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ST0502A-SY130322Conditional Letter of Map Revision (CLOMR)for Sandy Lake Road and Freeport Parkwayat Cottonwood Branch engineerssurveyorslandscape architects Registered by the Texas Board of Professional Engineers; No. F-230 Registered by the Texas Board of Professional Surveyors No. 100116-00 For t Wor thFort Worth DentonDenton DallasDallas ShermanSherman March 2013 Fort Worth110 Denton1517 Centr R March 22, Mr. Ken G Director of City of Co 255 Parkw Coppell, T RE: CL Cit TN Dear Mr. G Please find Branch, loc reflect floo and Freep is currently Included w exhibits, a be submitt remittance summarize proposed Please not reflect eva City ordin bridge cro based on improveme elevations. If upon you Sincerely, tnp teague nall & Niraj A. 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Th ultimate floo ny time. 214.461.9867 903.870.1089 engineers surveyors landscape arch www.tnpinc.com od to ad m ng to to to he ts) by ed rd he od itects m TOC‐i    Report Contents  MT‐2 FORMS    REPORT  INTRODUCTION ........................................................................................ 1  LOCATION AND BACKGROUND ................................................................ 1  HYDROLOGIC MODELING ......................................................................... 1  Table 1:  Cottonwood Branch Flow Summary ....................................................................................... 1  HYDRAULIC MODELING ............................................................................ 2  EFFECTIVE MODEL ........................................................................................................................ 2  FEMA Data Request ................................................................................................................ 2  Effective Floodplain Model ..................................................................................................... 2  Effective Floodway Model ...................................................................................................... 2  DUPLICATE EFFECTIVE MODELS .................................................................................................... 2  Duplicate Effective Floodplain ................................................................................................ 2  Duplicate Effective Floodway ................................................................................................. 3  REVISED EXISTING MODEL ........................................................................................................... 3  Revised Existing Floodplain .................................................................................................... 3  Table 2:  Effective and Revised Existing Hydraulic Parameter Comparison .......................................... 4  POST‐PROJECT MODEL ................................................................................................................. 4  Proposed Improvements ........................................................................................................ 4  Post‐Project Conditions Floodplain ........................................................................................ 5  Table 3:  100‐Year WSEL Comparison (FIS Flows).................................................................................. 6  Post‐Project Conditions Floodway ......................................................................................... 6  ULTIMATE CONDITIONS CONSIDERATIONS .................................................................................. 7  Table 4:  100‐Year WSEL Comparison (Ultimate Flows) ........................................................................ 7  CONCLUSION ............................................................................................ 8    EXHIBITS   Exhibit 1 – Location Map   Exhibit 2A – Topographic Workmap ‐ Sandy Lake Rd. – FIS Discharges   Exhibit 2B – Topographic Workmap ‐ Sandy Lake Rd. – Ultimate Discharges   Exhibit 3A – Topographic Workmap – Freeport Pkwy. – FIS Discharges   Exhibit 3B – Topographic Workmap – Freeport Pkwy. – Ultimate Discharges   Exhibit 4 – Annotated FIRM   Exhibit 5 – Proposed Construction Plans TOC‐ii    APPENDIX A:  EFFECTIVE DATA     MAPMOD FIRM (Preliminary)   FIS Peak Discharge Summary   Flood Profiles (Cottonwood Branch and Denton Creek)   Floodway Data    APPENDIX B:  MODELING DATA     Effective Floodplain Output (not provided by FEMA)   Effective Floodway Output     Duplicate Effective Floodplain Output   Duplicate Effective Floodway     Revised Existing Floodplain Output (FIS Discharges)     Post‐Project Floodplain Output (FIS Discharges)   Post‐Project Floodway Output (FIS Discharges)     Revised Existing Floodplain Output (Ultimate Discharges)   Post‐Project Floodplain Output (Ultimate Discharges)      APPENDIX C:  DIGITAL DATA (CD placed on inside back cover)     Report and Exhibits PDF   Digital Models (HEC‐2 & HEC‐RAS)   Model Input and Reports   ESRI Shapefiles        FEMA Form 086-0-27, (2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 1 of 3 U.S. DEPARTMENT OF HOMELAND SECURITY FEDERAL EMERGENCY MANAGEMENT AGENCY OVERVIEW & CONCURRENCE FORM O.M.B No. 1660-0016 Expires February 28, 2014 PAPERWORK BURDEN DISCLOSURE NOTICE Public reporting burden for this form is estimated to average 1 hours per response. The burden estimate includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required to respond to this collection of information unless it displays a valid OMB control number. Send comments regarding the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Department of Homeland Security, Federal Emergency Management Agency, 1800 South Bell Street, Arlington, VA 20958-3005, Paperwork Reduction Project (1660-0016). Submission of the form is required to obtain or retain benefits under the National Flood Insurance Program. Please do not send your completed survey to the above address. PRIVACY ACT STATEMENT AUTHORITY: The National Flood Insurance Act of 1968, Public Law 90-448, as amended by the Flood Disaster Protection Act of 1973, Public Law 93-234. PRINCIPAL PURPOSE(S): This information is being collected for the purpose of determining an applicant's eligibility to request changes to National Flood Insurance Program (NFIP) Flood Insurance Rate Maps (FIRM). ROUTINE USE(S): The information on this form may be disclosed as generally permitted under 5 U.S.C § 552a(b) of the Privacy Act of 1974, as amended. This includes using this information as necessary and authorized by the routine uses published in DHS/FEMA/NFIP/LOMA-1 National Flood Insurance Program (NFIP); Letter of Map Amendment (LOMA) February 15, 2006, 71 FR 7990. DISCLOSURE: The disclosure of information on this form is voluntary; however, failure to provide the information requested may delay or prevent FEMA from processing a determination regarding a requested change to a (NFIP) Flood Insurance Rate Maps (FIRM). A. REQUESTED RESPONSE FROM DHS-FEMA This request is for a (check one): CLOMR: A letter from DHS-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 DHS-FEMA officially revising the current NFIP map to show the changes to floodplains, regulatory floodway or flood elevations. (See 44 CFR Ch. 1, Parts 60, 65 & 72) B. OVERVIEW 1. The NFIP map panel(s) affected for all impacted communities is (are): Community No. Community Name State Map No. Panel No. Effective Date Example: 480301 480287 City of Katy Harris County TX TX 48473C 48201C 0005D 0220G 02/08/83 09/28/90 480170 City of Coppell TX 48113C 0010L N/A (Prelim) 2. a. Flooding Source: Cottonwood Branch b. Types of Flooding: Riverine Coastal Shallow Flooding (e.g., Zones AO and AH) Alluvial fan Lakes Other (Attach Description) 3. Project Name/Identifier: Sandy Lake & Freeport CLOMR 4. FEMA zone designations affected: AE, X500 (choices: A, AH, AO, A1-A30, A99, AE, AR, V, V1-V30, VE, B, C, D, X) 5. Basis for Request and Type of Revision: a. The basis for this revision request is (check all that apply) Physical Change Improved Methodology/Data Regulatory Floodway Revision Base Map Changes Coastal Analysis Hydraulic Analysis Hydrologic Analysis Corrections Weir-Dam Changes Levee Certification Alluvial Fan Analysis Natural Changes New Topographic Data Other (Attach Description) Note: A photograph and narrative description of the area of concern is not required, but is very helpful during review. b. The area of revision encompasses the following structures (check all that apply) Structures: Channelization Levee/Floodwall Bridge/Culvert Dam Fill Other (Attach Description) FEMA Form 086-0-27, (2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 2 of 3 6. Documentation of ESA compliance is submitted (required to initiate CLOMR review). Please refer to the instructions for more information. C. REVIEW FEE Has the review fee for the appropriate request category been included? Yes Fee amount: $ No, (not being submitted to FEMA) Please see the DHS-FEMA Web site at http://www.fema.gov/plan/prevent/fhm/frm_fees.shtm for Fee Amounts and Exemptions. D. SIGNATURE All documents submitted in support of this request are correct to the best of my knowledge. I understand that any false statement may be punishable by fine or imprisonment under Title 18 of the United States Code, Section 1001. Name: Keith Marvin, P.E. Company: City of Coppell Mailing Address: 255 Pakrway Blvd. Coppell, TX 75019 Daytime Telephone No.: 972.304.3562 Fax No.: 972.304.3570 E-Mail Address: kmarvin@coppelltx.gov Signature of Requester (required): Date: As the community official responsible for floodplain management, I hereby acknowledge that we have received and reviewed this Letter of Map Revision (LOMR) or conditional LOMR request. Based upon the community's review, we find the completed or proposed project meets or is designed to meet all of the community floodplain management requirements, including the requirements for when fill is placed in the regulatory floodway, and that all necessary Federal, State, and local permits have been, or in the case of a conditional LOMR, will be obtained. For Conditional LOMR requests, the  applicant has documented Endangered Species Act (ESA) compliance to FEMA prior to FEMA’s review of the Conditional LOMR application. For  LOMR requests, I acknowledge that compliance with Sections 9 and 10 of the ESA has been achieved independently of FEMA’s process.  For actions  authorized, funded, or being carried out by Federal or State agencies, documentation from the agency showing its compliance with Section 7(a)(2)  of the ESA will be submitted. In addition, we have determined that the land and any existing or proposed structures to be removed from the SFHA are or will be reasonably safe from flooding as defined in 44CFR 65.2(c), and that we have available upon request by FEMA, all analyses and documentation used to make this determination. Community Official’s Name and Title: Ken Griffin, P.E. Community Name: City of Coppell Mailing Address: 255 Pakrway Blvd. Coppell, TX 75019 Daytime Telephone No.: 972.304.3686 Fax No.: 972.304.3570 E-Mail Address: kgriffin@coppelltx.gov Community Official’s Signature (required): Date: CERTIFICATION BY REGISTERED PROFESSIONAL ENGINEER AND/OR LAND SURVEYOR This certification is to be signed and sealed by a licensed land surveyor, registered professional engineer, or architect authorized by law to certify elevation information data, hydrologic and hydraulic analysis, and any other supporting information as per NFIP regulations paragraph 65.2(b) and as described in the MT-2 Forms Instructions. All documents submitted in support of this request are correct to the best of my knowledge. I understand that any false statement may be punishable by fine or imprisonment under Title 18 of the United States Code, Section 1001. Certifier’s Name: Niraj Acharya, P.E., CFM License No.: 107110 Expiration Date: 9/30/2013 Company Name: Teague Nall and Perkins, Inc. Telephone No.: 817.336.5773 Fax No.: 817.336.2813 Signature: Date: E-Mail Address: nacharya@tnpinc.com FEMA Form 086-0-27, (2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 3 of 3 Ensure the forms that are appropriate to your revision request are included in your submittal. Form Name and (Number) Required if … Riverine Hydrology and Hydraulics Form (Form 2) New or revised discharges or water-surface elevations Riverine Structures Form (Form 3) Channel is modified, addition/revision of bridge/culverts, addition/revision of levee/floodwall, addition/revision of dam Coastal Analysis Form (Form 4) New or revised coastal elevations Coastal Structures Form (Form 5) Addition/revision of coastal structure Alluvial Fan Flooding Form (Form 6) Flood control measures on alluvial fans Seal (Optional) FEMA Form 086-0-27A, (2/2011) Previously FEMA Form 81-89 MT-2 Form 2 Page 1 of 3 U.S. DEPARTMENT OF HOMELAND SECURITY FEDERAL EMERGENCY MANAGEMENT AGENCY RIVERINE HYDROLOGY & HYDRAULICS FORM O.M.B No. 1660-0016 Expires February 28, 2014 PAPERWORK BURDEN DISCLOSURE NOTICE Public reporting burden for this form is estimated to average 3.5 hours per response. The burden estimate includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send comments regarding the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Department of Homeland Security, Federal Emergency Management Agency, 1800 South Bell Street, Arlington VA 20958-3005, Paperwork Reduction Project (1660-0016). Submission of the form is required to obtain or retain benefits under the National Flood Insurance Program. Please do not send your completed survey to the above address. PRIVACY ACT STATEMENT AUTHORITY: The National Flood Insurance Act of 1968, Public Law 90-448, as amended by the Flood Disaster Protection Act of 1973, Public Law 93-234. PRINCIPAL PURPOSE(S): This information is being collected for the purpose of determining an applicant's eligibility to request changes to National Flood Insurance Program (NFIP) Flood Insurance Rate Maps (FIRM). ROUTINE USE(S): The information on this form may be disclosed as generally permitted under 5 U.S.C § 552a(b) of the Privacy Act of 1974, as amended. This includes using this information as necessary and authorized by the routine uses published in DHS/FEMA/NFIP/LOMA-1 National Flood Insurance Program (NFIP); Letter of Map Amendment (LOMA) February 15, 2006, 71 FR 7990. DISCLOSURE: The disclosure of information on this form is voluntary; however, failure to provide the information requested may delay or prevent FEMA from processing a determination regarding a requested change to a NFIP Flood Insurance Rate Maps (FIRM). Flooding Source: Cottonwood Branch Note: Fill out one form for each flooding source studied A. HYDROLOGY 1. Reason for New Hydrologic Analysis (check all that apply) Not revised (skip to section B) No existing analysis Improved data Alternative methodology Proposed Conditions (CLOMR) Changed physical condition of watershed 2. Comparison of Representative 1%-Annual-Chance Discharges Location Drainage Area (Sq. Mi.) Effective/FIS (cfs) Revised (cfs) 3. Methodology for New Hydrologic Analysis (check all that apply) Statistical Analysis of Gage Records Precipitation/Runoff Model  Specify Model: Regional Regression Equations Other (please attach description) Please enclose all relevant models in digital format, maps, computations (including computation of parameters), and documentation to support the new analysis. 4. Review/Approval of Analysis If your community requires a regional, state, or federal agency to review the hydrologic analysis, please attach evidence of approval/review. 5. Impacts of Sediment Transport on Hydrology Is the hydrology for the revised flooding source(s) affected by sediment transport? Yes No If yes, then fill out Section F (Sediment Transport) of Form 3. If No, then attach your explanation.. FEMA Form 086-0-27A, (2/2011) Previously FEMA Form 81-89 MT-2 Form 2 Page 2 of 3 B. HYDRAULICS 1. Reach to be Revised Description Cross Section Water-Surface Elevations (ft.) Effective Proposed/Revised Downstream Limit* 1400ft D/S of Sandy Lake Rd.8000 473.18 473.28 Upstream Limit* 2000ft U/S of Freeport Pkwy 14600 495.05 495.10 *Proposed/Revised elevations must tie-into the Effective elevations within 0.5 foot at the downstream and upstream limits of revision. 2. Hydraulic Method/Model Used: HEC-RAS v. 4.1 – 1-D, Steady State, Backwater Analysis 3. Pre-Submittal Review of Hydraulic Models* DHS-FEMA has developed two review programs, CHECK-2 and CHECK-RAS, to aid in the review of HEC-2 and HEC-RAS hydraulic models, respectively. We recommend that you review your HEC-2 and HEC-RAS models with CHECK-2 and CHECK-RAS. 4. Models Submitted Natural Run Floodway Run Datum Duplicate Effective Model* File Name: *.p02 Plan Name: Duplicate Eff FP File Name: *.p01 Plan Name: Duplicate Eff FW NAVD88 Corrected Effective Model* File Name: ______________ Plan Name: ______________ File Name: ______________ Plan Name: ______________ __________ Existing or Pre-Project Conditions Model File Name: *.p03 Plan Name: Revised Existing FP File Name: *.p04 Plan Name: Revised Existing FW NAVD88 Revised or Post-Project Conditions Model File Name: *.p13 Plan Name: Post Project FP File Name: *.p07 Plan Name: Post Project FW NAVD88 Other - (attach description) File Name: ______________ Plan Name: ______________ File Name: ______________ Plan Name: ______________ __________ * For details, refer to the corresponding section of the instructions. Digital Models Submitted? (Required) C. MAPPING REQUIREMENTS A certified topographic work map must be submitted showing the following information (where applicable): the boundaries of the effective, existing, and proposed conditions 1%-annual-chance floodplain (for approximate Zone A revisions) or the boundaries of the 1%- and 0.2%-annual-chance floodplains and regulatory floodway (for detailed Zone AE, AO, and AH revisions); location and alignment of all cross sections with stationing control indicated; stream, road, and other alignments (e.g., dams, levees, etc.); current community easements and boundaries; boundaries of the requester's property; certification of a registered professional engineer registered in the subject State; location and description of reference marks; and the referenced vertical datum (NGVD, NAVD, etc.). Digital Mapping (GIS/CADD) Data Submitted (preferred) Topographic Information: 1’ ground survey and 2’ aerial topographic contours Source: Ground Survey by TNP, Inc.; aerial by NCTCOG Date: Accuracy: see above Note that the boundaries of the existing or proposed conditions floodplains and regulatory floodway to be shown on the revised FIRM and/or FBFM must tie-in with the effective floodplain and regulatory floodway boundaries. Please attach a copy of the effective FIRM and/or FBFM, at the same scale as the original, annotated to show the boundaries of the revised 1%-and 0.2%-annual-chance floodplains and regulatory floodway that tie-in with the boundaries of the effective 1%-and 0.2%-annual-chance floodplain and regulatory floodway at the upstream and downstream limits of the area on revision. Annotated FIRM and/or FBFM (Required) FEMA Form 086-0-27A, (2/2011) Previously FEMA Form 81-89 MT-2 Form 2 Page 3 of 3 D. COMMON REGULATORY REQUIREMENTS* 1. For LOMR/CLOMR requests, do Base Flood Elevations (BFEs) increase? Yes No a. For CLOMR requests, if either of the following is true, please submit evidence of compliance with Section 65.12 of the NFIP regulations:  The proposed project encroaches upon a regulatory floodway and would result in increases above 0.00 foot compared to pre-project conditions.  The proposed project encroaches upon a SFHA with or without BFEs established and would result in increases above 1.00 foot compared to pre-project conditions. b. Does this LOMR request cause increase in the BFE and/or SFHA compared with the effective BFEs and/or SFHA? Yes No If Yes, please attach proof of property owner notification and acceptance (if available). Elements of and examples of property owner notifications can be found in the MT-2 Form 2 Instructions. 2. Does the request involve the placement or proposed placement of fill? Yes No If Yes, the community must be able to certify that the area to be removed from the special flood hazard area, to include any structures or proposed structures, meets all of the standards of the local floodplain ordinances, and is reasonably safe from flooding in accordance with the NFIP regulations set forth at 44 CFR 60.3(A)(3), 65.5(a)(4), and 65.6(a)(14). Please see the MT-2 instructions for more information. 3. For LOMR requests, is the regulatory floodway being revised? Yes No If Yes, attach evidence of regulatory floodway revision notification. As per Paragraph 65.7(b)(1) of the NFIP Regulations, notification is required for requests involving revisions to the regulatory floodway. (Not required for revisions to approximate 1%-annual-chance floodplains [studied Zone A designation] unless a regulatory floodway is being established. Elements and examples of regulatory floodway revision notification can be found in the MT-2 Form 2 Instructions.) 4. For CLOMR requests, please submit documentation to FEMA and the community to show that you have complied with Sections 9 and 10 of the Endangered Species Act (ESA). For actions authorized, funded, or being carried out by Federal or State agencies, please submit documentation from the agency showing its compliance with Section 7(a)(2) of the ESA. Please see the MT-2 instructions for more detail. * Not inclusive of all applicable regulatory requirements. For details, see 44 CFR parts 60 and 65. FEMA Form 086-0-27B, (2/2011) Previously FEMA Form 81-89B MT-2 Form 3 Page 1 of 3 DEPARTMENT OF HOMELAND SECURITY FEDERAL EMERGENCY MANAGEMENT AGENCY RIVERINE STRUCTURES FORM O.M.B. NO. 1660-0016 Expires February 28, 2014 PAPERWORK BURDEN DISCLOSURE NOTICE Public reporting burden for this form is estimated to average 7 hours per response. The burden estimate includes the time for reviewing instructions, searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send comments regarding the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Department of Homeland Security, Federal Emergency Management Agency, 1800 South Bell Street, Arlington, VA 20598-3005, Paperwork Reduction Project (1660-0016). Submission of the form is required to obtain or retain benefits under the National Flood Insurance Program. Please do not send your completed survey to the above address. PRIVACY ACT STATEMENT AUTHORITY: The National Flood Insurance Act of 1968, Public Law 90-448, as amended by the Flood Disaster Protection Act of 1973, Public Law 93-234. PRINCIPAL PURPOSE(S): This information is being collected for the purpose of determining an applicant's eligibility to request changes to National Flood Insurance Program (NFIP) Flood Insurance Rate Maps (FIRM). ROUTINE USE(S): The information on this form may be disclosed as generally permitted under 5 U.S.C § 552a(b) of the Privacy Act of 1974, as amended. This includes using this information as necessary and authorized by the routine uses published in DHS/FEMA/NFIP/LOMA-1 National Flood Insurance Program; Letter of Map Amendment (LOMA) February 15, 2006, 71 FR 7990. DISCLOSURE: The disclosure of information on this form is voluntary; however, failure to provide the information requested may delay or prevent FEMA from processing a determination regarding a requested change to a NFIP Flood Insurance Rate Maps (FIRM). Flooding Source: Cottonwood Branch Note: Fill out one form for each flooding source studied. A. GENERAL Complete the appropriate section(s) for each Structure listed below: Channelization...............complete Section B Bridge/Culvert................complete Section C Dam...............................complete Section D Levee/Floodwall.............complete Section E Sediment Transport........complete Section F (if required) Description Of Modeled Structure 1. Name of Structure: Sandy Lake Road Bridge Type (check one): Channelization Bridge/Culvert Levee/Floodwall Dam Location of Structure: Sandy Lake Road @ Cottonwood Branch (between Winding Hollow Lane and N. Coppell Road) Downstream Limit/Cross Section: 9430 Upstream Limit/Cross Section: 9590 2. Name of Structure: Freeport Parkway Bridge Type (check one): Channelization Bridge/Culvert Levee/Floodwall Dam Location of Structure: Freeport Parkway @ Cottonwood Branch (1850 feet north of Ruby Road) Downstream Limit/Cross Section: 12567 Upstream Limit/Cross Section: 12707 3. Name of Structure: Type (check one) Channelization Bridge/Culvert Levee/Floodwall Dam Location of Structure: Downstream Limit/Cross Section: Upstream Limit/Cross Section: NOTE: FOR MORE STRUCTURES, ATTACH ADDITIONAL PAGES AS NEEDED. FEMA Form 086-0-27B, (2/2011) Previously FEMA Form 81-89B MT-2 Form 3 Page 2 of 3 B. CHANNELIZATION Flooding Source: Name of Structure: 1. Hydraulic Considerations The channel was designed to carry (cfs) and/or the -year flood. The design elevation in the channel is based on (check one): Subcritical flow Critical flow Supercritical flow Energy grade line If there is the potential for a hydraulic jump at the following locations, check all that apply and attach an explanation of how the hydraulic jump is controlled without affecting the stability of the channel. Inlet to channel Outlet of channel At Drop Structures At Transitions Other locations (specify): 2. Channel Design Plans Attach the plans of the channelization certified by a registered professional engineer, as described in the instructions. 3. Accessory Structures The channelization includes (check one): Levees [Attach Section E (Levee/Floodwall)] Drop structures Superelevated sections Transitions in cross sectional geometry Debris basin/detention basin [Attach Section D (Dam/Basin)] Energy dissipator Weir Other (Describe): 4. Sediment Transport Considerations Are the hydraulics of the channel affected by sediment transport? Yes No If yes, then fill out Section F (Sediment Transport) of Form 3. If No, then attach your explanation for why sediment transport was not considered. C. BRIDGE/CULVERT Flooding Source: Cottonwood Branch Name of Structure: Sandy Lake Drive Bridge 1. This revision reflects (check one): Bridge/culvert not modeled in the FIS Modified bridge/culvert previously modeled in the FIS Revised analysis of bridge/culvert previously modeled in the FIS 2. Hydraulic model used to analyze the structure (e.g., HEC-2 with special bridge routine, WSPRO, HY8): HEC-RAS v. 4.1 If different than hydraulic analysis for the flooding source, justify why the hydraulic analysis used for the flooding source could not analyze the structures. Attach justification. 3. Attach plans of the structures certified by a registered professional engineer. The plan detail and information should include the following (check the information that has been provided): Dimensions (height, width, span, radius, length) Distances Between Cross Sections Shape (culverts only) Erosion Protection Material Low Chord Elevations – Upstream and Downstream Beveling or Rounding Top of Road Elevations – Upstream and Downstream Wing Wall Angle Structure Invert Elevations – Upstream and Downstream Skew Angle Stream Invert Elevations – Upstream and Downstream Cross-Section Locations 4. Sediment Transport Considerations Are the hydraulics of the structure affected by sediment transport? Yes No If Yes, then fill out Section F (Sediment Transport) of Form 3. If no, then attach an explanation.(SEE ATTACHED SUPPLEMENT) FEMA Form 086-0-27B, (2/2011) Previously FEMA Form 81-89B MT-2 Form 3 Page 3 of 3 B. CHANNELIZATION Flooding Source: Name of Structure: 1. Hydraulic Considerations The channel was designed to carry (cfs) and/or the -year flood. The design elevation in the channel is based on (check one): Subcritical flow Critical flow Supercritical flow Energy grade line If there is the potential for a hydraulic jump at the following locations, check all that apply and attach an explanation of how the hydraulic jump is controlled without affecting the stability of the channel. Inlet to channel Outlet of channel At Drop Structures At Transitions Other locations (specify): 2. Channel Design Plans Attach the plans of the channelization certified by a registered professional engineer, as described in the instructions. 3. Accessory Structures The channelization includes (check one): Levees [Attach Section E (Levee/Floodwall)] Drop structures Superelevated sections Transitions in cross sectional geometry Debris basin/detention basin [Attach Section D (Dam/Basin)] Energy dissipator Weir Other (Describe): 4. Sediment Transport Considerations Are the hydraulics of the channel affected by sediment transport? Yes No If yes, then fill out Section F (Sediment Transport) of Form 3. If No, then attach your explanation for why sediment transport was not considered. C. BRIDGE/CULVERT Flooding Source: Cottonwood Branch Name of Structure: Freeport Parkway Bridge 3. This revision reflects (check one): Bridge/culvert not modeled in the FIS Modified bridge/culvert previously modeled in the FIS Revised analysis of bridge/culvert previously modeled in the FIS 4. Hydraulic model used to analyze the structure (e.g., HEC-2 with special bridge routine, WSPRO, HY8): HEC-RAS v. 4.1 If different than hydraulic analysis for the flooding source, justify why the hydraulic analysis used for the flooding source could not analyze the structures. Attach justification. 3. Attach plans of the structures certified by a registered professional engineer. The plan detail and information should include the following (check the information that has been provided): Dimensions (height, width, span, radius, length) Distances Between Cross Sections Shape (culverts only) Erosion Protection Material Low Chord Elevations – Upstream and Downstream Beveling or Rounding Top of Road Elevations – Upstream and Downstream Wing Wall Angle Structure Invert Elevations – Upstream and Downstream Skew Angle Stream Invert Elevations – Upstream and Downstream Cross-Section Locations 4. Sediment Transport Considerations Are the hydraulics of the structure affected by sediment transport? Yes No If Yes, then fill out Section F (Sediment Transport) of Form 3. If no, then attach an explanation. (SEE ATTACHED SUPPLEMENT) MT‐2 Supplemental Page      “Riverine Structures Form” (MT‐2 Form 3, Page 2 and 3 of 11)   Section C, “Was Sediment Transport Considered”    At present, the channel reaches through both project locations demonstrate stability in the  forms of riffle and pool formations, as well as point and center bar formations.   During  construction, a detailed erosion control plan is anticipated to be implemented, with any  disturbed areas to be protected by armoring or re‐vegetation.  Additionally, proposed  improvements will not significantly alter velocities and/or sediment transport through the  project reach.  The proposed improvements will not create a significant potential for altering the  stream hydrology through erosion or sedimentation.  CPL00243     INTRO   This summ proposed  of Coppe Managem   LOCAT   Cottonwo Parkway a northeast) Creek, app stream alig   Cottonwo Flood Insu compariso DFIRM/M Technical  in Append and Flood   HYDRO   No new hy Insurance  100‐, and  are design Managem 1.  Based o and 1‐foot 3‐02 (March 2 DUCTION mary serves t bridge improv ll, Dallas Cou ment Agency (F TION AND od Branch cro and Sandy Lak ) before cross proximately 1 gnment and lo od Branch is  urance Rate  ons of the  MAPMOD.  Th Partner for th dix A, includin way Encroach OLOGIC M ydrology was  Study for Dal 500‐year pea ned to pass th ment Study for  on coordinatio t of freeboard 22510 11230 8000 6710 Cross Section   2013)  N  to support a  vements at Sa unty, Texas.   FEMA) on beha D BACKGR osses Freeport ke Road.  The sing Sandy Lak 1.5 miles dow ocation.  a FEMA studi Map (DFIRM) Revised Exist his was done he Dallas Cou g:  a copy of t hment data.  MODELING performed as las County we k discharges,  he 100‐year u the City of Co on with the C  under Ultima Tab 10‐yr (cfs) 3,600 4,200 4,500 4,500   request for a andy Lake Rd a This CLOMR alf of the City  ROUND  t Parkway app e creek then  ke Road.  The nstream of Sa ied stream (Z ) 48113C0010 ting and Po e (with the C nty MAPMOD the preliminar G  s part of this a ere used for e also match th ultimate flows oppell (Halff A ity, the bridge ate discharges ble 1:  Cottonw 50‐yr 100 (cfs) (cf 5,000 5,6 5,900 6,7 6,400 7,3 6,400 7,3 FEMA C a Conditional and Freeport P R request is  of Coppell.  proximately 2, flows approx e creek ultima andy Lake Roa one AE, with  0L.  For the  st‐Project flo City’s consent D, Halff Assoc ry DFIRM map nalysis.  Flows existing condit he current effe s, which were Associates; Jan es are designe .  wood Branch Flo 0‐yr 500‐yr fs) (cfs) 600 7,100 700 8,600 300 9,400 300 9,400 Conditiona Sandy La l Letter of M Parkway, alon being submit ,200 feet sout imately 2,900 ately combine ad.  Exhibit 1 a Floodway)  purposes of  oodplains are t) on the dir ciates.  Prelim p, Summary of s published in tions.  These f ective (2001)  e obtained fro n 1991).”  Pea ed for 2‐feet o low Summary   Ultimate r 100‐yr (cfs) 6,960 8,250 8,250 8,390 al Letter of ke Road and  Map Revision ( ng Cottonwoo tted to the F th of the inter 0 feet downst s with the ma 1 – “Location  as shown on this CLOMR  e made with rection of FE minary MAPMO f Peak Discha  the prelimina flows, which in FIS study.  Th om the “City‐ ak flows are su of freeboard u                  At Royal  Lane At Freeport P At Sandy Lak At Denton Ta Comm f Map Revi Freeport Par P (CLOMR) to r d Branch in th Federal Emer rsection of Fre tream (toward ain stem of D Map” ‐ depic  preliminary D request, ma h the prelim EMA’s Coope OD data is pro rges, Flood Pr ary MAPMOD  nclude the 10 e proposed b ‐Wide Storm W ummarized in  under FIS disch   e . Pkwy. ke Rd. ap Rd. ents ision  rkway  Page 1  reflect  he City  rgency  eeport  ds the  Denton  cts the  Digital  apping  minary  erating  ovided  rofiles,  Flood  0‐, 50‐,  ridges  Water  Table  harges  CPL00243     HYDRA   EFFECTIV   FEM Requ Cotto unab the le impro provi provi   Effec Since were flood   Effec The d outp flood with  conta DFIRM   Effec FIRM   DUPLICA   Dupl The d (discu consi   1 2   The e comm impo there   3‐02 (March 2 AULIC MO VE MODEL  A Data Requ uests were m onwood Branc ble to locate a etter of determ ovements (LO ided by FEMA ided digital mo ctive Floodpl e no digital f e obtained fr dway output  ctive Floodw digital floodwa ut contains “n dway encroach current Natio ained within t M flood maps ctive floodplai M map in Appe TE EFFECTIVE licate Effectiv duplicate effe ussed above)  isted of:  1. Adjusting  2. Removal o effective mod mon with De orted as cross‐ eby allowing th   2013)  ODELING  uest  ade to FEMA ch.  This reque any floodplain mination that  OMR Case No. A match the re odel does not  lain Model  floodplain m rom the un‐e table.  These way Model  ay model obta negative surch hments are in onal Flood Ins this model do s, within the pr n/floodway li ndix A.  VE MODELS  ve Floodplai ctive floodpla into HEC‐RAS  bounding brid of the floodwa el code appea enton Creek,  ‐sections 1 th he software to   A in order to  est resulted in n models as pa was distribute . 94‐06‐307P). vised flood pr include stream odel was ma encroached,  e values are t ained from FE harges” in som ncluded.   The surance Progr o not match  roject reach. mits (obtaine n  ain model was and making m dge sections to ay encroachm ars to contain the receiving rough 8 in HE o identify the s C obtain the e n a digital HEC‐ art of this dat ed after accep .  Unfortunate rofiles provide m crossings at ade available 100‐year wa tabulated in T EMA was exec me locations.  ese results ren ram (NFIP) st the floodway ed from the p s created by im minimal revisio o be 1’ off of t ents.   eight (8) cros g stream for  EC‐RAS in orde sections in the Conditiona Sandy La effective flood ‐2 floodway m ta request.  FE ptance of the L ely, it does no ed with the let t Parkway Bou e by FEMA, E ater surface  Table 3.  cuted using th  That is, the  nder the effec tandards.  Fur y widths curr preliminary DF mporting the  ons to allow t he structure, a ss sections (se Cottonwood  er to maintain eir appropriate al Letter of ke Road and  dplain and flo model for the  EMA also prov LOMR for the  ot appear that tter of determ ulevard or Den Effective floo elevations li he HEC‐2 softw 100‐year WSE ctive floodway rthermore, th ently shown  FIRM data) ar HEC‐2 Effecti the model to r and  ections 32816 Branch.  Th n continuity in e location.  f Map Revi Freeport Par P oodway mode stream.  FEMA vided a hardco Parkway Bou t the digital m ination.  In fac nton Tap Road odplain eleva sted in the H ware.  The res EL is reduced  y out of comp he floodway w on the prelim re provided o ve floodway m run.  These ch 6 to 34822) th hese sections  n stream stati ision  rkway  Page 2  els for  A was  opy of  levard  models  ct, the  d.    ations  HEC‐2  sulting  when  pliance  widths  minary  on the  model  hanges  at are  were  oning,  CPL00243     The e (at cr Creek (discu   The  down WSEL sectio execu comp   Dupl Using creat encro There sectio deter   Simil surch   REVISED    Revi The R hydra (for S cond “n” v prese and R   The o even in the   The e sectio does  appe show Dent cond reach 3‐02 (March 2 effective mod ross section 3 k flood profile ussed below).  resulting 100‐ nstream and u Ls from the E on of Appendi ute HEC‐2 mo putation engin licate Effectiv g the duplicat ted by insertin oachment wid e appear to b ons 32816, 1 rmined by me ar to the Effe harge (cross se EXISTING M sed Existing  Revised Existin aulic data in th Sandy Lake Ro ucted by TNP values, and con ent floodplain Revised Existin original HEC‐2 t.  Peak discha e FIS Study.    effective mod on 1 in the R not match th ears to be app wn in the curre on Creek stre ition is far en h.  However,   2013)  el utilized a st 2816).  This v es at Station  ‐year profile m upstream lim Effective Mod ix B.  The diffe odels in HEC‐RA nes between b ve Floodway te effective flo ng the effectiv dths do not m be four (4) cro 11380, 11880, easuring the ef ective Floodwa ections 9590, 1 ODEL  Floodplain  ng Floodplain he Duplicate E oad) and 1242 , as well as ne ntraction/expa n conditions.   ng model are d 2 model provid arges for the  el uses a know Revised Existin he WSELs sho roximately 46 ent effective F am profile is p ough downstr  it should be   tarting 100‐ye value does not 328+16.  This matches the  its, respective el and Duplic erences in wat AS (namely re both platforms y  oodplain mod ve model enc atch the flood oss sections in , and 12420) ffective floodw ay model, the 10120, 12675, model was c Effective Mode 20 through 12 ewer aerial top ansion coeffic The changes  documented i ded by FEMA 10‐, 50‐, and 5 wn 100‐year W ng HEC‐RAS m own on the D 61.50.  The sta FIS profiles at  provided in Ap ream that its e noted that C ear WSEL of 4 t appear to m s value was r effective FIS  ely, as indicate cate Effective  ter surface ele each length re s, particularly  del as a base, roachment st dway widths s n the HEC‐2 m .  The floodw way widths fro e Duplicate Ef , 19794, 19944 created by add el.  Updates w 2957 (for Free pographic dat cients were als to hydraulic p n Table 2.  only contains 500‐year even WSEL of 464.3 model) as the  Denton Creek  arting water su Denton Creek ppendix A.  M impacts are n t FEMA typic Conditiona Sandy La 464.39 as the d match the WSE revised in sub profile within ed in Table 3 model are gi evations are at evisions), as w at bridges and , the duplicat tations listed i shown on the  model that do way encroach om the prelim ffective Flood 4, 20069).  ding and upd were made to c port Parkway ta in the overb so changed in  parameters b s peak discha nt were added 39 at cross‐se downstream  flood profiles urface elevatio k river station Modeling indica not felt throug cally requires  al Letter of ke Road and  downstream b EL shown in th bsequent “Rev n 0.00 feet an .  A comparis iven in the ”D ttributed to ch ell as differen d culverts.  e effective flo in the HEC‐2 i DFIRM map in o not have flo hments for th inary DFIRM d dway model a ating topogra cross sections  y) to reflect de banks.  Reach  this model in  etween the ( rge informatio d using the inf ection 32816 ( boundary co s in the Dallas ons were revi 328+16.  A co ates that the c gh the propos the “normal f Map Revi Freeport Par P boundary con he effective D vised Existing” nd 0.21 feet a son of the 100 Duplicate Effe hanges necess ces in the hyd oodway mode input.  Again,  n the project  oodway data  hese sections  data.    also shows ne aphic definitio 9430 through esign ground s lengths, Man order to refle Duplicate) Eff on for the 100 formation pro (equivalent to ndition.  This  s County FIS,  sed to match  opy of the per change in bou sed project/re l depth” bou ision  rkway  Page 3  ndition  Denton  ” runs  at the  0‐year  ective”  sary to  draulic  el was  these  reach.   (Cross  were  gative  on and  h 9590  survey  nning’s  ect the  fective  0‐year  ovided  o cross  value  which  those  rtinent  undary  evision  undary  CPL00243     cond were   This m   Revis WSEL   * ‐ indicate   POST‐PRO   Prop The f   Sand   Free ‐ 9430 9494 9526 9590 ‐ 10120 10130 12420 ‐ 12540 12585 12615 12675 ‐ ‐Sandy Lake Rd.Freeport Pkwy. Crossing Effective X 3‐02 (March 2 itions at the d e to be extend model represe sed Existing flo Ls are tabulate Tab s section that w OJECT MODE posed Improv following par dy Lake Rd.:  eport Pkwy.:  L ‐ 1430 0 64 0 32 0 64 0 ‐ 530 0 10 0 540 0 ‐ 120 0 45 0 30 0 60 0 ‐ ‐ XS D/S Reach  Length   2013)  downstream e ed to Denton  ents the pre‐p oodplain limit ed in Table 3.  ble 2:  Effective was renumbered EL  vements  ragraphs desc This projec The main c Grading wi bridge, and and 60 feet an elevatio bridge.  Giv using gabio vegetated a This projec to be supp in place.   LOB Chan R ‐‐ .065 0.05 0 0.02 0.02 0 0.02 0.02 0 0.06 0.05 0 ‐‐ 0.06 0.05 0 0.06 0.05 0 0.06 0.05 0 ‐‐ 0.06 0.05 0 0.02 0.02 0 0.02 0.02 0 0.06 0.05 0 ‐‐ ‐‐ Freeport Parkway Effective Model Manning's "n" Sandy Lake Road   end of a strea Creek.  project conditio ts at both cro e and Revised E d from Effective cribe the scop ct will replace channel will  ill consist of  d transitionin t downstream on of approx ven the prop ons is propo as needed.  ct will replace ported by two Grading an ROB C ‐‐ 0.06 0.1 0.02 0.3 0.02 0.3 0.07 0.1 ‐‐ 0.075 0.1 0.075 0.1 0.075 0.1 ‐‐ 0.075 0.1 0.02 0.3 0.02 0.3 0.07 0.3 ‐‐ ‐‐ Contraction/ C m.  This revis on and is used ossings are sho Existing Hydrau e Model to mat pe of both pro e the existing remain in pla benching/ex ng back to th m.  The propo ximately 482. posed abrupt osed in selec e the existing o rows of 30 d benching  E ‐9233 0.3 9475 0.5 9494 0.5 9526 0.3 9590 ‐9890 0.3 10120 0.3 10130 0.3 12420 ‐12539 0.3 12567* 0.5 12595* 0.5 12661* 0.5 12707* ‐12868 ‐12957 Expansion Revised  Existing  XS Conditiona Sandy La sion should be d to evaluate t own on Exhib ulic Parameter tch reach length oposed proje g bridge with  ace and be s xcavation in  e natural cha osed low cho .00 feet, 1.7 t transition g ct locations. g bridge with 0‐inch piers.   improveme LOB 1233 0.065 242 0.065 19 0.02 32 0.02 64 0.06 300 0.06 228 0.06 10 0.06 540 0.035 117 0.035 25 0.035 30 0.02 66 0.055 39 0.055 163 0.055 87 0.055 Re D/S Reach  Length al Letter of ke Road and  e considered if the actual imp bits 2A and 3A r Comparison  hs.  cts.  a 140‐foot, t straddled by  the right ov annel within  ord of the new  feet higher  rading, chann  Disturbed  h a 180‐foot,  The main ch nts are prop B Chan ROB 5 0.05 0.06 5 0.05 0.06 2 0.02 0.02 2 0.02 0.02 6 0.05 0.07 6 0.05 0.07 6 0.05 0.07 6 0.05 0.07 5 0.05 0.06 5 0.05 0.06 5 0.05 0.06 2 0.02 0.02 5 0.05 0.06 5 0.05 0.06 5 0.05 0.06 5 0.05 0.06 Freeport Parkway evised Existing Mode Manning's "n" Sandy Lake Road f Map Revi Freeport Par P f the revision  pact of the pro A.  Revised Ex three‐span b two sets of  verbank unde 25 feet upst w bridge will  than the ex nel bank arm areas will b three‐span b hannel will re posed in the B C 6 0.1 6 0.1 2 0.3 2 0.3 7 0.3 7 0.1 750.1 750.1 6 0.1 6 0.1 6 0.1 2 0.3 6 0.3 6 0.1 6 0.1 6 0.1 el Contraction/Exp ision  rkway  Page 4  reach  oject.    xisting    ridge.   piers.   er the  tream  be at  xisting  moring  be re‐ bridge  emain  e left  E 0.3 0.3 0.5 0.5 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.5 0.5 0.3 0.3 0.3 pansion CPL00243       Post This m discu impro resul 1259   Mod the g     Propo     3‐02 (March 2 ‐Project Con model uses Re ussed above.  T ovements.  At t, the Revised 95, and 12661) eling indicates grading improv osed conditio   2013)  overbank,  The propo approxima and gabion channel th At present area in the within the  this area to proposed  proposed t   nditions Flood evised Existing The Post‐Proje t both crossin d Existing brid ) in order to ac s that the com vements, wou ns WSELs are      which will i osed low ch ately 493.65 f ns are propo rough the br t, there is a “ e left overban MAPMOD 1 o reclaim a p to be retai to be mitigat dplain  g as a base, bu ect Conditions ngs, the propo dge face cross ccommodate w mbination of th uld result in low tabulated in T C increase con hord of the  feet, 2 feet h osed in orde ridge.  “bowl” or lo nk, just down 100‐year floo portion of th ned by a g ed by the pro ut includes the s model reflec osed structure s sections had wider bridges  he proposed ta wered 100‐yea Table 3.  Conditiona Sandy La nveyance cap new bridge higher than th er to armor t ow‐lying depr nstream of th odplain.  The he property f gabion wall  oposed bridg e proposed im cts the propos es are wider th d to be remo s in the model. aller and wide ar WSELs upst al Letter of ke Road and  pacity throu e will be at he existing br the benched ression in th he bridge.  T e City propos from the floo and obstruc ge transition  mprovements a ed bridge and han those alre oved (cross se .    er bridge struc tream of both f Map Revi Freeport Par P ugh the struc t an elevatio ridge.  Rock r d overbank o he ineffective his area is lo ses to place  odplain.  The cted flow ar grading.  at both crossi d associated gr eady in place. ections 9494,  ctures, coupled  bridges.  ision  rkway  Page 5  cture.   on of  riprap  of the  e flow  cated  fill in  e fill is  rea is  ngs as  rading  .  As a  9526,  d with  CPL00243       Exhib   Exhib map    Exhib   Post The E conta flood prelim Coor with  appli base   For t the li 3‐02 (March 2 (#####) – 1 – See A 2 – Per F bit 2A and 3A  bit 4 – Annota for the area.  bit 5 – Constru ‐Project Con Effective and  ain negative s dway encroac minary DFIRM dinator for th NFIP regulat cant must com .  his reason, flo mits of study  (800 923 (947 (949 (952 (959 989 (101 (101 (124 125 12567 (1 12595 (1 12661 (1 12707 (1 128 129 (146Sandy Lake RoadFreeport ParkwayCross Se Crossing  2013)  Table – Parenthetical  Appendix B for c FEMA LOMR MT  depicts the p ated FIRM, ov uction Plans p nditions Flood Duplicate Effe urcharges at v hment width M maps.   Ba e State of Tex ions, and bec mpliance in th oodway encro and revised to Effect (HEC‐ (EFF (ft) 00) 473.2 33 ‐ 75) 477.2 94) 477.5 26) 479.4 90) 481.9 90 ‐ 20) 481.9 30) 482.7 20) 490.4 39 ‐ 12540) 491.1 12585) 490.9 12615) 491.0 12675) 491.7 68 ‐ 57 ‐ 00) 495.1 ection   e 3:  100‐Year W notation indica complete flood  T‐2 instructions roposed flood erlays the pro rovides a com dway  ective floodw various points s/locations sh sed on a pho xas, it was indi cause of the  e subject reac oachments we o comply with  ive  ‐2)  F) Duplicate  Effective   (DE) (ft) 20 473.28 ‐ 20 477.25 50 477.54 40 479.32 90 481.91 ‐ 90 481.82 70 482.49 40 490.51 ‐ 10 491.15 90 491.00 00 491.04 70 491.76 ‐ ‐ 10 495.09 C WSEL Comparis ates equivalent profile data  , tie‐in must be  dplain and floo oposed floodp mpilation of pro way models do s inside and o hown do not one conversat icated that sin availability o ch to be revise ere adjusted to the NFIP.  Corrective  Effective   (CE) R Ex (ft) 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 FREEPORT PARKWAY B SANDY LAKE ROAD B Conditiona Sandy La son (FIS Flows) section in the e e within 0.5 feet odway as they plain and flood oposed constr o not meet cu outside of the  t coincide wit tion with Mr nce the effecti of the prelimi ed and may us o match the p evised  xisting  (RE) Post Proje (PP (ft) (ft) 473.28 473.2 477.35 477.3 478.37 478.3 477.54 ‐ 480.42 ‐ 482.24 479.5 482.50 480.3 482.72 482. 482.97 482.4 490.38 490.3 491.11 491.0 491.24 491.1 491.03 ‐ 491.66 ‐ 492.01 491.5 491.93 491.4 491.99 491.4 495.11 495.1 BRIDGE RIDGE al Letter of ke Road and  )1  effective FEMA  t of effective flo y relate to the  dway atop the ruction plans f urrent NFIP st revision reach th the floodw r. Naresh Balij ive floodway i inary DFIRM  se the DFIRM e preliminary D t‐ ect  ) Tie ‐In  Comparison (RE‐EFF) (ft) 280.08 35 ‐ 30 ‐ ‐ ‐ 51 ‐ 38 ‐ 2 ‐ 410.27 38 ‐0.02 00 ‐ 15 ‐ ‐ ‐ 53 ‐ 40 ‐ 47 ‐ 100.01 f Map Revi Freeport Par P model  ood elevations effective map e preliminary D for the crossin tandards since h.  Additionall way shown o ja, FEMA Rev s not in comp maps, the C encroachment FIRM widths w n2  Project  Impact  Comparison (PP‐RE) (ft) 0.00 0.00 ‐0.07 ‐ ‐ ‐2.73 ‐2.12 ‐0.52 ‐0.56 0.00 ‐0.11 ‐0.09 ‐ ‐ ‐0.48 ‐0.53 ‐0.52 ‐0.01 ision  rkway  Page 6  pping.  DFIRM  ngs.  e they  ly, the  on the  visions  pliance  LOMR  ts as a  within  CPL00243       The  (140  bridg over lot in accu ties i    ULTIMAT   Per City c determine Jan 1991) indicates  both loca both locat 3‐02 (March 2 post‐project  feet versus  ge opening.   bank (betwee n the right ov rate topogra n to the preli TE CONDITIO criteria, both ed by the “Ci .”  With the C that post‐pro tions.  Table  tions.    (#####) – 1 – See A 2 – Per F   2013)  floodway is  130 feet) an This results en cross secti erbank betw phy, as well  iminary DFIRM ONS CONSIDE  bridges are  ty‐Wide Stor City’s consen oject, 100‐ye 4 provides a Table 4:   – Parenthetical  Appendix B for c FEMA LOMR MT 125 125 126 127CrossingCroSandy Lake RoadFreeport Parkway  approximate d is shifted 1  in narrowin ions 9590 and een the same as the propo M floodway im ERATIONS  designed to m Water Man t, the bridges ear ultimate W a comparison 100‐Year WSE notation indica complete flood  T‐2 instructions (8000) 9233 (9475) (9494) (9526) (9590) 9890 (10120) (10130) (12420) 12539 567 (12540) 595 (12585) 661 (12615) 707 (12675) 12868 12957 (14600) oss Section SAN FREE C ely 10‐feet w 17 to 35 feet ng of the flo d 9890) and w e sections.  Th osed wider br mmediately d o pass the Ul nagement Stu s were design WSEL’s are lo  of Revised E   EL Comparison ates equivalent profile data  , tie‐in must be  Revised  Existing  (RE) Po Pro (P (ft)( 473.63 47 477.84 47 478.92 47 478.56 482.66 483.93 48 484.08 48 484.33 48 484.35 48 491.71 49 492.60 49 492.72 49 492.59 493.87 494.24 49 494.19 49 494.26 49 496.81 49 NDY LAKE ROAD BRID EPORT PARKWAY BRID Conditiona Sandy La wider than the t to the east, oodway on p widening of t his “shift” is a ridge structu downstream  timate Cond udy for the C ned with 1‐fo ower than in Existing and P n (Ultimate Flo section in the e e within 0.5 feet ost‐ oject  PP) Proje Impac Compar (PP‐R (ft) (ft) 3.63 0.00 77.84 0.00 78.80 ‐0.12 ‐‐ ‐‐ 80.31 ‐3.62 81.29 ‐2.79 82.5 ‐1.83 82.59 ‐1.76 91.71 0.00 92.19 ‐0.41 92.79 0.07 ‐‐ ‐‐ 93.32 ‐0.92 93.21 ‐0.98 93.30 ‐0.96 96.75 ‐0.06 GE DGE al Letter of ke Road and  e preliminary , immediately private lots lo he floodway  a result of th re.  The post of the propos itions, 100‐y City of Coppel oot of freeboa n revised exis Post‐Project 1 ows)1    effective FEMA  t of effective flo ct  ct  ison E) 0 0 2 2 9 3 6 0 1 7 2 8 6 6 f Map Revi Freeport Par P y DFIRM floo y upstream o ocated in th on the city‐o e newer and  t‐project floo sed structure year discharge l (Halff Assoc ard.  The mod sting conditio 100‐year WS model  ood elevations ision  rkway  Page 7  odway  of the  e left  owned  more  odway  e.    es, as  ciates;  deling  ons at  ELs at  CPL00243     Exhibit 2 floodplain   CONCL   Based on t   Hydraulic  Freeport  floodplain bridge stru   Furthermo necessary  (i.e. less th proposed    3‐02 (March 2 2B and 3B p ns.  LUSION  the analyses, a modeling ind Parkway will  .  At both loc uctures propo ore, changes i in order to m han one foot o improvement   2013)  provide comp approval of a C dicates that c have no adv cations, 100‐y osed.   in width and a make the effe of increase, an ts will not adve   parisons of  Conditional Le construction o verse impacts year flood elev alignment of t ective floodwa nd no negativ ersely impact  C the revised  etter of Map R of the propos s on the regu vations will b the effective f ay compliant w e surcharge u the floodway. Conditiona Sandy La existing and Revision by FEM sed improvem ulatory floodp be reduced as  floodway in t with current F upon encroach .  al Letter of ke Road and  d proposed  MA is request ments at San plain or the u  a result of th he vicinity of  FEMA standa hment).  Resu f Map Revi Freeport Par P 100‐year ult ted.  ndy Lake Road ultimate cond he wider and both projects rds and regul lts indicate th ision  rkway  Page 8  imate  d and  ditions   taller  s were  ations  at the  SANDY LAKE RD FREEPORT PKWYOAKBEND DRBEAL LN COTTONWOOD DRBRANCHWOOD TRLWINDING HOLLOW LNHALIFAX DR HALIFAX LN OAK GROVE LN EDINBURGH LN POST OAK DR BRICKNELL LN MANCHESTER LNGREENWICH LN A U T U M N W O O D L N FOREST RIDGE DR FOREST BEND DRCOPPELL RDHARTFORD CIRDARTM OU TH L N COPPELL RDSANDY LAKE RD PARKWAY BLVD121 HWYDENTON TAP RD121 SERVICE RDHEARTZ RDMOORE RDCOPPELL RDLODGE RDPARK VALLEY DR PHI LLI PS DRPATRIOT MINYARD FREEPORT PKWYCANYON DR GRAHAM DRWATERVIEW DRSHADOWCREST LNGIFFORD DROAK TRLPA R K V I E W P L NORTHPOINT DRQUAIL LN ALEX DR PECAN HOLLOW DR HALIFAX DR MARTEL LN BEECHWOOD LN OAKBEND DRDEFOREST RD HOOD DR L Y N D S IE D R LEE DR SANDY KNOLL DRACE LNGRACE LN SIMMONS DRCRIBBS DRWAVERLY LNAVALON RAVEN LN KYLE DRPLAZA BLVDLONDON WAY DICKENS DRHOLLY STWHISPERING HILLS DRB E A L L NTRADE CENTER DRFOREST RIDGE DR C O P P E R S T O N E T R L SHADYDALE LNHARWELL STWESTMINSTER WAY T H O M P S O N D R PARKWOOD NASH STTENNYSON PLHALIFAX LN OAK GROVE LN RO CKCREST DRFITNESS CT GRAYWOOD LN PHEASANT LNSTILL FOREST DRKINGSRIDGE DRGIBSON CTSUMMER DRBRAEWOOD DR KIRKLAND DR MANCHESTER LN121 HWY121 SERVICE RD121 SERVICE RDCotto n w ood Branch0 1,000 2,000 1 inch = 2,000 feet 0 600300 1 inch = 600 feet Cottonwood Branch Denton Creek Exhibit 1:Location Map Sandy Lake Road(Study Vicinity) Freeport Parkway(Study Vicinity) CLOMR: Sandy Lake and Freeport tnp tnp Exhibit 4:Annotated FIRM0400200 1 inch = 400 feet LIMITS OF REVISION tnp BBOOUULLEEVVAARRDD MMAAGGNNOOLLIIAANNCOOPERCOOPER CITY OF IRVING 480180 CITY OF IRVING 480180 CRESTSIDE DR.CRESTSIDE DR.4 7 7 4 7 7 FF RRIITTZZ CITY OF LEWISVILLECITY OF LEWISVILLE 530530COPPELLCOPPELLSADDLESADDLE ZONE XZONE X 501 501 480195480195 ZONEZONE LIMIT OF DETAILED STUDY LIMIT OF DETAILED STUDY Grapevine CreekGrapevine CreekCCRREEEEKKVVIIEEWW ZONEZONECCrreeeekk 513513ROADROADCOPPELLCOPPELL496496 CreekCreek LANELANE490490482 482 C O P P E L L C O P P E L L LAKELAKE HH SSPPAANNIISS HH BB OOUULLEE VVAA RRDD ZONE XZONE X AEAE ROYALROYALDRIVEDRIVE CITY OF COPPELL 480170 CITY OF COPPELL 480170 SO U T H W E S T E RNSOUTHWESTERN DDRR II VV EE ROADROAD ZONE AEZONE AE KINGSTONKINGSTONSTREETSTREETBB ZONE XZONE X ZONE XZONE X 4664665 0 9 5 0 9507507 4 6 9 4 6 9TTRRAADDEEIICT.CT.WW HHIILLLLSSAIRLINEAIRLINE 4 7 2 4 7 2 WINDHAMWINDHAMWWHHIISSPPEERRIINNGG ZONE AEZONE AE472472 PPLLAACCEEWW EE DDRRII VV EE ZONE XZONE X ROADROADCOVECOVECCOOPPPPEELLLLZONEZONE PARKPARK DRIVEDRIVE ZONE AEZONE AE (EL 470 )(EL 470 ) ZONE AEZONE AE ZONE XZONE X GG 480170480170 BridgeBridge LLAA NNEE R OY A L R OY A L XX Tributary G-1Tributary G-1 CCOOTTTTOONNWWOOOODD 5 2 6 5 2 6CCEENNTTEERR ZONE XZONE X DD RR II VV EE RROOAADD ZONE XZONE X ZONE XZONE XRROOAADDOOAAKK W PARKWAY BOULEVARDW PARKWAY BOULEVARD AAVV..DD DENTON COUNTY DALLAS COUNTY DENTON COUNTY DALLAS COUNTY ZONE AEZONE AE EE GG RR AAHH AA MM ZONE XZONE X DRIVEDRIVEDRIVEDRIVEZONE XZONE X 480195480195 P A R K WA Y P A R K WA Y OOAAKKLLAANNEE GGRROOVVEE DR.DR. 521521 483 483 BridgeBridge DRIVEDRIVE 507 507 5 0 6506 HAWKENHAWKEN PARKWAYPARKWAYGG PPAARRKKWW AA YY 5 2 1 5 2 1 PARKPARKCITY OF LEWISV ILLECITY OF LEWISV ILLE DRIVEDRIVE HHOOLLLLOOWW CCIIRRCCLLEEZONE XZONE X GREENWICHGREENWICHRROOAADDZONE X ZONE X WWRRAANNGGLLEERR 4994994 7 4 4 7 4 KELLYKELLY511511ZONE X ZONE X 4634634 8 2 4 8 2 SUMMERSUMMER480 598480598 498498SSZONE XZONE X ROADROAD GGIIBBSSOONNCITY O F COPPEL LCITY O F COPPEL L 534534SSTTAATTEEFFBEALBEAL LINELINE462462WWIINNDDIINNGGZONE AEZONE AE DDRRIIVVEE471 471 BridgeBridge CITY OF COPPELL 480170 CITY OF COPPELL 480170 GGAATTEEVV II EE WW GGAATTEEWWAAYY 480170480170 ENTERPRISEENTERPRISE523523EEMMOOSSSS L.L. 524524 485485 DRIVEDRIVE CIRCLECIRCLECC CHARLESTONCHARLESTON 501501488488DDRRIIVVEE SSZONE XZONE X ZONE X ZONE X COZBYCOZBYMANCHESTER LANEMANCHESTER LANELLAANNEE4 7 5 4 7 5 ZONE XZONE X TOWN OF FLOWER MO UNDTOWN OF FLOWER MO UND HARTFORDHARTFORDNN ZONE XZONE X CANYONCANYON CC ZONEZONE 465465ZONE XZONE X (EL 504)(EL 504)497497REGENTREGENT ZONE XZONE X ST R EE TSTREET CITY OF COPPELL 480170 CITY OF COPPELL 480170 NNOORRTTHHPPOOIINNTT 512512ZONE XZONE X R AIL R O ADRAILROAD CITY OF IRVING 480180 CITY OF IRVING 480180 SSTTRREEEETT Grapevine CreekGrapevine Creek ZONE XZONE X (EL 535)(EL 535)527527508508DD506506ROADROAD470470ZONE XZONE X DRIVEDRIVE 4 7 1 4 7 1 CulvertCulvert491491 PP LLAA NN TT AATTIIOONN ZONE XZONE X R O A D R O A D RROOAADD Denton Denton SSSAN DYSANDY HH AA LL IIFFAAXX 505505 KAYEKAYE TREE TRAILTREE TRAIL AVENUEAVENUECORPORATECORPORATECOURTCOURTFAIRVIEWFAIRVIEW BROOKSBROOKS ZONE AEZONE AEDDeennttoonn II ZONE XZONE X 4 7 8 4 7 8 FFRREEEEPPOORRTTTTRREEEE RR AA II LL RROOAADD468468BAYOUBAYOU493493Cottonwood Branch at Denton Cottonwood Branch at Denton BRICKNELLBRICKNELL4684685 1 1 5 1 1467467BETHELBETHEL 467467 R O A DROAD 514514TARRANT COUNTY DALLAS COUNTYTARRANT COUNTY DALLAS COUNTYDENTON COUNTY TARRANT COUNTY DENTON COUNTY TARRANT COUNTY ZONE XZONE X LANELANE BBLANELANE DDRRIIVVEE RR UU BB YY LANELANE HAMMONDHAMMOND510510XX 5 1 0 5 1 0 COUNTYCOUNTYCITY OF GR APEVINECITY OF GR APEVINE 533533NNZONE AEZONE AE ZONE X ZONE X 520520DRIVEDRIVEPPAATTRRIIOOTT464464CITY OF IRVINGCITY OF IRVING BB OO UULL EEVVAARRDD HH DDeennttoonnCCOOTTTTOONNWWOOOODDLLAAWWNNMOSS COURTMOSS COURT COTTONCOTTON 523523 ZONE XZONE X BridgeBridge ZONE AEZONE AE BBLLAANNEE472 472 CIRCLECIRCLEARCHERARCHER DDRR..EE HHAALLIIFFAAXX 528528EEXXCCHHAANNGGEEZONE XZONE X AA VV EE NNUUEE CITY O F COPPEL LCITY O F COPPEL L BridgeBridge ZONE XZONE X ZONE XZONE X CITY OF GRAPEVINECITY OF GRAPEVINE ZONE X ZONE X AEAE 4 9 5 4 9 5 LANELANEZONE XZONE X519519480777480777 ZONE A ZONE A 502502 4 8 6 4 8 6 DRIVEDRIVEDDRRIIVVEE STREETSTREETDRIVEDRIVE 532532HAZELWOODHAZELWOOD ZONE XZONE X ZONE X ZONE X CITY OF COPPELLCITY OF COPPELL 4 7 0 4 7 0 CITY OF COPPELLCITY OF COPPELL ROADROAD492492469469Cottonwood Branch at Denton Cottonwood Branch at DentonDRIVEDRIVE ZONE AEZONE AE CulvertCulvert LLAANNEE GGRRAAYYWWOOOODD ZONE XZONE X AASSHH LLEE YY 5 0 2502 SPANISHSPANISHCIRCLECIRCLE ZONE AEZONE AE BridgeBridge ZONE XZONE X N ROYAL LANEN ROYAL LANE496496 RRIIDDGGEE ZONE AEZONE AE COURTCOURTZONE XZONE X MINYARD DR.MINYARD DR. Tributary G-1 Tributary G-1 4 9 4 4 9 4 TIMBERVIEW ROADTIMBERVIEW ROAD 465465ZONE XZONE X BB 4 9 5495 DILLARDDILLARD ZONE AEZONE AE BridgeBridge LLAA NN EECCrr ee ee kk Grapevine CreekGrapevine Creek BU R N SBURNSOOAAKKBBEENNDD FORESTFOREST Grapevine CreekGrapevine Creek 508508LANELANE STREETSTREETIIBBUURRNNIINN GG LL AA NNEESTATESTATEBridgeBridge DRIVEDRIVE ZONE X ZONE X ZONE AEZONE AE F R E E P O R T F R E E P O R T D RIVED RIVE7030000 FT 7035000 FT 7040000 FT 7045000 FT 2410000 FT 2415000 FT 2420000 FT 2425000 FT 682000m E 683000m E 684000m E 685000m E 686000m E 3647000m N 3648000m N 3649000m N 3650000m N 3651000m N 3652000m N 97°03'45.00" 33°00'00.00" 97°03'45.00" 32°56'15.00"97°00'00.00" 32°56'15.00" 97°00'00.00" 33°00'00.00"JOINS PANEL 0030JOINS PANEL 0020JOINS PANEL 0005ZONE A ZONE AE ZONE AH ZONE AO ZONE AR ZONE A99 ZONE V ZONE VE ZONE X ZONE X ZONE D ~~~~~~~~~~513 (EL 987) A A ---------23 23 97°07'30", 32°22'30" 4275000mN 6000000 FT DX5510 M1.5 MAP REPOSITORIES To determine if flood insurance is available in this community, contact your insurance agent or call the National Flood Insurance Program at 1- 800- 638- 6620. Refer to Map Repositories list on Map Index EFFECTIVE DATE OF COUNTYWIDE FLOOD INSURANCE RATE MAP August 23, 2001 EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL MAP SCALE 1" = 1000' PANEL 0010L Notice to User: The shown below should be used when placing map orders; the Community Number shown above should be used on insurance applications for the subject community. Map Number CONTAINS: COMMUNITY NUMBER PANEL SUFFIX Federal Emergency Management Agency DALLAS COUNTY, TEXAS AND INCORPORATED AREAS COPPELL, CITY OF 480170 0010 L FLOWER MOUND, TOWN OF 480777 0010 L GRAPEVINE, CITY OF 480598 0010 L IRVING, CITY OF 480180 0010 L LEWISVILLE, CITY OF 480195 0010 L (SEE MAP INDEX FOR FIRM PANEL LAYOUT) This map is for use in administering the National Flood Insurance Program.It does not necessarily identify all areas subject to flooding, particularly from local community map repositorydrainage sources of small size. The should be consulted for possible updated or additional flood hazard information. Base Flood ElevationsTo obtain more detailed information in areas where floodways(BFEs) and/or have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the Flood Insurance Study (FIS) report that accompanies this FIRM. Users should be aware that BFEs shown on the FIRM represent rounded whole- foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS report should be utilized in conjunction with the FIRM for purposes of construction and/or floodplain management. Coastal Base Flood Elevations shown on this map apply only landward North American Vertical Datum of 1988 (NAVD 88).of 0.0'Users of this FIRM should be aware that coastal flood elevations are also provided in the Summary of Stillwater Elevations table in the Flood Insurance Study report for this jurisdiction. Elevations shown in the Summary of Stillwater Elevations table should be used for construction and/or floodplain management purposes when they are higher than the elevations shown on this FIRM. floodwaysBoundaries of the were computed at cross sections and interpolated between cross sections. The floodways were based on hydraulic considerations with regard to requirements of the National Flood Insurance Program.Floodway widths and other pertinent floodway data are provided in the Flood Insurance Study report for this jurisdiction. Certain areas not in Special Flood Hazard Areas may be protected by flood control structures. Refer to Section 2.4 "Flood Protection Measures"of the Flood Insurance Study report for information on flood control structures for this jurisdiction. projectionThe used in the preparation of this map was Texas State horizontal datumPlanenorth central zone (FIPSZONE 4202). The was NAD83, GRS1980 spheroid. Differences in datum, spheroid, projection or State Plane zones used in the production of FIRMs for adjacent jurisdictions may result in slight positional differences in map features across jurisdiction boundaries. These differences do not affect the accuracy of the FIRM. Flood elevations on this map are referenced to the North American Vertical Datum of 1988.These flood elevations must be compared to structure and vertical datum.ground elevations referenced to the same For information regarding conversion between the National Geodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988, visit the National Geodetic http://www.ngs.noaa.gov/Survey website at or contact the National Geodetic Survey at the following address: NGS Information Services NOAA, N/NGS12 National Geodetic Survey SSMC- 3, #9202 1315 East- West Highway Silver Spring, MD 20910- 3282 To obtain current elevation, description, and/or location information for bench marks shown on this map, please contact the Information Services Branch of the (301) 713- 3242,National Geodetic Survey at or visit its website at http://www.ngs.noaa.gov/. Base map information shown on this FIRM was provided in digital format by the North Central Texas Council of Governments (NCTCOG). This information was photogrammetrically compiled at a scale of at least 1:24,000 from aerial photography dated 2001. This map reflects more detailed and up- to- date stream channel configurations than those shown on the previous FIRM for this jurisdiction. The floodplains and floodways that were transferred from the previous FIRM may have been adjusted to conform to these new stream channel configurations. As a result, the Flood Profiles and Floodway Data tables in the Flood Insurance Study report (which contains authoritative hydraulic data) may reflect stream channel distances that differ from what is shown on this map. Corporate limits shown on this map are based on the best data available at the time of publication. Because changes due to annexations or de- annexations may have occurred after this map was published, map users should contact appropriate community officials to verify current corporate limit locations. Map IndexPlease refer to the separately printed for an overview map of the county showing the layout of map panels; community map repository addresses; and a Listing of Communities table containing National Flood Insurance Program dates for each community as well as a listing of the panels on which each community is located. Contact the FEMA Map Service Center at 1- 800- 358- 9616 for information on available products associated with this FIRM. Available products may include previously issued Letters of Map Change, a Flood Insurance Study report, and/or digital versions of this map. The FEMA Map Service Center may also be reached by Fax at 1- 800- 358- 9620 and its website at http://www.msc.fema.gov/. If you have questions about this map or questions concerning the National Flood Insurance Program in general, please call1- 877- FEMA MAP (1- 877- 336- 2627) or visit the FEMA website at http://www.fema.gov/. 111 BASE FLOOD FLOODING SOURCE FLOODWAY WATER SURFACE ELEVATION REGULATORY WITHOUT FLOODWAY WITH FLOODWAY INCREASE CROSS SECTION DISTANCE WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) FEET (NAVD 88) Cottonwood Branch at Denton A 3,8501 356 1,780 4.1 463.7 463.7 464.5 0.8 B 6,7101 587 2,554 2.9 470.1 470.1 471.1 1.0 C 11.3351 270 2,156 3.1 487.4 487.4 488.1 0.7 D 14,7051 123 1,411 4.0 495.1 495.1 495.8 0.7 E 22,5101 313 1,650 2.5 523.6 523.6 524.6 1.0 Cottonwood Creek of Grand Prairie A 5,1502 1,153 3,319 6.9 464.7 464.7 464.7 0.0 B 7,5402 710 7,517 3.0 469.7 469.7 469.9 0.2 C 8,8802 797 7,216 3.2 470.8 470.8 471.0 0.2 D 9,5002 812 7,549 2.8 471.9 471.9 472.1 0.2 E 10,1402 904 9,484 2.2 472.4 472.4 472.6 0.2 F 11,0202 819 7,047 3.0 473.2 473.2 473.4 0.2 G 13,0302 663 4,675 4.5 478.1 478.1 478.4 0.3 H 14,4242 1,153 4,785 4.3 482.2 482.2 482.3 0.1 I 15,6402 497 3,252 6.3 483.3 483.3 483.4 0.1 J 17,1602 539 4,304 3.1 485.9 485.9 486.2 0.3 K 18,7002 475 4,154 3.1 492.9 492.9 492.9 0.0 L 21,2402 641 3,253 3.9 496.2 496.2 496.4 0.2 M 22,0702 356 2,644 4.8 499.4 499.4 499.7 0.3 N 23,2502 342 2,317 5.5 503.7 503.7 504.0 0.3 O 24,3302 438 2,942 4.4 508.1 508.1 508.4 0.3 1Feet above confluence with Denton Creek 2Feet above confluence with Mountain Creek Lake FEDERAL EMERGENCY MANAGEMENT AGENCY DALLAS COUNTY, TX FLOODWAY DATA AND INCORPORATED AREAS TABLE 6 COTTONWOOD BRANCH AT DENTON – COTTONWOOD CREEK OF GRAND PRAIRIE 0500010000150002000025000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: Post-Project FW 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS FWCrit FWWS 100-YRCrit 100-YRGroundLOBROB56867108000923398901047011030118801242012957146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft HEC-RAS Plan: Post-Project River: RIVER-1 Reach: Reach-1 Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 1 100-YR 461.90 462.95 466.74 1914.60 2362.08 3023.32 1157.00 1183.00 Reach-1 1 FW 461.96 0.06 463.05 376.50 1975.96 2367.81 2956.22 963.50 1157.00 1183.00 1376.50 Reach-1 2 100-YR 462.13 463.25 109.48 7300.00 1103.00 1232.00 Reach-1 2 FW 462.16 0.03 463.42 95.12 7300.00 854.00 1103.00 1232.00 1210.00 Reach-1 3 100-YR 462.29 463.37 110.14 7300.00 1103.00 1232.00 Reach-1 3 FW 462.62 0.33 463.61 111.43 7300.00 1035.00 1103.00 1232.00 1350.00 Reach-1 4 100-YR 462.81 463.56 303.92 232.09 6919.46 148.45 1122.00 1233.00 Reach-1 4 FW 463.11 0.31 463.78 270.56 259.36 6801.75 238.89 1025.00 1122.00 1233.00 1350.00 Reach-1 5 100-YR 464.61 465.81 387.74 2313.83 3238.80 1747.38 1178.00 1210.00 Reach-1 5 FW 464.63 0.02 466.03 270.00 2402.50 3388.14 1509.36 1030.00 1178.00 1210.00 1300.00 Reach-1 6 100-YR 467.36 467.61 558.62 2431.12 2562.30 2306.58 1177.00 1230.00 Reach-1 6 FW 467.65 0.29 467.95 346.00 2665.52 2765.96 1868.52 1063.00 1177.00 1230.00 1409.00 Reach-1 7 100-YR 468.05 468.14 858.09 4282.00 791.56 2226.44 1405.00 1432.00 Reach-1 7 FW 468.48 0.43 468.65 509.00 3872.40 1108.04 2319.56 1115.00 1405.00 1432.00 1624.00 Reach-1 8 100-YR 468.40 468.54 861.44 698.82 1772.16 4829.02 1369.00 1425.00 Reach-1 8 FW 468.98 0.58 469.20 511.00 552.03 2146.50 4601.47 1289.00 1369.00 1425.00 1800.00 Reach-1 6710 100-YR 470.13 470.29 770.68 666.52 1135.52 5497.96 1250.00 1286.00 Reach-1 6710 FW 470.79 0.66 470.96 587.00 972.11 1236.70 5091.19 1083.00 1250.00 1286.00 1670.00 Reach-1 8000 100-YR 473.28 473.47 700.49 509.89 973.79 5816.31 2817.00 2848.00 Reach-1 8000 FW 473.66 0.38 473.89 510.00 248.04 1067.15 5984.81 2750.00 2817.00 2848.00 3260.00 Reach-1 9233 100-YR 477.35 477.68 461.04 9.25 1415.12 5275.63 1225.00 1255.00 Reach-1 9233 FW 477.85 0.51 478.34 299.38 34.31 1697.38 4968.31 1200.00 1225.00 1255.00 1500.00 Reach-1 9475 100-YR 478.30 479.36 140.00 701.51 3856.62 2141.87 1435.81 1477.72 Reach-1 9475 FW 478.91 0.61 480.12 110.00 166.25 4254.28 2279.48 1430.00 1435.81 1477.72 1540.00 Reach-1 9510 BR D 100-YR 478.45 479.46 134.00 888.76 3341.37 2469.87 1435.81 1477.72 Reach-1 9510 BR D FW 479.01 0.56 480.20 104.00 349.44 3707.17 2643.39 1430.00 1435.81 1477.72 1540.00 Reach-1 9510 BR U 100-YR 479.25 480.01 134.00 2613.25 2783.05 1303.70 1300.74 1333.85 Reach-1 9510 BR U FW 480.17 0.92 480.77 134.00 2629.91 2707.38 1362.71 1230.00 1300.74 1333.85 1377.00 Reach-1 9590 100-YR 479.51 480.12 140.00 2837.26 2440.80 1421.94 1300.74 1333.85 Reach-1 9590 FW 480.36 0.84 480.85 140.00 2862.14 2358.69 1479.17 1230.00 1300.74 1333.85 1377.00 Reach-1 9890 100-YR 480.38 481.38 380.48 1820.47 4060.85 818.69 1262.00 1307.00 Reach-1 9890 FW 480.93 0.55 481.91 238.00 1946.09 4175.25 578.65 1126.00 1262.00 1307.00 1364.00 Reach-1 10120 100-YR 481.93 482.73 326.60 1824.87 4821.95 53.18 1184.00 1247.00 Reach-1 10120 FW 482.39 0.47 483.03 270.00 2110.30 4580.06 9.65 980.00 1184.00 1247.00 1250.00 Reach-1 10130 100-YR 482.00 482.77 329.42 1861.91 4780.65 57.45 1184.00 1247.00 Reach-1 10130 FW 482.44 0.44 483.07 269.00 2129.26 4556.80 13.94 982.00 1184.00 1247.00 1251.00 Reach-1 10210 100-YR 482.59 484.24 284.06 431.05 5101.46 1167.49 1175.00 1231.00 Reach-1 10210 FW 482.59 0.00 484.88 142.00 336.07 5709.51 654.42 1134.00 1175.00 1231.00 1276.00 Reach-1 10470 100-YR 485.02 485.48 255.33 214.71 4687.42 1797.87 1202.00 1284.00 Reach-1 10470 FW 485.74 0.72 486.27 194.96 323.06 5259.65 1117.28 1143.00 1202.00 1284.00 1343.00 Reach-1 10655 100-YR 485.44 485.97 279.26 1353.10 4276.40 1070.50 1168.00 1231.00 Reach-1 10655 FW 486.16 0.72 486.73 180.00 1102.92 4585.94 1011.13 1109.50 1168.00 1231.00 1289.50 Reach-1 10830 100-YR 485.86 486.68 301.60 1116.17 4662.16 921.67 1200.00 1262.00 Reach-1 10830 FW 486.57 0.71 487.32 180.00 997.25 4680.92 1021.82 1141.00 1200.00 1262.00 1321.00 Reach-1 11030 100-YR 486.98 487.37 305.31 2929.84 3768.55 1.61 1217.00 1287.00 Reach-1 11030 FW 487.31 0.33 488.06 152.15 1760.26 4931.41 8.33 1152.00 1217.00 1287.00 1352.00 Reach-1 11230 100-YR 487.53 487.68 435.47 3052.93 3134.71 512.36 1480.00 1550.00 Reach-1 11230 FW 488.27 0.74 488.45 270.00 2533.70 3466.34 699.96 1345.00 1480.00 1550.00 1615.00 Reach-1 11380 100-YR 487.59 487.90 400.59 1524.53 3909.77 265.70 1284.00 1390.00 Reach-1 11380 FW 488.38 0.79 488.62 296.00 1846.21 3795.53 58.26 1104.00 1284.00 1390.00 1400.00 Reach-1 11880 100-YR 488.76 489.33 276.97 693.28 4613.23 393.49 1222.00 1306.00 Reach-1 11880 FW 489.18 0.42 489.74 226.00 859.05 4760.62 80.33 1090.00 1222.00 1306.00 1316.00 Reach-1 12420 100-YR 490.38 491.17 201.84 212.81 5051.98 435.21 162.00 230.00 HEC-RAS Plan: Post-Project River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 12420 FW 490.67 0.28 491.49 108.00 66.80 5225.27 407.93 155.00 162.00 230.00 263.00 Reach-1 12539 100-YR 490.91 491.49 151.68 2397.48 2521.30 781.21 360.00 385.00 Reach-1 12539 FW 491.18 0.27 491.81 111.00 2592.37 2574.04 533.59 290.00 360.00 385.00 401.00 Reach-1 12567 100-YR 491.31 491.62 172.50 2800.08 2463.47 436.45 310.00 339.50 Reach-1 12567 FW 491.65 0.33 491.95 156.00 2904.95 2481.76 313.29 204.00 310.00 339.50 360.00 Reach-1 12600 BR D 100-YR 491.29 491.66 164.82 2466.52 2749.30 484.17 310.00 339.50 Reach-1 12600 BR D FW 491.63 0.34 491.98 151.00 2526.49 2732.86 440.65 204.00 310.00 339.50 360.00 Reach-1 12600 BR U 100-YR 491.67 491.76 170.66 1.84 5698.16 182.35 390.85 Reach-1 12600 BR U FW 491.97 0.30 492.07 146.15 2.23 5697.77 167.00 182.35 390.85 332.00 Reach-1 12707 100-YR 491.68 491.76 177.55 3.32 5696.68 182.35 390.85 Reach-1 12707 FW 491.98 0.30 492.08 153.00 4.02 5695.98 167.00 182.35 390.85 332.00 Reach-1 12868 100-YR 491.55 491.85 303.89 37.00 3230.57 2432.43 120.00 175.00 Reach-1 12868 FW 491.87 0.31 492.16 256.00 2882.17 2817.83 135.00 120.00 175.00 391.00 Reach-1 12957 100-YR 491.61 492.06 338.87 558.78 5052.44 88.78 221.00 338.00 Reach-1 12957 FW 491.94 0.33 492.35 278.00 524.39 5030.27 145.35 161.00 221.00 338.00 439.00 Reach-1 14600 100-YR 495.40 495.59 418.45 3591.90 1744.87 363.23 1676.00 1721.00 Reach-1 14600 FW 495.81 0.41 496.09 223.00 3717.54 1982.46 1498.00 1676.00 1721.00 1721.00 Reach-1 17970 100-YR 505.71 506.82 383.54 1676.12 3391.80 632.07 1443.00 1502.00 Reach-1 17970 FW 506.18 0.47 507.55 190.00 988.54 3829.60 881.86 1385.00 1443.00 1502.00 1575.00 Reach-1 18085 100-YR 507.00 507.28 236.74 83.48 5595.48 21.04 1281.00 1437.00 Reach-1 18085 FW 507.75 0.76 508.02 150.00 26.34 5673.66 1275.00 1281.00 1437.00 1425.00 Reach-1 18125 100-YR 507.05 507.32 212.79 57.93 5627.62 14.46 1000.00 1150.00 Reach-1 18125 FW 507.81 0.76 508.05 150.00 5700.00 1000.00 1000.00 1150.00 1150.00 Reach-1 18670 100-YR 507.64 508.12 148.75 5700.00 1000.00 1150.00 Reach-1 18670 FW 508.28 0.64 508.68 145.00 5700.00 1002.00 1000.00 1150.00 1147.00 Reach-1 18786 100-YR 507.93 508.51 137.67 5700.00 1017.00 1191.00 Reach-1 18786 FW 508.49 0.56 508.99 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR D 100-YR 507.93 508.52 137.71 5700.00 1017.00 1191.00 Reach-1 18835 BR D FW 508.49 0.56 509.00 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR U 100-YR 508.38 508.97 137.25 5700.00 1017.00 1191.00 Reach-1 18835 BR U FW 508.84 0.47 509.37 134.66 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18884 100-YR 508.38 508.98 137.30 5700.00 1017.00 1191.00 Reach-1 18884 FW 508.85 0.46 509.37 134.68 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18969 100-YR 508.75 509.28 145.59 5700.00 1000.00 1150.00 Reach-1 18969 FW 509.15 0.40 509.62 145.00 5700.00 1002.50 1000.00 1150.00 1147.50 Reach-1 19609 100-YR 510.67 511.44 136.23 5700.00 1000.00 1150.00 Reach-1 19609 FW 510.79 0.12 511.53 135.00 5700.00 1007.50 1000.00 1150.00 1142.50 Reach-1 19659 100-YR 510.77 511.81 125.23 5700.00 1246.00 1399.00 Reach-1 19659 FW 510.87 0.10 511.88 125.00 5700.00 1260.00 1246.00 1399.00 1385.00 Reach-1 19709 100-YR 510.99 513.29 101.87 5700.00 1226.00 1376.00 Reach-1 19709 FW 510.99 0.00 513.29 101.87 5700.00 1226.00 1226.00 1376.00 1376.00 Reach-1 19759 100-YR 512.21 514.55 100.52 5700.00 958.00 1067.00 Reach-1 19759 FW 512.21 0.00 514.55 100.52 5700.00 958.00 958.00 1067.00 1067.00 Reach-1 19794 100-YR 514.03 516.19 113.76 5700.00 1388.00 1565.00 Reach-1 19794 FW 513.99 -0.04 516.19 111.17 5700.00 1400.00 1388.00 1565.00 1540.00 Reach-1 19944 100-YR 517.21 518.73 282.16 656.74 3849.12 1194.14 1377.00 1416.00 Reach-1 19944 FW 517.14 -0.07 518.66 227.00 659.84 3811.10 1229.06 1303.00 1377.00 1416.00 1530.00 Reach-1 20069 100-YR 519.00 519.51 354.37 1358.78 3000.79 1340.44 1241.00 1278.00 Reach-1 20069 FW 518.76 -0.24 519.55 133.02 1059.72 3377.12 1263.17 1197.13 1241.00 1278.00 1330.15 Reach-1 20279 100-YR 519.71 519.81 416.40 3643.78 1930.91 125.31 1340.00 1401.00 Reach-1 20279 FW 519.81 0.09 519.95 228.92 3603.26 2096.74 1172.08 1340.00 1401.00 1401.00 Reach-1 20479 100-YR 519.72 520.00 403.47 1283.81 2538.07 1878.12 1280.00 1324.00 Reach-1 20479 FW 519.76 0.04 520.24 187.19 1025.98 3035.40 1638.62 1202.68 1280.00 1324.00 1389.87 HEC-RAS Plan: Post-Project River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 20779 100-YR 520.32 520.54 454.41 3953.96 1577.21 168.84 1383.00 1413.00 Reach-1 20779 FW 520.63 0.31 521.00 197.02 3931.89 1768.11 1215.98 1383.00 1413.00 1413.00 Reach-1 22510 100-YR 523.35 523.57 750.11 2119.24 1505.89 2074.88 1755.00 1779.00 Reach-1 22510 FW 524.21 0.86 524.52 313.00 2620.62 1702.05 1377.33 1549.00 1755.00 1779.00 1862.00 EFFECTIVE HEC‐2 MODEL (FEMA DATA  REQUEST)EFFECTIVE HEC‐2 MODELEFFECTIVE HEC‐2  MODEL 1******************************************** *************************************** * HEC-2 WATER SURFACE PROFILES * * U.S. ARMY CORPS OF ENGINEERS * * * * HYDROLOGIC ENGINEERING CENTER * * Version 4.6.2; May 1991 * * 609 SECOND STREET, SUITE D * * * * DAVIS, CALIFORNIA 95616-4687 * * RUN DATE 18AUG11 TIME 16:03:38 * * (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 1 18AUG11 16:03:38 PAGE 1 THIS RUN EXECUTED 18AUG11 16:03:38 ************************************* HEC-2 WATER SURFACE PROFILES Version 4.6.2; May 1991 ************************************* T1 COTTONWOOD BRANCH MASTER DRAINAGE PLAN T2 100 YEAR FREQUENCY FLOOD CORRECTED EFFECTIVE MODEL (FLOODWAY) T3 CITY OF COPPELL, TEXAS (CBENC1.HC2) 5/11/94 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ 0. 4. 0. 0. 0 0. 0. 0. 463.39 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 1.0 0. -1. J3 VARIABLE CODES FOR SUMMARY PRINTOUT 110. 200. J5 LPRNT NUMSEC ********REQUESTED SECTION NUMBERS******** -10. QT 9. 4500. 6400. 7300. 9400. 7300. 7300. 7300. 7300. 7300. NC .055 .055 .045 .1 .3 X1 32816. 17. 1157. 1183. 95. 80. 91. GR 459. 1000. 459.8 1073. 459.8 1157. 452.2 1169. 452.2 1179. GR 459.8 1183. 460.4 1195. 460. 1204. 459. 1255. 458.7 1274. GR 459. 1328. 460. 1373. 461. 1438. 462. 1470. 463. 1486. GR 464. 1500. 465. 1508. ET 7.1 854. 1210. X1 32916. 22. 1000. 1035. 100. 100. 100. GR 458. 854. 458. 890. 459. 935. 460. 959. 461. 975. GR 462. 986. 462.9 1000. 461. 1008. 452.8 1017. 452.2 1032. GR 459.5 1035. 460. 1060. 461. 1126. 460. 1195. 459. 1200. GR 459. 1222. 460. 1252. 461. 1345. 462. 1362. 463. 1385. GR 464. 1400. 465. 1416. ET 7.1 1035. 1350. X1 33016. 22. 1152. 1183. 100. 100. 100. GR 458.8 1000. 459. 1070. 460. 1098. 461. 1120. 464.2 1140. GR 464.4 1152. 452.2 1166. 451.9 1172. 452.2 1174. 460.8 1183. GR 460. 1213. 459.6 1258. 459.4 1329. 459. 1345. 459. 1400. GR 459. 1411. 460. 1412. 461. 1488. 462. 1538. 463. 1580. GR 464. 1600. 465. 1620. 1 18AUG11 16:03:38 PAGE 2 ET 7.1 1025. 1350. X1 33116. 16. 1152. 1190. 100. 100. 100. GR 459.2 1000. 459. 1057. 459.8 1122. 464.3 1139. 464.1 1152. GR 452.9 1169. 452.7 1175. 452.5 1177. 460.4 1190. 460.3 1257. GR 459.8 1303. 461. 1315. 461. 1460. 461. 1500. 462. 1520. GR 465. 1530. ET 7.1 1030. 1300. X1 33560. 16. 1178. 1210. 380. 470. 444. GR 466. 1000. 465. 1008. 463. 1017. 462. 1019. 461.4 1050. GR 462. 1111. 462. 1178. 460. 1183. 454.5 1189. 454.1 1198. GR 454.3 1206. 462. 1210. 463. 1345. 464. 1368. 465. 1390. GR 466. 1400. ET 7.1 1063. 1409. X1 34075. 38. 1188. 1230. 505. 520. 515. GR 467.5 1000. 467.0 1006. 466.0 1010. 465.0 1016. 463.0 1021. GR 462.0 1032. 461.0 1050. 460.0 1064. 459.0 1075. 459.0 1085. GR 460.0 1096. 461.0 1100. 464.0 1114. 464.0 1163. 464.0 1188. GR 460.0 1193. 455.8 1196. 455.6 1205. 455.8 1218. 460.0 1220. GR 462.0 1230. 463.0 1262. 464.0 1320. 465.0 1408. 466.0 1418. GR 466.0 1440. 466.0 1448. 470. 1458. 470. 1463. 467. 1479. GR 467. 1490. 465. 1502. 464. 1505. 464. 1552. 465. 1590. GR 466. 1600. 467. 1618. 469. 1637. ET 7.1 1115. 1624. X1 34472. 37. 1405. 1432. 460. 350. 397. GR 469.5 959. 468. 976. 466. 986. 464.2 993. 462. 1111. GR 462. 1161. 464.2 1181. 464. 1220. 465. 1230. 466. 1255. GR 466. 1265. 465. 1280. 464. 1303. 464. 1372. 465. 1395. GR 466. 1399. 466. 1405. 465. 1410. 460. 1414. 457.3 1416. GR 457.3 1425. 460. 1427. 465. 1432. 465. 1441. 464. 1500. GR 464. 1641. 465. 1658. 467. 1663. 467. 1670. 467. 1683. GR 468. 1691. 468. 1700. 465. 1717. 465. 1802. 466. 1815. GR 467. 1827. 470. 1867. ET 7.1 1289. 1800. X1 34822. 22. 1369. 1425. 370. 260. 350. GR 472. 1070. 470. 1200. 468. 1212. 466. 1220. 466. 1331. GR 466. 1369. 464. 1377. 462. 1385. 460. 1390. 458.2 1395. GR 458.2 1405. 460. 1410. 462. 1415. 464. 1420. 466. 1425. GR 466. 1563. 464. 1590. 464. 1635. 464. 1825. 466. 1970. GR 468. 2045. 470. 2175. NC .065 0.06 0.05 0.1 0.3 ET 7.1 1083. 1670. X1 6710. 31. 1250. 1286. 1100. 750. 1165. GR 474.2 866. 474. 916. 474.1 926. 474.2 955. 474. 966. GR 472.8 1016. 472.6 1066. 472.2 1077. 466.9 1093. 467.5 1122. GR 468.0 1172. 468.7 1222. 468.7 1250. 462.6 1257. 460.6 1266. GR 462.3 1275. 469.4 1286. 467.7 1315. 467.4 1322. 466.3 1372. GR 466.3 1472. 466.3 1522. 465.9 1572. 465.9 1622. 466.8 1672. GR 466. 1722. 466.8 1772. 468.6 1822. 471.0 1872. 473.0 1922. 1 18AUG11 16:03:38 PAGE 3 GR 475. 1937. ET 7.1 2693. 3202. X1 8000. 35. 2817. 2848. 990. 1060. 1335. GR 479.3 1990. 478.4 2040. 478.3 2090. 477.5 2140. 477.1 2190. GR 477. 2240. 476.7 2290. 476.6 2340. 476.4 2440. 476.2 2490. GR 475.9 2540. 476.8 2547. 474.8 2558. 474.5 2590. 474.4 2640. GR 474.3 2656. 472.6 2690. 470.1 2700. 472.1 2800. 472.3 2817. GR 465.3 2829. 463.9 2840. 472.2 2848. 471.3 2900. 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 ET 7.1 1268 1497 X1 9430 25 1268 1426 1340 1250 1430 GR 498.5 841 496.1 891 494.3 941 488.0 991 482.8 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 0.5 ET 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 481.6 1300 GR 480.4 1301 478.8 1302 474.3 1307 473.9 1314 468.8 1322 GR 467.9 1325 480.4 1325 480.4 1327 467.9 1327 467.8 1356 GR 480.4 1356 480.4 1358 471.3 1358 472.7 1366 478.7 1380 GR 480.3 1382 481.6 1382 481.5 1400 481.2 1500 481.4 1600 GR 482.6 1700 484.3 1800 486.4 1900 492.1 2000 ET 7.1 1300 1382 X1 9526 32 32 32 X2 1 NC .06 .07 .05 ET 7.1 1268 1600 X1 9590 15 1268 1426 64 64 64 GR 488.4 1000 481.3 1100 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 .06 .075 .05 .1 .3 ET 200.2 X1 10120 15 1180 1273 530 510 530 GR 490.00 850 482.42 1000. 482.38 1047 481.32 1070 480.43 1110 GR 479.78 1146 479.47 1180 477.01 1188 469.78 1207 468.53 1217 GR 478.15 1231 481.03 1273 481.22 1295 486.94 1348 490.83 1385 1 18AUG11 16:03:38 PAGE 4 ET 200.2 X1 10120 15 1180 1273 10 10 10 GR 490.00 850 482.42 1000. 482.38 1047 481.32 1070 480.43 1110 GR 479.78 1146 479.47 1180 477.01 1188 469.78 1207 468.53 1217 GR 478.15 1231 481.03 1273 481.22 1295 486.94 1348 490.83 1385 ET 200.2 X1 10210 19 1180 1231 80 90 80 GR 490.0 850 483.42 1000. 483.38 1047 482.32 1070 481.43 1110 GR 480.78 1146 480.47 1180 478.26 1188 468.66 1197 468.86 1205 GR 469.30 1211 477.72 1222 480.05 1227 480.18 1231 479.48 1250 GR 479.07 1294 481.77 1336 483.38 1360 489.38 1378 NC 0.055 ET 200.2 X1 10470 19 1202 1284 350 180 260 GR 497.35 1000 494.23 1035 491.02 1089 490.35 1115 488.34 1126 GR 483.27 1169 482.07 1187 481.29 1202 469.31 1214 469.57 1227 GR 473.51 1238 478.42 1252 480.77 1284 480.14 1304 480.91 1322 GR 480.41 1363 481.01 1399 486.75 1414 489.75 1423 ET 180.2 X1 10655 16 1168 1231 150 180 185 GR 486.96 1000 486.12 1019 486.09 1039 482.21 1076 481.34 1106 GR 480.61 1142 481.27 1168 478.22 1186 471.32 1204 470.63 1219 GR 482.03 1231 481.10 1256 481.99 1306 484.58 1320 485.54 1325 GR 490.54 1340 ET 180.2 X1 10830 16 1200 1262 130 185 175 GR 489.22 1000 486.96 1040 485.40 1080 484.16 1100 483.17 1123 GR 482.13 1162 482.23 1200 480.47 1220 471.18 1228 471.97 1234 GR 473.19 1247 481.91 1262 482.04 1286 484.76 1352 485.93 1371 GR 490.56 1385 ET 200.2 X1 11030 19 1217 1287 150 210 200 GR 490.0 965 486.46 1000 483.05 1065 482.05 1114 481.53 1156 GR 481.51 1192 481.58 1217 479.11 1224 474.21 1232 472.80 1242 GR 471.51 1243 471.01 1254 475.11 1257 477.21 1263 484.83 1271 GR 486.51 1287 487.01 1301 492.51 1359 500.30 1448 ET 7.1 1345 1615 X1 11230 13 1480 1550 190 290 260 GR 500 1000 498 1040 492 1120 490 1150 482 1290 GR 480 1480 472.5 1500 480 1550 482 1570 490 1655 GR 492 1685 494 1710 500 1800 1 18AUG11 16:03:38 PAGE 5 NC 0.075 QT 9 3600 5100 5700 7300 5700 5700 5700 5700 5700 X1 11380 21 1284 1390 150 150 150 GR 492.0 1000 488.70 1055 485.87 1115 484.20 1165 483.46 1210 GR 483.23 1248 484.50 1266 484.46 1284 482.74 1303 479.55 1327 GR 473.10 1336 471.80 1344 472.07 1351 482.89 1359 483.55 1371 GR 484.56 1390 484.79 1420 486.92 1469 488.70 1496 489.97 1529 GR 490.85 1544 X1 11880 17 1222 1306 440 480 500 GR 493.43 1000 489.50 1080 486.53 1141 485.74 1196 484.97 1222 GR 476.26 1233 471.78 1236 473.72 1245 476.26 1251 480.04 1263 GR 483.97 1275 484.46 1287 485.44 1306 485.13 1340 486.71 1355 GR 489.57 1379 492.86 1411 X1 12420 21 1157 1246 430 490 540 GR 495.90 1000 498.57 1026 495.59 1046 491.08 1068 489.64 1092 GR 487.42 1123 487.11 1147 488.86 1157 487.21 1164 482.56 1173 GR 482.53 1183 477.92 1193 477.16 1201 474.83 1206 474.52 1210 GR 475.34 1215 487.04 1228 488.55 1246 489.06 1309 492.51 1356 GR 493.74 1365 ET 7.1 1373 1537 X1 12540 15 1458 1538 160 80 120 GR 504.4 1000 500.7 1100 497.0 1200 495.8 1296 488.0 1317 GR 487.9 1400 485.4 1458 474.9 1475 475.3 1485 480.4 1493 GR 489.6 1538 490.0 1600 492.9 1700 497.1 1800 504.3 1900 NC 0.02 0.02 0.02 0.3 0.5 ET 79.2 X1 12585 29 1417 1522 45 45 45 BT 3 1417 492.5 491.6 1470 493.0 491.6 1522 492.6 491.6 GR 504.4 1000 500.3 1100 496.5 1200 493.5 1300 492.3 1400 GR 492.5 1417 492.6 1428 491.5 1428 489.5 1428 480.7 1449 GR 479.6 1454 491.6 1454 491.6 1456 479.6 1456 478.9 1462 GR 474.7 1470 474.1 1484 491.6 1484 491.6 1486 477.0 1486 GR 489.4 1511 491.6 1511 492.7 1511 492.6 1522 491.7 1600 GR 493.5 1700 497.3 1800 502.6 1900 508.2 2000 ET 79.2 X1 12615 30 30 30 X2 1 NC .06 .07 .05 ET 7.1 1373 1538 X1 12675 15 1458 1538 60 60 60 GR 504.4 1000 500.7 1100 497.0 1200 495.8 1296 488.0 1317 GR 487.9 1400 485.4 1458 474.9 1475 475.3 1485 480.4 1493 GR 489.6 1538 490.0 1600 492.9 1700 497.1 1800 504.3 1900 1 18AUG11 16:03:38 PAGE 6 NC .06 .075 .05 .1 .3 ET 7.1 1498 1721 X1 14600 20 1676 1721 1825 1575 1925 GR 516.9 1000 512.5 1100 508.5 1200 504.5 1302 490.0 1345 GR 499.0 1400 488.8 1500 490.8 1600 489.8 1676 487.0 1685 GR 486.4 1713 490.0 1721 495.0 1800 503.4 1900 507.8 1938 GR 505.6 1956 506.5 2000 513.3 2100 517.7 2135 519.2 2200 ET 7.1 1385 1575 X1 17970 14 1443 1499 1620 2450 3370 GR 510 1010 507 1135 504 1293 503 1443 502 1457 GR 499 1462 499 1468 499 1479 497 1481 502 1499 GR 504 1553 505 1578 510 1640 512 1673 NC .06 .06 .045 .2 .4 ET 7.1 1275 1425 X1 18085 13 1281 1437 115 115 115 GR 513 1000 512 1140 510 1159 509 1191 504 1281 GR 503 1298 500 1312 495.4 1331 495.4 1390 500 1411 GR 503 1424 505 1437 510 1504 ET 7.1 1000 1150 X1 18125 12 1000 1150 40 40 40 GR 513 724 512 875 510 898 505 986 505 1000 GR 495.8 1038 495.8 1113 505 1150 505 1154 507 1162 GR 510 1204 512 1242 ET 7.1 1002 1147 X1 18670 12 1000 1150 525 565 545 GR 514 767 513 872 512 976 510 986 507.8 1000 GR 498.4 1038 498.4 1113 507.8 1150 510 1162 512 1168 GR 513 1239 514 1299 ET 145.2 X1 18786 27 1017 1191 116 116 116 BT 2 1017 517.2 512 1191 517.2 510.2 GR 512.3 1016 512 1017 505.1 1045 512.1 1045 512.1 1047 GR 504.5 1047 499 1069 499 1075 511.8 1075 511.8 1077 GR 499 1077 499 1106 511.5 1106 511.5 1108 499 1108 GR 499 1136 511.2 1136 511.2 1138 499 1138 499 1144 GR 504.5 1167 510.9 1167 510.9 1169 505.1 1169 510.2 1191 GR 510.2 1197 510.6 1197 ET 145.2 X1 18884 27 1017 1191 98 98 98 BT 2 1017 517.2 512.5 1191 517.2 510.7 GR 512.8 1016 512.5 1017 505.6 1045 512.3 1045 512.5 1047 GR 505 1047 499.5 1069 499.5 1075 512.3 1075 512.3 1077 GR 499.5 1077 499.5 1106 512 1106 512 1108 499.5 1108 GR 499.5 1136 511.7 1136 511.7 1138 499.5 1138 499.5 1144 GR 505 1167 511.4 1167 511.4 1169 505.6 1169 510.7 1191 GR 510.7 1197 511.5 1197 1 18AUG11 16:03:38 PAGE 7 ET 7.1 1002.5 1147.5 X1 18969 13 1000 1150 85 85 85 GR 515 788 514 882 513 943 512 986 510 994 GR 509.3 1000 499.9 1038 499.9 1113 509.3 1150 510 1156 GR 512 1164 513 1213 515 1314 ET 7.1 1007.5 1142.5 X1 19609 11 1000 1150 660 620 640 GR 520 730 517 863 515 982 514 995 512.4 1000 GR 503 1038 503 1113 512.4 1150 515 1161 520 1194 GR 525 1244 ET 125.2 X1 19659 13 1246 1399 50 50 50 GR 520 1000 518 1062 516 1189 515 1241 514.2 1246 GR 510 1263 503.3 1290 503.3 1351 510 1382 514.2 1399 GR 515 1405 520 1438 525 1490 ET 7.1 1226 1376 X1 19709 13 1226 1376 50 50 50 GR 520 1000 517 1098 516 1181 515 1226 512 1240 GR 510 1252 503.6 1276 503.6 1310 509 1330 510 1341 GR 515 1376 520 1411 525 1461 NC .06 .075 .05 .1 .3 ET 7.1 958 1067 X1 19759 11 958 1067 50 50 50 GR 520 728 517 827 515 950 513 958 503.8 1000 GR 503.8 1010 513 1067 515 1086 520 1126 525 1175 GR 530 1220 QT 9 3600 5100 5700 7300 5700 5700 5700 5700 5700 ET 7.1 1400 1540 X1 19794 15 1388 1565 35 35 35 GR 524 1038 518 1260 517 1290 516 1388 515 1424 GR 510 1448 508 1463 503.9 1473 503.9 1479 506 1487 GR 509 1491 514 1542 516 1565 518 1591 522 1627 ET 7.1 1303 1530 X1 19944 14 1377 1416 150 150 150 GR 525.4 1000 522.6 1100 520.9 1200 516.3 1300 513.8 1377 GR 505.8 1395 505.6 1400 506.3 1404 513 1416 515 1500 GR 517.8 1579 521 1600 533.7 1690 533.9 1700 ET 10.41 X1 20069 12 1241 1278 180 150 125 GR 524 1000 520 1083 516 1162 514 1221 510 1241 GR 505.8 1257 511 1278 514 1329 515 1362 519 1414 GR 519 1457 525 1594 1 18AUG11 16:03:38 PAGE 8 X1 20279 15 1340 1401 260 130 210 GR 521 1000 519 1037 517 1089 514 1141 510 1215 GR 510 1247 513 1262 513 1340 510 1357 506 1366 GR 510 1385 514 1401 516 1418 521 1448 523 1474 X1 20479 13 1280 1324 75 140 200 GR 522 1000 518 1105 517 1166 515 1280 510 1288 GR 506.1 1291 508 1300 510 1311 512 1324 514 1403 GR 517 1439 520 1466 525 1500 X1 20779 15 1383 1413 200 300 300 GR 521 971 520 1007 518 1068 517 1160 516 1243 GR 515 1286 514.8 1320 514 1383 510 1396 507 1400 GR 510 1405 515 1413 520 1447 523 1476 524 1496 ET 7.1 1549 1862 X1 22510 23 1755 1779 1240 1180 1210 GR 532.4 1000 528.3 1100 524.5 1200 522.8 1300 521.8 1400 GR 521.7 1500 521.2 1600 520.5 1700 516.7 1726 516.7 1726 GR 518.5 1755 511.8 1763 512.2 1774 516.9 1779 519.1 1800 GR 518.9 1883 521.6 2000 524.6 2031 525.6 2100 530.2 2200 GR 533.4 2300 536.5 2400 538.4 2500 1 18AUG11 16:03:38 PAGE 9 T1 COTTONWOOD BRANCH MASTER DRAINAGE PLAN T2 100 YEAR FREQUENCY FLOOD ENCROACHED CONDITIONS T3 CITY OF COPPELL, TEXAS (CBENC )12/26/89 J1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ 0. 6. 0. 0. 0. 0. 0. 0. 464.39 J2 NPROF IPLOT PRFVS XSECV XSECH FN ALLDC IBW CHNIM ITRACE 15. 0. -1. 1 18AUG11 16:03:38 PAGE 10 THIS RUN EXECUTED 18AUG11 16:03:42 ************************************* HEC-2 WATER SURFACE PROFILES Version 4.6.2; May 1991 ************************************* NOTE- ASTERISK (*) AT LEFT OF CROSS-SECTION NUMBER INDICATES MESSAGE IN SUMMARY OF ERRORS LIST CITY OF COPPELL, TEXAS ( SUMMARY PRINTOUT TABLE 110 SECNO CWSEL DIFKWS EG TOPWID QLOB QCH QROB PERENC STENCL STCHL STCHR STENCR 32816.000 463.39 .00 463.69 491.46 2098.30 1532.50 3669.20 .00 .00 1157.00 1183.00 .00 32816.000 464.39 .00 464.56 503.12 2157.65 1278.94 3863.41 .00 .00 1157.00 1183.00 .00 32916.000 463.74 .00 463.96 542.06 2324.78 1464.73 3510.49 .00 .00 1000.00 1035.00 .00 32916.000 464.49 .75 464.79 356.00 3017.38 1738.86 2543.76 356.00 854.00 1000.00 1035.00 1210.00 33016.000 464.01 .00 464.18 586.55 1807.42 1170.26 4322.32 .00 .00 1152.00 1183.00 .00 33016.000 464.72 .71 465.08 315.00 1983.27 1721.02 3595.71 315.00 1035.00 1152.00 1183.00 1350.00 33116.000 464.17 .00 464.40 518.05 2281.45 1622.71 3395.84 .00 .00 1152.00 1190.00 .00 33116.000 465.02 .85 465.36 325.00 2500.99 2027.93 2771.08 325.00 1025.00 1152.00 1190.00 1350.00 * 33560.000 465.34 .00 466.08 388.29 2755.84 2765.70 1778.46 .00 .00 1178.00 1210.00 .00 33560.000 466.21 .86 466.86 270.00 3048.78 2755.32 1495.91 270.00 1030.00 1178.00 1210.00 1300.00 * 34075.000 467.31 .00 467.53 592.65 2911.37 2062.02 2326.61 .00 .00 1188.00 1230.00 .00 * 34075.000 467.95 .64 468.26 346.00 2580.03 2488.41 2231.56 346.00 1063.00 1188.00 1230.00 1409.00 34472.000 467.98 .00 468.07 854.47 4190.32 674.20 2435.47 .00 .00 1405.00 1432.00 .00 34472.000 468.79 .81 468.93 509.00 3940.59 922.83 2436.59 509.00 1115.00 1405.00 1432.00 1624.00 34822.000 468.34 .00 468.48 857.32 661.28 1699.33 4939.39 .00 .00 1369.00 1425.00 .00 34822.000 469.21 .87 469.40 511.00 567.39 2053.45 4679.16 511.00 1289.00 1369.00 1425.00 1800.00 6710.000 470.03 .00 470.19 768.16 644.15 1120.76 5535.09 .00 .00 1250.00 1286.00 .00 6710.000 470.80 .77 470.97 587.00 981.37 1220.37 5098.27 587.00 1083.00 1250.00 1286.00 1670.00 8000.000 473.18 .00 473.37 696.22 489.17 931.00 5879.82 .00 .00 2817.00 2848.00 .00 8000.000 473.69 .51 473.93 509.00 734.78 1109.12 5456.10 509.00 2693.00 2817.00 2848.00 3202.00 9430.000 477.16 .00 477.48 534.85 291.19 4535.57 1873.24 .00 .00 1268.00 1426.00 .00 9430.000 478.05 .88 478.52 228.26 .00 5804.89 895.11 229.00 1268.00 1268.00 1426.00 1497.00 1 18AUG11 16:03:38 PAGE 11 SECNO CWSEL DIFKWS EG TOPWID QLOB QCH QROB PERENC STENCL STCHL STCHR STENCR * 9494.000 477.50 .00 480.84 69.76 .00 6700.00 .00 .00 .00 1300.00 1382.00 .00 * 9494.000 477.50 .00 480.84 69.76 .00 6700.00 .00 82.00 1300.00 1300.00 1382.00 1382.00 * 9526.000 479.41 .00 481.38 75.27 .00 6700.00 .00 .00 .00 1300.00 1382.00 .00 * 9526.000 479.41 .00 481.38 75.27 .00 6700.00 .00 82.00 1300.00 1300.00 1382.00 1382.00 * 9590.000 481.95 .00 481.99 736.54 957.06 3181.67 2561.27 .00 .00 1268.00 1426.00 .00 * 9590.000 481.90 -.05 481.99 332.00 .00 4542.94 2157.07 332.00 1268.00 1268.00 1426.00 1600.00 * 10120.000 481.85 .00 483.57 242.44 779.63 5887.24 33.13 .00 .00 1180.00 1273.00 .00 * 10120.000 481.69 -.16 483.75 172.86 526.15 6150.46 23.39 200.00 1126.50 1180.00 1273.00 1326.50 10120.000 482.68 .00 483.74 313.61 1154.45 5450.38 95.17 .00 .00 1180.00 1273.00 .00 10120.000 482.61 -.07 483.95 181.38 732.60 5871.32 96.09 200.00 1126.50 1180.00 1273.00 1326.50 10210.000 483.27 .00 484.34 309.03 780.03 4524.92 1395.05 .00 .00 1180.00 1231.00 .00 10210.000 483.45 .18 484.63 200.00 737.84 4732.15 1230.00 200.00 1105.50 1180.00 1231.00 1305.50 * 10470.000 484.89 .00 485.36 253.92 225.44 4691.60 1782.96 .00 .00 1202.00 1284.00 .00 * 10470.000 485.16 .26 485.79 190.00 290.96 5364.27 1044.77 200.00 1143.00 1202.00 1284.00 1343.00 10655.000 485.33 .00 485.87 277.63 1387.23 4239.67 1073.10 .00 .00 1168.00 1231.00 .00 10655.000 485.69 .36 486.35 180.00 1050.58 4705.57 943.85 180.00 1109.50 1168.00 1231.00 1289.50 10830.000 485.78 .00 486.57 298.19 1183.62 4556.69 959.69 .00 .00 1200.00 1262.00 .00 10830.000 486.21 .43 487.06 180.00 945.69 4787.01 967.30 180.00 1141.00 1200.00 1262.00 1321.00 11030.000 486.87 .00 487.25 301.08 3012.34 3686.88 .78 .00 .00 1217.00 1287.00 .00 11030.000 487.12 .25 487.90 150.13 1771.18 4924.46 4.36 200.00 1152.00 1217.00 1287.00 1352.00 * 11230.000 487.41 .00 487.55 432.17 3115.33 3048.09 536.57 .00 .00 1480.00 1550.00 .00 * 11230.000 488.13 .72 488.31 270.00 2509.30 3472.00 718.70 270.00 1345.00 1480.00 1550.00 1615.00 * 11380.000 487.47 .00 487.78 396.17 1579.88 3851.45 268.67 .00 .00 1284.00 1390.00 .00 * 11380.000 488.26 .79 488.47 425.05 1773.34 3568.05 358.61 .00 .00 1284.00 1390.00 .00 11880.000 488.67 .00 489.24 274.39 719.85 4570.10 410.05 .00 .00 1222.00 1306.00 .00 11880.000 489.02 .35 489.50 284.47 810.87 4441.66 447.46 .00 .00 1222.00 1306.00 .00 12420.000 490.44 .00 491.11 249.16 452.48 5064.43 183.09 .00 .00 1157.00 1246.00 .00 12420.000 490.53 .09 491.18 251.86 469.00 5034.61 196.39 .00 .00 1157.00 1246.00 .00 12540.000 491.08 .00 491.48 328.71 1451.47 4149.95 98.58 .00 .00 1458.00 1538.00 .00 12540.000 491.02 -.06 491.57 164.00 1093.79 4606.21 .00 164.00 1373.00 1458.00 1538.00 1537.00 * 12585.000 490.94 .00 491.76 79.00 .00 5700.00 .00 .00 .00 1417.00 1522.00 .00 * 12585.000 490.95 .01 491.78 75.00 .00 5700.00 .00 79.00 1430.00 1417.00 1522.00 1509.00 12615.000 490.97 .00 491.79 79.00 .00 5700.00 .00 .00 .00 1417.00 1522.00 .00 12615.000 490.99 .01 491.81 75.00 .00 5700.00 .00 79.00 1430.00 1417.00 1522.00 1509.00 1 18AUG11 16:03:38 PAGE 12 SECNO CWSEL DIFKWS EG TOPWID QLOB QCH QROB PERENC STENCL STCHL STCHR STENCR 12675.000 491.71 .00 492.01 351.94 1592.44 3918.77 188.79 .00 .00 1458.00 1538.00 .00 * 12675.000 491.55 -.16 492.01 165.00 1199.04 4500.96 .00 165.00 1373.00 1458.00 1538.00 1538.00 14600.000 495.05 .00 495.27 407.73 3580.77 1785.55 333.68 .00 .00 1676.00 1721.00 .00 14600.000 495.79 .74 496.06 223.00 3735.74 1964.25 .00 223.00 1498.00 1676.00 1721.00 1721.00 * 17970.000 505.62 .00 506.76 378.17 1719.55 3274.96 705.49 .00 .00 1443.00 1499.00 .00 * 17970.000 506.14 .51 507.56 190.00 984.83 3755.90 959.27 190.00 1385.00 1443.00 1499.00 1575.00 * 18085.000 506.94 .00 507.23 234.90 80.18 5600.14 19.68 .00 .00 1281.00 1437.00 .00 * 18085.000 507.77 .83 508.03 150.00 26.44 5673.56 .00 150.00 1275.00 1281.00 1437.00 1425.00 18125.000 506.99 .00 507.27 211.08 58.89 5625.92 15.19 .00 .00 1000.00 1150.00 .00 18125.000 507.83 .84 508.07 150.00 .00 5700.00 .00 150.00 1000.00 1000.00 1150.00 1150.00 * 18670.000 507.60 .00 508.08 148.40 .00 5700.00 .00 .00 .00 1000.00 1150.00 .00 * 18670.000 508.29 .70 508.69 145.00 .00 5700.00 .00 145.00 1002.00 1000.00 1150.00 1147.00 * 18786.000 507.89 .00 508.48 137.35 .00 5700.00 .00 .00 .00 1017.00 1191.00 .00 * 18786.000 508.50 .61 509.00 135.00 .00 5700.00 .00 145.00 1031.50 1017.00 1191.00 1176.50 18884.000 508.35 .00 508.95 137.03 .00 5700.00 .00 .00 .00 1017.00 1191.00 .00 18884.000 508.86 .51 509.38 134.73 .00 5700.00 .00 145.00 1031.50 1017.00 1191.00 1176.50 18969.000 508.72 .00 509.25 145.37 .00 5700.00 .00 .00 .00 1000.00 1150.00 .00 18969.000 509.16 .44 509.63 145.00 .00 5700.00 .00 145.00 1002.50 1000.00 1150.00 1147.50 19609.000 510.66 .00 511.44 136.15 .00 5700.00 .00 .00 .00 1000.00 1150.00 .00 19609.000 510.79 .13 511.53 135.00 .00 5700.00 .00 135.00 1007.50 1000.00 1150.00 1142.50 19659.000 510.76 .00 511.80 125.16 .00 5700.00 .00 .00 .00 1246.00 1399.00 .00 19659.000 510.88 .12 511.88 125.00 .00 5700.00 .00 125.00 1260.00 1246.00 1399.00 1385.00 * 19709.000 510.94 .00 513.29 101.26 .00 5700.00 .00 .00 .00 1226.00 1376.00 .00 * 19709.000 510.98 .04 513.29 101.76 .00 5700.00 .00 150.00 1226.00 1226.00 1376.00 1376.00 * 19759.000 512.22 .00 514.55 100.65 .00 5700.00 .00 .00 .00 958.00 1067.00 .00 * 19759.000 512.22 .00 514.55 100.62 .00 5700.00 .00 109.00 958.00 958.00 1067.00 1067.00 * 19794.000 513.98 .00 516.19 112.93 .00 5700.00 .00 .00 .00 1388.00 1565.00 .00 * 19794.000 513.93 -.05 516.19 110.87 .00 5700.00 .00 140.00 1400.00 1388.00 1565.00 1540.00 * 19944.000 517.13 .00 518.61 278.27 666.05 3769.78 1264.17 .00 .00 1377.00 1416.00 .00 * 19944.000 517.05 -.09 518.63 227.00 628.11 3833.57 1238.32 227.00 1303.00 1377.00 1416.00 1530.00 * 20069.000 518.90 .00 519.31 308.01 1398.46 2706.88 1594.66 .00 .00 1241.00 1278.00 .00 * 20069.000 518.76 -.14 519.52 133.02 1086.97 3311.85 1301.17 .23 1197.13 1241.00 1278.00 1330.15 * 20279.000 519.48 .00 519.57 410.71 3770.53 1806.37 123.09 .00 .00 1340.00 1401.00 .00 * 20279.000 519.77 .29 519.91 228.92 3616.09 2083.91 .00 .20 1172.08 1340.00 1401.00 1401.00 1 18AUG11 16:03:38 PAGE 13 SECNO CWSEL DIFKWS EG TOPWID QLOB QCH QROB PERENC STENCL STCHL STCHR STENCR * 20479.000 519.47 .00 519.77 395.01 1263.51 2484.38 1952.11 .00 .00 1280.00 1324.00 .00 * 20479.000 519.72 .24 520.20 187.19 1018.87 3042.77 1638.37 .25 1202.68 1280.00 1324.00 1389.87 20779.000 520.09 .00 520.32 443.96 4026.62 1518.85 154.53 .00 .00 1383.00 1413.00 .00 20779.000 520.60 .51 520.97 197.02 3944.22 1755.77 .00 .28 1215.98 1383.00 1413.00 1413.00 22510.000 523.14 .00 523.37 736.22 2246.71 1455.93 1997.35 .00 .00 1755.00 1779.00 .00 22510.000 524.14 1.00 524.45 313.00 2688.10 1666.39 1345.51 313.00 1549.00 1755.00 1779.00 1862.00 1 18AUG11 16:03:38 PAGE 14 SUMMARY OF ERRORS AND SPECIAL NOTES WARNING SECNO= 33560.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 34075.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 34075.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 9494.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 9494.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 9494.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 9494.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 9494.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 9494.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL WARNING SECNO= 9526.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 9526.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 9590.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 9590.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 10120.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 10120.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 10120.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 10120.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 10120.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 10120.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL WARNING SECNO= 10470.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 10470.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 11230.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 11230.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 11380.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 11380.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 12585.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 12585.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 12675.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE CAUTION SECNO= 17970.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 17970.000 PROFILE= 1 MINIMUM SPECIFIC ENERGY WARNING SECNO= 17970.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18085.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18085.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18670.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18670.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18786.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 18786.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 18AUG11 16:03:38 PAGE 15 CAUTION SECNO= 19709.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19709.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19709.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 19709.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19709.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19709.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 19759.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19759.000 PROFILE= 1 MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19759.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19759.000 PROFILE= 2 MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19794.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19794.000 PROFILE= 1 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19794.000 PROFILE= 1 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 19794.000 PROFILE= 2 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19794.000 PROFILE= 2 PROBABLE MINIMUM SPECIFIC ENERGY CAUTION SECNO= 19794.000 PROFILE= 2 20 TRIALS ATTEMPTED TO BALANCE WSEL CAUTION SECNO= 19944.000 PROFILE= 1 CRITICAL DEPTH ASSUMED CAUTION SECNO= 19944.000 PROFILE= 1 MINIMUM SPECIFIC ENERGY WARNING SECNO= 19944.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20069.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20069.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20279.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20279.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20479.000 PROFILE= 1 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE WARNING SECNO= 20479.000 PROFILE= 2 CONVEYANCE CHANGE OUTSIDE ACCEPTABLE RANGE 1 18AUG11 16:03:38 PAGE 16 FLOODWAY DATA, CITY OF COPPELL, TEXAS ( PROFILE NO. 2 ------- FLOODWAY ------- WATER SURFACE ELEVATION STATION WIDTH SECTION MEAN WITH WITHOUT DIFFERENCE AREA VELOCITY FLOODWAY FLOODWAY 32816.000 503. 2358. 3.1 464.4 463.4 1.0 32916.000 356. 1780. 4.1 464.5 463.7 .8 33016.000 315. 1591. 4.6 464.7 464.0 .7 33116.000 325. 1675. 4.4 465.1 464.2 .9 33560.000 270. 1315. 5.6 466.2 465.3 .9 34075.000 346. 1841. 4.0 467.9 467.3 .6 34472.000 509. 2467. 3.0 468.8 468.0 .8 34822.000 511. 2338. 3.1 469.2 468.3 .9 6710.000 587. 2371. 3.1 470.8 470.0 .8 8000.000 509. 1934. 3.8 473.7 473.2 .5 9430.000 229. 1267. 5.3 478.1 477.2 .9 9494.000 74. 457. 14.7 477.5 477.5 .0 9526.000 79. 596. 11.2 479.4 479.4 .0 9590.000 332. 2916. 2.3 481.8 481.9 -.1 10120.000 173. 633. 10.6 481.7 481.9 -.2 10120.000 181. 796. 8.4 482.6 482.7 -.1 10210.000 200. 962. 7.0 483.5 483.3 .2 10470.000 190. 1160. 5.8 485.2 484.9 .3 10655.000 180. 1161. 5.8 485.7 485.3 .4 10830.000 180. 1029. 6.5 486.2 485.8 .4 11030.000 150. 1004. 6.7 487.1 486.9 .2 11230.000 270. 2156. 3.1 488.1 487.4 .7 11380.000 425. 1829. 3.1 488.3 487.5 .8 11880.000 284. 1231. 4.6 489.0 488.7 .3 12420.000 252. 1036. 5.5 490.5 490.4 .1 12540.000 164. 1056. 5.4 491.0 491.1 -.1 12585.000 79. 778. 7.3 490.9 490.9 .0 12615.000 79. 781. 7.3 491.0 491.0 .0 12675.000 165. 1146. 5.0 491.5 491.7 -.2 14600.000 223. 1411. 4.0 495.8 495.1 .7 17970.000 190. 713. 8.0 506.1 505.6 .5 18085.000 150. 1401. 4.1 507.7 506.9 .8 18125.000 150. 1460. 3.9 507.8 507.0 .8 18670.000 145. 1128. 5.1 508.3 507.6 .7 18786.000 145. 1002. 5.7 508.5 507.9 .6 18884.000 145. 983. 5.8 508.9 508.4 .5 18969.000 145. 1036. 5.5 509.1 508.7 .4 19609.000 135. 826. 6.9 510.8 510.7 .1 19659.000 125. 710. 8.0 510.9 510.8 .1 19709.000 102. 468. 12.2 510.9 510.9 .0 19759.000 101. 466. 12.2 512.2 512.2 .0 19794.000 111. 473. 12.1 513.9 514.0 -.1 1 18AUG11 16:03:38 PAGE 17 FLOODWAY DATA, CITY OF COPPELL, TEXAS ( PROFILE NO. 2 ------- FLOODWAY ------- WATER SURFACE ELEVATION STATION WIDTH SECTION MEAN WITH WITHOUT DIFFERENCE AREA VELOCITY FLOODWAY FLOODWAY 19944.000 227. 773. 7.4 517.0 517.1 -.1 20069.000 133. 955. 6.0 518.8 518.9 -.1 20279.000 229. 1928. 3.0 519.8 519.5 .3 20479.000 187. 1204. 4.7 519.7 519.5 .2 20779.000 197. 1209. 4.7 520.6 520.1 .5 22510.000 313. 1506. 3.8 524.1 523.1 1.0 DUPLICATE EFFECTIVE MODEL (FLOODPLAIN AND FLOODWAY)DUPLICATE EFFECTIVE FP & FWDUPLICATE EFFECTIVE      FP & FW 0500010000150002000025000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: Duplicate Effective FP 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS 100-YRCrit 100-YRGroundLOBROB5686710800094301012010655112301188012420146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft Comparison of Effective WSEL vs. Duplicate Effective WSEL (100‐Year) Effective Dupl. Eff. 22510 523.10 523.35 20779 520.10 520.32 20479 519.50 519.72 20279 519.50 519.71 20069 518.90 519.00 19944 517.10 517.21 19794 514.00 514.03 19759 512.20 512.21 19709 510.90 510.99 19659 510.80 510.77 19609 510.70 510.68 18969 508.70 508.76 18884 508.40 508.39 18835 18786 507.90 507.94 18670 507.60 507.66 18125 507.00 507.07 18085 506.90 507.02 17970 505.60 505.75 14600 495.10 495.09 12675 491.70 491.76 12615 491.00 491.04 12600 12585 490.90 491.00 12540 491.10 491.15 12420 490.40 490.51 11880 488.70 488.76 11380 487.50 487.59 11230 487.40 487.53 11030 486.90 486.98 10830 485.80 485.85 10655 485.30 485.43 10470 484.90 485.01 10210 483.30 483.39 10130 482.70 482.49 10120 481.90 481.83 9590 481.90 481.92 9526 479.40 479.33 9510 9494 477.50 477.52 9430 477.20 477.25 8000 473.20 473.28 6710 470.00 470.13 8 (34822) 468.30 468.35 7 (34472) 468.00 467.99 6 (34075) 467.30 467.26 5 (33560) 465.30 465.38 4 (33116) 464.20 464.73 3 (33016) 464.00 464.29 2 (32916) 463.70 464.22 1 (32816) 463.40 464.39 W.S. ElevRiver Sta (#####) ‐ Parenthetical notation indicates the river station used in the HEC‐2 model, based on Denton Crk station NOTE:  The differences in water surface elevations are attributed to changes necessary to execute HEC‐2 models in HEC‐RAS (namely reach  lengths), as well as differences in the hydraulic computation engines between both platform, particularly at bridges and culverts. Royal Lane Freeport Parkway Sandy Lake Rd. HEC-RAS Plan: DupEff-FP River: RIVER-1 Reach: Reach-1 Profile: 100-YRReach River Sta Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 1 7300.00 452.20 464.39 461.90 464.57 0.001560 5.13 2357.67 503.12 0.29Reach-1 2 7300.00 452.20 464.22 464.91 0.000551 6.65 1098.05 117.80 0.38Reach-1 3 7300.00 452.20 464.29 464.97 0.000540 6.60 1106.16 118.07 0.38Reach-1 4 7300.00 452.50 464.73 465.07 0.001057 5.13 2008.28 510.69 0.28Reach-1 5 7300.00 454.10 465.38 466.04 0.005106 9.29 1426.19 406.75 0.54Reach-1 6 7300.00 455.60 467.26 467.52 0.001772 5.57 2183.32 555.97 0.33Reach-1 7 7300.00 457.30 467.99 468.08 0.001014 3.69 3287.57 847.88 0.23Reach-1 8 7300.00 458.20 468.35 468.50 0.001675 4.70 2769.51 857.82 0.32Reach-1 6710 7300.00 460.60 470.13 470.29 0.002622 4.87 2504.94 770.61 0.34Reach-1 8000 7300.00 463.90 473.28 473.47 0.003231 5.09 2267.48 700.52 0.36Reach-1 9430 6700.00 466.50 477.25 477.56 0.002889 5.15 1802.37 539.82 0.37Reach-1 9494 6700.00 467.80 477.52 477.52 480.84 0.005713 14.63 458.04 69.81 1.01Reach-1 9510 BridgeReach-1 9526 6700.00 467.80 479.33 477.51 481.33 0.002878 11.35 590.19 75.12 0.71Reach-1 9590 6700.00 466.50 481.92 481.96 0.000220 2.05 4869.46 734.32 0.11Reach-1 10120 6700.00 468.53 481.83 481.83 483.62 0.015197 11.28 724.29 241.76 0.83Reach-1 10130 6700.00 468.53 482.49 481.88 483.79 0.009874 9.78 894.31 308.14 0.68Reach-1 10210 6700.00 468.66 483.39 484.47 0.006878 9.83 1111.06 324.54 0.57Reach-1 10470 6700.00 469.31 485.01 485.47 0.002377 6.11 1398.78 255.25 0.35Reach-1 10655 6700.00 470.63 485.43 485.96 0.002886 6.90 1379.99 279.17 0.39Reach-1 10830 6700.00 471.18 485.85 486.68 0.004999 8.43 1156.99 301.42 0.50Reach-1 11030 6700.00 471.01 486.98 487.36 0.002550 6.01 1542.98 305.25 0.35Reach-1 11230 6700.00 472.50 487.53 487.67 0.000732 3.97 2589.44 435.43 0.21Reach-1 11380 5700.00 471.80 487.59 487.90 0.002359 5.13 1550.67 400.55 0.34Reach-1 11880 5700.00 471.78 488.76 489.33 0.003325 6.63 1157.76 276.96 0.41Reach-1 12420 5700.00 474.52 490.51 491.18 0.003582 6.90 1030.15 251.20 0.42Reach-1 12540 5700.00 474.90 491.15 491.54 0.002103 5.70 1376.07 331.02 0.33Reach-1 12585 5700.00 474.10 491.00 491.81 0.000955 7.22 789.81 79.00 0.40Reach-1 12600 BridgeReach-1 12615 5700.00 474.10 491.04 485.61 491.84 0.000946 7.19 792.55 79.00 0.40Reach-1 12675 5700.00 474.90 491.76 492.06 0.001518 5.06 1585.82 353.79 0.29Reach-1 14600 5700.00 486.40 495.09 495.31 0.002009 5.14 1759.56 408.94 0.32Reach-1 17970 5700.00 497.00 505.75 505.75 506.85 0.013301 10.53 914.23 386.19 0.78Reach-1 18085 5700.00 495.40 507.02 507.30 0.001005 4.28 1415.53 237.37 0.26Reach-1 18125 5700.00 495.80 507.07 507.34 0.000878 4.18 1428.99 213.40 0.25Reach-1 18670 5700.00 498.40 507.66 508.13 0.002130 5.50 1036.32 148.87 0.37Reach-1 18786 5700.00 499.00 507.94 508.52 0.004629 6.13 929.24 137.78 0.42 HEC-RAS Plan: DupEff-FP River: RIVER-1 Reach: Reach-1 Profile: 100-YR (Continued)Reach River Sta Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 18835 BridgeReach-1 18884 5700.00 499.50 508.39 504.82 508.99 0.004711 6.18 922.81 137.39 0.42Reach-1 18969 5700.00 499.90 508.76 509.28 0.002517 5.83 977.11 145.66 0.40Reach-1 19609 5700.00 503.00 510.68 511.44 0.004280 7.03 810.91 136.25 0.51Reach-1 19659 5700.00 503.30 510.77 511.81 0.006323 8.17 697.38 125.26 0.61Reach-1 19709 5700.00 503.60 510.99 510.99 513.29 0.018177 12.17 468.35 101.87 1.00Reach-1 19759 5700.00 503.80 512.21 512.21 514.55 0.022561 12.26 464.87 100.52 1.00Reach-1 19794 5700.00 503.90 514.03 514.03 516.19 0.023503 11.77 484.29 113.76 1.01Reach-1 19944 5700.00 505.60 517.21 517.21 518.73 0.010361 11.78 840.70 282.16 0.72Reach-1 20069 5700.00 505.80 519.00 519.51 0.002772 7.50 1450.09 354.37 0.40Reach-1 20279 5700.00 506.00 519.71 519.81 0.000612 3.27 2552.50 416.40 0.19Reach-1 20479 5700.00 506.10 519.72 520.00 0.001989 5.80 1750.69 403.47 0.32Reach-1 20779 5700.00 507.00 520.32 520.54 0.002228 5.69 1794.82 454.41 0.33Reach-1 22510 5700.00 511.80 523.35 523.57 0.002792 6.43 2086.98 750.11 0.36 HEC-RAS Plan: DupEff-FW River: RIVER-1 Reach: Reach-1 Reach River Sta W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 1 461.90 462.95 466.74 1914.60 2362.08 3023.32 1157.00 1183.00 Reach-1 1 461.96 0.06 463.05 376.50 1975.96 2367.81 2956.22 963.50 1157.00 1183.00 1376.50 Reach-1 2 462.13 463.25 109.48 7300.00 1103.00 1232.00 Reach-1 2 462.16 0.03 463.42 95.12 7300.00 854.00 1103.00 1232.00 1210.00 Reach-1 3 462.29 463.37 110.14 7300.00 1103.00 1232.00 Reach-1 3 462.62 0.33 463.61 111.43 7300.00 1035.00 1103.00 1232.00 1350.00 Reach-1 4 462.81 463.56 303.92 232.09 6919.46 148.45 1122.00 1233.00 Reach-1 4 463.11 0.31 463.78 270.56 259.36 6801.75 238.89 1025.00 1122.00 1233.00 1350.00 Reach-1 5 464.61 465.81 387.74 2313.83 3238.80 1747.38 1178.00 1210.00 Reach-1 5 464.63 0.02 466.03 270.00 2402.50 3388.14 1509.36 1030.00 1178.00 1210.00 1300.00 Reach-1 6 467.36 467.61 558.62 2431.12 2562.30 2306.58 1177.00 1230.00 Reach-1 6 467.65 0.29 467.95 346.00 2665.52 2765.96 1868.52 1063.00 1177.00 1230.00 1409.00 Reach-1 7 468.05 468.14 858.09 4282.00 791.56 2226.44 1405.00 1432.00 Reach-1 7 468.48 0.43 468.65 509.00 3872.40 1108.04 2319.56 1115.00 1405.00 1432.00 1624.00 Reach-1 8 468.40 468.54 861.44 698.82 1772.16 4829.02 1369.00 1425.00 Reach-1 8 468.98 0.58 469.20 511.00 552.03 2146.50 4601.47 1289.00 1369.00 1425.00 1800.00 Reach-1 6710 470.13 470.29 770.68 666.52 1135.52 5497.96 1250.00 1286.00 Reach-1 6710 470.79 0.66 470.96 587.00 972.11 1236.70 5091.19 1083.00 1250.00 1286.00 1670.00 Reach-1 8000 473.28 473.47 700.49 509.89 973.79 5816.31 2817.00 2848.00 Reach-1 8000 473.76 0.48 474.00 509.00 769.79 1143.57 5386.64 2693.00 2817.00 2848.00 3202.00 Reach-1 9430 477.25 477.56 539.84 295.63 4537.16 1867.22 1268.00 1426.00 Reach-1 9430 478.11 0.86 478.58 229.00 5811.75 888.25 1268.00 1268.00 1426.00 1497.00 Reach-1 9494 477.55 480.84 69.92 6700.00 1300.00 1382.00 Reach-1 9494 477.55 0.00 480.84 69.92 6700.00 1300.00 1300.00 1382.00 1382.00 Reach-1 9510 BR D 478.97 481.17 74.45 6700.00 1300.00 1382.00 Reach-1 9510 BR D 478.97 0.00 481.17 74.45 6700.00 1300.00 1300.00 1382.00 1382.00 Reach-1 9510 BR U 479.30 481.32 75.07 6700.00 1300.00 1382.00 Reach-1 9510 BR U 479.30 0.00 481.32 75.07 6700.00 1300.00 1300.00 1382.00 1382.00 Reach-1 9526 479.31 481.32 75.08 6700.00 1300.00 1382.00 Reach-1 9526 479.31 0.00 481.32 75.08 6700.00 1300.00 1300.00 1382.00 1382.00 Reach-1 9590 481.91 481.95 733.86 941.59 3308.21 2450.20 1268.00 1426.00 Reach-1 9590 481.86 -0.05 481.95 332.00 4552.50 2147.50 1268.00 1268.00 1426.00 1600.00 Reach-1 10120 481.82 483.62 241.50 700.29 5969.46 30.25 1180.00 1273.00 Reach-1 10120 481.72 -0.10 483.75 173.12 529.61 6146.06 24.33 1126.50 1180.00 1273.00 1326.50 Reach-1 10130 482.49 483.79 308.04 847.15 5774.06 78.79 1180.00 1273.00 Reach-1 10130 482.58 0.10 483.94 181.12 723.18 5888.26 88.56 1126.50 1180.00 1273.00 1326.50 Reach-1 10210 483.39 484.47 324.65 736.17 4608.19 1355.64 1180.00 1231.00 Reach-1 10210 483.44 0.05 484.63 200.00 723.47 4755.49 1221.04 1105.50 1180.00 1231.00 1305.50 Reach-1 10470 485.01 485.47 255.25 214.10 4689.77 1796.13 1202.00 1284.00 Reach-1 10470 485.17 0.15 485.81 190.11 263.89 5392.38 1043.73 1143.00 1202.00 1284.00 1343.00 Reach-1 10655 485.43 485.96 279.18 1351.91 4278.69 1069.40 1168.00 1231.00 Reach-1 10655 485.71 0.28 486.37 180.00 1051.12 4702.30 946.59 1109.50 1168.00 1231.00 1289.50 Reach-1 10830 485.85 486.68 301.42 1115.11 4664.34 920.55 1200.00 1262.00 Reach-1 10830 486.22 0.37 487.07 180.00 945.98 4790.91 963.11 1141.00 1200.00 1262.00 1321.00 Reach-1 11030 486.98 487.36 305.26 2929.36 3769.04 1.59 1217.00 1287.00 Reach-1 11030 487.12 0.14 487.91 150.18 1736.63 4959.01 4.36 1152.00 1217.00 1287.00 1352.00 Reach-1 11230 487.53 487.67 435.44 3052.74 3134.99 512.28 1480.00 1550.00 Reach-1 11230 488.14 0.62 488.33 270.00 2523.98 3487.85 688.17 1345.00 1480.00 1550.00 1615.00 Reach-1 11380 487.59 487.90 400.55 1524.23 3910.20 265.57 1284.00 1390.00 Reach-1 11380 488.25 0.67 488.51 296.00 1816.19 3826.44 57.37 1104.00 1284.00 1390.00 1400.00 Reach-1 11880 488.76 489.33 276.96 693.18 4613.37 393.45 1222.00 1306.00 Reach-1 11880 489.11 0.35 489.69 226.00 836.40 4783.99 79.61 1090.00 1222.00 1306.00 1316.00 HEC-RAS Plan: DupEff-FW River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 12420 490.51 491.18 251.20 420.19 5093.52 186.29 1157.00 1246.00 Reach-1 12420 490.75 0.24 491.39 180.00 497.34 5113.60 89.06 1090.00 1157.00 1246.00 1270.00 Reach-1 12540 491.15 491.54 331.02 1437.73 4162.90 99.38 1458.00 1538.00 Reach-1 12540 491.25 0.10 491.76 164.00 1121.10 4578.90 1373.00 1458.00 1538.00 1537.00 Reach-1 12585 491.00 491.81 79.00 5700.00 1417.00 1522.00 Reach-1 12585 491.17 0.17 491.97 75.00 5700.00 1430.00 1417.00 1522.00 1509.00 Reach-1 12600 BR D 491.00 491.81 79.00 5700.00 1417.00 1522.00 Reach-1 12600 BR D 491.17 0.17 491.97 75.00 5700.00 1430.00 1417.00 1522.00 1509.00 Reach-1 12600 BR U 491.04 491.84 79.00 5700.00 1417.00 1522.00 Reach-1 12600 BR U 491.20 0.17 492.00 75.00 5700.00 1430.00 1417.00 1522.00 1509.00 Reach-1 12615 491.04 491.84 79.00 5700.00 1417.00 1522.00 Reach-1 12615 491.20 0.17 492.00 75.00 5700.00 1430.00 1417.00 1522.00 1509.00 Reach-1 12675 491.76 492.06 353.79 1575.97 3940.90 183.14 1458.00 1538.00 Reach-1 12675 491.75 -0.01 492.18 165.00 1215.27 4484.73 1373.00 1458.00 1538.00 1538.00 Reach-1 14600 495.09 495.31 408.94 3560.36 1800.33 339.31 1676.00 1721.00 Reach-1 14600 495.83 0.74 496.10 223.00 3719.40 1980.60 1498.00 1676.00 1721.00 1721.00 Reach-1 17970 505.75 506.85 386.19 1712.83 3308.50 678.67 1443.00 1499.00 Reach-1 17970 506.17 0.42 507.59 190.00 996.75 3767.84 935.42 1385.00 1443.00 1499.00 1575.00 Reach-1 18085 507.02 507.30 237.37 84.61 5593.87 21.52 1281.00 1437.00 Reach-1 18085 507.80 0.78 508.06 150.00 26.59 5673.42 1275.00 1281.00 1437.00 1425.00 Reach-1 18125 507.07 507.34 213.40 58.88 5626.56 14.56 1000.00 1150.00 Reach-1 18125 507.86 0.79 508.09 150.00 5700.00 1000.00 1000.00 1150.00 1150.00 Reach-1 18670 507.66 508.13 148.87 5700.00 1000.00 1150.00 Reach-1 18670 508.32 0.66 508.71 145.00 5700.00 1002.00 1000.00 1150.00 1147.00 Reach-1 18786 507.94 508.52 137.78 5700.00 1017.00 1191.00 Reach-1 18786 508.52 0.58 509.02 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR D 507.95 508.53 137.82 5700.00 1017.00 1191.00 Reach-1 18835 BR D 508.52 0.58 509.02 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR U 508.39 508.98 137.34 5700.00 1017.00 1191.00 Reach-1 18835 BR U 508.87 0.48 509.39 134.77 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18884 508.39 508.99 137.39 5700.00 1017.00 1191.00 Reach-1 18884 508.87 0.48 509.39 134.79 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18969 508.76 509.28 145.66 5700.00 1000.00 1150.00 Reach-1 18969 509.17 0.41 509.64 145.00 5700.00 1002.50 1000.00 1150.00 1147.50 Reach-1 19609 510.68 511.44 136.25 5700.00 1000.00 1150.00 Reach-1 19609 510.80 0.12 511.54 135.00 5700.00 1007.50 1000.00 1150.00 1142.50 Reach-1 19659 510.77 511.81 125.26 5700.00 1246.00 1399.00 Reach-1 19659 510.88 0.11 511.88 125.00 5700.00 1260.00 1246.00 1399.00 1385.00 Reach-1 19709 510.99 513.29 101.87 5700.00 1226.00 1376.00 Reach-1 19709 510.99 0.00 513.29 101.87 5700.00 1226.00 1226.00 1376.00 1376.00 Reach-1 19759 512.21 514.55 100.52 5700.00 958.00 1067.00 Reach-1 19759 512.21 0.00 514.55 100.52 5700.00 958.00 958.00 1067.00 1067.00 Reach-1 19794 514.03 516.19 113.76 5700.00 1388.00 1565.00 Reach-1 19794 513.99 -0.04 516.19 111.17 5700.00 1400.00 1388.00 1565.00 1540.00 Reach-1 19944 517.21 518.73 282.16 656.74 3849.12 1194.14 1377.00 1416.00 Reach-1 19944 517.14 -0.07 518.66 227.00 659.84 3811.10 1229.06 1303.00 1377.00 1416.00 1530.00 Reach-1 20069 519.00 519.51 354.37 1358.79 3000.77 1340.45 1241.00 1278.00 Reach-1 20069 518.76 -0.24 519.55 133.02 1059.72 3377.12 1263.17 1197.13 1241.00 1278.00 1330.15 Reach-1 20279 519.71 519.81 416.40 3643.78 1930.91 125.31 1340.00 1401.00 Reach-1 20279 519.81 0.09 519.95 228.92 3603.26 2096.74 1172.08 1340.00 1401.00 1401.00 Reach-1 20479 519.72 520.00 403.47 1283.81 2538.07 1878.12 1280.00 1324.00 HEC-RAS Plan: DupEff-FW River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 20479 519.76 0.04 520.24 187.19 1025.98 3035.40 1638.62 1202.68 1280.00 1324.00 1389.87 Reach-1 20779 520.32 520.54 454.41 3953.96 1577.21 168.84 1383.00 1413.00 Reach-1 20779 520.63 0.31 521.00 197.02 3931.89 1768.11 1215.98 1383.00 1413.00 1413.00 Reach-1 22510 523.35 523.57 750.11 2119.24 1505.89 2074.88 1755.00 1779.00 Reach-1 22510 524.21 0.86 524.52 313.00 2620.62 1702.05 1377.33 1549.00 1755.00 1779.00 1862.00 REVISED EXISTING MODEL (FLOODPLAIN)REVISED EXISTING FP &FWREVISED EXISTING  FP & FW 0500010000150002000025000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: Revised Existing 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS 500-YRCrit 500-YRWS 100-YRCrit 100-YRWS 50-YRCrit 50-YRWS 10-YRCrit 10-YRGroundLOBROB56867108000923398901047011030118801242012957146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 1 10-YR 4500.00 452.20 461.35 461.35 462.11 0.009848 10.09 892.78 449.23 0.68Reach-1 1 50-YR 6400.00 452.20 461.72 461.72 462.70 0.012490 11.77 1062.83 461.19 0.77Reach-1 1 100-YR 7300.00 452.20 461.96 461.96 462.94 0.012431 12.00 1171.77 468.69 0.78Reach-1 1 500-YR 9400.00 452.20 466.80 462.33 466.92 0.000685 3.94 3580.45 508.00 0.20Reach-1 2 10-YR 4500.00 452.20 461.88 462.33 0.000456 5.40 832.57 108.48 0.34Reach-1 2 50-YR 6400.00 452.20 462.07 462.94 0.000858 7.49 854.03 109.26 0.47Reach-1 2 100-YR 7300.00 452.20 462.15 463.27 0.001084 8.46 862.90 109.58 0.53Reach-1 2 500-YR 9400.00 452.20 466.56 467.27 0.000485 6.79 1384.56 128.49 0.36Reach-1 3 10-YR 4500.00 452.20 461.93 462.38 0.000447 5.37 838.35 108.69 0.34Reach-1 3 50-YR 6400.00 452.20 462.19 463.04 0.000823 7.38 866.89 109.73 0.46Reach-1 3 100-YR 7300.00 452.20 462.32 463.38 0.001023 8.29 880.90 110.23 0.52Reach-1 3 500-YR 9400.00 452.20 466.62 467.32 0.000477 6.75 1392.00 128.61 0.36Reach-1 4 10-YR 4500.00 452.50 462.10 462.46 0.001391 4.88 1009.89 205.90 0.30Reach-1 4 50-YR 6400.00 452.50 462.56 463.19 0.002283 6.48 1119.50 269.94 0.39Reach-1 4 100-YR 7300.00 452.50 462.83 463.57 0.002628 7.10 1196.29 306.94 0.42Reach-1 4 500-YR 9400.00 452.50 467.22 467.43 0.000568 4.32 3458.99 658.10 0.21Reach-1 5 10-YR 4500.00 454.10 463.78 463.78 464.80 0.008218 10.36 807.70 362.14 0.66Reach-1 5 50-YR 6400.00 454.10 464.39 464.39 465.51 0.009142 11.51 1033.88 382.05 0.71Reach-1 5 100-YR 7300.00 454.10 464.61 464.61 465.81 0.009733 12.09 1118.12 387.74 0.74Reach-1 5 500-YR 9400.00 454.10 467.56 467.90 0.002154 6.96 2381.15 482.33 0.36Reach-1 6 10-YR 4500.00 455.60 466.18 466.37 0.001478 4.66 1607.69 512.43 0.30Reach-1 6 50-YR 6400.00 455.60 467.01 467.24 0.001619 5.23 2045.91 549.53 0.31Reach-1 6 100-YR 7300.00 455.60 467.36 467.61 0.001653 5.42 2240.16 558.61 0.32Reach-1 6 500-YR 9400.00 455.60 468.54 468.76 0.001328 5.28 2918.34 589.75 0.29Reach-1 7 10-YR 4500.00 457.30 466.84 466.91 0.001071 3.42 2332.71 793.73 0.23Reach-1 7 50-YR 6400.00 457.30 467.69 467.77 0.000992 3.56 3038.33 838.85 0.23Reach-1 7 100-YR 7300.00 457.30 468.05 468.14 0.000982 3.65 3341.86 858.09 0.23Reach-1 7 500-YR 9400.00 457.30 469.10 469.18 0.000770 3.51 4249.04 875.78 0.21Reach-1 8 10-YR 4500.00 458.20 467.23 467.38 0.001992 4.55 1847.52 801.18 0.34Reach-1 8 50-YR 6400.00 458.20 468.05 468.19 0.001682 4.57 2515.52 836.53 0.32Reach-1 8 100-YR 7300.00 458.20 468.40 468.54 0.001603 4.62 2813.30 861.43 0.31Reach-1 8 500-YR 9400.00 458.20 469.37 469.50 0.001252 4.46 3680.67 930.18 0.28 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 6710 10-YR 4500.00 460.60 469.22 469.35 0.002564 4.38 1817.68 745.77 0.33Reach-1 6710 50-YR 6400.00 460.60 469.85 469.99 0.002649 4.75 2287.19 763.84 0.34Reach-1 6710 100-YR 7300.00 460.60 470.13 470.29 0.002616 4.87 2506.96 770.68 0.34Reach-1 6710 500-YR 9400.00 460.60 470.80 470.98 0.002441 5.02 3030.36 786.71 0.33Reach-1 8000 10-YR 4500.00 463.90 472.37 472.51 0.003182 4.54 1643.47 667.03 0.35Reach-1 8000 50-YR 6400.00 463.90 473.01 473.18 0.003204 4.92 2080.91 689.60 0.36Reach-1 8000 100-YR 7300.00 463.90 473.28 473.47 0.003234 5.10 2266.91 700.49 0.36Reach-1 8000 500-YR 9400.00 463.90 473.84 474.06 0.003309 5.46 2667.32 723.37 0.37Reach-1 9233 10-YR 4200.00 467.00 476.40 476.66 0.004826 5.99 1162.62 421.95 0.43Reach-1 9233 50-YR 5900.00 467.00 477.06 477.37 0.004922 6.47 1452.78 449.32 0.44Reach-1 9233 100-YR 6700.00 467.00 477.35 477.68 0.004942 6.66 1582.44 461.04 0.44Reach-1 9233 500-YR 8600.00 467.00 477.96 478.34 0.004987 7.07 1869.43 474.51 0.45Reach-1 9475 10-YR 4200.00 467.23 477.31 477.60 0.002904 5.55 1233.61 391.88 0.37Reach-1 9475 50-YR 5900.00 467.23 478.05 478.40 0.003301 6.24 1535.95 422.82 0.40Reach-1 9475 100-YR 6700.00 467.23 478.37 478.75 0.003523 6.58 1673.84 452.31 0.41Reach-1 9475 500-YR 8600.00 467.23 479.04 479.48 0.003895 7.21 1998.58 514.87 0.44Reach-1 9494 10-YR 4200.00 467.28 476.64 478.36 0.002098 10.52 399.35 69.79 0.77Reach-1 9494 50-YR 5900.00 467.28 476.98 476.98 480.00 0.003480 13.95 422.93 70.51 1.00Reach-1 9494 100-YR 6700.00 467.28 477.54 477.54 480.79 0.003427 14.48 462.63 71.71 1.00Reach-1 9494 500-YR 8600.00 467.28 478.78 478.78 482.53 0.003308 15.53 553.62 74.49 1.00Reach-1 9510 BridgeReach-1 9526 10-YR 4200.00 467.28 477.55 475.67 478.82 0.001339 9.06 463.46 71.74 0.63Reach-1 9526 50-YR 5900.00 467.28 479.19 476.98 480.77 0.001339 10.10 583.95 75.89 0.64Reach-1 9526 100-YR 6700.00 467.28 480.42 477.54 481.92 0.001124 9.85 680.06 80.15 0.60Reach-1 9526 500-YR 8600.00 467.28 483.53 478.78 484.18 0.000418 7.21 1837.02 669.49 0.38Reach-1 9590 10-YR 4200.00 467.40 478.21 478.21 479.36 0.009142 9.70 670.63 408.03 0.63Reach-1 9590 50-YR 5900.00 467.40 481.04 481.27 0.001812 5.37 1993.51 509.10 0.30Reach-1 9590 100-YR 6700.00 467.40 482.24 482.40 0.001106 4.53 2619.65 527.38 0.24Reach-1 9590 500-YR 8600.00 467.40 484.26 484.38 0.000669 3.93 3704.61 548.36 0.19Reach-1 9890 10-YR 4200.00 468.10 480.30 479.05 480.71 0.002910 6.36 1148.82 378.60 0.37 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 9890 50-YR 5900.00 468.10 481.47 481.84 0.002522 6.42 1608.88 404.73 0.35Reach-1 9890 100-YR 6700.00 468.10 482.50 482.77 0.001764 5.72 2035.41 427.54 0.30Reach-1 9890 500-YR 8600.00 468.10 484.40 484.61 0.001131 5.09 2891.44 469.98 0.25Reach-1 10120 10-YR 4200.00 468.53 480.94 481.49 0.003181 6.54 905.26 288.43 0.40Reach-1 10120 50-YR 5900.00 468.53 482.02 482.61 0.003197 7.12 1239.87 330.02 0.41Reach-1 10120 100-YR 6700.00 468.53 482.87 483.37 0.002541 6.73 1529.30 350.36 0.37Reach-1 10120 500-YR 8600.00 468.53 484.64 485.01 0.001733 6.18 2182.88 387.30 0.31Reach-1 10130 10-YR 4200.00 468.53 480.99 481.52 0.003088 6.47 918.35 290.18 0.40Reach-1 10130 50-YR 5900.00 468.53 482.07 482.64 0.003114 7.05 1254.61 331.08 0.41Reach-1 10130 100-YR 6700.00 468.53 482.90 483.39 0.002499 6.68 1540.08 351.10 0.37Reach-1 10130 500-YR 8600.00 468.53 484.66 485.03 0.001717 6.16 2190.45 387.61 0.31Reach-1 10210 10-YR 4200.00 468.66 480.91 480.91 482.73 0.013758 11.28 471.40 183.88 0.77Reach-1 10210 50-YR 5900.00 468.66 482.23 482.23 483.89 0.011185 11.46 772.25 268.80 0.71Reach-1 10210 100-YR 6700.00 468.66 482.59 482.59 484.30 0.011328 11.87 872.63 284.15 0.72Reach-1 10210 500-YR 8600.00 468.66 484.50 485.43 0.005693 9.65 1525.31 387.98 0.53Reach-1 10470 10-YR 4200.00 469.31 483.61 483.93 0.002000 5.03 1050.28 239.63 0.31Reach-1 10470 50-YR 5900.00 469.31 484.65 485.06 0.002212 5.74 1307.58 251.26 0.34Reach-1 10470 100-YR 6700.00 469.31 485.07 485.52 0.002314 6.05 1412.77 255.86 0.35Reach-1 10470 500-YR 8600.00 469.31 485.84 486.40 0.002647 6.83 1614.29 264.45 0.38Reach-1 10655 10-YR 4200.00 470.63 483.95 484.38 0.002671 5.95 981.82 257.16 0.36Reach-1 10655 50-YR 5900.00 470.63 485.04 485.53 0.002765 6.57 1271.62 273.39 0.38Reach-1 10655 100-YR 6700.00 470.63 485.48 486.00 0.002821 6.84 1392.14 279.81 0.38Reach-1 10655 500-YR 8600.00 470.63 486.31 486.94 0.003178 7.66 1634.74 312.65 0.41Reach-1 10830 10-YR 4200.00 471.18 484.33 485.10 0.005222 7.61 742.71 244.51 0.49Reach-1 10830 50-YR 5900.00 471.18 485.44 486.23 0.004972 8.15 1035.89 284.09 0.49Reach-1 10830 100-YR 6700.00 471.18 485.89 486.70 0.004903 8.37 1166.89 302.79 0.49Reach-1 10830 500-YR 8600.00 471.18 486.81 487.64 0.004710 8.76 1460.29 329.92 0.49Reach-1 11030 10-YR 4200.00 471.01 485.42 485.75 0.002151 5.39 1106.36 256.70 0.32Reach-1 11030 50-YR 5900.00 471.01 486.56 486.92 0.002501 5.77 1417.19 289.22 0.35Reach-1 11030 100-YR 6700.00 471.01 486.99 487.37 0.002533 6.00 1546.66 305.71 0.35Reach-1 11030 500-YR 8600.00 471.01 487.87 488.32 0.002654 6.54 1825.06 324.10 0.37 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 11230 10-YR 4200.00 472.50 485.91 486.02 0.000630 3.32 1922.43 389.98 0.19Reach-1 11230 50-YR 5900.00 472.50 487.08 487.21 0.000696 3.77 2397.17 422.83 0.20Reach-1 11230 100-YR 6700.00 472.50 487.54 487.68 0.000729 3.97 2593.38 435.69 0.21Reach-1 11230 500-YR 8600.00 472.50 488.48 488.65 0.000805 4.40 3016.07 462.17 0.22Reach-1 11380 10-YR 3600.00 471.80 485.93 486.26 0.003174 4.99 940.23 332.46 0.37Reach-1 11380 50-YR 5000.00 471.80 487.13 487.43 0.002466 5.02 1371.33 383.92 0.34Reach-1 11380 100-YR 5700.00 471.80 487.60 487.90 0.002345 5.12 1554.23 400.87 0.34Reach-1 11380 500-YR 7100.00 471.80 488.57 488.86 0.002022 5.17 1959.91 436.13 0.32Reach-1 11880 10-YR 3600.00 471.78 487.37 487.82 0.003024 5.60 802.07 236.91 0.38Reach-1 11880 50-YR 5000.00 471.78 488.34 488.87 0.003234 6.32 1045.54 264.98 0.40Reach-1 11880 100-YR 5700.00 471.78 488.76 489.33 0.003319 6.63 1158.63 277.05 0.41Reach-1 11880 500-YR 7100.00 471.78 489.58 490.20 0.003332 7.07 1394.98 300.72 0.41Reach-1 12420 10-YR 3600.00 474.52 488.85 489.41 0.002804 6.09 655.24 146.65 0.37Reach-1 12420 50-YR 5000.00 474.52 489.93 490.65 0.003246 7.10 833.96 183.97 0.41Reach-1 12420 100-YR 5700.00 474.52 490.38 491.17 0.003414 7.51 921.60 201.86 0.42Reach-1 12420 500-YR 7100.00 474.52 491.21 492.09 0.003614 8.15 1100.88 231.88 0.44Reach-1 12539 10-YR 3600.00 474.74 489.19 484.84 489.69 0.002085 6.08 713.55 242.80 0.33Reach-1 12539 50-YR 5000.00 474.74 490.30 486.52 490.97 0.002456 7.05 882.00 279.65 0.36Reach-1 12539 100-YR 5700.00 474.74 491.11 487.22 491.44 0.001291 5.34 1449.70 330.99 0.26Reach-1 12539 500-YR 7100.00 474.74 492.02 488.50 492.36 0.001250 5.50 1771.42 377.44 0.26Reach-1 12567 10-YR 3600.00 474.83 489.55 489.77 0.001249 4.15 1057.78 261.12 0.25Reach-1 12567 50-YR 5000.00 474.83 490.84 491.08 0.001127 4.34 1423.34 313.87 0.25Reach-1 12567 100-YR 5700.00 474.83 491.24 491.50 0.001177 4.56 1552.90 333.27 0.25Reach-1 12567 500-YR 7100.00 474.83 492.14 492.43 0.001149 4.77 1873.09 376.96 0.25Reach-1 12595 10-YR 3600.00 475.20 489.47 483.93 489.89 0.000360 5.22 689.60 133.46 0.34Reach-1 12595 50-YR 5000.00 475.20 490.67 485.37 491.28 0.000422 6.25 800.35 247.07 0.37Reach-1 12595 100-YR 5700.00 475.20 491.03 486.01 491.76 0.000480 6.84 832.94 294.47 0.40Reach-1 12595 500-YR 7100.00 475.20 492.01 487.43 492.60 0.000440 6.49 1332.90 344.74 0.38Reach-1 12600 BridgeReach-1 12661 10-YR 3600.00 475.40 489.86 481.98 490.07 0.000705 3.67 980.36 191.51 0.20Reach-1 12661 50-YR 5000.00 475.40 491.20 483.03 491.52 0.000907 4.51 1113.86 292.50 0.23 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 12661 100-YR 5700.00 475.40 491.66 483.50 492.04 0.001036 4.94 1159.59 329.44 0.25Reach-1 12661 500-YR 7100.00 475.40 492.84 484.44 493.29 0.001931 5.46 1410.42 424.29 0.33Reach-1 12707 10-YR 3600.00 475.40 490.05 490.09 0.000119 1.65 2248.09 242.75 0.08Reach-1 12707 50-YR 5000.00 475.40 491.49 491.56 0.000154 2.02 2633.96 310.28 0.10Reach-1 12707 100-YR 5700.00 475.40 492.01 492.08 0.000174 2.20 2805.09 352.73 0.10Reach-1 12707 500-YR 7100.00 475.40 493.26 493.35 0.000193 2.46 3299.83 444.38 0.11Reach-1 12868 10-YR 3600.00 476.69 489.98 490.18 0.001162 4.25 1171.73 222.54 0.25Reach-1 12868 50-YR 5000.00 476.69 491.42 491.66 0.001232 4.82 1544.02 296.82 0.26Reach-1 12868 100-YR 5700.00 476.69 491.93 492.19 0.001292 5.09 1703.41 323.58 0.27Reach-1 12868 500-YR 7100.00 476.69 493.19 493.45 0.001200 5.26 2152.26 393.42 0.26Reach-1 12957 10-YR 3600.00 476.81 490.00 490.37 0.002689 4.95 787.79 202.41 0.36Reach-1 12957 50-YR 5000.00 476.81 491.46 491.83 0.002157 5.13 1172.61 326.18 0.33Reach-1 12957 100-YR 5700.00 476.81 491.99 492.37 0.002079 5.27 1355.37 370.75 0.33Reach-1 12957 500-YR 7100.00 476.81 493.26 493.59 0.001629 5.15 1894.28 476.38 0.30Reach-1 14600 10-YR 3600.00 486.40 493.94 494.10 0.001785 4.36 1312.49 369.48 0.30Reach-1 14600 50-YR 5000.00 486.40 494.94 495.12 0.001700 4.67 1699.46 404.17 0.30Reach-1 14600 100-YR 5700.00 486.40 495.38 495.57 0.001672 4.81 1881.39 418.02 0.30Reach-1 14600 500-YR 7100.00 486.40 496.20 496.40 0.001627 5.05 2230.54 442.98 0.30Reach-1 17970 10-YR 3600.00 497.00 504.95 504.95 505.92 0.012609 9.26 628.12 333.92 0.74Reach-1 17970 50-YR 5000.00 497.00 505.50 505.50 506.57 0.013150 10.16 822.36 370.39 0.77Reach-1 17970 100-YR 5700.00 497.00 505.75 505.75 506.85 0.013301 10.53 914.23 386.19 0.78Reach-1 17970 500-YR 7100.00 497.00 506.13 506.13 507.36 0.014175 11.36 1068.42 411.35 0.82Reach-1 18085 10-YR 3600.00 495.40 506.13 506.27 0.000596 3.06 1216.30 209.37 0.20Reach-1 18085 50-YR 5000.00 495.40 506.75 506.99 0.000867 3.89 1354.04 229.09 0.24Reach-1 18085 100-YR 5700.00 495.40 507.02 507.30 0.001005 4.28 1415.53 237.37 0.26Reach-1 18085 500-YR 7100.00 495.40 507.49 507.87 0.001280 5.01 1531.25 252.22 0.30Reach-1 18125 10-YR 3600.00 495.80 506.16 506.29 0.000509 2.96 1244.12 193.02 0.18Reach-1 18125 50-YR 5000.00 495.80 506.80 507.02 0.000752 3.79 1372.36 206.88 0.23Reach-1 18125 100-YR 5700.00 495.80 507.07 507.34 0.000878 4.18 1428.99 213.40 0.25Reach-1 18125 500-YR 7100.00 495.80 507.55 507.92 0.001131 4.92 1535.89 228.68 0.28Reach-1 18670 10-YR 3600.00 498.40 506.51 506.78 0.001393 4.13 870.82 139.72 0.29 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 18670 50-YR 5000.00 498.40 507.31 507.71 0.001894 5.08 984.78 146.08 0.34Reach-1 18670 100-YR 5700.00 498.40 507.66 508.13 0.002130 5.50 1036.32 148.87 0.37Reach-1 18670 500-YR 7100.00 498.40 508.29 508.90 0.002497 6.28 1132.10 155.77 0.40Reach-1 18786 10-YR 3600.00 499.00 506.69 507.04 0.003026 4.71 763.87 127.34 0.34Reach-1 18786 50-YR 5000.00 499.00 507.56 508.06 0.004119 5.70 877.21 134.58 0.39Reach-1 18786 100-YR 5700.00 499.00 507.94 508.52 0.004629 6.13 929.24 137.78 0.42Reach-1 18786 500-YR 7100.00 499.00 508.63 509.37 0.005601 6.92 1025.55 143.51 0.46Reach-1 18835 BridgeReach-1 18884 10-YR 3600.00 499.50 506.99 503.52 507.36 0.003301 4.88 737.95 125.62 0.35Reach-1 18884 50-YR 5000.00 499.50 507.96 504.41 508.48 0.004278 5.79 864.13 133.77 0.40Reach-1 18884 100-YR 5700.00 499.50 508.39 504.82 508.99 0.004711 6.18 922.81 137.39 0.42Reach-1 18884 500-YR 7100.00 499.50 509.18 505.52 509.91 0.005493 6.87 1033.53 143.98 0.45Reach-1 18969 10-YR 3600.00 499.90 507.23 507.58 0.002019 4.71 764.73 133.52 0.35Reach-1 18969 50-YR 5000.00 499.90 508.29 508.76 0.002373 5.50 909.62 141.92 0.38Reach-1 18969 100-YR 5700.00 499.90 508.76 509.28 0.002517 5.83 977.11 145.66 0.40Reach-1 18969 500-YR 7100.00 499.90 509.61 510.25 0.002708 6.43 1104.31 155.26 0.42Reach-1 19609 10-YR 3600.00 503.00 508.93 509.52 0.004389 6.16 584.56 122.28 0.50Reach-1 19609 50-YR 5000.00 503.00 510.14 510.85 0.004296 6.77 739.09 131.98 0.50Reach-1 19609 100-YR 5700.00 503.00 510.68 511.44 0.004280 7.03 810.91 136.25 0.51Reach-1 19609 500-YR 7100.00 503.00 511.62 512.50 0.004315 7.53 943.29 143.80 0.52Reach-1 19659 10-YR 3600.00 503.30 509.05 509.88 0.006730 7.28 494.31 110.81 0.61Reach-1 19659 50-YR 5000.00 503.30 510.25 511.22 0.006427 7.90 632.53 120.99 0.61Reach-1 19659 100-YR 5700.00 503.30 510.77 511.81 0.006323 8.17 697.38 125.26 0.61Reach-1 19659 500-YR 7100.00 503.30 511.71 512.88 0.006247 8.68 817.73 132.81 0.62Reach-1 19709 10-YR 3600.00 503.60 509.32 509.32 511.33 0.019065 11.37 316.67 78.95 1.00Reach-1 19709 50-YR 5000.00 503.60 510.50 510.50 512.70 0.018454 11.90 420.07 95.51 1.00Reach-1 19709 100-YR 5700.00 503.60 510.99 510.99 513.29 0.018177 12.17 468.35 101.87 1.00Reach-1 19709 500-YR 7100.00 503.60 511.86 511.86 514.34 0.017714 12.65 561.40 113.12 1.00Reach-1 19759 10-YR 3600.00 503.80 510.68 510.68 512.60 0.023785 11.14 323.17 84.00 1.00Reach-1 19759 50-YR 5000.00 503.80 511.74 511.74 513.96 0.022909 11.93 419.04 95.49 1.00Reach-1 19759 100-YR 5700.00 503.80 512.21 512.21 514.55 0.022561 12.26 464.87 100.52 1.00 HEC-RAS Plan: RevEx River: RIVER-1 Reach: Reach-1 (Continued)Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl(cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 19759 500-YR 7100.00 503.80 513.02 513.02 515.61 0.022322 12.92 549.59 109.27 1.01Reach-1 19794 10-YR 3600.00 503.90 512.55 512.55 514.38 0.024806 10.85 331.88 91.43 1.00Reach-1 19794 50-YR 5000.00 503.90 513.58 513.58 515.64 0.023942 11.51 434.49 106.94 1.01Reach-1 19794 100-YR 5700.00 503.90 514.03 514.03 516.19 0.023503 11.77 484.29 113.76 1.01Reach-1 19794 500-YR 7100.00 503.90 514.87 514.87 517.16 0.022576 12.15 584.59 127.32 1.00Reach-1 19944 10-YR 3600.00 505.60 515.88 515.88 517.38 0.010896 10.76 509.78 211.75 0.71Reach-1 19944 50-YR 5000.00 505.60 516.80 516.80 518.34 0.010676 11.56 728.32 261.51 0.72Reach-1 19944 100-YR 5700.00 505.60 517.21 517.21 518.73 0.010361 11.78 840.70 282.16 0.72Reach-1 19944 500-YR 7100.00 505.60 517.89 517.88 519.42 0.010133 12.27 1043.85 314.15 0.72Reach-1 20069 10-YR 3600.00 505.80 517.69 518.04 0.002061 5.93 1069.47 268.35 0.34Reach-1 20069 50-YR 5000.00 505.80 518.64 519.06 0.002349 6.75 1339.34 299.48 0.37Reach-1 20069 100-YR 5700.00 505.80 519.00 519.51 0.002772 7.50 1450.09 354.37 0.40Reach-1 20069 500-YR 7100.00 505.80 519.66 520.23 0.003019 8.14 1692.71 382.42 0.42Reach-1 20279 10-YR 3600.00 506.00 518.20 518.26 0.000505 2.65 1953.00 373.31 0.16Reach-1 20279 50-YR 5000.00 506.00 519.23 519.32 0.000588 3.10 2356.45 404.70 0.18Reach-1 20279 100-YR 5700.00 506.00 519.71 519.81 0.000612 3.27 2552.50 416.40 0.19Reach-1 20279 500-YR 7100.00 506.00 520.44 520.56 0.000692 3.65 2862.14 434.23 0.20Reach-1 20479 10-YR 3600.00 506.10 518.18 518.45 0.002083 5.31 1173.88 349.46 0.32Reach-1 20479 50-YR 5000.00 506.10 519.23 519.51 0.002037 5.67 1560.06 386.46 0.32Reach-1 20479 100-YR 5700.00 506.10 519.72 520.00 0.001989 5.80 1750.69 403.47 0.32Reach-1 20479 500-YR 7100.00 506.10 520.45 520.76 0.002049 6.17 2057.22 428.44 0.33Reach-1 20779 10-YR 3600.00 507.00 518.84 519.09 0.002792 5.68 1170.34 396.92 0.36Reach-1 20779 50-YR 5000.00 507.00 519.86 520.08 0.002367 5.67 1590.50 434.61 0.34Reach-1 20779 100-YR 5700.00 507.00 520.32 520.54 0.002228 5.69 1794.82 454.41 0.33Reach-1 20779 500-YR 7100.00 507.00 521.06 521.29 0.002143 5.88 2145.04 486.23 0.33Reach-1 22510 10-YR 3600.00 511.80 522.38 522.64 0.003042 6.26 1399.46 666.18 0.37Reach-1 22510 50-YR 5000.00 511.80 523.04 523.28 0.002911 6.42 1858.97 728.79 0.37Reach-1 22510 100-YR 5700.00 511.80 523.35 523.57 0.002792 6.43 2086.98 750.11 0.36Reach-1 22510 500-YR 7100.00 511.80 523.93 524.15 0.002555 6.39 2540.63 790.83 0.35 0500010000150002000025000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: Revised Existing FW 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS FWCrit FWWS 100-YRCrit 100-YRGroundLOBROB56867108000923398901047011030118801242012957146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft HEC-RAS Plan: RevEx-FW River: RIVER-1 Reach: Reach-1 Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 1 100-YR 461.90 462.95 466.74 1914.60 2362.08 3023.32 1157.00 1183.00 Reach-1 1 FW 461.96 0.06 463.05 376.50 1975.96 2367.81 2956.22 963.50 1157.00 1183.00 1376.50 Reach-1 2 100-YR 462.13 463.25 109.48 7300.00 1103.00 1232.00 Reach-1 2 FW 462.16 0.03 463.42 95.12 7300.00 854.00 1103.00 1232.00 1210.00 Reach-1 3 100-YR 462.29 463.37 110.14 7300.00 1103.00 1232.00 Reach-1 3 FW 462.62 0.33 463.61 111.43 7300.00 1035.00 1103.00 1232.00 1350.00 Reach-1 4 100-YR 462.81 463.56 303.92 232.09 6919.46 148.45 1122.00 1233.00 Reach-1 4 FW 463.11 0.31 463.78 270.56 259.36 6801.75 238.89 1025.00 1122.00 1233.00 1350.00 Reach-1 5 100-YR 464.61 465.81 387.74 2313.83 3238.80 1747.38 1178.00 1210.00 Reach-1 5 FW 464.63 0.02 466.03 270.00 2402.50 3388.14 1509.36 1030.00 1178.00 1210.00 1300.00 Reach-1 6 100-YR 467.36 467.61 558.62 2431.12 2562.30 2306.58 1177.00 1230.00 Reach-1 6 FW 467.65 0.29 467.95 346.00 2665.52 2765.96 1868.52 1063.00 1177.00 1230.00 1409.00 Reach-1 7 100-YR 468.05 468.14 858.09 4282.00 791.56 2226.44 1405.00 1432.00 Reach-1 7 FW 468.48 0.43 468.65 509.00 3872.40 1108.04 2319.56 1115.00 1405.00 1432.00 1624.00 Reach-1 8 100-YR 468.40 468.54 861.44 698.82 1772.16 4829.02 1369.00 1425.00 Reach-1 8 FW 468.98 0.58 469.20 511.00 552.03 2146.50 4601.47 1289.00 1369.00 1425.00 1800.00 Reach-1 6710 100-YR 470.13 470.29 770.68 666.52 1135.52 5497.96 1250.00 1286.00 Reach-1 6710 FW 470.79 0.66 470.96 587.00 972.11 1236.70 5091.19 1083.00 1250.00 1286.00 1670.00 Reach-1 8000 100-YR 473.28 473.47 700.49 509.89 973.79 5816.31 2817.00 2848.00 Reach-1 8000 FW 473.66 0.38 473.89 510.00 248.04 1067.15 5984.81 2750.00 2817.00 2848.00 3260.00 Reach-1 9233 100-YR 477.35 477.68 461.04 9.25 1415.12 5275.63 1225.00 1255.00 Reach-1 9233 FW 477.85 0.51 478.34 299.38 34.31 1697.38 4968.31 1200.00 1225.00 1255.00 1500.00 Reach-1 9475 100-YR 478.37 478.75 452.32 1171.14 2998.95 2529.92 1430.00 1489.00 Reach-1 9475 FW 478.99 0.62 479.26 510.41 1229.02 2798.12 2672.87 1430.00 1489.00 Reach-1 9494 100-YR 477.54 480.79 71.71 6700.00 1296.00 1380.00 Reach-1 9494 FW 477.54 0.01 481.48 54.00 6700.00 1313.00 1296.00 1380.00 1367.00 Reach-1 9510 BR D 100-YR 477.93 481.26 68.56 6700.00 1296.00 1380.00 Reach-1 9510 BR D FW 478.00 0.07 482.11 50.00 6700.00 1313.00 1296.00 1380.00 1367.00 Reach-1 9510 BR U 100-YR 479.72 481.76 73.75 6700.00 1296.00 1380.00 Reach-1 9510 BR U FW 479.14 -0.58 482.23 51.50 6700.00 1315.50 1296.00 1380.00 1371.00 Reach-1 9526 100-YR 480.42 481.92 80.15 6700.00 1296.00 1380.00 Reach-1 9526 FW 480.48 0.07 482.50 55.50 6700.00 1315.50 1296.00 1380.00 1371.00 Reach-1 9590 100-YR 482.24 482.40 527.38 2599.70 2302.78 1797.52 1282.00 1327.00 Reach-1 9590 FW 482.26 0.01 483.01 165.00 1774.56 4185.62 739.83 1210.00 1282.00 1327.00 1375.00 Reach-1 9890 100-YR 482.50 482.77 427.54 2515.73 2896.24 1288.03 1262.00 1307.00 Reach-1 9890 FW 483.33 0.84 483.69 240.00 2589.41 3285.43 825.16 1125.00 1262.00 1307.00 1365.00 Reach-1 10120 100-YR 482.87 483.37 350.36 2250.10 4326.70 123.20 1184.00 1247.00 Reach-1 10120 FW 483.77 0.89 484.12 272.00 2662.19 4025.18 12.63 978.00 1184.00 1247.00 1250.00 Reach-1 10130 100-YR 482.90 483.39 351.10 2262.09 4312.37 125.54 1184.00 1247.00 Reach-1 10130 FW 483.78 0.88 484.14 270.00 2661.92 4025.40 12.68 980.00 1184.00 1247.00 1250.00 Reach-1 10210 100-YR 482.59 484.30 284.15 468.89 5083.33 1147.78 1180.00 1231.00 Reach-1 10210 FW 483.44 0.85 484.64 200.00 724.20 4754.31 1221.49 1105.50 1180.00 1231.00 1305.50 Reach-1 10470 100-YR 485.07 485.52 255.86 218.68 4672.07 1809.25 1202.00 1284.00 Reach-1 10470 FW 485.17 0.10 485.81 190.11 263.91 5392.34 1043.75 1143.00 1202.00 1284.00 1343.00 Reach-1 10655 100-YR 485.48 486.00 279.81 1360.86 4261.39 1077.75 1168.00 1231.00 Reach-1 10655 FW 485.71 0.23 486.37 180.00 1051.13 4702.27 946.60 1109.50 1168.00 1231.00 1289.50 Reach-1 10830 100-YR 485.89 486.70 302.79 1123.17 4647.81 929.02 1200.00 1262.00 Reach-1 10830 FW 486.22 0.34 487.07 180.00 945.99 4790.88 963.13 1141.00 1200.00 1262.00 1321.00 Reach-1 11030 100-YR 486.99 487.37 305.71 2933.06 3765.25 1.70 1217.00 1287.00 Reach-1 11030 FW 487.12 0.13 487.91 150.18 1736.64 4959.01 4.36 1152.00 1217.00 1287.00 1352.00 Reach-1 11230 100-YR 487.54 487.68 435.69 3054.22 3132.88 512.90 1480.00 1550.00 Reach-1 11230 FW 488.14 0.61 488.33 270.00 2523.99 3487.85 688.17 1345.00 1480.00 1550.00 1615.00 Reach-1 11380 100-YR 487.60 487.90 400.87 1526.48 3906.99 266.53 1284.00 1390.00 HEC-RAS Plan: RevEx-FW River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 11380 FW 488.25 0.66 488.51 296.00 1816.20 3826.43 57.37 1104.00 1284.00 1390.00 1400.00 Reach-1 11880 100-YR 488.76 489.33 277.05 693.96 4612.28 393.77 1222.00 1306.00 Reach-1 11880 FW 489.11 0.35 489.69 226.00 836.40 4783.99 79.61 1090.00 1222.00 1306.00 1316.00 Reach-1 12420 100-YR 490.38 491.17 201.86 212.91 5051.77 435.32 162.00 230.00 Reach-1 12420 FW 490.65 0.26 491.53 96.00 67.74 5343.33 288.94 155.00 162.00 230.00 251.00 Reach-1 12539 100-YR 491.11 491.44 330.99 2410.25 2845.13 444.63 357.00 399.00 Reach-1 12539 FW 491.12 0.00 491.87 108.00 1088.70 3984.28 627.02 332.00 357.00 399.00 440.00 Reach-1 12567 100-YR 491.24 491.50 333.27 1791.53 3476.08 432.39 275.00 351.00 Reach-1 12567 FW 491.26 0.03 491.96 114.00 4969.65 730.35 286.00 275.00 351.00 400.00 Reach-1 12595 100-YR 491.03 491.76 92.00 5700.00 240.00 351.00 Reach-1 12595 FW 491.21 0.18 492.07 71.00 5700.00 270.00 240.00 351.00 375.00 Reach-1 12600 BR D 100-YR 490.98 491.82 86.00 5700.00 240.00 351.00 Reach-1 12600 BR D FW 491.15 0.17 492.15 66.00 5700.00 270.00 240.00 351.00 375.00 Reach-1 12600 BR U 100-YR 491.49 491.97 86.00 5700.00 193.00 340.00 Reach-1 12600 BR U FW 491.90 0.41 492.37 5700.00 185.00 193.00 340.00 370.00 Reach-1 12661 100-YR 491.66 492.04 100.00 5691.12 8.88 193.00 340.00 Reach-1 12661 FW 492.10 0.44 492.45 100.00 5687.52 12.48 185.00 193.00 340.00 370.00 Reach-1 12707 100-YR 492.01 492.08 352.73 21.26 5574.44 104.30 132.00 317.00 Reach-1 12707 FW 492.41 0.40 492.49 215.00 5535.76 164.24 165.00 132.00 317.00 380.00 Reach-1 12868 100-YR 491.93 492.19 323.58 51.47 3160.61 2487.92 120.00 175.00 Reach-1 12868 FW 492.34 0.41 492.60 240.00 2267.12 3432.88 145.00 120.00 175.00 385.00 Reach-1 12957 100-YR 491.99 492.37 370.75 639.18 4921.31 139.51 221.00 338.00 Reach-1 12957 FW 492.43 0.45 492.76 300.00 616.92 4849.06 234.03 155.00 221.00 338.00 455.00 Reach-1 14600 100-YR 495.38 495.57 418.02 3590.54 1747.31 362.15 1676.00 1721.00 Reach-1 14600 FW 495.76 0.37 496.04 223.00 3710.51 1989.49 1498.00 1676.00 1721.00 1721.00 Reach-1 17970 100-YR 505.75 506.85 386.19 1712.83 3308.50 678.67 1443.00 1499.00 Reach-1 17970 FW 506.24 0.49 507.60 190.00 1008.73 3741.48 949.80 1385.00 1443.00 1499.00 1575.00 Reach-1 18085 100-YR 507.02 507.30 237.37 84.61 5593.87 21.52 1281.00 1437.00 Reach-1 18085 FW 507.80 0.78 508.06 150.00 26.59 5673.41 1275.00 1281.00 1437.00 1425.00 Reach-1 18125 100-YR 507.07 507.34 213.40 58.88 5626.56 14.56 1000.00 1150.00 Reach-1 18125 FW 507.86 0.79 508.09 150.00 5700.00 1000.00 1000.00 1150.00 1150.00 Reach-1 18670 100-YR 507.66 508.13 148.87 5700.00 1000.00 1150.00 Reach-1 18670 FW 508.32 0.66 508.71 145.00 5700.00 1002.00 1000.00 1150.00 1147.00 Reach-1 18786 100-YR 507.94 508.52 137.78 5700.00 1017.00 1191.00 Reach-1 18786 FW 508.52 0.58 509.02 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR D 100-YR 507.95 508.53 137.82 5700.00 1017.00 1191.00 Reach-1 18835 BR D FW 508.52 0.58 509.02 135.00 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18835 BR U 100-YR 508.39 508.98 137.34 5700.00 1017.00 1191.00 Reach-1 18835 BR U FW 508.87 0.48 509.39 134.77 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18884 100-YR 508.39 508.99 137.39 5700.00 1017.00 1191.00 Reach-1 18884 FW 508.87 0.48 509.39 134.79 5700.00 1031.50 1017.00 1191.00 1176.50 Reach-1 18969 100-YR 508.76 509.28 145.66 5700.00 1000.00 1150.00 Reach-1 18969 FW 509.17 0.41 509.64 145.00 5700.00 1002.50 1000.00 1150.00 1147.50 Reach-1 19609 100-YR 510.68 511.44 136.25 5700.00 1000.00 1150.00 Reach-1 19609 FW 510.80 0.12 511.54 135.00 5700.00 1007.50 1000.00 1150.00 1142.50 Reach-1 19659 100-YR 510.77 511.81 125.26 5700.00 1246.00 1399.00 Reach-1 19659 FW 510.88 0.11 511.88 125.00 5700.00 1260.00 1246.00 1399.00 1385.00 Reach-1 19709 100-YR 510.99 513.29 101.87 5700.00 1226.00 1376.00 Reach-1 19709 FW 510.99 0.00 513.29 101.87 5700.00 1226.00 1226.00 1376.00 1376.00 Reach-1 19759 100-YR 512.21 514.55 100.52 5700.00 958.00 1067.00 Reach-1 19759 FW 512.21 0.00 514.55 100.52 5700.00 958.00 958.00 1067.00 1067.00 Reach-1 19794 100-YR 514.03 516.19 113.76 5700.00 1388.00 1565.00 Reach-1 19794 FW 513.99 -0.04 516.19 111.17 5700.00 1400.00 1388.00 1565.00 1540.00 HEC-RAS Plan: RevEx-FW River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile W.S. Elev Prof Delta WS E.G. Elev Top Wdth Act Q Left Q Channel Q Right Enc Sta L Ch Sta L Ch Sta R Enc Sta R (ft) (ft) (ft) (ft) (cfs) (cfs) (cfs) (ft) (ft) (ft) (ft) Reach-1 19944 100-YR 517.21 518.73 282.16 656.74 3849.12 1194.14 1377.00 1416.00 Reach-1 19944 FW 517.14 -0.07 518.66 227.00 659.84 3811.10 1229.06 1303.00 1377.00 1416.00 1530.00 Reach-1 20069 100-YR 519.00 519.51 354.37 1358.79 3000.77 1340.45 1241.00 1278.00 Reach-1 20069 FW 518.76 -0.24 519.55 133.02 1059.72 3377.12 1263.17 1197.13 1241.00 1278.00 1330.15 Reach-1 20279 100-YR 519.71 519.81 416.40 3643.78 1930.91 125.31 1340.00 1401.00 Reach-1 20279 FW 519.81 0.09 519.95 228.92 3603.26 2096.74 1172.08 1340.00 1401.00 1401.00 Reach-1 20479 100-YR 519.72 520.00 403.47 1283.81 2538.07 1878.12 1280.00 1324.00 Reach-1 20479 FW 519.76 0.04 520.24 187.19 1025.98 3035.40 1638.62 1202.68 1280.00 1324.00 1389.87 Reach-1 20779 100-YR 520.32 520.54 454.41 3953.96 1577.21 168.84 1383.00 1413.00 Reach-1 20779 FW 520.63 0.31 521.00 197.02 3931.89 1768.11 1215.98 1383.00 1413.00 1413.00 Reach-1 22510 100-YR 523.35 523.57 750.11 2119.24 1505.89 2074.88 1755.00 1779.00 Reach-1 22510 FW 524.21 0.86 524.52 313.00 2620.62 1702.05 1377.33 1549.00 1755.00 1779.00 1862.00 POST PROJECT MODEL (FLOODPLAIN AND FLOODWAY)POST‐PROJECT     FP &FWPOST‐PROJECT       FP & FW 05000100001500020000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: 1) RevEx 3/20/2013 2) PostProj-FP-FIS 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS 100-YR - RevExCrit 100-YR - RevExWS 100-YR - PostProj-FP-FISCrit 100-YR - PostProj-FP-FISGroundLOBROB56867108000923398901047011030118801242012957146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft HEC-RAS Plan: PostProj-FP-FIS River: RIVER-1 Reach: Reach-1 Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 1 10-YR 4500.00 452.20 461.35 461.35 462.11 0.009848 10.09 892.78 449.23 0.68 Reach-1 1 50-YR 6400.00 452.20 461.72 461.72 462.70 0.012490 11.77 1062.83 461.19 0.77 Reach-1 1 100-YR 7300.00 452.20 461.96 461.96 462.94 0.012431 12.00 1171.77 468.69 0.78 Reach-1 1 500-YR 9400.00 452.20 466.80 462.33 466.92 0.000685 3.94 3580.45 508.00 0.20 Reach-1 2 10-YR 4500.00 452.20 461.88 462.33 0.000456 5.40 832.57 108.48 0.34 Reach-1 2 50-YR 6400.00 452.20 462.07 462.94 0.000858 7.49 854.03 109.26 0.47 Reach-1 2 100-YR 7300.00 452.20 462.15 463.27 0.001084 8.46 862.90 109.58 0.53 Reach-1 2 500-YR 9400.00 452.20 466.56 467.27 0.000485 6.79 1384.56 128.49 0.36 Reach-1 3 10-YR 4500.00 452.20 461.93 462.38 0.000447 5.37 838.35 108.69 0.34 Reach-1 3 50-YR 6400.00 452.20 462.19 463.04 0.000823 7.38 866.89 109.73 0.46 Reach-1 3 100-YR 7300.00 452.20 462.32 463.38 0.001023 8.29 880.90 110.23 0.52 Reach-1 3 500-YR 9400.00 452.20 466.62 467.32 0.000477 6.75 1392.00 128.61 0.36 Reach-1 4 10-YR 4500.00 452.50 462.10 462.46 0.001391 4.88 1009.89 205.90 0.30 Reach-1 4 50-YR 6400.00 452.50 462.56 463.19 0.002283 6.48 1119.50 269.94 0.39 Reach-1 4 100-YR 7300.00 452.50 462.83 463.57 0.002628 7.10 1196.29 306.94 0.42 Reach-1 4 500-YR 9400.00 452.50 467.22 467.43 0.000568 4.32 3458.99 658.10 0.21 Reach-1 5 10-YR 4500.00 454.10 463.78 463.78 464.80 0.008218 10.36 807.70 362.14 0.66 Reach-1 5 50-YR 6400.00 454.10 464.39 464.39 465.51 0.009142 11.51 1033.88 382.05 0.71 Reach-1 5 100-YR 7300.00 454.10 464.61 464.61 465.81 0.009733 12.09 1118.12 387.74 0.74 Reach-1 5 500-YR 9400.00 454.10 467.56 467.90 0.002154 6.96 2381.15 482.33 0.36 Reach-1 6 10-YR 4500.00 455.60 466.18 466.37 0.001478 4.66 1607.69 512.43 0.30 Reach-1 6 50-YR 6400.00 455.60 467.01 467.24 0.001619 5.23 2045.91 549.53 0.31 Reach-1 6 100-YR 7300.00 455.60 467.36 467.61 0.001653 5.42 2240.16 558.61 0.32 Reach-1 6 500-YR 9400.00 455.60 468.54 468.76 0.001328 5.28 2918.34 589.75 0.29 Reach-1 7 10-YR 4500.00 457.30 466.84 466.91 0.001071 3.42 2332.71 793.73 0.23 Reach-1 7 50-YR 6400.00 457.30 467.69 467.77 0.000992 3.56 3038.33 838.85 0.23 Reach-1 7 100-YR 7300.00 457.30 468.05 468.14 0.000982 3.65 3341.86 858.09 0.23 Reach-1 7 500-YR 9400.00 457.30 469.10 469.18 0.000770 3.51 4249.04 875.78 0.21 Reach-1 8 10-YR 4500.00 458.20 467.23 467.38 0.001992 4.55 1847.52 801.18 0.34 Reach-1 8 50-YR 6400.00 458.20 468.05 468.19 0.001682 4.57 2515.52 836.53 0.32 Reach-1 8 100-YR 7300.00 458.20 468.40 468.54 0.001603 4.62 2813.30 861.43 0.31 Reach-1 8 500-YR 9400.00 458.20 469.37 469.50 0.001252 4.46 3680.67 930.18 0.28 Reach-1 6710 10-YR 4500.00 460.60 469.22 469.35 0.002564 4.38 1817.68 745.77 0.33 Reach-1 6710 50-YR 6400.00 460.60 469.85 469.99 0.002649 4.75 2287.19 763.84 0.34 Reach-1 6710 100-YR 7300.00 460.60 470.13 470.29 0.002616 4.87 2506.96 770.68 0.34 Reach-1 6710 500-YR 9400.00 460.60 470.80 470.98 0.002441 5.02 3030.36 786.71 0.33 Reach-1 8000 10-YR 4500.00 463.90 472.37 472.51 0.003182 4.54 1643.47 667.03 0.35 Reach-1 8000 50-YR 6400.00 463.90 473.01 473.18 0.003204 4.92 2080.91 689.60 0.36 Reach-1 8000 100-YR 7300.00 463.90 473.28 473.47 0.003234 5.10 2266.91 700.49 0.36 Reach-1 8000 500-YR 9400.00 463.90 473.84 474.06 0.003309 5.46 2667.32 723.37 0.37 Reach-1 9233 10-YR 4200.00 467.00 476.40 476.66 0.004826 5.99 1162.62 421.95 0.43 Reach-1 9233 50-YR 5900.00 467.00 477.06 477.37 0.004922 6.47 1452.78 449.32 0.44 Reach-1 9233 100-YR 6700.00 467.00 477.35 477.68 0.004942 6.66 1582.44 461.04 0.44 Reach-1 9233 500-YR 8600.00 467.00 477.96 478.34 0.004987 7.07 1869.43 474.51 0.45 Reach-1 9475 10-YR 4200.00 467.23 477.27 477.89 0.003658 7.26 729.69 137.00 0.44 Reach-1 9475 50-YR 5900.00 467.23 478.01 478.92 0.004902 8.87 830.42 140.00 0.51 Reach-1 9475 100-YR 6700.00 467.23 478.30 479.36 0.005458 9.56 871.73 140.00 0.54 Reach-1 9475 500-YR 8600.00 467.23 478.91 480.33 0.006765 11.08 956.73 140.00 0.61 Reach-1 9510 Bridge Reach-1 9590 10-YR 4200.00 467.40 478.03 474.92 478.40 0.002174 5.66 883.66 229.53 0.34 Reach-1 9590 50-YR 5900.00 467.40 479.07 475.74 479.61 0.002637 6.72 1029.49 247.76 0.38 Reach-1 9590 100-YR 6700.00 467.40 479.51 476.03 480.12 0.002821 7.16 1091.23 255.48 0.39 Reach-1 9590 500-YR 8600.00 467.40 480.49 476.79 481.28 0.003182 8.07 1227.41 272.50 0.42 Reach-1 9890 10-YR 4200.00 468.10 479.02 479.02 480.20 0.008193 9.64 691.24 334.84 0.61 Reach-1 9890 50-YR 5900.00 468.10 479.85 479.71 481.01 0.008131 10.27 982.80 366.38 0.62 Reach-1 9890 100-YR 6700.00 468.10 480.38 481.38 0.006945 9.88 1180.91 380.48 0.58 HEC-RAS Plan: PostProj-FP-FIS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 9890 500-YR 8600.00 468.10 481.49 482.27 0.005306 9.32 1615.00 405.07 0.51 Reach-1 10120 10-YR 4200.00 468.53 480.86 481.44 0.003342 6.67 883.64 285.51 0.41 Reach-1 10120 50-YR 5900.00 468.53 481.68 482.39 0.003937 7.70 1128.00 316.94 0.45 Reach-1 10120 100-YR 6700.00 468.53 481.93 482.73 0.004366 8.26 1208.20 326.60 0.48 Reach-1 10120 500-YR 8600.00 468.53 482.65 483.56 0.004727 9.04 1452.55 345.09 0.50 Reach-1 10130 10-YR 4200.00 468.53 480.92 481.48 0.003231 6.58 898.40 287.50 0.40 Reach-1 10130 50-YR 5900.00 468.53 481.74 482.43 0.003790 7.59 1147.75 319.35 0.44 Reach-1 10130 100-YR 6700.00 468.53 482.00 482.77 0.004182 8.13 1232.05 329.42 0.47 Reach-1 10130 500-YR 8600.00 468.53 482.73 483.61 0.004517 8.89 1480.96 347.05 0.49 Reach-1 10210 10-YR 4200.00 468.66 480.96 480.96 482.70 0.014448 11.04 479.80 187.39 0.78 Reach-1 10210 50-YR 5900.00 468.66 482.18 482.18 483.83 0.012078 11.38 758.17 265.82 0.74 Reach-1 10210 100-YR 6700.00 468.66 482.59 482.59 484.24 0.011757 11.64 871.11 284.06 0.73 Reach-1 10210 500-YR 8600.00 468.66 483.18 483.18 485.09 0.013110 12.90 1044.86 305.63 0.78 Reach-1 10470 10-YR 4200.00 469.31 483.58 483.91 0.002028 5.05 1044.65 239.37 0.32 Reach-1 10470 50-YR 5900.00 469.31 484.62 485.04 0.002246 5.77 1300.17 250.93 0.34 Reach-1 10470 100-YR 6700.00 469.31 485.02 485.48 0.002368 6.10 1400.66 255.33 0.35 Reach-1 10470 500-YR 8600.00 469.31 485.91 486.45 0.002574 6.76 1630.70 265.14 0.37 Reach-1 10655 10-YR 4200.00 470.63 483.93 484.37 0.002703 5.98 977.02 256.88 0.36 Reach-1 10655 50-YR 5900.00 470.63 485.02 485.51 0.002801 6.60 1265.21 273.04 0.38 Reach-1 10655 100-YR 6700.00 470.63 485.44 485.97 0.002877 6.89 1381.62 279.26 0.39 Reach-1 10655 500-YR 8600.00 470.63 486.36 486.98 0.003104 7.60 1650.12 313.91 0.41 Reach-1 10830 10-YR 4200.00 471.18 484.32 485.09 0.005269 7.64 739.53 243.98 0.50 Reach-1 10830 50-YR 5900.00 471.18 485.42 486.22 0.005026 8.18 1030.95 283.36 0.49 Reach-1 10830 100-YR 6700.00 471.18 485.86 486.68 0.004986 8.42 1158.31 301.60 0.50 Reach-1 10830 500-YR 8600.00 471.18 486.85 487.67 0.004615 8.70 1472.35 330.97 0.49 Reach-1 11030 10-YR 4200.00 471.01 485.41 485.74 0.002156 5.40 1105.24 256.58 0.32 Reach-1 11030 50-YR 5900.00 471.01 486.55 486.91 0.002510 5.77 1415.43 288.99 0.35 Reach-1 11030 100-YR 6700.00 471.01 486.98 487.37 0.002548 6.01 1543.47 305.31 0.35 Reach-1 11030 500-YR 8600.00 471.01 487.89 488.33 0.002635 6.52 1829.96 324.41 0.37 Reach-1 11230 10-YR 4200.00 472.50 485.91 486.02 0.000631 3.32 1921.20 389.89 0.19 Reach-1 11230 50-YR 5900.00 472.50 487.07 487.21 0.000698 3.77 2395.26 422.71 0.20 Reach-1 11230 100-YR 6700.00 472.50 487.53 487.68 0.000732 3.97 2589.97 435.47 0.21 Reach-1 11230 500-YR 8600.00 472.50 488.49 488.66 0.000802 4.39 3021.29 462.49 0.22 Reach-1 11380 10-YR 3600.00 471.80 485.93 486.25 0.003183 5.00 939.16 332.32 0.37 Reach-1 11380 50-YR 5000.00 471.80 487.13 487.43 0.002473 5.02 1369.62 383.75 0.34 Reach-1 11380 100-YR 5700.00 471.80 487.59 487.90 0.002357 5.12 1551.14 400.59 0.34 Reach-1 11380 500-YR 7100.00 471.80 488.58 488.87 0.002009 5.16 1964.69 436.52 0.32 Reach-1 11880 10-YR 3600.00 471.78 487.37 487.82 0.003025 5.60 801.95 236.89 0.38 Reach-1 11880 50-YR 5000.00 471.78 488.34 488.87 0.003237 6.32 1045.18 264.94 0.40 Reach-1 11880 100-YR 5700.00 471.78 488.76 489.33 0.003324 6.63 1157.87 276.97 0.41 Reach-1 11880 500-YR 7100.00 471.78 489.58 490.20 0.003324 7.06 1396.51 300.87 0.41 Reach-1 12420 10-YR 3600.00 474.52 488.85 489.41 0.002804 6.09 655.22 146.64 0.37 Reach-1 12420 50-YR 5000.00 474.52 489.93 490.65 0.003246 7.10 833.89 183.96 0.41 Reach-1 12420 100-YR 5700.00 474.52 490.38 491.17 0.003415 7.51 921.47 201.84 0.42 Reach-1 12420 500-YR 7100.00 474.52 491.21 492.10 0.003611 8.15 1101.22 231.92 0.44 Reach-1 12539 10-YR 3600.00 474.74 489.29 489.65 0.001570 5.17 796.23 116.95 0.25 Reach-1 12539 50-YR 5000.00 474.74 490.45 490.95 0.002083 6.29 946.09 142.14 0.29 Reach-1 12539 100-YR 5700.00 474.74 490.91 491.49 0.002275 6.72 1014.45 151.68 0.31 Reach-1 12539 500-YR 7100.00 474.74 491.71 492.44 0.002625 7.47 1142.00 168.04 0.33 Reach-1 12567 10-YR 3600.00 474.83 489.53 484.22 489.73 0.000301 4.57 1231.51 175.62 0.22 Reach-1 12567 50-YR 5000.00 474.83 490.79 485.14 491.06 0.000361 5.33 1448.87 180.66 0.25 Reach-1 12567 100-YR 5700.00 474.83 491.31 485.50 491.62 0.000393 5.69 1538.91 182.75 0.26 Reach-1 12567 500-YR 7100.00 474.83 492.21 486.34 492.59 0.000461 6.42 1694.29 190.61 0.29 Reach-1 12600 Bridge Reach-1 12707 10-YR 3600.00 475.40 489.78 479.26 489.83 0.000038 1.75 2055.91 188.44 0.09 HEC-RAS Plan: PostProj-FP-FIS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 12707 50-YR 5000.00 475.40 491.11 479.94 491.19 0.000052 2.19 2287.95 196.05 0.11 Reach-1 12707 100-YR 5700.00 475.40 491.68 480.27 491.76 0.000060 2.40 2386.25 202.95 0.11 Reach-1 12707 500-YR 7100.00 475.40 492.66 480.84 492.78 0.000076 2.78 2563.73 214.24 0.13 Reach-1 12868 10-YR 3600.00 476.69 489.67 489.90 0.001352 4.49 1103.85 214.47 0.26 Reach-1 12868 50-YR 5000.00 476.69 490.99 491.27 0.001471 5.13 1422.66 274.70 0.28 Reach-1 12868 100-YR 5700.00 476.69 491.55 491.85 0.001512 5.38 1584.78 303.89 0.29 Reach-1 12868 500-YR 7100.00 476.69 492.54 492.87 0.001557 5.79 1911.52 355.51 0.30 Reach-1 12957 10-YR 3600.00 476.81 489.70 490.12 0.003214 5.27 728.20 187.87 0.39 Reach-1 12957 50-YR 5000.00 476.81 491.04 491.49 0.002761 5.58 1042.32 290.24 0.37 Reach-1 12957 100-YR 5700.00 476.81 491.61 492.06 0.002573 5.68 1222.27 338.87 0.36 Reach-1 12957 500-YR 7100.00 476.81 492.62 493.07 0.002282 5.81 1607.99 423.58 0.35 Reach-1 14600 10-YR 3600.00 486.40 493.96 494.12 0.001763 4.34 1318.48 370.04 0.30 Reach-1 14600 50-YR 5000.00 486.40 494.97 495.14 0.001674 4.64 1709.10 405.00 0.30 Reach-1 14600 100-YR 5700.00 486.40 495.40 495.59 0.001657 4.79 1887.32 418.45 0.30 Reach-1 14600 500-YR 7100.00 486.40 496.18 496.39 0.001639 5.07 2224.15 442.54 0.30 Reach-1 17970 10-YR 3600.00 497.00 504.92 504.92 505.89 0.012860 9.20 620.45 331.43 0.75 Reach-1 17970 50-YR 5000.00 497.00 505.47 505.47 506.54 0.013363 10.10 813.74 368.34 0.78 Reach-1 17970 100-YR 5700.00 497.00 505.71 505.71 506.82 0.013627 10.50 901.55 383.54 0.79 Reach-1 17970 500-YR 7100.00 497.00 506.09 506.09 507.33 0.014550 11.35 1052.83 408.40 0.83 Reach-1 18085 10-YR 3600.00 495.40 506.10 506.24 0.000604 3.07 1210.65 208.52 0.20 Reach-1 18085 50-YR 5000.00 495.40 506.73 506.96 0.000876 3.91 1348.63 228.35 0.24 Reach-1 18085 100-YR 5700.00 495.40 507.00 507.28 0.001014 4.29 1410.78 236.74 0.26 Reach-1 18085 500-YR 7100.00 495.40 507.48 507.86 0.001288 5.02 1527.22 251.72 0.30 Reach-1 18125 10-YR 3600.00 495.80 506.13 506.27 0.000514 2.97 1239.00 192.45 0.18 Reach-1 18125 50-YR 5000.00 495.80 506.78 507.00 0.000759 3.80 1367.59 206.38 0.23 Reach-1 18125 100-YR 5700.00 495.80 507.05 507.32 0.000884 4.19 1424.85 212.79 0.25 Reach-1 18125 500-YR 7100.00 495.80 507.54 507.91 0.001138 4.93 1532.38 228.20 0.28 Reach-1 18670 10-YR 3600.00 498.40 506.49 506.76 0.001407 4.15 867.70 139.54 0.29 Reach-1 18670 50-YR 5000.00 498.40 507.29 507.69 0.001908 5.09 982.12 145.94 0.35 Reach-1 18670 100-YR 5700.00 498.40 507.64 508.12 0.002143 5.51 1034.11 148.75 0.37 Reach-1 18670 500-YR 7100.00 498.40 508.28 508.89 0.002509 6.29 1130.42 155.64 0.40 Reach-1 18786 10-YR 3600.00 499.00 506.67 507.02 0.003052 4.73 761.28 127.17 0.34 Reach-1 18786 50-YR 5000.00 499.00 507.54 508.05 0.004145 5.71 875.02 134.45 0.39 Reach-1 18786 100-YR 5700.00 499.00 507.93 508.51 0.004652 6.15 927.44 137.67 0.42 Reach-1 18786 500-YR 7100.00 499.00 508.62 509.36 0.005619 6.93 1024.24 143.44 0.46 Reach-1 18835 Bridge Reach-1 18884 10-YR 3600.00 499.50 506.97 503.52 507.34 0.003326 4.89 735.71 125.47 0.36 Reach-1 18884 50-YR 5000.00 499.50 507.95 504.41 508.47 0.004301 5.80 862.31 133.65 0.40 Reach-1 18884 100-YR 5700.00 499.50 508.38 504.82 508.98 0.004730 6.19 921.33 137.30 0.42 Reach-1 18884 500-YR 7100.00 499.50 509.17 505.51 509.91 0.005507 6.88 1032.51 143.92 0.45 Reach-1 18969 10-YR 3600.00 499.90 507.22 507.57 0.002035 4.72 762.63 133.40 0.35 Reach-1 18969 50-YR 5000.00 499.90 508.28 508.75 0.002385 5.51 907.96 141.82 0.38 Reach-1 18969 100-YR 5700.00 499.90 508.75 509.28 0.002526 5.84 975.79 145.59 0.40 Reach-1 18969 500-YR 7100.00 499.90 509.60 510.24 0.002715 6.44 1103.41 155.16 0.42 Reach-1 19609 10-YR 3600.00 503.00 508.92 509.51 0.004401 6.16 584.01 122.25 0.50 Reach-1 19609 50-YR 5000.00 503.00 510.14 510.85 0.004304 6.77 738.61 131.95 0.50 Reach-1 19609 100-YR 5700.00 503.00 510.67 511.44 0.004286 7.03 810.51 136.23 0.51 Reach-1 19609 500-YR 7100.00 503.00 511.62 512.50 0.004318 7.53 943.06 143.78 0.52 Reach-1 19659 10-YR 3600.00 503.30 509.05 509.88 0.006748 7.29 493.86 110.78 0.61 Reach-1 19659 50-YR 5000.00 503.30 510.24 511.21 0.006439 7.91 632.13 120.97 0.61 Reach-1 19659 100-YR 5700.00 503.30 510.77 511.81 0.006332 8.18 697.04 125.23 0.61 Reach-1 19659 500-YR 7100.00 503.30 511.70 512.88 0.006251 8.68 817.54 132.79 0.62 Reach-1 19709 10-YR 3600.00 503.60 509.32 509.32 511.33 0.019066 11.37 316.66 78.94 1.00 Reach-1 19709 50-YR 5000.00 503.60 510.50 510.50 512.70 0.018456 11.90 420.05 95.50 1.00 Reach-1 19709 100-YR 5700.00 503.60 510.99 510.99 513.29 0.018176 12.17 468.37 101.87 1.00 Reach-1 19709 500-YR 7100.00 503.60 511.86 511.86 514.34 0.017715 12.65 561.39 113.12 1.00 HEC-RAS Plan: PostProj-FP-FIS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 19759 10-YR 3600.00 503.80 510.68 510.68 512.60 0.023785 11.14 323.18 84.00 1.00 Reach-1 19759 50-YR 5000.00 503.80 511.74 511.74 513.96 0.022906 11.93 419.05 95.49 1.00 Reach-1 19759 100-YR 5700.00 503.80 512.21 512.21 514.55 0.022559 12.26 464.88 100.52 1.00 Reach-1 19759 500-YR 7100.00 503.80 513.02 513.02 515.61 0.022320 12.92 549.60 109.27 1.01 Reach-1 19794 10-YR 3600.00 503.90 512.55 512.55 514.38 0.024806 10.85 331.88 91.43 1.00 Reach-1 19794 50-YR 5000.00 503.90 513.58 513.58 515.64 0.023941 11.51 434.49 106.94 1.01 Reach-1 19794 100-YR 5700.00 503.90 514.03 514.03 516.19 0.023505 11.77 484.27 113.76 1.01 Reach-1 19794 500-YR 7100.00 503.90 514.87 514.87 517.16 0.022576 12.15 584.59 127.32 1.00 Reach-1 19944 10-YR 3600.00 505.60 515.88 515.88 517.38 0.010896 10.76 509.78 211.75 0.71 Reach-1 19944 50-YR 5000.00 505.60 516.80 516.80 518.34 0.010676 11.56 728.32 261.51 0.72 Reach-1 19944 100-YR 5700.00 505.60 517.21 517.21 518.73 0.010361 11.78 840.70 282.16 0.72 Reach-1 19944 500-YR 7100.00 505.60 517.89 517.88 519.42 0.010133 12.27 1043.85 314.15 0.72 Reach-1 20069 10-YR 3600.00 505.80 517.69 518.04 0.002061 5.93 1069.47 268.35 0.34 Reach-1 20069 50-YR 5000.00 505.80 518.64 519.06 0.002349 6.75 1339.34 299.48 0.37 Reach-1 20069 100-YR 5700.00 505.80 519.00 519.51 0.002772 7.50 1450.07 354.37 0.40 Reach-1 20069 500-YR 7100.00 505.80 519.66 520.23 0.003019 8.14 1692.71 382.42 0.42 Reach-1 20279 10-YR 3600.00 506.00 518.20 518.26 0.000505 2.65 1953.00 373.31 0.16 Reach-1 20279 50-YR 5000.00 506.00 519.23 519.32 0.000588 3.10 2356.45 404.70 0.18 Reach-1 20279 100-YR 5700.00 506.00 519.71 519.81 0.000612 3.27 2552.50 416.40 0.19 Reach-1 20279 500-YR 7100.00 506.00 520.44 520.56 0.000692 3.65 2862.14 434.23 0.20 Reach-1 20479 10-YR 3600.00 506.10 518.18 518.45 0.002083 5.31 1173.88 349.46 0.32 Reach-1 20479 50-YR 5000.00 506.10 519.23 519.51 0.002037 5.67 1560.06 386.46 0.32 Reach-1 20479 100-YR 5700.00 506.10 519.72 520.00 0.001989 5.80 1750.69 403.47 0.32 Reach-1 20479 500-YR 7100.00 506.10 520.45 520.76 0.002049 6.17 2057.22 428.44 0.33 Reach-1 20779 10-YR 3600.00 507.00 518.84 519.09 0.002792 5.68 1170.34 396.92 0.36 Reach-1 20779 50-YR 5000.00 507.00 519.86 520.08 0.002367 5.67 1590.50 434.61 0.34 Reach-1 20779 100-YR 5700.00 507.00 520.32 520.54 0.002228 5.69 1794.82 454.41 0.33 Reach-1 20779 500-YR 7100.00 507.00 521.06 521.29 0.002143 5.88 2145.04 486.23 0.33 Reach-1 22510 10-YR 3600.00 511.80 522.38 522.64 0.003042 6.26 1399.46 666.18 0.37 Reach-1 22510 50-YR 5000.00 511.80 523.04 523.28 0.002911 6.42 1858.97 728.79 0.37 Reach-1 22510 100-YR 5700.00 511.80 523.35 523.57 0.002792 6.43 2086.98 750.11 0.36 Reach-1 22510 500-YR 7100.00 511.80 523.93 524.15 0.002555 6.39 2540.63 790.83 0.35 ULTIMATE CONDITIONS FLOODPLAIN (REVISED EXISTING AND POST‐PROJ) ULTIMATE FP REVEX & POST‐PROJULTIMATE CONDITIONS FP     REVEX & POST‐PROJ 05000100001500020000460480500520CLOMR-Sandy Lake&Freeport-Cottonwood Br Plan: 1) RevEx-FP-Ult 3/20/2013 2) PostProj-FP-ULT 3/20/2013 Main Channel Distance (ft)Elevation (ft)LegendWS 100-ULT - RevEx-FP-UltCrit 100-ULT - RevEx-FP-UltWS 100-ULT - PostProj-FP-ULTCrit 100-ULT - PostProj-FP-ULTGroundLOBROB56867108000923398901047011030118801242012957146001797018670196092027920779225101 in Horiz. = 3000 ft 1 in Vert. = 12 ft HEC-RAS River: RIVER-1 Reach: Reach-1 Reach River Sta Profile Plan Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 1 002-ULT RevEx-FP-Ult 7870.00 452.20 463.39 462.05 463.75 0.003733 7.40 1859.66 491.46 0.44 Reach-1 1 002-ULT PostProj-FP-ULT 7870.00 452.20 463.39 462.05 463.75 0.003733 7.40 1859.66 491.46 0.44 Reach-1 1 100-ULT RevEx-FP-Ult 22468.00 452.20 464.10 464.10 466.05 0.017975 17.09 2212.83 500.81 0.97 Reach-1 1 100-ULT PostProj-FP-ULT 22468.00 452.20 464.10 464.10 466.05 0.017975 17.09 2212.83 500.81 0.97 Reach-1 2 002-ULT RevEx-FP-Ult 2990.00 452.20 463.76 463.89 0.000106 2.86 1043.76 115.96 0.17 Reach-1 2 002-ULT PostProj-FP-ULT 2990.00 452.20 463.76 463.89 0.000106 2.86 1043.76 115.96 0.17 Reach-1 2 100-ULT RevEx-FP-Ult 8390.00 452.20 466.11 466.73 0.000429 6.32 1327.80 125.09 0.34 Reach-1 2 100-ULT PostProj-FP-ULT 8390.00 452.20 466.11 466.73 0.000429 6.32 1327.80 125.09 0.34 Reach-1 3 002-ULT RevEx-FP-Ult 2990.00 452.20 463.77 463.90 0.000106 2.86 1045.04 116.00 0.17 Reach-1 3 002-ULT PostProj-FP-ULT 2990.00 452.20 463.77 463.90 0.000106 2.86 1045.04 116.00 0.17 Reach-1 3 100-ULT RevEx-FP-Ult 8390.00 452.20 466.16 466.78 0.000423 6.29 1334.09 125.19 0.34 Reach-1 3 100-ULT PostProj-FP-ULT 8390.00 452.20 466.16 466.78 0.000423 6.29 1334.09 125.19 0.34 Reach-1 4 002-ULT RevEx-FP-Ult 2990.00 452.50 463.83 463.92 0.000276 2.47 1574.21 446.40 0.14 Reach-1 4 002-ULT PostProj-FP-ULT 2990.00 452.50 463.83 463.92 0.000276 2.47 1574.21 446.40 0.14 Reach-1 4 100-ULT RevEx-FP-Ult 8390.00 452.50 466.66 466.87 0.000573 4.22 3102.88 623.36 0.21 Reach-1 4 100-ULT PostProj-FP-ULT 8390.00 452.50 466.66 466.87 0.000573 4.22 3102.88 623.36 0.21 Reach-1 5 002-ULT RevEx-FP-Ult 2990.00 454.10 463.90 464.30 0.003205 6.54 852.19 367.63 0.42 Reach-1 5 002-ULT PostProj-FP-ULT 2990.00 454.10 463.90 464.30 0.003205 6.54 852.19 367.63 0.42 Reach-1 5 100-ULT RevEx-FP-Ult 8390.00 454.10 467.01 467.35 0.002272 6.91 2124.03 451.21 0.37 Reach-1 5 100-ULT PostProj-FP-ULT 8390.00 454.10 467.01 467.35 0.002272 6.91 2124.03 451.21 0.37 Reach-1 6 002-ULT RevEx-FP-Ult 2990.00 455.60 465.20 465.38 0.001449 4.22 1142.59 455.05 0.29 Reach-1 6 002-ULT PostProj-FP-ULT 2990.00 455.60 465.20 465.38 0.001449 4.22 1142.59 455.05 0.29 Reach-1 6 100-ULT RevEx-FP-Ult 8390.00 455.60 468.05 468.27 0.001414 5.27 2627.86 576.35 0.30 Reach-1 6 100-ULT PostProj-FP-ULT 8390.00 455.60 468.05 468.27 0.001414 5.27 2627.86 576.35 0.30 Reach-1 7 002-ULT RevEx-FP-Ult 2990.00 457.30 465.92 465.99 0.001428 3.59 1613.94 771.85 0.26 Reach-1 7 002-ULT PostProj-FP-ULT 2990.00 457.30 465.92 465.99 0.001428 3.59 1613.94 771.85 0.26 Reach-1 7 100-ULT RevEx-FP-Ult 8390.00 457.30 468.64 468.72 0.000837 3.54 3846.86 867.98 0.21 Reach-1 7 100-ULT PostProj-FP-ULT 8390.00 457.30 468.64 468.72 0.000837 3.54 3846.86 867.98 0.21 Reach-1 8 002-ULT RevEx-FP-Ult 2990.00 458.20 466.45 466.62 0.002560 4.67 1232.34 768.66 0.37 Reach-1 8 002-ULT PostProj-FP-ULT 2990.00 458.20 466.45 466.62 0.002560 4.67 1232.34 768.66 0.37 Reach-1 8 100-ULT RevEx-FP-Ult 8390.00 458.20 468.93 469.07 0.001376 4.50 3282.02 899.24 0.29 Reach-1 8 100-ULT PostProj-FP-ULT 8390.00 458.20 468.93 469.07 0.001376 4.50 3282.02 899.24 0.29 Reach-1 6710 002-ULT RevEx-FP-Ult 2990.00 460.60 468.68 468.77 0.002228 3.88 1415.27 692.67 0.30 Reach-1 6710 002-ULT PostProj-FP-ULT 2990.00 460.60 468.68 468.77 0.002228 3.88 1415.27 692.67 0.30 Reach-1 6710 100-ULT RevEx-FP-Ult 8390.00 460.60 470.48 470.65 0.002534 4.96 2777.52 779.00 0.33 Reach-1 6710 100-ULT PostProj-FP-ULT 8390.00 460.60 470.48 470.65 0.002534 4.96 2777.52 779.00 0.33 Reach-1 8000 002-ULT RevEx-FP-Ult 2910.00 463.90 471.61 471.74 0.003204 4.29 1174.04 571.52 0.35 Reach-1 8000 002-ULT PostProj-FP-ULT 2910.00 463.90 471.61 471.74 0.003204 4.29 1174.04 571.52 0.35 Reach-1 8000 100-ULT RevEx-FP-Ult 8710.00 463.90 473.63 473.84 0.003382 5.41 2515.14 714.76 0.37 Reach-1 8000 100-ULT PostProj-FP-ULT 8710.00 463.90 473.63 473.84 0.003382 5.41 2515.14 714.76 0.37 Reach-1 9233 002-ULT RevEx-FP-Ult 2750.00 467.00 475.69 474.93 475.92 0.004751 5.56 871.11 405.54 0.42 Reach-1 9233 002-ULT PostProj-FP-ULT 2750.00 467.00 475.69 474.93 475.92 0.004751 5.56 871.11 405.54 0.42 Reach-1 9233 100-ULT RevEx-FP-Ult 8250.00 467.00 477.84 478.21 0.005038 7.03 1811.18 471.81 0.45 Reach-1 9233 100-ULT PostProj-FP-ULT 8250.00 467.00 477.84 478.21 0.005038 7.03 1811.18 471.81 0.45 Reach-1 9475 002-ULT RevEx-FP-Ult 2750.00 467.23 476.52 476.76 0.002421 4.78 936.83 360.68 0.33 Reach-1 9475 002-ULT PostProj-FP-ULT 2750.00 467.23 476.47 476.85 0.002534 5.65 619.05 137.00 0.36 Reach-1 9475 100-ULT RevEx-FP-Ult 8250.00 467.23 478.92 479.35 0.003855 7.12 1936.30 503.71 0.44 Reach-1 9475 100-ULT PostProj-FP-ULT 8250.00 467.23 478.80 480.16 0.006539 10.82 941.57 140.00 0.60 Reach-1 9494 002-ULT RevEx-FP-Ult 2750.00 467.28 476.24 477.09 0.001117 7.40 371.78 68.93 0.56 Reach-1 9494 100-ULT RevEx-FP-Ult 8250.00 467.28 478.56 478.56 482.22 0.003325 15.36 537.18 73.92 1.00 Reach-1 9510 Bridge Reach-1 9526 002-ULT RevEx-FP-Ult 2750.00 467.28 476.57 474.05 477.32 0.000935 6.97 394.27 69.63 0.52 Reach-1 9526 100-ULT RevEx-FP-Ult 8250.00 467.28 482.66 478.56 483.72 0.000672 8.65 1290.41 578.38 0.47 Reach-1 9590 002-ULT RevEx-FP-Ult 2750.00 467.40 476.01 475.48 478.21 0.019064 11.91 231.31 114.23 0.88 Reach-1 9590 002-ULT PostProj-FP-ULT 2750.00 467.40 476.97 474.12 477.21 0.001649 4.53 738.49 208.00 0.29 Reach-1 9590 100-ULT RevEx-FP-Ult 8250.00 467.40 483.93 484.04 0.000713 3.99 3521.20 543.83 0.19 Reach-1 9590 100-ULT PostProj-FP-ULT 8250.00 467.40 480.31 476.66 481.07 0.003125 7.92 1202.97 269.44 0.42 Reach-1 9890 002-ULT RevEx-FP-Ult 2750.00 468.10 479.52 475.86 479.85 0.002306 5.33 863.67 353.83 0.33 Reach-1 9890 002-ULT PostProj-FP-ULT 2750.00 468.10 477.26 475.84 478.86 0.012622 10.16 273.69 69.33 0.73 Reach-1 9890 100-ULT RevEx-FP-Ult 8250.00 468.10 484.08 484.29 0.001205 5.16 2739.94 462.75 0.25 Reach-1 9890 100-ULT PostProj-FP-ULT 8250.00 468.10 481.29 482.11 0.005544 9.40 1536.18 400.72 0.52 Reach-1 10120 002-ULT RevEx-FP-Ult 2750.00 468.53 480.04 480.45 0.002515 5.39 660.15 253.36 0.35 Reach-1 10120 002-ULT PostProj-FP-ULT 2750.00 468.53 479.74 480.22 0.003025 5.77 588.74 227.04 0.38 Reach-1 10120 100-ULT RevEx-FP-Ult 8250.00 468.53 484.33 484.72 0.001844 6.26 2064.14 382.47 0.32 Reach-1 10120 100-ULT PostProj-FP-ULT 8250.00 468.53 482.50 483.41 0.004724 8.95 1402.05 341.57 0.50 HEC-RAS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Plan Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 10130 002-ULT RevEx-FP-Ult 2750.00 468.53 480.07 480.47 0.002461 5.34 668.19 254.59 0.35 Reach-1 10130 002-ULT PostProj-FP-ULT 2750.00 468.53 479.78 480.26 0.002943 5.71 599.05 231.34 0.38 Reach-1 10130 100-ULT RevEx-FP-Ult 8250.00 468.53 484.35 484.74 0.001826 6.24 2072.19 382.80 0.32 Reach-1 10130 100-ULT PostProj-FP-ULT 8250.00 468.53 482.59 483.45 0.004509 8.79 1430.39 343.55 0.49 Reach-1 10210 002-ULT RevEx-FP-Ult 2750.00 468.66 479.72 477.36 481.13 0.010587 9.58 307.91 104.17 0.66 Reach-1 10210 002-ULT PostProj-FP-ULT 2750.00 468.66 479.43 477.35 481.01 0.011880 10.09 280.10 86.45 0.70 Reach-1 10210 100-ULT RevEx-FP-Ult 8250.00 468.66 484.14 485.20 0.006567 10.12 1385.82 378.59 0.57 Reach-1 10210 100-ULT PostProj-FP-ULT 8250.00 468.66 482.97 482.97 484.96 0.013827 13.03 981.59 297.95 0.80 Reach-1 10470 002-ULT RevEx-FP-Ult 2750.00 469.31 482.04 482.36 0.002367 4.73 694.06 214.15 0.33 Reach-1 10470 002-ULT PostProj-FP-ULT 2750.00 469.31 482.00 482.32 0.002447 4.78 684.10 213.13 0.33 Reach-1 10470 100-ULT RevEx-FP-Ult 8250.00 469.31 485.69 486.23 0.002617 6.72 1572.69 262.70 0.37 Reach-1 10470 100-ULT PostProj-FP-ULT 8250.00 469.31 485.80 486.32 0.002486 6.60 1602.37 263.95 0.36 Reach-1 10655 002-ULT RevEx-FP-Ult 2750.00 470.63 482.44 482.91 0.003233 5.74 611.72 234.67 0.39 Reach-1 10655 002-ULT PostProj-FP-ULT 2750.00 470.63 482.41 482.88 0.003312 5.79 604.07 234.19 0.39 Reach-1 10655 100-ULT RevEx-FP-Ult 8250.00 470.63 486.15 486.77 0.003168 7.57 1583.48 308.42 0.41 Reach-1 10655 100-ULT PostProj-FP-ULT 8250.00 470.63 486.24 486.83 0.003033 7.45 1611.16 310.71 0.40 Reach-1 10830 002-ULT RevEx-FP-Ult 2750.00 471.18 482.99 483.72 0.005764 7.00 455.72 179.38 0.50 Reach-1 10830 002-ULT PostProj-FP-ULT 2750.00 471.18 482.97 483.71 0.005833 7.02 452.74 178.35 0.50 Reach-1 10830 100-ULT RevEx-FP-Ult 8250.00 471.18 486.64 487.47 0.004765 8.71 1404.95 325.08 0.49 Reach-1 10830 100-ULT PostProj-FP-ULT 8250.00 471.18 486.71 487.51 0.004589 8.59 1426.66 326.98 0.48 Reach-1 11030 002-ULT RevEx-FP-Ult 2750.00 471.01 484.05 484.36 0.001896 4.90 779.96 224.27 0.30 Reach-1 11030 002-ULT PostProj-FP-ULT 2750.00 471.01 484.05 484.35 0.001904 4.90 778.57 224.15 0.30 Reach-1 11030 100-ULT RevEx-FP-Ult 8250.00 471.01 487.72 488.15 0.002637 6.45 1774.63 320.90 0.37 Reach-1 11030 100-ULT PostProj-FP-ULT 8250.00 471.01 487.75 488.18 0.002602 6.42 1783.30 321.46 0.36 Reach-1 11230 002-ULT RevEx-FP-Ult 2750.00 472.50 484.52 484.62 0.000601 2.93 1409.06 351.01 0.18 Reach-1 11230 002-ULT PostProj-FP-ULT 2750.00 472.50 484.52 484.61 0.000603 2.93 1407.48 350.88 0.18 Reach-1 11230 100-ULT RevEx-FP-Ult 8250.00 472.50 488.31 488.48 0.000793 4.32 2939.79 457.50 0.22 Reach-1 11230 100-ULT PostProj-FP-ULT 8250.00 472.50 488.33 488.50 0.000787 4.31 2949.05 458.07 0.22 Reach-1 11380 002-ULT RevEx-FP-Ult 2750.00 471.80 484.41 484.97 0.007069 6.14 503.94 208.86 0.53 Reach-1 11380 002-ULT PostProj-FP-ULT 2750.00 471.80 484.41 484.97 0.007091 6.15 502.85 208.48 0.53 Reach-1 11380 100-ULT RevEx-FP-Ult 8250.00 471.80 488.33 488.78 0.003131 6.30 1857.18 427.47 0.39 Reach-1 11380 100-ULT PostProj-FP-ULT 8250.00 471.80 488.35 488.79 0.003094 6.28 1865.90 428.21 0.39 Reach-1 11880 002-ULT RevEx-FP-Ult 2750.00 471.78 486.70 487.07 0.002748 4.98 649.11 217.42 0.35 Reach-1 11880 002-ULT PostProj-FP-ULT 2750.00 471.78 486.70 487.07 0.002748 4.98 649.07 217.41 0.35 Reach-1 11880 100-ULT RevEx-FP-Ult 8250.00 471.78 489.82 490.57 0.003991 7.87 1467.47 307.88 0.45 Reach-1 11880 100-ULT PostProj-FP-ULT 8250.00 471.78 489.82 490.58 0.003980 7.86 1469.17 308.05 0.45 Reach-1 12420 002-ULT RevEx-FP-Ult 2750.00 474.52 488.04 488.46 0.002405 5.26 552.02 107.14 0.34 Reach-1 12420 002-ULT PostProj-FP-ULT 2750.00 474.52 488.04 488.46 0.002405 5.26 552.02 107.14 0.34 Reach-1 12420 100-ULT RevEx-FP-Ult 8250.00 474.52 491.71 492.69 0.003860 8.68 1219.99 244.09 0.46 Reach-1 12420 100-ULT PostProj-FP-ULT 8250.00 474.52 491.71 492.69 0.003858 8.68 1220.29 244.12 0.46 Reach-1 12539 002-ULT RevEx-FP-Ult 2750.00 474.74 488.30 483.31 488.71 0.001887 5.46 594.30 224.26 0.31 Reach-1 12539 002-ULT PostProj-FP-ULT 2750.00 474.74 488.39 488.67 0.001263 4.43 697.28 105.74 0.22 Reach-1 12539 100-ULT RevEx-FP-Ult 8250.00 474.74 492.60 489.12 492.97 0.001262 5.68 1997.21 397.00 0.27 Reach-1 12539 100-ULT PostProj-FP-ULT 8250.00 474.74 492.19 493.06 0.002976 8.11 1225.10 177.89 0.35 Reach-1 12567 002-ULT RevEx-FP-Ult 2750.00 474.83 488.56 488.78 0.001440 4.10 809.75 238.96 0.27 Reach-1 12567 002-ULT PostProj-FP-ULT 2750.00 474.83 488.57 483.52 488.73 0.000259 4.02 1066.50 167.48 0.21 Reach-1 12567 100-ULT RevEx-FP-Ult 8250.00 474.83 492.72 493.04 0.001173 4.99 2099.30 405.00 0.26 Reach-1 12567 100-ULT PostProj-FP-ULT 8250.00 474.83 492.79 486.90 493.24 0.000523 7.00 1794.46 200.39 0.31 Reach-1 12595 002-ULT RevEx-FP-Ult 2750.00 475.20 488.52 482.89 488.85 0.000323 4.56 602.74 97.82 0.31 Reach-1 12595 100-ULT RevEx-FP-Ult 8250.00 475.20 492.59 488.18 493.21 0.000435 6.74 1538.81 363.07 0.39 Reach-1 12600 Bridge Reach-1 12661 002-ULT RevEx-FP-Ult 2750.00 475.40 488.84 481.25 488.99 0.000557 3.11 884.99 164.36 0.18 Reach-1 12661 100-ULT RevEx-FP-Ult 8250.00 475.40 493.87 485.13 494.29 0.001600 5.35 1883.18 483.66 0.30 Reach-1 12707 002-ULT RevEx-FP-Ult 2750.00 475.40 488.98 489.01 0.000097 1.39 2001.54 216.07 0.08 Reach-1 12707 002-ULT PostProj-FP-ULT 2750.00 475.40 488.77 478.79 488.80 0.000029 1.46 1880.94 170.50 0.08 Reach-1 12707 100-ULT RevEx-FP-Ult 8250.00 475.40 494.24 494.34 0.000200 2.61 3777.21 517.41 0.12 Reach-1 12707 100-ULT PostProj-FP-ULT 8250.00 475.40 493.32 481.32 493.47 0.000088 3.09 2683.16 222.31 0.14 Reach-1 12868 002-ULT RevEx-FP-Ult 2750.00 476.69 488.91 489.09 0.001163 3.93 947.82 195.15 0.24 Reach-1 12868 002-ULT PostProj-FP-ULT 2750.00 476.69 488.67 488.86 0.001313 4.13 901.13 190.23 0.25 Reach-1 12868 100-ULT RevEx-FP-Ult 8250.00 476.69 494.19 494.44 0.001078 5.25 2581.27 460.74 0.25 Reach-1 12868 100-ULT PostProj-FP-ULT 8250.00 476.69 493.21 493.56 0.001610 6.10 2158.54 394.61 0.30 Reach-1 12957 002-ULT RevEx-FP-Ult 2750.00 476.81 488.94 489.28 0.002967 4.71 599.15 152.20 0.36 Reach-1 12957 002-ULT PostProj-FP-ULT 2750.00 476.81 488.71 489.09 0.003437 4.95 564.93 141.24 0.39 Reach-1 12957 100-ULT RevEx-FP-Ult 8250.00 476.81 494.26 494.55 0.001308 4.94 2412.58 547.53 0.27 HEC-RAS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Plan Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 12957 100-ULT PostProj-FP-ULT 8250.00 476.81 493.30 493.75 0.002150 5.93 1914.90 479.96 0.34 Reach-1 14600 002-ULT RevEx-FP-Ult 2750.00 486.40 493.19 493.34 0.001947 4.20 1043.64 343.32 0.31 Reach-1 14600 002-ULT PostProj-FP-ULT 2750.00 486.40 493.21 493.37 0.001902 4.16 1052.74 344.23 0.30 Reach-1 14600 100-ULT RevEx-FP-Ult 8250.00 486.40 496.81 497.03 0.001591 5.23 2509.30 461.95 0.30 Reach-1 14600 100-ULT PostProj-FP-ULT 8250.00 486.40 496.75 496.98 0.001638 5.28 2482.65 460.17 0.30 Reach-1 17970 002-ULT RevEx-FP-Ult 2750.00 497.00 504.52 504.52 505.43 0.012393 8.62 490.89 300.31 0.73 Reach-1 17970 002-ULT PostProj-FP-ULT 2750.00 497.00 504.51 504.51 505.40 0.012352 8.48 490.62 299.46 0.72 Reach-1 17970 100-ULT RevEx-FP-Ult 8250.00 497.00 506.43 506.43 507.73 0.014614 11.91 1192.88 430.58 0.84 Reach-1 17970 100-ULT PostProj-FP-ULT 8250.00 497.00 506.40 506.40 507.71 0.014787 11.84 1182.43 428.55 0.84 Reach-1 18085 002-ULT RevEx-FP-Ult 2750.00 495.40 505.64 505.74 0.000439 2.51 1118.16 194.09 0.17 Reach-1 18085 002-ULT PostProj-FP-ULT 2750.00 495.40 505.61 505.70 0.000446 2.52 1111.41 193.00 0.17 Reach-1 18085 100-ULT RevEx-FP-Ult 8250.00 495.40 507.82 508.29 0.001511 5.58 1616.58 262.63 0.32 Reach-1 18085 100-ULT PostProj-FP-ULT 8250.00 495.40 507.80 508.28 0.001522 5.59 1611.63 262.03 0.33 Reach-1 18125 002-ULT RevEx-FP-Ult 2750.00 495.80 505.66 505.75 0.000369 2.42 1151.29 182.34 0.16 Reach-1 18125 002-ULT PostProj-FP-ULT 2750.00 495.80 505.63 505.72 0.000374 2.43 1145.04 181.60 0.16 Reach-1 18125 100-ULT RevEx-FP-Ult 8250.00 495.80 507.89 508.35 0.001345 5.49 1615.50 239.43 0.31 Reach-1 18125 100-ULT PostProj-FP-ULT 8250.00 495.80 507.88 508.34 0.001354 5.50 1611.19 238.86 0.31 Reach-1 18670 002-ULT RevEx-FP-Ult 2750.00 498.40 505.92 506.11 0.001073 3.48 790.25 135.04 0.25 Reach-1 18670 002-ULT PostProj-FP-ULT 2750.00 498.40 505.89 506.08 0.001088 3.50 786.19 134.80 0.26 Reach-1 18670 100-ULT RevEx-FP-Ult 8250.00 498.40 508.75 509.48 0.002767 6.88 1204.65 161.18 0.43 Reach-1 18670 100-ULT PostProj-FP-ULT 8250.00 498.40 508.73 509.47 0.002782 6.89 1202.70 161.03 0.43 Reach-1 18786 002-ULT RevEx-FP-Ult 2750.00 499.00 506.06 506.31 0.002320 4.01 685.44 122.07 0.30 Reach-1 18786 002-ULT PostProj-FP-ULT 2750.00 499.00 506.04 506.29 0.002349 4.03 682.02 121.84 0.30 Reach-1 18786 100-ULT RevEx-FP-Ult 8250.00 499.00 509.13 510.00 0.006358 7.51 1098.55 147.71 0.49 Reach-1 18786 100-ULT PostProj-FP-ULT 8250.00 499.00 509.12 509.99 0.006380 7.52 1097.07 147.63 0.49 Reach-1 18835 Bridge Reach-1 18884 002-ULT RevEx-FP-Ult 2750.00 499.50 506.29 502.90 506.57 0.002628 4.22 652.34 119.78 0.32 Reach-1 18884 002-ULT PostProj-FP-ULT 2750.00 499.50 506.27 502.90 506.54 0.002658 4.24 649.34 119.57 0.32 Reach-1 18884 100-ULT RevEx-FP-Ult 8250.00 499.50 509.77 506.10 510.61 0.006054 7.37 1120.11 148.93 0.47 Reach-1 18884 100-ULT PostProj-FP-ULT 8250.00 499.50 509.76 506.10 510.61 0.006069 7.37 1118.99 148.86 0.47 Reach-1 18969 002-ULT RevEx-FP-Ult 2750.00 499.90 506.48 506.75 0.001748 4.12 666.84 127.54 0.32 Reach-1 18969 002-ULT PostProj-FP-ULT 2750.00 499.90 506.46 506.73 0.001770 4.14 663.97 127.36 0.32 Reach-1 18969 100-ULT RevEx-FP-Ult 8250.00 499.90 510.24 510.97 0.002777 6.88 1205.27 163.89 0.43 Reach-1 18969 100-ULT PostProj-FP-ULT 8250.00 499.90 510.23 510.97 0.002784 6.89 1204.28 163.85 0.43 Reach-1 19609 002-ULT RevEx-FP-Ult 2750.00 503.00 508.04 508.55 0.004562 5.73 479.85 115.25 0.49 Reach-1 19609 002-ULT PostProj-FP-ULT 2750.00 503.00 508.04 508.55 0.004581 5.74 479.15 115.20 0.50 Reach-1 19609 100-ULT RevEx-FP-Ult 8250.00 503.00 512.30 513.27 0.004391 7.92 1042.28 149.19 0.53 Reach-1 19609 100-ULT PostProj-FP-ULT 8250.00 503.00 512.30 513.27 0.004394 7.92 1042.01 149.17 0.53 Reach-1 19659 002-ULT RevEx-FP-Ult 2750.00 503.30 508.20 508.92 0.007094 6.83 402.47 103.39 0.61 Reach-1 19659 002-ULT PostProj-FP-ULT 2750.00 503.30 508.19 508.92 0.007121 6.84 401.93 103.34 0.61 Reach-1 19659 100-ULT RevEx-FP-Ult 8250.00 503.30 512.37 513.65 0.006273 9.08 908.30 138.22 0.62 Reach-1 19659 100-ULT PostProj-FP-ULT 8250.00 503.30 512.37 513.65 0.006277 9.09 908.06 138.20 0.62 Reach-1 19709 002-ULT RevEx-FP-Ult 2750.00 503.60 508.48 508.48 510.29 0.019710 10.80 254.71 70.38 1.00 Reach-1 19709 002-ULT PostProj-FP-ULT 2750.00 503.60 508.48 508.48 510.29 0.019712 10.80 254.70 70.38 1.00 Reach-1 19709 100-ULT RevEx-FP-Ult 8250.00 503.60 512.48 512.48 515.11 0.017368 13.02 633.85 120.54 1.00 Reach-1 19709 100-ULT PostProj-FP-ULT 8250.00 503.60 512.48 512.48 515.11 0.017368 13.02 633.85 120.54 1.00 Reach-1 19759 002-ULT RevEx-FP-Ult 2750.00 503.80 509.89 509.89 511.62 0.024647 10.55 260.75 75.58 1.00 Reach-1 19759 002-ULT PostProj-FP-ULT 2750.00 503.80 509.89 509.89 511.62 0.024648 10.55 260.75 75.58 1.00 Reach-1 19759 100-ULT RevEx-FP-Ult 8250.00 503.80 513.60 513.60 516.41 0.020890 13.45 615.78 117.16 1.00 Reach-1 19759 100-ULT PostProj-FP-ULT 8250.00 503.80 513.60 513.60 516.41 0.020890 13.45 615.78 117.16 1.00 Reach-1 19794 002-ULT RevEx-FP-Ult 2525.00 503.90 511.53 511.53 513.16 0.025809 10.23 246.83 76.20 1.00 Reach-1 19794 002-ULT PostProj-FP-ULT 2525.00 503.90 511.53 511.53 513.16 0.025812 10.23 246.82 76.20 1.00 Reach-1 19794 100-ULT RevEx-FP-Ult 6960.00 503.90 515.59 514.71 517.19 0.016784 10.14 686.30 157.49 0.86 Reach-1 19794 100-ULT PostProj-FP-ULT 6960.00 503.90 515.59 514.71 517.19 0.016784 10.14 686.30 157.49 0.86 Reach-1 19944 002-ULT RevEx-FP-Ult 2525.00 505.60 514.51 514.51 516.28 0.014903 10.91 277.55 124.59 0.81 Reach-1 19944 002-ULT PostProj-FP-ULT 2525.00 505.60 514.51 514.51 516.28 0.014903 10.91 277.55 124.59 0.81 Reach-1 19944 100-ULT RevEx-FP-Ult 6960.00 505.60 517.82 517.82 519.36 0.010217 12.26 1022.23 312.20 0.72 Reach-1 19944 100-ULT PostProj-FP-ULT 6960.00 505.60 517.82 517.82 519.36 0.010217 12.26 1022.23 312.20 0.72 Reach-1 20069 002-ULT RevEx-FP-Ult 2525.00 505.80 516.68 516.97 0.001882 5.25 814.09 235.13 0.32 Reach-1 20069 002-ULT PostProj-FP-ULT 2525.00 505.80 516.68 516.97 0.001882 5.25 814.09 235.13 0.32 Reach-1 20069 100-ULT RevEx-FP-Ult 6960.00 505.80 519.61 520.17 0.002985 8.07 1672.02 380.11 0.42 Reach-1 20069 100-ULT PostProj-FP-ULT 6960.00 505.80 519.61 520.17 0.002985 8.07 1672.02 380.11 0.42 Reach-1 20279 002-ULT RevEx-FP-Ult 2525.00 506.00 517.13 517.17 0.000445 2.27 1571.29 339.02 0.15 Reach-1 20279 002-ULT PostProj-FP-ULT 2525.00 506.00 517.13 517.17 0.000445 2.27 1571.29 339.02 0.15 Reach-1 20279 100-ULT RevEx-FP-Ult 6960.00 506.00 520.37 520.49 0.000683 3.61 2834.63 432.68 0.20 HEC-RAS River: RIVER-1 Reach: Reach-1 (Continued) Reach River Sta Profile Plan Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) Reach-1 20279 100-ULT PostProj-FP-ULT 6960.00 506.00 520.37 520.49 0.000683 3.61 2834.63 432.68 0.20 Reach-1 20479 002-ULT RevEx-FP-Ult 2525.00 506.10 517.10 517.36 0.002169 4.94 830.90 280.21 0.32 Reach-1 20479 002-ULT PostProj-FP-ULT 2525.00 506.10 517.10 517.36 0.002169 4.94 830.90 280.21 0.32 Reach-1 20479 100-ULT RevEx-FP-Ult 6960.00 506.10 520.39 520.69 0.002039 6.13 2029.72 426.32 0.33 Reach-1 20479 100-ULT PostProj-FP-ULT 6960.00 506.10 520.39 520.69 0.002039 6.13 2029.72 426.32 0.33 Reach-1 20779 002-ULT RevEx-FP-Ult 2525.00 507.00 517.83 518.14 0.003720 5.97 787.36 348.53 0.41 Reach-1 20779 002-ULT PostProj-FP-ULT 2525.00 507.00 517.83 518.14 0.003720 5.97 787.36 348.53 0.41 Reach-1 20779 100-ULT RevEx-FP-Ult 6960.00 507.00 520.99 521.23 0.002154 5.87 2112.92 485.33 0.33 Reach-1 20779 100-ULT PostProj-FP-ULT 6960.00 507.00 520.99 521.23 0.002154 5.87 2112.92 485.33 0.33 Reach-1 22510 002-ULT RevEx-FP-Ult 2525.00 511.80 521.83 522.10 0.002880 5.83 1049.27 605.41 0.36 Reach-1 22510 002-ULT PostProj-FP-ULT 2525.00 511.80 521.83 522.10 0.002880 5.83 1049.27 605.41 0.36 Reach-1 22510 100-ULT RevEx-FP-Ult 6960.00 511.80 523.88 524.09 0.002568 6.39 2498.69 787.15 0.35 Reach-1 22510 100-ULT PostProj-FP-ULT 6960.00 511.80 523.88 524.09 0.002568 6.39 2498.69 787.15 0.35