Loss (ft) 0.01 Cum SA (acres) 149.08 140.14 234.46 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 38200 INPUT Description: Station Elevation Data num= 49 Left OB Channel Right OB Vel Head (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev Reach Len. (ft) 1000 473.2 • 1250 472 1360 470 1400 468 1450 468 2182.32 1540 468 1570 466 1600 464 1650 462 1760 461 Q Total (cfs) 1930 462 2050 464 2070 466 2100 467.4 2120 466 Top Width (ft) 2125 464 2135 462 2142 460 2160 450 2170 444 2185 441 2200 444 2215 450 2255 460 2270 462 2295 462 2340 462 2390 464 2440 464 2460 462 2480 460 2500 458 2515 456 2530 454 2535 452 2560 451 2580 452 2600 454 2620 456 2670 458 2720 460 2755 462 2780 464 2800 466 2820 468 2840 470 2860 472 2950 474 3070 474.4 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .0S 1540 .06 2100 .045 2270 .055 2755 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2100 2270 1150 1230 950 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 461.86 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 461.94 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 104.37 1369.66 1492.46 E.G. Slope (ft /ft) 0.000298 Area (sq ft) 104.37 1369.66 1492.46 Q Total (cfs) 5645.00 Flow (cfs) 25.50 3554.92 2064.58 Top Width (ft) 666.49 Top Width (ft) 241.75 133.50 291.24 Vel Total (ft /s) 1.90 Avg. Vel. (ft /s) 0.24 2.60 1.38 Max Chl Dpth (ft) 20.86 Hydr. Depth (ft) 0.43 10.26 5.12 Conv. Total (cfs) 326779.5 Conv. (cfs) 1476.3 205788.4 119514.8 Length Wtd. (ft) 1168.35 Wetted Per. (ft) 241.76 141.12 292.46 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.01 0.18 0.10 Alpha 1.36 Stream Power (lb /ft s) 0.00 0.47 0.13 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 208.55 1004.01 205.65 C & E Loss (ft) 0.03 Cum SA (acres) 62.77 99.99 97.84 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.37 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 467.45 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 2540.54 2182.32 4134.33 E.G. Slope (ft /ft) 0.000277 Area (sq ft) 2540.54 2182.32 4134.33 Q Total (cfs) 16681.00 Flow (cfs) 2903.81 6380.76 7396.42 Top Width (ft) 1263.33 Top Width (ft) 550.00 169.61 543.72 Revised Existing Condition HEC -RAS Model - Page 13 Vel Total (ft /s) 1.88 Avg. Vel. (ft /s) 1.14 2.92 1.79 Max Chl Dpth (ft) 26.37 Hydr. Depth (ft) 4.62 12.87 7.60 Conv. Total (cfs) 1002087.1 Conv. (cfs) 174442.5 383315.2 444329.4 Length Wtd. (ft) 1101.79 Wetted Per. (ft) 550.31 177.88 545.34 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.08 0.21 0.13 Alpha 1.39 Stream Power (lb /ft s) 0.09 0.62 0.23 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 556.39 1487.65 895.60 C & E Loss (ft) 0.02 Cum SA (acres) 138.45 136.15 221.00 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 36970 INPUT Description: * * * ** SECTION "D" * * * ** CROSS SECTION 36970 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. Station Elevation Data Sta Elev Sta 1000 483 1050 1810 473 2155 2900 465 2930 2970 442.7 2975 3140 466.5 3280 3670 463 3740 4070 473 Manning's n Values Sta n Val Sta 1000 .06 1200 3960 .05 Bank Sta: Left Right 2900 3060 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) num= 31 Elev Sta Elev Sta Elev Sta Elev 477.5 1200 475 1430 475 1510 473.8 474 2360 469 2560 466 2850 466 458 2930 453.5 2930 444 2937 440 450.6 2985 454 2990 456 3060 465 465 3400 462 3430 462 3570 464.5 459 3870 459 3960 461.5 3990 463.5 num= 6 n Val Sta n Val Sta n Val Sta n Val .05 2155 .06 2900 .045 3060 .06 Lengths: Left Channel Right 2020 2020 2020 Profile #2 -year ultimate 460.94 Element 0.34 Wt. n -Val. 461.28 Reach Len. (ft) Flow Area (sq ft) 0.001308 Area (sq ft) 5645.00 Flow (cfs) 344.53 Top Width (ft) 3.94 Avg. Vel. (ft /s) 20.94 Hydr. Depth (ft) 156083.1 Conv. (cfs) 2020.00 Wetted Per. (ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.060 2020.00 2020.00 2020.00 1079.55 351.89 1079.55 351.89 5230.89 414.11 110.97 233.56 4.85 1.18 9.73 1.51 144633.0 11450.1 132.09 233.65 Revised Existing Condition HEC -RAS Mode! - Page 14 Min Ch E1 (ft) 440.00 Shear (lb /sq ft) 0.67 0.12 Alpha 1.41 Stream Power (lb /ft s) 3.23 0.14 Frctn Loss (ft) 2.51 Cum Volume (acre -ft) 207.17 969.43 185.54 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 96.54 92.12 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 466.66 Element Left OB Channel Right OB Vel Head (ft) 0.2S Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 466.90 Reach Len. (ft) 2020.00 2020.00 2020.00 Crit W.S. (ft) Flow Area (sq ft) 262.75 1895.31 3620.43 E.G. Slope (ft /ft) 0.001016 Area (sq ft) 262.75 1895.31 3620.43 Q Total (cfs) 16681.00 Flow (cfs) 161.08 9516.35 7003.57 Top Width (ft) 1500.38 Top Width (ft) 383.80 160.00 956.58 Vel Total (ft /s) 2.89 Avg. Vel. (ft /s) 0.61 5.02 1.93 Max Chl Dpth (ft) 26.66 Hydr. Depth (ft) 0.68 11.85 3.78 Conv. Total (cfs) 523429.2 Conv. (cfs) 5054.4 298611.3 219763.5 Length Wtd. (ft) 2020.00 Wetted Per. (ft) 383.81 181.85 957.08 Min Ch El (ft) • 440.00 Shear (lb /sq ft) 0.04 0.66 0.24 Alpha 1.91 Stream Power (lb /ft s) 0.03 3.32 0.46 Frctn Loss (ft) 1.74 Cum Volume (acre -ft) 519.38 1430.08 811.03 C & E Loss (ft) 0.03 Cum SA (acres) 126.12 131.49 204.64 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34950 INPUT Description: CROSS SECTION 34950 FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL MODIFIED TO ELIMINATE FLOW AREAS IN COTTONWOOD BRANCH AT SOUTH END OF THE CROSS SECTION & INEFFECTIVE FLOW AT NORTH END. Station Elevation Data Sta Elev Sta 620 470 620 1000 463.48 1062 2038 462 2210 2341 455 2380 2410 440 2428 2520 465 2532 2610 470 Manning's n Values Sta n Val Sta 620 .05 1355 Bank Sta: Left Right 2310 2520 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) num= 31 Elev Sta Elev Sta Elev Sta 465 740 464 760 463 930 463 1190 462 1355 461 2005 463 2270 464 2310 464.3 2338 450 2388 445 2390 440 2394 445 2435 450 2442 455 2465 466 2550 467 2570 468 2590 num= 5 n Val Sta n Val Sta n Val Sta .055 2005 .06 2310 .045 2520 Lengths: Left Channel Right Coeff Contr. 110 100 90 .3 Profile #2 -year ultimate 458.39 Element Left OB 0.37 Wt. n -Val. 458.76 Reach Len. (ft) 110.00 Elev 463 461 460 439.3 460 469 n Val .055 Expan. .5 Channel Right OB 0.045 100.00 90.00 Revised Existing Condition HEC -RAS Model - Page 15 Crit W.S. (ft) Lengths: Left Channel Right Flow Area (sq ft) Expan. 1156.84 520 590 640 E.G. Slope (ft /ft) 0.001184 Area (sq ft) Elev 1156.84 Elev Q Total (cfs) 5645.00 Flow (cfs) 461 5645.00 462 Top Width (ft) 118.63 Top Width (ft) 460 118.63 455 Vel Total (ft /s) 4.88 Avg. Vel. (ft /s) 439.3 4.88 440 Max Chl Dpth (ft) 19.09 Hydr. Depth (ft) 460 9.75 465 Conv. Total (cfs) 164024.1 Conv. (cfs) 469 164024.1 470 Length Wtd. (ft) 100.00 Wetted Per. (ft) 474 130.02 475 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.66 Alpha 1.00 Stream Power (lb /ft s) n Val 3.21 n Val Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 207.17 917.58 177.38 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 91.22 86.70 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.98 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.054 0.045 E.G. Elev (ft) 465.14 Reach Len. (ft) 110.00 100.00 90.00 Crit W.S. (ft) Flow Area (sq ft) 4794.48 2202.47 E.G. Slope (ft /ft) 0.000739 Area (sq ft) 4794.48 2202.47 Q Total (cfs) 16681.00 Flow (cfs) 7573.05 9107.95 Top Width (ft) 1897.30 Top Width (ft) 1687.52 209.77 Vel Total (ft /s) 2.38 Avg. Vel. (ft /s) 1.58 4.14 Max Chl Dpth (ft) 25.68 Hydr. Depth (ft) 2.84 10.50 Conv. Total (cfs) 613520.9 Conv. (cfs) 278534.0 334986.9 Length Wtd. (ft) 103.41 Wetted Per. (ft) 1687.59 222.80 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.13 0.46 Alpha 1.84 Stream Power (lb /ft s) 0.21 1.89 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 402.12 1335.06 727.09 C & E Loss (ft) 0.09 Cum SA (acres) 78.10 122.92 182.46 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34850 INPUT Description: CROSS SECTION 34850. FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL. NOT MODIFIED Station Elevation Data num= Sta Elev Sta Elev 0 465 648 465 1210 463 1270 464 1380 450 1388 445 1428 445 1435 450 1532 466 1550 467 1630 471 1648 472 1740 476 1760 477.79 Manning's n Values num= Sta n Val Sta n Val 0 .05 648 .055 1671 .05 32 Lengths: Left Channel Right Coeff Contr. Expan. 1310 1520 520 590 640 Sta Elev Sta Elev Sta Elev 660 461 1005 461 1038 462 1310 464.3 1338 460 1341 455 1390 440 1394 439.3 1410 440 1442 455 1465 460 1520 465 1570 468 1590 469 1610 470 1671 473 1691 474 1710 475 6 Sta n Val Sta n Val Sta n Val 1005 .06 1310 .045 1520 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1310 1520 520 590 640 .3 .5 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 458.26 Element Left OB Channel Vel Head (ft) 0.38 Wt. n -Val. 0.045 E.G. Elev (ft) 458.64 Reach Len. (ft) 520.00 590.00 Right OB 640.00 Revised Existing Condition HEC -RAS Model - Page 16 Crit W.S. (ft) 464.47 Flow Area (sq ft) 1140.97 E.G. Slope (ft /ft) 0.001230 Area (sq ft) 1140.97 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 117.93 Top Width (ft) 117.93 Vel Total (ft /s) 4.95 Avg. Vel. (ft /s) 4.95 Max Chl Dpth (ft) 18.96 Hydr. Depth (ft) 9.67 Conv. Total (cfs) 160941.6 Conv. (cfs) 160941.6 Length Wtd. (ft) 590.00 Wetted Per. (ft) 129.23 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.68 Alpha 1.00 Stream Power (lb /ft s) 3.36 Frctn Loss (ft) 0.40 Cum Volume (acre -ft) 207.17 914.94 177.38 C & E Loss (ft) 0.15 Cum SA (acres) 59.58 90.95 86.70 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.47 Element Left OB Channel Right OB Vel Head (ft) 0.47 Wt. n -Val. 0.056 0.045 E.G. Elev (ft) 464.94 Reach Len. (ft) 520.00 590.00 640.00 Crit W.S. (ft) Flow Area (sq ft) 1720.04 2096.11 E.G. Slope (ft /ft) 0.001691 Area (sq ft) 1720.04 2096.11 Q Total (cfs) 16681.00 Flow (cfs) 3777.11 12903.89 Top Width (ft) 864.52 Top Width (ft) 660.40 204.12 Vel Total (ft /s) 4.37 Avg. Vel. (ft /s) 2.20 6.16 Max Chl Dpth (ft) 25.17 Hydr. Depth (ft) 2.60 10.27 Conv. Total (cfs) 405672.6 Conv. (cfs) 91857.2 313815.3 Length Wtd. (ft) 582.45 Wetted Per. (ft) 660.99 217.12 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.27 1.02 Alpha 1.59 Stream Power (lb /ft s) 0.60 6.27 Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 393.90 1330.13 727.09 C & E Loss (ft) 0.17 Cum SA (acres) 75.13 122.44 182.46 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34260 INPUT Description: CROSS SECTIO Station Elevation Data num= Sta Elev Sta Elev 0 470 0 465 1000 452 1037.5 451.5 1280 461 1291 460 1337 440 1340 439 1363 445 1372 450 1445 462 1472 463 1810.5 464.5 2230 465.5 Manning's n Values num= Sta n Val Sta n Val 0 .055 1201 .06 Bank Sta: Left Right Lengths: 868 1520 Blocked Obstructions num= Sta L Sta R Elev 1660 2230 32 Sta Elev 853 465 1075 452 1304 455 1345 438.8 1381 455 1520 464 4 Sta n Val 1280 .045 Left Channel 830 790 1 Sta 868 1166.4 1319 1350 1392 1620 Sta 1392 Right 250 Elev Sta Elev 461.2 900.8 453 453 1201 461.64 450 1328 445 439 1357 440 460 1415 461 461 1800 461 n Val .055 Coeff Contr. Expan .3 .5 Revised Existing Condition HEC -RAS Model - Page 17 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 458.01 Element Vel Head (ft) 0.07 Wt. n -Val. E.G. Elev (ft) 458.08 Reach Len. (ft) Crit W.S. (ft) 2572.23 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000427 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 397.15 Top Width (ft) Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.21 Hydr. Depth (ft) Conv. Total (cfs) 273248.5 Conv. (cfs) Length Wtd. (ft) 790.00 Wetted Per. (ft) Min Ch E1 (ft) 438.80 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.37 Cum Volume (acre -ft) C & E Loss (ft) 0.03 Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) . 464.20 Element Vel Head (ft) 0.13 Wt. n -Val. E.G. Elev (ft) 464.33 Reach Len. (ft) Crit W.S. (ft) 2572.23 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000421 Area (sq ft) Q Total (cfs) 16681.00 Flow (cfs) Top Width (ft) 803.85 Top Width (ft) Vel Total (ft /s) 2.76 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.40 Hydr. Depth (ft) Conv. Total (cfs) 813076.4 Conv. (cfs) Length Wtd. (ft) 751.18 Wetted Per. (ft) Min Ch E1 (ft) 438.80 Shear (lb /sq ft) Alpha 1.06 Stream Power (lb /ft s) Frctn Loss (ft) 0.37 Cum Volume (acre -ft) C & E Loss (ft) 0.01 Cum SA (acres) CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33470 INPUT Description: CROSS SECTION 33470 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. ELIMINATED GROUND POINTS AT SECTION 33470. SOUTH OF 2770. TO BETTER MODEL EXPANDING FLOW FROM UPSTREAM Left OB Channel Right OB 0.055 0.050 0.055 830.00 790.00 250.00 17.79 2572.23 298.30 17.79 2572.23 298.30 12.66 5645.00 269.62 11.85 397.15 140.00 0.71 2.19 0.90 1.50 6.48 2.13 617.1 273248.5 13142.1 12.22 407.66 143.25 0.04 0.17 0.05 0.03 0.37 0.05 207.17 889.80 177.38 59.58 87.46 86.70 Left OB Channel Right OB 0.055 0.051 0.055 830.00 790.00 250.00 17.79 5717.62 298.30 17.79 5717.62 298.30 12.66 16398.72 269.62 11.85 652.00 140.00 0.71 2.87 0.90 1.50 8.77 2.13 617.1 799317.2 13142.1 12.22 664.26 143.25 0.04 0.23 0.05 0.03 0.65 0.05 383.53 1277.21 724.90 71.12 116.65 181.43 Revised Existing Condition HEC -RAS Model - Page 18 REACH AT HIGH DISCHARGES. Station Elevation Data num= 38 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 0 470 0 465 958 465 959 465 960 465 976 459.72 1010 460 1135 460.2 1220 453 1310 462 1360 462 1382 461 1391 460 1419 455 1432 450 1432 445 1460 440 1465 439 1475 439.5 1485 439 1491 440 1510 445 1520 450 1534 455 1565 460 1580 461 1592 462 1603 463 1609 460 1880 460 1930 461 2040 461 2198 461 2375 461 2550 460.1 2561 463.8 • 2990 464.8 3160 465.2 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 0 .055 1310 .06 1360 .045 1603 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1135 1603 315 325 260 .3 .5 Blocked Obstructions num= 1 Sta L Sta R Elev 2030 3160 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 457.53 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.045 E.G. Elev (ft) 457.69 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 1767.79 E.G. Slope (ft /ft) 0.000523 Area (sq ft) 1767.79 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 243.61 Top Width (ft) 243.61 Vel Total (ft /s) 3.19 Avg. Vel. (ft /s) 3.19 Max Chl Dpth (ft) 18.53 Hydr. Depth (ft) 7.26 Conv. Total (cfs) 246919.2 Conv. (cfs) 246919.2 Length Wtd. (ft) 325.00 Wetted Per. (ft) 253.73 Min Ch E1 (ft) 439.00 Shear (lb /sq ft) 0.23 Alpha 1.00 Stream Power (lb /ft s) 0.73 Frctn Loss (ft) 0.19 Cum Volume (acre -ft) 207.17 850.44 177.38 C & E Loss (ft) 0.03 Cum SA (acres) 59.58 81.65 86.70 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.81 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 0.055 0.047 0.055 E.G. Elev (ft) 463.96 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 623.17 4043.98 1492.32 E.G. Slope (ft /ft) 0.000567 Area (sq ft) 623.17 4043.98 1492.32 Q Total (cfs) 16681.00 Flow (cfs) 945.77 13535.82 2199.41 Top Width (ft) 1066.39 Top Width (ft) 171.39 468.00 427.00 Vel Total (ft /s) 2.71 Avg. Vel. (ft /s) 1.52 3.35 1.47 Max Chl Dpth (ft) 24.81 Hydr. Depth (ft) 3.64 8.64 3.49 Conv. Total (cfs) 700356.0 Conv. (cfs) 39708.3 568304.9 92342.8 Length Wtd. (ft) 318.63 Wetted Per. (ft) 172.05 479.07 430.53 Min Ch E1 (ft) 439.00 Shear (lb /sq ft) 0.13 0.30 0.12 Alpha 1.30 Stream Power (lb /ft s) 0.19 1.00 0.18 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 377.42 1188.70 719.76 C & E Loss (ft) 0.00 Cum SA (acres) 69.37 106.49 179.80 Revised Existing Condition HEC -RAS Model - Page 19 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33145 INPUT Description: CROSS SECTION 33145 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. BEGIN SEPARA Elev Sta Elev 2315 Station Elevation Data num= 39 451.75 Sta Elev Sta Elev Sta Elev 825 470 825 465 2305.9 465 2390 460.64 2420.6 453 2485 452 2620 453 2660 463 2752 463 2795 460 2810 455 2825 450 2852 439 2862 438.4 2870 439 2898 450' 2903 455 2930 460 2960 463 2969 463 3005 462 3800 460 4300 460 4310.8 463.6 Manning's n Values 207.17 num= 5 Cum SA (acres) Sta n Val Sta n Val Sta n Val 825 .05 2305.9 .055 2420.6 .06 Bank Sta: Left Right Lengths: Left Channel 2390 2960 385 420 Blocked Obstructions num= 1 Sta Elev Sta Elev 2315 460.33 2350.1 460.55 2515 451.75 2545 452 2779 462 2789 461 2835 445 2849 440 2878 440 2889 445 2938 461 2951 462 3039 461 3750 461 4435 469 Area (sq ft) Top Width (ft) Sta n Val Sta 2752 .045 2960 Right Coeff Contr. 290 .3 Sta L Sta R Elev this cross - section. 3250 4435 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 457.37 Element Left OB Vel Head (ft) 0.09 Wt. n -Val. 0.15 E.G. Elev (ft) 457.46 Reach Len. (ft) 385.00 Crit W.S. (ft) Reach Len. (ft) Flow Area (sq ft) 420.00 E.G. Slope (ft /ft) 0.000687 Area (sq ft) 241.19 Q Total (cfs) 5645.00 Flow (cfs) Area (sq ft) Top Width (ft) 347.25 Top Width (ft) 16681.00 Vel Total (ft /s) 2.46 Avg. Vel. (ft /s) Top Width (ft) Max Chl Dpth (ft) 18.97 Hydr. Depth (ft) 570.00 Conv. Total (cfs) 215357.1 Conv. (cfs) 1.55 Length Wtd. (ft) 413.35 Wetted Per. (ft) Hydr. Depth (ft) Min Ch E1 (ft) 438.40 Shear (lb /sq ft) 597860.4 Alpha 1.00 Stream Power (lb /ft s) Length Wtd. (ft) Frctn Loss (ft) 0.36 Cum Volume (acre -ft) 207.17 C & E Loss (ft) 0.05 Cum SA (acres) 59.58 n Val .055 Expan. .5 Channel 0.055 420.00 2297.13 2297.13 5645.00 347.25 2.46 6.62 215357.1 356.52 0.28 0.68 835.28 79.44 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.60 Element Left OB Channel Vel Head (ft) 0.15 Wt. n -Val. 0.055 0.054 E.G. Elev (ft) 463.74 Reach Len. (ft) 385.00 420.00 Crit W.S. (ft) Flow Area (sq ft) 241.19 4893.38 E.G. Slope (ft /ft) 0.000778 Area (sq ft) 241.19 4893.38 Q Total (cfs) 16681.00 Flow (cfs) 372.74 15442.17 Top Width (ft) 941.37 Top Width (ft) 81.37 570.00 Vel Total (ft /s) 2.88 Avg. Vel. (ft /s) 1.55 3.16 Max Chl Dpth (ft) 25.20 Hydr. Depth (ft) 2.96 8.58 Conv. Total (cfs) 597860.4 Conv. (cfs) 13359.1 553459.8 Length Wtd. (ft) 393.78 Wetted Per. (ft) 82.16 581.34 Min Ch E1 (ft) 438.40 Shear (lb /sq ft) 0.14 0.41 Right OB 290.00 177.38 86.70 Right OB 0.055 290.00 664.83 664.83 866.10 290.00 1.30 2.29 31041.6 292.63 0.11 Revised Existing Condition HEC -RAS Model - Page 20 Alpha 1.13 Stream Power (lb /ft s) 0.22 1.29 0.14 Frctn Loss (ft) 0.26 Cum Volume (acre -ft) 374.29 1155.36 713.32 C & E Loss (ft) 0.00 Cum SA (acres) 68.46 102.62 177.66 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32725 INPUT Description: CROSS SECTIO Station Elevation Data Sta Elev Sta 0 470 0 1285 461 1568 1940 463 1960 2025 440 2030 2070 445 2080 2165 461 2300 3350 459 3605 3670 459 3695.5 Manning's n Values Sta n Val Sta 0 .05 1273 3670 .05 Bank Sta: Left Right 1940 2150 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 37 Right OB 0.060 0.045 0.055 380.00 Elev Sta Elev Sta Elev Sta Elev 465 90 464 180 465 1273 465 461 1592 453 1842 453 1895 464 460 1981 455 2002 450 2018 445 439 2040 438.2 2050 439 2053 440 450 2090 455 2124 460 2150 461 470 2700 470 2805 470 2885 470 455 3615 452 3628 455 3632 459 467.5 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 1568 .06 1940 .045 2150 .055 Lengths: Left Channel Right 380 420 520 Profile #2 -year ultimate 456.78 Element 0.27 Wt. n -Val. 457.05 Reach Len. (ft) Flow Area (sq ft) 0.001057 Area (sq ft) 7870.00 Flow (cfs) 546.69 Top Width (ft) 3.26 Avg. Vel. (ft /s) 18.58 Hydr. Depth (ft) 242071.1 Conv. (cfs) 417.74 Wetted Per. (ft) 438.20 Shear (lb /sq ft) 1.61 Stream Power (lb /ft s) 0.98 Cum Volume (acre -ft) 0.50 Cum SA (acres) Coeff Contr. Expan. .3 .5 Left OB Channel Right OB 0.060 0.045 0.055 380.00 420.00 520.00 1001.87 1236.41 178.52 1001.87 1236.41 178.52 1884.46 5801.18 184.36 279.58 128.62 138.49 1.88 4.69 1.03 3.58 9.61 1.29 57963.5 178436.9 5670.7 280.58 135.32 140.03 0.24 0.60 0.08 0.44 2.83 0.09 202.74 818.24 176.78 58.34 77.15 86.24 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m) . This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.34 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.060 0.045 0.055 Revised Existing Condition HEC-RAS Model - Page 21 E.G. Elev (ft) 463.48 Reach Len. (ft) 380.00 420.00 520.00 Crit W.S. (ft) Wt. n -Val. Flow Area (sq ft) 3670.18 2366.21 2538.01 E.G. Slope (ft /ft) 0.000581 Area (sq ft) 3670.18 2366.21 2538.01 Q Total (cfs) 22468.00 Flow (cfs) 8609.36 9245.89 4612.75 Top Width (ft) 1406.16 Top Width (ft) 629.34 210.00 566.82 Vel Total (ft /s) 2.62 Avg. Vel. (ft /s) 2.35 3.91 1.82 Max Chl Dpth (ft) 25.14 Hydr. Depth (ft) 5.83 11.27 4.48 Conv. Total (cfs) 932054.6 Conv. (cfs) 357147.5 383553.3 191353.8 Length Wtd. (ft) 430.03 Wetted Per. (ft) 632.09 217.55 570.12 Min Ch E1 (ft) 438.20 Shear (lb /sq ft) 0.21 0.39 0.16 Alpha 1.32 Stream Power (lb /ft s) 0.49 1.54 0.29 Frctn Loss (ft) 0.66 Cum Volume (acre -ft) 357.01 1120.36 702.66 C & E Loss (ft) 0.88 Cum SA (acres) 65.32 98.86 174.81 warning - Divided flow computed for this cross - section. warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32305 INPUT Description: X3 FROM 32305 -34260 REFLECT INEFFECTIVE FLOW AREAS IN ANDREW BROWN PK. BEGIN WITH M 453.65 Element Left OB Channel Right OB Vel Head (ft) 1.92 Wt. n -Val. 0.045 Station Elevation E.G. Elev (ft) Data num= 43 55.00 Crit W.S. (ft) Flow Area (sq ft) 679.73 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 50 470 50 467 135 466 220 465 1323 465 1335 461 1740 461 1825 462 1890 463 1975 464 2045 465 2110 465 2125 464 2140 463 2160 460 2175 455 2204 450 2218 445 2225 440 2232 437.7 2239 438 2245 440 2253 445 2263 450 2281 455 2325 470 3050 470 3140 460 3180 459 3200 458 3218 457 3265 455 3283 452 3289 451 3292 451 3308 452 3329 455 3350 459 3360 460 3369 461 3400 462 3415 462 3615 464 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 50 .05 1323 .055 1740 .06 2110 .045 2325 .065 3415 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2110 2325 55 55 55 .5 .7 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.65 Element Left OB Channel Right OB Vel Head (ft) 1.92 Wt. n -Val. 0.045 0.065 E.G. Elev (ft) 455.57 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) Flow Area (sq ft) 679.73 73.03 E.G. Slope (ft /ft) 0.009028 Area (sq ft) 679.73 73.03 Q Total (cfs) 7870.00 Flow (cfs) 7656.72 213.28 Top Width (ft) 139.80 Top Width (ft) 93.33 46.47 Vel Total (ft /s) 10.45 Avg. Vel. (ft /s) 11.26 2.92 Max Chl Dpth (ft) 15.95 Hydr. Depth (ft) 7.28 1.57 Conv. Total (cfs) 82828.5 Conv. (cfs) 80583.8 2244.7 Length Wtd. (ft) 55.00 Wetted Per. (ft) 99.92 46.84 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 3.83 0.88 Alpha 1.13 Stream Power (lb /ft s) 43.19 2.57 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 809.00 175.28 Revised Existing Condition HEC-RAS Model - Page 22 C & E Loss (ft) 0.81 Cum SA (acres) 57.13 76.08 85.14 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.87 Element Left OB Channel Right OB Vel Head (ft) 3.07 Wt. n -Val. 0.045 0.065 E.G. Elev (ft) 461.95 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) Flow Area (sq ft) 1269.00 601.94 E.G. Slope (ft /ft) 0.010726 Area (sq ft) 1269.00 601.94 Q Total (cfs) 22468.00 Flow (cfs) 19128.38 3339.62 Top width (ft) 295.74 Top Width (ft) 128.97 166.77 Vel Total (ft /s) 12.01 Avg. Vel. (ft /s) 15.07 5.55 Max Chl Dpth (ft) 21.17 Hydr. Depth (ft) 9.84 3.61 Conv. Total (cfs) 216940.8 Conv. (cfs) 184694.9 32245.9 Length Wtd. (ft) 55.00 Wetted Per. (ft) 137.13 167.80 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 6.20 2.40 Alpha 1.37 Stream Power (lb /ft s) 93.40 13.33 Frctn Loss (ft) 0.24 Cum Volume (acre -ft) 341.00 1102.83 683.92 C & E Loss (ft) 0.62 Cum SA (acres) 62.57 97.22 170.43 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32230 INPUT Description: This is a REPEATED section. Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta 900 472 1310 467 1700 462 2000 2201 456.5 2221 456.5 2222 461.5 2430 2610 460.5 2611 456.5 2635 460.5 3000 3380 465 3381 460 3390.5 461.5 3425 3432.01 463 3434.99 463 3435 445 3455 3495 445 3495.01 463 3497.99 463 3498 3539.5 461.5 3550 460 3552 465 3600 3880 463.6 3960 464 4190 466 4340 4340 463.5 4365 452.8 4365 465.4 4366 4380 449.9 4389 451.5 4396 455.2 4396 4397 455.2 4411 463.5 4411 465.4 4411 4534 465.7 4634 465.1 4734 464 4834 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta 900 .055 3390.5 .025 3539.5 .055 4366 Bank Sta: Left Right Lengths: Left Channel Right 3390.5 3539.5 50 50 50 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 900 3050 470 6180 5734 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.88 Element Vel Head (ft) 0.76 Wt. n -Val. E.G. Elev (ft) 454.64 Reach Len. (ft) Crit W.S. (ft) 446.43 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000935 Area (sq ft) Elev Sta Elev 460.5 2200 461.5 459.5 2520 459.5 461 3280 462 450 3432 446.5 435 3475 435 446.5 3505 450 466 3740 464 466.9 4340 465.4 465.4 4366 450.7 465.4 4397 465.4 466.9 4434 466.8 463.2 4934 463.5 n Val Sta n Val .02 4411 .05 Coeff Contr. Expan. .5 .7 Left OB Channel Right OB 0.025 0.020 0.00 0.00 0.00 1057.07 85.53 1057.07 85.53 Revised Existing Condition HEC -RAS Model - Page 23 Q Total (cfs) 7870.00 Flow (cfs) 7500.95 369.05 Top Width (ft) 127.35 Top Width (ft) 97.31 30.04 Vel Total (ft /s) 6.89 Avg. Vel. (ft /s) 7.10 4.32 Max Chl Dpth (ft) 18.88 Hydr. Depth (ft) 10.86 2.85 Conv. Total (cfs) 257429.7 Conv. (cfs) 245358.0 12071.7 Length Wtd. (ft) 0.00 Wetted Per. (ft) 136.98 35.28 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.45 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.20 0.61 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 198.37 807.91 175.18 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 75.96 85.09 warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.89 Element Left OB Channel Right OB Vel Head (ft) 2.19 Wt. n -Val. Deck /Roadway Width 0.025 0.021 E.G. Elev (ft) 461.09 Reach Len. (ft) 0.00 0.00 0.00 Crit W.S. (ft) 455.17 Flow Area (sq ft) 1620.10 287.74 E.G. Slope (ft /ft) 0.002398 Area (sq ft) 1620.10 287.74 Q Total (cfs) 22468.00 Flow (cfs) Upstream 19719.65 2748.35 Top Width (ft) 177.86 Top Width (ft) 127.39 50.47 Vel Total (ft /s•) 11.78 Avg. Vel. (ft /s) 12.17 9.55 Max Chl Dpth (ft) 23.89 Hydr. Depth (ft) Hi Cord Lo Cord 12.72 5.70 Conv. Total (cfs) 458831.7 Conv. (cfs) Lo Cord 402706.1 56125.6 Length Wtd. (ft) 0.00 Wetted Per. (ft) 463 189.43 75.48 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 464 464 1.28 0.57 Alpha 1.02 Stream Power (lb /ft s) 464 15.58 5.45 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 341.00 1101.01 683.36 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 97.06 170.29 Warning - Divided flow computed for this cross - section. BRIDGE RIVER: RIVER -1 REACH: Reach -1 RS: 32215 INPUT Description: Bridge #1 Distance from Upstream XS = 0 Deck /Roadway Width = 50 Weir Coefficient = 2.6 Bridge Deck /Roadway Skew = Upstream Deck /Roadway Coordinates num= 9 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Upstream Bridge Cross Section Data Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. Revised Existing Condition HEC-RAS Model - Page 24 3390.5 3539.5 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 900 3050 470 6180 5734 470 Downstream Deck /Roadway Coordinates num= 9 62 Selected Low Flow Methods = Energy Sta Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Downstream Bridge Cross Section Data Station Elevation Data num= 62 Selected Low Flow Methods = Energy Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5• 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. 3390.5 3539.5 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 900 3050 470 5734 5734 470 Upstream Embankment side slope = 0 horiz. to 1.0 vertical Downstream Embankment side slope = 0 horiz. to 1.0 vertical Maximum allowable submergence for weir flow = .95 Elevation at which weir flow begins = Energy head used in spillway design = Spillway height used in design = weir crest shape = Broad Crested Number of Bridge Coefficient Sets = 1 Low Flow Methods and Data Energy Selected Low Flow Methods = Energy High Flow Method Energy Only Additional Bridge Parameters Add Friction component to Momentum Do not add Weight component to Momentum Class B flow critical depth computations use critical depth inside the bridge at the downstream end Criteria to check for pressure flow = Upstream water surface BRIDGE OUTPUT Profile #2 -year ultimate Opening : Bridge #1 E.G. US. (ft) 454.64 Element Inside BR US Inside BR DS W.S. US. (ft) 453.88 E.G. Elev (ft) 454.64 454.59 Q Total (cfs) 7870.00 W.S. Elev (ft) 453.88 453.82 Q Bridge (cfs) 7870.00 Crit W.S. (ft) 446.42 446.40 Q Weir (cfs) Max Chl Dpth (ft) 18.88 18.82 Weir Sta Lft (ft) Vel Total (ft /s) 6.89 6.94 Weir Sta Rgt (ft) Flow Area (sq ft) 1142.60 1134.53 Revised Existing Condition HEC-RAS Model - Page 25 Weir Submerg Elevation Froude # Chl 0.38 0.38 Weir Max Depth (ft) Specif Force (cu ft) 9718.17 9658.05 Min Top Rd (ft) 461.18 Hydr Depth (ft) 8.97 8.95 Min E1 Prs (ft) 465.40 W.P. Total (ft) 172.25 171.43 Delta EG (ft) 0.05 Conv. Total (cfs) 257429.7 255157.0 Delta WS (ft) 0.06 Top Width (ft) 127.35 126.70 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.05 0.00 BR Open Vel (ft /s) 6.94 C & E Loss (ft) 0.01 0.00 Coef of Q 460.5 Shear Total (lb /sq ft) 0.39 0.39 Br Sel Mthd Energy only Power Total (lb /ft s) 2.67 2.73 BRIDGE OUTPUT Profile #100 -year ultimat 3381 460 Opening : Bridge #1 461.5 3425 450 3432 E.G. US. (ft) 461.09 Element Inside BR US Inside BR DS W.S. US. (ft) 458.89 E.G. Elev (ft) 461.09 460.88 Q Total (cfs) 22468.00 W.S. Elev (ft) 458.89 458.54 Q Bridge (cfs) 22468.00 Crit W.S. (ft) 455.16 455.15 Q Weir (cfs) 3539.5 Max Chl Dpth (ft) 23.89 23.54 Weir Sta Lft (ft) 465 Vel Total (ft /s) 11.78 12.17 Weir Sta Rgt (ft) 3880 Flow Area (sq ft) 1907.84 1845.86 Weir Submerg 466 Froude # Chl 0.60 0.62 Weir Max Depth-(ft) 4340 Specif Force (cu ft) 23822.97 23440.39 Min Top Rd (ft) 461.18 Hydr Depth (ft) 10.73 10.59 Min E1 Prs (ft) 465.40 W.P. Total (ft) 264.92 258.15 Delta EG (ft) 0.20 Conv. Total (cfs) 458831.7 441863.7 Delta WS (ft) 0.35 Top Width (ft) 177.86 174.33 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.12 0.00 BR Open Vel (ft /s) 12.17 C & E Loss (ft) 0.08 0.00 Coef of Q Shear Total (lb /sq ft) 1.08 1.15 Br Sel Mthd Energy only Power Total (lb /ft s) 12.70 14.05 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32200 INPUT Description: DENTON TAP ROAD BRIDGES - FROM KIMLEY -HORN MODEL. W/n VALUE CHANGES -AHH Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 Revised Existing Condition HEC -RAS Model - Page 26 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 Right OB 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 0.021 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 50.00 5014 464.4 5734 466 Flow Area (sq ft) 1575.64 270.22 Manning's n Values num= 5 1575.64 270.22 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 2655.26 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 49.05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 9.83 3390.5 3539.5 23.54 50 50 50 .5 .7 5.51 Blocked Obstructions num= 2 389644.3 52219.4 Sta L Sta R Elev Sta L Sta R Elev 185.66 72.49 900 3050 470 5734 5734 470 1.37 0.60 CROSS SECTION OUTPUT Profile #2 -year ultimate Stream Power (lb /ft s) 17.23 W.S. Elev (ft) 453.82 Element Left OB Channel Right OB Vel Head (ft) 0.77 Wt. n -Val. Cum SA (acres) 0.025 0.020 E.G. Elev (ft) 454.59 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) Flow Area (sq ft) 1050.90 83.63 E.G. Slope (ft /ft) 0.000951 Area (sq ft) 1050.90 83.63 Q Total (cfs) 7870.00 Flow (cfs) 7508.97 361.03 Top Width (ft) • 126.70 Top Width (ft) 96.93 29.77 Vel Total (ft /s) 6.94 Avg. Vel. (ft /s) 7.15 4.32 Max Chl Dpth (ft) 18.82 Hydr. Depth (ft) 10.84 2.81 Conv. Total (cfs) 255157.0 Conv. (cfs) 243452.0 11705.1 Length Wtd. (ft) 50.00 Wetted Per. (ft) 136.57 34.85 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.46 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.27 0.62 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 806.70 175.09 C & E Loss (ft) 0.22 Cum SA (acres) 57.13 75.85 85.06 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.54 Element Left OB Channel Right OB Vel Head (ft) 2.34 Wt. n -Val. 0.025 0.021 E.G. Elev (ft) 460.88 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) Flow Area (sq ft) 1575.64 270.22 E.G. Slope (ft /ft) 0.002586 Area (sq ft) 1575.64 270.22 Q Total (cfs) 22468.00 Flow (cfs) 19812.74 2655.26 Top Width (ft) 174.33 Top Width (ft) 125.28 49.05 Vel Total (ft /s) 12.17 Avg. Vel. (ft /s) 12.57 9.83 Max Chl Dpth (ft) 23.54 Hydr. Depth (ft) 12.58 5.51 Conv. Total (cfs) 441863.7 Conv. (cfs) 389644.3 52219.4 Length Wtd. (ft) 50.00 Wetted Per. (ft) 185.66 72.49 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 1.37 0.60 Alpha 1.02 Stream Power (lb /ft s) 17.23 5.91 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 1099.17 683.04 C & E Loss (ft) 0.40 Cum SA (acres) 62.57 96.92 170.24 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32150 INPUT Description: FROM KIMLEY -HORN MODEL. Revised Existing Condition HEC -RAS Model - Page 27 END AHH CROSS SECTION Station Elevation Data num= 40 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 470 1600 461 1800 461 2000 458 2100 459 2200 457 2220 457 2320 459 2620 456.5 2640 455 2650 457• 2680 456.5 2900 459 3100 459 3200 460 3300 461.5 3400 460.5 3427 437 3440 437 3470 437 3475 437 3489 437 3505 447 3525 460 3650 461.5 3920 458 3980 459 4240 458 4280 456 4350 456 4350 452 4380 453.5 4400 457.5 4520 458 4720 461 5110 461 5200 462 5460 462 5800 464 6180 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 3400 .035 3525 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 3400 3525 160 170 180 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 3040 470 6180 6180 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.87 Element Left OB Channel Right OB Vel Head (ft) 0.46 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 454.34 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1436.04 34.06 E.G. Slope (ft /ft) 0.000600 Area (sq ft) 1436.04 34.06 Q Total (cfs) 7870.00 Flow (cfs) 7847.36 22.64 Top Width (ft) 139.83 Top Width (ft) 107.96 31.87 Vel Total (ft /s) 5.35 Avg. Vel. (ft /s) 5.46 0.66 Max Chl Dpth (ft) 16.87 Hydr. Depth (ft) 13.30 1.07 Conv. Total (cfs) 321354.4 Conv. (cfs) 320429.9 924.4 Length Wtd. (ft) 171.13 Wetted Per. (ft) 119.18 33.82 Min Ch E1 (ft) 437.00 Shear (lb /sq ft) 0.45 0.04 Alpha 1.04 Stream Power (lb /ft s) 2.47 0.03 Frctn Loss (ft) 0.20 Cum Volume (acre -ft) 198.37 805.27 175.02 C & E Loss (ft) 0.09 Cum SA (acres) 57.13 75.73 85.02 warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.61 Element Left OB Channel Right OB Vel Head (ft) 1.77 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 460.37 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1976.97 671.93 E.G. Slope (ft /ft) 0.001840 Area (sq ft) 1976.97 671.93 Q Total (cfs) 22468.00 Flow (cfs) 21543.16 924.84 Top Width (ft) 681.40 Top Width (ft) 120.68 560.72 Vel Total (ft /s) 8.48 Avg. Vel. (ft /s) 10.90 1.38 Revised Existing Condition HEC -RAS Model - Page 28 Max Chl Dpth (ft) 21.61 Hydr. Depth (ft) 16.38 1.20 Conv. Total (cfs) 523768.5 Conv. (cfs) 502209.0 21559.5 Length Wtd. (ft) 173.63 Wetted Per. (ft) 135.07 565.22 Min Ch E1 (ft) 437.00 Shear (lb /sq ft) 1.68 0.14 Alpha 1.58 Stream Power (lb /ft s) 18.32 0.19 Frctn Loss (ft) 0.22 Cum Volume (acre -ft) 341.00 1097.14 682.50 C & E Loss (ft) 1.10 Cum SA (acres) 62.57 96.77 169.89 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 31335 INPUT Description: Station Elevation Data num= 30 cross sections. Warning - The conveyance Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev in the main channel. 1037 461 1045 460 1065 455 1094 450 1130 438.55 Left OB Channel 1140 438.55 - 1176 450 1184 455 1193 460 1204 461 377.00 377.00 1228 461 1231 460 1250 458 1283 458 1310 455 1530.55 1380 452 1451 451 1514 451 1849 454 2023 455 141.34 2059 456 2090 457.6 2097 455 2103 449 2117 449 10.83 2124 450 2141 456 2168 457 2180 460 2193 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1037 .05 1094 .04 1176 .07 1283 .045 2059 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1037 1204 377 377 344 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.40 Element Left OB Channel Right OB Vel Head (ft) 0.65 Wt. n -Val. 0.044 0.049 E.G. Elev (ft) 454.05 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 848.55 746.75 E.G. Slope (ft /ft) 0.003033 Area (sq ft) 848.55 746.75 Q Total (cfs) 7870.00 Flow (cfs) 6113.19 1756.81 Top Width (ft) 577.24 Top Width (ft) 107.18 470.06 Vel Total (ft /s) 4.93 Avg. Vel. (ft /s) 7.20 2.35 Max Chl Dpth (ft) 14.85 Hydr. Depth (ft) 7.92 1.59 Conv. Total (cfs) 142907.2 Conv. (cfs) 111006.1 31901.1 Length Wtd. (ft) 362.85 Wetted Per. (ft) 112.00 472.59 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 1.43 0.30 Alpha 1.71 Stream Power (lb /ft s) 10.33 0.70 Frctn Loss (ft) 0.39 Cum Volume (acre -ft) 198.37 800.81 173.40 C & E Loss (ft) 0.17 Cum SA (acres) 57.13 75.31 83.98 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.85 Element Left OB Channel Right OB Vel Head (ft) 0.21 Wt. n -Val. 0.047 0.046 E.G. Elev (ft) 459.06 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 1530.55 4987.61 E.G. Slope (ft /ft) 0.000949 Area (sq ft) 1530.55 4987.61 Q Total (cfs) 22468.00 Flow (cfs) 7062.38 15405.62 Top Width (ft) 1074.83 Top Width (ft) 141.34 933.50 Vel Total (ft /s) 3.45 Avg. Vel. (ft /s) 4.61 3.09 Max Chl Dpth (ft) 20.30 Hydr. Depth (ft) 10.83 5.34 Revised Existing Condition HEC -RAS Model - Page 29 Conv. Total (cfs) 729246.6 Conv. (cfs) 229224.4 500022.2 Length Wtd. (ft) 352.13 Wetted Per. (ft) 148.23 938.15 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.61 0.32 Alpha 1.11 Stream Power (lb /ft s) 2.82 0.97 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 341.00 1090.29 670.80 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 96.26 166.80 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30958 INPUT Description: Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1048 461 1056 460 1076 455 1093 450 1134 438.55 1142 438.55 1183 450 1192 455 1252 460 1285 462 1298 465.3 1346 450 1362 447 1407 446.2 1469 447 1537 448 • 1600 449 1746 450 1896 452 1995 453 2024 455 2058 458 2101 455 2146 455 2157 448 2173 448 2177 450 2196 456 2232 457 2380 459 2504 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1048 .05 1093 .04 1183 .07 1346 .045 2024 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1048 1285 303 354 302 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.40 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.043 0.046 E.G. Elev (ft) 453.49 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 897.16 2699.23 E.G. Slope (ft /ft) 0.000545 Area (sq ft) 897.16 2699.23 Q Total (cfs) 7870.00 Flow (cfs) 2875.54 4994.46 Top Width (ft) 812.41 Top Width (ft) 107.68 704.73 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 3.21 1.85 Max Chl Dpth (ft) 14.85 Hydr. Depth (ft) 8.33 3.83 Conv. Total (cfs) 337251.2 Conv. (cfs) 123225.0 214026.2 Length Wtd. (ft) 335.40 Wetted Per. (ft) 112.19 708.17 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.27 0.13 Alpha 1.24 Stream Power (lb /ft s) 0.87 0.24 Frctn Loss (ft) 0.27 Cum Volume (acre -ft) 198.37 793.26 159.80 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 74.38 79.34 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.72 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.052 0.046 E.G. Elev (ft) 458.82 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 1617.66 7165.81 E.G. Slope (ft /ft) 0.000402 Area (sq ft) 1617.66 7165.81 Q Total (cfs) 22468.00 Flow (cfs) 4005.76 18462.24 Top Width (ft) 1215.83 Top Width (ft) 175.46 1040.37 Vel Total (ft /s) 2.56 Avg. Vel. (ft /s) 2.48 2.58 Max Chl Dpth (ft) 20.17 Hydr. Depth (ft) 9.22 6.89 Conv. Total (cfs) 1120861.8 Conv. (cfs) 199835.5 921026.3 Length Wtd. (ft) 326.39 Wetted Per. (ft) 181.23 1045.82 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.22 0.17 Revised Existing Condition HEC -RAS Model - Page 30 Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.03 Cum SA (acres) 0.55 0.44 341.00 1076.67 622.81 62.57 94.89 159.01 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30604 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 312 +30 Station Elevation Data Sta Elev Sta 1014 461 1022 1141 438.55 1187 1244 450 124) 1295 446 1297 1350 461 1454 1473 446 1488 1582 461 1601 1751 452 1796 1876 450 1885 2048 456 2191 Manning's n Values Sta n Val Sta 1014 .05 1063 1601 .045 1831 Bank Sta: Left Right 1014 1350 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 49 Left OB Channel Right OB 0.29 Wt. n -Val. Elev Sta Elev Sta Elev Sta Elev 460 1042 455 1063 450 1109 438.55 450 1211 455 1220 455.8 1230 455 449 1273 448 1276 447 1282 446 447 1301 450 1316 455 1340 460 461 1457 460 1464 455 1469 450 446 1496 450 1506 455 1527 460 461 1618 460 1653 455 1730 452 455 1831 458 1863 458 1867 455 447 1895 447 1898 450 1917 455 458 2247 459 2395 461 num= 7 n Val Sta n Val Sta n Val Sta n Val .04 1187 .065 1247 .04 1301 .07 .07 Lengths: Left Channel Right Coeff Contr. Expan. 269 220 319 .1 .3 Profile #2 -year ultimate 452.91 Element Left OB Channel Right OB 0.29 Wt. n -Val. 0.045 0.069 453.20 Reach Len. (ft) 269.00 220.00 319.00 Flow Area (sq ft) 1615.90 346.61 0.001371 Area (sq ft) 1615.90 346.61 7870.00 Flow (cfs) 7234.89 635.11 355.94 Top Width (ft) 224.03 131.91 4.01 Avg. Vel. (ft /s) 4.48 1.83 14.36 Hydr. Depth (ft) 7.21 2.63 212562.1 Conv. (cfs) 195408.3 17153.7 230.85 Wetted Per. (ft) 230.12 139.31 438.55 Shear (lb /sq ft) 0.60 0.21 1.16 Stream Power (lb /ft s) 2.69 0.39 0.26 Cum Volume (acre -ft) 198.37 783.05 149.24 0.02 Cum SA (acres) 57.13 73.03 76.44 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Revised Existing Condition HEC -RAS Model - Page 31 W.S. Elev (ft) 458.15 Element Left OB Channel Right OB Vel Head (ft) 0.40 Wt. n -Val. 0.050 0.057 E.G. Elev (ft) 458.55 Reach Len. (ft) 269.00 220.00 319.00 Crit W.S. (ft) Flow Area (sq ft) 3015.21 2112.45 E.G. Slope (ft /ft) 0.001734 Area (sq ft) 3015.21 2112.45 Q Total (cfs) 22468.00 Flow (cfs) 17070.96 5397.04 Top Width (ft) 929.54 Top Width (ft) Elev 301.69 627.85 Vel Total (ft /s) 4.38 Avg. Vel. (ft /s) 1045 462 5.66 2.55 Max Chl Dpth (ft) 19.60 Hydr. Depth (ft) 438.14 9.99 3.36 Conv. Total (cfs) 539618.1 Conv. (cfs) 459 409996.5 129621.6 Length Wtd. (ft) 241.77 Wetted Per. (ft) 450 309.72 640.28 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 1377 450 1.05 0.36 Alpha 1.35 Stream Power (lb /ft s) 460.7 5.97 0.91 Frctn Loss (ft) 0.45 Cum Volume (acre -ft) 341.00 1057.84 590.65 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 92.95 153.22 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30384 INPUT Description: Station Elevation Data num= 46 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1045 462 1053 460 1073 455 1095 450 1142 438.14 1178 438.14 1225 450 1246 455 1270 459 1287 460 1307 455 1320 450 1328 446 1333 446 1371 447 1377 450 1391 455 1413 459 1447 460 1481 460.7 1504 460 1570 460 1640 459.8 1650 459 1658 455 1668 450 1673 445 1689 445 1694 450 1697 455 1716 460 1756 460 1788 461.3 1800 461 1815 459 1888 458 1930 455 1951 450 1958 445 1967 445 1977 450 1982 455 2004 458 2077 458 2096 458 2150 460 Manning's n Values num= 9 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1045 .05 1095 .04 1225 .065 1320 .04 1377 .07 1668 .045 1694 .07 1951 .045 1977 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1045 1447 371 357 410 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.69 Element Left OB Channel Right OB Vel Head (ft) 0.23 Wt. n -Val. 0.044 0.045 E.G. Elev (ft) 452.92 Reach Len. (ft) 371.00 357.00 410.00 Crit W.S. (ft) Flow Area (sq ft) 1716.13 360.62 E.G. Slope (ft /ft) 0.000945 Area (sq ft) 1716.13 360.62 Q Total (cfs) 7870.00 Flow (cfs) 6779.75 1090.25 Top Width (ft) 297.65 Top Width (ft) 224.66 72.98 Vel Total (ft /s) 3.79 Avg. Vel. (ft /s) 3.95 3.02 Max Chl Dpth (ft) 14.55 Hydr. Depth (ft) 7.64 4.94 Conv. Total (cfs) 256027.7 Conv. (cfs) 220559.5 35468.2 Length Wtd. (ft) 363.34 Wetted Per. (ft) 230.86 83.50 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.44 0.25 Alpha 1.02 Stream Power (lb /ft s) 1.73 0.77 Frctn Loss (ft) 0.29 Cum Volume (acre -ft) 198.37 774.63 146.65 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 71.90 75.69 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 457.56 Element Left OB Channel Right OB Vel Head (ft) 0.53 Wt. n -Val. 0.049 0.048 Revised Existing Condition HEC -RAS Model - Page 32 E.G. Elev (ft) 458.09 Reach Len. (ft) 371.00 357.00 410.00 Crit W.S. (ft) 1000 Flow Area (sq ft) 2993.49 871.50 E.G. Slope (ft /ft) 0.001985 Area (sq ft) 2993.49 871.50 Q Total (cfs) 22468.00 Flow (cfs) 17980.63 4487.37 Top Width (ft) 467.27 Top Width (ft) 306.88 160.40 Vel Total (ft /s) 5.81 Avg. Vel. (ft /s) 6.01 5.15 Max Chl Dpth (ft) 19.42 Hydr. Depth (ft) 9.75 5.43 Conv. Total (cfs) 504244.3 Conv. (cfs) 403535.2 100709.1 Length Wtd. (ft) 370.09 Wetted Per. (ft) 315.50 175.19 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 1.18 0.62 Alpha 1.01 Stream Power (lb /ft s) 7.06 3.17 Frctn Loss (ft) 0.56 Cum Volume (acre -ft) 341.00 1042.67 579.73 C & E Loss (ft) 0.06 Cum SA (acres) 62.57 91.42 150.34 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30027 INPUT Description: NEW AHHA CROSS SECTION Station Elevation Data num= Sta Elev Sta Elev 1000 465.3 1074 464 1144 460 1182 450 1222 442 1240 438.23 1367 460 1390 458 1494 450 1516 460 1804 454 1816 452 2050 452 2067 454 2242 462 1644 460 Manning's n Values 1787 num= Sta n Val Sta n Val 1000 .05 1182 .04 1644 .045 2134 460 36 Lengths: Left Channel Right 1139 1516 0.044 148 196 299 Sta Elev Sta Elev Sta Elev 1084 463.1 1112 463.1 1139 462 1190 448 1199 446 1210 444 1267 438.23 1314 450 1350 458 1432 450 1444 439.8 1481 439.8 1644 460 1755 458 1787 456 1872 450 1952 449.6 2037 450 2080 456 2104 458 2134 460 6 Sta n Val Sta n Val Sta n Val 1314 .065 1432 .04 1494 .07 Bank Sta: Left Right Lengths: Left Channel Right 1139 1516 0.044 148 196 299 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.43 Element Vel Head (ft) 0.18 Wt. n -Val. E.G. Elev (ft) 452.61 Reach Len. (ft) Crit W.S. (ft) 232.24 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000698 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 472.44 Top Width (ft) Vel Total (ft /s) 3.15 Avg. Vel. (ft /s) Max Chl Dpth (ft) 14.20 Hydr. Depth (ft) Conv. Total (cfs) 297783.7 Conv. (cfs) Length Wtd. (ft) 216.61 Wetted Per. (ft) Min Ch E1 (ft) 438.23 Shear (lb /sq ft) Alpha 1.20 Stream Power (lb /ft s) Frctn Loss (ft) 0.12 Cum Volume (acre -ft) C & E Loss (ft) 0.02 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.044 0.045 148.00 196.00 299.00 1968.65 533.46 1968.65 533.46 7078.10 791.90 232.24 240.20 3.60 1.48 8.48 2.22 267820.0 29963.7 243.50 240.46 0.35 0.10 1.27 0.14 198.37 759.53 142.44 57.13 70.03 74.22 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. Revised Existing Condition HEC -RAS Model - Page 33 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 457.15 Element Left OB Channel Right OB Vel Head (ft) 0.32 Wt. n -Val. 0.049 0.045 E.G. Elev (ft) 457.47 Reach Len. (ft) 148.00 196.00 299.00 Crit W.S. (ft) Flow Area (sq ft) 3240.21 1839.73 E.G. Slope (ft /ft) 0.001177 Area (sq ft) 3240.21 1839.73 Q Total (cfs) 22468.00 Flow (cfs) 15860.52 6607.48 Top Width (ft) 631.71 Top Width (ft) 306.58 325.14 Vel Total (ft /s) 4.42 Avg. Vel. (ft /s) 4.89 3.59 Max Chl Dpth (ft) 18.92 Hydr. Depth (ft) Elev 10.57 5.66 Conv. Total (cfs) 654818.4 Conv. (cfs) 1000 465.3 462246.8 192571.7 Length Wtd. (ft) 237.86 Wetted Per. (ft) 463.2 320.44 325.96 Min Ch E1 (ft) 438.23 Shear (lb /sq ft) 452 0.74 0.41 Alpha 1.06 Stream Power (lb /ft s) 444 3.64 1.49 Frctn Loss (ft) 0.18 Cum Volume (acre -ft) 341.00 1017.12 566.97 C & E Loss (ft) 0.04 Cum SA (acres) 62.57 88.90 148.05 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29831 INPUT Description: Station Elevation Data num= 55 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465.3 1038 465.3 1085 464 1102 463.2 1130 463.2 1155 462 1159 460 1182 454 1189 452 1197 450 1220 446 1239 444 1261 442 1264 438.14 1296 438.14 1336 450 1345 452 1368 458 1377 460 1388 462 1402 462.2 1418 462 1434 460 1445 458 1470 452 1477 450 1490 439.3 1527 439.3 1528 450 1555 458 1594 458 1612 456 1653 456 1669 454 1684 452 1808 450 1857 448.5 2090 448.5 2099 450 2133 456 2179 457.5 2276 458 2369 458 2389 456 2396 454 2401 452.5 2406 454 2414 456 2423 458 2430 460 2447 461.3 2480 460 2540 458 2760 458 2770 460 Manning's n Values num= 10 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1182 .04 1418 .065 1477 .04 1528 .07 1653 .045 1857 .035 2090 .045 2276 .075 2540 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1155 1555 171 180 197 .1 .3 Ineffective Flow num= 1 Sta L Sta R Elev 2275 2770 460 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.36 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.042 0.037 E.G. Elev (ft) 452.47 Reach Len. (ft) 171.00 180.00 197.00 Crit W.S. (ft) 445.37 Flow Area (sq ft) 1904.13 1265.87 E.G. Slope (ft /ft) 0.000440 Area (sq ft) 1904.13 1265.87 Q Total (cfs) 7870.00 Flow (cfs) 5516.39 2353.61 Top Width (ft) 657.26 Top Width (ft) 226.15 431.11 Vel Total (ft /s) 2.48 Avg. Vel. (ft /s) 2.90 1.86 Max Chl Dpth (ft) 14.22 Hydr. Depth (ft) 8.42 2.94 Conv. Total (cfs) 375281.1 Conv. (cfs) 263049.2 112231.9 Length Wtd. (ft) 183.49 Wetted Per. (ft) 245.11 431.50 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.21 0.08 Alpha 1.12 Stream Power (lb /ft s) 0.62 0.15 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 198.37 750.82 136.27 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 68.99 71.92 Revised Existing Condition HEGRAS Model - Page 34 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat INPUT W.S. Elev (ft) 457.07 Element Left OB Channel Vel Head (ft) 0.18 Wt. n -Val. 0.046 E.G. Elev (ft) 457.25 Reach Len. (ft) 171.00 180.00 Crit W.S. (ft) 450.79 Flow Area (sq ft) Sta Elev 3134.07 E.G. Slope (ft /ft) 0.000531 Area (sq ft) Sta 3134.07 Q Total (cfs) 22468.00 Flow (cfs) 1185 460 1224 10817.55 Top Width (ft) 900.93 Top Width (ft) 1266 297.14 Vel Total (ft /s) 3.39 Avg. Vel. (ft /s) 438.06 3.45 Max Chl Dpth (ft) 18.93 Hydr. Depth (ft) 460.1 10.55 Conv. Total (cfs) 974871.0 Conv. (cfs) 450 469365.9 Length Wtd. (ft) 187.92 Wetted Per. (ft) 1610 458 318.57 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 1668 0.33 Alpha 1.00 Stream Power (lb /ft s) 1775 450 1872 1.13 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 1002.78 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 87.54 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29651 INPUT Description: Station Elevation Data num= 49 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1147 462 1176 462 1185 460 1224 450 1235 448 1248 446 1266 444 1280 442 1290 438.06 1320 438.06 1365 450 1395 458 1411 460 1440 460.1 1474 460 1490 458 1531 450 1553 438.8 1589 438.9 1598 450 1610 458 1640 458 1648 456 1658 454 1668 4S2 1709 450 1735 449.3 1775 450 1872 452 1960 451 2075 450 2120 449.7 2153 450 2181 452 2198 454 2214 456 2240 458 2395 459 2428 458 2468 456.5 2533 456.5 2552 456 2565 454 2575 453.9 2577 454 2585 456 2600 458 2667 459.2 2772 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1147 .05 1224 .04 1411 .065 1531 .04 1598 .07 1640 .045 2468 .075 2600 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1176 1610 600 527 404 .1 .3 Ineffective Flow num= 1 Sta L Sta R Elev 2395 2772 460 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.21 Element Left OB Channel Vel Head (ft) 0.17 Wt. n -Val. 0.042 E.G. Elev (ft) 452.37 Reach Len. (ft) 600.00 527.00 Crit W.S. (ft) 444.94 Flow Area (sq ft) 2032.78 E.G. Slope (ft /ft) 0.000589 Area (sq ft) 2032.78 Q Total (cfs) 7870.00 Flow (cfs) 6990.47 Top Width (ft) 755.28 Top Width (ft) 239.50 Vel Total (ft /s) 2.77 Avg. Vel. (ft /s) 3.44 Max Chl Dpth (ft) 14.15 Hydr. Depth (ft) 8.49 Conv. Total (cfs) 324236.9 Conv. (cfs) 288000.9 Length Wtd. (ft) 520.12 Wetted Per. (ft) 251.81 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.30 Alpha 1.39 Stream Power (lb /ft s) 1.02 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 198.37 742.69 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 68.03 Right OB 0.038 197.00 3500.39 3577.82 11650.45 603.79 3.33 6.21 505505.1 564.34 0.21 0.68 548.37 144.86 Right OB 0.045 404.00 811.47 811.47 879.53 515.79 1.08 1.57 36236.0 515.99 0.06 0.06 131.57 69.78 Revised Existing Condition HEC -RAS Model - Page 35 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. Elev CROSS SECTION OUTPUT Profile #100 -year ultimat Sta Elev W.S. Elev (ft) 456.94 Element Left OB Channel Right OB Vel Head (ft) 0.19 Wt. n -Val. 1341 0.045 0.045 E.G. Elev (ft) 457.13 Reach Len. (ft) 600.00 527.00 404.00 Crit W.S. (ft) 450.26 Flow Area (sq ft) 1450 3327.38 3405.73 E.G. Slope (ft /ft) 0.000649 Area (sq ft) 1533 437.6 1540 3327.38 3530.40 Q Total (cfs) 22468.00 Flow (cfs) 1563 13173.52 9294.48 Top Width (ft) 1025.04 Top Width (ft) 307.11 717.93 Vel Total (ft /s) 3.34 Avg. Vel. (ft /s) 2254 3.96 2.73 Max Chl Dpth (ft) 18.88 Hydr. Depth (ft) 2345 456 2370 10.83 5.85 Conv. Total (cfs) 881787.4 Conv. (cfs) 517012.8 364774.6 Length Wtd. (ft) 487.62 Wetted Per. (ft) 322.54 582.99 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.42 0.24 Alpha 1.10 Stream Power (lb /ft s) 1540 .07 1660 1.66 0.65 Frctn Loss (ft) 0.34 Cum Volume (acre -ft) 341.00 989.43 532.30 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 86.30 141.88 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29124 INPUT Description: * * * ** SECTION "C" * * * ** NEW AHHA CROSS SECTION Station Elevation Data num= 35 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1209 462 1242 460 1248 458 1275 458 1322 450 1338 446 1341 444 1344 442 1358 437.83 1400 437.83 1417 442 1421 444 1427 446 1436 450 1450 451.4 1458 450 1503 437.4 1533 437.6 1540 450 1544 452 1553 454 1563 456 1587 458 1617 458.5 1660 458 1670 456 1687 454 1700 452 1980 453.4 2254 452 2303 452 2320 454 2345 456 2370 458 2415 460 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 1209 .05 1322 .04 1540 .07 1660 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1242 1617 161 234 337 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.84 Element Left OB Channel Right OB Vel Head (ft) 0.22 Wt. n -Val. 0.040 E.G. Elev (ft) 452.06 Reach Len. (ft) 161.00 234.00 337.00 Crit W.S. (ft) Flow Area (sq ft) 2068.09 E.G. Slope (ft /ft) 0.000578 Area (sq ft) 2068.09 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 232.47 Top Width (ft) 232.47 Vel Total (ft /s) 3.81 Avg. Vel. (ft /s) 3.81 Max Chl Dpth (ft) 14.44 Hydr. Depth (ft) 8.90 Conv. Total (cfs) 327451.6 Conv. (cfs) 327451.6 Length Wtd. (ft) 243.46 Wetted Per. (ft) 246.68 Min Ch El (ft) 437.40 Shear (lb /sq ft) 0.30 Alpha 1.00 Stream Power (lb /ft s) 1.15 Frctn Loss (ft) 0.16 Cum Volume (acre -ft) 198.37 717.88 127.81 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 65.18 67.38 Revised Existing Condition HEC-RAS Model - Page 36 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.42 Element Left OB Channel Right OB Vel Head (ft) 0.36 Wt. n -Val. 0.040 0.045 E.G. Elev (ft) 456.78 Reach Len. (ft) 161.00 234.00 337.00 Crit W.S. (ft) Flow Area (sq ft) 3243.10 2442.38 E.G. Slope (ft /ft) 0.000729 Area (sq ft) 3243.10 2442.38 Q Total (cfs) 22468.00 Flow (cfs) 17375.62 5092.38 Top Width (ft) 966.17 Top Width (ft) 283.79 682.38 Vel Total (ft /s) 3.95 Avg. Vel. (ft /s) 5.36 2.09 Max Chl Dpth (ft) 19.02 Hydr. Depth (ft) 11.43 3.58 Conv. Total (cfs) 832155.4 Conv. (cfs) 643546.9 188608.5 Length Wtd. (ft) 273.79 Wetted Per. (ft) 298.86 682.91 Min Ch E1 (ft) 437.40 Shear (lb /sq ft) 0.49 0.16 Alpha 1.48 Stream Power (lb /ft s) 2.65 0.34 Frctn Loss (ft) 0.19 Cum Volume (acre -ft) 341.00 949.69 504.60 C & E Loss (ft) 0.06 Cum SA (acres) 62.57 82.72 135.38 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28890 INPUT Description: Station Elevation Data num= 41 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1239 462 1275 460 1304 458 1346 450 1380 442 1388 437.71 1433 437.71 1437 442 1480 450 1514 458 1553 459.1 1580 458 1614 450 1633 437.5 1637 437.1 1670 450 1685 458 1705 458.5 1729 458 1740 456 1746 454 1759 452 1773 450 1800 449.1 1890 450 1989 450.8 2092 452 2164 452 2250 450 2275 450 2331 450.5 2394 452 2439 453 2457 452 2467 450 2478 448 2486 446.5 2507 446.5 2534 448 2544 450 2654 452 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1239 .05 1346 .04 1480 .065 1614 .04 1670 .075 1705 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1275 1705 153 170 194 .1 .3 Blocked Obstructions num= 1 Sta L Sta R Elev 2544 2654 460 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.70 Element Left OB Channel Right OB Vel Head (ft) 0.19 Wt. n -Val. 0.043 0.045 E.G. Elev (ft) 451.89 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) Flow Area (sq ft) 1710.91 970.47 E.G. Slope (ft /ft) 0.000801 Area (sq ft) 1710.91 970.47 Q Total (cfs) 7870.00 Flow (cfs) 6423.75 1446.25 Top Width (ft) 811.84 Top Width (ft) 216.57 595.27 Vel Total (ft /s) 2.94 Avg. Vel. (ft /s) 3.75 1.49 Max Chl Dpth (ft) 14.60 Hydr. Depth (ft) 7.90 1.63 Conv. Total (cfs) 278052.8 Conv. (cfs) 226955.8 51097.0 Length Wtd. (ft) 178.14 Wetted Per. (ft) 228.36 597.88 Min Ch E1 (ft) 437.10 Shear (lb /sq ft) 0.37 0.08 Alpha 1.38 Stream Power (lb /ft s) 1.41 0.12 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 198.37 707.73 124.05 C & E Loss (ft) 0.04 Cum SA (acres) 57.13 63.97 65.08 Warning - Divided flow computed for this cross - section. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Revised Existing Condition HEGRAS Model - Page 37 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.38 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 0.048 0.045 E.G. Elev (ft) 456.53 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) Flow Area (sq ft) 2896.54 4619.45 E.G. Slope (ft /ft) 0.000639 Area (sq ft) 2896.54 4619.45 Q Total (cfs) 22468.00 Flow (cfs) 10200.87 12267.13 Top Width (ft) 1095.86 Top Width (ft) 289.75 806.11 Vel Total (ft /s) 2.99 Avg. Vel. (ft /s) 3.52 2.66 Max Chl Dpth (ft) 19.28 Hydr. Depth (ft) 10.00 5.73 Conv. Total (cfs) 888854.1 Conv. (cfs) 403555.4 485298.8 Length Wtd. (ft) 184.58 Wetted Per. (ft) 304.23 814.02 Min Ch El (ft) 437.10 Shear (lb /sq ft) 0.38 0.23 Alpha 1.06 Stream Power (lb /ft s) 1.34 0.60 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 341.00 933.20 477.28 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 81.18 129.62 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28720 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1280 460 1281 460 1301 455 1321 450 1372 437.62 1415 437.62 1466 450 1483 455 1495 458 1509 459 1537 459.7 1552 459 1565 455 1576 450 1597 437.5 1609 436.8 1643 450 1657 455 1689 458.6 1711 455 1746 450 1824 448 1992 447.1 2363 447.1 2385 448 2443 449 2473 450 2513 455 2543 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1280 .05 1321 .04 1537 .065 1576 .04 1643 .07 1689 .045 1992 .035 2363 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1280 1689 173 228 338 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.74 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n -Val. 0.042 0.038 E.G. Elev (ft) 451.79 Reach Len. (ft) 173.00 228.00 338.00 Crit W.S. (ft) Flow Area (sq ft) 2062.20 3012.25 E.G. Slope (ft /ft) 0.000169 Area (sq ft) 2062.20 3012.25 Q Total (cfs) 7870.00 Flow (cfs) 3977.38 3892.62 Top Width (ft) 986.79 Top Width (ft) 233.63 753.16 Vel Total (ft /s) 1.55 Avg. Vel. (ft /s) 1.93 1.29 Max Chl Dpth (ft) 14.94 Hydr. Depth (ft) 8.83 4.00 Conv. Total (cfs) 606187.4 Conv. (cfs) 306357.7 299829.7 Length Wtd. (ft) 285.15 Wetted Per. (ft) 243.67 753.47 Min Ch E1 (ft) 436.80 Shear (lb /sq ft) 0.09 0.04 Alpha 1.12 Stream Power (lb /ft s) 0.17 0.05 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 700.37 115.18 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 63.09 62.08 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.37 Element Left OB Channel Right OB Revised Existing Condition HEC-RAS Model - Page 38 Vel Head (ft) 0.08 Wt. n -Val. 0.045 0.039 E.G. Elev (ft) 456.45 Reach Len. (ft) 173.00 228.00 338.00 Crit W.S. (ft) Elev Flow Area (sq ft) 3282.54 6653.17 E.G. Slope (ft /ft) 0.000209 Area (sq ft) 3282.54 6653.17 Q Total (cfs) 22468.00 Flow (cfs) 7439.07 15028.93 Top Width (ft) 1120.15 Top Width (ft) 301.57 818.58 Vel Total (ft /s) 2.26 Avg. Vel. (ft /s) 2.27 2.26 Max Chl Dpth (ft) 19.57 Hydr. Depth (ft) 10.88 8.13 Conv. Total (cfs) 1554898.1 Conv. (cfs) 514821.2 1040076.9 Length Wtd. (ft) 304.43 Wetted Per. (ft) 314.37 819.54 Min Ch E1 (ft) 436.80 Shear (lb /sq ft) 0.14 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 0.24 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 341.00 921.14 452.18 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 80.03 126.01 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28492 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 288 +70 Station Elevation Data num= 27 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1215 460 1216 460 1237 455 1259 450 1309 437.5 1351 437.5 1401 450 1416 455 1424 457 1439 457.4 1465 457 1492 455 1503 450 1518 437.6 1536 436.3 1572 450 1583 455 1605 459.2 1650 455 1714 450 1769 447.1 2352 447.1 2423 448 2512 449 2540 450 2576 455 2599 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1215 .05 1259 .04 1401 .065 1503 .04 1572 .07 1605 .045 1769 .035 2352 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1215 1605 406 324 307 .1 .3 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 451.71 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n -Val. 0.042 0.037 E.G. Elev (ft) 451.74 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) Flow Area (sq ft) 2102.19 3532.20 E.G. Slope (ft /ft) 0.000131 Area (sq ft) 2102.19 3532.20 Q Total (cfs) 7870.00 Flow (cfs) 3584.54 4285.46 Top Width (ft) 1091.33 Top Width (ft) 231.16 860.17 Vel Total (ft /s) 1.40 Avg. Vel. (ft /s) 1.71 1.21 Max Chl Dpth (ft) 15.41 Hydr. Depth (ft) 9.09 4.11 Conv. Total (cfs) 688604.5 Conv. (cfs) 313638.3 374966.2 Length Wtd. (ft) 314.89 Wetted Per. (ft) 242.47 860.46 Revised Existing Condition HEC-RAS Model - Page 39 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 0.07 0.03 Alpha 1.09 Stream Power (lb /ft s) 0.12 0.04 Frctn Loss (ft) 0.04 Cum volume (acre -ft) 198.37 689.47 89.79 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 61.88 55.82 warning - Divided flow computed for this cross - section. Sta Elev Sta Elev Note - Manning's n values were composited to a single value in the main channel. Elev CROSS SECTION OUTPUT Profile #100 -year ultimat 1061 450 1112 437.36 1146 W.S. Elev (ft) 456.32 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 1353 450 1375 0.047 0.037 E.G. Elev (ft) 456.39 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) 2410 449 2436 Flow Area (sq ft) 2468 455 2496 3307.91 7710.77 E.G. Slope (ft /ft) 0.000162 Area (sq ft) 8 3307.91 7710.77 Q Total (cfs) 22468.00 Flow (cfs) Sta n Val Sta 6274.33 16193.67 Top Width (ft) 1251.92 Top Width (ft) 1214 .065 1275 305.65 946.27 Vel Total (ft /s) 2.04 Avg. Vel. (ft /s) 1994 .045 1.90 2.10 Max Chl Dpth (ft) 20.02 Hydr. Depth (ft) Coeff Contr. 10.82 8.15 Conv. Total (cfs) 1766869.8 Conv. (cfs) .1 493409.1 1273460.6 Length Wtd. (ft) 311.80 Wetted Per. (ft) W.S. Elev (ft) 319.79 947.12 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 0.03 0.10 0.08 Alpha 1.01 Stream Power (lb /ft s) 451.70 0.20 0.17 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 341.00 903.89 396.45 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 78.44 119.16 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28168 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1021 460 1041 455 1061 450 1112 437.36 1146 437.36 1197 450 1214 455 1241 459.2 1265 455 1275 450 1293 436.6 1328 438.9 1353 450 1375 455 1419 458.8 1461 455 1525 450 1563 447.1 1994 447.1 2196 448 2410 449 2436 450 2468 455 2496 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1021 .05 1061 .04 1214 .065 1275 .04 1353 .07 1419 .045 1563 .035 1994 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1021 1419 167 176 223 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.67 Element Left OB Channel Vel Head (ft) 0.03 Wt. n -Val. 0.042 E.G. Elev (ft) 451.70 Reach Len. (ft) 167.00 176.00 Crit W.S. (ft) Flow Area (sq ft) 2138.38 E.G. Slope (ft /ft) 0.000135 Area (sq ft) 2138.38 Q Total (cfs) 7870.00 Flow (cfs) 3718.45 Top Width (ft) 1180.01 Top Width (ft) 237.00 Vel Total (ft /s) 1.35 Avg. Vel. (ft /s) 1.74 Max Chl Dpth (ft) 15.07 Hydr. Depth (ft) 9.02 Conv. Total (cfs) 677062.8 Conv. (cfs) 319901.1 Length Wtd. (ft) 194.94 Wetted Per. (ft) 247.98 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.07 Alpha 1.15 Stream Power (lb /ft s) 0.13 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 198.37 673.70 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 60.14 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. Right OB 0.039 223.00 3679.06 3679.06 4151.55 943.00 1.13 3.90 357161.7 943.33 0.03 0.04 64.38 49.46 Revised Existing Condition HEC -RAS Model - Page 40 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.28 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.047 0.039 E.G. Elev (ft) 456.34 Reach Len. (ft) 167.00 176.00 223.00 Crit W.S. (ft) Flow Area (sq ft) 3389.32 8229.46 E.G. Slope (ft /ft) 0.000160 Area (sq ft) 3389.32 8229.46 Q Total (cfs) 22468.00 Flow (cfs) 6410.73 16057.27 Top Width (ft) 1346.71 Top Width (ft) 318.43 1028.28 Vel Total (ft /s) 1.93 Avg. Vel. (ft /s) 1.89 1.95 Max Chl Dpth (ft) 19.68 Hydr. Depth (ft) 10.64 8.00 Conv. Total (cfs) 1774752.0 Conv. (cfs) 506384.7 1268367.4 Length Wtd. (ft) 206.53 Wetted Per. (ft) 331.88 1029.17 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.10 0.08 Alpha 1.00 Stream Power (lb /ft s) 0.19 0.16 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 341.00 878.99 340.28 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 76.12 112.20 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27992 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1041 460 1061 455 1081 450 1132 437.28 1173 437.28 1224 450 1243 455 1265 459 1302 459.7 1339 459.7 1362 459 1375 455 1391 450 1410 436 1452 435.6 1482 450 1508 455 1528 458 1543 458.6 1558 458 1572 455 1607 450 1624 449 1977 448.5 2229 449 2527 450 2561 451 2587 455 2617 460 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1041 .05 1081 .04 1224 .065 1391 .04 1482 .07 1607 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1041 1543 213 244 309 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.60 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.043 0.045 E.G. Elev (ft) 451.66 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) Flow Area (sq ft) 2511.56 2436.21 E.G. Slope (ft /ft) 0.000216 Area (sq ft) 2511.56 2436.21 Q Total (cfs) 7870.00 Flow (cfs) 5678.28 2191.72 Top Width (ft) 1229.11 Top Width (ft) 259.97 969.14 Vel Total (ft /s) 1.59 Avg. Vel. (ft /s) 2.26 0.90 Max Chl Dpth (ft) 16.00 Hydr. Depth (ft) 9.66 2.51 Conv. Total (cfs) 535448.4 Conv. (cfs) 386331.3 149117.0 Length Wtd. (ft) 255.27 Wetted Per. (ft) 271.78 969.35 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.12 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.28 0.03 Frctn Loss (ft) 0.08 Cum Volume (acre -ft) 198.37 664.30 48.73 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 59.13 44.57 Warning - Divided flow computed for this cross- section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.23 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n -Val. 0.048 0.045 Revised Existing Condition HEC -RAS Model - Page 41 E.G. Elev (ft) 456.29 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) 2135.19 Flow Area (sq ft) 3888.99 7058.86 E.G. Slope (ft /ft) 0.000242 Area (sq ft) 3888.99 7058.86 Q Total (cfs) 22468.00 Flow (cfs) 9336.22 13131.78 Top Width (ft) 1366.89 Top Width (ft) 338.81 1028.08 Vel Total (ft /s) 2.05 Avg. Vel. (ft /s) 2.40 1.86 Max Chl Dpth (ft) 20.63 Hydr. Depth (ft) 11.48 6.87 Conv. Total (cfs) 1443739.6 Conv. (cfs) 599922.8 843816.8 Length Wtd. (ft) 281.02 Wetted Per. (ft) 352.85 1029.02 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.17 0.10 Alpha 1.05 Stream Power (lb /ft s) 0.40 0.19 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 864.28 301.15 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 74.79 106.94 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27748 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 280 +80 Station Elevation Data num= 29 324.00 299.00 262.00 2135.19 837.27 2135.19 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1071 460 1091 455 1109 450 1160 437.18 1202 437.18 1253 450 1275 455 1286 458 1371 458 1426 459 1441 459.2 1499 455 1516 450 1538 435.2 1557 435.3 1583 450 1594 455 1606 456.5 1616 455 1642 451 1697 450 1859 450 1957 450.2 2096 450.2 2338 451 2700 451.4 2747 452 2765 455 2789 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1071 .05 1109 .04 1253 .065 1516 .04 1583 .07 1616 .045 Bank Sta: Left Right 1071 1606 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Lengths: Left Channel Right 324 299 262 Profile #2 -year ultimate 451.40 Element 0.17 Wt. n -Val. 451.57 Reach Len. (ft) Flow Area (sq ft) 0.000519 Area (sq ft) 7870.00 Flow (cfs) 1290.66 Top Width (ft) 2.65 Avg. Vel. (ft /s) 16.20 Hydr. Depth (ft) 345592.7 Conv. (cfs) 296.36 Wetted Per. (ft) 435.20 Shear (lb /sq ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.042 0.045 324.00 299.00 262.00 2135.19 837.27 2135.19 837.27 7332.25 537.75 230.04 1060.62 3.43 0.64 9.28 0.79 321978.4 23614.2 242.45 1060.66 0.29 0.03 Revised Existing Condition HEC -RAS Model - Page 42 Alpha 1.57 Stream Power (lb /ft s) 0.98 0.02 Frctn Loss (ft) 0.15 Cum Volume (acre -ft) 198.37 651.29 37.12 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 57.76 37.37 Warning - Divided flow computed for this cross - section. Description: Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile 4100 -year ultimat Station Elevation Data num= 29 W.S. Elev (ft) 456.11 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. Sta 0.048 0.045 E.G. Elev (ft) 456.21 Reach Len. (ft) 324.00 299.00 262.00 Crit W.S. (ft) Flow Area (sq ft) 1220 3379.19 6162.33 E.G. Slope (ft /ft) 0.000404 Area (sq ft) 3379.19 6162.33 Q Total (cfs) 22468.00 Flow (cfs) 1470 10005.46 12462.54 Top Width (ft) 1474.77 Top Width (ft) 1521 455 1534 311.71 1163.06 Vel Total (ft /s) 2.35 Avg. Vel. (ft /s) 1645 2.96 2.02 Max Chl Dpth (ft) 20.91 Hydr. Depth (ft) 10.84 5.30 Conv. Total (cfs) 1118119.1 Conv. (cfs) 497921.2 620197.9 Length Wtd. (ft) 278.21 Wetted Per. (ft) 6 326.71 1163.80 Min Ch E1 (ft) 435.20 Shear (lb /sq ft) Sta 0.26 0.13 Alpha 1.11 Stream Power (lb /ft s) 0.77 0.27 Frctn Loss (ft)- 0.11 Cum Volume (acre -ft) 341.00 843.93 254.26 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 72.97 99.17 warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27449 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1014 460.3 1035 455 1054 450 1104 437.04 1149 437.04 1199 450 1220 455 1245 456 1280 457.6 1322 455 1354 455 1368 456.4 1413 455 1427 450 1470 435.6 1485 435.7 1499 450 1521 455 1534 457.5 1545 455 1574 451 1645 451 1843 450 2018 449.8 2182 450 2472 451 2707 452 2734 455 2761 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1014 .05 1054 .04 1413 .065 1427 .04 1499 .07 1574 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1014 1534 240 284 248 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.25 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.041 0.045 E.G. Elev (ft) 451.42 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) Flow Area (sq ft) 2139.38 849.41 E.G. Slope (ft /ft) 0.000510 Area (sq ft) 2139.38 849.41 Q Total (cfs) 7870.00 Flow (cfs) 7285.05 584.95 Top Width (ft) 1194.68 Top Width (ft) 236.01 958.67 Vel Total (ft /s) 2.63 Avg. Vel. (ft /s) 3.41 0.69 Max Chl Dpth (ft) 15.65 Hydr. Depth (ft) 9.06 0.89 Conv. Total (cfs) 348414.4 Conv. (cfs) 322518.1 25896.4 Length Wtd. (ft) 276.80 Wetted Per. (ft) 248.34 958.70 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.27 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.93 0.02 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 636.62 32.05 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 56.16 31.30 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. Revised Existing Condition HEC -RAS Model - Page 43 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.00 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.044 0.045 E.G. Elev (ft) 456.09 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) Flow Area (sq ft) 3503.64 6328.10 E.G. Slope (ft /ft) 0.000407 Area (sq ft) 3503.64 6328.10 Q Total (cfs) 22468.00 Flow (cfs) 9687.75 12780.25 Top Width (ft) 1617.91 Top Width (ft) 417.73 1200.18 Vel Total (ft /s) 2.29 Avg. Vel. (ft /s) 2.77 2.02 Max Chl Dpth (ft) 20.40 Hydr. Depth (ft) 8.39 5.27 Conv. Total (cfs) 1113651.3 Conv. (cfs) 480184.2 633467.1 Length Wtd. (ft) 261.43 Wetted Per. (ft) 432.39 1200.82 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.21 0.13 Alpha 1.08 Stream Power (lb /ft s) 0.57 0.27 Frctn Loss (ft) 0.10 Cum Volume (acre -ft) 341.00 820.30 216.69 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 70.46 92.06 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27165 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 985 461.5 1011 455 1038 450 1090 436.9 1137 436.1 1189 450 1218 455 1239 458 1270 458.5 1308 459 1340 459 1381 458 1403 455 1429 451.5 1553 450.3 1606 450 1747 449 1855 448.3 2063 448.3 2198 449 2435 449 2460 450 2607 455 2658 459 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 985 .05 1038 .04 1189 .07 1553 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 985 1308 240 284 201 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.13 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 451.27 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) Flow Area (sq ft) 1514.35 2073.39 E.G. Slope (ft /ft) 0.000514 Area (sq ft) 1514.35 2073.39 Q Total (cfs) 7870.00 Flow (cfs) 5305.31 2564.69 Top Width (ft) 1189.70 Top Width (ft) 163.66 1026.04 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 3.50 1.24 Max Chl Dpth (ft) 15.03 Hydr. Depth (ft) 9.25 2.02 Conv. Total (cfs) 347076.8 Conv. (cfs) 233970.8 113106.0 Length Wtd. (ft) 270.48 Wetted Per. (ft) 167.32 1026.09 Min Ch E1 (ft) 436.10 Shear (lb /sq ft) 0.29 0.06 Alpha 1.82 Stream Power (lb /ft s) 1.02 0.08 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 624.71 23.73 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 54.86 25.65 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.91 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.047 0.046 E.G. Elev (ft) 455.99 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) Flow Area (sq ft) 2423.42 7548.40 E.G. Slope (ft /ft) 0.000350 Area (sq ft) 2423.42 7548.40 Q Total (cfs) 22468.00 Flow (cfs) 7081.60 15386.40 Revised Existing Condition HEC -RAS Model - Page 44 Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) 1439.14 2.25 19.81 1201199.8 252.74 436.10 1.09 0.15 0.03 Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) 216.96 1222.18 2.92 2.04 11.17 6.18 378601.4 822598.3 221.48 1222.63 0.24 0.13 0.70 0.27 341.00 800.98 177.19 62.57 68.40 85.16 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26880 INPUT Description: AHH CROSS SECTION - 16 APRIL '92 NOTE: SECTIONS 268 +80 THRU 313 +35 FROM TOPOGRAPHY OF COPPELL COMMUNITY PARK FLOWN FEBRUARY 1992. Station Elevation Data num= 35 Sta Elev Sta Elev Sta Elev 1012 461.5 1038 455 1060 450 1241 450 1265 455 1276 457 1371 458 1407 455 1444 450 1521 450 1530 455 1585 457.5 1708 455.4 1767 455.3 1820 455 2133 454 2214 454.1 2300 454 2423 454.2 2481 454 2634 454 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val 1012 .05 1060 .04 1241 .065 1634 .045 Bank Sta: Left 1012 CROSS SECTION OU W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Sta Elev 1113 436.76 1286 458 1468 436.2 1634 457 1889 454 2327 453.8 2683 455 Sta Elev 1188 436.76 1304 458.7 1488 436.4 1666 456 2084 453.8 2342 454 2761 459 Sta n Val Sta n Val 1444 .04 1521 .07 Right Lengths: Left Channel Right 1585 32 50 479 TPUT Profile #2 -year ultimate 451.01 Element 0.14 Wt. n -Val. 451.15 Reach Len. (ft) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.042 32.00 50.00 479.00 Revised Existing Condition HEC -RAS Model - Page 45 Crit W.S. (ft) Data Flow Area (sq ft) 42 2628.84 E.G. Slope (ft /ft) 0.000367 Area (sq ft) Sta 2628.84 Sta Q Total (cfs) 7870.00 Flow (cfs) Sta 7870.00 Sta Top Width (ft) 276.59 Top Width (ft) 600 276.59 700 Vel Total (ft /s) 2.99 Avg. Vel. (ft /s) 900 2.99 1000 Max Chl Dpth (ft) 14.81 Hydr. Depth (ft) 1200 9.50 1300 Conv. Total (cfs) 410777.7 Conv. (cfs) 1500 410777.7 1600 Length Wtd. (ft) 50.00 Wetted Per. (ft) 1800 286.78 1900 Min Ch E1 (ft) 436.20 Shear (lb /sq ft) 2100 0.21 2200 Alpha 1.00 Stream Power (lb /ft s) 2400 0.63 2500 Frctn Loss (ft) 0.02 Cum Volume (acre -ft) 198.37 611.20 18.94 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 53.42 23.28 Warning - Divided flow computed for this cross - section. 3005 448.7 3027 Note - Manning's n values were composited to a single value in the main channel. 452 CROSS SECTION OUTPUT Profile #100 -year ultimat 452 3290 452 W.S. Elev (ft) 455.42 Element Left OB Channel Right OB Vel Head (ft) 0.39 Wt. n -Val. 460 0.047 0.045 E.G. Elev (ft) 455.81 Reach Len. (ft) 32.00 50.00 479.00 Crit W.S. (ft) Flow Area (sq ft) n Values 4029.76 1193.54 E.G. Slope (ft /ft) 0.001179 Area (sq ft) 4029.76 1193.54 Q Total (cfs) 22468.00 Flow (cfs) n Val 20929.79 1538.21 Top Width (ft) 1352.94 Top Width (ft) n Val 368.29 984.64 Vel Total (ft /s) 4.30 Avg. Vel. (ft /s) .055 5.19 1.29 Max Chl Dpth (ft) 19.22 Hydr. Depth (ft) 10.94 1.21 Conv. Total (cfs) 654429.7 Conv. (cfs) 609625.8 44803.9 Length Wtd. (ft) 103.71 Wetted Per. (ft) 380.76 984.67 Min Ch E1 (ft) 436.20 Shear (lb /sq ft) 0.78 0.09 Alpha 1.36 Stream Power (lb /ft s) 4.04 0.11 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 779.94 157.02 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 66.49 80.07 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26830 INPUT Description: * * * ** SECTION "B" * * * ** FROM KIMLEY -HORN MODEL. -- Normal Pool Elev. set =445.5 Station Elevation Data num= 42 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 550 464.9 600 461.9 700 459.1 800 455.9 900 452.9 1000 451.7 1100 451.3 1200 451.2 1300 450.9 1400 451.1 1500 452.8 1600 452.8 1700 452.4 1800 453.2 1900 453.1 2000 453.3 2100 454.2 2200 454.4 2300 455.3 2400 456 2500 455.9 2600 457.6 2619.58 457.35 2702 436.74 2738 436.74 2818.65 456.91 2900 457.8 3000 451.6 3005 448.7 3027 436.3 3062 436.5 3100 452 3200 454 3230 452 3290 452 3500 452 3650 452 3920 452 4000 456.3 4250 460 5100 461.9 5200 465 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 550 .055 2619.58 .035 2818.65 .055 2900 .035 3100 .055 Revised Existing Condition HEGRAS Model - Page 46 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2619.58 3100 1030 1050 960 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 550 2619.58 470 5200 5200 470 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 450.94 Element Left OB Channel Right OB Vel Head (ft) 0.19 Wt. n -Val. 1500 0.035 0.055 E.G. Elev (ft) 451.13 Reach Len. (ft) 1030.00 1050.00 960.00 Crit W.S. (ft) 456 Flow Area (sq ft) 2940 2272.14 2733.14 E.G. Slope (ft /ft) 0.000362 Area (sq ft) 3145 2272.14 2733.14 Q Total (cfs) 7870.00 Flow (cfs) 3300 7870.00 4088.07 Top Width (ft) 245.83 Top Width (ft) 3490 245.83 882.57 Vel Total (ft /s) 3.46 Avg. Vel. (ft /s) 2660 3.46 1.50 Max Chl Dpth (ft) 14.64 Hydr. Depth (ft) 470 9.24 3.10 Conv. Total (cfs) 413802.5 Conv. (cfs) 2990 413802.5 156859.6 Length Wtd. (ft) 1050.00 Wetted Per. (ft) 470 256.02 882.75 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 470 0.20 0.13 Alpha 1.00 Stream Power (lb /ft s) 3210 0.69 0.20 Frctn Loss (ft) 0.24 Cum Volume (acre -ft) 198.37 608.39 18.94 C & E Loss (ft)- 0.02 Cum SA (acres) 57.13 53.12 23.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.36 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 1500 0.035 0.055 E.G. Elev (ft) 455.71 Reach Len. (ft) 1030.00 1050.00 960.00 Crit W.S. (ft) 456 Flow Area (sq ft) 2940 3566.62 2733.14 E.G. Slope (ft /ft) 0.000679 Area (sq ft) 3145 3566.62 2733.14 Q Total (cfs) 22468.00 Flow (cfs) 3300 18379.93 4088.07 Top Width (ft) 1228.21 Top Width (ft) 3490 345.64 882.57 Vel Total (ft /s) 3.57 Avg. Vel. (ft /s) 2660 5.15 1.50 Max Chl Dpth (ft) 19.06 Hydr. Depth (ft) 470 10.32 3.10 Conv. Total (cfs) 862098.8 Conv. (cfs) 2990 705239.2 156859.6 Length Wtd. (ft) 1041.80 Wetted Per. (ft) 470 357.42 882.75 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 470 0.42 0.13 Alpha 1.74 Stream Power (lb /ft s) 3210 2.18 0.20 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 341.00 775.59 135.43 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 66.08 69.81 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 25770 INPUT Description: Station Elevation Data Sta Elev Sta 500 469.5 600 1000 449.9 1100 1500 451 1600 2000 453.1 2100 2495.2 455.33 2570 2780 456 2845 2940 456.8 2940 3010 470 3060 3145 470 3145 3210 457.6 3230 3300 457.8 3300 3370 470 3420 3490 470 3490 3540 457.1 3555 num= 70 Elev Sta Elev Sta Elev Sta Elev 460.5 700 455.6 800 452.9 900 450.4 451.1 1200 450.6 1300 451.3 1400 450.8 451.4 1700 451.6 1800 451.5 1900 452.7 453.4 2200 454.2 2300 454.3 2400 455 436.73 2650 436.73 2660 434.6 2710 434.6 456.8 2845 470 2920 470 2920 456.8 470 2990 470 2990 456.8 3010 456.8 470 3060 456.8 3095 457.2 3095 470 457.2 3165 457.6 3165 470 3210 470 457.8 3230 470 3280 470 3280 457.8 470 3350 470 3350 457.8 3370 457.7 470 3420 457.7 3440 457.3 3440 470 457.3 3510 457.1 3510 470 3540 470 456 3590 456 3600 459.6 4360 470 Revised Existing Condition HEC -RAS Model - Page 47 Manning's n Values num= 3 num= 90 Sta n Val Sta n Val Sta n Val Sta Elev 500 .055 2495.2 .035 2780 .065 Elev Sta Elev Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 460.5 2495.2 2780 455.6 240 240 240 .1 .3 450.4 Blocked Obstructions num= 2 451.1 1200 450.6 Sta L Sta R Elev Sta L Sta R Elev 1400 450.8 1500 500 2494 470 2780 4360 470 1700 451.6 1800 CROSS SECTION OUTPUT Profile #2 -year ultimate 1900 452.7 2000 W.S. Elev (ft) 450.75 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.035 E.G. Elev (ft) 450.86 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 2901.81 E.G. Slope (ft /ft) 0.000158 Area (sq ft) 2901.81 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 249.21 Top Width (ft) 249.21 Vel Total (ft /s) 2.71 Avg. Vel. (ft /s) 2.71 Max Chl Dpth (ft) 16.15 Hydr. Depth (ft) 11.64 Conv. Total (cfs) 625627.1 Conv. (cfs) 625627.1 Length Wtd. (ft) 240.00 Wetted Per. (ft) 253.56 Min Ch E1 (ft)- 434.60 Shear (lb /sq ft) 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 198.37 546.03 18.94 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 47.16 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.53 Element Left OB Channel Right OB Vel Head (ft) 0.52 Wt. n -Val. 0.035 E.G. Elev (ft) 455.05 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 3897.10 E.G. Slope (ft /ft) 0.000557 Area (sq ft) 3897.10 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 276.81 Top Width (ft) 276.81 Vel Total (ft /s) 5.77 Avg. Vel. (ft /s) 5.77 Max Chl Dpth (ft) 19.93 Hydr. Depth (ft) 14.08 Conv. Total (cfs) 952361.4 Conv. (cfs) 952361.4 Length Wtd. (ft) 240.00 Wetted Per. (ft) 282.19 Min Ch E1 (ft) 434.60 Shear (lb /sq ft) 0.48 Alpha 1.00 Stream Power (lb /ft s) 2.77 Frctn Loss (ft) 0.17 Cum Volume (acre -ft) 341.00 685.63 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 58.58 60.08 CROSS SECTION REACH: Reach -1 INPUT Description: RIVER: RIVER -1 RS: 25530 FROM KIMLEY -HORN MODEL. CHANNEL DISTANCE REVISED. Station Elevation Data num= 90 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 469.5 600 460.5 700 455.6 800 452.9 900 450.4 1000 449.9 1100 451.1 1200 450.6 1300 451.3 1400 450.8 1500 451 1600 451.4 1700 451.6 1800 451.5 1900 452.7 2000 453.1 2100 453.4 2200 454.2 2300 454.3 2400 455 Revised Existing Condition HEC -RAS Model - Page 48 2495.2 455.33 2570 436.63 2627.2 436.63 2630 434.5 2670 434.4 0.80 2742.67 454.8 2780 453.5 2820 454 2820 470 2880 470 700.00 2880 455 2905 454.7 2935 454.7 2965 455.3 2965 470 0.000962 3020 470 3020 456.5 3030 456.5 3030 470 3090 470 22468.00 3090 456.8 3100 456.8 3100 470 3160 470 3160 456.8 7.19 3170 456.9 3170 470 3240 470 3240 457.8 3250 457.8 13.04 3250 470 3315 470 3315 457.9 3325 457.9 3325 470 700.00 3385 470 3385 457.8 3395 457.8 3395 470 3455 470 0.77 3455 458.1 3465 458.1 3465 470 3525 470 3525 457.2 0.47 3540 457.2 3540 470 3590 470 3590 457 3620 455.9 57.15 3650 455.9 3680 456.9 3680 470 3750 470 3750 457.6 3765 457.6 3765 470 3825 470 3825 458 3840 458 3840 470 3905 470 3905 458.4 3920 458.4 3920 470 3980 470 3980 458.7 4000 458.7 4000 470 4600 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .055 2495.2 .035 2742.67 .065 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2495.2 2742.67 700 700 560 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 500 2494• 470 2742.67 4600 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.64 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.035 E.G. Elev (ft) 450.81 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 2352.78 E.G. Slope (ft /ft) 0.000261 Area (sq ft) 2352.78 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 213.87 Top Width (ft) 213.87 Vel Total (ft /s) 3.34 Avg. Vel. (ft /s) 3.34 Max Chl Dpth (ft) 16.24 Hydr. Depth (ft) 11.00 Conv. Total (cfs) 487009.9 Conv. (cfs) 487009.9 Length Wtd. (ft) 700.00 Wetted Per. (ft) 218.54 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.18 Alpha 1.00 Stream Power (lb /ft s) 0.59 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 531.55 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 45.88 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.05 Element Left OB Channel Right OB Vel Head (ft) 0.80 Wt. n -Val. 0.035 E.G. Elev (ft) 454.85 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 3126.24 E.G. Slope (ft /ft) 0.000962 Area (sq ft) 3126.24 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 239.66 Top Width (ft) 239.66 Vel Total (ft /s) 7.19 Avg. Vel. (ft /s) 7.19 Max Chl Dpth (ft) 19.65 Hydr. Depth (ft) 13.04 Conv. Total (cfs) 724299.7 Conv. (cfs) 724299.7 Length Wtd. (ft) 700.00 Wetted Per. (ft) 245.23 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.77 Alpha 1.00 Stream Power (lb /ft s) 5.50 Frctn Loss (ft) 0.47 Cum Volume (acre -ft) 341.00 666.28 105.32 C & E Loss (ft) 0.14 Cum SA (acres) 62.57 57.15 60.08 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24700 INPUT Description: * * * * * * * * ** KH- PARCHE MODEL COORDINATION 24700 - 39440 CROSS SECTION 24700 IS FROM THE KIMLEY -HORN MODEL. Revised Existing Condition HEC-RAS Model - Page 49 * * * ** SECTION "A" * * * ** Station Elevation Data num= 53 Sta Elev Sta Elev Sta Elev 1000 465 1120 462 1140 462 1410 457 1550 455 1650 454 2180 451 2260 450 2630 451 3180 452 3340 452 3530 452 4110 453 4188.16 453 4260 435.04 4450 454 4480 455 4510 455 4850 455 5000 451 5060 451 5170 440• 5200 456 5260 456.3 5630 457 5800 458.4 5900 459 6140 459.9 6360 459 6410 458.5 6580 459.2 6670 460 6690 462 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val 1000 .055 4188.16 .035 4424.38 .055 Bank Sta: Left Right Lengths: Left Channel 5060 5200 610 350 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4187 470 5200 6690 470 Sta Elev Sta 1230 460 1300 1870 453 2080 2910 451 2980 3800 453 4000 4350 435.04 4424.38 4780 454 4800 5140 440 5155 5300 456.6 5400 5970 459.4 6050 6480 458.3 6500 Sta n Val Sta 5060 .035 5200 Right Coeff Contr. 80 .1 Elev 460 452 451 453 453.63 454 433.9 456.9 459.7 458.7 n Val .055 Expan. .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.55 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.035 0.035 454.24 E.G. Elev (ft) 450.65 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) 1361.24 Flow Area (sq ft) 2359.19 917.63 3452.63 E.G. Slope (ft /ft) 0.000155 Area (sq ft) 2359.19 917.63 5817.17 Q Total (cfs) 7870.00 Flow (cfs) 6105.03 1764.97 Vel Total (ft /s) Top Width (ft) 340.68 Top Width (ft) 214.13 126.55 20.00 Vel Total (ft /s) 2.40 Avg. Vel. (ft /s) 2.59 1.92 Conv. (cfs) Max Chl Dpth (ft) 16.65 Hydr. Depth (ft) 11.02 7.25 Conv. Total (cfs) 631800.3 Conv. (cfs) 490109.0 141691.3 Length Wtd. (ft) 450.84 Wetted Per. (ft) 217.95 132.29 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.10 0.07 Alpha 1.04 Stream Power (lb /ft s) 0.27 0.13 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 179.42 505.28 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 55.40 43.14 23.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 453.90 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.035 0.035 E.G. Elev (ft) 454.24 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) Flow Area (sq ft) 3452.63 1361.24 E.G. Slope (ft /ft) 0.000501 Area (sq ft) 3452.63 1361.24 Q Total (cfs) 22468.00 Flow (cfs) 16650.83 5817.17 Top Width (ft) 560.57 Top Width (ft) 424.51 136.06 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 4.82 4.27 Max Chl Dpth (ft) 20.00 Hydr. Depth (ft) 8.13 10.00 Conv. Total (cfs) 1004106.4 Conv. (cfs) 744133.9 259972.5 Revised Existing Condition HEC -RAS Model - Page 50 Length Wtd. (ft) 446.34 Wetted Per. (ft) 429.95 142.67 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.25 0.30 Alpha Sta 1.01 Stream Power (lb /ft s) 1.21 1.27 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 313.26 630.23 105.32 C & E Loss (ft) 0.07 Cum SA (acres) 59.16 54.13 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24400 INPUT Description: Approximate Location of MacArthur Crossing - -Not included in this hydraulic model. Station Elevation Data num= 43 n Val Sta 1000 .055 5260 .035 5510 .055 6340 .035 6940 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465 1040 460 1090 457.5 1140 459.5 1200 452 1240 452 1270 457 1340 452 1540 450.5 1700 450 1940 450 2200 449 2790 450 3250 450 3340 451 3870 452 4090 451 5000 451 5220 452 5240 459.5 5260 459.2 5280 452.3 5310 452 5365 433.5 5445 433.5 5510 451.5 5600 453 5950 456.5 6340 453 6490 446 6640 431.5 6820 452 6940 456 7120 457.8 7430 459 7670 459.9 9020 458 9240 457.5 9440 458 9940 458.5 11240 457 12240 457.5 12560 458 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta 1000 .055 5260 .035 5510 .055 6340 .035 6940 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. 5260 6940 130 550 230 .1 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5260 470 6940 12560 470 18.94 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.57 Element Left OB Vel Head (ft) 0.03 Wt. n -Val. E.G. Elev (ft) 450.59 Reach Len. (ft) 130.00 Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000047 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 607.59 Top Width (ft) Vel Total (ft /s) 1.33 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.07 Hydr. Depth (ft) Conv. Total (cfs) 1150991.9 Conv. (cfs) Length Wtd. (ft) 382.15 Wetted Per. (ft) Min Ch E1 (ft) 431.50 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 162.90 C & E Loss (ft) 0.01 Cum SA (acres) 53.91 n Val .055 Expan. .3 Channel Right OB 0.035 550.00 230.00 5915.40 5915.40 7870.00 607.59 1.33 9.74 1150991.9 614.59 0.03 0.04 477.83 18.94 40.20 23.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 453.94 Element Left OB Channel Right OB Revised Existing Condition HEC-RAS Model - Page 51 Vel Head (ft) 0.11 Wt. n -Val. 0.035 E.G. Elev (ft) 454.05 Reach Len. (ft) 130.00 550.00 230.00 Crit W.S. (ft) 0.035 Flow Area (sq ft) 8489.44 E.G. Slope (ft /ft) 0.000173 Area (sq ft) 8489.44 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 1060.99 Top Width (ft) 1060.99 Vel Total (ft /s) 2.65 Avg. Vel. (ft /s) 2.65 Max Chl Dpth (ft) 22.44 Hydr. Depth (ft) 8.00 Conv. Total (cfs) 1707544.8 Conv. (cfs) 1707544.8 Length Wtd. (ft) 375.80 Wetted Per. (ft) 1068.82 Min Ch E1 (ft) 431.50 Shear (lb /sq ft) 0.09 Alpha 1.00 Stream Power (lb /ft s) 0.23 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 289.08 590.65 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 56.19 49.33 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 23800 INPUT Description: Station Elevation Data num= 52 Sta Elev Sta Elev Sta Elev 1000 465 1110 460 1190 457 1480 455 1590 454 1740 453 2110 450 2820 449 2850 449 3350 450 3410 450 3440 451 4140 451 4190 450.4 4240 451 5280 451 5380 451 5468.04 451.42 5694.28 452 5820 454 5940 454 6390 454 6410 455 6510 455 6640 440 6660 433.3 6680 440 7070 453 7239 454 7240 454 7470 460 7550 470 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val 1000 .055 5468.04 .035 5694.28 .055 Bank Sta: Left Right Lengths: Left Channel 6610 7000 720 1430 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5467 470 7550 7550 470 Sta Elev Sta Elev 1280 456 1340 455 1860 452 1950 451 3280 450 3300 450 3540 451 3630 451 4380 451 4900 450.6 5535 434.68 5625 434.68 5970 455 6310 455 6610 450 6620 450 6700 450 7000 454 7280 450 7350 455 Sta n Val Sta n Val 6610 .035 7000 .055 Right Coeff Contr. Expan. 680 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.47 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 450.56 Reach Len. (ft) 720.00 1430.00 680.00 Crit W.S. (ft) Flow Area (sq ft) 2420.32 784.43 2.64 E.G. Slope (ft /ft) 0.000145 Area (sq ft) 2420.32 784.43 2.64 Q Total (cfs) 7432.00 Flow (cfs) 6114.91 1316.77 0.33 Top Width (ft) 362.09 Top Width (ft) 225.68 125.16 11.25 Vel Total (ft /s) 2.32 Avg. Vel. (ft /s) 2.53 1.68 0.12 Max Chl Dpth (ft) 17.17 Hydr. Depth (ft) 10.72 6.27 0.23 Conv. Total (cfs) 616480.2 Conv. (cfs) 507228.2 109225.0 27.0 Length Wtd. (ft) 1137.90 Wetted Per. (ft) 229.58 132.07 11.29 Min Ch E1 (ft) 433.30 Shear (lb /sq ft) 0.10 0.05 0.00 Alpha 1.07 Stream Power (lb /ft s) 0.24 0.09 0.00 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 159.29 435.53 18.93 C & E Loss (ft) 0.01 Cum SA (acres) 53.57 35.57 23.25 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat Revised Existing Condition HEC -RAS Model - Page 52 W.S. Elev (ft) 453.46 Element Left OB Channel Right OB Vel Head (ft) 0.44 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 453.90 Reach Len. (ft) 720.00 1430.00 680.00 Crit W.S. (ft) 449 Flow Area (sq ft) 3278.65 1495.63 169.66 E.G. Slope (ft /ft) 0.000633 Area (sq ft) 3278.65 1495.63 169.66 Q Total (cfs) 23083.00 Flow (cfs) 18780.81 4154.78 147.41 Top Width (ft) 932.30 Top Width (ft) 388.56 349.78 193.96 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 5.73 2.78 0.87 Max Chl Dpth (ft) 20.16 Hydr. Depth (ft) 8.44 4.28 0.87 Conv. Total (cfs) 917287.8 Conv. (cfs) 746324.5 165105.3 5858.0 Length Wtd. (ft) 1137.86 Wetted Per. (ft) 394.90 356.71 194.26 Min Ch E1 (ft) 433.30 Shear (lb /sq ft) 0.33 0.17 0.03 Alpha 1.29 Stream Power (lb /ft s) 1.88 0.46 0.03 Frctn Loss (ft) 0.56 Cum Volume (acre -ft) 284.19 527.61 104.87 C & E Loss (ft) 0.02 Cum SA (acres) 55.61 40.42 59.57 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 22370 INPUT Description: IMPORTED FROM DOWDY MODEL 89123PM.DAT - 05/21/92 Station Elevation Data num= 28 5 Sta n Val Sta n Val Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1300 449 1750 449 1950 448 2950 450 3670 450 4010 449 4070 448 4970 450.5 5094 450.5 5160 434.04 5220 434.04 5320 432.5 5345 435 5360 445 5380 446 5460 454.5 5870 454 6310 452.5 6480 452 6610 457 6630 459.5 6780 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta 1000 .05 1300 .06 5094 .035 5460 Bank Sta: Left Right Lengths: Left Channel Right 5094 5460 800 800 400 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5094 470 6780 6780 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.38 Element Vel Head (ft) 0.06 Wt. n -Val. E.G. Elev (ft) 450.44 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000069 Area (sq ft) Q Total (cfs) 7432.00 Flow (cfs) Top Width (ft) 301.87 Top Width (ft) Vel Total (ft /s) 1.91 Avg. Vel. (ft /s) Max Chl Dpth (ft) 17.88 Hydr. Depth (ft) Conv. Total (cfs) 894681.1 Conv. (cfs) Length Wtd. (ft) 800.00 Wetted Per. (ft) Min Ch E1 (ft) 432.50 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Sta Elev 2550 448 4370 449.5 5280 434.04 5405 452.7 6550 453.5 n Val Sta n Val .055 6610 .05 Coeff Contr. Expan. .1 .3 Left OB Channel 0.035 800.00 800.00 3885.75 3885.75 7432.00 301.87 1.91 12.87 894681.1 307.66 0.05 0.10 Right OB 400.00 Revised Existing Condition HEC -RAS Model - Page 53 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 139.28 358.87 18.91 C & E Loss (ft) 0.00 Cum SA (acres) 51.70 28.56 23.16 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.95 Element Left OB Channel Right OB Vel Head (ft) 0.38 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 453.33 Reach Len. (ft) 800.00 800.00 400.00 Crit W.S. (ft) Flow Area (sq ft) 4675.59 169.88 E.G. Slope (ft /ft) 0.000388 Area (sq ft) 4675.59 169.88 Q Total (cfs) 23083.00 Flow (cfs) 23026.78 56.22 Top Width (ft) 665.10 Top Width (ft) 318.65 346.45 Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) 4.92 0.33 Max Chl Dpth (ft) 20.45 Hydr. Depth (ft) 14.67 0.49 Conv. Total (cfs) 1171724.9 Conv. (cfs) 1168871.0 2853.8 Length Wtd. (ft) 798.69 Wetted Per. (ft) 327.21 346.46 Min Ch E1 (ft) 432.50 Shear (lb /sq ft) 0.35 0.01 Alpha 1.07 Stream Power (lb /ft s) 1.71 0.00 Frctn Loss (ft) 0.27 Cum Volume (acre -ft) 257.10 426.32 102.22 C & E Loss (ft) 0.02 Cum SA (acres) 52.40 29.45 55.35 Warning - Divided flow computed for this cross- section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 21560 INPUT Description: Station Elevation Data num= 54 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1200 455 1250 454 1290 454 1320 453 1360 452 1450 451 1480 450 1570 449 1800 448 2050 448.2 2500 449 2730 449 3050 448.5 3260 449 3400 449 3520 449.7 3700 450 3800 449 3900 449 3920 450 4170 448 4250 449 4280 450 4340 451 4420 451 4500 452 4820 452 4939.61 452.8 5020 432.7 5100 432.7 5140 432.58 5180 432.46 5200 432.4 5220 438 5270 454 5300 455 5340 455 5360 455 5460 454 5630 453 5780 452 5790 452 5850 451 5870 451 5880 453 5920 453 5970 453 6150 452 6220 452 6270 453 6340 455 6450 460 6540 465 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 4939.61 .035 5300 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4939.61 5300 1600 1450 1150 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4939 470 6540 6540 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.34 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.035 E.G. Elev (ft) 450.39 Reach Len. (ft) 1600.00 1450.00 1150.00 Crit W.S. (ft) Flow Area (sq ft) 4354.30 E.G. Slope (ft /ft) 0.000049 Area (sq ft) 4354.30 Q Total (cfs) 7432.00 Flow (cfs) 7432.00 Top Width (ft) 309.14 Top Width (ft) 309.14 Vel Total (ft /s) 1.71 Avg. Vel. (ft /s) 1.71 Max Chl Dpth (ft) 17.94 Hydr. Depth (ft) 14.09 Conv. Total (cfs) 1066997.1 Conv. (cfs) 1066997.1 Length Wtd. (ft) 1451.78 Wetted Per. (ft) 314.01 Min Ch E1 (ft) 432.40 Shear (lb /sq ft) 0.04 Alpha 1.00 Stream Power (lb /ft s) 0.07 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 139.28 283.21 18.91 C & E Loss (ft) 0.01 Cum SA (acres) 51.70 22.95 23.16 Revised Existing Condition HEC -RAS Model - Page 54 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.73 Element Left OB Channel Right OB Vel Head (ft) 0.31 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 453.04 Reach Len. (ft) 1600.00 1450.00 1150.00 Crit W.S. (ft) Flow Area (sq ft) 5111.20 274.00 E.G. Slope (ft /ft) 0.000293 Area (sq ft) 5111.20 274.00 Q Total (cfs) 23083.00 Flow (cfs) 22988.10 94.90 Top Width (ft) 770.84 Top Width (ft) 326.12 444.73 Vel Total (ft /s) 4.29 Avg. Vel. (ft /s) 4.50 0.35 Max Chl Dpth (ft) 20.33 Hydr. Depth (ft) 15.67 0.62 Conv. Total (cfs) 1349378.4 Conv. (cfs) 1343831.0 5547.3 Length Wtd. (ft) 1451.13 Wetted Per. (ft) 331.65 444.92 Min Ch E1 (ft) 432.40 Shear (lb /sq ft) 0.28 0.01 Alpha 1.10 Stream Power (lb /ft s) 1.27 0.00 Frctn Loss (ft) 0.29 Cum Volume (acre -ft) 257.10 336.45 100.18 C & E Loss (ft) 0.05 Cum SA (acres) 52.40 23.53 51.72 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19930 INPUT Description: Station Elevation Data num= 55 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 454.3 1040 450 1160 448 1190 449 1210 449 1220 448 1320 448 1330 449 1460 450 1520 450 1530 449 1900 447.2 2170 447 2280 446.2 2420 446.4 2540 447 3070 447 3240 446.3 3350 446 3360 445 3370 445 3380 446 3460 447 3750 447.5 4070 447 4090 447 4150 448 4300 448.5 4660 448.5 4960 448.5 5130 448.5 5400 448.5 5600 448.5 5700 448.5 5704 448.5 5770 432 5930 432 5996 448.5 6050 448.5 6070 448.5 6110 437 6130 432 6150 437 6190 453 6220 453 6440 452 6550 451 6650 450 6840 449 6900 449 6920 450 7030 451 7070 452 7130 453 7350 460 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .045 5704 .035 5996 .045 6070 .035 6190 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5704 6190 800 600 550 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5208 470 7350 7350 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Right OB Vel Head (ft) 0.02 Wt. n -Val. 0.045 0.035 0.055 E.G. Elev (ft) 450.33 Reach Len. (ft) 800.00 600.00 550.00 Crit W.S. (ft) Flow Area (sq ft) 894.16 5544.22 256.36 E.G. Slope (ft /ft) 0.000030 Area (sq ft) 894.16 5544.22 256.36 Q Total (cfs) 7432.00 Flow (cfs) 240.60 7159.35 32.05 Top Width (ft) 1308.83 Top Width (ft) 496.00 479.26 333.57 Vel Total (ft /s) 1.11 Avg. Vel. (ft /s) 0.27 1.29 0.13 Max Chl Dpth (ft) 18.30 Hydr. Depth (ft) 1.80 11.57 0.77 Conv. Total (cfs) 1347631.5 Conv. (cfs) 43628.1 1298192.6 5810.7 Length Wtd. (ft) 632.75 Wetted Per. (ft) 497.80 488.73 333.60 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.00 0.02 0.00 Alpha 1.31 Stream Power (lb /ft s) 0.00 0.03 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre -ft) 122.86 118.46 15.53 C & E Loss (ft) 0.00 Cum SA (acres) 42.59 9.83 18.76 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat Revised Existing Condition HEC -RAS Model - Page 55 W.S. Elev (ft) 452.57 Element Left OB Channel Right OB Vel Head (ft) 0.13 Wt. n -Val. 0.045 0.035 0.055 E.G. Elev (ft) 452.69 Reach Len. (ft) 800.00 600.00 550.00 Crit W.S. (ft) 1000 Flow Area (sq ft) 2016.39 6634.98 1495.88 E.G. Slope (ft /ft) 0.000145 Area (sq ft) 2016.39 6634.98 1495.88 Q Total (cfs) 23083.00 Flow (cfs) 2029.29 20308.52 745.20 Top Width (ft) 1769.20 Top Width (ft) 496.00 484.91 788.29 Vel Total (ft /s) 2.27 Avg. Vel. (ft /s) 1.01 3.06 0.50 Max Chl Dpth (ft) 20.57 Hydr. Depth (ft) 4.07 13.68 1.90 Conv. Total (cfs) 1918692.4 Conv. (cfs) 168677.3 1688073.3 61941.9 Length Wtd. (ft) 648.13 Wetted Per. (ft) 500.07 494.82 788.35 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.04 0.12 0.02 Alpha 1.61 Stream Power (lb /ft s) 0.04 0.37 0.01 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 220.06 140.95 76.82 C & E Loss (ft) 0.03 Cum SA (acres) 43.29 10.03 35.44 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19330 INPUT Description: Station Elevation Data num= 61 Channel Right OB Vel Head (ft) 0.01 Wt. n -Val. Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 454 1050 450 1070 448 1750 447.6 2210 447 2410 446 2450 445 2600 443 2670 443 2680 445 2710 445 2860 445 2900 444 2920 443 2960 445 2970 446 3020 446 3040 445 3070 443 3100 447 3250 446.7 3350 447 3500 447 3550 446 3600 444 3650 447 3710 446 3850 446 3940 447 4050 447 4080 446 4160 446 4450 446 4550 445 4700 446 4740 447 4800 447 5010 447.3 5040 448 5280 448 5490 448 5551.8 448 5617 431.7 5777 431.7 5842.2 448 5860 448 5870 445 5880 440 5897 431.7 5915 440 5965 453 5975 453 6205 452 6315 451 6435 450 7035 449 7135 449 7185 450 7915 455 8215 455 8250 460 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .035 5551.8 .035 5965 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5551.8 5965 650 650 650 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4000 470 8250 8250 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Right OB Vel Head (ft) 0.01 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 450.31 Reach Len. (ft) 650.00 650.00 650.00 Crit W.S. (ft) Flow Area (sq ft) 5334.24 5204.38 659.88 E.G. Slope (ft /ft) 0.000019 Area (sq ft) 5334.24 5204.38 659.88 Q Total (cfs) 7432.00 Flow (cfs) 2217.96 5148.11 65.93 Top Width (ft) 2783.74 Top Width (ft) 1551.80 402.81 829.13 Vel Total (ft /s) 0.66 Avg. Vel. (ft /s) 0.42 0.99 0.10 Max Chl Dpth (ft) 18.60 Hydr. Depth (ft) 3.44 12.92 0.80 Conv. Total (cfs) 1725913.6 Conv. (cfs) 515071.7 1195531.4 15310.6 Length Wtd. (ft) 650.00 Wetted Per. (ft) 1555.14 413.50 829.14 Min Ch E1 (ft) 431.70 Shear (lb /sq ft) 0.00 0.01 0.00 Alpha 1.66 Stream Power (lb /ft s) 0.00 0.01 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 65.67 44.43 9.75 C & E Loss (ft) 0.00 Cum SA (acres) 23.79 3.75 11.42 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less Revised Existing Condition HEC-RAS Model - Page 56 than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat Description: W.S. Elev (ft) 452.57 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 452.61 Reach Len. (ft) 650.00 650.00 650.00 Crit W.S. (ft) 1300 Flow Area (sq ft) 8856.62 6128.60 3234.19 E.G. Slope (ft /ft) 0.000064 Area (sq ft) 8856.62 6128.60 3234.19 Q Total (cfs) 23083.00 Flow (cfs) 9560.82 12350.68 1171.51 Top Width (ft) 3448.66 Top Width (ft) 1551.80 411.54 1485.32 Vel Total (ft /s) 1.27 Avg. Vel. (ft /s) 1.08 2.02 0.36 Max Chl Dpth (ft) 20.87 Hydr. Depth (ft) 5.71 14.89 2.18 Conv. Total (cfs) 2892244.8 Conv. (cfs) 1197947.5 1547510.1 146787.0 Length Wtd. (ft) 650.00 Wetted Per. (ft) 1557.41 422.52 1485.35 Min Ch E1 (ft) 431.70 Shear (lb /sq ft) 0.02 0.06 0.01 Alpha 1.66 Stream Power (lb /ft s) 0.02 0.12 0.00 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 120.22 53.05 46.96 C & E Loss (ft) 0.00 Cum SA (acres) 24.49 3.85 21.09 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 18440 INPUT Description: Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1300 448 1800 448 2250 447 2300 445 2330 440 2500 440 2600 445 2750 448 5250 448 5350 450 5460 451 5480 449 5515 446 5525 440 5535 434 5545 431.4 5555 431.4 5560 447 5585 451 5700 450 5850 450 6000 448 6230 450 6500 452 6700 450 6780 447 6780 466 6940 450 7440 460 7650 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .035 5480 .045 5585 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5480 5585 10000 5880 4500 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 3750 470 7650 7650 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.22 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.035 0.045 0.055 E.G. Elev (ft) 450.27 Reach Len. (ft) Crit W.S. (ft) 445.78 Flow Area (sq ft) 3467.35 750.82 646.37 E.G. Slope (ft /ft) 0.000460 Area (sq ft) 3467.35 750.82 646.37 Q Total (cfs) 7432.00 Flow (cfs) 5216.74 1852.00 363.25 Top Width (ft) 2438.44 Top Width (ft) 1636.78 100.15 701.51 Vel Total (ft /s) 1.53 Avg. Vel. (ft /s) 1.50 2.47 0.56 Max Chl Dpth (ft) 18.82 Hydr. Depth (ft) 2.12 7.50 0.92 Conv. Total (cfs) 346405.5 Conv. (cfs) 243152.4 86321.8 16931.3 Length Wtd. (ft) Wetted Per. (ft) 1639.09 115.57 704.83 Min Ch E1 (ft) 431.40 Shear (lb /sq ft) 0.06 0.19 0.03 Alpha 1.34 Stream Power (lb /ft s) 0.09 0.46 0.01 Frctn Loss (ft) Cum Volume (acre -ft) C & E Loss (ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat Revised Existing Condition HEC -RAS Model - Page 57 W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) 452.43 0.08 452.52 449.81 0.000460 23083.00 3176.06 2.04 21.03 1076005.3 431.40 1.27 Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB Channel Right OB 0.035 0.045 0.055 7256.44 981.11 3059.34 7256.44 981.11 3059.34 17158.71 2812.99 3111.30 1730.00 105.00 1341.06 2.36 2.87 1.02 4.19 9.34 2.28 799846.9 131126.4 145032.0 1734.56 120.48 1346.74 0.12 0.23 0.07 0.28 0.67 0.07 Warning - Divided flow computed for this cross - section. Warning - The parabolic search method failed to converge on critical depth. The program will try the cross section slice /secant method to find critical depth. SUMMARY OF MANNING'S N VALUES River:RIVER -1 Reach Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 River Sta. nl n2 n3 n4 n5 n6 n7 n8 n9 n10 56940 .05 .052 .055 .045 .058 .06 55590 .04 .055 .06 .045 .06 .055 53350 .05 .055 .05 .045 .058 .055 51350 .05 .05 .055 .045 .058 .06 48000 .06 .055 .055 .045 .06 .06 40650 .06 .055 .06 .045 .045 .04 39540 .05 .055 .055 .045 .05 .055 39490 .05 .05 .055 .045 .05 .055 39440 .06 .06 .055 .045 .06 .055 39290 .05 .055 .045 .055 .05 38200 .05 .06 .045 .055 .05 36970 .06 .05 .06 .045 .06 .05 34950 .05 .055 .06 .045 .055 34850 .05 .055 .06 .045 .055 .05 34260 .055 _06 .045 .055 33470 .055 .06 .045 .055 33145 .05 .055 .06 .045 .055 32725 .05 .055 .06 .045 .055 .05 32305 .05 .055 .06 .045 .065 .05 32230 .055 .025 .055 .02 .05 32215 Bridge 32200 .055 .025 .055 .02 .05 32150 .055 .035 .055 31335 .05 .04 .07 .045 .07 30958 .05 .04 .07 .045 .07 30604 .05 .04 .065 .04 .07 .045 .07 30384 .05 .04 .065 .04 .07 .045 .07 .045 .07 30027 .05 .04 .065 .04 .07 .045 29831 .05 .04 .065 .04 .07 .045 .035 .045 .075 .045 29651 .05 .04 .065 .04 .07 .045 .075 .045 29124 .05 .04 .07 .045 28890 .05 .04 .065 .04 .075 .045 28720 .05 .04 .065 .04 .07 .045 .035 .045 28492 .05 .04 .065 .04 .07 .045 .035 .045 28168 .05 .04 .065 .04 .07 .045 .035 .045 27992 .05 .04 .065 .04 .07 .045 27748 .05 .04 .065 .04 .07 .045 27449 .05 .04 .065 .04 .07 .045 27165 .05 .04 .07 .045 26880 .05 .04 .065 .04 .07 .045 26830 .055 .035 .055 .035 .055 25770 .055 .035 .065 25530 .055 .035 .065 24700 .055 .035 .055 .035 .055 24400 .055 .035 .055 .035 .055 23800 .055 .035 .055 .035 .055 22370 .05 .06 .035 .055 .05 21560 .055 .035 .055 19930 .045 .035 .045 .035 .055 19330 .035 .035 .055 18440 .035 .045 .055 SUMMARY OF REACH LENGTHS River: RIVER -1 Revised Existing Condition HEC -RAS Model - Page 58 Reach River Sta. Left Channel Right Reach -1 56940 1250 1350 1250 Reach -1 55590 2000 2240 2200 Reach -1 53350 1650 2000 1750 Reach -1 51350 3600 3350 3700 Reach -1 48000 5700 7350 2900 Reach -1 40650 1400 1110 800 Reach -1 39540 50 50 50 Reach -1 39490 50 50 50 Reach -1 39440 150 150 280 Reach -1 39290 980 1090 1110 Reach -1 38200 1150 1230 950 Reach -1 36970 2020 2020 2020 Reach -1 34950 110 100 90 Reach -1 34850 520 590 640 Reach -1 34260 830 790 250 Reach -1 33470 315 325 260 Reach -1 33145 385 420 290 Reach -1 32725 380 420 520 Reach -1 32305 55 55 55 Reach -1 32230 50 50 50 Reach -1 32215 Bridge Reach -1 32200 50 50 50 Reach -1 32150 160 170 180 Reach -1 31335 377 377 344 Reach -1 30958 303 354 302 Reach -1 30604 269 220 319 Reach -1 30384 371 357 410 Reach -1 30027 148 196 299 Reach -1 29831 171 180 197 Reach -1 29651 600 527 404 Reach -1 29124 161 234 337 Reach -1 28890 153 170 194 Reach -1 28720 173 228 338 Reach -1 28492 406 324 307 Reach -1 28168 167 176 223 Reach -1 27992 213 244 309 Reach -1 27748 324 299 262 Reach -1 27449 240 284 248 Reach -1 27165 240 284 201 Reach -1 26880 32 50 479 Reach -1 26830 1030 1050 960 Reach -1 25770 240 240 240 Reach -1 25530 700 700 560 Reach -1 24700 610 350 80 Reach -1 24400 130 550 230 Reach -1 23800 720 1430 680 Reach -1 22370 800 800 400 Reach -1 21560 1600 1450 1150 Reach -1 19930 800 600 550 Reach -1 19330 650 650 650 Reach -1 18440 10000 5880 4500 SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS River: RIVER -1 Reach River Sta. Contr. Expan. Reach -1 56940 .1 .3 Reach -1 55590 .1 .3 Reach -1 53350 .1 .3 Reach -1 51350 .1 .3 Reach -1 48000 .1 .3 Reach -1 40650 .1 .3 Reach -1 39540 .1 .3 Reach -1 39490 .1 .3 Revised Existing Condition HEC -RAS Model - Page 59 Reach -1 39440 .1 .3 Reach -1 39290 .1 .3 Reach -1 38200 .1 .3 Reach -1 36970 .1 .3 Reach -1 34950 .3 .5 Reach -1 34850 .3 .5 Reach -1 34260 .3 .5 Reach -1 33470 .3 .5 Reach -1 33145 .3 .5 Reach -1 32725 .3 .5 Reach -1 32305 .5 .7 Reach -1 32230 .5 .7 Reach -1 32215 Bridge 432.00 Reach -1 32200 .5 .7 Reach -1 32150 .5 .7 Reach -1 31335 .1 .3 Reach -1 30958 .1 .3 Reach -1 30604 .1 .3 Reach -1 30384 .1 .3 Reach -1 30027 .1 .3 Reach -1 29831 .1 .3 Reach -1 29651 .1 .3 Reach -1 29124 .1 .3 Reach -1 28890 .1 .3 Reach -1 28720 .1 .3 Reach -1 28492 .1 .3 Reach -1 28168 .1 .3 Reach -1 27992 .1 .3 Reach -1 27748 .1 .3 Reach -1 27449 .1 .3 Reach -1 27165 .1 .3 Reach -1 26880 .1 .3 Reach -1 26830 .1 .3 Reach -1 25770 .1 .3 Reach -1 25530 .1 .3 Reach -1 24700 .1 .3 Reach -1 24400 .1 .3 Reach -1 23800 .1 .3 Reach -1 22370 .1 .3 Reach -1 21560 .1 .3 Reach -1 19930 .1 .3 Reach -1 19330 .1 .3 Reach -1 18440 .1 .3 Profile Output Table - Standard Table 1 Reach River Sta Q Total Min Ch E1 W.S. Elev Crit W.S. E.G. Elev E.G. Slope 2.47 4864.54 (cfs) (ft) (ft) (ft) (ft) (ft /ft) Reach -1 18440 7432.00 431.40 450.22 445.78 450.27 0.000460 Reach -1 18440 23083.00 431.40 452.43 449.81 452.52 0.000460 Reach -1 19330 7432.00 431.70 450.30 5385.21 450.31 0.000019 Reach -1 19330 23083.00 431.70 452.57 4845.47 452.61 0.000064 Reach -1 19930 7432.00 432.00 450.30 4943.94 450.33 0.000030 Reach -1 19930 23083.00 432.00 452.57 8489.44 452.69 0.000145 Reach -1 21560 7432.00 432.40 450.34 450.39 0.000049 Reach -1 21560 23083.00 432.40 452.73 453.04 0.000293 Reach -1 22370 7432.00 432.50 450.38 450.44 0.000069 Reach -1 22370 23083.00 432.50 452.95 453.33 0.000388 Reach -1 23800 7432.00 433.30 450.47 450.56 0.000145 Reach -1 23800 23083.00 433.30 453.46 453.90 0.000633 Reach -1 24400 7870.00 431.50 450.57 450.59 0.000047 Reach -1 24400 22468.00 431.50 453.94 454.05 0.000173 Vel Chnl Flow Area Top Width Froude # Chl (ft /s) (sq ft) (ft) 2.47 4864.54 2438.44 0.16 2.87 11296.88 3176.06 0.17 0.99 11198.50 2783.74 0.05 2.02 18219.41 3448.66 0.09 1.29 6694.74 1308.83 0.07 3.06 10147.25 1769.20 0.15 1.71 4354.30 309.14 0.08 4.50 5385.21 770.84 0.20 1.91 3885.75 301.87 0.09 4.92 4845.47 665.10 0.23 1.68 3207.39 362.09 0.12 2.78 4943.94 932.30 0.24 1.33 5915.40 607.59 0.08 2.65 8489.44 1060.99 0.16 Revised Existing Condition HEC -RAS Model - Page 60 Reach -1 24700 7870.00 433.90 450.55 450.65 0.000155 1.92 3276.81 340.68 0.13 Reach -1 24700 22468.00 433.90 453.90 454.24 0.000501 4.27 4813.86 560.57 0.24 Reach -1 25530 7870.00 434.40 450.64 450.81 0.000261 3.34 2352.78 213.87 0.18 Reach -1 25530 22468.00 434.40 454.05 454.85 0.000962 7.19 3126.24 239.66 0.35 Reach -1 25770 7870.00 434.60 450.75 450.86 0.000158 2.71 2901.81 249.21 0.14 Reach -1 25770 22468.00 434.60 454.53 455.05 0.000557 5.77 3897.10 276.81 0.27 Reach -1 26830 7870.00 436.30 450.94 451.13 0.000362 3.46 2272.14 245.83 0.20 Reach -1 26830 22468.00 436.30 455.36 455.71 0.000679 5.15 6299.76 1228.21 0.28 Reach -1 26880 7870.00 436.20 451.01 451.15 0.000367 2.99 2628.84 276.59 0.17 Reach -1 26880 22468.00 436.20 455.42 455.81 0.001179 5.19 5223.30 1352.94 0.28 Reach -1 27165 7870.00 436.10 451.13 451.27 0.000514 3.50 3587.74 1189.70 0.20 Reach -1 27165 22468.00 436.10 455.91 455.99 0.000350 2.92 9971.81 1439.14 0.15 Reach -1 27449 7870.00 435.60 451.25 451.42 0.000510 3.41 2988.79 1194.68 0.20 Reach -1 27449 22468.00 435.60 456.00 456.09 0.000407 2.77 9831.74 1617.91 0.17 Reach -1 27748 7870.00 435.20 451.40 451.57 0.000519 3.43 2972.46 1290.66 0.20 Reach -1 27748 22468.00 435.20 456.11 456.21 0.000404 2.96 9541.51 1474.77 0.16 Reach -1 27992 7870.00 435.60 451.60 451.66 0.000216 2.26 4947.78 1229.11 0.13 Reach -1 27992 22468.00 435.60 456.23 456.29 0.000242 2.40 10947.85 1366.89 0.12 Reach -1 28168 7870.00 436.60 451.67 451.70 0.000135 1.74 5817.44 1180.01 0.10 Reach -1 28168 22468.00 436.60 456.28 456.34 0.000160 1.89 11618.78 1346.71 0.10 Reach -1 28492 7870.00 436.30 451.71 451.74 0.000131 1.71 5634.38 1091.33 0.10 Reach -1 28492 22468.00 436.30 456.32 456.39 0.000162 1.90 11018.68 1251.92 0.10 Reach -1 28720 7870.00 436.80 451.74 451.79 0.000169 1.93 5074.45 986.79 0.11 Reach -1 28720 22468.00 436.80 456.37 456.45 0.000209 2.27 9935.72 1120.15 0.12 Reach -I 28890 7870.00 437.10 451.70 451.89 0.000801 3.75 2681.38 811.84 0.24 Reach -1 28890 22468.00 437.10 456.38 456.53 0.000639 3.52 7515.98 1095.86 0.20 Reach -1 29124 7870.00 437.40 451.84 452.06 0.000578 3.81 2068.09 232.47 0.22 Reach -1 29124 22468.00 437.40 456.42 456.78 0.000729 5.36 5685.48 966.17 0.28 Reach -1 29651 7870.00 438.06 452.21 444.94 452.37 0.000589 3.44 2844.24 755.28 0.21 Reach -1 29651 22468.00 . 438.06 456.94 450.26 457.13 0.000649 3.96 6733.12 1025.04 0.21 Reach -1 29831 7870.00 438.14 452.36 445.37 452.47 0.000440 2.90 3170.00 657.26 0.18 Reach -1 29831 22468.00 438.14 457.07 450.79 457.25 0.000531 3.45 6634.47 900.93 0.19 Reach -1 30027 7870.00 438.23 452.43 452.61 0.000698 3.60 2502.11 472.44 0.22 Reach -1 30027 22468.00 438.23 457.15 457.47 0.001177 4.89 5079.94 631.71 0.27 Reach -1 30384 7870.00 438.14 452.69 452.92 0.000945 3.95 2076.75 297.65 0.25 Reach -1 30384 22468.00 438.14 457.56 458.09 0.001985 6.01 3865.00 467.27 0.34 Reach -1 30604 7870.00 438.55 452.91 453.20 0.001371 4.48 1962.51 355.94 0.29 Reach -1 30604 22468.00 438.55 458.15 458.55 0.001734 5.66 5127.66 929.54 0.32 Reach -I 30958 7870.00 438.55 453.40 453.49 0.000545 3.21 3596.38 812.41 0.20 Reach -1 30958 22468.00 438.55 458.72 458.82 0.000402 2.48 8783.47 1215.83 0.14 Reach -1 31335 7870.00 438.55 453.40 454.05 0.003033 7.20 1595.31 577.24 0.45 Reach -1 31335 22468.00 438.55 458.85 459.06 0.000949 4.61 6518.16 1074.83 0.25 Reach -1 32150 7870.00 437.00 453.87 454.34 0.000600 5.46 1470.10 139.83 0.26 Reach -1 32150 22468.00 437.00 458.61 460.37 0.001840 10.90 2648.89 681.40 0.47 Reach -1 32200 7870.00 435.00 453.82 454.59 0.000951 7.15 1134.53 126.70 0.38 Reach -1 32200 22468.00 435.00 458.54 460.88 0.002586 12.57 1845.86 174.33 0.62 Reach -1 32215 Bridge Reach -1 32230 7870.00 435.00 453.88 446.43 454.64 0.000935 7.10 1142.60 127.35 0.38 Reach -1 32230 22468.00 435.00 458.89 455.17 461.09 0.002398 12.17 1907.84 177.86 0.60 Reach -1 32305 7870.00 437.70 453.65 455.57 0.009028 11.26 752.76 139.80 0.74 Reach -1 32305 22468.00 437.70 458.87 461.95 0.010726 15.07 1870.94 295.74 0.85 Reach -1 32725 7870.00 438.20 456.78 457.05 0.001057 4.69 2416.80 546.69 0.27 Reach -I 32725 22468.00 438.20 463.34 463.48 0.000581 3.91 8574.40 1406.16 0.21 Reach -1 33145 5645.00 438.40 457.37 457.46 0.000687 2.46 2297.13 347.25 0.17 Reach -1 33145 16681.00 438.40 463.60 463.74 0.000778 3.16 5799.40 941.37 0.19 Reach -1 33470 5645.00 439.00 457.53 457.69 0.000523 3.19 1767.79 243.61 0.21 Reach -1 33470 16681.00 439.00 463.81 463.96 0.000567 3.35 6159.48 1066.39 0.20 Reach -1 34260 5645.00 438.80 458.01 458.08 0.000427 2.19 2572.23 397.15 0.15 Reach -1 34260 16681.00 438.80 464.20 464.33 0.000421 2.87 6033.71 803.85 0.17 Reach -1 34850 5645.00 439.30 458.26 458.64 0.001230 4.95 1140.97 117.93 0.28 Reach -1 34850 16681.00 439.30 464.47 464.94 0.001691 6.16 3816.15 864.52 0.34 Reach -1 34950 5645.00 439.30 458.39 458.76 0.001184 4.88 1156.84 118.63 0.28 Reach -1 34950 16681.00 439.30 464.98 465.14 0.000739 4.14 6996.95 1897.30 0.22 Reach -1 36970 5645.00 440.00 460.94 461.28 0.001308 4.85 1431.44 344.53 0.27 Reach -1 36970 16681.00 440.00 466.66 466.90 0.001016 5.02 5778.49 1500.38 0.26 Revised Existing Condition HEC -RAS Model - Page 61 Reach -1 38200 5645.00 441.00 461.86 461.94 0.000298 2.60 2966.49 666.49 0.14 Reach -1 38200 16681.00 441.00 467.37 467.45 0.000277 2.92 8857.19 1263.33 0.14 Reach -1 39290 5645.00 441.88 462.20 462.30 0.000340 2.87 2934.55 703.27 0.15 Reach -1 39290 16681.00 441.88 467.65 467.75 0.000272 3.30 7877.35 1058.51 0.15 Reach -1 39440 5645.00 442.00 462.11 462.46 0.000903 4.76 1186.36 104.50 0.25 Reach -1 39440 16681.00 442.00 467.43 467.99 0.001202 6.92 4149.99 900.64 0.30 Reach -1 39490 5645.00 442.00 462.37 462.51 0.000465 3.04 1858.83 207.23 0.18 Reach -1 39490 16681.00 442.00 467.77 468.06 0.000753 4.54 4228.67 569.41 0.24 Reach -1 39540 5645.00 442.00 462.26 462.60 0.000871 4.70 1202.33 105.18 0.24 Reach -1 39540 16681.00 442.00 467.70 468.15 0.001002 6.39 4397.62 920.74 0.28 Reach -1 40650 5645.00 440.00 463.21 463.58 0.000885 4.96 1214.95 125.84 0.24 Reach -1 40650 16681.00 440.00 468.81 469.32 0.001135 6.91 4160.90 849.48 0.28 Reach -1 48000 2994.00 445.60 466.97 467.05 0.000218 2.45 1773.16 549.55 0.12 Reach -1 48000 10837.00 445.60 472.02 472.08 0.000189 2.83 8305.28 1592.83 0.12 Reach -1 51350 3166.00 446.50 467.55 467.62 0.000136 2.08 1523.47 110.31 0.10 Reach -1 51350 11721.00 446.50 472.97 473.05 0.000420 2.64 6509.88 1837.80 0.16 Reach -1 53350 3166.00 448.00 467.81 467.86 0.000113 1.96 1836.38 210.20 0.09 Reach -1 53350 11721.00 448.00 473.51 473.63 0.000235 3.56 7929.71 3269.18 0.14 Reach -1 55590 2700.00 452.40 468.17 468.33 0.000494 3.20 842.69 81.87 0.18 Reach -1 55590 12101.00 452.40 474.27 474.62 0.000952 5.76 4645.38 1630.46 0.26 Reach -1 56940 2700.00 449.00 468.73 468.86 0.000317 2.95 981.01 98.99 0.15 Reach -1 56940 12101.00 449.00 475.41 475.72 0.000745 5.54 5112.30 2175.35 0.23 Profile Outvut Table - Standard Table 2 Reach Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 Reach -1 River Sta 18440 18440 19330 19330 19930 19930 21560 21560 22370 22370 23800 23800 24400 24400 24700 24700 25530 25530 25770 25770 26830 26830 26880 26880 27165 27165 27449 27449 27748 27748 27992 27992 28168 28168 28492 E.G. Elev W.S. Elev Vel Head Frctn Loss C & E Loss (ft) (ft) (ft) (ft) (ft) 450.27 450.22 0.05 452.52 452.43 0.08 450.31 450.30 0.01 0.03 452.61 452.57 0.04 0.09 450.33 450.30 0.02 0.01 452.69 452.57 0.13 0.06 450.39 450.34 0.05 0.06 453.04 452.73 0.31 0.29 450.44 450.38 0.06 0.05 453.33 452.95 0.38 0.27 450.56 450.47 0.09 0.11 453.90 453.46 0.44 0.56 450.59 450.57 0.03 0.03 454.05 453.94 0.11 0.11 450.65 450.55 0.09 0.04 454.24 453.90 0.34 0.12 450.81 450.64 0.17 0.14 454.85 454.05 0.80 0.47 450.86 450.75 0.11 0.05 455.05 454.53 0.52 0.17 451.13 450.94 0.19 0.24 455.71 455.36 0.34 0.64 451.15 451.01 0.14 0.02 455.81 455.42 0.39 0.09 451.27 451.13 0.14 0.12 455.99 455.91 0.09 0.15 451.42 451.25 0.17 0.14 456.09 456.00 0.09 0.10 451.57 451.40 0.17 0.15 456.21 456.11 0.10 0.11 451.66 451.60 0.06 0.08 456.29 456.23 0.07 0.09 451.70 451.67 0.03 0.03 456.34 456.28 0.06 0.04 451.74 451.71 0.03 0.04 Q Left Q Channel (cfs) (cfs) 5216.74 1852.00 17158.71 2812.99 6 5148.11 2 12350.68 0 7159.35 9 20308.52 7432.00 22988.10 7432.00 23026.78 1 1316.77 1 4154.78 7870.00 22468.00 1764.97 5817.17 7870.00 22468.00 7870.00 22468.00 7870.00 18379.93 7870.00 20929.79 5305.31 7081.60 7285.05 9687.75 7332.25 10005.46 5678.28 9336.22 3718.45 6410.73 3584.54 Q Right Top Width (cfs) (ft) 363.25 2438.44 3111.30 3176.06 65.93 2783.74 1171.51 3448.66 32.05 1308.83 745.20 1769.20 309.14 94.90 770.84 301.87 56.22 665.10 0.33 362.09 147.41 932.30 607.59 1060.99 340.68 560.57 213.87 239.66 249.21 276.81 245.83 4088.07 1228.21 276.59 1538.21 1352.94 2564.69 1189.70 15386.40 1439.14 584.95 1194.68 12780.25 1617.91 537.75 1290.66 12462.54 1474.77 2191.72 1229.11 13131.78 1366.89 4151.55 1180.01 16057.27 1346.71 4285.46 1091.33 Revised Existing Condition HEC -RAS Model - Page 62 0.00 2217.9 0.00 9560.8 0.00 240.6 0.03 2029.2 0.01 0.05 0.00 0.02 0.01 6114.9 0.02 18780.8 0.01 0.03 0.02 6105.03 0.07 16650.83 0.02 0.14 0.01 0.03 0.02 0.02 0.00 0.01 0.00 0.03 0.01 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 Reach -1 28492 456.39 456.32 0.06 0.05 0.00 6274.33 16193.67 1251.92 Reach -1 28720 451.79 451.74 0.04 0.04 0.00 3977.38 3892.62 986.79 Reach -1 28720 456.45 456.37 0.08 0.06 0.00 7439.07 15028.93 1120.15 Reach -1 28890 451.89 451.70 0.19 0.06 0.04 6423.75 1446.25 811.84 Reach -1 28890 456.53 456.38 0.15 0.06 0.02 10200.87 12267.13 1095.86 Reach -1 29124 452.06 451.84 0.22 0.16 0.01 7870.00 232.47 Reach -1 29124 456.78 456.42 0.36 0.19 0.06 17375.62 5092.38 966.17 Reach -1 29651 452.37 452.21 0.17 0.30 0.01 6990.47 879.53 755.28 Reach -1 29651 457.13 456.94 0.19 0.34 0.02 13173.52 9294.48 1025.04 Reach -1 29831 452.47 452.36 0.11 0.09 0.01 5516.39 2353.61 657.26 Reach -1 29831 457.25 457.07 0.18 0.11 0.00 10817.55 11650.45 900.93 Reach -1 30027 452.61 452.43 0.18 0.12 0.02 7078.10 791.90 472.44 Reach -1 30027 457.47 457.15 0.32 0.18 0.04 15860.52 6607.48 631.71 Reach -1 30384 452.92 452.69 0.23 0.29 0.01 6779.75 1090.25 297.65 Reach -1 30384 458.09 457.56 0.53 0.56 0.06 17980.63 4487.37 467.27 Reach -1 30604 453.20 452.91 0.29 0.26 0.02 7234.89 635.11 355.94 Reach -1 30604 458.55 458.15 0.40 0.45 0.01 17070.96 5397.04 929.54 Reach -1 30958 453.49 453.40 0.09 0.27 0.02 2875.54 4994.46 812.41 Reach -1 30958 458.82 458.72 0.10 0.24 0.03 4005.76 18462.24 1215.83 Reach -1 31335 454.05 453.40 0.65 0.39 0.17 6113.19 1756.81 577.24 Reach -1 31335 459.06 458.85 0.21 0.21 0.03 7062.38 15405.62 1074.83 Reach -1 32150 454.34 453.87 0.46 0.20 0.09 7847.36 22.64 139.83 Reach -1 32150 460.37 458.61 1.77 0.22 1.10 21543.16 924.84 681.40 Reach -1 32200 454.59 453.82 0.77 ' 0.04 0.22 7508.97 361.03 126.70 Reach -1 32200 460.88 458.54 2.34 0.11 0.40 19812.74 2655.26 174.33 Reach -1 32215 Bridge Reach -1 32230 454.64 453.88 0.76 0.00 0.00 7500.95 369.05 127.35 Reach -1 32230 461.09 458.89 2.19 0.00 0.00 19719.65 2748.35 177.86 Reach -1 32305 455.57 453.65 1.92 0.12 0.81 7656.72 213.28 139.80 Reach -1 32305 461.95 458.87 3.07 0.24 0.62 19128.38 3339.62 295.74 Reach -1 32725 457.05 456.78 0.27 0.98 0.50 1884.46 5801.18 184.36 546.69 Reach -1 32725 463.48 463.34 0.14 0.66 0.88 8609.36 9245.89 4612.75 1406.16 Reach -1 33145 457.46 457.37 0.09 0.36 0.05 5645.00 347.25 Reach -1 33145 463.74 463.60 0.15 0.26 0.00 372.74 15442.17 866.10 941.37 Reach -1 33470 457.69 457.53 0.16 0.19 0.03 5645.00 243.61 Reach -1 33470 463.96 463.81 0.15 0.21 0.00 945.77 13535.82 2199.41 1066.39 Reach -1 34260 458.08 458.01 0.07 0.37 0.03 5645.00 397.15 Reach -1 34260 464.33 464.20 0.13 0.37 0.01 12.66 16398.72 269.62 803.85 Reach -1 34850 458.64 458.26 0.38 0.40 0.15 5645.00 117.93 Reach -1 34650 464.94 464.47 0.47 0.44 0.17 3777.11 12903.89 864.52 Reach -1 34950 458.76 458.39 0.37 0.12 0.00 5645.00 118.63 Reach -1 34950 465.14 464.98 0.16 0.11 0.09 7573.05 9107.95 1897.30 Reach -1 36970 461.28 460.94 0.34 2.51 0.00 5230.89 414.11 344.53 Reach -1 36970 466.90 466.66 0.25 1.74 0.03 161.08 9516.35 7003.57 1500.38 Reach -1 38200 461.94 461.86 0.08 0.64 0.03 25.50 3554.92 2064.58 666.49 Reach -1 38200 467.45 467.37 0.08 0.53 0.02 2903.81 6380.76 7396.42 1263.33 Reach -1 39290 462.30 462.20 0.10 0.35 0.01 40.67 4202.90 1401.44 703.27 Reach -1 39290 467.75 467.65 0.10 0.30 0.01 1781.63 7488.56 7410.81 1058.51 Reach -1 39440 462.46 462.11 0.35 0.09 0.08 5645.00 104.50 Reach -1 39440 467.99 467.43 0.56 0.09 0.14 1751.24 12224.92 2704.84 900.64 Reach -1 39490 462.51 462.37 0.14 0.03 0.02 0.01 5644.99 207.23 Reach -1 39490 468.06 467.77 0.29 0.05 0.03 2201.53 14368.47 111.00 569.41 Reach -1 39540 462.60 462.26 0.34 0.03 0.06 5645.00 105.18 Reach -1 39540 468.15 467.70 0.46 0.04 0.05 1810.69 11482.58 3387.73 920.74 Reach -1 40650 463.58 463.21 0.37 0.97 0.01 5400.71 244.29 125.84 Reach -1 40650 469.32 468.81 0.51 1.15 0.02 2149.06 10780.78 3751.16 849.48 Reach -1 48000 467.05 466.97 0.08 3.44 0.03 534.27 2408.03 51.70 549.55 Reach -1 48000 472.08 472.02 0.05 2.71 0.05 4137.02 3857.27 2842.71 1592.83 Reach -1 51350 467.62 467.55 0.07 0.57 0.00 3166.00 110.31 Reach -1 51350 473.05 472.97 0.08 0.96 0.01 4218.77 7489.52 12.70 1837.80 Revised Existing Condition HEC -RAS Model - Page 63 Reach -1 53350 467.86 467.81 0.05 0.24 0.00 448.86 2716.90 0.24 210.20 Reach -1 53350 473.63 473.51 0.12 0.58 0.01 4580.64 6956.66 183.69 3269.18 Reach -1 55590 468.33 468.17 0.16 0.44 0.03 2700.00 81.87 Reach -1 55590 474.62 474.27 0.35 0.91 0.07 4023.98 7958.97 118.04 1630.46 Reach -1 56940 468.86 468.73 0.13 0.53 0.00 108.35 2591.65 98.99 Reach -1 56940 475.72 475.41 0.31 1.10 0.00 4313.25 7670.04 117.71 2175.35 Revised Existing Condition HEC -RAS Model - Page 64 Appendix F Proposed Conditions HEC -RAS Model HEC -RAS Version 2.1 October 1997 U.S. Army Corp of Engineers Hydrologic Engineering Center 609 Second Street, Suite D Davis, California 95616 -4687 (916) 756 -1104 X X XXXXXX XXXX XXXX XX XXXX X X X X X X X X X X X X X X X X X X X XXXXXXX XXXX X XXX XXXX XXXXXX XXXX X X X X X X X X X X X X X X X X X X X X X XXXXXX XXXX X X X X XXXXX Output of the HEC -RAS Model .Plan 04 = Proposed Conditions PROJECT DATA Project Title: ABPE - FP Development Permit Project File : abpe.prj Run Date and Time: 1/23/99 1:51:48 PM Project in English units Project Description: Andrew Brown Jr. Community Park (East), City of Coppell, Texas. Coppell Aquatic and Recreation Center Project - Hydraulics and Permitting by Halff Associates, Inc. Floodplain Development Permit Application - Denton Creek Fully Developed Landuse Hydraulics Discharges: Fully Developed Landuse, 2, 10, 25, 100 -year floods. Plans: Plan 01 = Existing conditions - Conversion to hec -ras 2.1 of base model DENCR- DW.dat. (G01) Plan 02 = Revised existing conditions - Per 1998 City of Coppell aerial topography. (G02) Plan 03 = Proposed conditions per Architects - Rec center only, no mitigation. (G03) Plan 04 = Proposed conditions per Halff - Rec center and mitigation (lake enlargement). (G04) Avo 16521 - 01/99 - SBH PLAN DATA Plan Title: Proposed lake enlargement Plan File : d: \avo \16521 \hec- 2 \fd \abpe.p04 Geometry Title: Proposed Mitigation 1 - 12/98 Geometry File : d: \avo \16521 \hec- 2 \fd \abpe.g04 Flow Title Imported Flow 01 - Dencr- dw.dat Flow File d: \avo \16521 \hec- 2 \fd \abpe.f01 Plan Summary Information: Number of: Cross Sections = 50 Mulitple Openings = 0 Culverts = 0 Inline Weirs = 0 Bridges = 1 Computational Information Water surface calculation tolerance = 0.01 Critical depth calculaton tolerance = 0.01 Maximum number of interations = 20 Maximum difference tolerance = 0.3 Flow tolerance factor = 0.001 Computational Flow Regime: Subcritical Flow Proposed Condition HEC-RAS Model - Page 1 FLOW DATA Flow Title: Imported Flow 01 - Dencr- dw.dat Profile Upstream Flow File : d: \avo \16521 \hec- 2 \fd \abpe.f01 Reach -1 2 -year ultimate Flow Data (cfs) Normal S = .00046 RIVER -1 Reach -1 10 -year ultimate River Reach RS 2 -year ultimate10 -year ultimate25 -year ultimate100 -year ultimat RIVER -1 Reach -1 56940 2700 6584 9918 12101 RIVER -1 Reach -1 53350 3166 5796 9885 11721 RIVER -1 Reach -1 48000 2994 5761 9182 10837 RIVER -1 Reach -1 40650 5645 10168 14753 16681 RIVER -1 Reach -1 32725 7870 13730 19957 22468 RIVER -1 Reach -1 23800 7432 12847 20244 23083 Boundary Conditions River Reach Profile Upstream Downstream RIVER -1 Reach -1 2 -year ultimate Normal S = .00046 RIVER -1 Reach -1 10 -year ultimate Normal S = .00046 RIVER -1 'Reach-1 25 -year ultimate Normal S = .00046 RIVER -1 Reach -1 100 -year ultimat Normal S = .00046 GEOMETRY DATA Geometry Title: Proposed Mitigation 1 - 12/98 Geometry File : d: \avo \16521 \hec- 2 \fd \abpe.g04 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 56940 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 33 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1070 499.4 1720 494.5 1850 490.8 2090 477.8 2330 474.5 2480 474.6 2820 472.4 2980 475.6 3120 473.6 3300 472 3640 475 3760 475 3850 473.4 3880 469 3920 469 3930 474 3980 475.8 4120 475.3 4290 472 4335 462 4340 454.5 4345 451 4355 449.2 4360 449 4370 452 4400 467 4415 474 4440 473 4445 473.8 4630 476 4760 500 4800 502 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1850 .052 4120 .055 4335 .045 4415 .058 4630 .06 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4335 4415 1250 1350 1250 .1 .3 CROSS SECTION OUTPUT Profile 42 -year ultimate Proposed Condition HEC -R4S Model - Page 2 W.S. Elev (ft) 468.73 Element Left OB Channel Vel Head (ft) 0.13 Wt. n -Val. 0.055 0.045 E.G. Elev (ft) 468.86 Reach Len. (ft) 1250.00 1350.00 Crit W.S. (ft) 4440 Flow Area (sq ft) 101.89 879.12 E.G. Slope (ft /ft) 0.000317 Area (sq ft) 101.89 879.12 Q Total (cfs) 2700.00 Flow (cfs) 108.35 2591.65 Top Width (ft) 98.99 Top Width (ft) 30.28 68.71 Vel Total (ft /s) 2.75 Avg. Vel. (ft /s) 1.06 2.95 Max Chl Dpth (ft) 19.73 Hydr. Depth (ft) 3.36 12.80 Conv. Total (cfs) 151569.6 Conv. (cfs) 6082.7 145486.9 Length Wtd. (ft) 1347.99 Wetted Per. (ft) 31.02 78.35 Min Ch E1 (ft) 449.00 Shear (lb /sq ft) 0.07 0.22 Alpha 1.11 Stream Power (lb /ft s) 0.07 0.66 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 296.90 1498.61 C & E Loss (ft) 0.00 Cum SA (acres) 96.48 138.57 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Profile #10 475.41 0.31 475.72 0.000745 12101.00 2175.35 2.37 26.41 443201.7 1314.58 449.00 3.57 1.10 0.00 -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB 0.053 1250.00 3561.04 3561.04 4313.25 1929.73 1.21 1.85 157973.9 1932.48 0.09 0.10 1744.71 558.55 Channel 0.045 1350.00 1384.02 1384.02 7670.04 80.00 5.54 17.30 280916.9 90.82 0.71 3.93 2245.41 191.52 Right OB 1250.00 265.67 129.48 Right OB 0.058 1250.00 167.24 167.24 117.71 165.62 0.70 1.01 4311.0 165.71 0.05 0.03 1363.74 338.32 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 55590 INPUT Description: FEMA CROSS SECTION Station Elevation Data Sta Elev Sta 1000 501.5 1100 1900 489 2000 3600 472 3900 4300 452.4 4325 4440 473 4480 Manning's n Values 480 Sta n Val Sta 1000 .04 1300 4480 .055 473 Bank Sta: Left Right num= 23 Elev Sta Elev Sta Elev Sta Elev 493 1300 487 1500 484 1550 486 480 2500 475 2600 475 3000 471 472 4000 473 4240 476 4250 470 452.4 4340 472 4390 474 4410 472.5 483 4540 502 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 1900 .06 4250 .045 4340 .06 Lengths: Left Channel Right Coeff Contr. Expan. Proposed Condition HEC-R9S Model - Page 3 4250 4340 0.7 or greater 2000 2240 2200 .1 .3 Profile #100 -year ultimat CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 474.27 W.S. Elev (ft) 468.17 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.060 0.045 474.62 E.G. Elev (ft) 468.33 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 3131.71 Flow Area (sq ft) 132.53 842.69 0.000952 E.G. Slope (ft /ft) 0.000494 Area (sq ft) 132.53 842.69 12101.00 Q Total (cfs) 2700.00 Flow (cfs) 118.04 2700.00 1630.46 Top Width (ft) 81.87 Top Width (ft) 105.07 81.87 2.60 Vel Total (ft /s) 3.20 Avg. Vel. (ft /s) 0.89 3.20 21.87 Max Chl Dpth (ft) 15.77 Hydr. Depth (ft) 1.26 10.29 392156.5 Conv. Total (cfs) 121503.2 Conv. (cfs) 3825.4 121503.2 2152.79 Length Wtd. (ft) 2221.63 Wetted Per. (ft) 105.33 92.35 452.40 Min Ch El (ft) 452.40 Shear (lb /sq ft) 0.07 0.28 3.30 Alpha 1.00 Stream Power (lb /ft s) 0.07 0.90 0.91 Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 295.44 1471.93 265.67 C & E Loss (ft) 0.03 Cum SA (acres) 96.04 136.24 129.48 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 474.27 Element Left OB Channel Right OB Vel Head (ft) 0.35 Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 474.62 Reach Len. (ft) 2000.00 2240.00 2200.00 Crit W.S. (ft) 476 Flow Area (sq ft) 3131.71 1381.13 132.53 E.G. Slope (ft /ft) 0.000952 Area (sq ft) 3131.71 1381.13 132.53 Q Total (cfs) 12101.00 Flow (cfs) 4023.98 7958.97 118.04 Top Width (ft) 1630.46 Top Width (ft) 1435.38 90.00 105.07 Vel Total (ft /s) 2.60 Avg. Vel. (ft /s) 1.28 5.76 0.89 Max Chl Dpth (ft) 21.87 Hydr. Depth (ft) 2.18 15.35 1.26 Conv. Total (cfs) 392156.5 Conv. (cfs) 130405.0 257926.1 3825.4 Length Wtd. (ft) 2152.79 Wetted Per. (ft) 1436.59 102.69 105.33 Min Ch E1 (ft) 452.40 Shear (lb /sq ft) 0.13 0.80 0.07 Alpha 3.30 Stream Power (lb /ft s) 0.17 4.61 0.07 Frctn Loss (ft) 0.91 Cum Volume (acre -ft) 1648.69 2202.56 1359.44 C & E Loss (ft) 0.07 Cum SA (acres) 510.27 188.88 334.44 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER - 1 REACH: Reach -1 RS: 53350 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 34 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 510 1200 498 1300 492 1850 479 1900 476 2100 474 2500 472.5 2750 474 3400 472 3450 467 3510 469 3700 472.5 3740 472.5 4000 470 4700 472 5170 475 5300 470 5360 473 5470 472 5570 456 5580 450 5590 448 5600 450 5620 450 5630 451 Proposed Condition HEC-RAS Model - Page 4 5650 460 5670 467 5700 473 6100 478 6120 481.4 6170 490 Manning's n Values Element num= 6 Wt. n -Val. Sta n Val Sta n Val Sta n Val 1000 .05 1300 .055 3400 .05 6120 .055 473.51 Element Bank Sta: Left Right Lengths: Left Channel Right 5570 5670 473.63 1650 2000 1750 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 467.81 Element Vel Head (ft) 0.05 Wt. n -Val. E.G. Elev (ft) 467.86 Reach Len. (ft) Crit W.S. (ft) 1.48 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000113 Area (sq ft) Q Total (cfs) 3166.00 Flow (cfs) Top Width (ft) 210.20 Top Width (ft) Vel Total (ft /s) 1.72 Avg. Vel. (ft /s) Max Chl Dpth (ft) 19.81 Hydr. Depth (ft) Conv. Total (cfs) 297399.8 Conv. (cfs) Length Wtd. (ft) 1975.18 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 1.16 Stream Power (lb /ft s) Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.00 Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 473.51 Element Vel Head (ft) 0.12 Wt. n -Val. E.G. Elev (ft) 473.63 Reach Len. (ft) Crit W.S. (ft) 1385.88 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000235 Area (sq ft) Q Total (cfs) 11721.00 Flow (cfs) Top Width (ft) 3269.18 Top Width (ft) Vel Total (ft /s) 1.48 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.51 Hydr. Depth (ft) Conv. Total (cfs) 763792.8 Conv. (cfs) Length Wtd. (ft) 1866.59 Wetted Per. (ft) Min Ch E1 (ft) 448.00 Shear (lb /sq ft) Alpha 3.56 Stream Power (lb /ft s) Frctn Loss (ft) 0.58 Cum Volume (acre -ft) C & E Loss (ft) 0.01 Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 51350 INPUT Description: FEMA CROSS SECTION Station Elevation Data num= 30 5900 472 6000 473 6230 510 Sta n Val Sta n Val 5570 .045 5670 .058 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 448.86 1385.88 1.64 448.86 1385.88 1.64 448.86 2716.90 0.24 106.16 100.00 4.04 1.00 1.96 0.15 4.23 13.86 0.40 42164.0 255213.2 22.6 107.15 105.23 4.12 0.03 0.09 0.00 0.03 0.18 0.00 285.13 1414.63 265.63 93.61 131.56 129.37 Left OB Channel Right OB 0.050 0.045 0.058 1650.00 2000.00 1750.00 5561.56 1956.28 411.87 5561.56 1956.28 411.87 4580.64 6956.66 183.69 2828.92 100.00 340.26 0.82 3.56 0.45 1.97 19.56 1.21 298495.0 453327.3 11970.4 2830.68 105.23 340.87 0.03 0.27 0.02 0.02 0.97 0.01 1449.12 2116.75 1345.69 412.37 184.00 323.19 Proposed Condition HEC -RAS Model - Page 5 Sta Elev 1000 509 2030 479 3140 471.3 4000 470.5 4280 470.3 4615 482 Manning's n Values Sta n Val 1000 .05 Sta Elev 1100 504 2230 474.5 3400 469.6 4100 470.5 4315 471 4675 484 num= Sta n Val 1400 .05 4585 .06 Bank Sta: Left Right 4160 4515 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Sta Elev 1400 492.6 2470 472.8 3600 468.7 4160 470.3 4415 469.4 5215 498 6 Sta n Val 2930 .055 Sta Elev 1600 490.5 2690 472.5 3800 468.5 4200 446.5 4515 470.2 5330 500 Sta Elev 1850 487 2930 474 3870 468.5 4238 447.5 4585 483.8 5420 505.5 Sta n Val Sta n Val 4160 .045 4515 .058 Lengths: Left Channel Right 3600 3350 3700 Profile #2 -year ultimate 467.55 Element 0.07 Wt. n -Val. 467.62 Reach Len. (ft) Flow Area (sq ft) 0.000136 Area (sq ft) 3166.00 Flow (cfs) 110.31 Top Width (ft) 2.08 Avg. Vel. (ft /s) 21.05 Hydr. Depth (ft) 271953.4 Conv. (cfs) 3374.62 Wetted Per. (ft) 446.50 Shear (lb /sq ft) 1.00 Stream Power (lb /ft s) 0.57 Cum Volume (acre -ft) 0.00 Cum SA (acres) Profile #10 472.97 0.08 473.05 0.000420 11721.00 1837.80 1.80 26.47 572206.8 3486.84 446.50 1.52 0.96 0.01 3-year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 48000 INPUT Description: FEMA CROSS SECTION Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 3600.00 3350.00 3700.00 1523.47 1523.47 3166.00 110.31 2.08 13.81 271953.4 121.20 0.11 0.22 276.63 1347.84 265.60 91.59 126.73 129.29 Left OB Channel Right OB 0.055 0.045 0.058 3600.00 3350.00 3700.00 3654.86 2835.29 19.73 3654.86 2835.29 19.73 4218.77 7489.52 12.70 1468.55 355.00 14.25 1.15 2.64 0.64 2.49 7.99 1.38 205956.1 365630.6 620.0 1468.58 367.37 14.52 0.07 0.20 0.04 0.08 0.53 0.02 1274.56 2006.75 1337.02 330.98 173.55 316.07 Proposed Condition HEC -R4S Model - Page 6 Station Elevation Data Sta Elev Sta 1300 503 1450 1710 465.6 1740 2355 459 2370 2405 448.5 2410 2830 465.5 3060 3380 487.8 3570 5020 498.4 5200 Manning's n Values Sta n Val Sta 1300 .06 1540 3350 .06 Bank Sta: Left Right 2370 2445 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 32 Right OB 0.055 0.045 0.060 5700.00 Elev Sta Elev Sta Elev Sta Elev 490 1490 482.2 1540 482.5 1590 474 464.8 1880 464.5 1890 467.2 2330 469 457 2375 445.6 2385 446 2395 446.8 454 2430 462.3 2445 466.5 2500 471 467.8 3170 467.8 3240 475 3350 474.5 489 3980 491 4330 491 4740 488.5 501.5 751.77 75.00 766.07 Vel Total (ft /s) 1.30 Avg. Vel. (ft /s) num= 6 0.88 Max Chl Dpth (ft) 26.42 Hydr. Depth (ft) 4.96 n Val Sta n Val Sta n Val Sta n Val .055 2330 .055 2370 .045 2445 .06 Lengths: Left Channel Right 5700 7350 2900 Profile #2 -year ultimate 466.97 Element 0.08 Wt. n -Val. 467.05 Reach Len. (ft) Flow Area (sq ft) 0.000218 Area (sq ft) 2994.00 Flow (cfs) 549.55 Top Width (ft) 1.69 Avg. Vel. (ft /s) 21.37 Hydr. Depth (ft) 202575.7 Conv. (cfs) 7095.49 Wetted Per. (ft) 445.60 Shear (lb /sq ft) 1.74 Stream Power (lb /ft s) 3.44 Cum Volume (acre -ft) 0.03 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.055 0.045 0.060 5700.00 7350.00 2900.00 616.51 982.48 174.17 616.51 982.48 174.17 534.27 2408.03 51.70 233.64 75.00 240.91 0.87 2.45 0.30 2.64 13.10 0.72 36149.1 162928.6 3498.0 235.69 87.30 240.95 0.04 0.15 0.01 0.03 0.38 0.00 251.16 1251.48 258.20 81.94 119.61 119.06 warning - Divided flow computed for this cross- section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 472.02 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 472.08 Reach Len. (ft) 5700.00 7350.00 2900.00 Crit W.S. (ft) Flow Area (sq ft) 3730.98 1361.54 3212.76 E.G. Slope (ft /ft) 0.000189 Area (sq ft) 3730.98 1361.54 3212.76 Q Total (cfs) 10837.00 Flow (cfs) 4137.02 3857.27 2842.71 Top Width (ft) 1592.83 Top Width (ft) 751.77 75.00 766.07 Vel Total (ft /s) 1.30 Avg. Vel. (ft /s) 1.11 2.83 0.88 Max Chl Dpth (ft) 26.42 Hydr. Depth (ft) 4.96 18.15 4.19 Conv. Total (cfs) 788497.7 Conv. (cfs) 301008.9 280653.8 206835.0 Length Wtd. (ft) 5906.65 Wetted Per. (ft) 754.42 87.30 766.52 Min Ch E1 (ft) 445.60 Shear (lb /sq ft) 0.06 0.18 0.05 Alpha 2.07 Stream Power (lb /ft s) 0.06 0.52 0.04 Frctn Loss (ft) 2.71 Cum Volume (acre -ft) 969.36 1845.37 1199.74 C & E Loss (ft) 0.05 Cum SA (acres) 239.23 157.02 282.93 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 40650 INPUT Description: Proposed Condition HEC-RAS Mode! - Page 7 FEMA CROSS SECTION Station Elevation Data num= 32 0.045 0.045 1400.00 1110.00 800.00 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 501 1200 497 1800 491.5 2400 489 2700 490.2 2950 488.5 3240 489 3750 487.8 4050 480 4180 473 4320 468.2 4500 465 4600 465 4630 465.5 4730 464.8 4770 451.2 4780 440 4800 440 4810 449 4815 457.8 4860 463 4870 467 5080 464 5120 465 5170 471 5410 482.5 5550 484.2 5790 483.8 5950 486.8 6130 495.5 6150 497.8 6200 499 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .06 1200 .055 3750 .06 4730 .045 4815 .045 5410 .04 Bank Sta: Left Right 4730 4815 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) Lengths: Left Channel 1400 1110 Profile #2 -year ultimate 463.21 0.37 463.58 0.000885 5645.00 125.84 4.65 23.21 189744.9 1103.28 440.00 1.10 0.97 0.01 Right Coeff Contr. Expan. 800 .1 .3 Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Profile #100 -year ultimat 468.81 Element 0.51 Wt. n -Val. 469.32 Reach Len. (ft) Flow Area (sq ft) 0.001135 Area (sq ft) 16681.00 Flow (cfs) 849.48 Top Width (ft) 4.01 Avg. Vel. (ft /s) 28.81 Hydr. Depth (ft) 495225.4 Conv. (cfs) 1078.09 Wetted Per. (ft) 440.00 Shear (lb /sq ft) 2.05 Stream Power (lb /ft s) 1.15 Cum Volume (acre -ft) 0.02 Cum SA (acres) Left OB Channel Right OB 0.045 0.045 1400.00 1110.00 800.00 1088.49 126.46 1088.49 126.46 5400.71 244.29 80.32 45.52 4.96 1.93 13.55 2.78 181533.6 8211.3 95.90 45.86 0.63 0.15 3.11 0.29 210.82 1076.76 248.19 66.65 106.50 109.53 Left OB Channel Right OB 0.060 0.045 0.045 1400.00 1110.00 800.00 1256.27 1560.70 1343.94 1256.27 1560.70 1343.94 2149.06 10780.78 3751.16 427.74 85.00 336.74 1.71 6.91 2.79 2.94 18.36 3.99 63801.4 320059.7 111364.3 427.79 100.84 338.07 0.21 1.10 0.28 0.36 7.57 0.79 643.06 1598.83 1048.06 162.06 143.52 246.22 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 Proposed Condition HEC -R4S Model - Page 8 REACH: Reach -1 INPUT Description: FEMA CROSS SECTION Station Elevation Data Sta Elev Stz 1000 502 105( 1800 484 200C 3450 477 361C 4000 464' 402E 4150 462.5 421C 4880 481.5 497C 5600 485 573C Manning's n Values Sta n Val Sta 1000 .05 1050 4710 .055 Bank Sta: Left Right 4040 4150 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) RS: 39540 num= 34 Elev Sta Elev Sta Elev Sta Elev 491.6 1160 490 1330 487 1530 487 483 2100 480 2200 480 2480 477 477.3 3730 471.5 3790 465 3900 463 468 4040 464 4090 444 4110 442 468.5 4400 462.8 4600 464 4710 466.5 483 5080 484 5380 482 5460 482 488 5830 493.5 6040 500 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 2000 .055 4040 .045 4150 .05 Lengths: Left Channel Right Coeff Contr. Expan. 50 50 50 .1 .3 Profile #2- 462.26 0.34 462.60 0.000871 5645.00 105.18 4.70 20.26 191291.3 50.00 442.00 1.00 0.03 0.06 Profile #10 467.70 0.46 468.15 0.001002 16681.00 920.74 3.79 25.70 526851.5 50.00 442.00 2.04 0.04 0.05 year ultimate Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) -year ultimat Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Left OB 50.00 210.82 66.65 Left OB 0.055 50.00 928.65 928.65 1810.69 271.89 1.95 3.42 57188.6 272.84 0.21 0.42 607.95 150.82 Channel 0.045 50.00 1202.33 1202.33 5645.00 105.18 4.70 11.43 191291.3 113.68 0.57 2.70 1047.57 104.14 Channel 0.045 50.00 1796.82 1796.82 11482.58 110.00 6.39 16.33 362665.1 118.90 0.95 6.04 1556.05 141.03 Right OB 50.00 247.03 109.11 Right OB 0.050 50.00 1672.15 1672.15 3387.73 538.84 2.03 3.10 106997.8 539.26 0.19 0.39 1020.36 238.18 Proposed Condition HEC-RAS Model - Page 9 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39490 INPUT Description: FEMA CROSS SECTION Station Elevation Data Sta Elev Sta 1000 502 1090 3060 477.5 3175 3782 465 3885 3985 462.8 4030 4193 442 4217 4635 464 4670 5940 495 6120 Manning's n Values Sta n Val Sta 1000 .05 1090 4950 .055 Bank Sta: Left Right 4030 4310 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 33 Elev Sta 491.5 2380 478.2 3320 462.7 3895 467.5 4045 443.5 4257 478.2 4950 499 6200 num= 6 n Val Sta .05 2380 Lengths: Left 50 Profile #2- 462.37 0.14 462.51 0.000465 5645.00 207.23 3.04 20.37 261852.2 50.00 442.00 1.00 0.03 0.02 Elev 479 477 462.3 463 462.5 478.5 500 n Val .055 'hannel 50 Sta 2480 3470 3914 4155 4310 5380 Sta 3760 Right 50 Elev Sta Elev 478.5 2670 478 477 3760 478 463 3965 464 454.3 4183 442 468.5 4505 478.5 483.5 5520 483.5 n Val Sta n Val .045 4670 .05 Coeff Contr. Expan .1 .3 (ear ultimate Element Wt. n -Val. Reach Len. (ft) Flow Area (sq ft) Area (sq ft) Flow (cfs) Top Width (ft) Avg. Vel. (ft /s) Hydr. Depth (ft) Conv. (cfs) Wetted Per. (ft) Shear (lb /sq ft) Stream Power (lb /ft s) Cum Volume (acre -ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.77 Element Vel Head (ft) 0.29 Wt. n -Val. E.G. Elev (ft) 468.06 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000753 Area (sq ft) Q Total (cfs) 16681.00 Flow (cfs) Top Width (ft) 569.41 Top Width (ft) Vel Total (ft /s) 3.94 Avg. Vel. (ft /s) Max Chl Dpth (ft) 25.77 Hydr. Depth (ft) Conv. Total (cfs) 607863.7 Conv. (cfs) Left OB 0.045 50.00 0.12 0.12 0.01 3.51 0.07 0.03 0.4 3.51 0.00 0.00 210.82 66.65 Left OB 0.045 50.00 984.25 984.25 2201.53 252.69 2.24 3.90 80224.7 Channel 0.045 50.00 1858.71 1858.71 5644.99 203.72 3.04 9.12 261851.8 210.92 0.26 0.78 1045.82 103.96 Channel 0.045 50.00 3163.03 3163.03 14368.47 273.58 4.54 11.56 523594.2 Right OB 50.00 247.03 109.11 Right OB 0.045 50.00 81.39 81.39 111.00 43.13 1.36 1.89 4044.8 Proposed Condition HEC -RAS Model - Page 10 Length Wtd. (ft) 50.00 Wetted Per. (ft) 253.79 281.80 44.08 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.18 0.53 0.09 Alpha Elev 1.19 Stream Power (lb /ft s) 0.41 2.40 0.12 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 606.85 1553.21 1019.36 C & E Loss (ft) 0.03 Cum SA (acres) 150.52 140.81 237.85 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39440 INPUT Description: CROSS SECTION 39440 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. * * * * * * * * ** END OF KH- PARCHE COORDINATION MODEL * * * * * * * * * * * * * * * * ** Station Elevation Data num= 34 4040 4150 150 150 280 CROSS SECTION OUTPUT Profile #2 -year Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 502 1050 491.6 1160 490 1330 487 1530 487 1800 484 2000 483 2100 480 2200 480 2480 477 3450 477 3610 477.3 3730 471.5 3790 465 3900 463 4000 464 4025 468 4040 464 4090 444 4110 442 4150 462.5 4210 468.5 4400 462.8 4600 464 4710 466.5 4880 481.5 4970 483 5080 484 5380 482 5460 482 5600 485 5730 488 5830 493.5 6040 500 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .06 1050 .06 2000 .055 4040 .045 4150 .06 4710 .055 Bank Sta: Left Right Lengths: Left Channel Right 4040 4150 150 150 280 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.11 Element Vel Head (ft) 0.35 Wt. n -Val. E.G. Elev (ft) 462.46 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000903 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 104.50 Top Width (ft) Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) Max Chl Dpth (ft) 20.11 Hydr. Depth (ft) Conv. Total (cfs) 187895.2 Conv. (cfs) Length Wtd. (ft) 166.14 Wetted Per. (ft) Min Ch E1 (ft) 442.00 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s) Frctn Loss (ft) 0.09 Cum Volume (acre -ft) C & E Loss (ft) 0.08 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 150.00 150.00 280.00 1186.36 1186.36 5645.00 104.50 4.76 11.35 187895.2 112.94 0.59 2.82 210.82 1044.07 247.03 66.65 103.79 109.11 Proposed Condition HEC -RAS Model - Page 11 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat Sta Elev Sta Elev W.S. Elev (ft) 467.43 Element Left OB Channel Right OB Vel Head (ft) 0.56 Wt. n -Val. 0.055 0.045 0.060 E.G. Elev (ft) 467.99 Reach Len. (ft) 150.00 150.00 280.00 Crit W.S. (ft) 464 Flow Area (sq ft) 855.42 1766.91 1527.63 E.G. Slope (ft /ft) 0.001202 Area (sq ft) 855.42 1766.91 1527.63 Q Total (cfs) 16681.00 Flow (cfs) 1751.23 12224.96 2704.82 Top Width (ft) 900.64 Top Width (ft) 266.66 110.00 523.98 Vel Total (ft /s) 4.02 Avg. Vel. (ft /s) 2.05 6.92 1.77 Max Chl Dpth (ft) 25.43 Hydr. Depth (ft) 3.21 16.06 2.92 Conv. Total (cfs) 481203.7 Conv. (cfs) 50518.4 352658.3 78026.9 Length Wtd. (ft) 189.42 Wetted Per. (ft) 267.54 118.90 524.37 Min Ch E1 (ft) 442.00 Shear (lb /sq ft) 0.24 1.11 0.22 Alpha 2.23 Stream Power (lb /ft s) 0.49 7.71 0.39 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 605.80 1550.38 1018.43 C & E Loss (ft) 0.14 Cum SA (acres) 150.22 140.59 237.52 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 39290 INPUT Description: Station Elevation Data num= 30 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 474 1030 472 1070 470 1115 468 1200 466 1275 464 1320 462 1345 460.3 1400 462 1450 464 1525 464 1540 462 1550 460 1560 450 1565 445 1580 441.88 1600 445 1615 450 1675 460 1710 460 1750 458 1950 458 2000 460 2150 462 2175 464 2180 466 2190 468 2200 470 2240 472 2310 474 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1275 .055 1540 .045 1675 .055 2175 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1525 1675 980 1090 1110 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 462.20 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.055 0.045 0.055 E.G. Elev (ft) 462.30 Reach Len. (ft) 980.00 1090.00 1110.00 Crit W.S. (ft) Flow Area (sq ft) 84.65 1466.29 1383.62 E.G. Slope (ft /ft) 0.000340 Area (sq ft) 84.65 1466.29 1383.62 Q Total (cfs) 5645.00 Flow (cfs) 40.67 4202.90 1401.44 Top Width (ft) 703.27 Top Width (ft) 89.34 136.47 477.46 Vel Total (ft /s) 1.92 Avg. Vel. (ft /s) 0.48 2.87 1.01 Max Chl Dpth (ft) 20.32 Hydr. Depth (ft) 0.95 10.74 2.90 Conv. Total (cfs) 306005.4 Conv. (cfs) 2204.5 227831.5 75969.4 Length Wtd. (ft) 1095.50 Wetted Per. (ft) 89.43 145.10 477.57 Min Ch E1 (ft) 441.88 Shear (lb /sq ft) 0.02 0.21 0.06 Alpha 1.72 Stream Power (lb /ft s) 0.01 0.62 0.06 Frctn Loss (ft) 0.35 Cum Volume (acre -ft) 210.67 1039.50 242.59 C & E Loss (ft) 0.01 Cum SA (acres) 66.50 103.37 107.57 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.65 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.054 0.045 0.055 Proposed Condition HEC -RAS Model - Page 12 E.G. Elev (ft) 467.75 Reach Len. (ft) 980.00 1090.00 1110.00 Crit W.S. (ft) Sta Elev Flow Area (sq ft) 1493.25 2272.53 4111.54 E.G. Slope (ft /ft) 0.000272 Area (sq ft) 1493.25 2272.53 4111.54 Q Total (cfs) 16681.00 Flow (cfs) 1781.62 7488.57 7410.81 Top Width (ft) 1058.51 Top Width (ft) 395.25 150.00 513.26 Vel Total (ft /s) 2.12 Avg. Vel. (ft /s) 1.19 3.30 1.80 Max Chl Dpth (ft) 25.77 Hydr. Depth (ft) 3.78 15.15 8.01 Conv. Total (cfs) 1011825.9 Conv. (cfs) 108068.4 454237.2 449520.3 Length Wtd. (ft) 1083.43 Wetted Per. (ft) 395.46 158.75 514.00 Min Ch E1 (ft) 441.88 Shear (lb /sq ft) 0.06 0.24 0.14 Alpha 1.44 Stream Power (lb /ft s) 0.08 0.80 0.24 Frctn Loss (ft) 0.30 Cum Volume (acre -ft) 601.75 1543.42 1000.31 C & E Loss (ft) 0.01 Cum SA (acres) 149.08 140.15 234.19 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 38200 INPUT Description: Station Elevation Data num= 49 Left OB Channel Right OB Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev E.G. Elev (ft) 1000 473.2 1250 472 1360 470 1400 468 1450 468 1540 468 • 1570 466 1600 464 1650 462 1760 461 Area (sq ft) 1930 462 2050 464 2070 466 2100 467.4 2120 466 2125 464 2135 462 2142 460 2160 450 2170 444 550.00 2185 441 2200 444 2215 450 2255 460 2270 462 2.92 2295 462 2340 462 2390 464 2440 464 2460 462 2480 460 2500 458 2515 456 2530 454 2535 452 2560 451 2580 452 2600 454 2620 456 2670 458 2720 460 2755 462 2780 464 2800 466 2820 468 2840 470 2860 472 2950 474 3070 474.4 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1540 .06 2100 .045 2270 .055 2755 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2100 2270 1150 1230 950 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 461.86 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 461.94 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 104.37 1369.66 1492.46 E.G. Slope (ft /ft) 0.000298 Area (sq ft) 104.37 1369.66 1492.46 Q Total (cfs) 5645.00 Flow (cfs) 25.50 3554.92 2064.58 Top Width (ft) 666.49 Top Width (ft) 241.75 133.50 291.24 Vel Total (ft /s) 1.90 Avg. Vel. (ft /s) 0.24 2.60 1.38 Max Chl Dpth (ft) 20.86 Hydr. Depth (ft) 0.43 10.26 5.12 Conv. Total (cfs) 326779.5 Conv. (cfs) 1476.3 205788.4 119514.8 Length Wtd. (ft) 1168.35 Wetted Per. (ft) 241.76 141.12 292.46 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.01 0.18 0.10 Alpha 1.36 Stream Power (lb /ft s) 0.00 0.47 0.13 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 208.55 1004.02 205.94 C & E Loss (ft) 0.03 Cum SA (acres) 62.77 99.99 97.78 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 467.37 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 467.45 Reach Len. (ft) 1150.00 1230.00 950.00 Crit W.S. (ft) Flow Area (sq ft) 2540.53 2182.32 4134.31 E.G. Slope (ft /ft) 0.000277 Area (sq ft) 2540.53 2182.32 4134.31 Q Total (cfs) 16681.00 Flow (cfs) 2903.80 6380.78 7396.41 Top Width (ft) 1263.33 Top Width (ft) 550.00 169.61 543.72 Vel Total (ft /s) 1.88 Avg. Vel. (ft /s) 1.14 2.92 1.79 Proposed Condition HEC-RAS Model - Page 13 Max Chl Dpth (ft) 26.37 Hydr. Depth (ft) 4.62 12.87 7.60 Conv. Total (cfs) 1002081.9 Conv. (cfs) 174440.9 383314.4 444326.6 Length Wtd. (ft) 1101.79 Wetted Per. (£t) 550.30 177.88 545.34 Min Ch E1 (ft) 441.00 Shear (lb /sq ft) 0.08 0.21 0.13 Alpha 1.39 Stream Power (lb /ft s) 0.09 0.62 0.23 Frctn Loss (ft) 0.53 Cum Volume (acre -ft) 556.38 1487.69 895.25 C & E Loss (ft) 0.02 Cum SA (acres) 138.45 136.15 220.72 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 36970 INPUT Description: * * * ** SECTION "D" * * * ** CROSS SECTION 36970 FROM FEMA MODEL. UPSTREAM OF PARKS OF COPPELL. Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev 1000 483 1050 477.5 1200 475 1810 473 2155 474 2360 469 2900 465 2930 458 2930 453.5 2970 442.7 2975 450.6 2985 454 3140 466.5 3280 465 3400 462 3670 463 3740 459 3870 459 4070 473 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val 1000 .06 1200 .05 2155 .06 3960 .05 Sta Elev 1430 475 2560 466 2930 444 2990 456 3430 462 3960 461.5 Sta Elev 1510 473.8 2850 466 2937 440 3060 465 3570 464.5 3990 463.5 Bank Sta: Left Right Lengths: Left Channel Right 2900 3060 2020 2020 2020 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 460.94 Element Vel Head (ft) 0.34 Wt. n -Val. E.G. Elev (ft) 461.28 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.001308 Area (sq ft) Q Total (cfs) 5645.00 Flow (cfs) Top Width (ft) 344.53 Top Width (ft) Vel Total (ft /s) 3.94 Avg. Vel. (ft /s) Max Chl Dpth (ft) 20.94 Hydr. Depth (ft) Conv. Total (cfs) 156083.1 Conv. (cfs) Length Wtd. (ft) 2020.00 Wetted Per. (ft) Min Ch E1 (ft) 440.00 Shear (lb /sq ft) Sta n Val Sta n Val 2900 .045 3060 .06 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.060 2020.00 2020.00 2020.00 1079.55 351.89 1079.55 351.89 5230.89 414.11 110.97 233.56 4.85 1.18 9.73 1.51 144633.0 11450.1 132.09 233.65 0.67 0.12 Proposed Condition HEC-RAS Model - Page 14 Alpha 1.41 Stream Power (lb /ft s) 3.23 0.14 Frctn Loss (ft) 2.51 Cum Volume (acre -ft) 207.17 969.44 185.83 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 96.54 92.06 Warning - Divided flow computed for this cross - section. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 466.66 Element Left OB Channel Right OB Vel Head (ft) 0.25 Wt. n -Val. 0.060 0.045 0.060 E.G. Elev (ft) 466.90 Reach Len. (ft) 2020.00 2020.00 2020.00 Crit W.S. (ft) Flow Area (sq ft) 262.74 1895.31 3620.40 E.G. Slope (ft /ft) 0.001016 Area (sq ft) 262.74 1895.31 3620.40 Q Total (cfs) 16681.00 Flow (cfs) 161.07 9516.39 7003.54 Top Width (ft) 1500.38 Top Width (ft) 383.79 160.00 956.58 Vel Total (ft /s) 2.89 Avg. Vel. (ft /s) 0.61 5.02 1.93 Max Chl Dpth (ft) 26.66 Hydr. Depth (ft) 0.68 11.85 3.78 Conv. Total (cfs) 523424.7 Conv. (cfs) 5054.0 298610.1 219760.6 Length Wtd. (ft) 2020.00 Wetted Per. (ft) 383.81 181.85 957.08 Min Ch E1 (ft) 440.00 Shear (lb /sq ft) 0.04 0.66 0.24 Alpha 1.91 Stream Power (lb /ft s) 0.03 3.32 0.46 Frctn Loss (ft) 1.74 Cum Volume (acre -ft) 519.37 1430.12 810.69 C & E Loss (ft) 0.03 Cum SA (acres) 126.12 131.49 204.36 Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34950 INPUT Description: CROSS SECTION 34950 FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL MODIFIED TO ELIMINATE FLOW AREAS IN COTTONWOOD BRANCH AT SOUTH END OF THE CROSS SECTION & INEFFECTIVE FLOW AT NORTH END. Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev Sta 620 470 620 465 740 464 760 1000 463.48 1062 463 1190 462 1355 2038 462 2210 463 2270 464 2310 2341 455 2380 450 2388 445 2390 2410 440 2428 445 2435 450 2442 2520 465 2532 466 2550 467 2570 2610 470 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta 620 .05 1355 .055 2005 .06 2310 Bank Sta: Left Right Lengths: Left Channel Right 2310 2520 110 100 90 CROSS SECTION OUTPUT Profile #2-year ultimate W.S. Elev (ft) 458.39 Element Vel Head (ft) 0.37 Wt. n -Val. E.G. Elev (ft) 458.76 Reach Len. (ft) Crit W.S. (ft) Flow Area (sq ft) Elev Sta 463 930 461 2005 464.3 2338 440 2394 455 2465 468 2590 n Val Sta .045 2520 Coeff Contr. .3 Left OB 110.00 Elev 463 461 460 439.3 460 469 n Val .055 Expan. .5 Channel Right OB 0.045 100.00 90.00 1156.84 Proposed Condition HEC -RAS Model - Page 15 E.G. Slope (ft /ft) 0.001184 Area (sq ft) Station Elevation 1156.84 num= Q Total (cfs) 5645.00 Flow (cfs) Elev 5645.00 465 Top Width (ft) 118.63 Top Width (ft) 463 118.63 464 Vel Total (ft /s) 4.88 Avg. Vel. (ft /s) 445 4.88 445 Max Chl Dpth (ft) 19.09 Hydr. Depth (ft) 466 9.75 467 Conv. Total (cfs) 164024.1 Conv. (cfs) 472 164024.1 476 Length Wtd. (ft) 100.00 Wetted Per. (ft) n Values 130.02 num= Min Ch E1 (ft) 439.30 Shear (lb /sq ft) n Val 0.66 .05 Alpha 1.00 Stream Power (lb /ft s) .05 3.21 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 207.17 917.59 177.67 C & E Loss (ft) 0.00 Cum SA (acres) 59.58 91.22 86.64 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.98 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.054 0.045 E.G. Elev (ft) 465.14 Reach Len. (ft) 110.00 100.00 90.00 Crit W.S. (ft) Flow Area (sq ft) 4794.27 2202.44 E.G. Slope (ft /ft) 0.000739 Area (sq ft) 4794.27 2202.44 Q Total (cfs) 16681.00 Flow (cfs) 7572.85 9108.15 Top Width (ft) 1897.28 Top Width (ft) 1687.51 209.77 Vel Total (ft /s) 2.38 Avg. Vel. (ft /s) 1.58 4.14 Max Chl Dpth (ft) 25.68 Hydr. Depth (ft) 2.84 10.50 Conv. Total (cfs) 613498.0 Conv. (cfs) 278516.2 334981.8 Length Wtd. (ft) 103.41 Wetted Per. (ft) 1687.58 222.79 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.13 0.46 Alpha 1.84 Stream Power (lb /ft s) 0.21 1.89 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 402.12 1335.10 726.74 C & E Loss (ft) 0.09 Cum SA (acres) 78.10 122.92 182.18 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34850 INPUT Description: CROSS SECTION 34850. FROM BROCKETTE DAVIS AND DRAKE PROPOSED MODEL. NOT MODIFIED Station Elevation Data num= Sta Elev Sta Elev 0 465 648 465 1210 463 1270 464 1380 450 1388 445 1428 445 1435 450 1532 466 1550 467 1630 471 1648 472 1740 476 1760 477.79 Manning's n Values 1610 num= Sta n Val Sta n Val 0 .05 648 .055 1671 .05 Bank Sta: Left 1310 CROSS SECTION OU W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) 32 Sta Elev Sta Elev Sta Elev 660 461 1005 461 1038 462 1310 464.3 1338 460 1341 455 1390 440 1394 439.3 1410 440 1442 455 1465 460 1520 465 1570 468 1590 469 1610 470 1671 473 1691 474 1710 475 6 Sta n Val Sta n Val Sta n Val 1005 .06 1310 .045 1520 .055 Right Lengths: Left Channel Right 1520 520 590 640 TPUT Profile #2 -year ultimate 458.26 Element 0.38 Wt. n -Val. 458.64 Reach Len. (ft) Flow Area (sq ft) Coeff Contr. Expan. .3 .5 Left OB Channel Right OB 0.045 520.00 590.00 640.00 1140.97 Proposed Condition HEC -RAS Model - Page 16 E.G. Slope (ft /ft) 0.001230 Area (sq ft) 1140.97 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 117.93 Top Width (ft) 117.93 Vel Total (ft /s) 4.95 Avg. Vel. (ft /s) 4.95 Max Chl Dpth (ft) 18.96 Hydr. Depth (ft) 9.67 Conv. Total (cfs) 160941.6 Conv. (cfs) 160941.6 Length Wtd. (ft) 590.00 Wetted Per. (ft) 129.23 Min Ch El (ft) 439.30 Shear (lb /sq ft) 0.68 Alpha 1.00 Stream Power (lb /ft s) 3.36 Frctn Loss (ft) 0.40 Cum Volume (acre -ft) 207.17 914.95 177.67 C & E Loss (ft) 0.15 Cum SA (acres) 59.58 90.95 86.64 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.47 Element Left OB Channel Right OB Vel Head (ft) 0.47 Wt. n -Val. 0.056 0.045 E.G. Elev (ft) 464.94 Reach Len. (ft) 520.00 590.00 640.00 Crit W.S. (ft) Flow Area (sq ft) 1719.92 2096.07 E.G. Slope (ft /ft) 0.001691 Area (sq ft) 1719.92 2096.07 Q Total (cfs) 16681.00 Flow (cfs) 3776.87 12904.13 Top Width (ft) 864.51 Top Width (ft) 660.40 204.12 Vel Total (ft /s) 4.37 Avg. Vel. (ft /s) 2.20 6.16 Max Chl Dpth (ft) 25.17 Hydr. Depth (ft) 2.60 10.27 Conv. Total (cfs) 405655.4 Conv. (cfs) 91847.5 313808.0 Length Wtd. (ft) 582.45 Wetted Per. (ft) 660.99 217.12 Min Ch E1 (ft) 439.30 Shear (lb /sq ft) 0.27 1.02 Alpha 1.59 Stream Power (lb /ft s) 0.60 6.27 Frctn Loss (ft) 0.44 Cum Volume (acre -ft) 393.89 1330.17 726.74 C & E Loss (ft) 0.17 Cum SA (acres) 75.13 122.45 182.18 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 34260 INPUT Description: CROSS SECTIO Station Elevation Data num= Sta Elev Sta Elev 0 470 0 465 1000 452 1037.5 451.5 1280 461 1291 460 1337 440 1340 439 1363 445 1372 450 1445 462 1472 463 1810.5 464.5 2230 465.5 32 Sta Elev 853 465 1075 452 1304 455 1345 438.8 1381 455 1520 464 Sta 868 1166.4 1319 1350 1392 1620 Elev 461.2 453 450 439 460 461 Sta Elev 900.8 453 1201 461.64 1328 445 1357 440 1415 461 1800 461 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 0 .055 1201 .06 1280 .045 1392 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr 868 1520 830 790 250 .3 Blocked Obstructions num= 1 Sta L Sta R Elev 1660 2230 CROSS SECTION OUTPUT Profile 42 -year ultimate Proposed Condition HEC -RAS Model - Page 17 Expan. .5 W.S. Elev (ft) 458.01 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n -Val. 0.050 E.G. Elev (ft) 458.08 Reach Len. (ft) 830.00 790.00 250.00 Crit W.S. (ft) Flow Area (sq ft) 2572.23 E.G. Slope (ft /ft) 0.000427 Area (sq ft) 2572.23 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 397.15 Top Width (ft) 397.15 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 2.19 Max Chl Dpth (ft) 19.21 Hydr. Depth (ft) 6.48 Conv. Total (cfs) 273248.5 Conv. (cfs) 273248.5 Length Wtd. (ft) 790.00 Wetted Per. (ft) 407.66 Min Ch E1 (ft) 438.80 Shear (lb /sq ft) 0.17 Alpha 1.00 Stream Power (lb /ft s) 0.37 Frctn Loss (ft) 0.37 Cum Volume (acre -ft) 207.17 889.80 177.67 C & E Loss (ft) 0.03 Cum SA (acres) 59.58 87.46 86.64 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 464.20 Element Left OB Channel Right OB Vel Head (ft) 0.13 Wt. n -Val. 0.055 0.051 0.055 E.G. Elev (ft) 464.33 Reach Len. (ft) 830.00 790.00 250.00 Crit W.S. (ft) Flow Area (sq ft) 17.79 5717.48 298.27 E.G. Slope (ft /ft) 0.000421 Area (sq ft) 17.79 5717.48 298.27 Q Total (cfs) 16681.00 Flow (cfs) 12.66 16398.75 269.59 Top Width (ft) 803.85 Top Width (ft) 11.85 652.00 140.00 Vel Total (ft /s) 2.76 Avg. Vel. (ft /s) 0.71 2.87 0.90 Max Chl Dpth (ft) 25.40 Hydr. Depth (ft) 1.50 8.77 2.13 Conv. Total (cfs) 813047.9 Conv. (cfs) 617.0 799290.9 13139.9 Length Wtd. (ft) 751.19 Wetted Per. (ft) 12.22 664.26 143.25 Min Ch El (ft) 438.80 Shear (lb /sq ft) 0.04 0.23 0.05 Alpha 1.06 Stream Power (lb /ft s) 0.03 0.65 0.05 Frctn Loss (ft) 0.37 Cum Volume (acre -ft) 383.52 1277.26 724.55 C & E Loss (ft) 0.01 Cum SA (acres) 71.12 116.65 181.15 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33470 INPUT Description: CROSS SECTION 33470 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. ELIMINATED GROUND POINTS AT SECTION 33470. SOUTH OF 2770. TO BETTER MODEL EXPANDING FLOW FROM UPSTREAM REACH AT HIGH DISCHARGES. Proposed Condition HEC -RAS Model - Page 18 Station Elevation Data num= 38 Left OB Channel Right OB Vel Head (ft) Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev Reach Len. (ft) 0 470 0 465 958 465 959 465 960 465 4043.85 976 459.72 1010 460 1135 460.2 1220 453 1310 462 Q Total (cfs) 1360 462 1382 461 1391 460 1419 455 1432 450 Top Width (ft) 1432 445 1460 440 1465 439 1475 439.5 1485 439 3.35 1491 440 1510 445 1520 450 1534 455 1565 460 Conv. Total (cfs) 1580 461 1592 462 1603 463 1609 460 1880 460 Wetted Per. (ft) 1930 461 2040 461 2198 461 2375 461 2550 460.1 0.30 2561 463.8 2990 464.8 3160 465.2 0.19 1.00 0.18 Frctn Loss (ft) Manning's n Values Cum Volume (acre -ft) num= 4 719.41 C & E Loss (ft) 0.00 Cum SA (acres) Sta n Val Sta n Val Sta n Val Sta n Val 0 .055 1310 .06 1360 .045 1603 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1135 1603 315 325 260 .3 .5 Blocked Obstructions num= 1 Sta L Sta R Elev 2030 3160 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 457.53 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.045 E.G. Elev (ft) 457.69 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 1767.79 E.G. Slope (ft /ft) 0.000523 Area (sq ft) 1767.79 Q Total (cfs) 5645.00 Flow (cfs) 5645.00 Top Width (ft) 243.61 Top Width (ft) 243.61 Vel Total (ft /s) 3.19 Avg. Vel. (ft /s) 3.19 Max Chl Dpth (ft) 18.53 Hydr. Depth (ft) 7.26 Conv. Total (cfs) 246919.2 Conv. (cfs) 246919.2 Length Wtd. (ft) 325.00 Wetted Per. (ft) 253.73 Min Ch E1 (ft) 439.00 Shear (lb /sq ft) 0.23 Alpha 1.00 Stream Power (lb /ft s) 0.73 Frctn Loss (ft) 0.19 Cum Volume (acre -ft) 207.17 850.45 177.67 C & E Loss (ft) 0.03 Cum SA (acres) 59.58 81.65 86.64 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.81 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 0.055 0.047 0.055 E.G. Elev (ft) 463.96 Reach Len. (ft) 315.00 325.00 260.00 Crit W.S. (ft) Flow Area (sq ft) 623.13 4043.85 1492.20 E.G. Slope (ft /ft) 0.000567 Area (sq ft) 623.13 4043.85 1492.20 Q Total (cfs) 16681.00 Flow (cfs) 945.71 13536.03 2199.26 Top Width (ft) 1066.39 Top Width (ft) 171.39 468.00 427.00 Vel Total (ft /s) 2.71 Avg. Vel. (ft /s) 1.52 3.35 1.47 Max Chl Dpth (ft) 24.81 Hydr. Depth (ft) 3.64 8.64 3.49 Conv. Total (cfs) 700312.4 Conv. (cfs) 39703.5 568278.2 92330.7 Length Wtd. (ft) 318.63 Wetted Per. (ft) 172.05 479.07 430.53 Min Ch El (ft) 439.00 Shear (lb /sq ft) 0.13 0.30 0.12 Alpha 1.30 Stream Power (lb /ft s) 0.19 1.00 0.18 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 377.42 1188.74 719.41 C & E Loss (ft) 0.00 Cum SA (acres) 69.37 106.49 179.53 Proposed Condition HEC -RAS Model - Page 19 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 33145 INPUT Description: CROSS SECTION 33145 FROM BROCKETTE, DAVIS AND DRAKE PROPOSED MODEL. MODIFIED FOR GRADING IN CITY PARK. BEGIN SEPARA Elev Sta Elev 2315 Station Elevation Data num= 39 451.75 Sta Elev Sta Elev Sta Elev 825 470 825 465 2305.9 465 2390 460.64 2420.6 453 2485 452 2620 453 2660 463 2752 463 2795 460 2810 455 2825 450 2852 439 2862 438.4 2870 439 2898 450 2903 455 2930 460 2960 463• 2969 463 3005 462 3800 460 4300 460 4310.8 463.6 Manning's n Values 207.17 num= 5 Cum SA (acres) Sta n Val Sta n Val Sta n Val 825 .05 2305.9 .055 2420.6 .06 Bank Sta: Left Right Lengths: Left Channel 2390 2960 385 420 Blocked Obstructions num= 1 Sta Elev Sta Elev 2315 460.33 2350.1 460.55 2515 451.75 2545 452 2779 462 2789 461 2835 445 2849 440 2878 440 2889 445 2938 461 2951 462 3039 461 3750 461 4435 469 Area (sq ft) Top Width (ft) Sta n Val Sta 2752 .045 2960 Right Coeff Contr. 290 .3 Sta L Sta R Elev this cross - section. 3250 4435 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 457.37 Element Left OB Vel Head (ft) 0.09 Wt. n -Val. 0.15 E.G. Elev (ft) 457.46 Reach Len. (ft) 385.00 Crit W.S. (ft) Reach Len. (ft) Flow Area (sq ft) 420.00 E.G. Slope (ft /ft) 0.000687 Area (sq ft) 241.16 Q Total (cfs) 5645.00 Flow (cfs) Area (sq ft) Top Width (ft) 347.25 Top Width (ft) 16681.00 Vel Total (ft /s) 2.46 Avg. Vel. (ft /s) Top Width (ft) Max Chl Dpth (ft) 18.97 Hydr. Depth (ft) 570.00 Conv. Total (cfs) 215357.1 Conv. (cfs) 1.55 Length Wtd. (ft) 413.35 Wetted Per. (ft) Hydr. Depth (ft) Min Ch E1 (ft) 438.40 Shear (lb /sq ft) 597818.5 Alpha 1.00 Stream Power (lb /ft s) Length Wtd. (ft) Frctn Loss (ft) 0.36 Cum Volume (acre -ft) 207.17 C & E Loss (ft) 0.05 Cum SA (acres) 59.58 n Val .055 Expan. .5 Channel 0.055 420.00 2297.13 2297.13 5645.00 347.25 2.46 6.62 215357.1 356.52 0.28 0.68 835.28 79.44 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.60 Element Left OB Channel Vel Head (ft) 0.15 Wt. n -Val. 0.055 0.054 E.G. Elev (ft) 463.74 Reach Len. (ft) 385.00 420.00 Crit W.S. (ft) Flow Area (sq ft) 241.16 4893.21 E.G. Slope (ft /ft) 0.000779 Area (sq ft) 241.16 4893.21 Q Total (cfs) 16681.00 Flow (cfs) 372.70 15442.34 Top Width (ft) 941.37 Top Width (ft) 81.37 570.00 Vel Total (ft /s) 2.88 Avg. Vel. (ft /s) 1.55 3.16 Max Chl Dpth (ft) 25.20 Hydr. Depth (ft) 2.96 8.58 Conv. Total (cfs) 597818.5 Conv. (cfs) 13356.9 553426.9 Length Wtd. (ft) 393.78 Wetted Per. (ft) 82.16 581.34 Min Ch E1 (ft) 438.40 Shear (lb /sq ft) 0.14 0.41 Alpha 1.13 Stream Power (lb /ft s) 0.22 1.29 Right OB 290.00 177.67 86.64 Right OB 0.055 290.00 664.75 664.75 865.96 290.00 1.30 2.29 31034.7 292.63 0.11 0.14 Proposed Condition HEC -RAS Model - Page 20 Frctn Loss (ft) 0.26 Cum Volume (acre -ft) 374.29 1155.40 712.98 C & E Loss (ft) 0.00 Cum SA (acres) 68.46 102.62 177.39 Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32725 INPUT Description: CROSS SECTIO Station Elevation Data Sta Elev- Sta 0 470 0 1285 461 1568 1940 463 1960 2025 440 2030 2070 445 2080 2165 461 2300 3350 459 3605 3670 459 3695.5 Manning's n Values Sta n Val Sta 0 .05 1273 3670 .05 Bank Sta: Left Right 1940 2150 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 37 Right OB 0.060 0.045 0.055 380.00 Elev Sta Elev Sta Elev Sta Elev 465 90 464 180 465 1273 465 461 1592 453 1842 453 1895 464 460 1981 455 2002 450 2018 445 439 2040 438.2 2050 439 2053 440 450 2090 455 2124 460 2150 461 470 2700 470 2805 470 2885 470 455 3615 452 3628 455 3632 459 467.5 num= 6 n Val Sta n Val Sta n Val Sta n Val .055 1568 .06 1940 .045 2150 .055 Lengths: Left Channel Right 380 420 520 Profile #2 -year ultimate 456.78 Element 0.27 Wt. n -Val. 457.05 Reach Len. (ft) Flow Area (sq ft) 0.001057 Area (sq ft) 7870.00 Flow (cfs) 546.69 Top Width (ft) 3.26 Avg. Vel. (ft /s) 18.58 Hydr. Depth (ft) 242071.1 Conv. (cfs) 417.74 Wetted Per. (ft) 438.20 Shear (lb /sq ft) 1.61 Stream Power (lb /ft s) 0.98 Cum Volume (acre -ft) 0.50 Cum SA (acres) Coeff Contr. Expan. .3 .5 Left OB Channel Right OB 0.060 0.045 0.055 380.00 420.00 520.00 1001.87 1236.41 178.52 1001.87 1236.41 178.52 1884.46 5801.18 184.36 279.58 128.62 138.49 1.88 4.69 1.03 3.58 9.61 1.29 57963.5 178436.9 5670.7 280.58 135.32 140.03 0.24 0.60 0.08 0.44 2.83 0.09 202.74 818.25 177.08 58.34 77.15 86.18 Warning - Divided flow computed for this cross- section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 463.34 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.060 0.045 0.055 E.G. Elev (ft) 463.48 Reach Len. (ft) 380.00 420.00 520.00 Proposed Condition HEC-RAS Model - Page 21 Crit W.S. (ft) 453.65 Flow Area (sq ft) 3669.97 2366.14 2537.82 E.G. Slope (ft /ft) 0.000581 Area (sq ft) 3669.97 2366.14 2537.82 Q Total (cfs) 22468.00 Flow (cfs) 8609.32 9246.07 4612.61 Top Width (ft) 1406.12 Top Width (ft) 629.33 210.00 566.79 Vel Total (ft /s) 2.62 Avg. Vel. (ft /s) 2.35 3.91 1.82 Max Chl Dpth (ft) 25.14 Hydr. Depth (ft) 5.83 11.27 4.48 Conv. Total (cfs) 931990.0 Conv. (cfs) 357121.3 383534.2 191334.5 Length Wtd. (ft) 430.04 Wetted Per. (ft) 632.07 217.55 570.10 Min Ch E1 (ft) 438.20 Shear (lb /sq ft) 0.21 0.39 0.16 Alpha 1.32 Stream Power (lb /ft s) 0.49 1.54 0.29 Frctn Loss (ft) 0.66 Cum Volume (acre -ft) 357.01 1120.40 702.31 C & E Loss (ft) 0.88 Cum SA (acres) 65.32 98.86 174.54 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32305 INPUT Description: X3 FROM 32305 -34260 REFLECT INEFFECTIVE FLOW AREAS IN ANDREW BROWN PK. BEGIN WITH M 453.65 Element Left OB Channel Right OB Vel Head (ft) 1.92 Wt. n -Val. Station Elevation Data num= 43 455.57 Reach Len. (ft) 55.00 55.00 55.00 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 50 470 50 467 135 466 220 465 1323 465 1335 461 1740 461 1825 462 1890 463 1975 464 2045 465 2110 465 2125 464 2140 463 2160 460 2175 455 2204 450 2218 445 2225 440 2232 437.7 2239 438 2245 440 2253 445 2263 450 2281 455 2325 470 3050 470 3140 460 3180 459 3200 458 3218 457 3265 455 3283 452 3289 451 3292 451 3308 452 3329 455 3350 459 3360 460 3369 461 3400 462 3415 462 3615 464 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 50 .05 1323 .055 1740 .06 2110 .045 2325 .065 3415 .05 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2110 2325 55 55 55 .5 .7 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.65 Element Left OB Channel Right OB Vel Head (ft) 1.92 Wt. n -Val. 0.045 0.065 E.G. Elev (ft) 455.57 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) Flow Area (sq ft) 679.72 73.02 E.G. Slope (ft /ft) 0.009028 Area (sq ft) 679.72 73.02 Q Total (cfs) 7870.00 Flow (cfs) 7656.73 213.26 Top Width (ft) 139.80 Top Width (ft) 93.33 46.47 Vel Total (ft /s) 10.46 Avg. Vel. (ft /s) 11.26 2.92 Max Chl Dpth (ft) 15.95 Hydr. Depth (ft) 7.28 1.57 Conv. Total (cfs) 82826.7 Conv. (cfs) 80582.2 2244.5 Length Wtd. (ft) 55.00 Wetted Per. (ft) 99.92 46.84 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 3.83 0.88 Alpha 1.13 Stream Power (lb /ft s) 43.19 2.57 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 809.01 175.57 C & E Loss (ft) 0.81 Cum SA (acres) 57.13 76.08 85.08 Proposed Condition HEC-R4S Model - Page 22 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.87 Element Left OB Channel Right OB Vel Head (ft) 3.07 Wt. n -Val. 0.020 0.045 0.065 E.G. Elev (ft) 461.95 Reach Len. (ft) 55.00 55.00 55.00 Crit W.S. (ft) 85.52 Flow Area (sq ft) 0.000935 1269.22 602.22 E.G. Slope (ft /ft) 0.010720 Area (sq ft) Flow (cfs) 1269.22 602.22 Q Total (cfs) 22468.00 Flow (cfs) 19127.32 3340.68 Top Width (ft) 295.79 Top Width (ft) 128.98 166.81 Vel Total (ft /s) 12.01 Avg. Vel. (ft /s) 15.07 5.55 Max Chl Dpth (ft) 21.17 Hydr. Depth (ft) 9.84 3.61 Conv. Total (cfs) 217003.4 Conv. (cfs) 184738.0 32265.4 Length Wtd. (ft) 55.00 Wetted Per. (ft) 137.15 167.84 Min Ch E1 (ft) 437.70 Shear (lb /sq ft) 6.19 2.40 Alpha 1.37 Stream Power (lb /ft s) 93.34 13.32 Frctn Loss (ft)- 0.24 Cum Volume (acre -ft) 341.00 1102.88 683.57 C & E Loss (ft) 0.62 Cum SA (acres) 62.57 97.23 170.16 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32230 INPUT Description: This is a REPEATED section. Station Elevation Data num= 62 Sta Elev Sta Elev Sta 900 472 1310 467 1700 2201 456.5 2221 456.5 2222 2610 460.5 2611 456.5 2635 3380 465 3381 460 3390.5 3432.01 463 3434.99 463 3435 3495 445 3495.01 463 3497.99 3539.5 461.5 3550 460 3552 3880 463.6 3960 464 4190 4340 463.5 4365 452.8 4365 4380 449.9 4389 451.5 4396 4397 455.2 4411 463.5 4411 4534 465.7 4634 465.1 4734 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta 900 .055 3390.5 .025 3539.5 Bank Sta: Left Right Lengths: Left 3390.5 3539.5 50 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R 900 3050 470 6180 5734 Elev 462 461.5 460.5 461.5 445 463 465 466 465.4 455.2 465.4 464 n Val .055 'hannel 50 Elev 470 Sta 2000 2430 3000 3425 3455 3498 3600 4340 4366 4396 4411 4834 Sta 4366 Right 50 Elev Sta Elev 460.5 2200 461.5 459.5 2520 459.5 461 3280 462 450 3432 446.5 435 3475 435 446.5 3505 450 466 3740 464 466.9 4340 465.4 465.4 4366 450.7 465.4 4397 465.4 466.9 4434 466.8 463.2 4934 463.5 n Val Sta n Val .02 4411 .05 Coeff Contr. Expan. .5 .7 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.88 Element Left OB Channel Right OB Vel Head (ft) 0.76 Wt. n -Val. 0.025 0.020 E.G. Elev (ft) 454.64 Reach Len. (ft) 0.00 0.00 0.00 Crit W.S. (ft) 446.43 Flow Area (sq ft) 1057.06 85.52 E.G. Slope (ft /ft) 0.000935 Area (sq ft) 1057.06 85.52 Q Total (cfs) 7870.00 Flow (cfs) 7500.96 369.04 Proposed Condition HEC -RAS Model - Page 23 Top Width (ft) 127.35 Top Width (ft) 97.31 30.04 Vel Total (ft /s) 6.89 Avg. Vel. (ft /s) 7.10 4.32 Max Chl Dpth (ft) 18.88 Hydr. Depth (ft) 10.86 2.85 Conv. Total (cfs) 257426.4 Conv. (cfs) 245355.2 12071.1 Length Wtd. (ft) 0.00 Wetted Per. (ft) 136.98 35.28 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.45 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.20 0.61 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 198.37 807.91 175.47 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 75.96 85.03 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.89 Element Left OB Channel Right OB Vel Head (ft) 2.19 Wt. n -Val. Deck /Roadway Width 0.025 0.021 E.G. Elev (ft) 461.09 Reach Len. (ft) 0.00 0.00 0.00 Crit W.S. (ft) 455.17 Flow Area (sq ft) 1620.29 287.81 E.G. Slope (ft /ft) 0.002397 Area (sq ft) = 1620.29 287.81 Q Total (cfs) 22468.00 Flow (cfs) 19719.30 2748.70 Top Width (ft) 177.87 Top Width (ft) 127.40 50.47 Vel Total (ft /s) 11.78 Avg. Vel. (ft /s) 12.17 9.55 Max Chl Dpth (ft) 23.89 Hydr. Depth (ft) Hi Cord Lo Cord 12.72 5.70 Conv. Total (cfs) 458910.1 Conv. (cfs) Lo Cord 402767.7 56142.4 Length Wtd. (ft) 0.00 Wetted Per. (ft) 463 189.44 75.50 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 464 464 1.28 0.57 Alpha 1.02 Stream Power (lb /ft s) 464 15.58 5.45 Frctn Loss (ft) 0.00 Cum Volume (acre -ft) 341.00 1101.05 683.01 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 97.06 170.02 Warning - Divided flow computed for this cross - section. BRIDGE RIVER: RIVER -1 REACH: Reach -1 RS: 32215 INPUT Description: Bridge #1 Distance from Upstream XS = 0 Deck /Roadway Width = 50 Weir Coefficient = 2.6 Bridge Deck /Roadway Skew = Upstream Deck /Roadway Coordinates num= 9 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Upstream Bridge Cross Section Data Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. 3390.5 3539.5 .5 .7 Proposed Condition KEC-RAS Model - Page 24 Blocked Obstructions num= 2 Selected Low Flow Methods = Energy Sta L Sta R Elev Sta L Sta R Elev Elev Sta Elev 900 3050 470 6180 5734 470 1700 462 2000 Downstream Deck /Roadway Coordinates 2201 456.5 2221 456.5 2222 num= 9 459.5 2520 459.5 2610 460.5 2611 456.5 Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord Sta Hi Cord Lo Cord 3380 465 463 3552 465 463 3600 466 466 3740 464 464 3880 463.6 463.6 3960 464 464 4190 466 466 4340 466.9 465.4 4411 466.8 465.4 Downstream Bridge Cross Section Data Station Elevation Data num= 62 Selected Low Flow Methods = Energy Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9• 4389 451.5 4396 455.2 4396 465.4 4397 465.4 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 5014 464.4 5734 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 Bank Sta: Left Right Coeff Contr. Expan. 3390.5 3539.5 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 900 3050 470 5734 5734 470 Upstream Embankment side slope = 0 horiz. to 1.0 vertical Downstream Embankment side slope = 0 horiz. to 1.0 vertical Maximum allowable submergence for weir flow = .95 Elevation at which weir flow begins = Energy head used in spillway design = Spillway height used in design = Weir crest shape = Broad Crested Number of Bridge Coefficient Sets = 1 Low Flow Methods and Data Energy Selected Low Flow Methods = Energy High Flow Method Energy Only Additional Bridge Parameters Add Friction component to Momentum Do not add Weight component to Momentum Class B flow critical depth computations use critical depth inside the bridge at the downstream end Criteria to check for pressure flow = Upstream water surface BRIDGE OUTPUT Profile #2 -year ultimate Opening : Bridge #1 E.G. US. (ft) 454.64 Element Inside BR US Inside BR DS W.S. US. (ft) 453.88 E.G. Elev (ft) 454.64 454.59 Q Total (cfs) 7870.00 W.S. Elev (ft) 453.88 453.82 Q Bridge (cfs) 7870.00 Crit W.S. (ft) 446.42 446.40 Q Weir (cfs) Max Chl Dpth (ft) 18.88 18.82 Weir Sta Lft (ft) Vel Total (ft /s) 6.89 6.94 Weir Sta Rgt (ft) Flow Area (sq ft) 1142.59 1134.52 Weir Submerg Froude # Chl 0.38 0.38 Proposed Condition HEC -R4S Model - Page 25 Weir Max Depth (ft) 461.09 Specif Force (cu ft) 9718.09 9657.96 Min Top Rd (ft) 461.18 Hydr Depth (ft) 8.97 8.95 Min E1 Prs (ft) 465.40 W.P. Total (ft) 172.25 171.42 Delta EG (ft) 0.05 Conv. Total (cfs) 257426.4 255153.8 Delta WS (ft) 0.06 Top Width (ft) 127.35 126.70 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.05 0.00 BR Open Vel (ft /s) 6.94 C & E Loss (ft) 0.01 0.00 Coef of Q 459.5 Shear Total (lb /sq ft) 0.39 0.39 Br Sel Mthd Energy only Power Total (lb /ft s) 2.67 2.73 BRIDGE OUTPUT Profile #100 -year ultimat Opening : Bridge #1 E.G. US. (ft) 461.09 Element Inside BR US Inside BR DS W.S. US. (ft) 458.89 E.G. Elev (ft) 461.09 460.88 Q Total (cfs) 22468.00 W.S. Elev (ft) 458.89 458.54 Q Bridge (cfs) 22468.00 Crit W.S. (ft) 455.16 455.15 Q Weir (cfs) 1310 Max Chl Dpth (ft) 23.89 23.54 Weir Sta Lft (ft) 460.5 Vel Total (ft /s) 11.78 12.17 Weir Sta Rgt (ft) 2221 Flow Area (sq ft) 1908.10 1846.22 Weir Submerg 459.5 Froude # Chl 0.60 0.62 Weir Max Depth (ft) 2611 Specif Force (cu ft) 23824.68 23442.51 Min Top Rd (ft)- 461.18 Hydr Depth (ft) 10.73 10.59 Min E1 Prs (ft) 465.40 W.P. Total (ft) 264.94 258.19 Delta EG (ft) 0.20 Conv. Total (cfs) 458910.1 441967.4 Delta WS (ft) 0.35 Top Width (ft) 177.87 174.35 BR Open Area (sq ft) 2928.78 Frctn Loss (ft) 0.12 0.00 BR Open Vel (ft /s) 12.17 C & E Loss (ft) 0.08 0.00 Coef of Q 446.5 Shear Total (lb /sq ft) 1.08 1.15 Br Sel Mthd Energy only Power Total (lb /ft s) 12.69 14.04 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32200 INPUT Description: DENTON TAP ROAD BRIDGES - FROM KIMLEY -HORN MODEL. W/n VALUE CHANGES -AHH Station Elevation Data num= 62 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 900 472 1310 467 1700 462 2000 460.5 2200 461.5 2201 456.5 2221 456.5 2222 461.5 2430 459.5 2520 459.5 2610 460.5 2611 456.5 2635 460.5 3000 461 3280 462 3380 465 3381 460 3390.5 461.5 3425 450 3432 446.5 3432.01 463 3434.99 463 3435 445 3455 435 3475 435 3495 445 3495.01 463 3497.99 463 3498 446.5 3505 450 3539.5 461.5 3550 460 3552 465 3600 466 3740 464 3880 463.6 3960 464 4190 466 4340 466.9 4340 465.4 4340 463.5 4365 452.8 4365 465.4 4366 465.4 4366 450.7 4380 449.9 4389 451.5 4396 455.2 4396 465.4 4397 465.4 Proposed Condition HEC -R4S Model - Page 26 4397 455.2 4411 463.5 4411 465.4 4411 466.9 4434 466.8 Right OB 4534 465.7 4634 465.1 4734 464 4834 463.2 4934 463.5 0.021 5014 464.4 5734 466 Reach Len. (ft) 50.00 50.00 50.00 Manning's n Values num= 5 1575.89 270.32 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 270.32 900 .055 3390.5 .025 3539.5 .055 4366 .02 4411 .05 2655.78 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 49.06 3390.5 3539.5 12.17 50 50 50 .5 .7 9.82 Blocked Obstructions num= 2 12.58 5.51 Sta L Sta R Elev Sta L Sta R Elev 389725.7 52241.7 900 3050 470 5734 5734 470 185.68 72.51 CROSS SECTION OUTPUT Profile #2 -year ultimate 435.00 Shear (lb /sq ft) W.S. Elev (ft) 453.82 Element Left OB Channel Right OB Vel Head (ft) 0.77 Wt. n -Val. 0.11 0.025 0.020 E.G. Elev (ft) 454.59 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) 169.96 Flow Area (sq ft) 1050.89 83.62 E.G. Slope (ft /ft) 0.000951 Area (sq ft) 1050.89 83.62 Q Total (cfs) 7870.00 Flow (cfs) 7508.98 361.02 Top Width (ft) 126.70 Top Width (ft) 96.93 29.77 Vel Total (ft/9) 6.94 Avg. Vel. (ft /s) 7.15 4.32 Max Chl Dpth (ft) 18.82 Hydr. Depth (ft) 10.84 2.81 Conv. Total (cfs) 255153.8 Conv. (cfs) 243449.2 11704.6 Length Wtd. (ft) 50.00 Wetted Per. (ft) 136.57 34.85 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 0.46 0.14 Alpha 1.03 Stream Power (lb /ft s) 3.27 0.62 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 806.70 175.38 C & E Loss (ft) 0.22 Cum SA (acres) 57.13 75.85 84.99 Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.54 Element Left OB Channel Right OB Vel Head (ft) 2.34 Wt. n -Val. 0.025 0.021 E.G. Elev (ft) 460.88 Reach Len. (ft) 50.00 50.00 50.00 Crit W.S. (ft) Flow Area (sq ft) 1575.89 270.32 E.G. Slope (ft /ft) 0.002584 Area (sq ft) 1575.89 270.32 Q Total (cfs) 22468.00 Flow (cfs) 19812.22 2655.78 Top Width (ft) 174.35 Top Width (ft) 125.29 49.06 Vel Total (ft /s) 12.17 Avg. Vel. (ft /s) 12.57 9.82 Max Chl Dpth (ft) 23.54 Hydr. Depth (ft) 12.58 5.51 Conv. Total (cfs) 441967.4 Conv. (cfs) 389725.7 52241.7 Length Wtd. (ft) 50.00 Wetted Per. (ft) 185.68 72.51 Min Ch E1 (ft) 435.00 Shear (lb /sq ft) 1.37 0.60 Alpha 1.02 Stream Power (lb /ft s) 17.22 5.91 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 1099.22 682.69 C & E Loss (ft) 0.40 Cum SA (acres) 62.57 96.92 169.96 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 32150 INPUT Description: FROM KIMLEY -HORN MODEL. Proposed Condition HEC-RAS Mode! - Page 27 END AHH CROSS SECTION Station Elevation Data num= 40 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 470 1600 461 1800 461 2000 458 2100 459 2200 457 2220 457 2320 459 2620 456.5 2640 455 2650 457 2680 456.5 2900 459 3100 459 3200 460 3300 461.5- 3400 460.5 3427 437 3440 437 3470 437 3475 437 3489 437 3505 447 3525 460 3650 461.5 3920 458 3980 459 4240 458 4280 456 4350 456 4350 452 4380 453.5 4400 457.5 4520 458 4720 461 5110 461 5200 462 5460 462 5800 464 6180 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 3400 .035 3525 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 3400 3525 160 170 180 .5 .7 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 3040 470 6180 6180 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.87 Element Left OB Channel Right OB Vel Head (ft) 0.46 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 454.34 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1436.03 34.05 E.G. Slope (ft /ft) 0.000600 Area (sq ft) 1436.03 34.05 Q Total (cfs) 7870.00 Flow (cfs) 7847.36 22.64 Top Width (ft) 139.83 Top Width (ft) 107.96 31.87 Vel Total (ft /s) 5.35 Avg. Vel. (ft /s) 5.46 0.66 Max Chl Dpth (ft) 16.87 Hydr. Depth (ft) 13.30 1.07 Conv. Total (cfs) 321351.3 Conv. (cfs) 320427.0 924.3 Length Wtd. (ft) 171.13 Wetted Per. (ft) 119.18 33.82 Min Ch E1 (ft) 437.00 Shear (lb /sq ft) 0.45 0.04 Alpha 1.04 Stream Power (lb /ft s) 2.47 0.03 Frctn Loss (ft) 0.20 Cum Volume (acre -ft) 198.37 805.28 175.31 C & E Loss (ft) 0.09 Cum SA (acres) 57.13 75.73 84.96 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.61 Element Left OB Channel Right OB Vel Head (ft) 1.77 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 460.38 Reach Len. (ft) 160.00 170.00 180.00 Crit W.S. (ft) Flow Area (sq ft) 1977.21 673.07 E.G. Slope (ft /ft) 0.001839 Area (sq ft) 1977.21 673.07 Q Total (cfs) 22468.00 Flow (cfs) 21541.81 926.19 Top Width (ft) 682.35 Top Width (ft) 120.68 561.67 Vel Total (ft /s) 8.48 Avg. Vel. (ft /s) 10.90 1.38 Max Chl Dpth (ft) 21.61 Hydr. Depth (ft) 16.38 1.20 Proposed Condition HEC -RAS Model - Page 28 Conv. Total (cfs) 523892.3 Conv. (cfs) 502296.1 21596.2 Length Wtd. (ft) 173.63 Wetted Per. (ft) 135.08 566.17 Min Ch E1 (ft) 1037 461 437.00 Shear (lb /sq ft) 1.68 0.14 Alpha Left OB Channel 1.58 Stream Power (lb /ft s) 18.31 0.19 Frctn Loss (ft) 0.22 Cum Volume (acre -ft) 341.00 1097.18 682.15 C & E Loss (ft) 1.10 Cum SA (acres) 62.57 96.78 169.61 Warning - Divided flow computed for this cross - section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 31335 INPUT Description: Station Elevation Data num= 30 cross sections. Warning - The conveyance Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev in the main channel. 1037 461 1045 460 1065 455 1094 450 1130 438.55 Left OB Channel 1140 438.55 1176 450 1184 455 1193 460 1204 461 377.00 377.00 1228 461 - 1231 460 1250 458 1283 458 1310 455 1530.84 1380 452 1451 451 1514 451 1849 454 2023 455 141.35 2059 456 2090 457.6 2097 455 2103 449 2117 449 10.83 2124 450 2141 456 2168 457 2180 460 2193 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1037 .05 1094 .04 1176 .07 1283 .045 2059 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1037 1204 377 377 344 .1 .3 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 453.40 Element Left OB Channel Right OB Vel Head (ft) 0.65 Wt. n -Val. 0.044 0.049 E.G. Elev (ft) 454.05 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 848.53 746.65 E.G. Slope (ft /ft) 0.003033 Area (sq ft) 848.53 746.65 Q Total (cfs) 7870.00 Flow (cfs) 6113.39 1756.61 Top Width (ft) 577.21 Top Width (ft) 107.18 470.03 Vel Total (ft /s) 4.93 Avg. Vel. (ft /s) 7.20 2.35 Max Chl Dpth (ft) 14.85 Hydr. Depth (ft) 7.92 1.59 Conv. Total (cfs) 142898.0 Conv. (cfs) 111002.8 31895.2 Length Wtd. (ft) 362.85 Wetted Per. (ft) 112.00 472.56 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 1.43 0.30 Alpha 1.71 Stream Power (lb /ft s) 10.34 0.70 Frctn Loss (ft) 0.39 Cum Volume (acre -ft) 198.37 800.82 173.70 C & E Loss (ft) 0.17 Cum SA (acres) 57.13 75.31 83.92 Warning - Divided flow computed for this cross- section. Warning - The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.85 Element Left OB Channel Right OB Vel Head (ft) 0.21 Wt. n -Val. 0.047 0.046 E.G. Elev (ft) 459.06 Reach Len. (ft) 377.00 377.00 344.00 Crit W.S. (ft) Flow Area (sq ft) 1530.84 4989.52 E.G. Slope (ft /ft) 0.000948 Area (sq ft) 1530.84 4989.52 Q Total (cfs) 22468.00 Flow (cfs) 7060.60 15407.40 Top Width (ft) 1074.87 Top Width (ft) 141.35 933.52 Vel Total (ft /s) 3.45 Avg. Vel. (ft /s) 4.61 3.09 Max Chl Dpth (ft) 20.30 Hydr. Depth (ft) 10.83 5.34 Conv. Total (cfs) 729604.4 Conv. (cfs) 229279.2 500325.1 Proposed Condition NEC -RAS Model - Page 29 Length Wtd. (ft) 352.13 Wetted Per. (ft) 148.24 938.18 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.61 0.31 Alpha 1.11 Stream Power (lb /ft s) 2.82 0.97 Frctn Loss (ft) 0.21 Cum Volume (acre -ft) 341.00 1090.33 670.45 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 96.27 166.52 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30958 INPUT Description: Station Elevation Data num= 31 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1048 461 1056 460 1076 455 1093 450 1134 438.55 1142 438.55 1183 450 1192 455 1252 460 1285 462 1298 465.3 1346 450 1362 447 1407 446.2 1469 447 1537 448 1600 449 1746 450 1896 452 1995 453 2024 455• 2058 458 2101 455 2146 455 2157 448 2173 448 2177 450 2196 456 2232 457 2380 459 2504 461 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1048 .05 1093 .04 1183 .07 1346 .045 2024 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1048 1285 303 354 302 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 453.40 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.043 0.046 E.G. Elev (ft) 453.49 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 897.14 2699.10 E.G. Slope (ft /ft) 0.000545 Area (sq ft) 897.14 2699.10 Q Total (cfs) 7870.00 Flow (cfs) 2875.63 4994.37 Top Width (ft) 812.41 Top Width (ft) 107.68 704.73 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 3.21 1.85 Max Chl Dpth (ft) 14.85 Hydr. Depth (ft) 8.33 3.83 Conv. Total (cfs) 337231.6 Conv. (cfs) 123221.7 214009.9 Length Wtd. (ft) 335.40 Wetted Per. (ft) 112.19 708.16 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.27 0.13 Alpha 1.24 Stream Power (lb /ft s) 0.87 0.24 Frctn Loss (ft) 0.27 Cum Volume (acre -ft) 198.37 793.26 160.09 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 74.38 79.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 458.72 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.052 0.046 E.G. Elev (ft) 458.82 Reach Len. (ft) 303.00 354.00 302.00 Crit W.S. (ft) Flow Area (sq ft) 1618.04 7168.03 E.G. Slope (ft /ft) 0.000402 Area (sq ft) 1618.04 7168.03 Q Total (cfs) 22468.00 Flow (cfs) 4005.06 18462.94 Top Width (ft) 1216.03 Top Width (ft) 175.50 1040.53 Vel Total (ft /s) 2.56 Avg. Vel. (ft /s) 2.48 2.58 Max Chl Dpth (ft) 20.17 Hydr. Depth (ft) 9.22 6.89 Conv. Total (cfs) 1121290.4 Conv. (cfs) 199876.8 921413.6 Length Wtd. (ft) 326.39 Wetted Per. (ft) 181.26 1045.98 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 0.22 0.17 Alpha 1.00 Stream Power (lb /ft s) 0.55 0.44 Proposed Condition HEC-RAS Mode! - Page 30 Frctn Loss (ft) 0.24 Cum Volume (acre -ft) 341.00 1076.71 622.44 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 94.89 158.73 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30604 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 312+30 Station Elevation Data Sta Elev St 1014 461 1022 1141 438.55 118 1244 450 124 1295 446 1297 1350 461 1454 1473 446 1488 1582 461 1601 1751 452 1796 1876 450 1885 2048 456 2191 Manning's n Values Sta n Val Sta 1014 .05 1063 1601 .045 1831 Bank Sta: Left Right 1014 1350 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Length Wtd. (ft) Min Ch E1 (ft) Alpha Frctn Loss (ft) C & E Loss (ft) num= 49 Sta 7 450 1211 455 1220 455.8 1230 455 7 449 1273 448 1276 447 1282 446 447 1301 450 1316 455 1340 460 461 1457 460 1464 455 1469 450 446 1496 450 1506 455 1527 460 461 1618 460 1653 455 1730 452 455 1831 458 1863 458 1867 455 447 1895 447 1898 450 1917 455 458 2247 459 2395 461 num= 7 n Val Sta n Val Sta n Val Sta n Val .04 1187 .065 1247 .04 1301 .07 .07 Lengths: Left Channel Right 269 220 319 Profile #2 -year ultimate 452.91 Element 0.29 Wt. n -Val. 453.20 Reach Len. (ft) Flow Area (sq ft) 0.001371 Area (sq ft) 7870.00 Flow (cfs) 355.92 Top Width (ft) 4.01 Avg. Vel. (ft /s) 14.36 Hydr. Depth (ft) 212551.8 Conv. (cfs) 230.85 Wetted Per. (ft) 438.55 Shear (lb /sq ft) 1.16 Stream Power (lb /ft s) 0.26 Cum Volume (acre -ft) 0.02 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.069 269.00 220.00 319.00 1615.84 346.58 1615.84 346.58 7234.93 635.07 224.03 131.89 4.48 1.83 7.21 2.63 195400.0 17151.8 230.11 139.29 0.60 0.21 2.69 0.39 198.37 783.05 149.53 57.13 73.03 76.38 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Proposed Condition HEC -RAS Model - Page 31 Elev S Sta E Elev S Sta E Elev S Sta E Elev 460 1 1042 4 455 1 1063 4 450 1 1109 4 438.55 .07 Lengths: Left Channel Right 269 220 319 Profile #2 -year ultimate 452.91 Element 0.29 Wt. n -Val. 453.20 Reach Len. (ft) Flow Area (sq ft) 0.001371 Area (sq ft) 7870.00 Flow (cfs) 355.92 Top Width (ft) 4.01 Avg. Vel. (ft /s) 14.36 Hydr. Depth (ft) 212551.8 Conv. (cfs) 230.85 Wetted Per. (ft) 438.55 Shear (lb /sq ft) 1.16 Stream Power (lb /ft s) 0.26 Cum Volume (acre -ft) 0.02 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.045 0.069 269.00 220.00 319.00 1615.84 346.58 1615.84 346.58 7234.93 635.07 224.03 131.89 4.48 1.83 7.21 2.63 195400.0 17151.8 230.11 139.29 0.60 0.21 2.69 0.39 198.37 783.05 149.53 57.13 73.03 76.38 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Proposed Condition HEC -RAS Model - Page 31 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Proposed Condition HEC -RAS Model - Page 31 W.S. Elev (ft) 458.15 Element Left OB Channel Right OB Vel Head (ft) 0.40 Wt. n -Val. 0.050 0.057 E.G. Elev (ft) 458.55 Reach Len. (ft) 269.00 220.00 319.00 Crit W.S. (ft) Description: Flow Area (sq ft) 3016.03 2114.16 E.G. Slope (ft /ft) 0.001732 Area (sq ft) num= 3016.03 2114.16 Q Total (cfs) 22468.00 Flow (cfs) Sta Elev Sta 17068.12 5399.88 Top Width (ft) 929.75 Top Width (ft) 301.71 628.04 Vel Total (ft /s) 4.38 Avg. Vel. (ft /s) 438.14 5.66 2.55 Max Chl Dpth (ft) 19.60 Hydr. Depth (ft) 1287 10.00 3.37 Conv. Total (cfs) 539913.6 Conv. (cfs) 446 410152.6 129761.0 Length Wtd. (ft) 241.78 Wetted Per. (ft) 1413 459 1447 309.74 640.47 Min Ch E1 (ft) 438.55 Shear (lb /sq ft) 460 1.05 0.36 Alpha 1.35 Stream Power (lb /ft s) 1668 450 1673 5.96 0.91 Frctn Loss (ft) 0.45 Cum Volume (acre -ft) 341.00 1057.88 590.27 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 92.96 152.94 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30384 INPUT Description: Station Elevation Data num= 46 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1045 462 1053 460 1073 455 1095 450 1142 438.14 1178 438.14 1225 450 1246 455 1270 459 1287 460 1307 455 1320 450 1328 446 1333 446 1371 447 1377 450 1391 455 1413 459 1447 460 1481 460.7 1504 460 1570 460 1640 459.8 1650 459 1658 455 1668 450 1673 445 1689 445 1694 450 1697 455 1716 460 1756 460 1788 461.3 1800 461 1815 459 1888 458 1930 455 1951 450 1958 445 1967 445 1977 450 1982 455 2004 458 2077 458 2096 458 2150 460 Manning's n Values num= 9 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1045 .05 1095 .04 1225 .065 1320 .04 1377 .07 1668 .045 1694 .07 1951 .045 1977 .07 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1045 1447 371 357 410 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.69 Element Left OB Channel Right OB Vel Head (ft) 0.23 Wt. n -Val. 0.044 0.045 E.G. Elev (ft) 452.92 Reach Len. (ft) 371.00 357.00 410.00 Crit W.S. (ft) Flow Area (sq ft) 1716.06 360.60 E.G. Slope (ft /ft) 0.000945 Area (sq ft) 1716.06 360.60 Q Total (cfs) 7870.00 Flow (cfs) 6779.78 1090.22 Top Width (ft) 297.64 Top Width (ft) 224.66 72.98 Vel Total (ft /s) 3.79 Avg. Vel. (ft /s) 3.95 3.02 Max Chl Dpth (ft) 14.55 Hydr. Depth (ft) 7.64 4.94 Conv. Total (cfs) 256014.8 Conv. (cfs) 220549.5 35465.2 Length Wtd. (ft) 363.34 Wetted Per. (ft) 230.86 83.49 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.44 0.25 Alpha 1.02 Stream Power (lb /ft s) 1.73 0.77 Frctn Loss (ft) 0.29 Cum Volume (acre -ft) 198.37 774.64 146.94 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 71.90 75.63 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 457.56 Element Left OB Channel Right OB Vel Head (ft) 0.53 Wt. n -Val. 0.049 0.048 E.G. Elev (ft) 458.09 Reach Len. (ft) 371.00 357.00 410.00 Proposed Condition HEC -RAS Model - Page 32 Crit W.S. (ft) num= Flow Area (sq ft) 2994.46 872.01 E.G. Slope (ft /ft) 0.001984 Area (sq ft) 2994.46 872.01 Q Total (cfs) 22468.00 Flow (cfs) 17979.79 4488.22 Top Width (ft) 467.42 Top Width (ft) 306.94 160.48 Vel Total (ft /s) 5.81 Avg. Vel. (ft /s) 6.00 5.15 Max Chl Dpth (ft) 19.42 Hydr. Depth (ft) 9.76 5.43 Conv. Total (cfs) 504441.3 Conv. (cfs) 403674.0 100767.4 Length Wtd. (ft) 370.09 Wetted Per. (ft) 315.56 175.28 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 1.18 0.62 Alpha 1.01 Stream Power (lb /ft s) 7.06 3.17 Frctn Loss (ft) 0.56 Cum Volume (acre -ft) 341.00 1042.70 579.33 C & E Loss (ft) 0.06 Cum SA (acres) 62.57 91.42 150.06 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 30027 INPUT Description: NEW AHHA CROSS SECTION Station Elevation Data num= Sta Elev Sta Elev 1000 465.3 1074 464 1144 460 1182 450 1222 442 1240 438.23 1367 460 1390 458 1494 450 1516 460 1804 454 1816 452 2050 452 2067 454 2242 462 1644 460 Manning's n Values 1787 num= Sta n Val Sta n Val 1000 .05 1182 .04 1644 .045 2134 460 36 Lengths: Left Channel Right 1139 1516 0.044 148 196 299 Sta Elev Sta Elev Sta Elev 1084 463.1 1112 463.1 1139 462 1190 448 1199 446 1210 444 1267 438.23 1314 450 1350 458 1432 450 1444 439.8 1481 439.8 1644 460 1755 458 1787 456 1872 450 1952 449.6 2037 450 2080 456 2104 458 2134 460 6 Sta n Val Sta n Val Sta n Val 1314 .065 1432 .04 1494 .07 Bank Sta: Left Right Lengths: Left Channel Right 1139 1516 0.044 148 196 299 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.43 Element Vel Head (ft) 0.18 Wt. n -Val. E.G. Elev (ft) 452.61 Reach Len. (ft) Crit W.S. (ft) 232.23 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000699 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 472.43 Top Width (ft) Vel Total (ft /s) 3.15 Avg. Vel. (ft /s) Max Chl Dpth (ft) 14.20 Hydr. Depth (ft) Conv. Total (cfs) 297765.7 Conv. (cfs) Length Wtd. (ft) 218.39 Wetted Per. (ft) Min Ch E1 (ft) 438.23 Shear (lb /sq ft) Alpha 1.20 Stream Power (lb /ft s) Frctn Loss (ft) 0.11 Cum Volume (acre -ft) C & E Loss (ft) 0.03 Cum SA (acres) Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.044 0.045 148.00 196.00 299.00 1968.57 533.38 1968.57 533.38 7078.24 791.76 232.23 240.20 3.60 1.48 8.48 2.22 267809.2 29956.5 243.50 240.45 0.35 0.10 1.27 0.14 198.37 759.54 142.74 57.13 70.03 74.16 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat Proposed Condition HEC -RAS Model - Page 33 W.S. Elev (ft) 457.15 Element Left OB Channel Right OB Vel Head (ft) 0.32 Wt. n -Val. Elev 0.049 0.045 E.G. Elev (ft) 457.47 Reach Len. (ft) 148.00 196.00 299.00 Crit W.S. (ft) 1130 Flow Area (sq ft) 460 3241.30 1840.89 E.G. Slope (ft /ft) 0.001176 Area (sq ft) 450 3241.30 1840.89 Q Total (cfs) 22468.00 Flow (cfs) 1296 15858.38 6609.62 Top Width (ft) 631.87 Top Width (ft) 460 306.63 325.24 Vel Total (ft /s) 4.42 Avg. Vel. (ft /s) 1445 4.89 3.59 Max Chl Dpth (ft) 18.92 Hydr. Depth (ft) 439.3 10.57 5.66 Conv. Total (cfs) 655160.7 Conv. (cfs) 1653 462425.9 192734.8 Length Wtd. (ft) 239.53 Wetted Per. (ft) 448.5 320.49 326.06 Min Ch E1 (ft) 438.23 Shear (lb /sq ft) 450 0.74 0.41 Alpha 1.06 Stream Power (lb /ft s) 2266 3.63 1.49 Frctn Loss (ft) 0.17 Cum Volume (acre -ft) 341.00 1017.15 566.57 C & E Loss (ft) 0.05 Cum SA (acres) 62.57 88.90 147.77 Warning - Divided flow computed for this cross- section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29831 INPUT Description: Station Elevation Data Sta Elev Sta 1000 465.3 1038 1155 462 1159 1220 446 1239 1336 450 1345 1402 462.2 1418 1477 450 1490 1594 458 1612 1790 450.29 1807.9 2160 453 2170 2343 460 2343 2401 452.5 2406 2447 461.3 2480 2567 458.1 2586 2760 458 2770 num= 67 12 Left OB Channel Right OB Vel Head (ft) 0.10 Elev Sta Elev Sta Elev Sta Elev 465.3 1085 464 1102 463.2 1130 463.2 460 1182 454 1189 452 1197 450 444 1261 442 1264 438.14 1296 438.14 452 1368 458 1377 460 1388 462 462 1434 460 1445 458 1470 452 439.3 1527 439.3 1528 450 1555 458 456 1653 456 1669 454 1684 452 448.5 2090 448.5 2099 450 2147 450 455 2180 456 2266 459 2266 460 459 2369 458 2389 456 2396 454 454 2414 456 2423 458 2430 460 460 2500 458.1 2510 458 2547 457.8 458 2597 458 2645 459 2707 460 460 Manning's n Values num= 12 Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .05 1182 .04 1418 .065 1477 .04 1528 .07 1653 .045 1807.9 .035 2090 .045 2099 .04 2369 .075 2500 .015 2707 .045 476.13 Vel Total (ft /s) 2.36 Avg. Vel. (ft /s) 2.75 1.84 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1155 1555 132220.2 171 180 197 245.33 .1 .3 Ineffective Flow num= 1 Sta L Sta R Elev 2266 2770 465 Blocked Obstructions num= 1 Sta L Sta R Elev 2266 2343 465 CROSS SECTION OUTPUT Profile 42 -year ultimate W.S. Elev (ft) 452.38 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 0.042 0.036 E.G. Elev (ft) 452.47 Reach Len. (ft) 171.00 180.00 197.00 Crit W.S. (ft) 445.37 Flow Area (sq ft) 1907.35 1432.71 E.G. Slope (ft /ft) 0.000395 Area (sq ft) 1907.35 1432.71 Q Total (cfs) 7870.00 Flow (cfs) 5240.83 2629.17 Top Width (ft) 702.49 Top Width (ft) 226.36 476.13 Vel Total (ft /s) 2.36 Avg. Vel. (ft /s) 2.75 1.84 Max Chl Dpth (ft) 14.24 Hydr. Depth (ft) 8.43 3.01 Conv. Total (cfs) 395779.8 Conv. (cfs) 263559.5 132220.2 Length Wtd. (ft) 183.68 Wetted Per. (ft) 245.33 476.65 Proposed Condition HEC -RAS Model - Page 34 Min Ch E1 (ft) 438.14 Shear (lb /sq ft) 0.19 0.07 Alpha 1.11 Stream Power (lb /ft s) 0.53 0.14 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 198.37 750.82 135.99 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 68.99 71.70 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 457.10 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n -Val. 0.046 0.037 E.G. Elev (ft) 457.26 Reach Len. (ft) 171.00 180.00 197.00 Crit W.S. (ft) 450.78 Flow Area (sq ft) 3143.57 3888.69 E.G. Slope (ft /ft) 0.000458 Area (sq ft) 3143.57 3967.41 Q Total (cfs) 22468.00 Flow (cfs) 10084.73 12383.27 Top Width (ft) 947.95 Top Width (ft) 297.63 650.32 Vel Total (ft /s) 3.19 Avg. Vel. (ft /s) 3.21 3.18 Max Chl Dpth (ft) 18.96 Hydr. Depth (ft) 10.56 6.38 Conv. Total (cfs) 1049466.6 Conv. (cfs) 471051.5 578415.1 Length Wtd. (ft) 188.00 Wetted Per. (ft) 319.07 610.54 Min Ch El (ft) 438.14 Shear (lb /sq ft) 0.28 0.18 Alpha 1.00 Stream Power (lb /ft s) 0.90 0.58 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 1002.78 546.63 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 87.54 144.42 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29651 INPUT Description: Station Elevation Data num= 54 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1147 462 1176 462 1185 460 1224 450 1235 448 1248 446 1266 444 1280 442 1290 438.06 1320 438.06 1365 450 1395 458 1411 460 1440 460.1 1474 460 1490 458 1531 450 1553 438.8 1589 438.9 1598 450 1610 458 1640 458 1648 456 1658 454 1668 452 1709 450 1735 449.3 1775 450 1872 452 1960 451 2075 450 2121 450 2133 451 2148 456 2151 457.1 2175 457.8 2303 459 2303 460 2387 460 2387 459 2420 457.9 2443 457.8 2468 456.5 2533 456.5 2552 456 2565 454 2575 453.9 2577 454 2585 456 2600 458 2631 457.4 2677 458 2735 458.5 2772 460 Manning's n Values num= 11 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1147 .05 1224 .04 1411 .065 1531 .04 1598 .07 1640 .045 2121 .04 2468 .075 2600 .045 2631 .015 2735 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1176 1610 600 527 404 .1 .3 Ineffective Flow num= 1 Sta L Sta R Elev 2193 2772 460 Blocked Obstructions num= 1 Sta L Sta R Elev 2303 2387 465 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 452.20 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 452.38 Reach Len. (ft) 600.00 527.00 404.00 Crit W.S. (ft) 444.94 Flow Area (sq ft) 2032.08 716.50 E.G. Slope (ft /ft) 0.000607 Area (sq ft) 2032.08 716.50 Q Total (cfs) 7870.00 Flow (cfs) 7094.70 775.30 Proposed Condition HEC -RAS Model - Page 35 Top Width (ft) 709.08 Top Width (ft) 451.84 Element Left OB 239.45 469.63 Vel Total (ft /s) 2.86 Avg. Vel. (ft /s) Elev 3.49 1.08 Max Chl Dpth (ft) 14.14 Hydr. Depth (ft) Flow Area (sq ft) 8.49 1.53 Conv. Total (cfs) 319347.3 Conv. (cfs) 287887.1 31460.2 Length Wtd. (ft) 520.94 Wetted Per. (ft) 251.77 469.98 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.31 0.06 Alpha 1.35 Stream Power (lb /ft s) 1.07 0.06 Frctn Loss (ft) 0.31 Cum Volume (acre -ft) 198.37 742.68 131.13 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 68.03 69.56 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.94 Element Left OB Channel Right OB Vel Head (ft) 0.21 Wt. n -Val. 0.045 0.045 E.G. Elev (ft) 457.15 Reach Len. (ft) 600.00 527.00 404.00 Crit W.S. (ft) 449.74 Flow Area (sq ft) 3324.87 3027.57 E.G. Slope (ft /ft) 0.000703 Area (sq ft) 3324.87 3150.42 Q Total (cfs) 22468.00 Flow (cfs) 13692.32 8775.68 Top Width (ft) 945.67 Top Width (ft) 307.00 638.67 Vel Total (ft /s) 3.54 Avg. Vel. (ft /s) 4.12 2.90 Max Chl Dpth (ft) 18.88 Hydr. Depth (ft) 10.83 5.98 Conv. Total (cfs) 847600.5 Conv. (cfs) 516539.8 331060.7 Length Wtd. (ft) 489.04 Wetted Per. (ft) 322.42 507.92 Min Ch E1 (ft) 438.06 Shear (lb /sq ft) 0.45 0.26 Alpha 1.09 Stream Power (lb /ft s) 1.86 0.76 Frctn Loss (ft) 0.35 Cum Volume (acre -ft) 341.00 989.42 530.54 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 86.30 141.51 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 29124 INPUT Description: * * * ** SECTION "C" * * * ** NEW AHHA CROSS SECTION Station Elevation Data num= Sta Elev Sta Elev 1209 462 1242 460 1338 446 1341 444 1417 442 1421 444 1458 450 1503 437.4 1553 454 1563 456 1670 456 1687 454 2303 452 2320 454 Manning's n Values num= Sta n Val Sta n Val 1209 .05 1322 .04 Bank Sta: Left Right Lengths: 1242 1617 35 Sta Elev 1248 458 1344 442 1427 446 1533 437.6 1587 458 1700 452 2345 456 4 Sta n Val 1540 .07 Left Channel 161 234 CROSS SECTION OUTPUT Profile #2 -year ultimate Sta Elev Sta Elev 1275 458 1322 450 1358 437.83 1400 437.83 1436 450 1450 451.4 1540 450 1544 452 1617 458.5 1660 458 1980 453.4 2254 452 2370 458 2415 460 Sta n Val 1660 .045 Right Coeff Contr. Expan. 337 .1 .3 W.S. Elev (ft) 451.84 Element Left OB Vel Head (ft) 0.22 Wt. n -Val. E.G. Elev (ft) 452.06 Reach Len. (ft) 161.00 Crit W.S. (ft) Flow Area (sq ft) Proposed Condition HEC -RAS Model - Page 36 Channel Right OB 0.040 234.00 337.00 2068.09 E.G. Slope (ft /ft) 0.000578 Area (sq ft) 2068.09 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 232.47 Top Width (ft) 232.47 Vel Total (ft /s) 3.81 Avg. Vel. (ft /s) 3.81 Max Chl Dpth (ft) 14.44 Hydr. Depth (ft) 8.90 Conv. Total (cfs) 327451.6 Conv. (cfs) 327451.6 Length Wtd. (ft) 243.46 Wetted Per. (ft) 246.68 Min Ch E1 (ft) 437.40 Shear (lb /sq ft) 0.30 Alpha 1.00 Stream Power (lb /ft s) 1.15 Frctn Loss (ft) 0.16 Cum Volume (acre -ft) 198.37 717.88 127.81 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 65.18 67.38 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.42 Element Left OB Channel Right OB Vel Head (ft) 0.36 Wt. n -Val. 0.040 0.045 E.G. Elev (ft) 456.78 Reach Len. (ft) 161.00 234.00 337.00 Crit W.S. (ft) Flow Area (sq ft) 3243.10 2442.38 E.G. Slope (ft /ft) 0.000729 Area (sq ft) 3243.10 2442.38 Q Total (cfs) 22468.00 Flow (cfs) 17375.62 5092.38 Top Width (ft) 966.17 Top Width (ft) 283.79 682.38 Vel Total (ft /s) 3.95 Avg. Vel. (ft /s) 5.36 2.09 Max Chl Dpth (ft) 19.02 Hydr. Depth (ft) 11.43 3.58 Conv. Total (cfs) 832155.4 Conv. (cfs) 643546.9 188608.5 Length Wtd. (ft) 273.79 Wetted Per. (ft) 298.86 682.91 Min Ch E1 (ft) 437.40 Shear (lb /sq ft) 0.49 0.16 Alpha 1.48 Stream Power (lb /ft s) 2.65 0.34 Frctn Loss (ft) 0.19 Cum Volume (acre -ft) 341.00 949.69 504.60 C & E Loss (ft) 0.06 Cum SA (acres) 62.57 82.72 135.38 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28890 INPUT Description: Station Elevation Data num= 41 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1239 462 1275 460 1304 458 1346 450 1380 442 1388 437.71 1433 437.71 1437 442 1480 450 1514 458 1553 459.1 1580 458 1614 450 1633 437.5 1637 437.1 1670 450 1685 458 1705 458.5 1729 458 1740 456 1746 454 1759 452 1773 450 1800 449.1 1890 450 1989 450.8 2092 452 2164 452 2250 450 2275 450 2331 450.5 2394 452 2439 453 2457 452 2467 450 2478 448 2486 446.5 2507 446.5 2534 448 2544 450 2654 452 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1239 .05 1346 .04 1480 .065 1614 .04 1670 .075 1705 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1275 1705 153 170 194 .1 .3 Blocked Obstructions num= 1 Sta L Sta R Elev 2544 2654 460 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.70 Element Left OB Channel Right OB Vel Head (ft) 0.19 Wt. n -Val. 0.043 0.045 E.G. Elev (ft) 451.89 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) Flow Area (sq ft) 1710.91 970.47 E.G. Slope (ft /ft) 0.000801 Area (sq ft) 1710.91 970.47 Q Total (cfs) 7870.00 Flow (cfs) 6423.75 1446.25 Top Width (ft) 811.84 Top Width (ft) 216.57 595.27 Vel Total (ft /s) 2.94 Avg. Vel. (ft /s) 3.75 1.49 Max Chl Dpth (ft) 14.60 Hydr. Depth (ft) 7.90 1.63 Proposed Condition HEC -RAS Model - Page 37 Conv. Total (cfs) 278052.8 Conv. (cfs) 226955.8 51097.0 Length Wtd. (ft) 178.14 Wetted Per. (ft) 228.36 597.88 Min Ch E1 (ft) W.S. Elev (ft) 437.10 Shear (lb /sq ft) 0.37 0.08 Alpha Wt. n -Val. 1.38 Stream Power (lb /ft s) 1.41 0.12 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 198.37 707.73 124.05 C & E Loss (ft) 0.04 Cum SA (acres) 57.13 63.97 65.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. 0.042 CROSS SECTION OUTPUT Profile #100 -year ultimat Reach Len. (ft) 173.00 228.00 338.00 W.S. Elev (ft) 456.38 Element Left OB Channel Right OB Vel Head (ft) 0.15 Wt. n -Val. 2062.20 0.048 0.045 E.G. Elev (ft) 456.53 Reach Len. (ft) 153.00 170.00 194.00 Crit W.S. (ft) 233.63 Flow Area (sq ft) Vel Total (ft /s) 2896.54 4619.45 E.G. Slope (ft /ft) 0.000639 Area (sq ft) 14.94 2896.54 4619.45 Q Total (cfs) 22468.00 Flow (cfs) Conv. (cfs) 10200.87 12267.13 Top Width (ft) 1095.86 Top Width (ft) 243.67 289.75 806.11 Vel Total (ft /s) 2.99 Avg. Vel. (ft /s) 0.04 3.52 2.66 Max Chl Dpth (ft) 19.28 Hydr. Depth (ft) 10.00 5.73 Conv. Total (cfs) 888854.1 Conv. (cfs) 403555.4 485298.8 Length Wtd. (ft) 184.58 Wetted Per. (ft) 304.23 814.02 Min Ch E1 (ft) 437.10 Shear (lb /sq ft) 0.38 0.23 Alpha 1.06 Stream Power (lb /ft s) 1.34 0.60 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 341.00 933.20 477.28 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 81.18 129.62 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28720 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1280 460 1281 460 1301 455 1321 450 1372 437.62 1415 437.62 1466 450 1483 455 1495 458 1509 459 1537 459.7 1552 459 1565 455 1576 450 1597 437.5 1609 436.8 1643 450 1657 455 1689 458.6 1711 455 1746 450 1824 448 1992 447.1 2363 447.1 2385 448 2443 449 2473 450 2513 455 2543 460 Manning's n Values num= 8 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1280 .05 1321 .04 1537 .065 1576 .04 1643 .07 1689 .045 1992 .035 2363 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1280 1689 173 228 338 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.74 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n -Val. 0.042 0.038 E.G. Elev (ft) 451.79 Reach Len. (ft) 173.00 228.00 338.00 Crit W.S. (ft) Flow Area (sq ft) 2062.20 3012.25 E.G. Slope (ft /ft) 0.000169 Area (sq ft) 2062.20 3012.25 Q Total (cfs) 7870.00 Flow (cfs) 3977.38 3892.62 Top Width (ft) 986.79 Top Width (ft) 233.63 753.16 Vel Total (ft /s) 1.55 Avg. Vel. (ft /s) 1.93 1.29 Max Chl Dpth (ft) 14.94 Hydr. Depth (ft) 8.83 4.00 Conv. Total (cfs) 606187.4 Conv. (cfs) 306357.7 299829.7 Length Wtd. (ft) 285.15 Wetted Per. (ft) 243.67 753.47 Min Ch E1 (ft) 436.80 Shear (lb /sq ft) 0.09 0.04 Proposed Condition HEC -RAS Model - Page 38 Alpha 1.12 Stream Power (lb /ft s) 0.17 0.05 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 700.37 115.18 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 63.09 62.08 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.37 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n -Val. 0.045 0.039 E.G. Elev (ft) 456.45 Reach Len. (ft) 173.00 228.00 338.00 Crit W.S. (ft) Flow Area (sq ft) 3282.54 6653.17 E.G. Slope (ft /ft) 0.000209 Area (sq ft) 3282.54 6653.17 Q Total (cfs) 22468.00 Flow (cfs) 7439.07 15028.93 Top Width (ft) 1120.15 Top Width (ft) 301.57 818.58 Vel Total (ft /s) 2.26 Avg. Vel. (ft /s) 2.27 2.26 Max Chl Dpth (ft) 19.57 Hydr. Depth (ft) 10.88 8.13 Conv. Total (cfs) 1554898.1 Conv. (cfs) 514821.2 1040076.9 Length Wtd. (ft) 304.43 Wetted Per. (ft) 314.37 819.54 Min Ch E1 (ft) 436.80 Shear (lb /sq ft) 0.14 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 0.24 Frctn Loss (ft)- 0.06 Cum Volume (acre -ft) 341.00 921.14 452.18 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 80.03 126.01 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28492 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 288 +70 Station Elevation Data Sta Elev Sta 1215 460 1216 1351 437.5 1401 1465 457 1492 1572 450 1583 1769 447.1 2352 2576 455 2599 Manning's n Values Sta n Val Sta 1215 .05 1259 1605 .045 1769 Bank Sta: Left Right 1215 1605 CROSS SECTION OUTPUT num= 27 Elev Sta 460 1237 450 1416 455 1503 455 1605 447.1 2423 460 num= 8 n Val Sta .04 1401 .035 2352 Lengths: Left 406 Profile #2 -year ultimate Elev 455 455 450 459.2 448 n Val .065 .045 :hanne 1 324 Sta 1259 1424 1518 1650 2512 Sta 1503 Right 307 Elev Sta Elev 450 1309 437.5 457 1439 457.4 437.6 1536 436.3 455 1714 450 449 2540 450 n Val Sta n Val .04 1572 .07 Coeff Contr. Expan .1 .3 Proposed Condition HEC-RAS Model - Page 39 W.S. Elev (ft) 451.71 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n -Val. Elev 0.042 0.037 E.G. Elev (ft) 451.74 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) 1146 Flow Area (sq ft) 455 2102.19 3532.20 E.G. Slope (ft /ft) 0.000131 Area (sq ft) 450 2102.19 3532.20 Q Total (cfs) 7870.00 Flow (cfs) 1419 3584.54 4285.46 Top Width (ft) 1091.33 Top Width (ft) 447.1 231.16 860.17 Vel Total (ft /s) 1.40 Avg. Vel. (ft /s) 2496 1.71 1.21 Max Chl Dpth (ft) 15.41 Hydr. Depth (ft) 9.09 4.11 Conv. Total (cfs) 688604.5 Conv. (cfs) 313638.3 374966.2 Length Wtd. (ft) 314.89 Wetted Per. (ft) 242.47 860.46 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 0.07 0.03 Alpha 1.09 Stream Power (lb /ft s) 0.12 0.04 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 198.37 689.47 89.79 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 61.88 55.82 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.32 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.047 0.037 E.G. Elev (ft) 456.39 Reach Len. (ft) 406.00 324.00 307.00 Crit W.S. (ft) Flow Area (sq ft) 3307.91 7710.77 E.G. Slope (ft /ft) 0.000162 Area (sq ft) 3307.91 7710.77 Q Total (cfs) 22468.00 Flow (cfs) 6274.33 16193.67 Top Width (ft) 1251.92 Top Width (ft) 305.65 946.27 Vel Total (ft /s) 2.04 Avg. Vel. (ft /s) 1.90 2.10 Max Chl Dpth (ft) 20.02 Hydr. Depth (ft) 10.82 8.15 Conv. Total (cfs) 1766869.8 Conv. (cfs) 493409.1 1273460.6 Length Wtd. (ft) 311.80 Wetted Per. (ft) 319.79 947.12 Min Ch El (ft) 436.30 Shear (lb /sq ft) 0.10 0.08 Alpha 1.01 Stream Power (lb /ft s) 0.20 0.17 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 341.00 903.89 396.45 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 78.44 119.16 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 28168 INPUT Description: Station Elevation Data Sta Elev St 1021 460 1041 1197 450 1214 1293 436.6 1328 1461 455 1525 2410 449 2436 Manning's n Values Sta n Val Sta 1021 .05 1061 1419 .045 1563 Bank Sta: Left Right 1021 1419 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) num= 24 Sta num= 8 n Val Sta n Val Sta .04 1214 .065 1275 .035 1994 .045 Lengths: Left Channel Right 167 176 223 Profile #2 -year ultimate 451.67 Element 0.03 Wt. n -Val. 451.70 Reach Len. (ft) Flow Area (sq ft) 0.000135 Area (sq ft) 7870.00 Flow (cfs) 1180.01 Top Width (ft) 1.35 Avg. Vel. (ft /s) n Val Sta n Val .04 1353 .07 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.042 0.039 167.00 176.00 223.00 2138.38 Elev Sta Elev Sta Elev Sta Elev 455 1061 450 1112 437.36 1146 437.36 455 1241 459.2 1265 455 1275 450 438.9 1353 450 1375 455 1419 458.8 450 1563 447.1 1994 447.1 2196 448 450 2468 455 2496 460 num= 8 n Val Sta n Val Sta .04 1214 .065 1275 .035 1994 .045 Lengths: Left Channel Right 167 176 223 Profile #2 -year ultimate 451.67 Element 0.03 Wt. n -Val. 451.70 Reach Len. (ft) Flow Area (sq ft) 0.000135 Area (sq ft) 7870.00 Flow (cfs) 1180.01 Top Width (ft) 1.35 Avg. Vel. (ft /s) n Val Sta n Val .04 1353 .07 Coeff Contr. Expan. .1 .3 Left OB Channel Right OB 0.042 0.039 167.00 176.00 223.00 2138.38 3679.06 2138.38 3679.06 3718.45 4151.55 237.00 943.00 1.74 1.13 Proposed Condition HEC -R4S Model - Page 40 Max Chl Dpth (ft) 15.07 Hydr. Depth (ft) 9.02 3.90 Conv. Total (cfs) 677062.8 Conv. (cfs) 319901.1 357161.7 Length Wtd. (ft) 194.94 Wetted Per. (ft) 247.98 943.33 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.07 0.03 Alpha 1.15 Stream Power (lb /ft s) num= 0.13 0.04 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 198.37 673.70 64.38 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 60.14 49.46 Warning - Divided flow computed for this cross - section. 437.28 1224 450 1243 Note - Manning's n values were composited to a single value in the main channel. 459.7 CROSS SECTION OUTPUT Profile #100 -year ultimat 1391 450 1410 436 1452 W.S. Elev (ft) 456.28 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 1572 455 1607 0.047 0.039 E.G. Elev (ft) 456.34 Reach Len. (ft) 167.00 176.00 223.00 Crit W.S. (ft) 460 Flow Area (sq ft) 3389.32 8229.46 E.G. Slope (ft /ft) 0.000160 Area (sq ft) 3389.32 8229.46 Q Total (cfs) 22468.00 Flow (cfs) n Val 6410.73 16057.27 Top Width (ft) 1346.71 Top Width (ft) 1224 .065 1391 318.43 1028.28 Vel Total (ft /s) 1.93 Avg. Vel. (ft /s) 1.89 1.95 Max Chl Dpth (ft) 19.68 Hydr. Depth (ft) Bank Sta: Left Right 10.64 8.00 Conv. Total (cfs) 1774752.0 Conv. (cfs) 1041 1543 506384.7 1268367.4 Length Wtd. (ft) 206.53 Wetted Per. (ft) 331.88 1029.17 Min Ch E1 (ft) 436.60 Shear (lb /sq ft) 0.10 0.08 Alpha 1.00 Stream Power (lb /ft s) Channel 0.19 0.16 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 341.00 878.99 340.28 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 76.12 112.20 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27992 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1041 460 1061 455 1081 450 1132 437.28 1173 437.28 1224 450 1243 455 1265 459 1302 459.7 1339 459.7 1362 459 1375 455 1391 450 1410 436 1452 435.6 1482 450 1508 455 1528 458 1543 458.6 1558 458 1572 455 1607 450 1624 449 1977 448.5 2229 449 2527 450 2561 451 2587 455 2617 460 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1041 .05 1081 .04 1224 .065 1391 .04 1482 .07 1607 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1041 1543 213 244 309 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.60 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n -Val. 0.043 0.045 E.G. Elev (ft) 451.66 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) Flow Area (sq ft) 2511.56 2436.21 E.G. Slope (ft /ft) 0.000216 Area (sq ft) 2511.56 2436.21 Q Total (cfs) 7870.00 Flow (cfs) 5678.28 2191.72 Top Width (ft) 1229.11 Top Width (ft) 259.97 969.14 Vel Total (ft /s) 1.59 Avg. Vel. (ft /s) 2.26 0.90 Max Chl Dpth (ft) 16.00 Hydr. Depth (ft) 9.66 2.51 Conv. Total (cfs) 535448.4 Conv. (cfs) 386331.3 149117.0 Length Wtd. (ft) 255.27 Wetted Per. (ft) 271.78 969.35 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.12 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.28 0.03 Frctn Loss (ft) 0.08 Cum Volume (acre -ft) 198.37 664.30 48.73 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 59.13 44.57 Proposed Condition HEGRAS Model - Page 41 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 456.23 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n -Val. 0.048 0.045 E.G. Elev (ft) 456.29 Reach Len. (ft) 213.00 244.00 309.00 Crit W.S. (ft) Flow Area (sq ft) 3888.99 7058.86 E.G. Slope (ft /ft) 0.000242 Area (sq ft) 3888.99 7058.86 Q Total (cfs) 22468.00 Flow (cfs) 9336.22 13131.78 Top Width (ft) 1366.89 Top Width (ft) 338.81 1028.08 Vel Total (ft /s) 2.05 Avg. Vel. (ft /s) 2.40 1.86 Max Chl Dpth (ft) 20.63 Hydr. Depth (ft) 11.48 6.87 Conv. Total (cfs) 1443739.6 Conv. (cfs) 599922.8 843816.8 Length Wtd. (ft) 281.02 Wetted Per. (ft) 352.85 1029.02 Min Ch El (ft) 435.60 Shear (lb /sq ft) 0.17 0.10 Alpha 1.05 Stream Power (lb /ft s) 0.40 0.19 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 864.28 301.15 C & E Loss (ft)- 0.00 Cum SA (acres) 62.57 74.79 106.94 Warning - Divided flow computed for this cross- section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27748 INPUT Description: NEW AHHA CROSS SECTION WATER MANAGEMENT STUDY SECTION 280 +80 Station Elevation Data Sta Elev Sta 1071 460 1091 1253 450 1275 1441 459.2 1499 1583 450 1594 1697 450 1859 2700 451.4 2747 Manning's n Values Sta n Val Sta 1071 .0s 1109 1616 .045 Bank Sta: Left Right 1071 1606 CROSS SECTION OUTPUT W.S. Elev (ft) num= 29 Elev Sta 455 1109 455 1286 455 1516 455 1606 450 1957 452 2765 num= 6 n Val Sta .04 1253 Lengths: Left 324 Profile #2 -year ultimate 451.40 Element Elev 450 458 450 456.5 450.2 455 n Val .065 :hannel 299 Sta Elev Sta Elev 1160 437.18 1202 437.18 1371 458 1426 459 1538 435.2 1557 435.3 1616 455 1642 451 2096 450.2 2338 451 2789 459 Sta n Val Sta n Val 1516 .04 1583 .07 Right Coeff Contr. Expan. 262 .1 .3 Left OB Channel Right OB Proposed Condition HEC -RAS Model - Page 42 Vel Head (ft) 0.17 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 451.57 Reach Len. (ft) 324.00 299.00 262.00 Crit W.S. (ft) Flow Area (sq ft) 2135.19 837.27 E.G. Slope (ft /ft) 0.000519 Area (sq ft) 2135.19 837.27 Q Total (cfs) 7870.00 Flow (cfs) 7332.25 537.75 Top Width (ft) 1290.66 Top Width (ft) 230.04 1060.62 Vel Total (ft /s) 2.65 Avg. Vel. (ft /s) 3.43 0.64 Max Chl Dpth (ft) 16.20 Hydr. Depth (ft) Sta Elev 9.28 0.79 Conv. Total (cfs) 345592.7 Conv. (cfs) 1014 460.3 321978.4 23614.2 Length Wtd. (ft) 296.36 Wetted Per. (ft) 1149 242.45 1060.66 Min Ch E1 (ft) 435.20 Shear (lb /sq ft) 1245 456 0.29 0.03 Alpha 1.57 Stream Power (lb /ft s) 1354 455 0.98 0.02 Frctn Loss (ft) 0.15 Cum Volume (acre -ft) 198.37 651.29 37.12 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 57.76 37.37 Warning - Divided flow computed for this cross - section. 1574 451 1645 451 Note - Manning's n values were composited to a single value in the main channel. 2182 CROSS SECTION OUTPUT Profile #100 -year ultimat 2472 451 2707 452 W.S. Elev (ft) 456.11 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n -Val. 6 0.048 0.045 E.G. Elev (ft)• 456.21 Reach Len. (ft) 324.00 299.00 262.00 Crit W.S. (ft) Sta Flow Area (sq ft) Sta 3379.19 6162.33 E.G. Slope (ft /ft) 0.000404 Area (sq ft) 1413 .065 3379.19 6162.33 Q Total (cfs) 22468.00 Flow (cfs) 1574 .045 10005.46 12462.54 Top Width (ft) 1474.77 Top Width (ft) 311.71 1163.06 Vel Total (ft /s) 2.35 Avg. Vel. (ft /s) Coeff 2.96 2.02 Max Chl Dpth (ft) 20.91 Hydr. Depth (ft) 10.84 5.30 Conv. Total (cfs) 1118119.1 Conv. (cfs) 497921.2 620197.9 Length Wtd. (ft) 278.21 Wetted Per. (ft) 326.71 1163.80 Min Ch E1 (ft) 435.20 Shear (lb /sq ft) 0.26 0.13 Alpha 1.11 Stream Power (lb /ft s) 0.17 0.77 0.27 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 341.00 843.93 254.26 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 72.97 99.17 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27449 INPUT Description: Station Elevation Data num= 29 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1014 460.3 1035 455 1054 450 1104 437.04 1149 437.04 1199 450 1220 455 1245 456 1280 457.6 1322 455 1354 455 1368 456.4 1413 455 1427 450 1470 435.6 1485 435.7 1499 450 1521 455 1534 457.5 1545 455 1574 451 1645 451 1843 450 2018 449.8 2182 450 2472 451 2707 452 2734 455 2761 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1014 .05 1054 .04 1413 .065 1427 .04 1499 .07 1574 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1014 1534 240 284 248 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.25 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.041 0.045 E.G. Elev (ft) 451.42 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) Flow Area (sq ft) 2139.38 849.41 E.G. Slope (ft /ft) 0.000510 Area (sq ft) 2139.38 849.41 Q Total (cfs) 7870.00 Flow (cfs) 7285.05 584.95 Top Width (ft) 1194.68 Top Width (ft) 236.01 958.67 Vel Total (ft /s) 2.63 Avg. Vel. (ft /s) 3.41 0.69 Proposed Condition HEC -RAS Model - Page 43 Max Chl Dpth (ft) 15.65 Hydr. Depth (ft) 9.06 0.89 Conv. Total (cfs) 348414.4 Conv. (cfs) 322518.1 25896.4 Length Wtd. (ft) 276.80 Wetted Per. (ft) 248.34 958.70 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 0.27 0.03 Alpha 1.55 Stream Power (lb /ft s) 0.93 0.02 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 636.62 32.05 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 56.16 31.30 Warning - Divided flow computed for this cross - section. 1340 459 1381 458 Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat 448.3 2198 449 W.S. Elev (ft) 456.00 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.044 0.045 E.G. Elev (ft) 456.09 Reach Len. (ft) 240.00 284.00 248.00 Crit W.S. (ft) .04 Flow Area (sq ft) .045 3503.64 6328.10 E.G. Slope (ft /ft) 0.000407 Area (sq ft) Expan. 3503.64 6328.10 Q Total (cfs) 22468.00 Flow (cfs) .3 9687.75 12780.25 Top Width (ft) 1617.91 Top Width (ft) 417.73 1200.18 Vel Total (ft /s) 2.29 Avg. Vel. (ft /s) Right OB 2.77 2.02 Max Chl Dpth (ft) 20.40 Hydr. Depth (ft) 0.045 8.39 5.27 Conv. Total (cf-s) 1113651.3 Conv. (cfs) 201.00 480184.2 633467.1 Length Wtd. (ft) 261.43 Wetted Per. (ft) 2073.39 432.39 1200.82 Min Ch E1 (ft) 435.60 Shear (lb /sq ft) 2073.39 0.21 0.13 Alpha 1.08 Stream Power (lb /ft s) 2564.69 0.57 0.27 Frctn Loss (ft) 0.10 Cum Volume (acre -ft) 341.00 820.30 216.69 C & E Loss (ft) 0.00 Cum SA (acres) 62.57 70.46 92.06 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 27165 INPUT Description: Station Elevation Data num= 24 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 985 461.5 1011 455 1038 450 1090 436.9 1137 436.1 1189 450 1218 455 1239 458 1270 458.5 1308 459 1340 459 1381 458 1403 455 1429 451.5 1553 450.3 1606 450 1747 449 1855 448.3 2063 448.3 2198 449 2435 449 2460 450 2607 455 2658 459 Manning's n Values num= 4 Sta n Val Sta n Val Sta n Val Sta n Val 985 .05 1038 .04 1189 .07 1553 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 985 1308 240 284 201 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.13 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.042 0.045 E.G. Elev (ft) 451.27 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) Flow Area (sq ft) 1514.35 2073.39 E.G. Slope (ft /ft) 0.000514 Area (sq ft) 1514.35 2073.39 Q Total (cfs) 7870.00 Flow (cfs) 5305.31 2564.69 Top Width (ft) 1189.70 Top Width (ft) 163.66 1026.04 Vel Total (ft /s) 2.19 Avg. Vel. (ft /s) 3.50 1.24 Max Chl Dpth (ft) 15.03 Hydr. Depth (ft) 9.25 2.02 Conv. Total (cfs) 347076.8 Conv. (cfs) 233970.8 113106.0 Length Wtd. (ft) 270.48 Wetted Per. (ft) 167.32 1026.09 Min Ch E1 (ft) 436.10 Shear (lb /sq ft) 0.29 0.06 Alpha 1.82 Stream Power (lb /ft s) 1.02 0.08 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 198.37 624.71 23.73 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 54.86 25.65 Proposed Condition HEC-RAS Model - Page 44 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. Sta CROSS SECTION OUTPUT Profile #100 -year ultimat Elev Sta Elev W.S. Elev (ft) 455.91 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 1188 0.047 0.046 E.G. Elev (ft) 455.99 Reach Len. (ft) 240.00 284.00 201.00 Crit W.S. (ft) 458.7 Flow Area (sq ft) 1407 2423.42 7548.40 E.G. Slope (ft /ft) 0.000350 Area (sq ft) 1488 2423.42 7548.40 Q Total (cfs) 22468.00 Flow (cfs) 457.5 7081.60 15386.40 Top Width (ft) 1439.14 Top Width (ft) 1767 216.96 1222.18 Vel Total (ft /s) 2.25 Avg. Vel. (ft /s) 2084 2.92 2.04 Max Chl Dpth (ft) 19.81 Hydr. Depth (ft) 454 11.17 6.18 Conv. Total (cfs) 1201199.8 Conv. (cfs) 2481 378601.4 822598.3 Length Wtd. (ft) 252.74 Wetted Per. (ft) 2761 221.48 1222.63 Min Ch E1 (ft) 436.10 Shear (lb /sq ft) 0.24 0.13 Alpha 1.09 Stream Power (lb /ft s) Sta 0.70 0.27 Frctn Loss (ft) 0.15 Cum Volume (acre -ft) 341.00 800.98 177.19 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 68.40 85.16 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26880 INPUT Description: AHH CROSS SECTION - 16 APRIL '92 NOTE: SECTIONS 268 +80 THRU 313+35 FROM TOPOGRAPHY OF COPPELL COMMUNITY PARK FLOWN FEBRUARY 1992. Station Elevation Data num= 35 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1012 461.5 1038 455 1060 450 1113 436.76 1188 436.76 1241 450 1265 455 1276 457 1286 458 1304 458.7 1371 458 1407 455 1444 450 1468 436.2 1488 436.4 1521 450 1530 455 1585 457.5 1634 457 1666 456 1708 455.4 1767 455.3 1820 455 1889 454 2084 453.8 2133 454 2214 454.1 2300 454 2327 453.8 2342 454 2423 454.2 2481 454 2634 454 2683 455 2761 459 Manning's n Values num= 6 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val Proposed Condition HEC -RAS Model - Page 45 1012 .05 1060 .04 1241 .065 1444 .04 1521 .07 1634 .045 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 1012 1585 32 50 479 .1 .3 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 451.01 Element Left OB Channel Right OB Vel Head (ft) 0.14 Wt. n -Val. 0.042 E.G. Elev (ft) 451.15 Reach Len. (ft) 32.00 50.00 479.00 Crit W.S. (ft) Flow Area (sq ft) 2628.84 E.G. Slope (ft /ft) 0.000367 Area (sq ft) 2628.84 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 276.59 Top width (ft) 276.59 Vel Total (ft /s) 2.99 Avg. Vel. (ft /s) 2.99 Max Chl Dpth (ft) 14.81 Hydr. Depth (ft) 9.50 Conv. Total (cfs) 410777.7 Conv. (cfs) 410777.7 Length Wtd. (ft) 50.00 Wetted Per. (ft) 286.78 Min Ch E1 (ft) 436.20 Shear (lb /sq ft) 0.21 Alpha 1.00 Stream Power (lb /ft s) 0.63 Frctn Loss (ft) 0.02 Cum volume (acre -ft) 198.37 611.20 18.94 C & E Loss (ft) 0.00 Cum SA (acres) 57.13 53.42 23.28 warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 455.42 Element Left OB Channel Right OB Vel Head (ft) 0.39 Wt. n -Val. 0.047 0.045 E.G. Elev (ft) 455.81 Reach Len. (ft) 32.00 50.00 479.00 Crit W.S. (ft) Flow Area (sq ft) 4029.76 1193.54 E.G. Slope (ft /ft) 0.001179 Area (sq ft) 4029.76 1193.54 Q Total (cfs) 22468.00 Flow (cfs) 20929.79 1538.21 Top Width (ft) 1352.94 Top Width (ft) 368.29 984.64 Vel Total (ft /s) 4.30 Avg. Vel. (ft /s) 5.19 1.29 Max Chl Dpth (ft) 19.22 Hydr. Depth (ft) 10.94 1.21 Conv. Total (cfs) 654429.7 Conv. (cfs) 609625.8 44803.9 Length Wtd. (ft) 103.71 Wetted Per. (ft) 380.76 984.67 Min Ch E1 (ft) 436.20 Shear (lb /sq ft) 0.78 0.09 Alpha 1.36 Stream Power (lb /ft s) 4.04 0.11 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 341.00 779.94 157.02 C & E Loss (ft) 0.01 Cum SA (acres) 62.57 66.49 80.07 Warning - Divided flow computed for this cross - section. Note - Manning's n values were composited to a single value in the main channel. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 26830 INPUT Description: * * * ** SECTION "B" * * * ** FROM KIMLEY -HORN MODEL. -- Normal Pool Elev. set =445.5 Station Elevation Data num= 42 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 550 464.9 600 461.9 700 459.1 800 455.9 900 452.9 1000 451.7 1100 451.3 1200 451.2 1300 450.9 1400 451.1 Proposed Condition HEC -RAS Model - Page 46 1500 452.8 1600 452.8 1700 452.4 1800 453.2 2000 453.3 2100 454.2 2200 454.4 2300 455.3 2500 455.9 2600 457.6 2619.58 457.35 2702 436.74 2818.65 456.91 2900 457.8 3000 451.6 3005 448.7 3062 436.5 3100 452 3200 454 3230 452 3500 452 3650 452 3920 452 4000 456.3 5100 461.9 5200 465 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta 550 .055 2619.58 .035 2818.65 .055 2900 Bank Sta: Left Right Lengths: Left Channel Right 2619.58 3100 INPUT 1030 1050 960 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 550 2619.58 470 5200 5200 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.94 Element Vel Head (ft) 0.19 Wt. n -Val. E.G. Elev (ft) 451.13 Reach Len. (ft) Crit W.S. (ft) - Flow Area (sq ft) Flow Area (sq ft) E.G. Slope (ft /ft) 0.000362 Area (sq ft) Q Total (cfs) 7870.00 Flow (cfs) Top Width (ft) 245.83 Top Width (ft) Vel Total (ft /s) 3.46 Avg. Vel. (ft /s) Max Chl Dpth (ft) 14.64 Hydr. Depth (ft) Conv. Total (cfs) 413802.5 Conv. (cfs) Length Wtd. (ft) 1050.00 Wetted Per. (ft) Min Ch E1 (ft) 436.30 Shear (lb /sq ft) Alpha 1.00 Stream Power (lb /ft s; Frctn Loss (ft) 0.24 Cum Volume (acre -ft) C & E Loss (ft) 0.02 Cum SA (acres) 1900 453.1 2400 456 2738 436.74 3027 436.3 3290 452 4250 460 n Val Sta .035 3100 Coeff Contr. .1 Left OB 1030.00 198.37 57.13 n Val .055 Expan. .3 Channel 0.035 1050.00 2272.14 2272.14 7870.00 245.83 3.46 9.24 413802.5 256.02 0.20 0.69 608.39 53.12 Right OB 960.00 18.94 23.28 Warning - Divided flow computed for this cross - section. warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat INPUT W.S. Elev (ft) 455.36 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 455.71 Reach Len. (ft) 1030.00 1050.00 960.00 Crit W.S. (ft) 70 Flow Area (sq ft) 3566.62 2733.14 E.G. Slope (ft /ft) 0.000679 Area (sq ft) Elev 3566.62 2733.14 Q Total (cfs) 22468.00 Flow (cfs) Elev 18379.93 4088.07 Top Width (ft) 1228.21 Top Width (ft) 800 345.64 882.57 Vel Total (ft /s) 3.57 Avg. Vel. (ft /s) 451.1 5.15 1.50 Max Chl Dpth (ft) 19.06 Hydr. Depth (ft) 450.8 10.32 3.10 Conv. Total (cfs) 862098.8 Conv. (cfs) 1800 705239.2 156859.6 Length Wtd. (ft) 1041.80 Wetted Per. (ft) 453.4 357.42 882.75 Min Ch E1 (ft) 436.30 Shear (lb /sq ft) 455 0.42 0.13 Alpha 1.74 Stream Power (lb /ft s) 2.18 0.20 Frctn Loss (ft) 0.64 Cum Volume (acre -ft) 341.00 775.59 135.43 C & E Loss (ft) 0.02 Cum SA (acres) 62.57 66.08 69.81 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 25770 INPUT Description: Station Elevation Data num= 70 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 500 469.5 600 460.5 700 455.6 800 452.9 900 450.4 1000 449.9 1100 451.1 1200 450.6 1300 451.3 1400 450.8 1500 451 1600 451.4 1700 451.6 1800 451.5 1900 452.7 2000 453.1 2100 453.4 2200 454.2 2300 454.3 2400 455 Proposed Condition HEC-RAS Model - Page 47 2495.2 455.33 2570 436.73 2650 436.73 2660 434.6 2710 434.6 2780 456 2845 456.8 2845 470 2920 470 2920 456.8 2940 456.8 2940 470 2990 470 2990 456.8 3010 456.8 3010 470 3060 470 3060 456.8 3095 457.2 3095 470 3145 470 3145 457.2 3165 457.6 3165 470 3210 470 3210 457.6 3230 457.8 3230 470 3280 470 3280 457.8 3300 457.8 3300 470 3350 470 3350 457.8 3370 457.7 3370 470 3420 470 3420 457.7 3440 457.3 3440 470 3490 470 3490 457.3 3510 457.1 3510 470 3540 470 3540 457.1 3555 456 3590 456 3600 459.6 4360 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 500 .055 2495.2 .035 2780 .065 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 2495.2 2780 240 240 240 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 500 2494 470 2780 4360 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft)- 450.75 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.035 E.G. Elev (ft) 450.86 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 2901.81 E.G. Slope (ft /ft) 0.000158 Area (sq ft) 2901.81 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 249.21 Top Width (ft) 249.21 Vel Total (ft /s) 2.71 Avg. Vel. (ft /s) 2.71 Max Chl Dpth (ft) 16.15 Hydr. Depth (ft) 11.64 Conv. Total (cfs) 625627.1 Conv. (cfs) 625627.1 Length Wtd. (ft) 240.00 Wetted Per. (ft) 253.56 Min Ch E1 (ft) 434.60 Shear (lb /sq ft) 0.11 Alpha 1.00 Stream Power (lb /ft s) 0.31 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 198.37 546.03 18.94 C & E Loss (ft) 0.01 Cum SA (acres) 57.13 47.16 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.53 Element Left OB Channel Right OB Vel Head (ft) 0.52 Wt. n -Val. 0.035 E.G. Elev (ft) 455.05 Reach Len. (ft) 240.00 240.00 240.00 Crit W.S. (ft) Flow Area (sq ft) 3897.10 E.G. Slope (ft /ft) 0.000557 Area (sq ft) 3897.10 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 276.81 Top Width (ft) 276.81 Vel Total (ft /s) 5.77 Avg. Vel. (ft /s) 5.77 Max Chl Dpth (ft) 19.93 Hydr. Depth (ft) 14.08 Conv. Total (cfs) 952361.4 Conv. (cfs) 952361.4 Length Wtd. (ft) 240.00 Wetted Per. (ft) 282.19 Min Ch E1 (ft) 434.60 Shear (lb /sq ft) 0.48 Alpha 1.00 Stream Power (lb /ft s) 2.77 Frctn Loss (ft) 0.17 Cum Volume (acre -ft) 341.00 685.63 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 62.57 58.58 60.08 CROSS SECTION REACH: Reach -1 INPUT Description: RIVER: RIVER -1 RS: 25530 FROM KIMLEY -HORN MODEL. CHANNEL DISTANCE REVISED. Proposed Condition HEC -RAS Model - Page 48 Station Elevation Data num= 90 Sta Elev Sta Elev Sta 500 469.5 600 460.5 700 1000 449.9 1100 451.1 1200 1500 451 1600 451.4 1700 2000 453.1 2100 453.4 2200 2495.2 455.33 2570 436.63 2627.2 2742.67 454.8 2780 453.5 2820 2880 455 2905 454.7 2935 3020 470 3020 456.5 3030 3090 456.8 3100 456.8 3100 3170 456.9 3170 470 3240 3250 470 3315 470 3315 3385 470 3385 457.8 3395 3455 458.1 3465 458.1 3465 3540 457.2 3540 470 3590 3650 455.9 3680 456.9 3680 3765 457.6 3765 470 3825 3840 470- 3905 470 3905 3980 470 3980 458.7 4000 Manning's n Values num= 3 Sta n Val Sta n Val Sta 500 .055 2495.2 .035 2742.67 Bank Sta: Left Right Lengths: Left C 2495.2 2742.67 700 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R 500 2494 470 2742.67 4600 Elev 455.6 450.6 451.6 454.2 436.63 454 454.7 456.5 470 470 457.9 457.8 470 470 470 470 458.4 458.7 n Val .065 hannel 700 Elev 470 CROSS SECTION OUTPUT Profile #2 -year ultimate Sta 800 1300 1800 2300 2630 2820 2965 3030 3160 3240 3325 3395 3525 3590 3750 3825 3920 4000 Right 560 Elev Sta Elev 452.9 900 450.4 451.3 1400 450.8 451.5 1900 452.7 454.3 2400 455 434.5 2670 434.4 470 2880 470 455.3 2965 470 470 3090 470 470 3160 456.8 457.8 3250 457.8 457.9 3325 470 470 3455 470 470 3525 457.2 457 3620 455.9 470 3750 457.6 458 3840 458 458.4 3920 470 470 4600 470 Coeff Contr. Expan. .1 .3 W.S. Elev (ft) 450.64 Element Left OB Channel Right OB Vel Head (ft) 0.17 Wt. n -Val. 0.035 E.G. Elev (ft) 450.81 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 2352.78 E.G. Slope (ft /ft) 0.000261 Area (sq ft) 2352.78 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 213.87 Top Width (ft) 213.87 Vel Total (ft /s) 3.34 Avg. Vel. (ft /s) 3.34 Max Chl Dpth (ft) 16.24 Hydr. Depth (ft) 11.00 Conv. Total (cfs) 487009.9 Conv. (cfs) 487009.9 Length Wtd. (ft) 700.00 Wetted Per. (ft) 218.54 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.18 Alpha 1.00 Stream Power (lb /ft s) 0.59 Frctn Loss (ft) 0.14 Cum Volume (acre -ft) 198.37 531.55 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 57.13 45.88 23.28 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 454.05 Element Left OB Channel Right OB Vel Head (ft) 0.80 Wt. n -Val. 0.035 E.G. Elev (ft) 454.85 Reach Len. (ft) 700.00 700.00 560.00 Crit W.S. (ft) Flow Area (sq ft) 3126.24 E.G. Slope (ft /ft) 0.000962 Area (sq ft) 3126.24 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 239.66 Top Width (ft) 239.66 Vel Total (ft /s) 7.19 Avg. Vel. (ft /s) 7.19 Max Chl Dpth (ft) 19.65 Hydr. Depth (ft) 13.04 Conv. Total (cfs) 724299.7 Conv. (cfs) 724299.7 Length Wtd. (ft) 700.00 Wetted Per. (ft) 245.23 Min Ch E1 (ft) 434.40 Shear (lb /sq ft) 0.77 Alpha 1.00 Stream Power (lb /ft s) 5.50 Frctn Loss (ft) 0.47 Cum Volume (acre -ft) 341.00 666.28 105.32 C & E Loss (ft) 0.14 Cum SA (acres) 62.57 57.15 60.08 Proposed Condition HEC -RAS Model - Page 49 CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24700 INPUT Description: * * * * * * * * ** KH- PARCHE MODEL COORDINATION 24700 - 39440 * * * * * * * * * * ** CROSS SECTION 24700 IS FROM THE KIMLEY -HORN MODEL. * * * ** SECTION "A" * * * ** Station Elevation Data num= 53 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465 1120 462 1140 462 1230 460 1300 460 1410 457 1550 455 1650 454 1870 453 2080 452 2180 451 2260 450 2630 451 2910 451 2980 451 3180 452 3340 452 3530 452 3800 453 4000 453 4110 453 4188.16 453 4260 435.04 4350 435.04 4424.38 453.63 4450 454 4480 455 4510 455 4780 454 4800 454 4850 455 5000 451 5060 451 5140 440 5155 433.9 5170 440 5200 456 5260 456.3 5300 456.6 5400 456.9 5630 457 5800 458.4 5900 459 5970 459.4 6050 459.7 6140 459.9 6360 459 6410 458.5 6480 458.3 6500 458.7 6580 459.2 6670 460 6690 462 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .055 4188.16 .035 4424.38 .055 5060 .035 5200 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5060 5200 610 350 80 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4187 470 5200 6690 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.55 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n -Val. 0.035 0.035 E.G. Elev (ft) 450.65 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) Flow Area (sq ft) 2359.19 917.63 E.G. Slope (ft /ft) 0.000155 Area (sq ft) 2359.19 917.63 Q Total (cfs) 7870.00 Flow (cfs) 6105.03 1764.97 Top Width (ft) 340.68 Top Width (ft) 214.13 126.55 Vel Total (ft /s) 2.40 Avg. Vel. (ft /s) 2.59 1.92 Max Chl Dpth (ft) 16.65 Hydr. Depth (ft) 11.02 7.25 Conv. Total (cfs) 631800.3 Conv. (cfs) 490109.0 141691.3 Length Wtd. (ft) 450.84 Wetted Per. (ft) 217.95 132.29 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.10 0.07 Alpha 1.04 Stream Power (lb /ft s) 0.27 0.13 Frctn Loss (ft) 0.04 Cum Volume (acre -ft) 179.42 505.28 18.94 C & E Loss (ft) 0.02 Cum SA (acres) 55.40 43.14 23.28 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile 4100 -year ultimat Proposed Condition HEC -RAS Model - Page 50 W.S. Elev (ft) 453.90 Element Left OB Channel Right OB Vel Head (ft) 0.34 Wt. n -Val. 0.035 0.035 E.G. Elev (ft) 454.24 Reach Len. (ft) 610.00 350.00 80.00 Crit W.S. (ft) Flow Area (sq ft) 3452.63 1361.24 E.G. Slope (ft /ft) 0.000501 Area (sq ft) 3452.63 1361.24 Q Total (cfs) 22468.00 Flow (cfs) 16650.83 5817.17 Top Width (ft) 560.57 Top Width (ft) 424.51 136.06 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 4.82 4.27 Max Chl Dpth (ft) 20.00 Hydr. Depth (ft) 8.13 10.00 Conv. Total (cfs) 1004106.4 Conv. (cfs) 744133.9 259972.5 Length Wtd. (ft) 446.34 Wetted Per. (ft) 429.95 142.67 Min Ch E1 (ft) 433.90 Shear (lb /sq ft) 0.25 0.30 Alpha 1.01 Stream Power (lb /ft s) 1.21 1.27 Frctn Loss (ft) 0.12 Cum Volume (acre -ft) 313.26 630.23 105.32 C & E Loss (ft) 0.07 Cum SA (acres) 59.16 54.13 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 24400 INPUT Description: Approximate Location of MacArthur Crossing - -Not included in this hydraulic model. Station Elevation Data num= 43 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 465 1040 460 1090 457.5 1140 459.5 1200 452 1240 452 1270 457 1340 452 1540 450.5 1700 450 1940 450 2200 449 2790 450 3250 450 3340 451 3870 452 4090 451 5000 451 5220 452 5240 459.5 5260 459.2 5280 452.3 5310 452 5365 433.5 5445 433.5 5510 451.5 5600 453 5950 456.5 6340 453 6490 446 6640 431.5 6820 452 6940 456 7120 457.8 7430 459 7670 459.9 9020 458 9240 457.5 9440 458 9940 458.5 11240 457 12240 457.5 12560 458 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .055 5260 .035 5510 .055 6340 .035 6940 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5260 6940 130 550 230 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5260 470 6940 12560 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.57 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n -Val. 0.035 E.G. Elev (ft) 450.59 Reach Len. (ft) 130.00 550.00 230.00 Crit W.S. (ft) Flow Area (sq ft) 5915.40 E.G. Slope (ft /ft) 0.000047 Area (sq ft) 5915.40 Q Total (cfs) 7870.00 Flow (cfs) 7870.00 Top Width (ft) 607.59 Top Width (ft) 607.59 Vel Total (ft /s) 1.33 Avg. Vel. (ft /s) 1.33 Max Chl Dpth (ft) 19.07 Hydr. Depth (ft) 9.74 Conv. Total (cfs) 1150991.9 Conv. (cfs) 1150991.9 Length Wtd. (ft) 382.15 Wetted Per. (ft) 614.59 Min Ch E1 (ft) 431.50 Shear (lb /sq ft) 0.03 Alpha 1.00 Stream Power (lb /ft s) 0.04 Proposed Condition HEGR4S Model - Page 51 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 162.90 477.83 18.94 C & E Loss (ft) 0.01 Cum SA (acres) 53.91 40.20 23.28 Warning - Divided flow computed for this cross - section. Q Total (cfs) 7432.00 Flow (cfs) Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat 616480.2 Conv. (cfs) Length Wtd. (ft) W.S. Elev (ft) 453.94 Element Left OB Channel Right OB Vel Head (ft) 0.11 Wt. n -Val. 0.035 E.G. Elev (ft) 454.05 Reach Len. (ft) 130.00 550.00 230.00 Crit W.S. (ft) Flow Area (sq ft) 8489.44 E.G. Slope (ft /ft) 0.000173 Area (sq ft) 8489.44 Q Total (cfs) 22468.00 Flow (cfs) 22468.00 Top Width (ft) 1060.99 Top Width (ft) 1060.99 Vel Total (ft /s) 2.65 Avg. Vel. (ft /s) 2.65 Max Chl Dpth (ft) 22.44 Hydr. Depth (ft) 8.00 Conv. Total (cfs) 1707544.8 Conv. (cfs) 1707544.8 Length Wtd. (ft) 375.80 Wetted Per. (ft) 1068.82 Min Ch E1 (ft) 431.50 Shear (lb /sq ft) 0.09 Alpha 1.00 Stream Power (lb /ft s) 0.23 Frctn Loss (ft)- 0.11 Cum Volume (acre -ft) 289.08 590.65 105.32 C & E Loss (ft) 0.03 Cum SA (acres) 56.19 49.33 60.08 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 23800 INPUT Description: Station Elevation Data num= 52 Sta Elev Sta Elev Sta Elev 1000 465 1110 460 1190 457 1480 455 1590 454 1740 453 2110 450 2820 449 2850 449 3350 450 3410 450 3440 451 4140 451 4190 450.4 4240 451 5280 451 5380 451 5468.04 451.42 5694.28 452 5820 454 5940 454 6390 454 6410 455 6510 455 6640 440 6660 433.3 6680 440 7070 453 7239 454 7240 454 7470 460 7550 470 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val 1000 .055 5468.04 .035 5694.28 .055 Bank Sta: Left Right Lengths: Left Channel 6610 7000 720 1430 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5467 470 7550 7550 470 Sta Elev 1280 456 1860 452 3280 450 3540 451 4380 451 5535 434.68 5970 455 6610 450 6700 450 7280 450 Sta n Val Sta n Val 6610 .035 7000 .055 Right Coeff Contr. Expan. 680 .1 .3 Sta Elev 1340 455 1950 451 3300 450 3630 451 4900 450.6 5625 434.68 6310 455 6620 450 7000 454 7350 455 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.47 Element Vel Head (ft) 0.09 Wt. n -Val. E.G. Elev (ft) 450.56 Reach Len. (ft) Crit W.S. (ft) 784.43 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000145 Area (sq ft) Q Total (cfs) 7432.00 Flow (cfs) Top Width (ft) 362.09 Top Width (ft) Vel Total (ft /s) 2.32 Avg. Vel. (ft /s) Max Chl Dpth (ft) 17.17 Hydr. Depth (ft) Conv. Total (cfs) 616480.2 Conv. (cfs) Length Wtd. (ft) 1137.90 Wetted Per. (ft) Left OB Channel Right OB 0.035 0.035 0.055 720.00 1430.00 680.00 2420.32 784.43 2.64 2420.32 784.43 2.64 6114.91 1316.77 0.33 225.68 125.16 11.25 2.53 1.68 0.12 10.72 6.27 0.23 507228.2 109225.0 27.0 229.58 132.07 11.29 Proposed Condition HEC -RAS Model - Page 52 Min Ch E1 (ft) 433.30 Shear (lb /sq ft) 0.10 0.05 0.00 Alpha 1.07 Stream Power (lb /ft s) 0.24 0.09 0.00 Frctn Loss (ft) 0.11 Cum Volume (acre -ft) 159.29 435.53 18.93 C & E Loss (ft) 0.01 Cum SA (acres) 53.57 35.57 23.25 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 453.46 Element Left OB Channel Right OB Vel Head (ft) 0.44 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 453.90 Reach Len. (ft) 720.00 1430.00 680.00 Crit W.S. (ft) Flow Area (sq ft) 3278.65 1495.63 169.66 E.G. Slope (ft /ft) 0.000633 Area (sq ft) 3278.65 1495.63 169.66 Q Total (cfs) 23083.00 Flow (cfs) 18780.81 4154.78 147.41 Top Width (ft) 932.30 Top Width (ft) 388.56 349.78 193.96 Vel Total (ft /s) 4.67 Avg. Vel. (ft /s) 5.73 2.78 0.87 Max Chl Dpth (ft) 20.16 Hydr. Depth (ft) 8.44 4.28 0.87 Conv. Total (cfs) 917287.8 Conv. (cfs) 746324.5 165105.3 5858.0 Length Wtd. (ft) 1137.86 Wetted Per. (ft) 394.90 356.71 194.26 Min Ch E1 (ft) . 433.30 Shear (lb /sq ft) 0.33 0.17 0.03 Alpha 1.29 Stream Power (lb /ft s) 1.88 0.46 0.03 Frctn Loss (ft) 0.56 Cum Volume (acre -ft) 284.19 527.61 104.87 C & E Loss (ft) 0.02 Cum SA (acres) 55.61 40.42 59.57 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 22370 INPUT Description: tiGhli),40*61 FROM DOWDY MODEL 89123PM.DAT - 05/21/92 Station Elevation Data num= 28 Sta Elev Sta Elev Sta Elev 1000 460 1300 449 1750 449 2950 450 3670 450 4010 449 4970 450.5 5094 450.5 5160 434.04 5320 432.5 5345 435 5360 445 5460 454.5 5870 454 6310 452.5 6610 457 6630 459.5 6780 466 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val 1000 .05 1300 .06 5094 .035 Bank Sta: Left Right Lengths: Left Channel 5094 5460 800 800 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5094 470 6780 6780 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.38 Element Vel Head (ft) 0.06 Wt. n -Val. Sta Elev Sta 1950 448 2550 4070 448 4370 5220 434.04 5280 5380 446 5405 6480 452 6550 Sta n Val Sta 5460 .055 6610 Right Coeff Contr. 400 .1 Elev 448 449.5 434.04 452.7 453.5 n Val .05 Expan. .3 Left OB Channel Right OB 0.035 Proposed Condition HEC-RAS Model - Page 53 E.G. Elev (ft) 450.44 Reach Len. (ft) 800.00 800.00 400.00 Crit W.S. (ft) Flow Area (sq ft) 3885.75 E.G. Slope (ft /ft) 0.000069 Area (sq ft) 3885.75 Q Total (cfs) 7432.00 Flow (cfs) 7432.00 Top Width (ft) 301.87 Top Width (ft) 301.87 Vel Total (ft /s) 1.91 Avg. Vel. (ft /s) 1.91 Max Chl Dpth (ft) 17.88 Hydr. Depth (ft) 12.87 Conv. Total (cfs) 894681.1 Conv. (cfs) 894681.1 Length Wtd. (ft) 800.00 Wetted Per. (ft) 307.66 Min Ch El (ft) 432.50 Shear (lb /sq ft) 0.05 Alpha 1.00 Stream Power (lb /ft s) 0.10 Frctn Loss (ft) 0.05 Cum Volume (acre -ft) 139.28 358.87 18.91 C & E Loss (ft) 0.00 Cum SA (acres) 51.70 28.56 23.16 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.95 Element Left OB Channel Right OB Vel Head (ft) 0.38 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 453.33 Reach Len. (ft) 800.00 800.00 400.00 Crit W.S. (ft) Flow Area (sq ft) 4675.59 169.88 E.G. Slope (ft /ft) 0.000388 Area (sq ft) 4675.59 169.88 Q Total (cfs) 23083.00 Flow (cfs) 23026.78 56.22 Top Width (ft)- 665.10 Top Width (ft) 318.65 346.45 Vel Total (ft /s) 4.76 Avg. Vel. (ft /s) 4.92 0.33 Max Chl Dpth (ft) 20.45 Hydr. Depth (ft) 14.67 0.49 Conv. Total (cfs) 1171724.9 Conv. (cfs) 1168871.0 2853.8 Length Wtd. (ft) 798.69 Wetted Per. (ft) 327.21 346.46 Min Ch E1 (ft) 432.50 Shear (lb /sq ft) 0.35 0.01 Alpha 1.07 Stream Power (lb /ft s) 1.71 0.00 Frctn Loss (ft) 0.27 Cum Volume (acre -ft) 257.10 426.32 102.22 C & E Loss (ft) 0.02 Cum SA (acres) 52.40 29.45 55.35 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 21560 INPUT Description: Station Elevation Data num= 54 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1200 455 1250 454 1290 454 1320 453 1360 452 1450 451 1480 450 1570 449 1800 448 2050 448.2 2500 449 2730 449 3050 448.5 3260 449 3400 449 3520 449.7 3700 450 3800 449 3900 449 3920 450 4170 448 4250 449 4280 450 4340 451 4420 451 4500 452 4820 452 4939.61 452.8 5020 432.7 5100 432.7 5140 432.58 5180 432.46 5200 432.4 5220 438 5270 454 5300 455 5340 455 5360 455 5460 454 5630 453 5780 452 5790 452 5850 451 5870 451 5880 453 5920 453 5970 453 6150 452 6220 452 6270 453 6340 455 6450 460 6540 465 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .055 4939.61 .035 5300 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 4939.61 5300 1600 1450 1150 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4939 470 6540 6540 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.34 Element Left OB Channel Right OB Vel Head (ft) 0.05 Wt. n -Val. 0.035 E.G. Elev (ft) 450.39 Reach Len. (ft) 1600.00 1450.00 1150.00 Crit W.S. (ft) Flow Area (sq ft) 4354.30 E.G. Slope (ft /ft) 0.000049 Area (sq ft) 4354.30 Q Total (cfs) 7432.00 Flow (cfs) 7432.00 Proposed Condition HEC -RAS Model - Page 54 Top Width (ft) 309.14 Top Width (ft) 309.14 Vel Total (ft /s) 1.71 Avg. Vel. (ft /s) 1.71 Max Chl Dpth (ft) 17.94 Hydr. Depth (ft) 14.09 Conv. Total (cfs) 1066997.1 Conv. (cfs) 1066997.1 Length Wtd. (ft) 1451.78 Wetted Per. (ft) 314.01 Min Ch E1 (ft) 432.40 Shear (lb /sq ft) 0.04 Alpha 1.00 Stream Power (lb /ft s) 0.07 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 139.28 283.21 18.91 C & E Loss (ft) 0.01 Cum SA (acres) 51.70 22.95 23.16 CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.73 Element Left OB Channel Right OB Vel Head (ft) 0.31 Wt. n -Val. 0.035 0.055 E.G. Elev (ft) 453.04 Reach Len. (ft) 1600.00 1450.00 1150.00 Crit W.S. (ft) Flow Area (sq ft) 5111.20 274.00 E.G. Slope (ft /ft) 0.000293 Area (sq ft) 5111.20 274.00 Q Total (cfs) 23083.00 Flow (cfs) 22988.10 94.90 Top Width (ft) 770.84 Top Width (ft) 326.12 444.73 Vel Total (ft /s) 4.29 Avg. Vel. (ft /s) 4.50 0.35 Max Chl Dpth (ft) 20.33 Hydr. Depth (ft) 15.67 0.62 Conv. Total (cfs) 1349378.4 Conv. (cfs) 1343831.0 5547.3 Length Wtd. (ft-) 1451.13 Wetted Per. (ft) 331.65 444.92 Min Ch E1 (ft) 432.40 Shear (lb /sq ft) 0.28 0.01 Alpha 1.10 Stream Power (lb /ft s) 1.27 0.00 Frctn Loss (ft) 0.29 Cum Volume (acre -ft) 257.10 336.45 100.18 C & E Loss (ft) 0.05 Cum SA (acres) 52.40 23.53 51.72 Warning - Divided flow computed for this cross - section. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19930 INPUT Description: Station Elevation Data num= 55 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 454.3 1040 450 1160 448 1190 449 1210 449 1220 448 1320 448 1330 449 1460 450 1520 450 1530 449 1900 447.2 2170 447 2280 446.2 2420 446.4 2540 447 3070 447 3240 446.3 3350 446 3360 445 3370 445 3380 446 3460 447 3750 447.5 4070 447 4090 447 4150 448 4300 448.5 4660 448.5 4960 448.5 5130 448.5 5400 448.5 5600 448.5 5700 448.5 5704 448.5 5770 432 5930 432 5996 448.5 6050 448.5 6070 448.5 6110 437 6130 432 6150 437 6190 453 6220 453 6440 452 6550 451 6650 450 6840 449 6900 449 6920 450 7030 451 7070 452 7130 453 7350 460 Manning's n Values num= 5 Sta n Val Sta n Val Sta n Val Sta n Val Sta n Val 1000 .045 5704 .035 5996 .045 6070 .035 6190 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5704 6190 800 600 550 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 5208 470 7350 7350 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Right OB Vel Head (ft) 0.02 Wt. n -Val. 0.045 0.035 0.055 E.G. Elev (ft) 450.33 Reach Len. (ft) 800.00 600.00 550.00 Crit W.S. (ft) Flow Area (sq ft) 894.16 5544.22 256.36 E.G. Slope (ft /ft) 0.000030 Area (sq ft) 894.16 5544.22 256.36 Q Total (cfs) 7432.00 Flow (cfs) 240.60 7159.35 32.05 Top Width (ft) 1308.83 Top Width (ft) 496.00 479.26 333.57 Vel Total (ft /s) 1.11 Avg. Vel. (ft /s) 0.27 1.29 0.13 Max Chl Dpth (ft) 18.30 Hydr. Depth (ft) 1.80 11.57 0.77 Conv. Total (cfs) 1347631.5 Conv. (cfs) 43628.1 1298192.6 5810.7 Proposed Condition HEC -RAS Model - Page 55 Length Wtd. (ft) 632.75 Wetted Per. (ft) 497.80 488.73 333.60 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.00 0.02 0.00 Alpha Reach Len. (ft) 1.31 Stream Power (lb /ft s) 0.00 0.03 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre -ft) 122.86 118.46 15.53 C & E Loss (ft) 0.00 Cum SA (acres) 42.59 9.83 18.76 Warning - Divided flow computed for this cross - section CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.57 Element Left OB Channel Right OB Vel Head (ft) 0.13 Wt. n -Val. 0.045 0.035 0.055 E.G. Elev (ft) 452.69 Reach Len. (ft) 800.00 600.00 550.00 Crit W.S. (ft) 447 Flow Area (sq ft) 2016.39 6634.98 1495.88 E.G. Slope (ft /ft) 0.000145 Area (sq ft) 2016.39 6634.98 1495.88 Q Total (cfs) 23083.00 Flow (cfs) 2029.29 20308.52 745.20 Top Width (ft) 1769.20 Top Width (ft) 496.00 484.91 788.29 Vel Total (ft /s) 2.27 Avg. Vel. (ft /s) 1.01 3.06 0.50 Max Chl Dpth (ft) 20.57 Hydr. Depth (ft) 4.07 13.68 1.90 Conv. Total (cfs) 1918692.4 Conv. (cfs) 168677.3 1688073.3 61941.9 Length Wtd. (ft) 648.13 Wetted Per. (ft) 500.07 494.82 788.35 Min Ch E1 (ft) 432.00 Shear (lb /sq ft) 0.04 0.12 0.02 Alpha 1.61 Stream Power (lb /ft s) 0.04 0.37 0.01 Frctn Loss (ft) 0.06 Cum Volume (acre -ft) 220.06 140.95 76.82 C & E Loss (ft) 0.03 Cum SA (acres) 43.29 10.03 35.44 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 19330 INPUT Description: Station Elevation Data Sta Elev Sta 1000 454 1050 2410 446 2450 2710 445 2860 2970 446 3020 3250 446.7 3350 3650 447 3710 4080 446 4160 4740 447 4800 5490 448 5551.8 5860 448 5870 5965 453 5975 7035 449 7135 8250 460 447 num= 61 (ft) 450.30 Element Left OB Elev Sta Elev Sta Elev Sta Elev 450 1070 448 1750 447.6 2210 447 445 2600 443 2670 443 2680 445 445 2900 444 2920 443 2960 445 446 3040 445 3070 443 3100 447 447 3500 447 3550 446 3600 444 446 3850 446 3940 447 4050 447 446 4450 446 4550 445 4700 446 447 5010 447.3 5040 448 5280 448 448 5617 431.7 5777 431.7 5842.2 448 445 5880 440 5897 431.7 5915 440 453 6205 452 6315 451 6435 450 449 7185 450 7915 455 8215 455 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .035 5551.8 .035 5965 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5551.8 5965 650 650 650 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 4000 470 8250 8250 470 CROSS SECTION OUTPUT Profile #2 -year ultimate W.S. Elev (ft) 450.30 Element Left OB Channel Right OB Vel Head (ft) 0.01 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 450.31 Reach Len. (ft) 650.00 650.00 650.00 Crit W.S. (ft) Flow Area (sq ft) 5334.24 5204.38 659.88 E.G. Slope (ft /ft) 0.000019 Area (sq ft) 5334.24 5204.38 659.88 Q Total (cfs) 7432.00 Flow (cfs) 2217.96 5148.11 65.93 Top Width (ft) 2783.74 Top Width (ft) 1551.80 402.81 829.13 Vel Total (ft /s) 0.66 Avg. Vel. (ft /s) 0.42 0.99 0.10 Proposed Condition HEGRAS Model - Page 56 Max Chl Dpth (ft) 18.60 Hydr. Depth (ft) 3.44 12.92 0.80 Conv. Total (cfs) 1725913.6 Conv. (cfs) 515071.7 1195531.4 15310.6 Length Wtd. (ft) 650.00 Wetted Per. (ft) 1555.14 413.50 829.14 Min Ch E1 (ft) 431.70 Shear (lb /sq ft) 0.00 0.01 0.00 Alpha 1.66 Stream Power (lb /ft s) 0.00 0.01 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre -ft) 65.67 44.43 9.75 C & E Loss (ft) 0.00 Cum SA (acres) 23.79 3.75 11.42 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.57 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n -Val. 0.035 0.035 0.055 E.G. Elev (ft) 452.61 Reach Len. (ft) 650.00 650.00 650.00 Crit W.S. (ft) 448 Flow Area (sq ft) 8856.62 6128.60 3234.19 E.G. Slope (ft /ft) 0.000064 Area (sq ft) 8856.62 6128.60 3234.19 Q Total (cfs) 23083.00 Flow (cfs) 9560.82 12350.68 1171.51 Top Width (ft) 3448.66 Top Width (ft) 1551.80 411.54 1485.32 Vel Total (ft /s) 1.27 Avg. Vel. (ft /s) 1.08 2.02 0.36 Max Chl Dpth (ft) 20.87 Hydr. Depth (ft) 5.71 14.89 2.18 Conv. Total (cfs) 2892244.8 Conv. (cfs) 1197947.5 1547510.1 146787.0 Length Wtd. (ft) 650.00 Wetted Per. (ft) 1557.41 422.52 1485.35 Min Ch E1 (ft) 431.70 Shear (lb /sq ft) 0.02 0.06 0.01 Alpha 1.66 Stream Power (lb /ft s) 0.02 0.12 0.00 Frctn Loss (ft) 0.09 Cum Volume (acre -ft) 120.22 53.05 46.96 C & E Loss (ft) 0.00 Cum SA (acres) 24.49 3.85 21.09 Warning - Divided flow computed for this cross - section. Warning - The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: RIVER -1 REACH: Reach -1 RS: 18440 INPUT Description: Station Elevation Data num= 31 0.035 0.045 0.055 3467.35 750.82 Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev 1000 460 1300 448 1800 448 2250 447 2300 445 2330 440 2500 440 2600 445 2750 448 5250 448 5350 450 5460 451 5480 449 5515 446 5525 440 5535 434 5545 431.4 5555 431.4 5560 447 5585 451 5700 450 5850 450 6000 448 6230 450 6500 452 6700 450 6780 447 6780 466 6940 450 7440 460 7650 470 Manning's n Values num= 3 Sta n Val Sta n Val Sta n Val 1000 .035 5480 .045 5585 .055 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 5480 5585 10000 5880 4500 .1 .3 Blocked Obstructions num= 2 Sta L Sta R Elev Sta L Sta R Elev 1000 3750 470 7650 7650 470 CROSS SECTION OUTPUT W.S. Elev (ft) Vel Head (ft) E.G. Elev (ft) Crit W.S. (ft) E.G. Slope (ft /ft) Q Total (cfs) Top Width (ft) Vel Total (ft /s) Max Chl Dpth (ft) Conv. Total (cfs) Profile #2 -year ultimate 450.22 Element 0.05 Wt. n -Val. 450.27 Reach Len. (ft) 445.78 Flow Area (sq ft) 0.000460 Area (sq ft) 7432.00 Flow (cfs) 2438.44 Top Width (ft) 1.53 Avg. Vel. (ft /s) 18.82 Hydr. Depth (ft) 346405.5 Conv. (cfs) Left OB Channel Right OB 0.035 0.045 0.055 3467.35 750.82 646.37 3467.35 750.82 646.37 5216.74 1852.00 363.25 1636.78 100.15 701.51 1.50 2.47 0.56 2.12 7.50 0.92 243152.4 86321.8 16931.3 Proposed Condition HEC-RAS Model - Page 57 Length Wtd. (ft) Wetted Per. (ft) 1639.09 115.57 704.83 Min Ch E1 (ft) 431.40 Shear (lb /sq ft) 0.06 0.19 0.03 Alpha Reach Len. (ft) 1.34 Stream Power (lb /ft s) 0.09 0.46 0.01 Frctn Loss (ft) Cum Volume (acre -ft) C & E Loss (ft) Cum SA (acres) Warning - Divided flow computed for this cross - section. CROSS SECTION OUTPUT Profile #100 -year ultimat W.S. Elev (ft) 452.43 Element Vel Head (ft) 0.08 Wt. n -Val. E.G. Elev (ft) 452.52 Reach Len. (ft) Crit W.S. (ft) 449.81 Flow Area (sq ft) E.G. Slope (ft /ft) 0.000460 Area (sq ft) Q Total (cfs) 23083.00 Flow (cfs) Top Width (ft) 3176.06 Top Width (ft) Vel Total (ft /s) 2.04 Avg. Vel. (ft /s) Max Chl Dpth (ft) 21.03 Hydr. Depth (ft) Conv. Total (cfs) 1076005.3 Conv. (cfs) Length Wtd. (ft) 39440 Wetted Per. (ft) Min Ch E1 (ft) 431.40 Shear (lb /sq ft) Alpha 1.27 Stream Power (lb /ft s) Frctn Loss (ft) 36970 Cum Volume (acre -ft) C & E Loss (ft) 34950 Cum SA (acres) .055 .06 .05 .055 .055 .06 .055 .055 .055 045 045 .06 .06 .06 045 045 .06 .06 .06 055 055 055 .07 .07 065 065 065 065 065 .07 065 065 065 065 065 065 065 .07 065 055 065 065 Warning - Divided flow computed for this cross - section. Warning - The parabolic search method failed to converge on critical depth. The program will try the cross section slice /secant method to find critical depth. SUMMARY OF MANNING'S N VALUES River:RIVER -1 Reach River Sta. n1 n2 n12 0.045 0.055 Reach -1 56940 .05 Reach -1 55590 .04 Reach -1 53350 .05 Reach -1 51350 .05 Reach -1 48000 .06 Reach -1 40650 .06 Reach -1 39540 .05 Reach -1 39490 .05 Reach -1 39440 .06 Reach -1 39290 .05 Reach -1 38200 .05 Reach -1 36970 .06 Reach -1 34950 .05 Reach -1 34850 .05 Reach -1 34260 .055 Reach -1 33470 .055 Reach -1 33145 .05 Reach -1 32725 .05 Reach -1 32305 .05 Reach -1 32230 .055 Reach -1 32215 Bridge Reach -1 32200 .055 Reach -1 32150 .055 Reach -1 31335 .05 Reach -1 30958 .05 Reach -1 30604 .05 Reach -1 30384 .05 Reach -1 30027 .05 Reach -1 29831 .05 .045 Reach -1 29651 .05 Reach -1 29124 .05 Reach -1 28890 .05 Reach -1 28720 .05 Reach -1 28492 .05 Reach -1 28168 .05 Reach -1 27992 .05 Reach -1 27748 .05 Reach -1 27449 .05 Reach -1 27165 .05 Reach -1 26880 .05 Reach -1 26830 .055 Reach -1 25770 .055 Reach -1 25530 .055 .052 .055 .055 .05 .055 .055 .055 .05 .06 .055 .06 .05 .055 055 .06 .06 055 055 055 025 025 035 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 .04 035 035 035 n3 n4 n5 n6 n7 n8 n9 n10 nil .045 .045 .045 .045 .045 .045 .045 .045 .045 .055 .055 .045 .045 .045 .055 .055 .045 .045 .045 .02 .02 .045 .045 .04 .04 .04 .04 .04 .045 .04 .04 .04 .04 .04 .04 .04 .045 .04 .035 Left OB Channel Right OB 0.035 0.045 0.055 7256.44 981.11 3059.34 7256.44 981.11 3059.34 17158.71 2812.99 3111.30 1730.00 105.00 1341.06 2.36 2.87 1.02 4.19 9.34 2.28 799846.9 131126.4 145032.0 1734.56 120.48 1346.74 0.12 0.23 0.07 0.28 0.67 0.07 058 .06 058 058 .06 045 .05 .05 .06 .05 .05 .06 055 055 .06 055 055 .06 .06 .04 055 055 055 .05 .05 .05 .05 055 055 065 .05 As .07 .07 .07 .07 .07 .07 .07 075 .07 .07 .07 .07 .07 .07 .07 055 045 045 045 045 045 045 045 045 045 045 045 045 045 Proposed Condition HEC -RAS Model - Page 58 .07 .07 .045 .07 035 .045 .04 .04 .075 .045 035 .045 035 .045 035 .045 075 .015 015 .045 Reach -1 24700 .055 .035 .055 .035 .055 Reach -1 24400 .055 .035 .055 .035 .055 Reach -1 23800 .055 .035 .055 .035 .055 Reach -1 22370 .05 .06 .035 .055 .05 Reach -1 21560 .055 .035 .055 50 50 Reach -1 19930 .045 .035 .045 .035 .055 Reach -1 19330 .035 .035 .055 980 1090 Reach -1 18440 .035 .045 .055 950 Reach -1 SUMMARY OF REACH LE NGTHS River: RIVER -1 Reach River Sta. Left Channel Right Reach -1 56940 1250 1350 1250 Reach -1 55590 2000 2240 2200 Reach -1 53350 1650 2000 1750 Reach -1 51350 3600 3350 3700 Reach -1 48000 5700 7350 2900 Reach -1 40650 1400 1110 800 Reach -1 39540 50 50 50 Reach -1 39490 50 50 50 Reach -1 39440 150 150 280 Reach -1 39290 980 1090 1110 Reach -1 38200 1150 1230 950 Reach -1 36970 2020 2020 2020 Reach -1 34950 110 100 90 Reach -1 34850 520 590 640 Reach -1 34260 830 790 250 Reach -1 33470 315 325 260 Reach -1 33145 385 420 290 Reach -1 32725 380 420 520 Reach -1 32305 55 55 55 Reach -1 32230 50 50 50 Reach -1 32215 Bridge Reach -1 32200 50 50 50 Reach -1 32150 160 170 180 Reach -1 31335 377 377 344 Reach -1 30958 303 354 302 Reach -1 30604 269 220 319 Reach -1 30384 371 357 410 Reach -1 30027 148 196 299 Reach -1 29831 171 180 197 Reach -1 29651 600 527 404 Reach -1 29124 161 234 337 Reach -1 28890 153 170 194 Reach -1 28720 173 228 338 Reach -1 28492 406 324 307 Reach -1 28168 167 176 223 Reach -1 27992 213 244 309 Reach -1 27748 324 299 262 Reach -1 27449 240 284 248 Reach -1 27165 240 284 201 Reach -1 26880 32 50 479 Reach -1 26830 1030 1050 960 Reach -1 25770 240 240 240 Reach -1 25530 700 700 560 Reach -1 24700 610 350 80 Reach -1 24400 130 550 230 Reach -1 23800 720 1430 680 Reach -1 22370 800 800 400 Reach -1 21560 1600 1450 1150 Reach -1 19930 800 600 550 Reach -1 19330 650 650 650 Reach -1 18440 10000 5880 4500 SUMMARY OF C ONTRACTION AND EXPANSION COEFFICIENTS River: RIVER -1 Proposed Condition HEC -RAS Model - Page 59 Reach River Sta. Contr. Expan. Reach -1 56940 .1 .3 Reach -1 55590 .1 .3 Reach -1 53350 .1 .3 Reach -1 51350 .1 .3 Reach -1 48000 .1 .3 Reach -1 40650 .1 .3 Reach -1 39540 .1 .3 Reach -1 39490 .1 .3 Reach -1 39440 .1 .3 Reach -1 39290 .1 .3 Reach -1 38200 .1 .3 Reach -1 36970 .1 .3 Reach -1 34950 .3 .5 Reach -1 34850 .3 .5 Reach -1 34260 .3 .5 Reach -1 33470 .3 .5 Reach -1 33145 .3 .5 Reach -1 32725 .3 .5 Reach -1 32305 .5 .7 Reach -1 32230 .5 .7 Reach -1 32215 Bridge 432.00 Reach -1 32200 .5 .7 Reach -1 32150 .5 .7 Reach -1 31335 .1 .3 Reach -1 30958 .1 .3 Reach -1 30604 .1 .3 Reach -1 30384 .1 .3 Reach -1 30027 .1 .3 Reach -1 29831 .1 .3 Reach -1 29651 .1 .3 Reach -1 29124 .1 .3 Reach -1 28890 .1 .3 Reach -1 28720 .1 .3 Reach -1 28492 .1 .3 Reach -1 28168 .1 .3 Reach -1 27992 .1 .3 Reach -1 27748 .1 .3 Reach -1 27449 .1 .3 Reach -1 27165 .1 .3 Reach -1 26880 .1 .3 Reach -1 26830 .1 .3 Reach -1 25770 .1 .3 Reach -1 25530 .1 .3 Reach -1 24700 .1 .3 Reach -1 24400 .1 .3 Reach -1 23800 .1 .3 Reach -1 22370 .1 .3 Reach -1 21560 .1 .3 Reach -1 19930 .1 .3 Reach -1 19330 .1 .3 Reach -1 18440 .1 .3 Profile Output Table - Standard Table 1 Reach River Sta Q Total Min Ch E1 W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft /ft) (ft /s) (sq ft) (ft) Reach -1 18440 7432.00 431.40 450.22 445.78 450.27 0.000460 2.47 4864.54 2438.44 0.16 Reach -1 18440 23083.00 431.40 452.43 449.81 452.52 0.000460 2.87 11296.88 3176.06 0.17 Reach -1 19330 7432.00 431.70 450.30 450.31 0.000019 0.99 11198.50 2783.74 0.05 Reach -1 19330 23083.00 431.70 452.57 452.61 0.000064 2.02 18219.41 3448.66 0.09 Reach -1 19930 7432.00 432.00 450.30 450.33 0.000030 1.29 6694.74 1308.83 0.07 Reach -1 19930 23083.00 432.00 452.57 452.69 0.000145 3.06 10147.25 1769.20 0.15 Reach -1 21560 7432.00 432.40 450.34 450.39 0.000049 1.71 4354.30 309.14 0.08 Reach -1 21560 23083.00 432.40 452.73 453.04 0.000293 4.50 5385.21 770.84 0.20 Reach -1 22370 7432.00 432.50 450.38 450.44 0.000069 1.91 3885.75 301.87 0.09 Reach -1 22370 23083.00 432.50 452.95 453.33 0.000388 4.92 4845.47 665.10 0.23 Reach -1 23800 7432.00 433.30 450.47 450.56 0.000145 1.68 3207.39 362.09 0.12 Proposed Condition HEC-R4S Model - Page 60 Reach -1 23800 23083.00 433.30 453.46 453.90 0.000633 2.78 4943.94 932.30 0.24 Reach -1 24400 7870.00 431.50 450.57 450.59 0.000047 1.33 5915.40 607.59 0.08 Reach -1 24400 22468.00 431.50 453.94 454.05 0.000173 2.65 8489.44 1060.99 0.16 Reach -1 24700 7870.00 433.90 450.55 450.65 0.000155 1.92 3276.81 340.68 0.13 Reach -1 24700 22468.00 433.90 453.90 454.24 0.000501 4.27 4813.86 560.57 0.24 Reach -1 25530 7870.00 434.40 450.64 450.81 0.000261 3.34 2352.78 213.87 0.18 Reach -1 25530 22468.00 434.40 454.05 454.85 0.000962 7.19 3126.24 239.66 0.35 Reach -1 25770 7870.00 434.60 450.75 450.86 0.000158 2.71 2901.81 249.21 0.14 Reach -1 25770 22468.00 434.60 454.53 455.05 0.000557 5.77 3897.10 276.81 0.27 Reach -1 26830 7870.00 436.30 450.94 451.13 0.000362 3.46 2272.14 245.83 0.20 Reach -1 26830 22468.00 436.30 455.36 455.71 0.000679 5.15 6299.76 1228.21 0.28 Reach -1 26880 7870.00 436.20 451.01 451.15 0.000367 2.99 2628.84 276.59 0.17 Reach -1 26880 22468.00 436.20 455.42 455.81 0.001179 5.19 5223.30 1352.94 0.28 Reach -1 27165 7870.00 436.10 451.13 451.27 0.000514 3.50 3587.74 1189.70 0.20 Reach -1 27165 22468.00 436.10 455.91 455.99 0.000350 2.92 9971.81 1439.14 0.15 Reach -1 27449 7870.00 435.60 451.25 451.42 0.000510 3.41 2988.79 1194.68 0.20 Reach -1 27449 22468.00 435.60 456.00 456.09 0.000407 2.77 9831.74 1617.91 0.17 Reach -1 27748 7870.00 435.20 451.40 451.57 0.000519 3.43 2972.46 1290.66 0.20 Reach -1 27748 22468.00 435.20 456.11 456.21 0.000404 2.96 9541.51 1474.77 0.16 Reach -1 27992 7870.00 435.60 451.60 451.66 0.000216 2.26 4947.78 1229.11 0.13 Reach -1 27992 22468.00 435.60 456.23 456.29 0.000242 2.40 10947.85 1366.89 0.12 Reach -1 28168 7870.00 436.60 451.67 451.70 0.000135 1.74 5817.44 1180.01 0.10 Reach -1 28168 22468.00 436.60 456.28 456.34 0.000160 1.89 11618.78 1346.71 0.10 Reach -1 28492 7870.00 436.30 451.71 451.74 0.000131 1.71 5634.38 1091.33 0.10 Reach -1 28492 22468.00 436.30 456.32 456.39 0.000162 1.90 11018.68 1251.92 0.10 Reach -1 28720 7870.00 436.80 451.74 451.79 0.000169 1.93 5074.45 986.79 0.11 Reach -1 28720 22468.00 436.80 456.37 456.45 0.000209 2.27 9935.72 1120.15 0.12 Reach -1 28890 7870.00 437.10 451.70 451.89 0.000801 3.75 2681.38 811.84 0.24 Reach -1 28890 22468.00 437.10 456.38 456.53 0.000639 3.52 7515.98 1095.86 0.20 Reach -1 29124 7870.00 437.40 451.84 452.06 0.000578 3.81 2068.09 232.47 0.22 Reach -1 29124 22468.00 437.40 456.42 456.78 0.000729 5.36 5685.48 966.17 0.28 Reach -1 29651 7870.00 438.06 452.20 444.94 452.38 0.000607 3.49 2748.58 709.08 0.21 Reach -1 29651 22468.00 438.06 456.94 449.74 457.15 0.000703 4.12 6352.44 945.67 0.22 Reach -1 29831 7870.00 438.14 452.38 445.37 452.47 0.000395 2.75 3340.06 702.49 0.17 Reach -1 29831 22468.00 438.14 457.10 450.78 457.26 0.000458 3.21 7032.25 947.95 0.17 Reach -1 30027 7870.00 438.23 452.43 452.61 0.000699 3.60 2501.95 472.43 0.22 Reach -1 30027 22468.00 438.23 457.15 457.47 0.001176 4.89 5082.19 631.87 0.27 Reach -1 30384 7870.00 438.14 452.69 452.92 0.000945 3.95 2076.66 297.64 0.25 Reach -1 30384 22468.00 438.14 457.56 458.09 0.001984 6.00 3866.46 467.42 0.34 Reach -1 30604 7870.00 438.55 452.91 453.20 0.001371 4.48 1962.42 355.92 0.29 Reach -1 30604 22468.00 438.55 458.15 458.55 0.001732 5.66 5130.19 929.75 0.32 Reach -1 30958 7870.00 438.55 453.40 453.49 0.000545 3.21 3596.23 812.41 0.20 Reach -1 30958 22468.00 438.55 458.72 458.82 0.000402 2.48 8786.07 1216.03 0.14 Reach -1 31335 7870.00 438.55 453.40 454.05 0.003033 7.20 1595.18 577.21 0.45 Reach -1 31335 22468.00 438.55 458.85 459.06 0.000948 4.61 6520.36 1074.87 0.25 Reach -1 32150 7870.00 437.00 453.87 454.34 0.000600 5.46 1470.09 139.83 0.26 Reach -1 32150 22468.00 437.00 458.61 460.38 0.001839 10.90 2650.29 682.35 0.47 Reach -1 32200 7870.00 435.00 453.82 454.59 0.000951 7.15 1134.52 126.70 0.38 Reach -1 32200 22468.00 435.00 458.54 460.88 0.002584 12.57 1846.22 174.35 0.62 Reach -1 32215 Bridge Reach -1 32230 7870.00 435.00 453.88 446.43 454.64 0.000935 7.10 1142.59 127.35 0.38 Reach -1 32230 22468.00 435.00 458.89 455.17 461.09 0.002397 12.17 1908.10 177.87 0.60 Reach -1 32305 7870.00 437.70 453.65 455.57 0.009028 11.26 752.75 139.80 0.74 Reach -1 32305 22468.00 437.70 458.87 461.95 0.010720 15.07 1871.44 295.79 0.85 Reach -1 32725 7870.00 438.20 456.78 457.05 0.001057 4.69 2416.80 546.69 0.27 Reach -1 32725 22468.00 438.20 463.34 463.48 0.000581 3.91 8573.93 1406.12 0.21 Reach -1 33145 5645.00 438.40 457.37 457.46 0.000687 2.46 2297.13 347.25 0.17 Reach -1 33145 16681.00 438.40 463.60 463.74 0.000779 3.16 5799.11 941.37 0.19 Reach -1 33470 5645.00 439.00 457.53 457.69 0.000523 3.19 1767.79 243.61 0.21 Reach -1 33470 16681.00 439.00 463.81 463.96 0.000567 3.35 6159.18 1066.39 0.20 Reach -1 34260 5645.00 438.80 458.01 458.08 0.000427 2.19 2572.23 397.15 0.15 Reach -1 34260 16681.00 438.80 464.20 464.33 0.000421 2.87 6033.54 803.85 0.17 Reach -1 34850 5645.00 439.30 458.26 458.64 0.001230 4.95 1140.97 117.93 0.28 Reach -1 34850 16681.00 439.30 464.47 464.94 0.001691 6.16 3815.99 864.51 0.34 Reach -1 34950 5645.00 439.30 458.39 458.76 0.001184 4.88 1156.84 118.63 0.28 Proposed Condition HEC -kAS Model - Page 61 Reach -1 34950 16681.00 439.30 464.98 465.14 0.000739 4.14 6996.72 1897.28 0.22 Reach -1 36970 5645.00 440.00 460.94 461.28 0.001308 4.85 1431.44 344.53 0.27 Reach -1 36970 16681.00 440.00 466.66 466.90 0.001016 5.02 5778.45 1500.38 0.26 Reach -1 38200 5645.00 441.00 461.86 461.94 0.000298 2.60 2966.49 666.49 0.14 Reach -1 38200 16681.00 441.00 467.37 467.45 0.000277 2.92 8857.16 1263.33 0.14 Reach -1 39290 5645.00 441.88 462.20 462.30 0.000340 2.87 2934.55 703.27 0.15 Reach -1 39290 16681.00 441.88 467.65 467.75 0.000272 3.30 7877.32 1058.51 0.15 Reach -1 39440 5645.00 442.00 462.11 462.46 0.000903 4.76 1186.36 104.50 0.25 Reach -1 39440 16681.00 442.00 467.43 467.99 0.001202 6.92 4149.97 900.64 0.30 Reach -1 39490 5645.00 442.00 462.37 462.51 0.000465 3.04 1858.83 207.23 0.18 Reach -1 39490 16681.00 442.00 467.77 468.06 0.000753 4.54 4228.67 569.41 0.24 Reach -1 39540 5645.00 442.00 462.26 462.60 0.000871 4.70 1202.33 105.18 0.24 Reach -1 39540 16681.00 442.00 467.70 468.15 0.001002 6.39 4397.62 920.74 0.28 Reach -1 40650 5645.00 440.00 463.21 463.58 0.000885 4.96 1214.95 125.84 0.24 Reach -1 40650 16681.00 440.00 468.81 469.32 0.001135 6.91 4160.90 849.48 0.28 Reach -1 48000 2994.00 445.60 466.97 467.05 0.000218 2.45 1773.16 549.55 0.12 Reach -1 48000 10837.00 445.60 472.02 472.08 0.000189 2.83 8305.28 1592.83 0.12 Reach -1 51350 3166.00 446.50 467.55 467.62 0.000136 2.08 1523.47 110.31 0.10 Reach -1 51350 11721.00 446.50 472.97 473.05 0.000420 2.64 6509.88 1837.80 0.16 Reach -1 53350 3166.00 448.00 467.81 467.86 0.000113 1.96 1836.38 210.20 0.09 Reach -1 53350 11721.00 448.00 473.51 473.63 0.000235 3.56 7929.71 3269.18 0.14 Reach -1 55590 2700.00 452.40 468.17 468.33 0.000494 3.20 842.69 81.87 0.18 Reach -1 55590 12101.00 452.40 474.27 474.62 0.000952 5.76 4645.38 1630.46 0.26 Reach -1 56940 2700.00 449.00 468.73 468.86 0.000317 2.95 981.01 98.99 0.15 Reach -1 56940 12101.00 449.00 475.41 475.72 0.000745 5.54 5112.30 2175.35 0.23 Profile Outuut Table - Standard Table 2 Reach River Sta E.G. Elev W.S. Elev Vel Head Frctn Loss C 6 E Loss (ft) (ft) (ft) (ft) (ft) Reach -1 18440 450.27 450.22 0.05 Reach -1 18440 452.52 452.43 0.08 Reach -1 19330 450.31 450.30 0.01 0.03 0.00 Reach -1 19330 452.61 452.57 0.04 0.09 0.00 Reach -1 19930 450.33 450.30 0.02 0.01 0.00 Reach -1 19930 452.69 452.57 0.13 0.06 0.03 Reach -1 21560 450.39 450.34 0.05 0.06 0.01 Reach -1 21560 453.04 452.73 0.31 0.29 0.05 Reach -1 22370 450.44 450.38 0.06 0.05 0.00 Reach -1 22370 453.33 452.95 0.38 0.27 0.02 Reach -1 23800 450.56 450.47 0.09 0.11 0.01 Reach -1 23800 453.90 453.46 0.44 0.56 0.02 Reach -1 24400 450.59 450.57 0.03 0.03 0.01 Reach -1 24400 454.05 453.94 0.11 0.11 0.03 Reach -1 24700 450.65 450.55 0.09 0.04 0.02 Reach -1 24700 454.24 453.90 0.34 0.12 0.07 Reach -1 25530 450.81 450.64 0.17 0.14 0.02 Reach -1 25530 454.85 454.05 0.80 0.47 0.14 Reach -1 25770 450.86 450.75 0.11 0.05 0.01 Reach -1 25770 455.05 454.53 0.52 0.17 0.03 Reach -1 26830 451.13 450.94 0.19 0.24 0.02 Reach -1 26830 455.71 455.36 0.34 0.64 0.02 Reach -1 26880 451.15 451.01 0.14 0.02 0.00 Reach -1 26880 455.81 455.42 0.39 0.09 0.01 Reach -1 27165 451.27 451.13 0.14 0.12 0.00 Reach -1 27165 455.99 455.91 0.09 0.15 0.03 Reach -1 27449 451.42 451.25 0.17 0.14 0.01 Reach -1 27449 456.09 456.00 0.09 0.10 0.00 Reach -1 27748 451.57 451.40 0.17 0.15 0.00 Reach -1 27748 456.21 456.11 0.10 0.11 0.00 Reach -1 27992 451.66 451.60 0.06 0.08 0.01 Reach -1 27992 456.29 456.23 0.07 0.09 0.00 Q Left Q Channel Q Right Top Width (cfs) (cfs) (cfs) (ft) 5216.74 1852.00 363.25 2438.44 17158.71 2812.99 3111.30 3176.06 2217.96 5148.11 65.93 2783.74 9560.82 12350.68 1171.51 3448.66 240.60 7159.35 32.05 1308.83 2029.29 20308.52 745.20 1769.20 7432.00 309.14 22988.10 94.90 770.84 7432.00 301.87 23026.78 56.22 665.10 6114.91 1316.77 0.33 362.09 18780.81 4154.78 147.41 932.30 7870.00 607.59 22468.00 1060.99 6105.03 1764.97 340.68 L6650.83 5817.17 560.57 7870.00 213.87 22468.00 239.66 7870.00 249.21 22468.00 276.81 7870.00 245.83 18379.93 4088.07 1228.21 7870.00 276.59 20929.79 1538.21 1352.94 5305.31 2564.69 1189.70 7081.60 15386.40 1439.14 7285.05 584.95 1194.68 9687.75 12780.25 1617.91 7332.25 537.75 1290.66 10005.46 12462.54 1474.77 5678.28 2191.72 1229.11 9336.22 13131.78 1366.89 Proposed Condition HEC -RAS Model - Page 62 Reach -1 28168 451.70 451.67 0.03 0.03 0.00 3718.45 4151.55 1180.01 Reach -1 28168 456.34 456.28 0.06 0.04 0.00 6410.73 16057.27 1346.71 Reach -1 28492 451.74 451.71 0.03 0.04 0.00 3584.54 4285.46 1091.33 Reach -1 28492 456.39 456.32 0.06 0.05 0.00 6274.33 16193.67 1251.92 Reach -1 28720 451.79 451.74 0.04 0.04 0.00 3977.38 3892.62 986.79 Reach -1 28720 456.45 456.37 0.08 0.06 0.00 7439.07 15028.93 1120.15 Reach -1 28890 451.89 451.70 0.19 0.06 0.04 6423.75 1446.25 811.84 Reach -1 28890 456.53 456.38 0.15 0.06 0.02 10200.87 12267.13 1095.86 Reach -1 29124 452.06 451.84 0.22 0.16 0.01 7870.00 232.47 Reach -1 29124 456.78 456.42 0.36 0.19 0.06 17375.62 5092.38 966.17 Reach -1 29651 452.38 452.20 0.17 0.31 0.01 7094.70 775.30 709.08 Reach -1 29651 457.15 456.94 0.21 0.35 0.01 13692.32 8775.68 945.67 Reach -1 29831 452.47 452.38 0.10 0.09 0.01 5240.83 2629.17 702.49 Reach -1 29831 457.26 457.10 0.16 0.11 0.01 10084.73 12383.27 947.95 Reach -1 30027 452.61 452.43 0.18 0.11 0.03 7078.24 791.76 472.43 Reach -1 30027 457.47 457.15 0.32 0.17 0.05 15858.38 6609.62 631.87 Reach -1 30384 452.92 452.69 0.23 0.29 0.01 6779.78 1090.22 297.64 Reach -1 30384 458.09 457.56 0.53 0.56 0.06 17979.79 4488.22 467.42 Reach -1 30604 453.20 452.91 0.29 0.26 0.02 7234.93 635.07 355.92 Reach -1 30604 458.55 458.15 0.40 0.45 0.01 17068.12 5399.88 929.75 Reach -1 30958 453.49 453.40 0.09 0.27 0.02 2875.63 4994.37 812.41 Reach -1 30958 458.82 458.72 0.10 0.24 0.03 4005.06 18462.94 1216.03 Reach -1 31335 454.05 453.40 0.65 0.39 0.17 6113.39 1756.61 577.21 Reach -1 31335 459.06 458.85 0.21 0.21 0.03 7060.60 15407.40 1074.87 Reach -1 32150 454.34 453.87 0.46 0.20 0.09 7847.36 22.64 139.83 Reach -1 32150 460.38 458.61 1.77 0.22 1.10 21541.81 926.19 682.35 Reach -1 32200 454.59 453.82 0.77 0.04 0.22 7508.98 361.02 126.70 Reach -1 32200 460.88 458.54 2.34 0.11 0.40 19812.22 2655.78 174.35 Reach -1 32215 Bridge Reach -1 32230 454.64 453.88 0.76 0.00 0.00 7500.96 369.04 127.35 Reach -1 32230 461.09 458.89 2.19 0.00 0.00 19719.30 2748.70 177.87 Reach -1 32305 455.57 453.65 1.92 0.12 0.81 7656.73 213.26 139.80 Reach -1 32305 461.95 458.87 3.07 0.24 0.62 19127.32 3340.68 295.79 Reach -1 32725 457.05 456.78 0.27 0.98 0.50 1884.46 5801.18 184.36 546.69 Reach -1 32725 463.48 463.34 0.14 0.66 0.88 8609.32 9246.07 4612.61 1406.12 Reach -1 33145 457.46 457.37 0.09 0.36 0.05 5645.00 347.25 Reach -1 33145 463.74 463.60 0.15 0.26 0.00 372.70 15442.34 865.96 941.37 Reach -1 33470 457.69 457.53 0.16 0.19 0.03 5645.00 243.61 Reach -1 33470 463.96 463.81 0.15 0.21 0.00 945.71 13536.03 2199.26 1066.39 Reach -1 34260 458.08 458.01 0.07 0.37 0.03 5645.00 397.15 Reach -1 34260 464.33 464.20 0.13 0.37 0.01 12.66 16398.75 269.59 803.85 Reach -1 34850 458.64 458.26 0.38 0.40 0.15 5645.00 117.93 Reach -1 34850 464.94 464.47 0.47 0.44 0.17 3776.87 12904.13 864.51 Reach -1 34950 458.76 458.39 0.37 0.12 0.00 5645.00 118.63 Reach -1 34950 465.14 464.98 0.16 0.11 0.09 7572.85 9108.15 1897.28 Reach -1 36970 461.28 460.94 0.34 2.51 0.00 5230.89 414.11 344.53 Reach -1 36970 466.90 466.66 0.25 1.74 0.03 161.07 9516.39 7003.54 1500.38 Reach -1 38200 461.94 461.86 0.08 0.64 0.03 25.50 3554.92 2064.58 666.49 Reach -1 38200 467.45 467.37 0.08 0.53 0.02 2903.80 6380.78 7396.41 1263.33 Reach -1 39290 462.30 462.20 0.10 0.35 0.01 40.67 4202.90 1401.44 703.27 Reach -1 39290 467.75 467.65 0.10 0.30 0.01 1781.62 7488.57 7410.81 1058.51 Reach -1 39440 462.46 462.11 0.35 0.09 0.08 5645.00 104.50 Reach -1 39440 467.99 467.43 0.56 0.09 0.14 1751.23 12224.96 2704.82 900.64 Reach -1 39490 462.51 462.37 0.14 0.03 0.02 0.01 5644.99 207.23 Reach -1 39490 468.06 467.77 0.29 0.05 0.03 2201.53 14368.47 111.00 569.41 Reach -1 39540 462.60 462.26 0.34 0.03 0.06 5645.00 105.18 Reach -1 39540 468.15 467.70 0.46 0.04 0.05 1810.69 11482.58 3387.73 920.74 Reach -1 40650 463.58 463.21 0.37 0.97 0.01 5400.71 244.29 125.84 Reach -1 40650 469.32 468.81 0.51 1.15 0.02 2149.06 10780.78 3751.16 849.48 Reach -1 48000 467.05 466.97 0.08 3.44 0.03 534.27 2408.03 51.70 549.55 Proposed Condition HEC-RAS Model - Page 63 Reach -1 48000 472.08 472.02 0.05 2.71 0.05 4137.02 3857.27 2842.71 1592.83 Reach -1 51350 467.62 467.55 0.07 0.57 0.00 3166.00 110.31 Reach -1 51350 473.05 472.97 0.08 0.96 0.01 4218.77 7489.52 12.70 1837.80 Reach -1 53350 467.86 467.81 0.05 0.24 0.00 448.86 2716.90 0.24 210.20 Reach -1 53350 473.63 473.51 0.12 0.58 0.01 4580.64 6956.66 183.69 3269.18 Reach -1 55590 468.33 468.17 0.16 0.44 0.03 2700.00 81.87 Reach -1 55590 474.62 474.27 0.35 0.91 0.07 4023.98 7958.97 118.04 1630.46 Reach -1 56940 468.86 468.73 0.13 0.53 0.00 108.35 2591.65 98.99 Reach -1 56940 475.72 475.41 0.31 1.10 0.00 4313.25 7670.04 117.71 2175.35 Proposed Condition HEC -RAS Model - Page 64 Appendix G Digital Input Data Files on Disk