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FS9906-SY 991025Conditional LetSet of Map For Revision Cottonwood Creek Coppell High School Coppel, Texas Revised Date 25, October MORRISON HYDROLOGY EN'GINEERING, INC.: ZI0 ARNOLD I~ETRO FAX ARLINGTON. TEXAS 76010 (817) 461-0321 (817) 274 1338 Morrison Hydrology Engineering, Inc. Flood Study of Cottonwood Creek At Coppell High School City of Coppell, Texas October 2& 1999 Page Table of Contents Introduction Hydraulic Analysis Effective Hydraulic Model Existing Condition Hydraulic Model Proposed Condition Hydraulic Model Ultimate Condition flows in Existing and Proposed Condition Hydraulic Models Storage Models Tables 1. Comparison Between Existing and Proposed Conditions ~vith Existing Discharge 2, Comparison Between E.'dsting and Proposed Conditions with Ultimate Discharge Appendices 1. Effective Flood Insurance Study Information · Letter of Map Revision approval for FLOODPLllN PZCL-L'~L4 TION COTTON~DOD BRANCH & DENTON CREEK CiTY OF COPPELL, D..ILL4S ('OC'~Ft~ IEYIS r'OL&2~iE 1 by Dowdey Anderson and Associates, Inc.. 16250 Dallas Pa~vay. Suite 100, Dallas, Texas 75248, · Duplication of HEC2 model from above study 2. Existing Condition · FIEC2 floodplain and floodway models · HEC2 Floodplain model with ultimate flows 3. Proposed Conditions · HEC2 floodplain and floodway models · Floodplain and Hoodway Delineation · Water Surface Profiles · Cross Section plot of existing and proposed condition overlays · HEC2 Floodplain model with ultimate flows 4 Storage Models 5. FEMA Forms Morrison Hydrology Engineering, Inc. Flood Stud), of Cottonwood ('reek At Coppell High School Ci0. of Coppell, Texas October 25. 1999 Page -2- Introduction The purpose of this study is to analyze Cottonwood Creek through the subject area in order to detercrone the 100-year existing conditions flood elevations and a proposed condition to reduce the floodplain by excavation and fill in the overbank area. Survey dam needed for this project was provided the Glenn Engineering. This report will be submitted to the City of Coppell and to the Federal Emergency Managemere Agency_ (FEMA) for review and approval as a Conditional Letter of Map Revision. Hydraulic Analysis Effet~iveModel The Ci~ of Coppell provided a copy of Letter of a Map Revision approval for P7~OODPL4LV RECL~L 17YON COTTON~'OOD BRANCH & DENTON CREEK CI'I]: OF COPPELL, DALLAS CO6~VD; TEU1S I OLU.'~IE 1 by Dowdey Anderson and Associates. Inc.. 16250 Dallas Parkway. Suite 100. Dallas, Texas 75248, This information was used as the FEMA Effective model, The above model was duplicated on in-house computers. Existing Condition Model Using the Duplicate Effective Flood model on in-house computers. topographic maps, and SUB'ey the Duplicate model was medified by adding survey data at cross sections 331+16. 335+60. 340+75. 344+72. 348+22. 354+60. 355+40. and 356+90. ~I]fis existing condition model produced different results that the FEMA Effective model 100-year flood elevations. The following is a surarna~' of the differences between the existing condition and the FEMA Effective 100-year flood elevations, Morrison Hydrolo~y Engineering. lnc Flood Study of Cottonwood Creek At Coppell High School Ci.~, of Coppetl, Texas .4ugu~l 2& 1999 Page -3- Effective Existing Diff. FEMA Condition Sect, Discharge 100Yr. Velocity 100Yr. Velodty 100Yr. No. Cfs Elev. fps Elev. fps Elev. 32816 7300 463,39 6.66 463.39 6.66 0 32916 7300 463.25 7.41 463.25 7.41 0 33016 7300 463.34 7.33 463.34 7.33 0 33116 7300 463.82 5.97 463,96 10.69 0,13 33560 7300 464,82 10.77 467.06 6.81 2.23 34075 7300 467.18 5.45 468,31 5.13 1.13 34472 7300 467.89 3.66 468.94 4.07 1.04 34822 7300 468.25 4.62 469.18 2,79 0.93 35460 7300 469.54 4.66 35540 7300 469.73 3,83 35690 7300 470.03 3.74 6710 7300 470.03 4.88 470.46 4.2 0.43 8000 7300 473,18 4.95 473.07 5.14 0.19 9430 6?00 477.16 5,23 477.21 5.16 0.05 9494 6700 477,5 14.66 477.5 14.66 0 9526 6700 479.41 11.24 479.41 11.24 0 9590 6700 481.95 1.96 481.95 1.96 0 10120 6700 481.85 11.09 481.85 11.09 10120 6700 482.68 8.97 482.68 8,97 0 Proposed Condition Model An initial model was completed by reviex~ing the proposed project. coordinaling ~th the project engineer_ and developing an initial scheme for addressing potential flood level incmase-s and/or erosive velocity conditions. This model was created by modi~'ing the existing condition cross sections as necessary to develop a proposed hydraulic medcl of the development. A hydraulic computer anal?csis of the above conditions was then completed and compared to the existing condition flood levels and velocities to determine if there am any increases in lO0-year flood levels or erosive velocities. This model was then coorditmtcd with the pnYject engineer before a final model was completed. Once the project engineer was satisfied x~ith the preliminary reclamation design completed above the following procedure was followed: Where loO-year flood levels increase or where erosive conditions exist in the prcIiminaD' design. this design was modified to eliminate these conditions This process was continued until these a~'ersc conditions are adequately addressed. Morrison Hydrology Engineering, Inc. Flood Study' of Cottonwood Creek At Coppell High School City of Coppell, Texas October 25, 1999 Page -4- A final floodplain and floodway model was developed that meets the ci~ and FEMA requirements. Based on the above data the following was completed: a. Water Surface Profile Plots b. Cross Section Plots c. Floodplain and floodway Delineation d Computer pnntouts of hydmuiic models The changes made to develop a final model is shown below: No changes were made to or dow~Lm-eam of Cross Section 33016. Cross Section 33116 was excavated and filled as shown on the plot in appendix 3. ineffective flow was established. No other changes were made. Cross Section 33560 was excavated and filled as shown on the plot on appendix 3. The 4:1 slope in the ddght is to be mamtained at a Manning Roughness value of 003. This will reqmre mowing the area twice each year. and removing trees and brush. Cross Section 34075 was excavated and filled as shown on the plot on appendix 3. The 4:1 slope in the right is to be mamtained at a Manrang Roughness value of 0.03. Tl~s will require mowing the area twice each year, and removing trees and brush. Cross Section 344-72 was excavated and filled as shown on the plot on appendix 3. The 4:1 slope in the right is to be maintained ',at a Manning Roughness value of 0. 03 This will require mowing the area twice each year. and remo,Ang trees and hush. Cross Section 34822 was excavated and filled as shown on the plot on appendix 3.. The 4: I slope in the fight is to be maintained at a 'Manning Roughness value of 0 D3. This will require mowing the area twice each year. and removing trees and brush. No changes were made upstream of the above section. Ultimate Condition flows in Existing and Proposed Condition A model was developed to represent existing and proposed conditions with ultimate flow. This was completed by using the ultimate flow from (7TY-I~'.rDE STOR3~i l~2~ TER ,~Z~.\~4GP2~/E.'vT STUDY dated January_' 1991. The starting conditions were 'also oblained from this study. Storage Models In order to determine the flood storage available in e~sting condition and proposed condition m'o models were completed and are included in appendix 4. These models considered the existing condition 100 year flood clevatinn in the existing condition and proposed condition models in order to determine storage comparisons. The table below shows this comparison. Conditional Letter of PIa?, Revision For Cottonwood Creek at Co pell High School Coppell, Texas Revised Date October 25, 1999 Morrison Hydrology Eng~needng, Inc. Flood Study of Cottomvood Creek At Coppell IFtgh School City of Coppel~ Tecas October 25, 1999 Page -1- Table of Contents h~odu~ion Hydraulic Analysis Effective Hydraulic Model Existing Condition Hydraulic Model Proposed Condition Hydraulic Model Ultimate Condition flows in Existing and Proposed Condition Hydraulic Models Storage Models Summary Tables 1. Comparison Between Existing and Proposed Conditions with Existin~ Discharge 2. Comparison Between Existing and Proposed Conditions with Ultimate Discharge Appendices 1. Effective Flood Insurance Study Information · Letter of Map Revision approval for FLOODPLAIN RECLAMATION COTTONWOOD BRANCH & DENTON CREEK CITY OF COPPELL, DAIJ. A~ COUNTY, TE.X,4S VOLUME 1 by Dowdey Anderson and Assoeiates, Inc., 16250 Dallas Paitw'ay, Suite 100, Dallas, Texas 75248. · Duplication of HEC2 model from above study 2. Existing Condition · HEC2 floodplain and floodway models · HEC2 Hoodplain model with ultimate flows 3. l:~posext Conditions · HEC2 floodplain and floodway models · FlOOdphin and Floodway Delineation · Water Surface Proffies · Cross Section plot of existing and proposed condition overlays · HEC2 Floodplain model with ultimate flows 4, Storage Models 5. FEMAForms Morrison Hydrology Engineering, Flood ~udy of Coaotmed Creek At Coppell High School City of Coppel~ Texas October 25, 1999 Page -2- Introduction The purpose of this study is to analyze Cottonwood Creek through the subject area in order to determine the 100-year existing conditions flood elevations and a proposed condition to reduce the floodplato by excavation and fill in the overbank area. Suv/ey data needed for this project was provided the Glenn Engineering. This repon will be submitted to the City of Coppell and to the Federal Emergency Managemere Agency (FEMA) for review and approval as a Conditional Let~r of Map Revision. Hydraulic Analysis Effective Model The City of Coppell p~ovided a copy of Letter of a Map Revision approval for FLOODPLAIN RECIAMA TION COTTONWOOD BRA2VCH & DENTON CRF_.EK CITY OF COPPELL, DALL4S COUNTY, TEXAS VOLUME 1 by Dowdey Anderson and Associates, In~., 16250 D~las Parkway, Suite 100, Dallas, Texas 75248. This information was used as the FEMAEffective model. The above model was duplicated on in-house computers. Existing Condition Model Using the Duplicate Effeciive Rood model on in-house computers, topog~phic maps, and survey the Duplicate model was modified by adding survey dam at cross sections 331+16, 33S+60, 340+75, 344+~2, 348+22, 354+60, 355+40, and 356+90. This existing conch'tion model produced different resul~ that the FEMA Effective model 100~year flood elevations. The following is a sumram3r of the differences between flxe oxi,~i.~ condition and the FEMA Effective 100-year flood elevations. Morrison Hydrolog~ Englnee~ng, lw~ Flood Study of Cottonwood Creek At Coppell IFtgh ~cltooi CiXy of Coppetl, Texas August 28, 1999 Page -3- Effective Exjsting Diff. FEMA Condition Sect, Discharge 100Yr. Velocity 100Yr. Velocity 100Yr. No, Cfs Elev, fps Elev. fps Elev. 32816 7300 463.39 6.66 463.39 6,66 0 32916 7300 463.25 7.41 463.25 7.41 0 33016 7300 463.34 7.33 463.34 7.33 0 33116 7300 463.82 5,97 463.96 10,69 0.13 33560 7300 464.82 10.77 467.06 6,81 2.23 34075 7300 467.16 5.45 468,31 5.13 1.13 34472 7300 467.89 3.66 468,94 4.07 1.04 34822 7300 468.25 4.62 469.18 2.79 0.93 35460 7300 469.54 4.66 35540 7300 469.73 3.83 35690 7300 470.03 3.74 6710 7300 470.03 4.88 470,46 4.2 0.43 8000 7300 473.18 4.95 473.07 5.14 O. 19 9430 6700 477.16 5.23 477.21 5.16 0,05 9494 6700 477.5 14.66 477.5 14.66 0 9526 6700 479.41 11.24 479.41 11.24 0 9590 6700 481.95 1.96 481.95 1.96 0 10120 8700 481.85 11.09 481.85 11.09 0 10120 6700 462.68 8.97 462.68 8.97 0 Proposed Condition Model An initial model was completed by reviewing the proposed project, coordinating with the project engineer, and developing an initial sGheme for addressing potential flood level increases and/or erosive velocity conditions. This model was created by modifying the existing condition cross sections as necessal7 to develop a proposed hydraulic model of the development. A hydraulic computer analysis of the above conditions was then completed and compared to the existing condition flood levels and velocities to determine if there are any increases in 100-year flood levels or erosive velocities. This model was then coordinaed with the project engineer before a final model was completed. Once the project engineer was satisfied with the prelimina~ reclamation design completed above the following l:n'ocedure was followed: Where lO0-year flood levels incnase or where erosive conditions exist in the prelimina~ design, this design was modified to eLi~nlnmce these conditions. This process was continued until these adverse cond/tions are adequately addressed. Morrison Hydroi~gy Engineering, Inc. Flood Study of Coaonwood Creek At Coppall lfsgh School City of Coppd~ Texas October 2N, 1999 A final floodplain and floodway model was developed that meets the city and FEMA requirements. Based on the above dam the following was completed: a. Water Surfac~ Proffie Plots b. Cross Section Plots c. Floo~plaln and floodway Delineation ck Computer printouts of hydraulic models The changes made te develop a final model is shown below: No changes were made to or downslxeam of Cress Section 33016. Cress Section 33116 was excavated and filled as shown on the plot in appendix 3, ineffective flow was established. No other changes were made. Cress Section 33560 was excavated and filled as shown on the plot on appendix 3. The 4:1 slope in the fight is to be nmintained at a ~anninE Roughness vahxe of 0.03. This will reqllire mowing the area twice each year, and removing trees and brush. Cress Section 34075 was excavated and filled as shown on the plot on appendix 3. The 4:1 slope in the fight is to be maintained at a Manning Roughness value of 0.03. This will require mowing the area twice each year, and removing u'ees and brush. Cross Section 34472 was excavated and filled as shown on the plot on appendix 3. The 4: 1 slope in the fight is to be r.ainlained at a Mnnning Roughness value of 0.03. This will require mowing the area twice each year, and removing trees and brush. Crass Section 34822 was excavated and filled as shown on the plot on appendix 3.. The 4:1 slope in the tight is to be lllaintained at a X~nnnln~ RoHghlles$ value of 0.03. This wi]] reqBLre mowing the area twice each year, and removing Ixees and btusk No Chan5~ were made upsH'eam of the above section. Ultimate Condition flows in gxistlng and Proposed Condition A model was developed W ~i~sent existing and proposed conditions with ultimate flow. This was completed by using the ultimate flow from CflT-W1DE STOR~r H/A TER MANA GFdvI'ENT STUD Y dated Jamtory 1991. The starting conditions were also obtained from this study. Storage Mod~l~ In order to detexmine the flood storage available in existing condition and proposed condition two moils were complet~l and are in~lude~l in ap!~ndix 4. Thes~ moils considered t~ existing condition 100 year flood elevation in the existing condition and proposed condition models in order to determine storage comparisons. The table below shows this comparison. Morrison Hydtolo~ Engineering, lnc, Flood Study of Coaonwood Creek At Coppell High School City of Coppel~ Texas October 25, 1999 Page Section 100 Yr Q Exist Exist Prop. Number cfs 100 Yr. Vol. AF Vol. AF 33016 7300 463.34 0 0 33116 7300 463.96 2.25 3.87 33560 7300 467.06 15.02 25.7 34075 7300 468.31 37.52 47.37 34472 7300 468.94 62.66 67,14 34822 7300 469.18 86.55 84,24 Lost Storage -2,31 The proposed condition storage loss is offset by excavation as shown on the floodplain drawing in aRgndix 3. This excavation consists of 2,98 Acre Ft. Summaz~ This report has presented a proposed modification of Cottonwood Creek floodplain and floodway, This modification was based on 100-year conditions, any greater frequency storm was not considen:d and is not included in this tq~ort. Therefor~ this study can not predict the iralint of a greater storm. This study assumes that all stnn'xhral elements addressed (proposed and existing) remain intact and functional according to their od~nal purpose, We recommend submittal of this report to the City of Coppell and the Federal Emergency Management Agency in sul~port of a Conditional Letter of Map Revision. Table 1 Comparison Between Existing and Proposed Condition 100 Yr. Flood Elevations and Average Channel Velocities Existing Cond. Proposed Cond. Sect. Q 1 O0 Yr Vel. 1 O0 Yr Vel. No. cfs Elev. fps Elev, fps DFrf. 1 O0 Yr Elev. 32816 7300 463.39 6.66 463.39 6.66 0 32916 7300 463,25 7.41 463.25 7.41 0 33016 7300 463,34 7.33 463.34 7.33 0 33116 7300 463.96 10.69 463.74 7.31 -0.22 33560 7300 467,06 6.81 465.23 6.56 -1.83 34075 7300 468,31 5.13 466.59 5.72 -1.72 34472 7300 468.94 4.07 467.5 7.27 -1.44 34822 7300 469.18 2.79 468.64 4.14 -0.54 35460 7300 469.54 4.66 469.5 4.72 -0.04 35540 7300 469.73 3.83 469.7 3.86 -0.03 35690 7300 470,03 3.74 470.01 3.76 -0.02 6710 7300 470.46 4.2 470.44 4.22 -0.02 8000 7300 473.07 5.14 473.07 5.13 0 9430 6700 477.21 5.16 477.21 5.16 0 9494 6700 477.5 14.66 477.5 14.66 0 9526 6700 479.41 11.24 479.41 11.24 0 9590 6700 481.95 1.96 481.95 1,96 0 10120 6700 481.85 11.09 481.85 11.09 0 10120 6700 482,68 8.97 482.68 8,97 0 Table 2 Comparison Between Existing and Proposed Condition 100 Yr. Flood Elevations and Velocities with Ultimate Condition Flows Se~. 'Q No, ms 33016 8390 33116 8390 33560 8390 34075 8390 34472 8390 34822 8390 35460 8390 35540 8390 35690 8390 6710 8390 8000 8710 9430 8250 9494 8250 9526 8250 9590 8250 10120 8250 10120 8250 Existing Condition Proposed Condition 100 Yr. Vel. 100 Yr. Vel. Elev. fps Elev. fps 463.85 7.96 463.85 7.96 464.4 10,8 464.37 7,6 467,41 7,18 465.82 6.65 468.72 53 467.1 6,05 469.35 4.11 468.06 7.06 469.58 2.92 469.05 4.15 469.93 4.71 469.84 4.85 470.11 3.93 470.94 4.02 470.41 3.85 470.35 3.91 470,82 4.31 470.78 4.36 473.44 5.42 473.44 5.41 477.72 5.46 477.72 5.46 478.59 15.43 478.59 15.43 480.49 12.36 480.49 12.36 483.56 1.93 483.56 1,93 482,83 10.62 482.83 10.62 483.28 9.52 483.28 9.52 Diff. 100 Yr. Elev. 0 -0,03 -1.59 -1.62 -1.29 -0.53 -0.09 -0.07 0 0 0 0 0 0 0 Copperstone Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 94-06-307P The Honorable Tom Morton Hayor, City of Coppell 255 Parkway Boulevard Coppe11, Texas 75019 Community: City of Coppell, Texas Community No,= 480170 Panel Affected: 0010 E Effective Date of This levlsion| JAN 25 1995 102-I~A Dear Nayor Horton| This is in response to a request for a revision to the effective Flood Insurance Study (FIS) and Natlonal Flood Insurance Program (NFIP) map for your comity. Speclflcally, this responds to a letter dated June 27, 1994, from Mr. Kenneth H. Griffin, P.E., City Engineer, City of Coppell, regarding the effective FIS report and Flood Insurance Rate Nap (FIRI~) for the City of Coppell, Texas. Mr. Griffin requested that we revise the effective FIPJf to show the effects of cb~nnellzation and construction of Parkway Boulevard along Cottonwood Branch and channellzation along Denton Creek. All data required to comp!ete our review of this request were submitted with Mr. Grlffin's June 27 letter, and a letter dated September 8, 1994, and transmlttal dated November 10, 1994, from Ms. Terl D. Jones, Dowdey, Anderson and Associates, Inc. All fees necessaz7 to process this Letter of Nap Revision (LOMR), a total of $1,475, have been received. We have completed our review of the submitted data end the flood data shown on the effective FIRM, and have revised the FIRM to modify the elevations and floodplaln and floodway boundaz7 delineations of a flood having a 1-percent probability of being equaled or exceeded in azty given year (base flood) along Cottonwood Branch, from Denton Tap Road to approximately 3,200 feet upstream of the Parkway Boulevard Bridge, and along Denton Creek, from Denton Tap Road to approximately 6,100 feet upstream. As a result of this revision, the Speclal Flood Hazard Area decreases along Denton Creek and Cottonwood Branch. The base (100-year) flood elevations (BFZs) decrease along Denton Creek and increase sllShtly along Cottonwood Branch in the vicinity of Parkway Boulevard. All increases in BFEs are located on the requester's property. The floodways for both creeks change as a result of this revision. Public . notice of the revised floodplaln andfloodway was given in the Citlzen's Advocate on September 23, 1994. The modifications are shown on the enclosed annotated copies of FIRM ,~Panel 480170 0010 E and the Floodway Data Table for Cottonwood Branch. This LOMR hereby revises this panel of the effective FIRM dated April 15, 1994, and the Flood Profile and Floodway Data Table in the FIS report dated April 15, 1994. Page 1 of ii -- .2 The followlng table is a partial lls=ing of existing and modified BFEs: Existing BFE Modified BFE Location (fee=)* Cottonwood Branch Denton Tap Road 458 458 Approxlma=ely 800 feet ups=tess of Denton Tap Road 462 463 Approxlmately 2,900 feet ups=tess of Den=on Tap Road 468 468 Denton Creek Just downstress of Denton Tap Road Approxlmately 1,400 feet upstream of Denton Tap Road Approximately 5,108 feet ups=tess of Denton Tap Road Approximately 6,100 fee= ups=ream of Denton Tap Road 458 458 462. 460 466 465 467 467 *Referenced to the Natlone1 Geodetic Vertlcal Datum, rounded to the nearest whole foot Publlc notification of =he revised BFEs wiil be given in the Citlzen's Advocate on or about February 17 and February 24, 1995. A copy of this notification is enclosed. Any request for reconsidera=ion must be based on scientific or technical data. In addition, a notice of changes will be published in the Federal Rezister. Because this LOHR will not be printed and distributed to primary users, such as local insurance agents and mortgage lenders, your community will serve as a repository for these new data. We encourage you to disseminate the information reflected by this LOMR throughout the co~unlty, so that interested persons, such as properky owners, local insurance agents, and mortgage lenders, may benefit from the information. We also encourage you to prepare a related article 'for publication in your communlty~s local newspaper. This article should describe ~h; assistance that offlcials of your community will give =o interested persons by providing these data and interpreting the NFIP maps. The revisions are effective as of the date of this letterl however, within 90 days of the second publication in the Citlzents Advocates a citizen may request that the Federal Emergency HanaZement Agency (FI~MA) reconsider the determination made by this LONR. Any request for reconslderatlon must be based on scientific or technical data.' All interested parties are on notice that, untll the 90-day period elapses, the determlna=ion to modify the BFEs presented in =his LO~ may itself be modified. Due to present funding constraints, FEHA must limit the number of physical map revisions processed. Consequently, ve will not republish the FIPa and FIS report for your community to reflect the determination of this LOMR at this time. However, when changes to FIKH Panel 480170 0010 R and the FIS Page 2 of I1 ,3 report for your community warrant a physical revision and republlcatlon in the future, the determination in this LOHR will be incorporated at that time. The floodway is provided to your community as a cool to regulate floodplaln development. Therefore, the floodway modifications described in this letter, while acceptable to FEHA, must also be acceptable to your co~mnlty and adopted by appropriate community action, as speci~ied in Paragraph 60.3(d) of the NFIP regulations. This response to Nr. Crlffin's request is based on mini~m floodplain ~--agement criteria established under the NFIP. Your community is responsible for approvlng all proposed floodplaln developments, including ~hls request, and for ensuring that necessary permits required by Federal or State law have been received. With knowledge of local conditions and in the interest of safe~y~ State and cosunlty officials may set higher standards for construction, or may limit development in ~loodplaln areas. If the :State of Texas or your community has adopted more restrictive or comprehensive floodplain management criteria, these criteria take precedence. The basis of this LOHR is, in whole or in part, a channel-modification project. ItFIP regulatlons~ as cited in Paragraph 60.3(b)(7)~ require that conlnunltles assure that the flood-carrying capacity vi~bln the altered or relocated portion of any watercourse is zalntalned. This provision is incorporated into your co~nunlty's existing floodplaln management re~ulatlons. Consequently, the ultimate responsibility for maintenance of the channel' modi£1catlon rests vlth your con.nunlty. The map panel as listed above and as revised by this letter viI1 be used for all flood insurance policies and renewals issued for your co~unlty. .A Consultation Coordination Officer (CCO) has been designated to assist your community with any difficulties you may be encountering in enacting the ~loodplain management regulations. The CCO will be the primary liaison between your con~nunity and FZHA. For information on your CCO, please contactl Nr. James LeCrot[e Director, Nitigatlon Division Federal Emergency ltanagemnnt Agency~ Region VI Federal Regional Center, Room 206 800 North Loop 288 Denton, Texas 76201-3698 (817) 898-5127 Pagc 3 of 11 Any questloas m~y be directed to your CCO, Enclosures Hr. Kenneth N. Crlf£1n, City Zn21neer City o~ Coppell ~s. Teri D. Jones Dovdeyt ~nderson and Associates, Slncer 17, · Buckley, P.E., Chief ~Hazard Identification Branch Hiclgatlon Directorate Page 4 of 11 4" / ZOINEAE ZONE X : ~M 1977 ZONE X 463 ZONE X AREA I CORPORATE ~!M 196 i:r)fiNTY BO{ )NDARY ZONE X ZONE X ZONE X ~,', MAP LEGEND R~vk~d I00 ¥ellr llondpluh~ R~vis.d 500 Ye, l:r floodproh~ ZONE ~ '2 FIRM FLOOD INSURANDE RATE MAP STREET INDEX CUI~PELL, 'IEXAS TO LOMR JAN 2 5 19e4,/ COMMUNITY.PANEL NUMBER 480170 0010 E MAP REVISED APRIL 15. 1994 CHANGES ARE MADE IN DETER~INATIONS OF BASE · COPPELL s DALLAS AND DENTON COUNTIES, TEXAS INSURANCE PROGIIAI~ FLOOD ELEVATIONS FOB THE CITY OF UNDFa THE NATIONAL FLOOD On April 15, 1994, the Federal Emergency Management Agenc7 (FEMA) identified Special Flood Hazard Areas (SFHAs) in the City of Coppell, Dallas and DanCon Counties, Texas, throu&h issuance of a Flood Insurance Hate Map (FIRM). The Miti2atlon Directorate has deCermlned that modification of the elevatlons of the flood having a 1-percent chance of occurrance in any given year (base flood) for certain locations in the City of Coppell is appropriate. The modified base (100-year) flood elevations (BFEs) revise FEMA FIRM for the community. The changes are being made pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (Publlc Law 93-234) and are in accordance with the National Flood Insurance Act of 1968, as amanded (Title XIII of the Housing and Urban Developmant Act of 1968, Publlc Law 90-/~8), 42 U.S.C. 4001-4128, and 44 CFR Part A hydraulic analysis was performed to incorporate channellzatlon and construction of the Parkway Boulevard Bridge and has resulted in a revised delineation of the regularcry floodway, a reduction in SFHA, and revised BFRs along Cottonwood Branch from the Parkway Boulevard BridSe to 3,200 feet upstream and alonS Denton Creek from approximately 4,000 feet upstream of Denton Tap Road to 4,700 feet upstream. The table below indicates the modified BFEs for several locatlons along the affected lenBths cf Cottonwood Branch and Denton Creek. Page 5 of 11 -- 2 Existing BFE ~odi£ied EFE Location (feet)* (feet)* Cottonwood Branch Denton Tap Road 458 458 Approxlnmtely 800 feet upstream of Denton Tap Road 462 463 Approxlmately 2,900 feet upstream of Denton Tap Road 468 468 Denton Creek Just downstream of Denton Tap Road 458 458 Approximately 1,400 feet upstream of Denton Tap Road 462 460 Approximately 5,100 feet upstream of Denton Tap Road 466 465 Approximately 6,100 feet upstream of Denton Tap Road 467 467 *National Ceode~ic Vertical Datum, rounded to nearest whole £oot Under the above-mentioned Acts of 1968 and 1973, the MitiBatlon Directorate must develop criteria for floodplain manaBement. For the cozmunlty to participate in the National Flood Insurance Program (NFIP), the community must use the modified BFEs to a4m4nister the floodplain management measures of the NFIP. These modi~ied BFEs will also be used to calculate the flood insurance premium rates for new buildings and their for the second layer of insurance on exlstinK buildlngs and appropriate con~ents and COntentS, Upon the second publijatlon of notlc2 of these chanZas in this newspaper, any person has 90 days in which he or she can request, through the Chief Executive Officer of the community, that the MitiBatlon Directorate reconsider the determination. Any request for reconsideration must be based on knowledge of chanBed conditions or new scientific or technical data. All interested parties are on notice tha~ until the 90-day period elapses, the Hitlgation Directorate's determination to modify the BFEs may itself be changed. Page 6 of 11 Any person having knowledge or wishing to commenl: on X:hese changes should immediately no~ify: The Honorable Tom Hotton Hayor, City o~ Coppell 255 Parkray Boulevard Coppell, Texas 75019 Page 7 of 11 FLOOD PLAIN RECLAMATION COTTONWOOD BRANCH & DENTON CREEK TY OF COPPELL AS COUNTY, TEXAS VOLUME I DOWDEY, ANDERSON & ASSOCIATES, INC. 16250 DALLAS PARKWAY SUITE 100 DALLAS, TEXAS 75248 (214) 931-0694 MAY 1994 FLOOD PLAIN RECLA~MATION FOR COTTONWOOD BRANCH AND DENTON CREEK CITY OF COPPELL DALLAS COUNTY, TEXAS PREPARED BY: DOWDEY, ANDERSON & ASSOCIATES, 1~250 DALLAS PARKWAY SUITE 100 DALLAS, TEXAS 75248 INC. MAY 1994 DOWDEY, ANDERSON AND ASSOCIATES, INC. CIVIL ENGINEI[RS 16250 DALL~6 PARIONAy SUITE 100 DALL)G, TEXAS 75248 (214) 931-0694 FAX (214) 931-9S38 May 11, 1994 Mr. Kenneth Griffin P.E. City Engineer City of Coppe!l 255 Parkway Boulevard Coppell, Texas 75019 Re: Floodplain Reclamation for Cottonwood Branch from Section 32816 to Section 34822 and Denton Creek from Section 33145 to Section 34950 City of Coppoll, Dallas County, Texas Dear Mr. Griffin: Herewith submitted is a copy of the hydraulic models prepared by our firm which analyzes the area between Cottonwood Branch and Denton Creek with the above referenced limits. The intent of the study is to obtain a Letter of Map Revision for the area previously reclaimed as referenced above. I respectfully request that you review this data and submit the request to the Federal Emergency Management Agency for their approval. Thank you for your co6peration in expediting this procedure. have any j~uestions, please contact me. William A. Mderson, wM;ajh If you TABLE OF CONTENTS of Transmittal 1 Letter .......................................... Tables of Contents ............................................. 2 List of Figures ................................................ 3 III. IV. Appendix A - Appendix B - Appendix C - Appendix D Appendix E - Appendix F - Introduction .............................................. 4 Hydraulic Analysis ....................................... F!ooplain and Floodway Tables ............................ 6-7 Conditional Letter of Map Revision ....................... Application/Certification Forms - Cottonwood Br..A-1 Application/Certification Forms Denton Creek...B-I Cottonwood Branch - Floodplain Models ............ C-1 Duplicate Effective Model Corrective Effective Model Revised or Post-project Conditions Model Cottonwood Branch Floodway Models .............. D-1 Duplicate Effective Model Corrective Effective Model Revised or Post-project Conditions Model VOLUME 2 Denton Creek - Floodplain Models ................. E-1 Duplicate Effective Model Revised or Post-project Conditions Model Denton Creek - Floodway Models ................... F-1 Duplicate Effective Model Revised or Post-project Conditions Model LIST OF FIGURES FIGURE NO. 1 2 4 5 6 7 TITLE FIRM Workmap Cottonwood Branch Workmap - Denton Creek Drainage Area Map Cottonwood Branch - Channe!ization Parkway Boulevard - Bridge Layout Parkway Boulevard - Vertical Profile 1! 12 12 13 13 14 14 ,, 3 I. iNTRODUCTION The purpose of this report is to apply for a Letter of Map Revision for the subject property, proposed Copperstone subdivision. The Application/Certification Forms required by the Federal Emergency Management Agency (FEMA) are contained within this report. II. ETDRAULIC ANALYSIS The developed area is located between Cottonwood Branch and Denton Creek west of Andrew Brown Community Park. The original Floodplain Reclamation Study on Cottonwood Branch and Denton Creek for this area was prepared by Jerry Parche Consulting Engineers of Arlington, Texas. This report was submitted in October, 1988 and a Conditional Letter of Map Revision (CLOMR) was issued in January, 1989. Since that time there have been numerous changesto Denton Creek and therefore impacting the effective model to Cottonwood Branch as well. The current effective models were obtained from FEMA to produce the most accurate information pqssible. A, FloodDlainAnalvsis of Cottonwood Branch In order to stay within the new requirements of the City of Coppell for no increase in water surface elevation, a channel was designed for Cottonwood Branch at the location of the Parkway Boulevard bridge. A layout for the cham~e! and the bridge are found in the this report. Tables ! & 2 have been =reared to compare the water surface elevations of the effective model to the revised or post-project conditions model and to the CLOMR. There is no increase in water surface elevation when comparing the post-project model and the effective model. B~ F!oodwavAnatvsis of Cottonwood Branch The workmap contained in the report shows the relationship between the effective floodway boundary and the modified floodway boundary. As the map indicates, the effective floodway boundary has been drawn much closer to the channel on the southside'~f Cottonwood Branch than the northside (sections 34075 & 34472). In order to obtain a more objective location of the floodway boundary, encFoachment Method 4 was run to determine the floodway boundaries where equal conveyance reduction occurs on each side of the channel. This method was used at sections 34075 and 34472. The resulting encroachment stations for these sections were used to determine the encroachment stations tO the Method 1 run used in the Floodway Models shown in Table 1. Referring to table 1, the only increase in floodway elevation occurs at station 8000, which is by .01 feet. However, this remains below the level established by the CLOMR. C. F!oodolainAnalvsis of Denton Creek The water surface elevations for Denton Creek are shown in Table ~. The Revised or Post-project conditions model indicate no increase over the effective model and remain well below the levels established by the CLOMR. 4 D. FloodwaVAnalVsis of Denton Creek The floodway elevations for Denton Creek are shown in Table 2. The Revised or post-project conditions model indicate no increase over the effective model and remain below the levels established by the CLOMR with the exception of section 36970. E. Parkway Boulevard Bridae A layout of the Parkway Boulevard bridge and vertical profile are included in this report. The beam low chord has been established at 465.7 feet. The 100 year water surface elevation is at 463.37 leaving a freeboard of 2.33 feet. The 500 year water surface elevation is at 463.96, well below the beam low chord elevation. F. MEC-2 MODELS Ten models were submitted with this report and are listed below along with their input file names. COTTONWOOD BRANCH a. Floodplain 1. Duplicate Effective Model (CBEXIST.EC2) 2. Corrected Effective Model (CBS1A.HC2) 3. Revised or Post-project Conditions Model (CBFA.HC2) Floodway 1. Duplicate Effective Model (CBENC.MC2) 2. Corrected Effective Model (CBENCI.HC2) 3. Revised or Post-project Conditions Model DENTOh CREEK Floodplain (CBFAENC. }{C2 ) 1. Duplicate Effective Model - (DCPROP.EC2) 2. Revised or Post-project Conditions Model (DCMODZ.EC2) b. Floodway ' 1. Duplicate Effective Model (DCFLPROP.HC2) 2. Revised or Post-project Conditions Model (DCFLMODZ.HC2) ~ G. Tooo~raohic Information The workmaps included in this report are taken from City topography. The fill area was superimposed by computer graphics the workmaps used for this report. of Coppell to create 5 Sec. No. 32816 32916 33016 33116 33560 34075 34472 34822 6710 8000 9430 9494 TABLE 1 COPPERSTONE Coppe!!, Texas Cottonwood Branch - 100 FLOODPLAIN Duplicate Effective Model Corrected Effective Model 463.41 463.76 464.02 464.18 465.35 467.31 468.02 470.12 473.15 477.17 477.50 463 463 464 464 465 467 467 468 470 473 477 477 41 76 02 18 35 31 98 34 03 18 16 50 Year Storm Revised Post-project Model 463.41 463.27 463.37 463.84 464.84 467.18 467.89 468.25 470.03 473.18 477.16 477.50 (CLOMR)* 462.50 464.19 464.44 464.57 465.45 467.32 470.63 473.04 Sec. No. 32816 32916 33016 33116 33560 34075 34472 34822 6710 8000 9430 9494 * (CLOMR) Duplicate Effective Model 464.39 464.49 464.72 465.02 466.21 467.97 468.95 471.11 473.65 478.07 477.50 was based FLOODWAY Corrected Effective Model 464.39 464.49 464 72 465 02 466 21 467 95 468 79 469 21 470 80 473 69 478 05 477 50 upon a previous Revised Post-project Model 464 39 464 22 464 29 464 66 465 32 467 52 468.39 468.91 470.74 473.70 478.04 477.50 model of Denton Creek (CLOMR) * 462.52 464.26 464.52 464.86 466.16 467.96 471.61 473.71 6 Se~. 32250 32305 32725 33145 33470 34260 34850 34950 36970 38200 39290 39440 Duplicate Effective Model 460.31 460.15 461.24 46!.44 461.72 462.54 462.55 463.65 465.99 466.70 466.99 466.71 TABLE 2 COPPERSTONE Coppel!, Texas Denton Creek !00 Year Storm FLOODPLAiN Revised Post-project Model (CLOMR) 460 460 461 461 461 462 462 463 465 466 466 466 .31 459 26 15 458 58 24 461 9! 44 462 19 72 462 44 54 463 20 54 463 25 65 464 28 99 465.49 70 - 99 - 71 467.82 Sec . No. 32250 32305 32725 33145 33470 34260 34850 34950 36970 38200 39290 39440 * (CLOMR) Duplicate Effective Model 460.36 460.17 461.39 461.63 461.89 462.84 463.03 463.85 466.63 467.39 467.68 467.37 was based FLOODWAY Revised Post-projecn Model 460.36 460.17 461.39 461.63 461.89 462.84 463.02 463.85 466.63 467.39 467.68 467.37 upon a previous (CLOMR) · 460.!4 459.56 462.29 462.58 462.80 463.53 463.56 464.35 466.30 468.75 model of Denton Creek Federal Emergency Management Agency Wa~hln~toa, D.C. 20472 The Honorable Lcu Duggan Mayor of the Cin..y of Coppoll P.O. Box 478 Coppoll, Texas 75019 Case No.: 89-06-06R Dear Mayor Duggan: This is in reference to a letter dated October 10, 1988, and a floodplain study submitted by Mr. Russell R. Doyle, P.E., City Engineer for the City of Coppoll. In his letter, which was forwarded to us by cur Region VI office, Mr. Doyle requested a ocnditiona! Letter of Map Revision (EC~MR) for a proposed fill [roject along Cottonwood Branch and Denton Creek on behalf of Jerry Parche Consulting Engineers. The submitted floodplain study entitled Flood- plain Reclamation Study on Co,ironwood Branch and Denton Creek, dated October 1988, prepared by Jerry Parche Consulting Engineers, included the following: a description of the methodologies used; HEr-2 models of Denton Creek and Cottonwood Branch representing existing and proposed conditions; and delineations of r. he existing and proposed 100-year fledplain boundaries and Lhe proposed regularcry floodway boundaries on a topographic map. Prior to the commencement of our review, we received ~he initial fee of $350.00 for processing a conditional LCMR request of this type. This fee was sufficient to cover the review and processing costs associated wi~h this submittal. As explained in the submitted floodplain study, additional cross sections were inserted into the HEC-2 models for Denton Creek and Cottonwood Branch (in the vicinity of Denton Tap Road), which are 'not reflected in the preliminary Flood Insurance Study (FIS} for the City of CopFell, dated September 22, 1988. These models are therefore the best available models and will be used as the new baseline models in order to evaluate the effects of the proposed project. It is important to note, however, that these submitted models incorporated a swale construction and floodplain fill proj oct known as the Magnolia project. we have recently received a toques t for a map revision from your community regarding the Magnolia project and are currently awaiting the submission of a written maintenance agreement for this project as specified under Part 65.6 (a)(12) of the National Flood Insurance Program (NFIP) regulations. Therefore, the preliminary FIS will not be revised to reflect the updated existing conditions until the aforementioned maintenance agreement is received. After reviewing the submitted data, we have determined that the Froposed fill project meets the minimum floodplain management criteria of the NFIP. If the project is completed as proposed, the 100-year water-surface elevations of Denton Creek would remain unchanged except at cross section 34850. where an increase of 0.1 foot would occur. In addition, the 100-year floodplain and regularcry floodway of Denton Creek would be decreased as indicated in the submitted floodplaln study. Also, if the project is completed as proposed, the 100-year water-surface elevations of Cottonwood Branch would increase (a maximum of 0.9 foot) and the 100-year floodplain and regularcry floodway would be modified as depicted in the submitted floodplain study. It is important t9 note that the increase in the 100-year water-surface elevations of Denton Creek and Cottonwood Branch are due to the placement of fill outside of the regularcry flcod~ay of each stream. Please note that future revisions to t_he Flood Insurance Rate Map (FIRM) and Flood Boundary and Floodway Map (FBFM) or restudies of the flood hazards in this area could modify this determination. This determination is based on the lO0-year flood discharges computed in ~he preliminary FIS for your community, and does not consider subsequent changes in watershed characteristics that would tend to increase flood discharges. The development of this project and other projects upstream could result in increased flood discharges, which, in turn, could result in increased 100-year flood elevations. Future restudies of your community's flood hazards would take into account the cumulative effects of development on flood discharges, and could ~herefore establish higher 100-year flood elevations in this area. This conditional LCHR is based on minimum floodplain management criteria established under the NFIP. Your community is responsible for approving all proposed floodplain developments, including the project uEx~n which this request is based, and for assuring that necessary permits required by Federal or State law have been received. State add community officials, based on knowledge of local conditions and in the interes~ of safety, may set higher s~andards for construction or may limit deve!o~ent in floodplain areas. If the State of Texas or the City of Coppel! has adopted more restrictive comprehensive floodplain management criteria, these criteria ~aks precedence over =he minimum NFIP requirements. Please note the requirements for floodway revisions as outlined in NFIP regulation Part 65.7 (b)(1) (copy enclosed), which s~ates that when a floodway change is proposed, a copy of a public notice distributed by the community stating the community's intent to revise t. he floodway, or a statement by ~he community that it has nouifled all affected property owners and affected adjacent Jurist]lotions must be submitted to the Federal Emergency Management Agency (FEMA), This requirement must be addressed when requesting a map revision to reflect the effects of the completed fill project. We have enclosed a copy of Part 65 of the NFIP regulations, w~ich further describes the nature and extent of the material needed to support a request to revise an effective FIS, FIP. M, and FBFM. Compliance with the cri=erla outlined in =his document will expedite FEMA'S review process, thus a~iowing the effective FIS, FIRM, and FBFM for your community to be revised as appropriate, in a =iraely manner. 9 3 Should you have any questions regarding this ma~=er, please do nut hesitate con=ac~ the Chie=, Natural and Technological Hazards Division uf =he Federal Emergency Managemen~ Agency in Denton, Texas, a~ (817) 898-9127 or Matt. hew B. Miller of our Headquarters staff in Washington, D.C., a~ (2a2) 646-a461. Sincerely, Ch~e , Risk Studies Division Federal Insurance Administration Enclosure co: Mr. Russell R. Doyle, P.E. Mr. Jerry Parthe, P.E., Jerry oh' Consulting Engineers Par e IO lt~rZ-~,.-,, OR PO,g~PROdI:L~ CONDi'~IONS !IOD~'r. (IPIIX)E)NXY) 'It~"~ION 3~,822 .IDDI~D _EC2 S/M: 1363000510 B]4Version: 6.52 Data File: CBFAE~{C.RC2 'C-2 WATER SURFACE PROFILES Version 4.6.2; May 199I RUN DATE 6MAY94 TIME 14:01:28 D.S. kRMY CO~PS OF ENGINEERS ~YD~OLO~IC E~GINEERING CE3TER 609 5E~ S~E~, SUITE D DAVIS, ~IFO~IA 95616-4687 (916) 756-1104 X X XXXXXXX XXXXX XXXXX X X X X X X X X X X X X XXXXXXX XXXX X XXXXX XXXXX X X X X X X X X X X X X X XXXXXXX XXXXX XXXXXXX ::: FULL MICRO-COMPUTR IMPLEMENTATION "' ' 37 Brooksida Road , BAESTAD NETBOOS Waterbury, Connecticut 06708 , (203) 755-1666 ~ ~te: 6E~Y94 Foul1 TiM: 14:01:28 HMVersion: 6.52 Data File: CBFAEI{C.HC2 Page I dEC-2 WAT~ S~FACH PROFILES ,./ersion 4.6.2; May I991 THIS RUI{ EXECUTED 6MAY94 14:01:28 2 COT~3NWOOD BRANCH MASTER DRAINAGE PLAN i00 YE3j{ FREQD~C"f FLOOD EXISTING CONDITIONS CITZ OF CO PPET.r., TEX~.~ (~EIiC)12/26/89 [CHECK INQ NIP [DIR STRT _0. 4. O. O. 0 O. '-..0 O. -i. METRIC ITSIllS Q W-~EL FQ O. O. 463.39 ~10. 200. ********REQUESTEl) SECTION {ERS******** -10. 9. 4500. 6400. 7300. 9400. 7300. 73~. 7300. 7300. 7300. .055 .055 .045 .I .3 32816. 17. 1157. 1183. 95. 80. 91. 459. 1000. 459.8 1073. 459.8 1157. 452.2 1169. 452.2 1179. 459.8 1183. 460.4 1195. 460. 1204. 459. 1255. 458.7 1274. 459. 1328. 460. 1373. 461. 1438. 462. 1470. 463. 1486. 464. 1500. 465. 1508. .02 .02 ,7 32916. ~': i0. 466.81 1103. 466.2 1171.25 .02 .3 .5 1103. 1232. 100. 456.4 1124. 456.2 466.2 1173.75 452.2 7.1 1103. 1232. 100. 100. 1132. 452.2 1140. 452.2 1171.25 1173.75 452.2 1205. 466. 1232. 7.1 1103. 1232. 1{30. 100. 1132. 452.2 1140. 452.2 1171.25 1173.75 452.2 1205. 466. 1232. 33016. 10. 1103. 1232. 466.81 1103. ' 456.4 1124. 466.2 1171.25 466.2 1173.75 100. 456.2 452.2 .055 .055 .045 .I .3 7.1 1095. 1350. 116. 10. 1122. 1233. i00. 100. 100. ,/0. 1045. 460. 1095. 460. 1122. 452.5 1145. 460. 1233. 462. 1277. 464. 1545. 466. 1647. 452,5 1210. 468. 1762. Run Date: 6MAY94 Run Time: 14:01:28 ~Version: 6.52 Data File: CBFABC.HC2 Page 'T 7.1 i030. 1300. "1 33560. 17. 1178. 1210. 380. 470. 444. ]R 468. 880. 468. 926. 467. 966. 463. 1018. GR 462, 1178. 460. 1183. 454.5 1189. 454.1 1196. "R 460, i210. 462. 1253. 463. 1345, 464. i377. ,R 466, 1400. 468. 1433. 461. 454.3 465. 1118. 1206. 1390. 7.1 1063. 1409. 34075. 33. I177. 1230. 505. 520. 515. 470, 953. 469. 1035. 462. 1070. 459. 1075. 459. 1085. 460. 1096. 461. 1100. 462. 1114. 462. 1177. 460. 1190. 460. 1193. 455.8 1196. 455.6 1205. 455.8 1218. 460. 1220. 462.0 1230. 463.0 1262. 464.0 1320. 465.0 1408. 466.0 1418. 466.0 1440. 464.0 1448. 469. i460, 468. 1470. 467. 1479. 467. 1490. 465. 1502. 464. 1505. 464. 1552. 465. 1590. 466. 1600. 467. 1618. 469. 1637. 7.1 1115. 1624. 34472. 31. .1405. 1432. 460. 350. 397. 470. 976. 463. 1001. 462. 1111. 462. 1161. 464.2 1181. 464. 1220. 465. 1230. 465.7 1255. 465,7 1265. 465. 1280. 464. 1303. 464. 1405. 460. 1414. 457,3 1416. 457.3 1425. 460. 1427. 465. 1432. 465. 1441. 464. 1500. 464. 1641. 465. 1658. 467. 1663. 467. 1670. 467. 1683. 468. 1691. ~68. 1700. 465. I717. 465. 1802. 466, 1815. 467. 1827. 470. 1867. 7.1 1289. 1800. 370. 260. 350. 468. 121/. 466. 1220. 462. 1385. 460. 1390. 462. 1415. 464. 1420. 464, 1635. 464, 1825. 0.3 1100. 474.1 472.2 468.7 467.7 465.9 468.6 990. 478.3 476.6 474.8 470.1 472.2 7.1 750. 926. 1077. 1250. i315. 1572. 1822. 7.1 1060. 2O9<). 2340. 2558. 2700. 2848. 1083. 1165. 474,2 466,9 462,6 467,4 465.9 471,0 2693. 1335. 477.5 476.4 474.5 472.1 471.3 1670. 955. 1093. 1257. 1322, 1622. 1872. 3202. 2140. 2440. 2590. 2800. 29O0. 34822. 22. 1369. 1425. _; 472. 10~0. 470. 1200. GR 466. 1369. 464. 1377. " 458.2 1405. 460. 1410. 466. 1563. 464. 1590. GR 468. 2045. 470. 2175. ,065 0,06 0.05 0,1 ~ 6710, 31. 1250, 1286, 474,2 866, 474, 916, .. 472.8 1016. 472.6 1066, GR 468,0 1172, 468,7 1222, " 462,3 1275, 469,4 1286, 466.3 1472. 466.3 1522, GR 466, 1722, 466,8 1772, --. 475. 1937. 466, 458,2 466, 466, 474. 467.5 460.6 466.3 466.8 473.0 477.1 476,2 474,4 472.3 469.8 8000. 35. ,2817. ' 2848. 479.3 1990. 478.4 2040. 477. 2240. 476.7 2290. GR 5.9 2540. 476.8 2547. ~' 474,3 2656. 472.6 2690. 465.3 2829. 463.9 2840. 1331. 1395. 1425. 1970, 966. i122. 1266. 1372. 1672. 1922. 2190. 2490. 2640. 2817. 3000. Run Date: 6MAY94 Run TiM: 14:01:28 HMVersion: 6,52 Data File: CBFAEIIC.HC2 |68.1 3100. 468.7 3200. 469.8 3300. 471.5 3340. 4?4.4 3400. 479.4 3500. 480.6 3534. 481.5 3600. 480.5 3700. 477.7 3804). 2T 9 ET ". 9430 J 498.5 GR 483.2 _.~ 479.5 ~ 466.5 uR 475.3 4200 5900 6700 8600 6700 6700 6700 6700 6700 7.I 1268 1497 25 1268 1426 1340 1250 i430 841 496,1 89I 494.3 941 488.0 991 482.8 1012 1031 483.2 I039 482,8 1060 481,8 1091 480,5 1141 1171 474.7 1191 473,7 1200 477,3 1268 466,8 1291 1306 478.1 1426 473.6 1440 474.3 1500 474.6 1600 1700 481.3 1800 483.7 1900 487.1 2000 489.2 2100 0,02 0.02 0,3 0,5 7,i 1300 1382 29 1300 1382 64 64 64 1301 481,6 480,4 1382 481,6 480,3 1000 483,8 1100 482,0 1200 481.8 1207 481,6 1301 478,8 1302 474.3 1307 473,9 1314 468,8 1325 480.4 1325 480,4 1327 467,9 1327 467.8 1356 480,4 1358 471.3 1358 472.7 1366 478,7 1382 481,6 1382 481,5 1400 481,2 1500 481,4 1700 484,3 1800 486.4 1900 492,1 2000 7.1 1300 32 32 32 1 "' 0,02 X1 9494 .: 489,4 GR 480,4 " 467.9 480,4 ,2 480,3 c~ 482,6 X1 9526 1382 NC .06 9590 _, 488.4 GR 466,5 ' 475.3 NC .06 10120 UK 490.00 r~ 479,78 478,15 1300 1322 1356 1380 1600 10210 490.0 ~q0.78 GR 3,30 " 479,07 200.2 19 1180 1231 80 90 80 850 483.42 1000. 483,38 1047 482.32 1146 480.47 1180 478,26 1188 468,66 1211 477,72 1222 480.05 1227 . 480.18 1294 481.77 1336 483.38 1360 489.38 Ft. 200.2 ' 10120 15 1180 1273 10 10 10 490,00 850 482,42 1000, 482.38 1047 481,32 GR 479,78 1146' 479,47 1180 477,01 1188 469,78 '-- 478,i5 1231 481.03 1273 481,22 1295 486.94 1070 480.43 II10 1207 468.53 1217 1348 490.83 1385 1070 481,43 1110 1197 468,86 1205 1231 479,48 1250 1378 Page .07 .05 7.1 1268 1600 15 1268 1426 64 64 64 I000 481.3 Ii00 473.7 1200 477.3 1268 466.6 1291 1306 478,1 1426 473,6 1440 474,3 1500 474,6 1600 1700 481.3 1800 483,7 1900 487.1 2000 489,2 2100 ,075 ,05 ,1 ,3 200.2 15 3180 1273 530 510 530 850 482,42 1000, 482.38 1047 481,32 1070 480,43 lllO 1146 479.47 1180 477.01 1188 469.78 1207 468.53 1217 1231 481,03 1273 481,22 1295 486,94 1348 490.83 1385 l~n Date: 6MAY94 Run Time: 14:01:28 BMVersion: 6.52 Data File: CBFAE~C.~C2 Page 4 "C 0.055 'T 200.2 1 10470 19 1202 1284 350 180 260 GR 497.35 1000 494.23 1035 491.02 1089 490.35 1115 --R 483.27 1169 482.07 1187 481.29 1202 469.31 1214 R 473.51 1238 478.42 1252 480.77 1284 480.14 1304 GR 480.41 1363 481.0I 1399 486.75 1414 489.75 1423 'r 180.2 ..1 10655 16 1168 1231 150 180 185 ~R 486.96 1000 486.12 1019 486.09 1039 482.21 1076 "'R 480.61 1142 481.27 1168 478.22 1186 471.32 1204 ~ 482.03 1231 481.i0 1256 481.99 1306 484.58 1320 GR 490.54 i340 [ 180.2 ~1 10830 16 1200 1262 130 185 175 ",_~ 489.22 i000 486.96 1040 485.40 1080 484.16 1100 t 482.13 1162 482.23 1200 480.47 1220 471.18 1228 _.! 473.19 1247 481.91 1262 482.04 1286 484.76 1352 .GR 490.56 1385 ' 200.2 ll I1030 19 1217 1287 150 210 200 .~2 ~90.0 965 486.46 1000 483.05 1065 482.05 1114 ,81.51 1192 481.58 1217 479.1I 1224 474.21 1232 'ua 471.51 1243 471.01 1254 475.11 1257 477.21 1263 '~. 486.51 1287 487.01 1301 492.51 1359 500.30 1448 7.1 1345 1615 Xl' 11230 13 1480 1550 190 290 260 500 1000 498 1040 492 1120 490 1150 480 1480 472.5 1500 480 1550 482 1570 GR 492 1685 494 1710 500 1800 0.075 ~ 9 3600 '5100 5700 7300 5700 5700 5700 H. 11380 21 1284 1390 150 150 150 492.0 i000 488.70 1055 485.87 1115 484.20 1165 483.23 1248 484.50 1266 484.46 1284 482.74 1303 GR 473.10 1336 471.80 1344 472.07 1351 482.89 1359 484.56 1390 484.79 1420 486.92 1469 488.70 1496 490.85 1544 ";- 11880 17 1222 1306 440 480 500 493.43 1000 '489.50 1080 466.53 1141 485.74 1196 ~ 476.26 1233 471.78 1236 473.72 1245 476.26 1251 ~ 483.97 1275 484.46 1287 485.44 1306 485.13 1340 "' 489.57 1379 492.86 1411 488.34 469.57 480.91 481.34 470.63 485.54 483.17 471.97 485.93 481.53 472.80 484.83 482 490 5700 483.46 479.55 483.55 469.97 484.97 480.04 486.71 1126 1227 1322 1106 1219 1325 1123 1234 1371 1156 1242 1271 1290 1655 5700 1210 1327 1371 1529 1222 1263 1355 Run Date: 6MAY94 Run TiM: 14:01:28 HMVersion: 6.52 Data File: CBFAEI{C.HC2 Page 5 12420 21 1157 1246 430 495.90 1000 496.57 1026 495.59 487.42 1123 487.11 1147 488.86 482.53 1183 477.92 1193 477.16 475.34 i215 487.04 1228 488.55 493.74 i365 490 540 1046 491.08 1068 489.64 1092 1157 487.21 1164 482.56 1173 1201 474.83 1206 474.52 1210 1246 489.06 1309 492.51 1356 7.i 1373 1537 12540 15 1458 I538 160 80 120 504.4 1000 500.7 1100 · 497.0 1200 495.8 1296 487.9 1400 485.4 1458 474.9 1475 475.3 1485 489.6 1538 490.0 1600 492.9 1700 497.1 1800 0.02 0.02 0.02 0.3 0.5 79.2 12585 29 1417 1522 45 45 45 3 1417 492.5 491.6 1470 493.0 491.6 1522 504.4 1000 500.3 1100 496.5 1200 493.5 1300 492.5 1417 492.6 1428 491.5 1428 489.5 1428 479.6 1454 491.6 1454 491.6 1456 479.6 1456 474.7 1470 474.1 1484 491.6 1484 491.6 1486 489.4 1.511 491.6 1511 492.7 1511 492.6 1522 493.5 1700 497.3 1800 502.6 1900 508.2 2000 12615 3O .06 .07 .05 79.2 30 30 1 7.1 1373 1538 12675 15 1458 1538 60 60 60 504.4 i000 500.7 1100 497.0 1200 495.8 1296 487.9 1400 485.4 1458 474.9 1475 475.3 1485 489.6 1538 490.0 1600 492.9 1700 497.1 1800 .06 .075 .05 .i .3 7.1 1498 1721 14600 20 1676 1721 1825 1575 1925 516.9 1000 512.5 1100 508.5 1200 504.5 1302 499.0 1400 488.8 1500 490.8 1600 489.8 1676 486.4 . 1713 4~).0 1721 495.0 1800 503.4 1900 505.6 1956 506.5 2000 513.3 2100 517.7 2135 7.1 1385 1575 17970 14 1443 1499 1620 2450 3370 510 1010 . 507 1135 504 1293 503 1443 499 1462 499 1468 499 1479 497 1481 504 1553 505 1578 510 1640 512 1673 488.0 480.4 504.3 492.6 492.3 480.7 478.9 477.0 491.7 488.0 480.4 504.3 490.0 487.0 507.8 519.2 502 502 1317 1493 1900 491.6 1400 1449 1462 1486 1600 1317 1493 1900 1345 1685 1938 2200 1457 1499 Run Date: 6MAY94 Run Time: 14:01:28 B]~Cersion: 6.52 Data File: CBFA~C.HC2 Page .06 .06 .045 .2 .4 7.1 1275 1425 18085 13 1281 I437 115 i15 115 513 1000 512 1140 510 I159 509 I191 503 1298 500 1312 495.4 1331 495.4 1390 503 1424 505 1437 510 1504 7.1 1000 1150 18125 12 1000 i150 40 40 40 513 724 512 875 510 898 505 986 495.8 1038 495.8 lid 505 1/50 505 1154 510 1204 512 1242 7.i i002 1147 18670 12 1000 1150 525 565 545 514 767 513 872 512 976 510 986 498.4 1038 498.4 11/3 507.8 1150 510 1162 513 1239 514 1299 145.2 18786 27 1017 1191 116 116 116 2 1017 517.2 512 1/91 517.2 510.2 512.3 1016 512 1017 505.1 1045 512.1 I045 504.5 I047 499 i069 499 i075 511.8 1075 499 1077 499 1106 511.5 1106 511.5 1108 499 1136 511.2 1136 511.2 1138 499 1138 504.5 1167 510.9 1167 510.9 1169 505.1 1169 510.2 1197 510.6 1197 145.2 18884 27 1017 1191 98 98 98 2 1017 517.2 512.5 1191 517.2 510.7 512.8 I016 512.5 1017 505.6 1045 512.3 I045 505 1047 499.5 1069 499.5 1075 512.3 1075 499.5 1077 499.5 1106 " 512 1106 512 1108 499.5 1/36 511.7 1136 51/.7 1138 499.5 1138 505 1167 511.4 1167 511.4 1169 505.6 1169 510.7 1197 511.5 1197 7.1 1002.5 t147.5 18969 13 1000 1150 85 85 85 515 788 514 882 513 943 512 986 509.3 1000 499.9 1038 499.9 1113 509.3 1150 512 1164 513 1213 515 1314 7.1 1007.5 1142.5 19609 ii 1000 1150 660 620 640 520 730 517 863 515 982 514 995 503 1038 503 1113 512.4 1150 515 1161 525 1244 504 500 505 507 507.8 512 512.1 511.8 499 499 510.2 512.5 512.3 499.5 499.5 510.7 510 510 512.4 520 1281 1411 1000 1162 i000 i168 1047 i077 1108 1144 1191 1047 1077 1108 1144 1191 994 1156 1000 1194 Run Date: 6MAY94 r~n Time: 14:01:28 ~{Version: 6.52 Data File: CBFAENC.~C2 Page 7 125.2 19659 I3 1246 1399 50 50 520 1000 518 1062 516 1189 510 1263 503.3 1290 503.3- 1351 515 1405 520 1438 525 i490 50 515 1241 510 1382 7.1 1226 1376 19709 13 1226 1376 50 50 50 520 1000 517 1098 516 1181 515 i226 510 1252 503.6 1276 503.6 1310 509 1330 515 1376 520 1411 525 146i .06 .075 .05 .1 .3 7.1 958 I067 50 50 950 513 958 1086 520 1126 19759 11 958 1067 50 520 728 517 827 515 503.8 i010 513 i067 515 530 1220 514.2 514.2 512 510 503.8 1246 1399 1240 1341 i000 1175 9 3600 5100 5700 7300 5700 5700 5700 5700 5700 7.1 1400 1540 19794 15 1388 1565 35 35 35 524 1038 518 1260 517 1290 516 1388 515 1424 510 1448 508 1463 503.9 1473 503.9 1479 506 1487 509 1491 514 1542 516 1565 518 1591 522 1627 513.8 515 510 519 7.1 1303 1530 19944 14 1377 1416 150 150 150 525.4 1000 522.6 1100 520.9 1200 516.3 1300 505.8 '1395 505.6 1400 506.3 1404 513 1416 517.8 1579 521 1600 533.7 1690 533.9 1700 10.41 150 125' 1162 514 1221 1329 515 1362 20069 12 1241 1278 180 524 1000 520 1083 " 516 505.8 1257 511 1278 514 519 1457 ' 525 1594 1377 1500 1241 1414 20279 15 1340 1401 260 130 210 521 1000 519 1037 517 1089 514 1141 510 1215 510 1247 513 1262 513 1340 510 1357 506 1366 510 1385 514 1401 516 1418 521 1448 523 1474 510 514 20479 13 1280 1324 75 140 200 522 1000 518 1105 517 1166 515 1280 506.1 1291 508 1300 510 1311 512 1324 517 1439 520 1466 525 150{3 1288 1403 Run Date: 6MAY94 ~un Time: 14:01:28 [~4Version: 6.52 Data File: CBFAENC.HC2 Page 8 20779 15 1383 i413 200 300 521 971 520 1007 518 1068 515 1286 514.8 1320 514 1383 510 1405 515 1413 520 1447 300 517 1160 516 1243 510 1396 507 1400 523 1476 524 1496 7.1 1549 1862 22510 23 ~755 1779 1240 1180 1210 532.4 1000 528.3 1100 524.5 1200 522.8 1300 521.7 1500 521.2 1600 520.5 I700 516.7 1726 518.5 1755 .511.8 1763 512.2 1774 516.9 1779 518.9 1883 521.6 2000 524.6 2031 525.6 2100 533.4 2300 536.5 2400 538.4 2500 521.8 516.7 519.1 530.2 1400 1726 1800 2200 Date: 6M.~Y94 Run Tiee: 14:01:28 H]~/ersion: 6.52 Data File: CBFAEI{C.HC2 Page 9 COTTONWOOD BRANCH MASTER DRA~AGE P[.LN i00 YF. AR FREQUEI{Cf FLCK]D EN~A~ CO~[TIONS Cf~ OF CX)PPELL, TEXi~ (CBEI{C)12/26/89 Jl ICHE~ _ O. 6. ENQ NI~ IDIR STRT METRIC O. O. O. O. IPL~ PR~S ' XSE~ XSECH 15. O. -1. }[VINS Q WSEL FQ O. 464.39 ~Lj)Z IM C~RdlM ITRACE Run Date: 6MAY94 Run Tiae: 14:01:28 HMversion: 6.52 Data File: CBFAENC.HC2 Page HEC-2 WATER SURFACE PROFILES Version 4.6.2; May 1991 THIS RUN EXECUTED 6MAY94 14:01:31 ~OTE- ASTERISK (*) AT LEFT OF CROSS-SECTIUN NUMBER INDICATES MESSAGE IN S{3O{kRY OF ERRORS LIST '.ITY OF COPPEr.r`, TEXAS ( MY PRLiTOUT TABLE 110 SEe CWSEL DIFIGdS EG TOPWID QLOB QC]{ QROB PEDE2{C STEldCL STCHL STCH]{ STENC]{ 32816.000 463.39 0.00 463.69 491.46 2098.30 1532.50 3669.20 0.00 0.00 1157.00 1183.00 0.00 32816.000 464.39 0.00 464.56 503.12 2157.65 1278.94 3863.41 O.00 0.(30 1157.00 1183.00 O.00 32916.000 463.25 0.00 464.10 113.93 0.00 73000.00 0.00 0.00 0.00 I103.00 1232.00 0.00 32916.000 464.22 0.97 464.90 i17.79 0.00 7300.00 0.00 129.00 1103.00 1103.00 1232.00 1232.00 916.0OO 463.3{ 0.00 464.18 114.31 0.00 7300.00 0.00 0.00 0.00 1103.00 1232.00 0.(30 ~j016.000 464.29 0.94 464.96 118.05 0.00 7300.00 0.00 129.00 1103.00 1103.00 1232.00 1232.00 33116.000 463.82 0.00 464.32 445.28 333.60 6471.22 495.18 0.00 0.00 1122.00 1233.00 0.00 33116.000 464.66 0.84 465.07 255.00 293.68 6365.95 640.38 255.00 1095.00 1122.00 1233.00 1350.00 33560.000 464.82 0.00 465.76 393.40 2400.59 2961.41 1938.00 0.00 0.00 1178.00 1210.00 0.00 33560.000 465132 0.50 466.21 270.00 2646.81 2974.04 1679.15 270.00 1030.00 1178.00 1210.00 1300.00 34075.000 467.18 0.00 467.44 553.70 2475.85 2520.62 2303.53 0.00 0.00 1177.00 1230.00 0.00 34075.000 467.52 0.34 467.83 346.00 2700.73 2748.46 1850.81 346.00 1063.00 1177.00 1/30.00 1409.00 34472.000 467.89 0.00 467.98 844.97 4258.24 777.02 2264.74 0.00 0.00 1405.00 1432.00 0.00 34472.000 468.39 0.49 468.56 509.00 3899.55 1112.55 2287.90 509.00 1115.00 1405.00 1432.00 1624.00 34822.000 468.25 0.00 468.40 850.76 644.01 1731.73 4924.25 0.00 0.00 1369.00 1425.00 0.00 34822.000 468.91 0.66 469.12 511.00 534.96 2132.25 4632.79 511.00 1289.00 1369.00 1425.00 !800.00 6710.000 470.03 0.00 470.19 768.12 643.79 1121.17 5535.04 0.00 0.00 1/50.00 1286.00 0.00 6710.000 470.74 0.72 470.92 587.00 970.68 1230.06 5099.26 587.00 1083.00 1250.00 1/86.00 1670.00 8000.000 473.18 0.00 473.37 696.26 489.35 930.85 5879.80 0.00 0.00 2817.00 2848.00 0.00 8000.000 473.70 0.52 473.94 509.00 736.51 1107.74 5455.75 509.00 2693.00 2817.00 2848i00 3202.00 9430.000 477.16 0.00 477.48 534.83 291.14 4535.85 1873.00 0.00 0.00 1268.00 1426.00 0.00 ' '30.000 478.04 0.88 478.52 228.20 0.00 5805.51 894.49 229.00 1268.00 1268.00 1426.00 1497.00 Ffm'l Date: 6MAY94 Run Time: 14:01:28 B]4Version: 6.52 Data File: CBPAENC.HC2 CWSEL DIFKWS EG TOPWID QLOB Q~ QROB PERPC STDCL STCE 9494.000 477.50 0.00 480.84 69.76 0.00 9494.000 477.50 0.00 480.84 69.76 0,00 9526.000 479.41 0.00 481.38 75.27 0.00 9526.000 479.41 0.00 481.38 75.27 0.00 6700.00 0.00 0.00 0.00 i300.00 6700.00 0.00 82.00 1300.00 1300.00 6700.00 0.00 0.00 0.00 6700.00 0.00 82.00 1300.00 9590.000 481.95 0.00 481.99 736.54 957.06 3181.67 2561.27 0.00 0.00 9590.000 481.90 .0.05 481.99 332.00 0.00 4542.94 2157.07 332.00 1268.00 10120.000 481.85 0.00 483.57 242.44 779.63 5887.24 33.13 0.00 0.00 10120.000 481.69 -0.16 483.75 172.86 526.15 6150.46 23.39 200.00 1126.50 10120.000 482.68 0.00 483.74 313.61 1154.45 5450.38 95.i7 0.00 0.00 10120.000 482.61 -0.07 483.95 181.38 732.60 5871.32 96.09 200.00 1126.50 10210.000 483.27 0.00 484.34 309.03 780.03 4524.92 1395.05 0.00 0.00 10210.000 483.45 0.18 484.63 200.00 737.84 4732.15 1230.00 200.00 1105.50 10470.000 484.89 0.00 485.36 253.92 225.44 4691.60 1782.96 0.00 0.00 10470.000 485.16 0.26 485.79 190.00 290.96 5364.27 1044.77 200.00 1143.00 10655.000 485.33 0.00 485.87 277.63 1387.23 4239.67 1073.10 0.00 0.00 10655.000 485.69 0.36 486.35 180.00 1050.58 4705.57 943.85 180.00 1109.50 330.000 485.78 0.00 486.57 298.19 1183.62 4556.69 959.69 0.00 0.00 10830.000 486.21 0.43 487.06 180.00 945.69 4787.01 967.30 180.00 1141.00 11030.000 486.87 0.00 487.25 301.08 3012.34 3686.88 0.78 0.00 0.00 11030.000 487.12 0.25 487.90 150.13 1771.18 4924.46 4.36 200.00 1152.00 11230,000 487.41 0.00 487.55 432.17 3115.33 3048.09 536.57 0.00 0.00 11230.000 488.13 0.72 488.31 270.00 2509.30 3472.00 718.70 270.00 1345.00 11380.000 487.47 '0.00 487.78 396.17 1579.88 3851.45 268.67 0.00 0.00 · 11380.000 488.26 0.79 488.47 425.05 1773.34 3568.05 358.61 0.00 0.00 11880.000 488.67 0.00 489.24 274.39 719.85 4570.10 410.05 0.00 0.00 1222.00 '11880.000 489.02 0.35 489.50 284.47 810.87 4441.66 447.46 0.00 0.00 1222.00 0.00 491.11 249.16 452.48 0.09 491.18 251.86 469.00 0.00 491.48 328.71 1451.47 .0.06 491.57 164.00 1093.79 12420.000 490.44 _12420.000 490.53 12540.000 491.08 __12540.000 491.02 12585.000 490.94 0.00 491.76 79.00 0.00 12585.000 490.95 0.0i 491.78 '75.00 0.00 12615.000 490.97 0.00 491.79 79.00 0.00 t5.000 490.99 0.01 491.81 75.00 0.00 5064.43 183.O9 0.00 0.00 1157.OO 5034.61 I96.39 0.00 0.00 1157.00 4149.95 98.58 0.00 0.00 1458.00 4606.21 0.00 164.00 1373.00 1458.00 5700.00 0.00 0.00 0.00 1417.00 5700.00 0.00 79.00 I430.00 1417.00 5700.00 0.00 0.00 0.00 1417.00 5700.00 0.00 79.00 1430.00 1417.00 1382.00 0.00 1382.00 1382.00 1300.00 I382.00 0.00 1300.00 1382.00 1382.00 1268.00 1426.00 0.00 1268.00 1426.00 1600.00 1180.00 1273.00 0.00 1180.00 1273.00 1326.50 1180.00 :1273.00 0.00 1180.00 1273.00 1326.50 1180.00 1231.00 0.00 1180.00 1231.00 I305.50 1202.00 1284.00 0.00 1201.00 1284.00 1343.00 l16a.00 1231.00 0.00 1168.00 1231.00 1289.50 1200.00 1262.00 0.00 1200.00 1262.00 1321.00 1217.00 1287.00 0.00 1217.00 1287.00 1352.00 1480.00 1550.00 0.00 1480.00 1550,00 1615,00 1284.00 1390.00 0.00 1284.00 1390.00 0.00 1306.00 0.00 1306.00 O.00 1246.00 0.00 1246.00 0.00 1538.OO 0.00 1538.00 1537.00 1522.00 0.00 1522.00 1509.00 1522.00 0.00 1522.00 1509.00 Run Date: 6MAY94 Run Time: 14:01:28 BMversion: 6.52 Data Pile: CBFA~C.HC2 Page 12 SEQ{O CWSEL DIFr~S EG TOPWID QLOB Q(~ QROB PERE~C STENCL STC~L 12675.000 491.71 0.00 492.01 351.94 1592.44 3918.77 188.79 0.00 0.00 1458.00 , 12675.000 491.55 -0.16 492.01 165.00 1199.04 4500.96 0.00 165.00 1373.00 1458.00 14600.000 495.05 0.00 495.27 407.73 3580.77 1785.55 333.68 0.00 0.00 1676.00 14600.000 495.79 0.74 496.06 223.00 3735.74 1964.25 0.00 223.00 1498.00 1876.00 17970.000 505.62 0.00 506.76 378.17 1719.55 3274.96 705.49 0.00 0.00 1443.00 17970.000 506.14 0.51 507.56 190.00 984.83 3755.90 959.27 190.00 1385.00 1443.00 * 18085.000 506.94 0.00 507.23 234.90 80.18 5600.I4 19.68 0.00 0.00 1281.00 -- 18085.000 507.77 0.83 508.03 150.00 26.44 5673.56 0.00 150.00 1275.00 1281.00 18125.000 506.99 0.00 507.27 211.08 58.89 5625.92 15,19 0.00 0.00 1000.00 _ 18125.000 507.83 0.84 508.07 150.00 0.00 5700.00 0.00 150.00 1000.00 18670.000 507.60 0.00 508.08 148.40 0.00 5700.00 0.00 0.00 0.00 10(~.00 18670.000 508.29 0.70 508.69 145.00 0.00 5700.00 0.00 145.00 1002.00 1000.00 18786.000 507.89 0.00 508.48 137.35 0.00 5700.00 0.00 0.00 0.00 1017.00 * 18786,000 508.50 0.61 509.00 135.00 0.00 5700.00 0.00 145.00 1031.50 1017.00 18884.000 508,35 0.00 508.95 137.03 0.00 5700.00 0.00 0.00 0.00 1017.00 18884.000 508.86 0.51 509.38 134.73 0.00 5700.00 0.00 145.00 1031.50 1017.00 ~69.000 508.72 0.00 509.25 145.37 0.00 5700.00 0.00 0.00 0.0~ I0~.00 18969.000 509.16 0.44 509.63 145.00 0.00 5700.00 0.00 145.00 1002.50 lO~.O0 "19609.000 510.66 0.00 511.44 136.15 0.00 5700.00 0.00 0.00 0.0~ lO~O,OO 19609.000 510.79 0.13 511.53 135.00 0.00 5700.00 O.OO 135.00 1007.50 1000,00 -- 19659.000 510.76 0.00 511.80 125.16 0.00 5700.00 0.00 0.00 0.00 1246.00 19659.000 510.88 0.12 511.88 125.00 0.00 5700.00 0.00 125.00 1260,0~ 1246,00 ,-- 19709.000 510.94 O.O0 513.29 101.26 0.00 5700,00 0.00 O.OO 0.00 1226,00 19709.000 510.98 0.04 513.29 101.76 0.00 5700.00 0.00 150,00 1226.00 1226.00 ~ 19759.000 512.22 0.00 514.55 100.65 0.00 5700.00 0.00 0,00 0.00 958.00 '19759.000 512.22 0.00 514.55 100.62 0.00 5700.00 0.00 109,00 958.00 958.00 * 19794.000 513.98 0.00 516,19 112.93 0.00 5700.00 0.00 0.00 0.00 1388.00 --19794.000 513.93 .0.05 516.19 110.87 0.00 5700.00 0.00 140.00 1400.00 1388.00 * 19944.000 517.13 0.00 518.61 278.27 666.05 3769.78 1264.17 0.00 0.00 1377.00 _19944.000 517.05 -0.09 518.63 227.00 628.11 3833.57 1238.32 227.00 1303.00 1377.00 20069.000 518.90 0.00 519.31 308.01 1398.46 2706.88 1594.66 0.00 0.00 1241.00 ~ 20069.000 518.76 . -0.14 ' 519.52 133.02 1086.97 3311.85 1301.18 0.23 1197.13 1241.00 20279.000 519.48 0.00 519.57 410.71 3770.53 1806.37 123.09 0.00 0.00 1340.00 * '9.000 519.77 0.29 519.91 228.92 3616.09 2083.91 0.00 0.20 1172.08 1340.00 STCH~ STE~CR 1538.00 0.00 1538.00 1538.00 1721.00 0.00 1721.00 1721.00 1499.00 0.00 1499.00 1575.00 1437.00 0.00 1437.00 1425.00 1150.00 0.00 1150.00 1150.00 1150.00 0.00 1150.00 1147.00 1191.00 0.00 1191.00 1176.50 1191.00 0.00 1191.00 1176.50 1150.00 0.00 1150.00 1147.50 1150.00 1150.00 1142.50 1399.08 0.00 1399.08 1385.00 1376.00 0.00 1376,00 1376.00 1067.00 0.00 1067.00 1067.00 1565.00 0.00 1565.00 1540.00 1416.00 0.00 1416.00 1530.00 1278.00 0.00 1278.00 1330.15 1401.00 0.{30 1401.00 1401.00 Run Date: 6MAY94 Run Time: 14:01:28 HMVersion: 6.52 Data File: CBFA~C.I{C2 Page 13 SECNO CWSEL DIFKWS EG TOPWID QLOB QCH QROB PER~C ST~CL STC5 STCHR STI~CR 20479.000 519.47 0.00 519.77 395.01 1263.51 2484.38 1952.11 0.00 0.00 1280.00 1324.00 0.00 20479.000 519,72 0.24 520.20 187.i9 i018.87 3042.77 1638.37 0.25 1202.68 1280.00 1324.00 1389.87 20779.000 520.09 0.00 520.32 443.96 4026.62 1518.85 154.53 0.00 0.00 1383.00 1413.00 0.00 20779.000 520.60 0.51 520.97 197.02 3944.22 1755.77 0.00 0.28 1215.98 1383.00 1413.00 1413.00 22510.000 523.14 0.00 523.37 736.22 2246.71 1455.93 1997.35 0.00 0.00 1755.00 1779.00 0.00 22510.000 524.14 1.00 524.45 313.00 2688.10 1666.39 1345.51 313.00 i549.00 1755.00 1779.00 1862.00 Run Date: 6MAY94 Run Time: 14:01:28 H}4version: 6.52 Data File: CBFAENC.NC2 Page 14 --S[MdARY OF ERRORS AND SPECIAL NOTES _AkNING SEe{O= 32916.000 PROFILE= .+3`MING SEe{O= 32916,000 PROFILE= "~J{ING SECNO= 33116.000 PROFILE= 'LUING SEe{O= 33116,000 PROFILE= SECI{O= 33560.000 PROFILE= SEEK3=- 33560,000 PROFILE= wARNING SEe{O= 34075.000 PROFILE= _UU{II{G SEC}MD:- 34075.000 PROFILE-- 1 CONVEYANCE CE~GE OUTSIDE ACCEI>IABLE RANGE 2 CONVEYANCE CEANGE OUTSIDE ACCEPTABLE P, ANGE 1 CONVEYANCE CHANGE O{7[SIDE ACCEFf.~BLE 1L~NGE 2 CONVEYANCE CHANGE OUTSIDE ACCF/>TABLE RANGE i CONVEYANG CHANGE OUTSIDE ACCEPTABLE RANGE 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 CONVEYANCE CHAliCE OUTSIDE ACCEPTABLE RANGE · 2 CONVEYANCE CEANGE OUTSIDE ACCEi>TABLE I~%NGE JUTEON SECI{O= 9494.000 PROFILE= 1 CRITICAL DEPTH ASSUMED '~UTION SECIK)= 9494,000 PROFILE= I PROBABLE MIRIIMDM SPECIFIC ENERGY '~UTION SEe{~ 9494.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL kUTION SEe{O= 9494.000 PROFILE-- 2 CRITICAL D~ A.~S~ CAUTION SECI{(~: 9494.000 PROFILE= 2 PROBABLE MLNIMUM SPECIFIC El{ERR T-4UTION SEe{O: 9494.000 PROFILE-- 2 20 TRIALS ATT{ED TO e WSEL ~,al{lFiNG SE~ 9526.000 PROFILE= i.~WTI{G SECN(~ 9526.000 PIUDFILE-- ....RNING SECNO= 9590,000 PROFILE= '~QUIING SEe{O= 9590,000 PROFILE= 1 CONVEYANCE CEANGE OUTSIDE ACCEPTABLE RIRGE 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE UTION SEe{O= 10120.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SEe{O= 10120.000 PROFILE= i PROBABLE MINIMUM SPECIFIC UM~ .-UTIOM SECNO~ 10120.000 PROFILE= 1 20 T~TI[a ATT~{~rED TO RA[/NCE WSEL UTION SE~ 10120.000 PROFILE= 2 Clh'TICA~ D~ A..~SUMED ~OTION SEC1ND: 10120.000 PROFILE'- 2 PROBANLE MXaXadlM SPECIFIC ~ ",_UTION SEC1K)= 10~0.000 PROFILE= 2 20 TRIALS ATTEI~:TED TO ~ WSEL ,.3NING SECB3= 10470.000 Pl~3FILE= ~a/U{I1N2 SEC1N3= 10470.000 PROFILE= ~NING SEC}K)= 11230.000 PROFILe= WARNING SRONO= 11230.000 PROFILE= '`MING SEe{O= 11380,000 PROFILE= WatNING SEC1N~ 11380,000 PROFILE= SEC~O= 125S5,000 'PROFILE= SEe{O= 12585,000 PROFILE= "",MUG SECI~O= 12675.000 PROFILE= 1 CONV~ffANCE CHANGE OUTSIDE ACCEPTABLE RANGE 2 CONVEYANCE CHANGE OUTSIDE AG;u,rABLE RANGE I CONVEYANCE CHANGE O{~TSIDE ACCEPTABLE P,3J{GE 2 CONVEYA1N2~ CH3/N~E OOTSIDE ACCEF[ABLE RANGE 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RABGE 2 CONVEYANCE CRABGE OUTSIDE ACCEPTABLE ME 1 CONVEYANCE CRANCE OUTSIDE ACCEPTABLE RANGE 2 CONVEYANCE C]UNGE OUTSIDE ACCI?rABLE RANGE 2 CONVEYANCE CRANGE OUTSIDE CA[' 'SEC1N)= 17970.000 PROFILE= 1 CRITICAL DEPI'!{ ~ ,.U'~.,,,M SEC'IN)= 17970.0~ PROFILE= I MINIMUM SPECIFIC ENEIU~Y 'J{ING SNCI~D= 17970.000 PROFIr. P-= 2 CON~EYANCE CRAIN~E OUTSIDE ACCEPTABLE P, ANGE SEe{O= 18085.000 PROFILE= 1 C'ONVEYA/~2E CHANGE OOTSIDE ACCEPTABLE Run Date: 6MAY94 Run Time: 14:01:28 HMVersion: 6.52 Data File: CSFAENC.HC2 'NG SECI{~ 18085.000 PROFILE= --~RNING SECT{O= 18670.000 PROFILE= A.RNI3G SECNO= 18670.000 PROFILE= _LRNING SECI{O= 18786.000 PROFILE= .LR]{ING SECNO= 18786.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 CONVEYANCE CHkNGE OUTSIDE ACCEPTABLE RANGE 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CONVEYANCE CHA~GE OUTSIDE ACCEPTABLE RANGE ~UTION SELNO= 19~09.000 PROFILE= 1 CRITICAL DEPTH ASSUMED --%UTIOM SECI{O= 19709.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC E~ERGY AUTION S~= 19709.000 PROFILE= 1 20 TRIALS .ATTIU{PTED TO BALANCE WSEL "~UTION SECNO= 19709.000 PROFILE= 2 CRITICAL DEPTH ASSUMED _~UTION SECNO~ 19709.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC EI{ERGY {UTION SECNO= 19709.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL %UTION SECNO= 19759.000 PROFILE= I CRITICAL DEPTH ASSUMED "~UTION SECNO= 19759.000 PROFILE= 1 MINII{UM SPECIFIC EI{~RGY IUTION SECNO= 19759.000 PROFILE= 2 CRITICAL DEFfH ASSUMBD 'IUTION SECIN)= 19759.000 PROFILE= 2 MINIMUM SPECIFIC EMERGE _ ~UTION SECNO= 19794.000 PROFILE= 1 CRITICAL DEPTH A~SUMED CAUTION SECNO= 19794.000 PROFILE= 1 PROBABLE MININUM SPECIFIC EI{ERGY i.+UTION SEC~O= 19794.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BAI~%]~2~ WSEL ,UTION SECNO~ 19794.000 PROFILE= 2 CRITICAL DEPTH ASSUMED ~UTION SECNO= 19794.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY ~-',U'~lON SE~ 19794.~ PROFILE= 2 20 TR.IAL~ ATTlUu-fr~ TO BALANCE WSEL UTION SEC]N2= 19944.000 PROFILE= 1 CRITICld., Dr, ErE A,~SUM~D '~,UTION SE(AK>' 19944.000 PROFILE= 1 MINLMUN SPECIFIC ENERGY ,-'IU{~I{G SE~ 19944.000 ]}ROFILE= 2 CONVEYAIN2E CNAI~E OUTSIDE AQCEPTABLE P. AMGE WARNING SECNO- 20069.000 ..JU[ING SECNO= 20069.000 ~.RN~I{G SECNC= 20279.000 PROFILE= '3NING SECNO- 20279.000 PROFILE= , ~II~2 SECN(~ 20479.00{) PROFILE= ~a. RNI2{G SEC1N3= 20479.000 PROEli. E= 1 CONVEYANCE CHANGE OUTSIDE ACCI{PTABLE RANGE 2 CONVEYE~2E C~R OUTSIDE ACCEPTABLE Z~NGE 1 CON~EYU{CE (:B/{GE OUTSIDE ACCEPTABLE RANGE 2 CONVEYABCE CHANGE OUTSIDE ACU~j,~3BLE RANGE i CONVEYANC{ CRABGE OUTSIDE ACt~PTABLE PaGE 2 CONVEY3K~ CHANGE OUTSIDE ACCEPTABLE P, ANGE Page 15 Data: eL~Y94 Run Time: 14:01:28 ~MVersion: 6.52 Data File: CBFA~C.HC2 Page 16 '~0D{~AY DATA, CITY OF COPPELL, TEXAS ~FILE NO. 2 STATION ....... F~AY ....... WATER SURFACE EL~ATION WIDT]] SE~ION MF.~N WIT~ WIT~OU DIFFERE~{CE ARFI .VEL(~ITY [L~OD~AY FLO(~D{4AY 32816.000 503. 2358. 3.1 464.4 463.4 1.0 ~2916.000 120. 1098. 6.7 464.2 463.2 1.0 "~3016.000 121. 1105. 6.6 464.2 463.3 0.9 ;3116.000 255. 1640. 4.5 464.6 463.8 0.8 33560.000 270. 1155. 6.3 465,3 464.8 0.5 .-~4075.000 346. 1845. 4.0 467.5 467.2 0.3 4472.000 509. 2318. 3.1 466.4 467.9 0.5 ~4822.000 511. 2182. 3.3 469.0 468.3 0.7 6710.000 587. 2340. 3.1 470.7 470.0 0.7 '8000.000 509. 1939. 3.8 473.7 473.2 ' 0.5 9430.000 229. 1266. 5.3 478.1 477.2 0.9 _ 9494.000 74. 457. 14.7 477.5 40.5 0.0 '-9526.000 79. 596. 11.2 479.4 479.4 0.0 9590.0(30 332. 2916. 2.3 481.8 481.9 -0.1 10120.000 173. 633. 10.6 481.7 481.9 -0.2 ~.~'~.0(0) 181. 796. 8.4 482.6 482.7 -0.1 ,.000 200. 962. 7.0 483.5 483.3 0.2 ~0470.0(~3 190. 1160. 5.8 485.2 484.9 0.3 '0655.000 180. 1161. 5.8 485.7 485.3 0.4 ')830.000 180. 1029. 6.5 486.2 485.8 0.4 [030.000 150. 1004. 6.7 487.1 486.9 0.2 11230.000 270. 2156. 3.1 488.1 487.4 0.7 ~.380.000 425. 1829. 3.1 488.3 487.5 0.8 .880.~ 284. 1231. 4.6 489.0 488.7 0.3 12420.000 252. 1036. 5.5 4~.5 490.4 0.1 ~40.000 164. 1056. 5.4 491.0" 491.1 -0.1 !585.000 79. 778. 7.3 4~.9 4~.9 0.0 ~615.000 79. 781/ 7.3 491.0 491.0 0.0 ~2675.000 165. 1146. 5.0 491.5 491.7 -0.2 '600.000 223. 1411. 4.0 495.8 495.1 0.7 970.000 190. 713. 8.0 ~.1 505.6 0.5 18085.0(03 150. 1401. 4.1 507.7 506.9 0.8 "a125-000 150. 1460. 3.9 507.8 507.0 0.8 670.0~0 145. 1128. 5.I 508.3 54)7.6 0.7 18786.000 145. 1002. 5.7 ~8.5 507.9 0.6 ia884.000 145. 983. 5.8 508.9 508.4 0.5 969.000 145. 1036. 5.5 5~.1 ~8.7 0.4 ~609.000 135. 826. 6.9 510.8 510.7 0.1 ~9659.000 125. 710. 8.0 510.9 510.8 0.1 '709.000 102. 468. 12.2 510.9 510.9 0.0 759.~0 i01. 466. 12.2 512.2 512.2 0.0 i[ ~ ii1. 473. 12.1 513.9 514.0 -0.1 Date: 6~Y94 ~ Time: 14:01:28 ~}{version: 6.52 Data File: C3FAEliC.HC2 Page 17 "'LoDIY~AY DATA, CITY OF ePPELL, TEXkS ( P~FILE NO. 2 STATION ....... FL~AY ....... WATE~ SURFACE ELEVATION WI~ SECTION MEA/t WI~ wI~ DIFF~CE AREA . VEL(~ZII"I FL~D~AY F~AY 19944.000 227. 773. 7.4 517.0 517.1 4.1 20069.001) 133. 955. 6.0 518.8 518.9 4.1 --20279.000 229. 1928. 3.0 519.8 519.5 0.3 20479.000 i87. 1204. 4.7 519.7 519.5 0.2 20779.000 197. 1209. 4.7 520.5 520.1 0.5 ,_22510.0~ 313. 1506. 3,8 524.1 523.1 1.0 DUPLICATION MOD~L X X XXXXXXX XXXXX X X X X X X X X X XXXXY;,XX X.XXX X X X X X X X X X X DUPLIC~TION MODEL 25AUG99 12:01:53 PAGE I HEC-2 WATER SURFACE PROFILES Vereion 4.6.2; May 1991 -10 -10 QT 9 NC ,066 X1 32816. GR 459. GR 459.8 GR 459. GR 464. 4600 .055 17. 1000. 1183. 1328. 1500. 6400 ,045 1167. 459.8 460.4 460. 465. 7300 9400 7300 7300 7300 1073. 459.8 1167. 4S2.2 1169. NC GR GR .03 32916. 466.81 466.2 .02 1103 7300 7300 452.2 1179. GR GR 33016. 466.81 466.2 1103 7.1 1103 1232 1103 1232 100 100 100 456.4 1124 456.2 1132 452.2 1140 452.2 1171.35 DUPLICATION MODEL 25AUG99 12:01:53 NC .056 .055 .045 .1 .3 ST 7.1 1096 1350 X1 33116. 10 1122 1233 100 100 100 GR 470 1045 460 1095 460 1122 452.5 1145 GR 460 1233 462 1277 464 1545 466 1647 ET 7.1 Xl 33560 17 1178 1210 380 470 GR 468 880 468 926 467 966 1030. 444 463 454.1 484 1300. lo18 1198 1377 452.5 468 461 454.3 465 1210 1762 1118 1206 1390 BT 7,1 1063 1409 X1 34075. 32 1177 1230 605 520 515 1115 397. 462 465.7 457.3 464 467 466 34472. 470 464 464 460 469 468 470 976 1220 1303 1437 1700 1867 1624 1161 1265 1416 1500 1683 1815 1405. 463 466 464 466 467 466 1432. 1001 1230 1405 1432 1663 1717 7.1 460. 350. 462 1111 465.7 1255 460 1414 465 1441 467 1670 465 1802 GR GR GR GR GR gT 7.1 1289 1800 X1 34822 22 1369 1426 370 260 350 GR 472 1070 470 1200 468 1212 466 1220 1083. 1165 474.3 466.9 462.6 467.4 465.9 471.0 NC GR GR 1286. 916. 1066. 1222. 1286. .06 31. 866. 1016. 1172. 1275. 1472. 1722. 1937. 1100 474.1 473.2 468.7 467.7 469.9 468.6 7.1 750 926. 1077, 1250. 1315, 1572 . 1822. 464.2 466 457.3 464 458 467 474. 467.5 460.6 466.3 466.8 473.0 .065 6710. 474.2 472.8 468.0 462,3 466.3 466. 1250. 474. 472.6 468.7 469.4 466.3 466.8 1181 1280 1425 1641 1691 1827 1331 1395 1435 1970 966. 1132. 1266. 1372. 1672. 1922. 25AUG99 12:01:53 PAGB 3 BT 7.1 2693. 3202. X1 8000. 35. 2817. 2848. 990. 1060. 1338. GR 479.3 1990. 478.4 2040. 478.3 2090. 477.6 2140. 477.1 2190. GR 477, 2240. 476.7 2290. 476.6 2340' 476'4 2440' 476'2 2490' GR 476.9 2540. 476.8 2647. 474.8 2688. 474.6 2690. 474.4 2640. GR 474,3 2686. 472.6 2690. 470.1 2700. 472.1 2800. 472.3 2817' GR 466.3 2829. 463.6 2840. 472.2 2848. 471.3 2800. 469.8 3000. GR 468.1 3100. 468.7 3200. 469.8 3300. 471.5 3340. 474.4 3400. GR 479.4 3500. 480.6 3534. 481.5 3600. 480.5 3700' 477'7 3800' QT 9 4200 5900 6700 8600 6700 6700 6700 6700 6700 RT 7.1 1268 1497 NC 0.02 0.02 0.02 0.3 BT 7.1 1300 1382 X1 9494 29 1300 1382 64 64 64 BT 2 1301 481.6 480.4 1382 481.6 480.3 GR 489.4 1000 483.8 1100 482.0 1200 481.8 1207 GR 480.4 1301 478.8 1302 474.3 1307 473.9 1314 GR 467.9 1325 480.4 1328 480.4 1327 457.9 1337 X2 9526 NC .06 .07 BT X1 9590 16 1268 GR 488.4 1000 481.3 GR 466.6 1306 478,1 32 7.1 1300 32 32 1382 7.1 1268 1600 1426 64 64 64 1100 473.7 1200 477.3 1268 200.2 482.42 1000. 482.38 1047 481.32 479.47 1180 477.01 1188 469.78 481.03 1273 481.22 1295 486.94 1070 1207 1348 481.6 468.8 467.8 478.7 481.4 466.6 474.6 489.2 480.43 468.53 490.83 1300 1322 1356 1380 1600 1291 1600 2100 1110 1217 1385 25AUG99 12:01:93 PAGE 4 ST 200.2 GR 490.00 880 482.42 1000. 482.38 1047 481.32 GR 479.78 1146 479.47 1180 477.01 1188 469.78 GR 478.15 1231 481.03 1273 481.22 1295 486.94 BT 200'2 X1 10210 19 1180 1231 80 90 80 GR 490.0 850 483.42 1000. 483.38 1047 482.32 GR 480.78 1146 480.47 1180 478.36 1188 468.66 GR 469.30 1211 477.72 1222 480.08 1227 480.18 GR 479.07 1294 481.77 1336 483.38 1360 489.38 NC 0.099 BT 200.2 Xl 10470 19 1202 1284 380 180 260 GR 497.35 1000 494.23 1035 491.02 1089 490.35 GR 483.27 1169 482.07 1187 481.29 1203 469.31 GR 473.51 1238 478.42 1252 480.77 1284 480.14 GR 480.41 1363 481.01 1399 486.75 1414 489.78 BT 180.2 Xl 10655 16 1168 1231 150 180 GR 485.96 1000 486-12 1019 486'09 1039 GR 480.61 1142 481.27 1158 478.22 1186 GR 482.03 1231 481.10 1256 481.99 1306 GR 490.54 1340 BT 180.2 lI 10830 16 1200 1262 130 185 GR 489.22 1000 486.96 1040 485.40 1080 GR 482.13 1162 482.13 1200 480.47 1220 GR 473.19 1247 481.91 1262 482.04 1286 GR 490.56 1385 185 482.21 471.32 484.58 178 484.16 471.18 484.76 BT 200.2 Xl 11030 19 1217 1287 150 210 200 GR 490.0 965 486.46 1000 483.05 1065 482.05 GR 481.81 1192 481.58 1217 479.11 1224 474.21 1070 1207 1348 1070 1197 1231 1378 1115 1214 1304 1423 1078 1204 1320 1100 1228 1352 1114 1232 1263 1448 BT 7.1 1345 1615 X1 11230 13 1480 1550 190 290 260 GR 800 1000 498 1040 492 1120 490 1150 GR 480 1480 472.5 1500 480 1550 482 1870 480,43 468.53 490.83 481.43 468.86 479.48 488.34 469.57 480.91 481.34 470.63 485.54 483.17 471.97 485.93 481.83 472.80 484.83 482 490 1110 1217 1385 1205 1106 1119 1335 1123 1334 1371 1196 1242 1271 26AUG99 12:01:63 PAGB NC 0.075 QT 9 3600 5100 5700 7300 Xl 11380 21 1284 1390 1S0 GR 492.0 1000 488.70 lOSS 485.87 X1 11880 17 1222 1306 440 GR 493.43 1000 489.50 1080 486.53 GR 476.26 1233 471.78 1236 473.72 Xl 12420 21 1157 1246 430 GR 495.90 1000 498.57 1026 495.69 GR 487.42 1123 487.11 1147 488.86 GR 482.53 1183 477.92 1193 477.16 480 500 1141 485,74 1196 484.97 1222 1245 475.26 1251 480.04 1263 1306 486.13 1340 486.71 1356 490 540 1046 491.08 1068 489.64 1092 1157 487.21 1164 482.56 1173 1201 474.83 1206 474.52 1210 1246 489.06 1309 462.51 1356 BT 7.1 1373 1837 X1 12840 16 1458 1538 180 80 120 GR 604.4 1000 600.7 1100 497.0 1200 495.8 1296 20 79.2 30 12618 3O NC ,06 .07 .08 Xl 12675 15 1458 GR 504.4 1000 500.7 GR 487.9 1400 488.4 GR 489.6 1538 490.0 7.1 1373 1538 1538 60 60 60 1100 497.0 1200 495.8 1296 488.0 480.4 504.3 492.6 492.3 480.7 478.9 477.0 491.7 488.0 480.4 604.3 1317 1493 1900 491.6 1400 1449 1462 1486 1600 1317 1493 1900 DUPLICATION MODBL 26AUG99 12:01:83 NC .06 .075 .05 .1 .3 X1 14600 20 1676 1721 1825 GR 516.9 1000 512.6 1100 608.6 GR 499.0 1400 488.8 1500 490.8 GR 486.4 1713 490.0 1721 496.0 GR 806.6 1955 S06.8 2000 813.3 7.1 1575 1200 1600 1800 2100 1498 1925 504.8 489.8 503.4 517.7 1721 1302 1675 1900 2136 RT 7.1 1386 1575 X1 17970 14 1443 1499 1620 2450 3370 NC .06 .06 .048 .2 ,4 BT 7.1 X1 18085 13 1281 1437 115 115 GR 513 1000 612 1140 610 1159 GR 603 1298 500 1312 495.4 1331 40 510 505 RT X1 18125 12 1000 1150 GR 613 724 512 875 GR 496.8 1038 495.8 1113 GR 510 1204 512 1242 7.1 40 898 1150 7,1 565 976 1150 X1 18670 12 1000 1150 GR 514 767 513 872 GR 498.4 1038 498.4 1113 GR 513 1239 514 1299 i000 40 508 506 1002 548 510 510 BT 146.2 Xl 18786 27 1017 1191 116 116 116 BT 2 1017 517.2 612 1191 517.2 610,2 GR 512.3 1016 612 1017 805.1 1048 512,1 GR 804,5 1047 499 1069 499 1075 511.8 BT 145.2 X1 18884 27 1017 1191 98 98 98 BT 2 1017 517.2 812.5 1191 517.2 510.7 1428 1191 1390 1150 986 1154 1147 986 1162 1046 1075 1108 1138 1169 1045 1075 1108 1138 1169 490.0 487.0 507.8 519.2 504 500 505 507 507.8 512 512.1 511.8 499 499 510.2 512.5 499.5 1346 1685 1938 2200 1457 1499 1281 1411 1000 1162 1000 1168 1047 1077 1108 1144 1191 1047 1077 1108 1144 1191 25AU099 12:01:53 DUPLICATION MODEL BT 7.1 1002.9 1147.5 X1 18969 13 1000 1190 85 85 85 GR 519 788 514 882 913 943 512 986 GR 509.3 1000 499.9 1038 499.9 1113 809.3 1150 GR 512 1164 913 1213 515 1314 7.1 1007.5 1142.5 1000 1150 660 620 640 517 863 515 982 514 995 903 1113 512.4 1150 515 1161 ET 125.2 Xl 19659 13 1246 1399 50 50 GR 520 1000 518 1062 516 1189 GR 510 1263 503.3 1290 503.3 1351 50 515 510 1241 1382 ET 7.1 1226 1376 ll 19709 13 1226 1376 90 50 50 GR 520 1000 517 1098 516 1181 515 1226 GR 910 1252 503.6 1276 903.6 1310 509 1330 998 50 513 520 NC .06 .075 .05 .1 .3 ET 7.1 ll 19759 11 958 1067 50 50 1067 958 1136 510 510 512.4 920 512 910 503.8 525 994 1156 1000 1194 1246 1399 1240 1341 1000 1175 513.8 915 PAGE ET 7.1 1303 1530 ll 19944 14 1377 1416 150 190 150 GR 925.4 1000 522.6 1100 520.9 1200 516.3 1300 GR 505.8 1396 909.6 1400 506.3 1404 513 1416 BT 10.41 X1 20069 12 1241 1278 180 150 GR 524 1000 520 1083 516 1162 GR 509.8 1257 511 1278 514 1329 125 514 515 1221 1362 1377 1500 1241 1414 29AUG99 12:01:53 DUPLICATION MODBL PAGE 20279 18 1340 1401 260 130 210 S21 1000 $19 1037 817 1089 514 Xl 20479 13 1280 1324 75 140 OR 922 1000 818 1105 917 1166 GR 806.1 1291 908 1300 910 1311 X1 20779 15 1383 1413 200 300 300 GR 821 971 520 1007 818 1068 517 GR 919 1286 514.8 1320 914 1383 810 1141 1357 1448 1280 1324 1160 1396 1476 BT 7.1 1549 1862 X1 22510 23 1788 1779 1240 1180 1210 810 806 523 510 514 521.8 516.7 $19.1 930.2 1215 1366 1474 1288 1403 1243 1400 1496 1400 1726 1800 2200 DUPLICATION MOD~ 25AUG99 12:01:~3 T2 T3 J2 NPROP IPLOT NINV IDIR STRT METRIC HVINS Q WSBL FQ 0. 0. 0. 0. 0. 464.39 PAGg DUPLICATION MODEL 2SAUG99 12:01:53 PAGE HBC-2 WATMR SURFACE PROFILRS Version 4.6.2; May 1991 STBNCL .00 .00 .00 1103.00 .00 1103.00 .00 STBNCR .00 .00 1232.00 .00 1232.00 .00 .00 1300.00 .00 1409.00 .00 1624.00 DUPLICATION MOD~L 12:01:53 SECNO CWSEL Q VC~ TOPWID SSTA BNDST DIFWSP EG STENC~ ST~NCR 9494.000 477.80 6700.00 14.66 69.76 1303.44 1377.20 .00 480.84 .00 * 9494.000 477.50 8700.00 14.66 69.76 1303.44 1377.20 .00 480.84 1300.00 1382.00 9926.000 479.41 6700.00 11.24 75.27 1301.62 1380.89 .00 481.38 .00 .00 * 9526.000 479.41 6700.00 11.24 75.27 1301.62 1380.89 .00 481.38 1300.00 1382.00 9590.000 481.95 6700.00 1.96 736.54 1090.77 1827.31 .00 481.99 .00 .00 9590.000 481.90 6700.00 2.82 332.00 1268.00 1600.00 -.05 481.99 1268.00 1600.00 10120.000 481.85 6700.00 11,09 242.44 1058.43 1300.87 .00 483.57 .00 .00 10120.000 481.69 6700.00 11.93 172.86 1126.50 1299.36 -.16 483.75 1126.50 1326.50 10120.000 482.68 6700.00 8.97 313.61 994.90 1308.51 .00 483.74 .00 .00 10120.000 482.61 6700.00 9.77 181.38 1126.50 1307.88 -.07 483.95 1126.50 1326.50 10210.000 483.27 6700.00 9.78 309.03 1049.35 1358.38 .00 484.34 .00 .00 10210.000 483.45 6700.00 10.02 200.00 1105.50 1305.50 .18 484.63 1105.50 1305.50 10470.000 484.89 6700.00 6.19 253.92 1155.23 1409.15 .00 485.36 .00 .00 * 10470.000 485.16 6700.00 6.89 190.00 1153.00 1343.00 .26 485.79 1143.00 1343.00 10655.000 485,33 6700.00 6.91 277.63 1046.26 1323.90 .00 485.87 ,00 .00 10655.000 485.69 6700.00 7.39 180.00 1109.50 1289.60 .36 486.35 1109.50 1289.50 10830.000 488.78 5700.00 8.31 298.19 1070,33 1368.82 ,00 486.57 .00 .00 10830.000 486.21 5700.00 8.33 180.00 1141.00 1321.00 .43 487.06 1141.00 1321.00 11030.000 486.87 5700.00 5.96 301.08 595.96 1297.04 .00 487.28 .00 .00 11030.000 487.12 6700.00 7.74 150.13 1152,00 1302.13 .25 487.90 1152.00 1352.00 11230.000 487.41 6700.00 3.90 432.17 1195.32 1627.49 .00 487.56 .00 .00 * 11230.000 488.13 6700.00 4.18 270.00 1345.00 1615.00 .72 488.31 1345.00 1615.00 * 11380.000 487.47 5700.00 5.13 396.17 1081.13 1477.30 .00 487.78 .00 .00 * 11380.000 488.26 5700.00 4.28 425.05 1064.30 1489.35 .79 488.47 .00 .00 11880.000 488.67 5700.00 6.64 274.39 1097.05 1371.45 .00 489.24 .00 .00 11880.000 489,02 5700.00 6,19 284.47 1089.90 1374,37 .35 485.50 .00 .00 PAGE 11 DUPLICATION MODEL 25AUG99 12:01:53 DUPLICATION MODEL 28AUG99 12:01:83 SECNO CWSEL Q VCM TOPWID SSTA BNDST DIFWSP EG STBNCL STENCR 10479.000 819.47 8700.00 5.81 395.01 1066,27 1461,28 .00 519.77 .00 .00 20479,000 519,7= 5700.00 6.95 187.19 1202.68 1389.87 .24 820.20 1202.68 1389.87 20779.000 ~20.09 5700.00 5.62 443.96 1003.88 1447.84 .00 520.32 .00 .00 10779.000 520.80 5700.00 6.16 197.02 1215.98 1413.00 .51 520.97 1215.98 1413.00 22510.800 523.14 5700.00 6.34 736.22 1278.74 3015.96 .00 523.37 .00 .00 22510.000 524.14 5700.00 6.57 313.00 1549.00 1862.00 1.00 524.45 1549.08 1862.00 PAGE 13 PAGE DUPLICATION MODBL 25AUG99 12:01:S3 WARNING SBCNO= 18085.000 PROFILED WARNING SECNO= 18670.000 PROFILEs WARNING SECNO= 18670,000 PROFILE= WARNING SECNO= 18786.000 PROFILE= WARNING SECNO= 18786.000 PROFILEm PAGE I I I I I I I ! I I I I CITY OF COPPELL, TEX~S ( 480 Inuert' profile 3 .... 'profile 1 --- profile 4 ...... 4?6: profile Z :--- 1 Distance e t. 464---, - 0 · n 468: ...... 6718 452'- , ,, ,,',t,," "" ""~ 8 588 1888 1588 2888 2588 3888 3588 ~888 ~588 5888 5588 6888 461.2 x 7045000'/'~ I x 461.8 x 460. ,/ / 472.2 x 47 x 467.2 46~, ~ 467.0 X 465.2 x 465.3 X 464:2 x 464.8 \ i\ ) 466.4 ",, 470.8 \ x \ x 465.4 CO TTT.N WO~D ) ~D 465.4 x 465.8 ¢ , 5 69._.b x 4/0.0 x 467,5 / PARKING x 461.6/'i x 461.3 461.4 x .8 x 461.6 0 0 bJ x 461.4 50.4 x 468.9 \) WORK x 459.4 "AS BULL1 x 460,2 x 463.7 ,~3. COT FLOODPLAIN RECLAMATION FOR COTTONWOO0 BRANCH 80ENTON CREEI~ CITY OF COPPELL ..... DALLAS COUNTY t. TEXAS Version 4.6.2; Ma!~ 1991 ~XISTING CONDITION FLOODWAY MODEL EXISTING CONDITION FLOODWAY MODEL 18OCT99 14:02:10 PAGE i Version 4,6.2; May 1991 T~IS RUN F, XECUTED 180CT99 14:02:10 -10 -10 54 7300 1169. 1255. 1470. FQ 7300 7300 1179. 1274. 1486. NC .02 .02 .02 .3 ET 7.1 1102 1232 Xl 32916. 10 1103 1232 100 100 100 GR 466.81 1103 466.4 1124 466.2 1132 452.2 1140 462.2 1171.26 GR 466.2 1171.26 466.2 1173.76 462.2 1173.76 452.2 1205 466 1232 ET 7.1 1103 1232 ll 33016. 10 1103 1232 100 100 100 952 floodwaV measured from effective model. 1180 I80CT99 14:02:10 ll 33116 35 GR 469 913 GR 463 956 GR 457 978 GR 455 1012 GR 462 1036 GR 453 1240 560 1036 100 100 100 468 927 467 935 466 462 960 461 963 460 ET 7.1 815 Xl 33560 33 975 1030 380 470 444 GR 470 790 465 832 464 837 463 GR 462 940 462 975 461 982 460 ET X1 34075 33 940 1035 GR 470 822 468 845 GR 460 962 459 972 942 967 992 1026 1172 1346 1490 1130 840 988 1003 1015 1162 1396 462.0 1230. 463.0 1262. 464.0 1320. 465.0 1408. 466.0 1418. 948 970 1010 1030 1190 1365 1540 940 1007 1195 1260 1275 1380 PAGE 2 RXISTING CONDITION F~OODWAY MODEL 180CT99 14:02:10 ST 7.1 680 X1 34472 27 98~ 1015 460 350 397 GR 470 542 465.8 555 465.8 786 466 Xl 34822 2~ 940 1045 370 260 250 GR 470 828 468 835 466 940 464 GR 468.2 998 458.2 1010 466 1045 466 BT 7.1 850 NC .065 .06 .05 .1 .3 Xl 35460 25 96~ 1032 480 300 638 GR 472 830 470 845 468 880 467.9 GR 468 965 466 972 464 980 462 1200 797 994 1095 1268 1324 1375 982 1162 1228 1503 1690 1460 910 990 1032 1440 1775 ET 7.1 880 1530 X1 35540 22 980 1080 75 70 80 GR 472 868 470 880 468 905 468 950 466 457.3 464 468 466 PAGE 940 1006 1226 1272 1419 993 1213 1230 1580 1760 940 993 1520 1800 BXISTING CONDITION FEOODWAY MODEL 180CT99 14:02:10 BT Xl 38690 18 GR 472 860 GR 464 990 GR 466 1015 GR 466 1580 NC .068 .06 6710. 31. 1260. Xl6710 31 GR474.2 866. GR472.8 1016. GR468.0 1172- GR462,3 1275. GR466.3 1472. X1 8000. 35. GR 479.3 1990. GR 477. 2240. GR 475.9 3540. QT 9 BT X1 9430 GR 498.5 GR 483.2 GR 479.5 GR 466.5 OR 475.3 NC 0.02 ET X1 9494 BT 2 GR 489.4 GR 480.4 GR 467.9 GR 480.4 GR 480.3 GR 482.6 7.1 860 1600 965 1015 150 150 150 470 870 468 920 468 968 7.1 1083. 1286. 1100 760 1165 1250 1286 250 280 250 1670. 955. 1093. 1257. 1322. 1622. 1872. 466 464 466 474. 467.5 460.6 466.3 466.8 473,0 966. 1122. 1266. 1372. 1672. 1922. 985 1010 1528 7.1 2693. 3202. 2817. 2848. 990. 1060. 1338. 478,4 2040. 478.3 2090. 477.5 2140. 477.1 2190. 476.7 2290. 476.6 2340, 476.4 2440. 476.2 2490. 4200 5900 6700 8600 6700 6700 6700 6700 6700 7.1 1268 1497 25 1268 1426 1340 1250 1430 841 496.1 891 494.3 941 488.0 991 482.8 1012 1031 483.2 1038 482.8 1060 481.8 1091 480.5 1141 1171 474.7 1191 473.7 1200 477.3 1268 466.6 1291 1306 478.1 1426 473.6 1440 474.3 1800 474.6 1600 1700 481.3 1800 483.7 1900 487.1 2000 489.2 2100 0.02 0.02 0.3 0.5 7.1 1300 1382 29 1300 1382 64 64 64 1301 481.6 480.4 1382 481.6 480.3 1000 483.8 1100 482.0 1200 481'8 1207 1301 478.8 1302 474.3 1307 473.9 1314 1325 480.4 1328 480,4 1327 467.9 1327 481.6 468.8 467.8 478.7 481.4 1300 1322 1356 1380 1600 EXISTING CONDITION FLOODWAY 8OD~L 180CT99 14:02:10 PAGE 5 X2 NC .06 .07 BT X1 9590 15 1268 GR 488.4 1000 481.3 GR 466.6 1306 478.1 GR 475.3 1700 481,3 7.1 1300 32 32 32 1382 7.1 1268 1600 1426 64 64 64 1100 4?3.7 1200 477.3 1268 1426 473.6 1440 474.3 1500 1800 483.7 1900 487.1 2000 NC .06 .075 .05 .1 .3 ET 200.2 X1 10120 15 1180 1273 930 610 530 GR 490.00 850 482,42 1000. 482.38 1047 481.32 GR 479.78 1146 479,47 1180 477.01 1188 469,78 GR 478.15 1231 481-03 1273 481'22 1295 486'94 BT 200.2 Xl 10120 15 1180 1273 10 10 10 GR 490.00 850 482.42 1000, 482.38 1047 481-32 GR 479~78 1146 479.47 1180 477.01 1188 469.78 GR 478,15 1231 481.03 1273 481.22 1296 486,94 1070 1207 1348 1070 1207 1348 466.6 474.6 489.2 480.43 468.53 490.83 480,43 468.53 490.83 1291 1600 2100 1110 1217 1385 1110 1217 1385 EXISTING CONDITION FLOODWAY MODB~ 180CT99 14:02:10 PAGE 6 T2 T3 J1 ICHECK INQ J2 NPROF IPLOT CITY OF COPPELL, TBX~ (CBENC )12/2S/89 NINV IDIR STRT METRIC HVINS Q WSEL 0. 0. 0. 0. 0. 464.39 ITRACE 180CT99 14:02:10 BXISTING CONDITION FLOODWAY MODEL 14:02:10 SBCNO CWSBL Q DIFWSP ELMIN VCH SSTA ENDST TOPWID 6710.000 470.46 7300.00 .00 460.60 4.20 1082.26 1860.73 778.47 6710.000 470.98 7300.00 .52 460.60 4.52 1083.00 1670.00 887.00 8000.000 473.07 7300.00 .00 463.90 0.14 2680.54 3372.54 692.00 8000.000 473.67 7300.00 .60 463.90 5.48 2693.00 3202.00 509,00 9430.000 477,31 6700.00 .00 466.60 6.16 1180.65 1731.81 537.33 9430.000 478.06 6700.00 .85 466.50 6.77 1268.00 1497.00 228.81 9494.000 477.80 6700.00 .00 467.80 14.66 1303.44 1377.20 69.76 9494.000 477.50 6700.00 .00 467.80 14.66 1303.44 1377.20 69.76 9526.000 479.41 6700.00 .00 467.80 11.24 1301.62 1380.89 75.27 9526.000 479,41 6700.00 .00 467.80 11.24 1301.62 1380.89 76.37 9590.000 481.98 6700.00 .00 466.50 1.96 1090.77 1827.31 736.54 9590.000 481.90 6700.00 -.05 468.50 =.82 1268.00 1600.00 332.00 10120~000 481.85 6700.00 ,00 468.53 11.09 1068.43 1300.87 242.44 10120.000 481.69 6700.00 -.16 468.63 11.93 1126.50 1399.36 172.86 10120.000 482.68 6700.00 .00 468.83 8.97 994.90 1308.81 313.61 10120.000 482.61 6700.00 -.07 468.53 9.77 1126.80 1307.88 181.38 PAGE 8 EXISTING CONDITION PLOODWAY MODEL 180CT99 14:02:10 PAGE 9 WARNING SECNOm 32916.000 PROFILE= WARNING SECNO= 32916.000 pROFILEs CAUTION SECNO~ 33116.000 PROFILE= CAUTION SECNO= 33116.000 PROPILE= WARNING SECNO= 34472.000 PROFILE= WARNING SECNO= 35460.000 PROPILE~ BXISTING CONDITION MULTIPLE PROFILE MODEL Version 4.6,2; May 1991 RUN DATE 180CT99 TIME 14:40:59 PAGE HBC-2 WATER SURFACE PROFILES Version 4.6.2; MaV 1991 -10 -10 QT 4 4900 6400 ?300 9400 NC .085 .088 .046 .1 .3 X1 32816. 17. 1157. 1183. 95. 88, GR 459. 1000. 489.8 1073. 489.8 1157. 452.2 1169. 452.2 NC ,02 .02 .02 .3 7.1 1103 1232 Xl 32916. 10 1103 1232 100 100 100 GR 466.81 1103 456.4 1124 466,2 1132 452.2 GR 466.2 1171.26 466.2 1173.?S 482,2 1173.75 452.2 7.1 1103 la32 1179. 1274. 1486. 1140 452.2 1171.25 1205 466 1232 X1 33016. 10 1103 1232 100 100 100 GR 466.81 1103 486.4 1124 456.2 1132 452,2 1140 452.2 GR 466,8 1171,28 466.2 1173.75 485.2 1173.75 452.2 1205 466 1171.25 1232 EXISTING CONDITION MULTIPLE PROFILE MODEL 33116 35 960 1036 100 100 100 469 913 468 927 467 935 463 946 462 960 451 963 460 X1 33560 33 975 1030 380 470 444 GR 470 790 465 832 464 837 463 GR 462 940 462 975 461 982 460 GR 455 996 454.5 998 454.1 1000 454.3 GR 466 1008 457 1011 458 1013 460 462.0 1230. 463.0 1262. 464.0 1320. 465.0 1408. 466.0 1418. 542 967 992 1026 1172 1346 1490 840 988 1003 1015 1162 1395 915 990 1168 1237 1272 1340 PAGE 948 970 1010 1030 1190 1365 1540 940 1007 1195 1260 1275 1380 18OCT99 14:40:89 X1 34472 GR 470 GR 465 GR 458 GR 465 GR 467 GR 467 34472. 470 464 464 460 465 468 470 X1 34822 25 940 1045 370 260 350 GR 470 828 488 838 466 940 464 GR 458.2 998 488.2 1010 466 1045 466 7.1 850 1460 X1 35460 25 965 1032 480 300 638 GR 472 830 470 845 468 880 467.8 GR 468 965 466 972 464 980 462 GR 459 1002 462 1005 464 1020 466 GR 466 1115 466 1140 465.2 1300 466 GR 469 1610 471 1750 471 1760 471 7.1 880 1530 X1 35540 22 980 1080 75 70 80 GR 472 868 470 880 468 905 468 GR 466 988 464 990 462 996 469.8 GR 462 1008 464 1015 466 1048 467,3 GR 466 1120 466 1140 465.3 1298 466 GR 469 1615 471 1810 7.1 860 1600 797 994 1095 1268 1324 982 1162 1228 1503 1690 910 990 1032 1440 1775 950 997 1080 466 457.3 464 468 466 462 460 460 465 470 468 459 466 468 472 940 1006 1226 1272 1419 993 1213 1230 1580 1760 940 993 1105 1520 1800 180CT93 14:40:59 PAGE 4 X1 35690 18 GR 472 860 GR 464 990 GR 466 1015 GR 466 1580 NC .065 .06 6710. 31. 1250. X16710 31 GR474.2 866. GR472.8 1016. GR468.0 1172. GR462.3 1275. GR466.3 1472. GR466, 1722. 965 1015 150 150 150 470 870 468 820 468 965 462 993 460 998 460 1005 466 1100 466 1188 466 1240 468 1590 471 1788 7.1 1083. 1670. 1286. 1100 7501165 1250 1286 250 250 280 Xl 8000. 35, 2817. 2848. GR 479.3 1990. 478.4 2040. GR 477. 2240. 476.7 2290. GR 475.9 2540. 476,8 2547. 4200 5900 6700 26 1268 1426 841 496.1 891 1031 483.2 1039 1171 474.7 1191 1306 478.1 1426 1700 481,3 1800 0.02 0.02 0.3 29 1300 1382 1301 481.6 480.4 1000 483.8 1100 1301 478.8 1302 1325 480.4 1325 QT 4 X1 9430 GR 498.5 GR 483,2 GR 479.6 GR 466.5 GR 478.3 NC 0.02 X1 9494 BT 2 GR 489.4 GR 480.4 7.1 2693. 3202. 474. 467.5 460,6 466.3 466.8 473.0 966. 1122, 1256. 1372. 1672. 1922. 990. 1060. 1335. 478.3 2090. 477.5 2140. 477.1 2190. 482.8 480.S 466.6 474,6 489.2 481.6 468.8 487.8 478.7 481.4 8600 7.1 1268 1497 1340 1250 1430 494.3 941 488.0 991 482.8 1060 481.8 1091 473.7 1200 477.3 1268 0.6 7.1 1300 1382 64 64 64 1382 481.6 480.3 482 . 0 1200 481.8 1207 474.3 1307 473.9 1314 480.4 1327 467,9 1327 471.3 1358 472 . 7 1366 481.5 1400 481.2 1500 486.4 1900 492 . 1 2000 7.1 1300 1382 1012 1141 1291 1600 2100 1300 1322 1356 1380 1600 EXISTING CONDITION MULTIPLg PROFIL= MODBL 180CT99 14:40:89 X2 9526 NC .06 .07 7.1 1268 Xl 9590 15 1268 1426 64 GR 488.4 1000 481,3 1100 473.7 GR 466.8 1306 478.1 1426 473.6 GR 478.3 1700 481.3 1800 483.7 NC .06 .075 Xl 10120 18 1180 GR 490.00 850 482.42 GR 479.78 1146 479.47 GR 478.15 1231 481.03 200.2 1273 1000. 1180 1273 200.2 482.38 477.01 481.22 32 32 32 X1 10120 16 1180 1273 10 GR 490.00 880 482.42 1000. 482.38 GR 479.78 1146 479.47 1180 477.01 GR 478.15 1231 481.03 1273 481.22 1600 64 64 1200 477.3 1268 466.6 1291 1440 474.3 1800 474.6 1600 1900 487.1 2000 489.2 2100 510 830 1047 481.32 1070 480.43 1110 1188 489.78 1207 468.83 1217 1296 486.94 1348 490.83 1385 1047 481.32 1070 480.43 1110 1188 469.78 1207 468.53 1217 1298 486.94 1348 490.83 1385 T3 180CT99 14!40:59 EXISTING CONDITION MULTIPLE PROFILE MODEL 463.1 CMNIM PAGE J1 ICHECK INQ NINV IDIR STRT METRIC 0 4 0 0 0 O J2 NPROF IPLOT PRFVS XSECV XSECH FN 0 0 463.39 ALLDC IBW CKNIM PAGE ~XISTING CONDITION MULTIPLE PROFILB MODBL 18OCT99 14:40:59 T3 CITY OF COPPMLL, TB~ (CBBNC }12/26/89 0 S 0 0 0 MBTRIC }F/INS Q 0 0 0 FN ~j~LDC IBW 464.1 CHNIM FQ PAGB 180CT99 14:40:69 Version 4.6.27 May 1991 32816.000 462,31 4500.00 .00 452.20 6.10 1000.00 1474.96 474.96 32816.000 463.10 6400.00 .79 452.20 6.43 1000.00 1487~40 487.40 32816.000 463.39 7300.00 .29 452.20 6.66 1000.00 1491.46 491.46 32816.000 464.10 9400.00 .71 452.20 6.95 1000.00 1500.80 500.80 32916.000 462.32 4500.00 .00 452.20 5.11 1112.06 1224.80 110.23 32916.000 463.01 6400.00 .69 452,20 6.68 1110.67 1226.15 112.98 32916.000 463.25 7300.00 .24 462.20 7.41 1110.19 1226.61 113.93 32916.000 463.81 9400.00 .56 452.20 8.96 1109.05 1327.71 116.16 33016.000 462.36 4500.00 .00 452.20 9.08 1111.97 1224.88 110.41 33016.000 463.09 6400.00 .72 452.20 6.62 1110.61 1226.30 113.29 33016.000 463.34 7300.00 .26 452.20 7.33 1109,99 1226.80 114.31 33016.000 463.96 9400.00 .62 452.20 8.81 1108.75 1228.01 116.76 33116.000 462.42 4500.00 .00 452.50 10.27 958.33 1210.86 252.52 33116.000 463,63 6400.00 1.21 452.50 10.32 953.47 1294.32 340,84 33116.000 463.96 7300.00 .33 462,50 10.69 952.15 1322.72 370.57 33116.000 464.52 9400.00 .56 462.50 11.68 949.92 1370.20 420.28 33560.000 465.81 4500.00 .00 454.10 5.82 826.16 1157.00 331.84 33560.000 466.68 6400.00 .87 494.10 6.56 817.92 1197.82 379.90 33560.000 467.06 7300.00 .38 494.10 6.81 814.77 1218.26 403.49 33560.000 467.83 9400.00 .77 454.10 7.32 808.29 1266.83 458.54 34075.000 466.97 4500.00 .00 467.00 4.72 881.07 1484.78 540.28 34075.000 467.91 6400.00 .99 457.00 5.02 847.97 1495.15 596.08 34075.000 468.31 7300.00 .39 457.00 5.13 841.47 1499.07 611.28 34075.000 469.11 9400.00 .81 457.00 5.38 832.20 1507.13 638.63 34472.000 467.66 4500.00 .00 457.30 4.18 549.25 1455.58 898.58 34472.000 468.56 6400.00 .90 457.30 4.08 546.46 1464.60 918.15 34472.000 468.94 7300.00 .38 457.30 4.07 648.29 1468.38 933.09 36472.000 469.73 9400,00 .79 457.30 4.11 542.86 1475.27 933.42 18OCT99 14:40:59 ~XISTING CONDITION MULTIPLE PROFILE MODBL SBCNO CWSEL Q DIPWSP ELMIN VCH SSTA E~DST TOPWID 34822.000 467.98 4500.00 .00 458.00 2.38 837.62 1609.33 771.81 34822.000 468.82 6400.00 .86 458.00 2.67 832,14 1678.27 843.12 34822.000 469,18 7300.00 .37 468.00 2.79 830.86 1702.77 871.91 34822.000 469.86 9400.00 .77 488.00 3.02 828.18 1756.94 928.78 * 36460.000 468.33 4500.00 .00 459.00 4.58 874.17 1549.98 675.80 * 35460.000 469.18 6400.00 .84 459.00 4.63 859.31 1622.77 763.47 35540.000 468.59 4500.00 .00 459.50 3.51 897.68 1686.02 688,34 36540.000 469.38 6400.00 .80 459.50 3.74 887.70 1652.43 764.72 36540.000 469.73 7300.00 .34 459.50 3.83 883.42 1685.84 802.42 35540.000 470.46 9400.00 .73 459.50 4.00 877.24 1787.38 880.14 35690.000 468.93 4600.00 .00 460.00 3.41 896.69 1641.28 744.59 35690.000 469.70 6400.00 .77 460.00 3.65 877.44 1683.64 806.20 35590.000 470.03 7300.00 .33 460.00 3.74 869.79 1702.26 832.46 35690.000 470.74 9400.00 .71 460.00 3.92 866.25 1741.25 875.00 6710.000 469.40 4500.00 .00 460.60 3.88 1085.46 1838.81 753.09 6710.000 470.14 6400.00 .74 460.60 4.11 1083.32 1854.10 770.88 6710.000 470.46 7300.00 .32 460.60 4.20 1083.26 1860.73 778.47 6710.000 471.15 9400.00 .69 460.60 4.39 1080.18 1875.69 798.51 8000.000 472.15 4500.00 .00 463.90 4.61 8691.80 3353.44 645.63 8000.000 472.79 6400.00 .64 463.90 4.98 2686.03 3366.87 680.84 8000.000 473.07 7300.00 .28 463.90 S.14 1580.54 3372.54 692.00 8000.000 473.67 9400.00 .59 463.90 5.44 2668.73 3384.77 716.04 9430.000 476.11 4200.00 .00 466.50 4.62 1185.07 1713.70 477.23 9430.000 476.90 8900.00 .78 466.50 5.01 1181.85 1726.58 519.99 9430.000 477.21 6700.00 .31 466.50 5.16 1180.55 1731.81 537.33 9430.000 477.85 8600.00 .64 466.50 5.48 1177.88 1742.47 561.21 9494.000 475.49 4200.00 .00 467.80 12.97 1305.88 1372,52 62.84 9494.000 476.90 5800.00 1.41 467.80 14.20 1304.11 1375.80 57.69 * 9526.000 477.03 4200.00 .00 467.80 9.91 1303.98 1376.08 68.10 9526.000 478,72 5900.00 1.69 467.80 10.84 1302.09 1380.02 73.93 9526.000 479.41 6700.00 .69 467.80 11.24 1301.62 1380.89 75.27 9526.000 480.55 8600.00 1.14 467.80 12.88 1300.87 1382.00 81.13 9590.000 479.00 4200.00 .00 466.50 2.08 1130.23 1761.71 631.49 9590.000 481.08 5900.00 2.07 466.80 1.99 1102.82 1796.48 693.60 9590.000 481.95 6700,00 .87 466,50 1.96 1090.77 1827.31 736.54 9590,000 483.89 8600.00 1.94 466.50 1.93 1063.48 1905.68 842.20 PAGE 180CT99 SECNO CWSEL Q DIFWSP BLMIN VCM SSTA BNDST TOPWID 10120.000 480.07 4200.00 .00 468.63 11.20 1129.75 1259.05 129.30 10120.000 481.58 5900.00 1.51 468.83 10.Sl 1064.32 1298.3S 234.03 10120.000 481.85 6700.00 .27 468.53 11.09 1088.43 1300.87 242.44 10120.000 483.32 8600.00 1.47 468.63 9.81 982.17 1314.47 332.30 10120.000 481.27 4200.00 .00 468.83 8.17 1072.60 1295.39 222,79 10120,000 482.27 5900.00 1.00 488.53 8.77 1049.45 1304,70 235.25 10120.000 482.68 6700.00 .41 468.83 8.97 994.90 1308.81 313.61 10120.000 483.57 8600.00 .89 468.53 9.23 977.07 1316.86 339.79 18OCT99 14:40:59 W~RNING SECNO= 32916.000 PROFILE= WARNING SECNO= 32916.000 PROFILE~ WARNING SECNO= 32916.000 ~ROFILE= WARNING SECNOz 32916.000 PROFILEz BXXSTING CONDITION MULTIPL~ PROFILB MODEL WARNING SBCNO= 10120.000 PRO[ILS= i EXISTING CONDITION MODg~ W/~FLTIMATE FLOWS Version 4.6.2; May 1991 RUN DATE 180CT99 TIME 10:50:39 * ~XISTING CONDITION MODEL W/ULTIMATE FLOWS Version 4.6.2; May 1991 T2 T3 0 2 0 0 0 0 0 0 -10 -10 QT 1 8390 NC .02 .02 .02 .3 .5 X1 33016. 10 1103 1232 10O 100 100 X1 33B60 33 975 1030 380 470 444 GR 470 790 46S 832 464 837 463 840 462 845 GR 46a 940 462 97S 461 982 460 988 4~9 994 X1 33116 3~ 960 1036 100 100 100 GR 469 913 468 927 467 93S ~66 942 46S 948 10:60:39 EXISTING CONDITION MODEL W/ULTIMATE FLOWS Xl 34075 33 940 1035 505 ~20 518 GR 470 822 468 845 467 880 466 918 465 940 GR 460 962 459 972 488 985 487 990 457 1007 X1 34472 27 985 1015 460 350 397 GR 470 542 465.8 558 465.8 786 466 797 466 940 Xl 34822 26 940 1045 370 260 350 GR 470 828 468 835 466 940 464 982 462 993 GR 458.2 998 4S8.2 1010 466 1045 466 1162 460 1213 GR 459 1220 459 1222 458 1224 458 1228 460 1230 GR 46~ 1248 465 1320 464 1410 464 1503 468 1880 GR 466 1590 467 1596 468 1610 469 1690 470 1760 X1 35460 25 965 1032 480 300 638 GR 472 830 470 845 468 880 467.5 910 468 940 X1 35540 22 980 1080 75 70 80 GR 472 868 470 880 468 905 468 Xl 35590 18 965 1015 150 150 150 GR 472 860 470 870 468 920 468 GR 464 990 462 993 460 995 460 GR 466 1015 466 1100 466 1188 466 NC GR GR GR GR GR .065 6710 474.2 472.8 468.0 462.3 466.3 466. .06 866. 1472. 1722. ,05 1260 474. 472.6 468.7 469.4 466.3 466.8 1286 250 260 250 916. 474.1 926. 474.2 1222. 468.? 12~0, 462.6 1286. 467.? 1315. 467.4 1772. 468.6 1822. 471.0 965 466 985 1005 464 1010 1240 466 1528 555. 474. 966. 1093. 467.5 1122, 1257. 460.6 1255. 1322~ 466.3 1372. 1622. 466.8 1672. 1872. 473.0 1922, BXISTING CONDITION MODBL W/ULTIMAT~ ~LOWS 180CT99 10:50:39 PAGE 3 GR 475. 1937. QT GR GR GR GR GR I 8710 8000. 35. 479.3 1990. 477, 2240. 475.9 2540. 474.3 2696. 465.3 2829. 468.1 3100. 2817. 2848. 890. 1068. 1336. 478.4 2040. 478.3 2090. 477.5 2140. 477.1 2190. 476.7 2290. 476.6 2340. 476.4 2440. 476.2 2490. 476.8 2847. 474,8 2668. 474.5 2590. 474.4 2640. 472.6 2690- 470.1 2700. 472.1 2800. 472.3 2817. 463.9 2840. 472.2 2848. 471.3 2900. 469.8 3000. QT i 8260 X1 9430 26 1268 1426 1340 1250 1430 GR 498.5 841 496.1 891 494.3 941 488.0 991 GR 483.2 1031 483.2 1039 482.8 1060 481.8 1091 GR 479.5 1171 474.7 1191 473.7 1200 477.3 1268 GR 466.5 1306 478.1 1426 473.6 1440 474.3 1900 GR 476.3 1700 481.3 1800 483.7 1900 487.1 2000 NC 0.02 0.02 0.02 0.3 0.5 X1 9494 29 1300 1382 64 64 64 BT 2 1301 481.6 480.4 1382 481'6 480'3 GR 489.4 1000 483.8 1100 482.0 1200 481.8 1207 GR 480.4 1301 478.8 1302 474.3 1307 473.9 1314 GR 467.9 1325 480.4 1325 480.4 1327 467.9 1327 GR 480.4 1366 480.4 1358 471.3 1358 472.7 1366 GR 480.3 1382 481.6 1382 481.5 1400 481.2 1600 GR 482.6 1700 484.3 1800 486.4 1900 492.1 2000 9526 32 32 33 NC .06 .07 .05 X1 9590 15 1268 1426 64 64 64 GR 488.4 1000 481.3 1100 473.7 1200 477,3 1268 GR 466.5 1306 478.1 1426 473.6 1440 474.3 1500 GR 475.3 1700 481.3 1800 483.7 1900 487.1 2000 X1 10120 15 1180 1273 530 510 GR 490.00 850 482.42 1000. 482.38 1047 GR 479,78 1146 479,47 1180 477.01 1188 GR 478.15 1231 481.03 1273 481.22 1296 482.8 480.5 466.6 474.6 489.2 Xl 10120 15 1180 1273 10 GR 490.00 850 482.42 1000. 482.38 G~ 479.78 1146 479.47 1180 477.01 GR 478.15 1231 481.03 1273 481.22 481.6 468.8 467.8 478.7 481.4 466.6 474.6 489.2 1012 1141 1291 1600 2100 1300 1322 1356 1380 1600 1291 1600 2100 1047 481.32 1070 480.43 1110 1188 669.78 1207 468.63 1217 1295 486.94 1348 490,83 1386 530 481,32 1070 480.43 1110 469.78 1207 468.53 1217 486.94 1348 490.83 1385 180CT99 10:50:39 PAGE Version 4.6.2; May 1991 SBCNO CWSBL Q ELMIN VCH SSTA BNDST TOPWID 33016.000 463.88 8390.00 452.20 7.96 1108.97 1227.79 116.32 33116.000 464.40 8390.00 4S1.50 10.80 9S0.40 1369.00 418.61 33860.000 467.41 8390.00 4S4.10 7.18 811.77 1240.70 428.93 34075.000 468.72 8390.00 4S7.00 9.30 836.75 1603.18 628.04 34472.000 469.38 8390.00 4~7.30 4.11 844.02 1472.46 928.44 34822.000 469.58 8390.00 458.00 2.92 829.46 1730.89 901,43 39460.000 469.93 8390.00 459.00 4.71 846.09 1675.68 829.97 35540.000 470.11 8390.00 459,50 3.93 879.34 1723.21 843.87 35690.000 470.41 8390.00 460.00 3.88 867.94 1722.61 884.66 6710.000 470.82 8390.00 460.60 4.31 1081.16 1868.29 787.13 8000,000 473.44 8710.00 463,90 8.42 2673.31 3380.03 706.72 9430.000 477.72 8280.00 466.50 8.46 1178.43 1740.29 S56.72 9494.000 478.89 8280.00 467.80 1S.43 1302.24 1379.73 73.49 9526.000 480.69 8250.00 467.80 12.36 1300.92 1382.00 81.08 9590.000 483.S6 8280,00 466.~0 1,93 1068.10 1894.37 826.27 10120.000 482.83 8250.00 468.~3 10.62 991.81 1309.95 318.1S 10120.000 483.28 82~0.00 468.S3 9.62 983.11 1314.03 330.92 BXISTING CONDITION MODEL W/ULTIMATB FLOWS PROFILB~ 33116.000 PROFI~g~ 33116.000 PROFILB~ 33S60.000 PROFILB, i EXISTING CFIN][]ITIDN ~/ATER ~URFACE PRDFILES ..., Legend: Nil: Floodplain Floodway Cross Section 331+16 \ \./ x HEFFIELD --.A I, 13:21 8 ------■k-. . :,....... , 1 0 .1.`■ NZ 0 Aj.5._..;s_.9w:fr-- a . Ira 1,7- i +I d 1 1 1, 119.) W ----- - . A ia.' .1". , --- tt ' :N ,li. °NORRIS T= N HYDROLOGY ENGINEERING. IN . C. 111.1118/11/12/ mamarts MO 101190 In (UV 411-0116 MT) IT4-111115 1 '''. 1 ‘111111 1 ,\ Ci Ati i l y 4 1 67: 1 =M >1 --...11141 „t ,,,,,,...,..4110P Conditional Letter ‘11°.°, 'iajAkil 11 . tr A, 1 411 1111h_ . i Ailli N , x Of Map Revision -- il 70.8 •1,411:1 . . . For -- A6. 1),‘ , , Cottonwood Creek D -, q 1 1 Illi ‘ lb. .1 (-; pm cl § / Acks, ^4* - \ 0-,74is ., ,,,, At j 0 C f op c p o e p l p l e H i l ig h ool EXISTING CONDITION ...... Dmaii9 ?(,...._ S, I p7 6 I 1 irp.d p \ 0 o V i .. ... . .. .. o''': 0 • 4 I V4' : 7-." --1; (4" \ P to ( 1 wiLig' *,,4*,..,„,,"•..,,, Ic,?. x , if irp . ,p. /AT- 1, ill v) Alli ...f , ,, j ,....- 63.,.•,... to 4 , 4 , ,.9. 1 ( , ) > 0 E 11.1..P.- 1( `-- 467. I , ,........._*__Itelii...... - - ___.......- -3w Milli.=...... . tif x .- - ,4 . 11W- -.4.00• ° ' 4" `Nop 414, , i 14, U. e .1 7 Mill ( C I Z 0 -C C ; if # 0 • 4.., 0 O Pg.4 40 1, 1 o CD ill 1 11 4 631 .... /< li 4 /41006, 110111!111°____...,,P:467.2 mi l 0 EY' _E _ ..... 1\ 1 r,..itir-oc7 __</t fu, - 0 _11••■■_____ , 11. ............,,a,,,___,_ _, 472.9 47 0 if / -k ii,_, ,74 41 - P _ 465.2 x f , i ) k Iw rik44%'N...... 1 .0iiiiimir t, 1 li \ .■') J. i z..,...... el. N.'N'tt, Ito l V r x4 4 / )4 5 I " — ----- ,.-• , %• .- 11;5,..= 1 ,..‘ -------..— AMP , I Illi I/ I Mit* ,/,' • /• " i AV . 4 014 1 17 j. t ; • ' r -111LNI ill. ci OP .4.4% 461 / ll „.„ ,_ , it: ,I .\,\ ii 5 _ sa- 1-&_m_th_41,0•11 / ? x , , ,, ,0 0 0.9/0i/ ,r. . ..... -.:-. ' i! -'-'-''- ill, ' \ . .., • , , ; ..,,t ,, , a • --- -,-- / %I & ■ I I ) 1 1INIEW _.... ii , ?J- o i : Pli I 1 1 1 4 1 • 1 I il ill 1 1 4 7 - 1 I CI 11 I , .4=winaEs t ii 0' x ' • : : 1 ■ ' ' I'diEll . I / 6 - – — — / N .1 • i , A■ A , 4 , 1 , Ag ,tr 1 . , „, i n IPAM As. o l ' 141 k ",, Ali i ), W/S 466.2 :11 0 ' L--- vbax- .7A .. a 1 k . , ., 8 ---::_.A L ) I it. - -.4 11 ik _.. ti III' ,.. 4. • .3 471. i , * Version 4.6.2; MaV 1991 * RUN DATB 220CT99 TIMB 14:33~95 PROPOSBD CONDITION MODBL X X 7_v_xXFJa~ XXXX/ X X X X X X X X X XXXXXaC( XXXX X X X X X X X X X X X x XJLvJJa~X XXX/X 230CT99 14:33:55 NC NC .02 .02 ,02 .3 .9 BT 7.1 1103 1132 X1 32916. I0 1103 1232 100 100 100 floodway measured from effective model, 6400 7300 9400 7300 7300 7300 7300 7300 220CT99 14:33:55 FT 7.1 952 X1 33116 26 960 1021 100 100 100 X3 1155 475 GR 469 913 468 927 467 936 466 G~ 463 956 462 960 461 963 460 1200 942 967 993 1324 7.1 831 1122 970 1010 1348 1490 X1 33S60 30 976 1132 380 470 444 GR 470 790 46S 832 464 837 463 840 462 845 GR 462 940 462 976 461 982 460 988 459 994 PAGS 1007 1173 350 785 992 1075 Xl 34822 22 940 1045 370 260 GR 470 828 468 835 466 940 GR 498.2 998 458.2 1010 466 1045 468 680 397 466 457.3 469 832 1099 797 994 1109 1340 982 1162 1228 1600 NC .065 .06 ,05 .1 .3 FT 7.1 850 1460 X1 35460 25 965 1032 480 300 538 GR 472 830 470 845 468 880 467.9 910 GR 468 965 466 972 464 980 462 990 GR 459 1002 462 1005 464 1020 466 1032 GR 466 1115 466 1140 465.2 1300 466 1440 GR 469 1610 471 1750 471 1760 471 1775 BT 7.1 850 1530 X1 35540 22 980 1080 75 70 80 GR 472 868 470 880 468 905 468 950 462 460 460 468 468 459.5 465 465 940 1006 1258 993 1213 1230 1510 940 993 1105 1520 1800 980 1006 1105 1545 PROPOSED CONDITION MODEL PAGE 4 ET X1 35690 18 GR 472 860 GR 464 960 GR 466 1015 GR 466 1580 NC,066 .06 6710. 31. 1250. GR 474.2 866. GR 472.8 1016. GR 468.0 1172. ET Xl 8000. 35. GR 479.3 1990. GR 477. 2240. GR 475.9 2540. GR 474.3 2656. GR 465.3 2829. GR 468.1 3100. GR 479.4 3500. NC 0.02 ET X1 9494 BT 2 GR 489.4 GR 480.4 GR 467.9 GR 480.4 GR 480.3 GR 482.6 7.1 860 1600 965 1015 150 150 150 470 870 468 920 468 965 466 462 993 460 995 460 1005 464 466 1100 466 1188 466 1240 466 7,1 1083. 1670. 1286. 1100 750 1165 1250 1286 260 250 474. 916. 474.1 926. 472.6 1066. 472.2 1077, 468,7 1222. 468.7 1260. 469.4 1286. 467.7 1316. 466.3 1522. 466.9 1572. 466.8 1772. 468.6 1822. 250 474.2 955. 474. 966. 456.9 1093. 467.5 1122. 462.6 1257. 460.6 1266. 467.4 1322. 466.3 1372. 465.9 1622. 466.8 1572. 471.0 1872. 473.0 1922. 7.1 2693. 3202. 2817. 2848. 990. 1Q60. 1335. 478.4 2040. 478.3 2090. 477.5 2140. 477.1 2190. 476.7 2290. 476.6 2340. 476.4 2440. 476.2 2490. 476.8 2547. 474.8 2558. 474.5 2590. 474.4 2640, 472.6 2690. 470,1 2700. 472.1 2800. 472.3 2817. 463.9 2840, 472.2 2848. 471.3 2900. 469.8 3000, 468.7 3200. 469.8 3300. 471.5 3340. 474.4 3400. 4200 5900 6700 8600 6700 6700 6700 6700 6700 7.1 1268 1497 25 1268 1426 1340 1250 1430 841 496.1 891 494.3 941 488.0 991 482.8 1012 1031 483.2 1039 482,8 1060 481.8 1091 480.5 1141 1171 474.7 1191 473.7 1200 477.3 1268 466.6 1291 1306 478.1 1426 473.6 1440 474.3 1500 474.6 1600 1700 481.3 1800 483,7 1900 487.1 2000 489.2 2100 0.02 0.02 0.3 0.5 7.1 1300 1382 29 1300 1382 64 64 64 1301 481.6 480.4 1382 481.5 480.3 1000 483.8 1100 482.0 1200 481.8 1207 481.6 1301 478.8 1302 474.3 1307 473.9 1314 468.8 1325 480.4 1325 480.4 1327 467.9 1327 467.8 1356 480.4 1358 471.3 1358 472.7 1366 478.7 1382 481.6 1382 481.5 1400 481.2 1500 481.4 1700 484.3 1800 486.4 1900 492,1 2000 1300 1322 1356 1380 1600 220CT99 14:33:55 X2 NC .06 .07 X1 9590 18 GR 488,4 1000 GR 466.5 1306 GR 475.3 1700 NC .06 .075 OR 490.00 850 GR 479.78 1146 GR 478.15 1231 .05 PROPOSBD CONDITION MODEL 7.1 1300 32 32 32 1382 7.1 1268 1600 1268 1426 64 64 64 481,3 1100 473.7 1200 477.3 1268 466.6 478.1 1426 473.5 1440 474.3 1500 474.6 481.3 1800 483.7 1900 487.1 2000 489.2 200.2 1180 1273 530 510 530 482.42 1000. 482.38 1047 481.32 479.47 1180 477.01 1188 469,78 481.03 1273 481.22 1295 486.94 ET 200.2 X1 10120 18 1180 1273 10 10 10 OR 490.00 850 482.42 1000. 482.38 1047 481.32 GR 479.78 1146 479.47 1180 477.01 1188 469.78 GR 478.15 1231 481.03 1273 481.22 1295 486.94 1291 1600 2100 1070 480.43 1110 1207 468.53 1217 1348 490,83 1385 PAGE 1070 480.43 1110 1207 468.53 1217 1348 490.83 1385 220CT99 ~4:33:5S T2 T3 J2 NPROF IPLOT CI~"f OF COPPELL, TFa~ (CBENC )12/26/89 NINV IDIR STRT METRIC HVINS Q WSBL 0. 0. 0. 0. 0. 464.39 THIS RUN BXRCUTBD 220CT99 14:33:56 HBC-2 WATB~ SURFACB PROFILRS Version 4.6.2; May 1991 SECNO CWS~L Q DIFWSP BLMIN VCM SSTA BNDST TOPWID 32816.000 4t3.39 7300.00 .00 452.20 6,66 1000.00 1491.46 491.46 32816.000 464.39 7300.00 1.00 462.20 4.99 1000.00 lS03.12 S03,12 * 32916.000 * 32916.000 463.26 7300.00 ,00 452.20 7.41 1110,19 1226.61 113.93 464.22 7300.00 .97 452.20 6.65 1108.23 1228.61 117.79 33016.000 463.34 7300.00 .00 452.30 7.33 1109.99 1226.80 114.31 ~3016.000 464.29 7300.00 .94 452.20 6.60 1108.09 1228.64 118.08 33116.000 33116.000 463.74 7300.00 .00 452.50 7.31 963.01 1155.00 201.99 464.63 7300.00 .89 462.B0 6.37 949.47 1156.00 206.63 33560.000 465.23 7300.00 .00 464.10 6,56 830.10 1124.91 294.81 33660.000 466.64 7300.00 .42 464.10 6.03 831.00 1122.00 291.00 34076.000 466.69 7300.00 .00 457.00 5.72 894.37 1139.96 248.60 34076,000 466,73 7300.00 .14 487.00 8.61 889.63 113~.00 248,38 34472.000 467,S0 7300,00 .00 457.30 7.27 549.74 1103.00 553.26 34472.000 467.~1 7300.00 .02 487.30 7.77 680.08 1099.00 419.00 * 34822.000 * 34822.000 468.64 7300.00 .00 458,00 4,14 832.74 1661.55 511.67 468.81 7300.00 .17 458.00 4.00 833.1~ 1289.26 457.10 35460.000 469.50 7300.00 .00 459.00 4.72 8S3.75 1645.02 791.27 35460.000 469.60 7300.00 ,10 469.00 4.85 852.02 1460.00 607.98 36640.000 469.70 7300.00 .OO 489.90 3.86 883.76 1683.16 796.39 3~640.000 469.82 7300.00 .12 459.~0 3,84 882.31 1~30.00 64?.69 35690.000 470.01 7300.00 .00 460.00 3.76 869.89 1701.22 831.33 35690.000 470.12 7300.00 .11 460.00 3.69 869.40 1600,00 730.60 PROPOSBD CONDITION MOD~L PAGB 9 WARNING SBCNO~ 32916,000 PROFILB= WARNING S~CNO= 32916,000 PROFILB= WARNING SECNO= 33116,000 PROFILBm WARNING SECNO= 33116,000 PROFILBa · Version 4.6.2; May 1991 · RUN DATE 220CT99 TIME 12:47:31 X X X X X X X X X X X X X X X X X X 22OCT99 12:47:31 Version 4.6.2; Hay 1991 0 2 0 0 0 0 0 0 3~ i 43 42 26 53 54 4 -10 QT I 8390 NC .02 .02 .02 .3 X1 31016. 10 11Q3 1232 100 100 100 NC .0SS .055 .045 .1 .3 Xl 23116 26 950 1021 100 100 100 1140 452.2 1171.25 1205 466 1232 X1 23560 30 975 1132 380 470 444 pROPOSeD CONDITION MOD~L W/ULTXMAT8 Q'S 220CT99 12:47:31 916 990 1145 1516 797 994 1109 962 1162 1228 1600 466 467.3 469 940 1007 1173 940 1006 1258 993 1213 1230 1610 X1 36460 26 966 1032 480 300 638 Xl 35540 22 980 1080 76 70 80 GR 472 868 470 880 468 905 468 950 997 1080 1510 468 469.5 466 468 466 464 466 474. 467.5 460.8 466.3 466.8 965 1006 1240 955. 1093. 1267. 1322. 1622. Xl 36690 18 965 1015 150 150 150 GR 472 860 470 870 468 920 468 X1 6710 31 1250 1286 250 260 250 980 1006 1105 1545 986 1010 1528 966. 1122. 1266. 1372. 1672. GR GR 220CT99 466. 478. 12:47:31 1722. 1937. 466.8 1772. 468.6 1822. 471.0 1872. 473.0 1922, QT i 8710 X1 8000. 35. 2817. 2848. 990. 1060. 1335. GR 479.3 1990. 478.4 2040. 478.3 2050. 477.5 2140- 477.1 2190. GR 477. 2240. 476.7 2290. 476.6 2340. 476.4 2440. 476.2 2490. QT i 8260 X1 9430 25 1268 1426 1340 1250 1430 GR 498.8 841 496.1 891 494.3 941 488.0 991 482.8 1012 GR 483.2 1031 483.2 1039 482.8 1060 481.8 1091 480.5 1141 GR 479.5 1171 474.7 1191 473.7 1200 477.3 1268 466.6 1291 GR 466.5 1306 478.1 1426 473.6 1440 474,3 1500 474.6 1600 GR 475.3 1700 481.3 1800 483.7 1900 487.1 2000 489.2 2100 NC 0.02 0.02 0.02 0.3 X1 9494 29 1300 1382 64 64 64 BT 2 1301 481.6 480,4 1382 481.6 480.3 GR 489.4 1000 483.8 1100 482.0 1200 481.8 GR 480.4 1301 478.8 1302 474.3 1307 473.9 GR 467.9 1328 480.4 1325 480.4 1327 467.9 GR 480.4 1356 480.4 1358 471.3 1368 672.7 GR 480.3 1382 481.6 1382 481.8 1400 481.2 GR 482.6 1700 484.3 1800 486.4 1900 492.1 X2 9526 32 32 32 NC .06 .07 .05 Xl 9590 15 1268 i426 64 64 64 C=R 488.4 1000 481,3 1100 473.7 1200 477.3 GR 466.8 1306 478.1 1426 473.6 1440 476.3 GR 475.3 1700 481.3 1800 483.7 1900 487.1 X1 10120 15 1180 1273 530 510 530 GR 490,00 850 482.42 1000. 482.38 1047 481.32 GR 479.78 1146 479.47 1180 477.01 1188 469,78 GR 478.16 1231 481.03 1273 481.22 1295 486.94 1207 481.6 1300 1314 468.8 1322 1327 467.8 1356 1366 478.7 1380 GR GR 1268 466.6 1291 1500 474.6 1600 2000 489.2 2100 1070 480.43 1110 1207 468.63 1217 1348 490.83 1386 10120 1S 1180 1273 10 10 10 490.00 850 482.42 1000. 482.38 1047 481.32 1070 480.43 1110 479.78 1146 479.47 1180 477.01 1188 469.78 1207 468.53 1217 478.18 1231 481.03 1273 481.22 1296 486.94 1348 490.83 1388 HSC-2 WATER SURFACE PROFILES Version 4.6.2; May 1981 SECNO CWSBL Q ELMIN VCH SSTA 8NDST ~PWID 33016.000 463,85 8390.00 452.20 7.96 1108.97 1227.79 116.33 33116.000 464.37 8390.00 481.80 7.60 980.49 1198.00 204.81 33880.000 468.83 8390.00 484.10 6.68 828.10 1127.39 302.19 34078.000 487.10 8390.00 457.00 6.06 876.63 1141.78 285.25 34472.000 468.06 8390.00 457.30 7.06 848.01 1108.33 587.22 34822.000 469.07 8390.00 458.00 4.34 831.27 1696.89 8~0.69 35460.000 469.91 8390.00 459.00 4.78 846.63 1673.80 826.87 38840.000 470.09 8390,00 459.50 3.98 879.46 1721.38 8{1.89 38890.000 670,38 8350.00 460.00 3.86 868.01 1721.88 883.83 6710.000 470.81 8390.00 460.60 4.32 1081.19 1868.07 786.87 8000.000 473.44 8710.00 453.90 8.42 2673.27 3380.06 706.78 9430.000 477.73 8260.00 466.80 6.48 1178.43 1740.28 8~6.69 9494.000 478.89 8250.00 467.80 15.43 1302.24 1378.73 73.49 9826.000 480,49 8250.00 467.88 12.36 1300.92 1382.00 81.08 9890.000 483.66 8250.00 466.50 1.93 1868.10 1894.37 826.27 10120.000 482.83 8250.00 468,53 10.62 991.81 1309.95 318.18 10120.000 483.28 8280.00 458.53 9.~2 983.11 131{.03 320.92 PROPOSBD CONDITION MOD=L W/ ULTIMATB Q'S 22OCT99 12:47:31 33116.008 PROFILB~ I 9494.000 PROFILBa 1 9494.000 PROFILB~ 1 9494.000 PROFILB~ I PROPOSBD CONDITION MULTIPLB PROFILB MODBL * HEC-2 WATER SURFACB PROPILMS * Version 4.6.2; May 1991 * RUN DATB 220CT99 TIMB 14:58:44 * X X XXXXXXX XXXXX X X X X X X X X X XXX,vaCXX XXaC4 X X X X X X X X X X 220CT99 14:58:44 version 4.6.2; May 1991 T2 10, 50, 100, 500 YBAR MODBLS T3 CITY OF COPPBL~, CBPR4MP 10/22/99 J1 IC~RCK INQ NINV IDIR STRT 0 2 0 0 0 QT 4 4800 6400 7300 9400 NC .085 .055 .045 .1 .3 X1 32816. 17. 1157. 1183. 98. 80. 91. GR 459. 1000. 459.8 1073. 459.8 1157. 452.2 G~ 459.8 1183. 460.4 1196. 460. 1204. 459. GR 469. 1328. 460. 1373. 461. 1438. 462. NC .02 .02 .02 .3 7.1 1103 1232 X2 32916. 10 1103 1332 100 100 100 GR 466.81 1103 456.4 1124 456.2 1132 462.2 X1 33016. 10 1103 1232 100 100 100 GR 466.81 1103 456.4 1134 456.2 1132 452.2 OR 466.2 1171.26 466.2 1173.75 452.2 1173.75 482.2 1163. 452.2 1179. 1255. 458.7 1274. 1470. 463. 1486. 1140 452.2 1171.25 1205 466 1232 1140 452.2 1171.25 1205 466 1232 prom X3 GR GR 831 1122 380 470 464 837 461 982 454.1 1000 4S8 1013 468 1277 7.1 883 1135 X1 34079 19 940 1145 505 520 GR 470 822 468 845 467 880 942 967 992 1324 1445 915 990 1145 1516 PAGg 948 970 1010 1348 1490 994 1005 1100 1358 1478 940 1007 1173 22OCT99 14:58:44 350 397 786 466 ?97 466 940 992 457.3 994 457.3 1006 NC X1 34822 22 940 GR 470 828 468 GR 458.2 998 458.2 GR 459 1220 459 461 1231 461.5 1270 GR 461 1231 461.5 7.1 832 1340 468 638 467.5 462 466 466 471 X1 35540 22 980 1080 75 70 80 OR 472 868 470 880 468 905 468 GR 466 985 464 990 462 995 459.5 GR 462 1008 484 1015 466 1048 467.3 982 1162 1228 1600 910 990 1032 1440 1775 950 597 1080 462 460 460 468 468 459 466 468 472 466 469.5 466 468 993 1213 1230 1510 940 993 1105 1520 1800 NC.065 .06 6710. 31. 1250. GR 474.2 866. GR 472.8 1016. GR 468.0 1172. GR 462.3 1375, GR 466.3 1472. GR 466. 1722. GR 475. 1937, 7.1 1083. 1670. 1285. 1100 750 1165 1250 1286 250 250 250 474. 916. 474.1 926. 474.2 995. 472.6 1066. 472.2 1077. 466.9 1093. 468.7 1222. 468.7 1250. 462.6 1257. 469.4 1286. 467.7 1315. 467.4 1322. 466.3 1522. 465.9 1572. 465.9 1622. 466.8 1772. 468.6 1822. 471.0 1872. X1 8000. 35. 2817. 2848. GR 479.3 1990. 478.4 2040. GR 477. 2240. 476.7 2290. 4200 5900 6700 0,02 0.02 0.3 29 1300 1382 1301 481.6 480.4 1000 483.8 1100 1301 478.8 1302 1325 480.4 1325 1356 480.4 1358 1382 481.6 1382 1700 484.3 1800 QT 4 NC 0.02 Xl 9494 BT 2 7.1 2693. 3202. 474. 467.5 460.6 466.3 466.8 473.0 466 985 464 1010 466 1528 966. 1122. 1266. 1372. 1672. 1922. 990. 1060. 1335. 478.3 2090. 477.5 2140. 477.1 2190. 476.6 2340. 476.4 2440. 476.2 2490. 482.8 480.5 466.6 474.6 489.2 481.6 468.8 467.8 478.7 481.4 8600 7.1 1268 1497 1340 1250 1430 494.3 941 488.0 991 482.8 1069 481.8 1091 473.7 1200 477.3 1268 473.6 1440 474.3 1500 483.7 1900 487.1 2000 7.1 1300 1382 64 64 64 1382 481.6 48Q.3 482.0 1200 481.8 1207 1012 1141 1391 1600 2100 1300 1322 1356 1380 1600 PROPOSBD CONDITION MULTIPLB PROFILB MODEL 220CT99 14:58:44 NC .06 .07 X1 9590 15 1268 GR 488.4 1000 481.3 GR 466.5 1306 478.1 NC .06 .076 X1 10120 GR 490.00 890 GR 479.78 1146 GR 478.15 1231 32 32 32 7.1 1368 1600 1436 64 64 64 1100 473.7 1200 477.3 1425 473.6 1440 474.3 1800 483.7 1900 487.1 200.2 1180 1273 530 510 530 482.42 1000, 482.38 1047 481.32 479.47 1180 477.01 1188 469.78 481.03 1273 481.22 1295 486.94 200.2 1268 1500 2000 X1 10120 15 1180 GR 490.00 880 482.42 GR 479.78 1146 479.47 GR 478.15 1231 481.03 1070 1207 1348 466.6 474.6 489.2 480.43 968.53 490.83 1291 1600 2100 1110 1217 1385 1273 10 10 10 1000. 482.38 1047 681.32 1070 480.43 1110 1180 477.01 1188 469.78 1207 458.53 1217 1273 481.22 1295 486.94 1348 490.83 1385 PROPOSBD CONDITION MULTIPLE PROFILB MODBL T2 T3 0 J2 NPROF PAGB PROPOSED CONDITION MULTIPLE PROFILE MODEL T2 100 yEAR FREQUENCY FLOOD T3 CITY OF COPPELL, TFa~ (CBgNC )12/26/89 J1 ICHECK INQ NINV IDIR STRT 0 4 0 O 0 PAGE 7 PROPOSED CONDITION MULTIPL~ PROFILE MODEL T3 J2 NPROF 464.1 PAGE Version 4.6.2; May 1991 32816.000 462.31 4500.00 .00 452.20 6.10 1000.00 1474.96 474.96 32816.000 463.10 6400.00 .79 462.20 6.43 1000.00 1487.40 487.40 32816,000 463.39 7300.00 .29 462.20 6.66 1000.00 1491.46 491.46 32816.000 464.10 9400.00 .71 452.20 6.98 1000.00 1800.80 500.80 32916.000 462.32 4500.00 .00 482.20 8.11 1112.06 1224.80 110.23 32916.000 463.01 6400.00 .69 462.20 6.68 1110.67 1226.16 112.98 32916.000 463.25 7300.00 .24 462.20 7.41 1110.19 1226.61 113.93 33916.000 453.81 9400.00 .66 462.20 8.98 1109.08 1227.71 116.16 33016.000 462.36 4500.00 .00 452.20 8.08 1111.97 1224,88 110.41 33016.000 463.09 6400.00 .72 482.20 6.62 1110.81 1226.30 113.29 33016.000 463.34 7300.00 .26 453.20 7.33 1109.99 1226.80 114.31 33016.000 463.96 9400.00 .62 482.20 8.81 1108.78 1228.01 116.76 33116.000 462.49 4500.00 .00 452.50 5.70 988.06 1155.00 196,95 33116.000 463,38 6400.00 .90 482,80 6,82 984.46 1155.00 200,54 33116.000 463.74 7300.00 .36 452.50 7.31 983.01 1188.00 201,99 33116.000 464.64 9400.00 .89 452.50 8.19 949.45 1188.00 205.55 33560.000 463.74 4800.00 .00 454.10 6.87 837.77 1118.98 281.21 33560.000 464.79 6400.00 1.05 454.10 6.36 833.07 1123.16 290.08 33550.000 466.33 7300.00 .44 454.10 6.56 830.10 1124.91 294.81 33860.000 466.24 9400.00 1.01 454.10 6.88 821.68 1128.91 307.24 34078.000 468.16 4500.00 .00 457.00 4.56 936.13 1134.84 198,71 34076.000 466.17 6400.00 1.01 467,00 8.39 909.15 1138.46 229.30 34075.000 466.59 7300.00 .42 457.00 8.72 894.37 1139.96 246.60 34076.000 467.51 9400.00 .92 487.00 6.36 862.09 1143.26 281.21 34472.000 468.84 4500.00 .00 457.30 7.45 554.89 1096,34 381.91 34472,000 467.01 6400.00 1.17 497.30 7.45 681.26 1101.08 849.80 34472.000 467.50 7300.00 .49 457.30 7.37 649.74 1103.00 583.26 220CT99 14:88:44 PROPOSED CONDITION MULTIPLB PROPILB MODBL 34822.000 467.34 4800.00 .00 458.00 3.45 869.78 1283.35 413.57 34822.000 468.29 6400.00 .96 4~8.00 3.93 833.99 1633.08 478.17 34822.000 468.64 7300.00 .35 468.00 4.14 832.74 1661.65 611.67 34822.000 469.46 9400.00 .81 458.00 4,47 829.90 1721.83 683.58 * 36460.000 468.25 4600.00 .00 459.00 4.76 876.71 1842,08 666.37 36640.000 468.53 4600.00 ,00 489.60 3.69 898.42 1581.84 683.42 36640.000 469.36 6400.00 .83 459.50 3.77 888.00 1660.12 762.12 35640.000 469.70 7300.00 .34 459.50 3,86 883.76 1683.16 799.39 35640.000 470.44 9400.00 .74 469.60 4.02 877.34 1756.71 878.37 36690.000 468.88 4600.00 .00 460.00 3.47 897.68 1639.17 741.51 36690.000 469.89 6400.00 .78 460.00 3.67 877.87 1682.69 804.82 35690.000 470.01 7300.00 ,33 460.00 3.76 869.89 1701.22 831.33 38690.000 470.73 9400.00 .72 460.00 3.94 866.31 1740.69 874.28 8710.000 469.38 4500.00 .00 460.60 3.92 1086.53 1838.16 7~2.17 6710.000 470.13 6400.00 .76 460.60 4.12 1083.36 1863.87 770.62 6710.000 470.44 7300.00 ,32 460.60 4.22 1082.30 1860.43 778.13 6710.000 471.14 9400.00 .69 460.60 4.40 1080.21 1876.44 796.23 8000.000 472.16 4800.00 .00 463.90 4.59 2691.77 3363.60 646.98 8000.000 472.80 6400.00 .64 463.90 4.98 2685.97 3366.93 680.96 8000.000 473.07 7300.00 .28 463.90 8.13 2680.48 3372.60 692.13 8000,000 473.67 9400,00 ,59 463.90 6.44 2668.71 3384.79 716,08 9430.000 476.11 4200,00 .00 466.60 4.63 1188.09 1713.62 476.97 9430.000 47~.89 5900.00 .78 466.50 5.01 1181.86 1726,66 519.91 9430.000 477.31 6700.00 .31 466.50 5.16 1180.66 1731.78 537.26 9430.000 477.86 8600.00 .64 466.50 5.48 1177.88 1742.47 661.19 9494.000 476.49 4200.00 .00 467.80 12.97 1306.68 1372.62 62.84 9494.000 476.90 8900.00 1.41 467.80 14.20 1304.11 1375.80 67.69 9494.000 477.50 6700.00 ,60 467.80 14.66 1303,44 1377.30 69.76 9494.000 478.84 8600.00 1.34 467.80 16.63 1301.97 1380.18 74.31 9626.000 477.03 4200.00 .00 467.80 9.91 1303.98 1376.08 68.10 9526.000 478.72 6900.00 1.69 467.80 10,84 1302.09 1380.02 73.93 9526.000 479.41 6700.00 .69 467.80 11.24 1301.62 1380,89 78.27 9526.000 480.58 8600,00 1.14 467.80 12.88 1300.87 1382,00 81.13 9590.000 479.00 4200,00 .00 466.50 2.08 1130.23 1761.71 631.49 9590.000 481.08 6900.00 2.07 466.60 1.99 1102.82 1796.42 693.60 9590.000 481.98 6700,00 .87 466.60 1.96 1090.77 1827.31 736.64 9690.000 483.89 8600.00 1.94 466.60 1.93 1063.48 1906,88 842.20 PAGR 14:58:44 SBCNO CWSEL Q DIFWSP BLMIN VCH SSTA ENDST TOPWID 10120.000 480.07 4200.00 .00 468.83 11.20 1129.75 1259.08 129.30 10120.000 481.58 5900.00 1.51 468.83 10.51 1064.32 1298.35 234.03 10120.000 481.85 6700.00 .27 468.83 11.09 1088.43 1300.87 242.44 10120.000 483.32 8600.00 1.47 468.83 8.81 982.17 1314.47 332.30 10120.000 481.37 4200.00 .00 468.$3 8.17 1072.60 1298.39 222.75 10120.000 482.27 5900.00 1.00 468.53 8.77 1049.48 1304.70 288.25 10120.000 482.68 6700.00 ,41 468.S3 8.97 994.90 1308.81 313.61 10120.000 483.87 8600.00 .89 468.~3 9.23 977.07 1316.86 339.75 pROPOSBD CONDITION MULTIPLR PROFILB MODBL WA~,NING SRCNO= 32916.000 ~ROFILB= W~ING SBCNO= 32916.000 PROFI~B= W~J~NING S~CNO= 32916.000 PROPILB= WARNING SBCNO= 33116.000 PROPIER= W~RNING SBCNO= 33116.000 PROFILB= W~RNING SBCNO= 34822.000 PROFILBm W~ING SBCNO= 34822.000 PROFILe= W2~RNING SBCNO~ 34822.000 PROFILB= 220CT99 14:58:44 WARNING SBCN0a 10120.000 gITY ~ ~LL, [EXAS ( · -i7 EXISTING' 100 YEAR t P~DI:;DSIE'D 10'0 Y"'~AR · / , ~ I I ! I 48a EXISTING 100 YEAR3/ PROPOSED 100 YEAR # \ ! .# 47O- ~,-PI~DP. nSE]] 100 YEAR 480 ~EXISTIN~ 100 YEAR ' ' ..... ~ PRDPDSED 100 YEAF~ ~\ 90O ':I] IOOYEAR' -C'EXISTING 100 YEAR 465 PRDPDSEI) CDNI]ITIDN WATER SURFACE PRDFILES CVSEL 4 641 'Citt111° \ Cross FFL ell °°11 °°eddnPwdl aSa: Yei nc Sectio td°:i nt3ai w°1PFIn°°aR1r di 6e vi -C1 es rti ft: een k • waliE .V/s, \ ..., x HEFFIELD T , _ i 1 .-.._`--.-- I i... cD a I ,,,,,,,„1„,,,,4,.... / 0 . ) 1 4 (:) \ 0144 4 imill r 1 'Ilmoi 1 W' ,.... -- %VA ,- 1 ' 151441111r ''''... ‘ki – 1'4 MORRISON HYDROLOGY ENGINEERING, INC. Wf ----'-----.„- *"%%.4%.-----...„;ILY 'I ..%-- i ' A A*, A--.*'' c-) -,-. -,- N, k. .*".:,,,, ' '''' 8 . MOULD ANIAMODAIL Alin MIN NIE/MIA WA: ( 4* -0111 1 1 WV 11,4-181111 ,,,:,.....,.. ‘r 1 a7, %t irtkz,0 .. 4 li ;1 4% ') "-- ,, . 15 5 \ "; 44 7 /AV* ';'.- s. , . _ 1 k/fai. 70.8 x i 411 N. / ' /411 \ 'I N . 4174-4 • `1. ‘..\\:\ K 111111MI 1 > . N.. 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XX ~( X X X X X X X X yac(xxa(/ XXXX x X X X X X X X X x X X ~ X_X.XXX ~XISTING CONDITION STO~AGB MODBL 180CT99 12:49:29 PAGE i Version 4.6.2; MaV 1991 T2 T3 J1 ICHBCK 0 38 I 43 7 QT 9 4500 6400 NC .02 .02 .02 X1 33016. 10 1103 X5 4 0 0 GR 466.81 1103 456.4 GR 466.2 1171.29 466,2 7300 9400 7300 7300 7300 7300 7300 1232 100 100 100 NC .05S .0SS .045 .1 .3 Xl 33116 35 960 1036 100 100 100 XS 4 0 0 463.96 Xl 33560 33 978 1030 380 470 444 X5 4 0 0 467.06 GR 470 790 469 832 494 837 463 840 462 845 GR 462 940 462 975 461 982 460 988 4S9 994 12:49:29 BXISTING CONDITION STORAGE MODEL X1 34075 X5 4 GR 470 GR 460 GR 460 GR 467 GR 469 GR 464 GR 466 27 985 1015 460 350 397 0 0 4~8.94 542 466.8 666 465.8 786 466 986 460 990 468 992 467.3 1008 460 1011 464 1013 464 X1 34472 GR 470 GR 465 GR 468 GR 465 GR 467 GR 467 Xl 34822 26 940 1046 XS 4 0 0 469.18 GR 470 828 468 836 GR 438.2 998 458.2 1010 GR 469 1220 469 1222 GR 465 1248 466 1320 915 990 1168 1237 1272 1340 797 994 1095 1268 1324 466 457.3 464 468 466 940 1007 1195 1260 1275 1380 PAGE 940 1006 1226 1272 1419 370 260 350 466 940 464 982 462 993 466 1046 466 1162 460 1213 458 1224 468 1228 460 1230 180CT99 12:69:29 PAGE 3 HEC-2 WATER SURFACE PROFILES Version 4.6.2; May 1991 SECNO CWSBL Q VOL , 33016.000 463.34 7300.00 · 33116.000 463.96 7300.00 2.2S · 33560.000 467.06 7300.00 15.02 · 34075.000 468.31 7300.00 · 34472.000 468.94 7300.00 62.66 · 34822.000 469.18 7300.00 180CT99 12:49:29 ~XISTING CONDITION STOEAGB MODBL NOTE SBCN0~ 33016.000 Version 4.6.2; Say 1991 PROPOSED CONDITION STORAGB MODBL X X XXXXXXX XXXXX X X X X X X X X x XXXXXXX X.v, XX X X X X X X X X X X X x XXXXX. XX XF, XXX XXXXX Version 4.6.2; MaV 1991 T2 T3 J1 ICHHCK 0 J2 NPROP VOLUMH 38 i 43 7 -10 -10 QT 9 4500 6400 7300 9400 7300 7300 7300 7300 7300 NC .02 .02 .02 .3 .6 X1 33016. 10 1103 1232 100 100 100 XS 4 0 0 463.34 GR 466.81 1103 456.4 1124 456.2 1132 452.2 1140 492,2 1171.25 GR 466.2 1171.25 466.2 1173,7~ 452.2 1173,79 492.2 1209 466 1232 NC .066 .096 .049 .1 X1 33116 26 960 1021 100 100 100 X5 4 0 0 463.96 GR 469 913 468 927 467 93S 466 GR 463 966 462 960 461 963 460 942 466 948 967 469 970 992 462.S 1010 1324 464 1348 1445 467 1490 X1 33560 30 975 1132 380 470 444 X5 4 0 0 467.06 GR 470 790 466 832 464 837 463 840 462 845 GR 462 940 462 975 461 982 460 988 459 994 PROPOSBD CONDITION STORAGB MODBL NC .065 .055 .04 .1 X1 34075 19 940 1145 XS 4 0 0 468.31 X1 34473 17 985 1109 460 350 397 NC .055 .043 .045 .1 .3 X1 34822 22 940 1045 370 260 350 XS 4 0 0 469.18 797 994 1109 982 1162 1228 1600 462 460 460 468 1007 1173 940 1006 1258 993 1213 1230 1610 220CT99 12:83:89 PROPOSBD CONDITION STORAGR MODBL PAGB 3 Version 4.8.3; May 1991 SBCNO CWSBL Q VOL 33016.000 463,34 7300.00 .00 33116.000 463.96 7300.00 3.87 33960.000 487.06 7300.00 25,70 34078.000 468.31 7300.00 47.37 34472.000 468.94 7300.00 67.14 ONE X - =i ='-' "~' ZONE X :I "'-~:, ..... ZONE X 197 464 ZONE X C{)ppeIlttone_ AREA COLHN1 ZONE x BOLINDARY MAP LEGEND Revised 100 Yeor Floodplclin ~M 196 ZONE X ZONE X 2! ~ J i ) ZONE FIRM FLOOD INSURANCE RATE MAP and STREET INDEX CIIT OF COPPEI,I., TEXAS I)AI LA5 Am/DEI{I ()N (I ttIR TI TO LOMR JAH 2 5 log COMMUNITYPAN[L NUMB[R 480110 0010 M~P REVISED APRIL 15, 1994 ' MII',,IYARD Oi ZO ~E AE 'x,_~ (---, - OL LOW [_ANE - %% . RM"1'97 -/)~ZO'~NE X WIt LOW 0 463 ZONE I FEDERAL EMERGENCY MANAGEMENT AGENCY I O.M.B No. 3067-0148 REVISION REQUESTER AND COMMUNITY OFFICIAL Expires Apdl 30, 2001 ' Pub~icrep~rtingburdenf~rthisf~rmisestimatedt~average2.13h~ursperresp~nse~Theburdenestimateindudesthe '~me for reviewing instructions, searching existing data sources, gathering and maintaining fie needed data, and .;ompleting and reviewing the form. Send comments regarding the accuracy of the burden estimate and any suggestions -- for reducing this burden to: Information Collections Management, Federal Emergency Management Agency, 500 C Street, S.W., Washington DC 20472; and to the Off'~ce of Management and Budget, Paperwork Reduction Project (3067- 0148), Washington, DC 20503. ,-- You are not required to roepond to this collection Of Iof~maUon unless I valid OMB Cootml Number is displayed in the upper Hght comer Of 1. REQUESTED RESPONSE FROM FEMA This request is for a: [] CLOMR A letter from FEMA commenting on whether a proposed project, if built as proposed, would justify a map revision, or proposed hydrology changes (See 44 CFR Ch. 1, Parts 60,65 & 72). [] [] LOMR A letter from FEMA officially revising the current NFIP map to show the changes to floodplains, floodway or flood elevations. LOMRs typically decrease flood hazards. (See 44 CFR Ch. 1 Parts 60 & 65.) 2. OVERVIEW 1. The basis for this revision request is (are): (check all that apply) [] Physical Change [] Improved Methodology/Data [] Other Describe: Note: A photngmph is not required, but is veq hdpful during review. [] Floodway Revision 2. Flooding Source: Cottonwood Branch 3. Project Name/Identifier: CODOetl Indeoendent School District 4. FEMA zone designations affected: AE (example: A, AH, AO, A1-A30, A99, AE, V, V1-V30, VE, B, C, D, X) 5. The NFIP map panel(s) affected for all impacted communities is (am): FJc 480301 K//, City TX 480301 480287 Hm't~ County TX 48201C 480170 COPPELL TX 480170 01/25/199~ 6. The area Of revision encompasses the following types of flooding and structures. Check all that apply. Tvoes Of Floodino Structurq~ [] Rive~ine [] Channdization [] Coastal [] Levee/Floodwall [] Alluvial fan [] Bddge/Culved [] Shallow Flooding (e.g. Zones AO and AH) [] Dam [] Lakes ~ Rn [] Other (des.iba) [] Other (desaiba) PLEASE REFER TO THE INSTRUCTIONS FOR THE APPROPRIATE MAILING ADDRESS FEMAFOn'n81-89 Revtsionland~Off~islFotm MT-2 Form I Page1 of 2 4. ENCROACHMENT INFORMATION i 1. 1Does the State have jurisdiction over the floodway or its adoption by communities bartidpating in the NFIP? [] Yes [] No If Yes, attach a copy of a letter noUf~ng ~e appropriate State agency of the floodway revision and documentoUon of ~e approval of the revised floodway by the appropriate State agency. 2. Does the development in the floodway cause the 1% annual chance (base) elevation to increase at any location by more than 0.000 feet? [] Yes [] No [] N/A , Does the cumulative effect of all devdopment that has occurred sinco the effective SFHA was originally identified cause the base flood elevation to increase at any location by more then one foot (or other increase limit if community or state has adopted more stringent cfiteda - even if a floodway has not been delineated by FEMA)? [] Yes [] No If ~e answer to either items is Yes, please attach documentaUon that all requirements of Section 65.12 of ~e NRP regulaUons have been met, regarding evaluaUon of mitemaUves, noUce to Individual legal property owners, concurrence of CEO, and certification that no insurehie structures are intpectsd. 5. MAINTENANCE RESPONSIBILITY The community is willing to assume responsibility for [] performing [] overseeing compliance Mth the maintenanco and operation plans of the DEVELOPMENT (Name) flood control structure. If not performed promptly by an owner other than the community, the community will provide the necessary sendices without cost to the Federal government. Operelkm and maintenance plan~ are attached. D Yse [] No [] N/A 6. REVIEW FEE The review fee for the appropriate request category has been included. [] Yes Fee amount: $3.400.00 OR This request is based on a fedsally sponsored flood-control project where 50 percent or more of the project's co~t is fedsally sponsored, or the request is based on detailed hydrologic and hydraulic studies conducted by Federal, State, or local agencies to replace approximate studies conducted by FEMA and shown on the effective FIRM; thus the project is fee exempt. j"l Yes Please lee Instructions for Fee Amounte 7. SIGNATURE N~e:l underBlandUtatmy signaNre lndlc~me thatall lnfonnaMon N0~8:Stgnatum lndlclilthltthecommunltyundemtlndB, from the ' Signature ef Revision Reqtastm' ' ~mof Community Official RonldW,~P.E. Printad Name and Tl~e of Revision Requester I..hdreloov Enoineedno. Inc. Compmy~ CERTIFICATION BY REGI ESSIONAL ENGINEER AND/OR LAND SURVEYOR Signature Ronald W. Moffis~. P.E. Printed Name and Tie of Re~i~.)rl Requester RegistrNo. 36651 Expires (Date) 3/31/2000 5tale TX Type of Licenserr_xpetlse: Civil Encilneer Check which forms hans been included with this request d [] HydreuliC(4) [] MappMg (5) [] Chanm,;;,g,'Jon (6) [] Bddg~Cuhrert (7') rl Levem/Flood~l (8) [] comm (s) Reaulred if ...... neworre~seddiK:ha~ee nsverrevisedwaler-su~face~ channel is modified additien/reVaien d bddge'cuNert eddton/revisiondks~se61oodwell [] Coastal Structures(10) iddion/revteiondcoeltalNructure [] Dee (11) addltim/revision of dam [] Alluvial Fan (12) sb'uctures ;xop~sed On allu~al fan FEDERAL EMERGENCY MANAGEMENT AGENCY I O.M.B No. 3067-0148 RIVERINE HYDRAULIC ANALYSIS Expires Apdl 30, 2001 PUBLIC BURDEN DISCLOSURE NOTICE Public reporting burden for this form is estimated to average 2.25 hours per response. The burden estimate includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the needed data, and COmpleting and reviewing be form. Send COmments regarding the accuracy of the burden estimate and any suggestions for redudng this burden to: Information Collections Management, Federal Emergency Management Agency, 500 C Street, S.W., Washington DC 20472; and to the Office of Management and BUdget, Paperwork Reduction Project (3067-0148), Washington, DC 20503. You am not required to respond to this COllection of Information unis~s a valid OMB COntrol Number is displayed in the upper right corner of this fonn. Note: Fill out one form for each flooding source Mudled Community Name: CoDDell. Texas Flooding Source: CottoonwCOd Branch Project Name/Identifier: CooDell I.S.D. 1. REACH TO BE REVISED Describe the limits of the revisien OR submit a COpy of the FIRM with the revision araa clearly highligMed. Copy of FIRM(s) attached depicting area of the revision (highlighted, or circled)? [] Yes Downstream Limit: -~116 Upstream Limit: 34822 2. MODELS SUBMITtED Ra~ulremenm: for areas which have detailed flooding: Full input and output listings along with files on diskette for each of the models listed below (items 1-4) and a summan/of the Source of input parameters used in the models must be provided. The summan/must include a description of any changes made from model to model (e.g., Duplicate Effective model to Corrected Effective model). At a minimum, the Duplicate Effective (item 1) and the Revised or Post-Project Conditions (item 4) models must be submitted. See instructions for directions on when other modeis may be required. for emil which do not have detailed floodIn.: Only the lO0-year (Base) flood profile is required. A hydraulic mUdel is not required for areas Which do not have detailed flooding; however, BFEs may not be added to the revised FIRM. If a hydraulic model is developed for the area, items 3 and 4 descllbed below must be submitted. If hydraulic models are not developed, hydraulic analyses (including all calculations) for existing Or pre-project COnditions and revised or post-project condffions must ha submitted. 1. DUDIInstt Effective Model L.J Natural File Name b(] Floodway File Name CBENC Copies of the hydraulic analysis used in the effective FIS, referred to as the effective models (10-, 50-, 100-. and 500-year multi- profile runs and the floodway run) must be obtained and then reproduced on the requeste's equipment to produce the Duplicate Effective model. This is required to assure that the effective models input data has been transferred correcUy to the requester's equipment and to assure that the revised data will be integrated into the effective data to provide a continuous FIS model upstream and downstream of the revised reach. 2, Corrected Effectlye Model I"] Natural File Name __r-'l Roodway File Name The Corrected Effective model is the medal that corrects any errors that occur in the Duplicate Effective mUdel, adds any additional cross sections to the DupliCate Effective model, or inCOrporates more detailed topographic information then that used in the currently effective model. The Correctly Effective model must not reflect any man-made physical changes since the date of the effective model. An error could be a technical error in the modeling procedures, or any construction in the floodplain that occurred prior to the date of the effective model but was not inCOrporated into the effective model. 3. ExlsUn~l or Pra-Proiect CondlUons Model [] Natural File Name CBER3MP [] Roodway File Name CBER3 The Duplicate Effective mUdei or Corrective Effective model is modffied to produce the Existing or Pre-Project Conditions model to reflect any modifications that have occurred within the floodplain since the date of the Effective model but prior to the construction of the project for Which the revision is being requested. if no modification has occurred since the date of the effective model, then this model would be identical to the Corrected Effective model or Duplicate Effective model 4. Revised or Post-Project Condlttona Mndst [] Natural File Name CBPR~MP [] Floodway File Name CBPR3 The Existing or Pre-Project Conditions model (er Duplicate Effective model or Corrected Effective model, as aepropdate) is revised to reflect revised or post-project COnditions. This model must incorporate any physical changas to the floodplain since the effective model was produced as well as the effects of the project. When the request is for the proposed project this model must reflect proposed conditions. .- 5. Other - Please attach a sheet describing all other models submitted along with the file names. [] Natural i'1 Floodway I PLEASE REFER TO THE INSTRUCTIONS FOR THE APPROPRIATE MAILING ADDRESS 3. STARTING WATER-SURFACE ELEVATIONS IExplain how they were determined. Explanation Attached? NOTE: If the effective study is an approximate study, the slope/area method is recommended. '1 [] Yea [] No For detailed analysis studies, using a known water-surface elevation ~ recommended. 4. RESULTS (from the model used to revise the 100-year water surface elevations) If the results indicate any of the fellowing, attach an explanation - to this form, or to the hydraulic model pdntoet- as to the reasonableness of the situation. [] Supercritical depth [] Cdtical Depth [] Drawdowns [] Negative Floodway Surcharges [] Floodway Surcharges Greater Than Maximum Allowed by Community/State [] Water surface elevations higher than the end points of cross sections. [] Floodway discharge is different than the Natural 100-year (base) flood discharge. [] Project causes 100-year floodplain or floodway elevations to increase (state if increases are located off the reduestefs property) ExplanaUon attached with Form [] ExplanaUon provided on attached pdntout [] If Hydraulic model used is HEC-2, has it been checked with FEMA'S CHECK-2 computer program? [] Yea (see instrucUons for informaUon on how to obtain CHECK-2) 5. REVISED FIRNUFBFM AND FLOOD PROFILES 1. Profile TranatUon a. 100-Year Water-Surface Elevations - indicate the difference in water surface elevations where the project 100-year elevations tie into the existing 100-year water surface elevations at each end of the project. Downstream End 33016 within 0 (feet) Cross-Section # Upstream End 8000 within ~ (feet) Cross-Sectfon# b. Floodway Elevations - indicate the difference in water surface elevations where the project floodway elevations tie into the existing floodway water surface elevations at each end of the project. Downstream End 33016 within 0 (feet) Cross-Section # Upstream End 9494 within 0 (feet) Cross-Sect/on# [] No 2. Profile Checklist (check box if informaUon has been provided on profile) Downstream End 33016 within (} (feet) Cross-Section # Upstream End 9{.94 within 0 (feet) Cross-Section # FEMA Form 81-89C The following information (unless in parentheses) must he included at the same scale as the existing profiles for this project: [] Stream Name [] Community Name [] Confiuences labeled [] Channel Stationing [] HorizontalNertical Scales indicated [] Road Crossings [] Labeled [] Corporate Umits labeled [] Streambed profiled [] 100-year elevs profiled* [] Low Chord Elevations *All recurrence intervals in the effective study must also he profiled. Floeday Data Table Attach a Floodway Data Table for each cross section listed in the pubfished Floodway Data table in the FIS report. Floodway Data Table Attached [] Yes [] NOt Required [] Study limits labeled [] Cross Sections labeled [] Top of Road Elevations Rkwine Hydmullc Artemis Farm MT-2Forn4Page2of2 C. Floodway widths - indicate the difference in floodway widths where the project floodway widffis tie into the existing floodway width at each end of the project. FEDERAL EMERGENCY MANAGEMENT AGENCY I O.M.B No. 3067-0148 RIVERINE I COASTAL MAPPING Expires Apdl 30, 2001 PUBLIC BURDEN DISCLOSURE NOTICE oublic reporting burden for this form is estimated to average 1.5 hours per response. The burden estimate includes the dme for reviewing instructions, searching existing data sources, gathering and maintaining the needed data, and completing and reviewing the form. Send comments regarding the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Federal Emergency Management Agency, 500 C Street, S.W., Washington DC 20472; and to the Office of Management and Budget, Paperwork Reduction Project (3067- 0148), Washington, DC 20503. You ere not rBquired to respond to this colisctJon Of Information unless a valid OMB Control Number Is dis;dayed In ~e uplar dgM corner Of NON: Fill out one form for each flooding source studied Community Name: COPPELL. TEXAS Flooding Source: CO'R'ONVVOOD BRANCH Project Name/Identifier: COPPELL I.S.D. This is a [] Manual [] Digital submission. D/gig map submissions may be used to update digital FIRMs (DFIRMs). For updating DFIRMs, these submissions must be coordinated with FEMA Headquarters as far in advance as possible. t. MAPPING CHANGES 1. A topographic workmap must be submitted showing the following information (check N/A when not applicable): a. Revised approximate 100-year floodplain boundaries (Zone A) ............................................................[] Yes [] No [] N/A b. Revised detailed 100- and 500-year floodplain boundaries .................................................................[] Yes [] No [] N/A c. Revised floodway boundaries ..............................................................................................................[] Yes[] No[] N/A d. Location and alignment Of all cross sections with stationing control indicated ..................................... [] Yes [] No [] N/A e. Stream alignments, road alignments and dam alignments ..................................................................[] Yes [] No [] N/A f. Current community boundaries ..........................................................................................................[] Yes[] No[] N/A g. Effective 100- year floodplain and floodway boundaries from FIRM/FBFM reduced or enlargedtothescaieofthetopogmphicworkmap ............................................................................... []Yes []No []N/A h. Tie-ins between the effective and revised l00-, 500-year and floodway boundades .............................. []Yes []No i'[N/A i. The requestof's property boundaries and community easements ......................................................... [] Yes [] No [] N/A j. The signed ceffi~cation Of a registered professional engineer ..............................................................[] Yes [] No [] NIA k. Location and descdption of refemnca marks .......................................................................................[]Yes[]No []N/A I. Vertical datum (example: NGVD, NAVD) ............................................................................................[] Yes[] No [] N/A m. Coastal zone designations tie into adjacent areas not being revised ....................................................[] Yes [] No [] NIA n. Location and alignment Of all coastal ransects used to revise the coastal analyze .............................. [] Yes [] No [] N/A o. V-zono has been delineated to extend landward to the heel of the pdmary frontai dune ........................ []Yes []No []N/A ff any items am marked No or N/A please attach an explanation. 2. What is the source and data of the updated topographic information (example: orthophoto maps, July 1985; filed survey, May 1979, beach profile, June 1987 etc.)? Survey information and a 1' toDo mao 3. What is the scale and contour interval of the following workmaps? Effective FIS Revision Request Scale 1"=1000' Contour Interval 10' Scale 1"=-~Q{7 Contour Interval NOTE: Revised topographic information must be of equal or greater detai than effective. 4. Attach an annotated FIRM/FBFM at the scale of the effective FIRM/FBFM showing the revised 100- and 500-yser floodplain and the floodway boundaries and how they tie into those shown on the effective FIRM/FBFM downstream and upstream of the revisions or adjacent to the area of revision for coastal studies. FIRM/FBFM attached? [] Yea [] No PLEASE REFER TO THE INSTRUCTIONS FOR THE APPROPRIATE MAILING ADDRESS FEMAFonn81-89D Riverine/~t,4r~ingFceTn MT-2FonnSPagel or2 I1. 2. EARTH FILL PLACEMENT The fill is: [] Existing [] Proposed Has fill been/will be placed in the regulatory floodway? If Yes, please attach completed Rivefine Hydraulic Analysis Form (Form 4). [] Ye~ [] No Has ~l been/will be placed in floodway fringe (area between the floodway and lO0.year floodplain boundaries)? [] Yes [] No If Yes, then complete A, B, C, and D bdow, Are fill slopes for granular materials steeper than one vertical on one-and-one-haft horizontal? [] Yes [] No if Yes, justffi/steeper slopes Is adequate sosion protection provided for fill slopes exposed to moving flood waters? (S/opes exposed to/'/owe with velocities of up to 5 feet per second (fps) durfng the lO0.year ~ood must, at a minkhum, be protected by a cover of grass, vines, weeds, or sirtier vegeteUon; slopes exposed to flows with velocities greater than 5 fps during the fO0-year flood must, at a minimum, be protected by Stone or rock riprap.) [] Yes [] No If No, describe erosion protection provided Has all fill placed in revised 100-year floodplain been compacted to 95 percent of the mmdmum density obtainable with the Standard Proctor Test Method or acceptable equivalent method? [] Yes [] No d. Can structures conceivably be constructed on the fill at any time in the future? [] Yes [] No If Yes, attach cerU~caUon Of fill compaction (ibm 3c. above) by the community'e NFIP permit official, s registered professional engineer, or an accredited soils engineer in accordance with Subparagraph 65.5(a)(6) Of the NFIP regulsUons. Fill cerUficeUon attached [] Yes [] No Has fill been/will be placed in a V zone? [] Yes [] No if Yes, is the fill protected from erosion by a flood control structure such as a revstment or seawall? [] Yes [] No If Yes, attach the Coastal Structures Form (Form 10). FEMA Form 81-89D RNerine/Coastel Mapping Form MT-2 Form 5 Page 2 d 2