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PA1301-CS130506 Conditional Letter of Map Revision Denton Creek at New Pedestrian Bridge (@ Moore Rd. Lake) Prepared For: Prepared By: COPPELL ;r t n p League nail & perkins City of Coppell 265 Parkway Blvd. 1100 Macon St. Coppell, TX 75019 Fort Worth, TX 76102 •0* •• , rF•1s,fl . *� KYLE J. DYKES '1•.• 99378 ° 1 ••<°.'" • CENSEO.G�� ". Ala 30 4PR Zo /q April 2014 0 Denton Creek CLOMR—New Pedestrian Bridge (Q@ Moore Rd. Lake) " ',, to P league nail R parkins Table of Contents Background 1 Project Location 1 Effective Data 1 Hydraulic Modeling 1 Model Descriptions 2 Modeling Parameters 3 Conclusion 3 Appendices APPENDIX A— EXHIBITS o Exhibit 1: Topographic Workmap o Exhibit 2: Bridge Layout & Details o Exhibit 3: Firmette APPENDIX B.1 — HYDRAULIC DATA (FEMA Effective) o HEC-RAS Standard Summary (All Plans) APPENDIX B.2 — HYDRAULIC DATA (USACE Update) o Hydraulic Analysis Summary o Exhibit B.2-1 Topographic Workmap o HEC-RAS Standard Summary (All Plans) APPENDIX C— FEMA FORMS & ESA LETTER o Payment Information Form o MT-2 Form 1 —Overview and Concurrence o MT-2 Form 2 — Riverine Hydrology & Hydraulics o MT-2 Form 3 — Riverine Structures o ESA Compliance— Letter of No Effect APPENDIX D—COMPACT DISK o CLOMR Application Package (PDF) o HEC-RAS Model o FEMA Digital Data (Received) o GIS Shapefiles Fort Worth.•1100 Macon Street a Fort Worth,Texas 76102 a 817.336.5773 A Dallas 17304 Preston Road,Suite 1340 a Dallas,Texas 75252 a 214.461.9867 Denton 1517 Centre Place Drive,Suite 320 a Denton,Texas 76205 a 940.383.4177 A bermen 200 North Travis Street,Suite 500 a Sherman,Texas 75090 a 903.870.1089 Registered by the Texas Board of Professional Engineers,Firm No.F-230 a Registered by the Texas Board of Professional Surveyors,Firm No.100116-00 Denton Creek CLOMR—New Pedestrian Bridge (@ Moore Rd. Lake) f. tnp teague nail&perkins Background Teague Nall and Perkins, Inc. (TNP) was contracted by the City of Coppell to design a new pedestrian bridge across Denton Creek. The purpose for the bridge is to provide a safe connection between the existing trails on either side of the creek. The north abutment is situated on a levee owned by the Denton County Levee Improvement District #1, and the south abutment sits on high ground that separates Denton Creek from Moore Rd. Lake. The bridge will clear span the main channel area completely, which coincides with the effective flow area as determined by the effective hydraulic model. The bridge will also span the effective floodway, provide 2.6' to 5.5' (ft) of freeboard to the 100- yr base flood elevation, and cause no increase in 100-yr water surfaces. The controlling design criteria is to cause no rise using the updated study; Corridor Development Certificate — Upper Trinity River, Texas Hydrologic and Hydraulic Model Update in Partnership with the North Central Texas Council of Governments, Denton Creek, May 2013 (US Army Corp. of Engineers). Using that criteria results in additional freeboard in the effective model. The following summary and attached data document the project and provide support for a Conditional Letter of Map Revision (LOMR) request from FEMA. Project Location The proposed bridge will be located approximately 1,650 linear feet (along the stream) upstream of MacArthur Blvd., near the north corner of Moore Rd. Lake. This location is more specifically identified as crossing Denton Creek immediately upstream of the existing sanitary sewer crossing (with concrete cap) that is visible on Exhibit 1. Effective Data Effective FIS data was requested from FEMA via a digital data request in January 2014. Upon request, FEMA provided HEC-2 models for the multi-profile run and floodway run from a previous LOMR (Case No.: 97-06-503P). Effective mapping is shown on FIRM Panel 481 13C0155J, dated August 23, 2001. Table 1: Peak Discharge Summary(project reach only) Study ID 10-YR 50-YR 100-YR 500-YR (CFS) (CFS) (CFS) (CFS) Effective FIS 12,800 18,200 20,600 36,200 USACE Update(5/2013)1 14,500 19,000 21,000 55,500 1 These flows used for bridge sizing but NOT for the CLOMR. Study title: Corridor Development Certificate— Upper Trinity River, Texas Hydrologic and Hydraulic Model Update in Partnership with the North Central Texas Council of Governments, Denton Creek, May 2013. Hydraulic Modeling The following paragraphs summarize the hydraulic models that were obtained and created for this project. Only FEMA models obtained through the digital data request have been used for the basis of this CLOMR. HEC-RAS standard summaries are provided in Appendix B.1, and digital models in Appendix D (compact disk). 1 Denton Creek CLOMR-New Pedestrian Bridge (@ Moore Rd. Lake) to p teague nail&perkins Note: The USACE update models are described in Appendix 8.2 and digital models provided in Appendix D (compact disk). Model Descriptions(See also Table 2-Water Surface Comparison,and Exhibit 1 -Topographic Workmap) y Duplicate Effective (DCEXIST) - The HEC-2 model from LOMR 97-06-503P (Dated July 3, 1997) was imported into HEC-RAS. The one bridge crossing was adjusted to have 1' to the upstream/downstream sections, and duplicate geometry points were omitted. Upon these changes the model ran successfully and duplicated the exact water surfaces reported in the LOMR. Note: These water surfaces are approximately 6" lower than the BFE lines (in the project area) shown on the effective FIRM Panel 481 13C0155J, dated August 23, 2001. > Revised Existing (REV_EX) - This model modifies the DCEXIST model by adding sections 24585, 24620, and 24660; and revises section 24700 to reflect survey data obtained for this project. This model results in a maximum increase in water surface of 0.86' (compared to DCEXIST) at section 24700, and ties in at section 36970. Mannings 'n' values were kept consistent with the DCEXIST model. Proposed (DC_PROP) - This model revises the REV_EX model by adding a new pedestrian bridge at station 24640 (see Appendix A - Exhibit 2 Bridge Layout & Details). The new bridge consists of a single 220' (ft) clear span over the main channel and floodway. The HEC-RAS bridge deck tool was used to represent obstruction of the deck, railing, abutments, and trail approaches. No other grading is anticipated for the project. Table 2: Water Surface Elevation Comparison EFFECTIVE FLOWS SECTION Q-100 ID DUP-EFF REV-EX DELTA PROP DELTA (cfs) WSEL WSEL (1) (2) (2)-(1) (3) (3)-(2) 32200 21,300 456.94 457.04 0.10 457.04 0.00 32150 21,300 457.45 457.57 0.12 457.57 0.00 31230 21,300 456.87 457.02 0.15 457.02 0.00 30570 21,300 456.68 456.83 0.15 456.83 0.00 29610 21,300 456.34 456.52 0.18 456.52 0.00 28870 21,300 456.12 456.31 0.19 456.31 0.00 28080 21,300 455.49 455.73 0.24 455.73 0.00 26830 21,300 454.74 455.07 0.33 455.07 0.00 25530 20,600 453.67 454.24 0.57 454.24 0.00 24700 20,600 453.45 454.31 0.86 454.31 0.00 24660 20,600 -- 454.3 -- 454.30 0.00 24640 20,600 -- -- -- Ped. Bridge 24620 20,600 -- 454.30 -- 454.30 0.00 24585 20,600 -- 453.39 -- 453.39 0.00 23800 20,600 452.98 452.98 0.00 452.98 0.00 22370 20,600 452.58 452.58 0.00 452.58 0.00 21560 20,600 452.39 452.39 0.00 452.39 0.00 19930 20,600 452.25 452.25 0.00 452.25 0.00 2 Denton Creek CLOMR—New Pedestrian Bridge (@ Moore Rd. Lake) to League nail&perkins Modeling Parameters Reach Length — Reach lengths were measured for sections 24700, 24660, and 24620. The reach length for section 24585 equals the original lengths for section 24700 minus the added sections. This approach maintains the original length of stream. Mannings 'n' — Manning's roughness coefficients were carried over from the effective model (DCEXIST) and were applied to the new sections at corresponding horizontal locations. These values were also confirmed with visual observations to reflect actual field conditions. Contraction/Expansion — Contraction/expansion coefficients were not increased above 0.1/0.3 (respectively) at the bridge since the bridge clear spans the conveyance area. Conclusion The proposed bridge provides approximately 2.6' to 5.5' (ft) of freeboard to the revised effective BFE and will not cause a rise in BFE at any point. Furthermore, the proposed bridge will span the entire floodway and conveyance area. The proposed new pedestrian bridge will adhere to both NFIP and City of Coppell criteria by passing a 100-year storm with one (1) foot of freeboard to the low-chord of the bridge. Although a LOMR will be required following the project, no revisions are anticipated for actual floodplain delineation on the FIRM. The attached data, exhibits, and models are provided in support of this request for a Conditional Letter of Map Revision to reflect the new bridge and its impact on Denton Creek. C 3 APPENDIX A EXHIBITS: o Exhibit 1 : Topographic Workmap o Exhibit 2: Bridge Layout & Details o Exhibit 3: Firmette \ N .. _. 9 6" ..,_'• • ,., _ . t ..i.r-- ir.... i i. 0 „..., \ ,c-----,-- .-P • .1 _,, , . 4 C ,...=. co 7 '‘ 1 a = Min . 14 I •::14:11.\ %,' Ni... A.:: **IP -t ' \ 14k.s Ili .r-e.\: 44 V ' %,: ,.., 3 . t."(:) ,, . CL • N„..• ,';'4•4 t *,..- 1 - r 3 - •... N., . 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E.G.Men E.G.Slope Vel ChM Flow Area Top;MON Froude C Chl (cis) (6) (6) (8) (8) (6M) (Ns) (sq 8) (6) Reach-1 56940 10 4000.00 449.00 470.89 471.07 0.000404 3.55 1301.80 170.01 0.17 Reach-1 56940 50 7000.00 449.00 473.52 473.79 0.000586 4.59 2247.18 874.57 0.20 Reach-1 56940 100 9400.00 449.00 474.50 474.79 0.000869 5.06 3389.16 1458.09 0.22 Reach-1 56940 500 38200.00 449.00 479.30 479.47 0.000538 5.39 14792.31 2585.60 0.21 Reach-1 55590 10 4000.00 452.40 470.14 470.38 0.000660 3.98 1010.71 88.80 0.21 Reach-1 55590 50 7000.00 452.40 472.33 472.76 0.001016 5.44 1899.11 1167.29 0.28 Reach-1 55590 100 9400.00 452.40 473.25 473.67 0.001068 5.83 3089.45 1412.21 0.27 Reach-1 55590 500 36200.00 452.40 478.39 478.62 0.000809 6.22 13044.07 2300.35 0.25 Reach-1 53350 10 4000.00 448.00 489.79 489.85 0.000106 2.07 2360.92 330.91 0.09 Reach-1 53350 50 7000.00 448.00 471.81 471.90 0.000170 2.84 3999.70 1387.31 0.12 Reach-1 53350 100 9400.00 448.00 472.57 472.68 0.000218 3.31 5302.98 2178.41 0.14 Reach-1 53350 500 36200.00 448.00 477.88 477.93 0.000161 3.38 25490.38 4228.78 0.12 Reach-1 51350 10 4000.00 446.50 469.51 489.58 0.000172 2.23 2105.93 653.16 0.11 Reach-1 51350 50 7000.00 446.50 471.32 471.39 0.000460 2.37 4032.33 1382.54 0.17 Reach-1 51350 100 9400.00 446.50 471.99 472.08 0.000497 2.64 4980.34 1438.28 0.18 Reach-1 51350 500 38200.00 446.50 477.44 477.53 0.000344 3.22 16731.41 2452.71 0.16 Reach-1 48000 10 5300.00 445.60 468.74 468.83 0.000272 2.98 3392.23 1285.32 0.14 Reach-1 48000 50 8000.00 445.80 - 470.13 470.21 0.000272 3.16 5358.66 1484.51 0.14 Reach-1 48000 100 9800.00 445.60 470.88 470.77 0.000299 3.39 6183.81 1537.06 0.15 Reach-1 48000 500 36200.00 445.80 476.13 476.26 0.000374 4.58 15179.98 1776.22 0.17 Reach-1 40650 10 6800.00 440.00 465.94 468.20 0.000580 4.33 1990.80 604.36 0.19 Reach-1 40650 50 9100.00 440.00 467.61 467.85 0.000535 4.53 3176.04 788.67 0.19 Reach-1 40650 100 10200.00 440.00 488.14 468.38 0.000533 4.82 3602.25 822.84 0.19 Reach-1 40850 500 38200.00 440.00 472.18 472.81 0.001363 8.47 7248.88 990.70 0.32 Reach-1 39540 10 9900.00 442.00 464.58 465.17 0.001382 6.48 1935.64 604.75 0.31 Reach-1 39540 50 13700.00 442.00 466.39 486.93 0.001178 6.55 3258.95 820.79 0.30 Reach-1 39540 100 15400.00 442.00 466.93 467.46 0.001166 6.67 3716.21 864.32 0.30 Reach-1 39540 500 38200.00 442.00 470.74 471.36 0.001342 8.29 7398.08 1021.13 0.33 Reach-1 39490 10 10000.00 442.00 464.76 465.01 0.000725 4.06 2683.98 457.87 0.23 C Reach-1 39490 50 13800.00 442.00 466.53 488.81 0.000770 4.42 3541.43 529.45 0.24 Reach-1 39490 100 15600.00 442.00 487.04 467.35 0.000831 4.66 3819.10 547.43 0.25 Reach-1 39490 500 36200.00 442.00 470.63 471.29 0.001385 7.05 5969.32 864.67 0.33 Reach-1 39440 10 10000.00 442.00 484.19 464.91 0.001612 8.90 1726.31 549.50 0.34 Reach-1 39440 50 13800.00 442.00 486.04 488.71 0.001452 7.18 2975.93 783.18 0.33 Reach-1 39440 100 15600.00 442.00 486.57 46726 0.001481 7.40 3404.90 83728 0.33 Reach-1 39440 500 38200.00 442.00 470.42 47120 0.001893 9.20 7064.24 1014.38 0.37 Reach-1 39290 10 10000.00 441.88 484.51 484.62 0.000333 3.19 4779.42 920.51 0.16 Reach-1 39290 50 13800.00 441.88 466.34 466.44 0.000296 3.26 6525.20 995.99 0.15 Reach-1 39290 100 15600.00 441.88 488.88 486.97 0.000309 3.40 7057.06 1021.04 0.16 Reach-1 39290 500 36200.00 441.88 470.66 470.87 0.000477 4.87 11202.71 1156.25 0.20 Reach-1 38200 10 10000.00 441.00 464.18 484.26 0.000306 2.87 5093.44 1111.70 0.15 Reach-1 38200 50 13800.00 441.00 466.05 468.13 0.000265 2.88 7238.15 1182.96 0.14 Reach-1 38200 100 15600.00 441.00 488.56 488.65 0.000283 2.96 7853.63 1214.14 0.14 Reach-1 38200 500 38200.00 441.00 470.21 470.36 0.000432 4.16 12862.62 1493.43 0.19 Reach-1 38970 10 10000.00 440.00 483.33 483.65 0.001068 5.03 2740.08 641.02 0.27 Reach-1 38970 50 13800.00 440.00 485.37 485.82 0.000858 4.77 4394.51 958.88 0.24 Reach-1 36970 100 15800.00 440.00 485.88 486.12 0.000875 4.94 4883.57 1058.33 0.25 Reach-1 36970 500 38200.00 440.00 469.34 489.87 0.000988 8.20 10280.18 1893.04 0.27 Reach-1 34950 10 9400.00 439.30 459.87 460.64 0.002202 7.02 1338.45 126.34 0.38 Reach-1 34950 50 13200.00 439.30 462.41 463.03 0.002101 8.74 2831.86 1139.94 0.37 Reach-1 34950 100 14900.00 439.30 463.57 483.92 0.001393 5.52 4474.18 1885.09 0.31 Reach-1 34950 500 36200.00 439.30 467.72 487.91 0.000739 4.82 12249.82 1944.31 0.23 Reach-1 34850 10 9400.00 439.30 459.60 453.15 460.41 0.002385 7.21 1304.14 124.92 0.39 Reach-1 34850 50 13200.00 439.30 481.66 455.37 482.73 0.003182 8.31 1588.94 524.86 0.46 Reach-1 34850 100 14900.00 439.30 482.48 458.14 483.83 0.003485 8.68 1720.25 831.97 0.48 Reach-1 34850 500 36200.00 439.30 487.17 484.00 487.75 0.001970 7.65 7604.19 1553.31 0.38 Reach-1 34260 10 9400.00 438.80 459.38 453.70 459.52 0.000692 3.01 3127.80 414.88 0.19 Reach-1 34280 50 13200.00 438.80 481.58 454.45 481.72 0.000655 3.20 4119.18 924.44 0.21 Reach-1 34280 100 14900.00 438.80 482.45 454.76 462.61 0.000611 3.22 4832.57 992.39 0.20 Reach-1 34280 500 36200.00 438.80 466.84 457.89 487.04 0.000824 3.90 11581.81 1970.00 0.20 Reach-1 33470 10 9400.00 439.00 458.51 448.98 458.84 0.001042 4.57 2055.87 278.83 0.30 Reach-1 33470 50 13200.00 439.00 480.66 450.87 481.01 0.001223 4.82 2825.14 1132.17 0.30 C Reach-1 33470 100 14900.00 439.00 461.58 451.00 461.92 0.001283 4.76 3314.89 1717.12 0.30 Reach-1 33470 500 36200.00 439.00 488.54 459.43 488.67 0.000476 3.57 14968.18 2770.00 0.19 'I 1 f 1 C. HEC-RAS Plan:DCIXIST River RIVER-1 Reach:Reach-1(Continued) Reach River Sta Profile Cl Total Min Ch El W.S.Elev ea W.S. E.G.Elev E.G.Slope Vel Chill Flow Area Top Width Fronde a Chl ( ) (8) (6) (8) (6) (11/8) (8s) (5Q 8) (8) Reach-1 33145 10 9400.00 438.40 458.22 450.49 458.42 0.001326 3.82 2597.61 402.88 0.24 Reach-1 33145 50 13200.00 438.40 480.35 453.83 460.58 0.001192 3.88 3408.23 1381.33 0.23 Reach-1 33145 100 14900.00 438.40 481.26 454.18 461.50 0.001129 3.93 3833.90 2301.23 0.23 Reach-1 33145 500 36200.00 438.40 486.48 457.76 486.54 0.000297 2.37 21124.32 4178.91 0.12 Reach-1 32725 10 9400.00 438.20 457.71 457.95 0.000986 4.60 2964.99 640.20 0.26 Reach-1 32725 50 13200.00 438.20 480.04 460.20 0.000694 4.02 5038.48 1411.84 0.22 Reach-1 32725 100 14900.00 438.20 461.03 481.15 0.000572 3.49 6506.37 2129.11 020 $ Reach-1 32725 500 36200.00 438.20 466.39 466.45 0.000229 2.87 21673.23 3909.47 0.13 Reach-1 32305 10 9400.00 437.70 455.66 457.00 0.005969 9.63 1082.78 196.79 0.61 Reach-1 32305 50 13200.00 437.70 458.60 459.53 0.003878 8.33 1830.74 308.51 0.50 Reach-1 32305 100 14900.00 437.70 459.80 460.59 0.003161 7.78 2235.53 372.84 0.46 Reach-1 32305 500 36200.00 437.70 466.19 486.29 0.000490 3.82 16800.86 3858.07 0.19 Reach-1 32250 10 9400.00 437.00 456.18 458.83 0.000859 5.44 1826.19 231.18 0.25 Reach-1 32250 50 13200.00 437.00 458.80 459.32 0.000920 6.02 2791.73 773.03 0.26 Reach-1 32250 100 14900.00 437.00 459.98 460.41 0.000795 5.75 3977.14 1166.59 0.24 Reach-1 32250 500 36200.00 437.00 466.16 468.27 0.000274 4.13 18693.97 2896.81 0.15 Reach-1 32230 10 13300.00 435.00 454.49 450.43 456.48 0.000874 11.48 1214.88 128.46 0.61 Reach-1 32230 50 18900.00 435.00 456.32 453.75 459.09 0.001172 13.65 1484.16 145.45 0.70 Reach-1 32230 100 21300.00 435.00 457.14 454.70 480.15 0.001245 14.24 1587.67 153.68 0.72 I Reach-1 32230 500 36200.00 435.00 482.65 459.38 485.95 0.001138, 15.20 2874.78 475.11 0.89 i a Reach-1 32215 Bridge I Reach-1 32200 10 13300.00 435.00 454.40 458.43 0.000888 11.59 1203.58 127.73 0.61 1 Reach-1 32200 50 18900.00 435.00 456.13 459.01 0.001221 13.90 1436.79 143.56 0.72 Reach-1 32200 100 21300.00 435.00 456.91 460.05 0.001311 14.56 1551.76 151.34 0.74 I Reach-1 32200 500 38200.00 435.00 459.38 459.38 465.16 0.002281 19.86 1956.18 175.96 0.97 Reach-1 32150 10 13300.00 437.00 454.79 455.93 0.001404 8.60 1801.31 146.87 0.41 Reach-1 32150 50 18900.00 437.00 458.63 458.35 0.001928 10.61 1933.43 243.69 0.48 I Reach-1 32150 100 21300.00 437.00 457.45 459.34 0.002057 11.20 2142.54 266.39 0.50 1 Reach-1 32150 500 36200.00 437.00 180.65 182.85 0.002411 13.16 4832.88 1379.86 0.55 Reach-1 31230 10 13300.00 438.10 454.26 454.74 0.000852 5.52 2407.36 243.67 0.31 Reach-1 31230 50 18900.00 438.10 456.07 456.74 0.001072 6.56 3001.98 452.31 0.35 1 Reach-1 31230 100 21300.00 438.10 456.87 457.58 0.001180 6.77 3403.24 547.55 0.37 Reach-1 31230 500 36200.00 438.10 459.78 460.66 0.001597 7.96 5866.84 1288.67 0.43 Reach-1 30570 10 13300.00 438.23 453.97 454.24 0.000588 4.48 3949.74 708.85 027 Reach-1 30570 50 18900.00 438.23 455.85 456.13 0.000592 4.73 5364.85 796.03 0.27 Reach-1 30570 100 21300.00 438.23 458.68 458.95 0.000586 4.72 8039.21 842.47 0.27 Reach-1 30570 500 36200.00 438.23 459.53 459.88 0.000653 5.46 8826.20 1405.71 0.32 Reach-1 29610 10 13300.00 437.40 453.61 453.79 0.000382 3.75 5085.35 928.89 0.21 Reach-1 29610 50 18900.00 437.40 455.50 455.88 0.000375 3.95 8887.85 981.52 0.21 Reach-1 29810 100 21300.00 437.40 458.34 456.52 0.000353 3.96 7729.40 1008.96 0.21 Reach-1 29610 500 38200.00 437.40 459.13 459.38 0.000428 4.81 10852.43 1103.55 0.24 Reach-1 28870 10 13300.00 438.30 453.17 453.45 0.000652 4.45 4335.41 1702.50 0.25 Reach-1 28870 50 18900.00 438.30 455.22 455.39 0.000461 3.93 8062.31 1978.36 0.22 Reach-1 28870 100 21300.00 438.30 458.12 456.25 0.000377 3.82 9914.79 2130.84 0.20 Reach-1 28870 500 36200.00 436.30 458.96 459.08 0.000313 3.57 16344.01 2438.04 0.19 Reach-1 28080 10 13300.00 435.20 452.83 453.02 0.000681 5.04 2883.58 702.94 0.28 Reach-1 28080 50 18900.00 435.20 454.54 454.98 0.000754 5.52 4411.83 927.08 0.30 Reach-1 28080 100 21300.00 435.20 455.49 455.88 0.000707 5.40 5358.94 1082.28, 0.29 Reach-1 28080 500 36200.00 435.20 458.33 458.71 0.000803 5.70 9198.38 1680.81 0.34 Reach-1 28830 10 13300.00 438.30 451.94 452.37 0.000796 5.27 2524.09 262.83 0.30 Reach-1 26830 50 18900.00 436.30 453.70 454.21 0.000945 5.88 3992.79 934.48 0.33 Reach-1 26830 100 21300.00 436.30 454.74 455.18 0.000832 563 4996.39 984.25 0.31 Reach-1 28830 500 36200.00 438.30 457.38 457.88 0.000967 8.43 7890.75 1100.98 0.38 Reach-1 25530 10 12800.00 434.40 451.08 451.49 0.000620 5.24 2444.91 217.10 0.27 Reach-1 25530 50 18200.00 434.40 452.38 453.04 0.000896 8.58 3089.48 1095.44 0.33 Reach-1 25530 100 20600.00 434,40 453.67 454.20 0.000725 6.16 5041.29 1807.19 0.30 Reach-1 25530 500 38200.00 434.40 456.41 458.88 0.000673 8.59 10508.96 2106.00 0.30 Reach-1 24700 10 12800.00 433.90 450.89 451.12 0.000338 2.87 3390.45 346.35 0.19 Reach-1 24700 50 18200.00 433.90 452.15 452.50 0.000476 3.74 3964.57 593.96 0.23 Reach-1 24700 100 20800.00 433.90 453.45 453.76 0.000419 3.81 5041.95 1048.00 0.22 Reach-i 24700 500 36200.00 433.90 456.12 458.44 0.000511 4.85 9980.58 2413.21 0.25 Reach-1 23800 10 12800.00 433.30 450.58 450.84 0.000376 2.83 3247.61 375.94 0.19 HEC-RAS Plan:DCEXIST River.RIVER-1 Reach:Reach-1(Continued) Reach River Sta Profile 0 Total MM Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Fronde 8 Chl (cfe) (8) (8) (6) (8) (8M) (8/s) (sq 6) (8) Reach-1 23800 50 18200.00 433.30 451.63 452.08 0.000602 2.83 3715.23 510.16 0.23 Reach-1 23800 100 20600.00 433.30 452.98 453.39 0.000532 2.54 4539.60 732.87 0.22 Reach-1 23800 500 36200.00 433.30 455.59 458.00 0.000673 3.57 7982.03 1897.18 0.26 Reach-1 22370 10 12800.00 432.50 450.34 450.51 0.000207 3.31 3872.13 301.52 0.16 Reach-1 22370 50 18200.00 432.50 451.24 451.53 0.000340 4.39 4145.24 305.53 0.21 Reach-1 22370 100 20800.00 432.50 452.58 452.89 0.000326 4.52 4823.30 530.39 0.21 Reach-1 22370 500 38200.00 432.50 454.46 455.15 0.000784 8.77 8308.34 1435.06 0.32 Reach-1 21560 10 12800.00 432.40 450.22 450.38 0.000148 2.97 4316.36 308.26 0.14 Reach-1 21560 50 18200.00 432.40 451.04 451.29 0.000253 3.98 4571.87 338.64 0.18 Reach-1 21560 100 20600.00 432.40 452.39 452.65 0.000249 4.11 5147.83 638.78 0.18 Reach-1 21560 500 38200.00 432.40 454.01 454.62 0.000537 6.38 6694.98 1177.73 0.27 Reach-1 19930 10 12800.00 432.00 450.09 450.17 0.000096 2.28 8421.40 1264.12 0.12 Reach-1 19930 50 18200.00 432.00 450.84 450.97 0.000154 2.96 7429.44 1427.08 0.15 Reach-1 19930 100 20600.00 432.00 452.25 452.38 0.000126 2.82 9601.12 1678.89 0.14 Reach-1 19930 500 36200.00 432.00 453.79 454.01 0.000240 4.12 12468.18 1948.70 0.19 Reach-1 19330 10 12800.00 431.70 450.07 450.11 0.000060 1.76 10578.96 2722.66 0.09 Reach-1 19330 50 18200.00 431.70 450.82 450.87 0.000084 2.16 12695.82 2921.31 0.10 Reach-1 19330 100 20600.00 431.70 452.25 452.28 0.000057 1.88 17123.88 3326.38 0.09 Reach-1 19330 500 38200.00 431.70 453.80 453.87 0.000092 2.55 22705.12 3740.50 0.11 Reach-1 18440 10 12800.00 431.40 449.70 449.25 449.97 0.002733 5.84 3895.78 2083.88 0.38 Reach-1 18440 50 18200.00 431.40 450.50 449.52 450.71 0.001865 5.04 5560.03 2586.88 0.32 Reach-1 18440 100 20600.00 431.40 452.12 449.69 452.20 0.000458 2.79 10301.42 3157.20 0.16 Reach-1 18440 500 36200.00 431.40 453.84 450.37 453.75 0.000459 3.11 15169.74 3248.40 0.17 ss�sw M CHEC-RAS Plan:REV_EX River.RIVER-1 Reach:Reach-1 Reach River Sha Profile Q Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Wdth Fmude*Ch1 (cis) (6) (ft) (8) (8) (M() (M) (eq 8) (8) Reach-1 56940 10 4000.00 449.00 470.89 471.07 0.000404 3.55 1301.92 170.02 0.17 Reach-1 56940 50 7000.00 449.00 473.52 473.79 0.000586 4.59 2247.18 874.57 0.20 Reach-1 56940 100 9400.00 449.00 474.50 474.79 0.000669 5.06 3389.25 1458.22 0.22 Reach-1 56940 500 36200.00 449.00 479.30 479.47 0.000538 5.39 14792.31 2585.60 0.21 Reach-1 55590 10 4000.00 452.40 470.14 470.38 0.000660 3.96 1010.79 88.81 0.21 Reach-1 55590 50 7000.00 452.40 472.33 472.76 0.001016 5.44 1899.15 1167.29 0.26 Reach-1 55590 100 9400.00 452.40 473.25 473.67 0.001066 5.83 3089.71 1412.25 0.27 Reach-1 55590 500 36200.00 452.40 478.39 478.62 0.000809 6.22 13044.07 2300.35 0.25 Reach-1 53350 10 4000.00 448.00 469.79 469.85 0.000106 2.07 2361.25 330.98 0.09 Reach-1 53350 50 7000.00 448.00 471.81 471.90 0.000170 2.84 3999.74 1387.33 0.12 Reach-1 53350 100 9400.00 448.00 472.57 472.88 0.000218 3.31 5303.58 2178.78 0.14 Reach-1 53350 500 38200.00 448.00 477.88 477.93 0.000161 3.38 25490.36 4228.78 0.12 Reach-1 51350 10 4000.00 446.50 489.51 469.59 0.000172 2.23 2106.55 653.81 0.11 Reach-1 51350 50 7000.00 446.50 471.32 471.39 0.000460 2.37 4032.42 1382.54 0.17 Reach-1 51350 100 9400.00 446.50 472.00 472.08 0.000497 2.64 4980.91 1438.31 0.18 Reach-1 51350 500 38200.00 446.50 477.44 477.53 0.000344 3.22 16731.41 2452.71 0.16 Reach-1 48000 10 5300.00 445.60 468.74 468.83 0.000272 2.98 3393.13 1285.58 0.14 Reach-1 48000 50 8000.00 445.60 470.13 470.21 0.000272 3.16 5358.88 1484.52 0.14 Reach-1 48000 100 9800.00 445.60 470.68 470.77 0.000299 3.39 6185.49 1537.17 0.15 Reach-1 48000 500 36200.00 445.80 478.13 476.28 0.000374 4.56 15179.93 1778.22 0.17 Reach-1 40650 10 6600.00 440.00 465.95 466.20 0.000559 4.33 1992.62 604.78 0.19 Reach-1 40650 50 9100.00 440.00 467.61 467.88 0.000534 4.53 3176.81 788.72 0.19 Reach-1 40650 100 1020000 440.00 488.14 488.38 0.000533 4.62 3802.60 822.86 0.19 Reach-1 40650 500 38200.00 440.00 472.18 472.81 0.001363 8.47 7248.79 990.70 0.32 Reach-1 39540 10 9900.00 442.00 484.58 465.18 0.001359 8.48 1939.26 605.66 0.31 Reach-1 39540 50 13700.00 442.00 468.39 486.93 0.001176 6.55 3280.20 820.95 0.30 Reach-1 39540 100 15400.00 442.00 468.94 487.46 0.001165 6.67 3716.95 884.38 0.30 Reach-1 39540 500 36200.00 442.00 470.74 471.38 0.001342 8.29 7397.85 1021.12 0.33 Reach-1 39490 10 10000.00 442.00 464.77 485.02 0.000724 4.05 28666.42 458.29 0.23 Reach-1 39490 50 13800.00 442.00 488.53 486.81 0.000770 4.42 3542.18 529.50 0.24 Reach-1 39490 100 15600.00 442.00 467.04 467.35 0.000831 4.66 3819.51 547.45 0.25 Reach-1 39490 500 36200.00 442.00 470.63 471.29 0.001386 7.05 5969.18 654.88 0.33 Reach-1 39440 10 10000.00 442.00 464.20 484.92 0.001608 6.89 1730.01 550.52 0.34 Reach-1 39440 50 13800.00 442.00 468.04 466.72 0.001451 7.16 2977.41 783.38 0.33 Reach-1 39440 100 15800.00 442.00 486.57 487.26 0.001480 7.40 3405.77 837.36 0.33 Reach-1 39440 500 36200.00 442.00 470.42 471.20 0.001693 9.20 7063.96 1014.37 0.37 Reach-1 39290 10 10000.00 441.88 484.52 464.82 0.000332 3.19 4785.07 920.76 0.16 Reach-1 39290 50 13800.00 441.88 466.34 488.44 0.000296 3.26 6526.81 996.07 0.15 Reach-1 39290 100 15600.00 441.88 488.88 466.97 0.000309 3.40 7057.97 1021.08 0.16 Reach-1 39290 500 38200.00 441.88 470.66 470.87 0.000477 4.87 11202.42 1156.24 0.20 Reach-1 38200 10 10000.00 441.00 484.19 484.27 0.000305 2.88 5101.41 1111.97 0.15 Reach-1 38200 50 13800.00 441.00 486.05 468.13 0.000265 2.88 7240.28 1183.07 0.14 Reach-1 38200 100 15600.00 441.00 486.58 468.65 0.000283 2.96 7854.82 1214.20 0.14 Reach-1 38200 500 36200.00 441.00 470.21 470.38 0.000432 4.18 12882.21 1493.41 0.19 Reach-1 36970 10 10000.00 440.00 483.34 463.66 0.001084 5.02 2746.90 643.01 0.27 Reach-1 38970 50 13800.00 440.00 485.37 485.82 0.000857 4.78 4396.82 959.38 0.24 Reach-1 38970 100 15800.00 440.00 485.86 486.12 0.000875 4.94 4885.03 1058.61 0.25 Reach-1 36970 500 36200.00 440.00 469.34 489.66 0.000989 6.20 10279.46 1693.02 0.27 Reach-1 34950 10 9400.00 439.30 459.90 480.67 0.002185 7.00 1342.31 126.50 0.38 Reach-1 34950 50 13200.00 439.30 482.48 483.06 0.002049 6.68 2888.89 1155.74 0.37 Reach-1 34950 100 14900.00 439.30 483.59 483.93 0.001379 5.49 4501.91 1686.70 0.30 Reach-1 34950 500 38200.00 439.30 487.71 487.91 0.000740 4.82 12247.88 1944.29 0.23 Reach-1 34850 10 9400.00 439.30 459.63 453.15 480.44 0.002344 7.18 1308.29 125.09 0.39 Reach-1 34850 50 13200.00 439.30 461.70 455.37 482.76 0.003156 8.27 1595.58 526.93 0.46 Reach-1 34850 100 14900.00 439.30 462.48 456.14 483.84 0.003453 8.65 1723.26 635.37 0.48 Reach-1 34850 500 36200.00 439.30 467.18 464.00 487.75 0.001971 7.66 7602.01 1553.28 0.38 Reach-1 34260 10 9400.00 438.80 459.42 453.70 459.56 0.000682 2.99 3144.03 415.18 0.19 Reach-1 34280 50 13200.00 438.80 461.61 454.45 481.77 0.000644 3.18 4145.95 933.77 0.21 Reach-1 34260 100 14900.00 438.80 482.47 454.76 482.83 0.000607 3.21 4844.13 993.84 0.20 Reach-1 34260 500 38200.00 438.80 486.84 457.89 487.04 0.000625 3.90 11578.68 1970.00 0.20 Reach-1 33470 10 9400.00 439.00 458.58 448.98 458.88 0.001029 4.54 2070.18 278.38 0.29 Reach-1 33470 50 13200.00 439.00 460.72 450.87 481.07 0.001204 4.77 2858.13 1152.95 0.30 Reach-1 33470 100 14900.00 439.00 481.60 451.86 461.94 0.001255 4.74 332925 1718.39 0.30 4 Reach-1 33470 500 38200.00 439.00 486.54 459.43 466.87 0.000476 3.57 14963.00 2770.00 0.19 A I ]ii 7 I, NIP CHEC-RAS Plan:REV EX River RIVER-1 Reach:Reach-1(Continued) Reach River Eta Profile 0 Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Y4dth Froude 8 Chl . (cOn) (8) (8) (It) (8) (MM) (8s) (sq 8) (8) Reach-1 33145 10 9400.00 438.40 458.27 450.49 458.47 0.001296 3.59 2618.33 404.11 0.24 Reach-1 33145 50 13200.00 438.40 480.42 453.83 480.65 0.001165 3.84 3433.92 1404.35 0.23 Reach-1 33145 100 14900.00 438.40 481.29 454.18 481.53 0.001120 3.92 3847.76 2304.11 0.23 Reach-1 33145 500 36200.00 438.40 466.46 457.78 488.54 0.000298 2.37 21116.29 4178.85 0.12 Reach-1 32725 10 9400.00 438.20 457.78 458.02 0.000954 4.53 3014.13 647.80 0.25 Reach-1 32725 50 13200.00 438.20 460.12 460.28 0.000871 3.93 5153.67 1418.64 0.22 Reach-1 32725 100 14900.00 438.20 481.07 461.18 0.000562 3.48 6578.37 2134.07 0.20 Reach-1 32725 500 36200.00 438.20 486.39 486.44 0.000229 2.88 21665.36 3909.44 0.13 Reach-1 32305 10 9400.00 437.70 455.87 457.11 0.005520 9.30 1125.20 205.35 0.59 Reach-1 32305 50 13200.00 437.70 458.75 459.64 0.003671 8.13 1876.36 313.94 0.49 Reach-1 32305 100 14900.00 437.70 459.86 480.63 0.003098 7.70 2256.19 378.25 0.45 Reach-1 32305 500 38200.00 437.70 486.19 468.29 0.000491 3.83 16792.14 3857.87 0.19 Reach-1 32250 10 9400.00 437.00 456.34 458.78 0.000831 5.37 1862.65 235.51 0.25 Reach-1 32250 50 13200.00 437.00 458.93 459.43 0.000886 5.93 2896.47 833.84 0.26 Reach-1 32250 100 14900.00 437.00 480.03 480.45 0.000779 5.70 4039.84 1181.23 0.24 Reach-1 32250 500 38200.00 437.00 486.18 488.27 0.000274 4.13 18687.43 2896.67 0.15 Reach-1 32230 10 13300.00 435.00 454.75 450.43 458.63 0.000819 11.19 1247.97 130.58 0.59 Reach-1 32230 50 18900.00 435.00 456.57 453.72 459.21 0.001107 13.32 1502.07 148.03 0.68 Reach-1 32230 100 21300.00 435.00 457.28 454.70 480.20 0.001218 14.09 1805.33 154.82 0.71 Reach-1 32230 500 36200.00 435.00 462.65 459.38 485.95 0.001140 15.20 2871.91 474.88 0.69 Reach-1 32215 Bridge Reach-1 32200 10 13300.00 435.00 454.67 456.59 0.000836 11.28 1238.26 129.96 0.80 Reach-1 32200 50 18900.00 435.00 456.42 459.14 0.001147 13.51 1480.05 148.54 0.89 Reach-1 32200 100 21300.00 435.00 457.04 460.11 0.001269 14.38 1572.07 152.87 0.73 Reach-1 32200 500 38200.00 435.00 459.38 459.38 465.16 0.002261 19.86 1958.17 175.96 0.97 Reach-1 32150 10 13300.00 437.00 455.03 456.12 0.001334 8.44 1638.55 148.70 0.40 Reach-1 32150 50 18900.00 437.00 458.89 458.53 0.001826 10.40 1997.32 250.84 0.47 Reach-1 32150 100 21300.00 437.00 457.57 459.42 0.002007 11.09 2174.38 285.86 0.49 Reach-1 32150 500 38200.00 437.00 480.79 482.88 0.002288 12.89 5028.29 1434.60 0.54 Reach-1 31230 10 13300.00 438.10 454.56 455.00 0.000787 5.37 2478.89 247.04 0.30 Reach-1 31230 50 18800.00 438.10 458.37 456.99 0.001020 8.35 3144.00 488.15 0.34 Reach-1 31230 100 21300.00 438.10 457.02 457.69 0.001146 6.66 3488.65 616.35 0.36 Reath-1 31230 500 36200.00 438.10 459.92 480.75 0.001602 7.78 6053.84 1444.82 0.43 Reach-1 30570 10 13300.00 438.23 454.31 454.54 0.000515 4.24 4191.81 723.25 0.25 Reach-1 30570 50 18900.00 438.23 456.18 458.43 0.000527 4.50 5832.03 814.38 0.26 Reach-1 30570 100 21300.00 438.23 458.83 457.09 0.000537 4.62 6172.16 852.910.26 Reach-1 30570 500 36200.00 438.23 459.66 459.99 0.000628 5.37 8999.99 1458.40 0.32 Reach-1 29610 10 13300.00 437.40 454.00 454.15 0.000326 3.51 5450.06 938.04 0.19 Reach-1 29610 50 18900.00 437.40 455.88 458.04 0.000327 3.75 7280.69 997.27 0.20 Reach-1 29610 100 21300.00 437.40 456.52 456.69 0.000332 3.87 7907.57 1013.37 0.20 Reach-1 29610 500 38200.00 437.40 459.27 459.51 0.000412 4.74 10803.57 1110.98 0.24 Reach-1 28870 10 13300.00 436.30 453.67 453.88 0.000507 3.97 5194.44 1744.58 0.22 Reach-1 28870 50 18900.00 436.30 455.65 455.79 0.000372 3.57 8934.98 2056.88 0.20 Reach-1 28870 100 21300.00 436.30 458.31 458.44 0.000343 3.47 10337.91 2148.45 0.19 Reach-1 28870 500 38200.00 436.30 459.11 459.22 0.000296 3.48 16706.00 2463.39 0.18 Reach-1 28080 10 13300.00 435.20 453.19 453.53 0.000553 4.69 3291.02 754.67 0.25 Reach-1 28080 50 18900.00 435.20 455.08 455.44 0.000635 5.10 4934.80 1015.73, 0.27 Reach-1 28080 100 21300.00 435.20 455.73 458.10 0.000652 5.20 5632.12 1123.05 0.28 Reach-1 28080 500 38200.00 435.20 458.52 458.87 0.000742 5.52 9519.88 1687.64 0.33 Reach-1 28830 10 13300.00 438.30 452.62 452.98 0.000685 4.85 3036.24 832.56 0.27 Reach-1 28830 50 18900.00 438.30 454.43 454.82 0.000731 5.25 4694.61 975.27 0.29 Reach-1 28830 100 21300.00 438.30 455.07 455.48 0.000740 5.35 5324.01 993.89 0.29 Reach-1 26830 500 36200.00 438.30 457.64 458.11 0.000878 6.18 8001.60 1132.31 0.35 Reach-1 25530 10 12800.00 434.40 451.89 452.25 0.000507 4.87 2688.85 573.72 0.25 Reach-1 25530 50 18200.00 434.40 453.56 454.00 0.000591 5.55 4844.72 1782.34 0.27 Reach-1 25530 100 20600.00 434.40 454.24 454.85 0.000589 5.58 8105.83 1889.90 0.27 Reach-1 25530 500 36200.00 434.40 458.84 457.24 0.000559 8.12 11431.23 2106.00 0.27 Reach-1 24700 10 12800.00 437.50 451.95 452.03 0.000120 1.76 5975.76 825.93 0.09 Reach-1 24700 50 18200.00 437.50 453.65 453.75 0.000121 1.94 7402.00 855.46 0.09 Reach-1 24700 100 20600.00 437.50 454.31 454.42 0.000123 2.01 7969.91 867.62 0.09 Reach-1 24700 500 36200.00 437.50 456.80 457.00 0.000173 2.66 10332.38 1043.16 0.11 Reach-1 24680 10 12800.00 437.50 451.95 452.02 0.000120 1.78 5971.70 825.85 0.09 0 HEC-RAS Plan:REV_EX River:RIVER-1 Reach:Reach-1(Continued) Reach River Sta Profile 0 Total Min Ch EI W.S.Bev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Wdth Froude M Chl (ds) (ft) (ft) (ft) (ft) (9tft) (9/5) (8f 9) (ft) Reach-1 24880 50 18200.00 437.50 453.64 453.74 0.000122 1.94 7397.75 855.37 0.09 Reach-1 24880 100 20600.00 437.50 454.30 454.41 0.000123 2.01 7985.54 867.52 0.09 Reach-1 24860 500 36200.00 437.50 458.79 457.00 0.000173 2.86 10324.83 1042.84 0.11 Reach-1 24820 10 12800.00 437.50 451.94 452.02 0.000120 1.78 5987.80 825.76 0.09 Reach-1 24820 50 18200.00 437.50 453.64 453.74 0.000122 1.94 7393.41 855.27 0.09 Reach-1 24820 100 20600.00 437.50 454.30 454.41 0.000123 2.01 7961.09 887.43 0.09 Reach-1 24620 500 38200.00 437.50 458.79 456.99 0.000174 2.87 10317.14 1042.12 0.11 Reach-1 24585 10 12800.00 437.50 450.50 451.87 0.004282 9.58 1391.88 180.48 0.51 Reach-1 24585 50 18200.00 437.50 451.70 449.01 453.55 0.005221 11.42 1857.95 575.32 0.58 Reach-1 24585 100 20600.00 437.50 453.39 454.31 0.002505 8.68 2935.45 699.48 0.41 Reach-1 24585 500 36200.00 437.50 458.10 458.91 0.001793 8.32 5138.08 944.88 0.38 Reach-1 23800 10 12800.00 433.30 450.58 450.84 0.000376 2.63 3247.81 375.94 0.19 Reach-1 23800 50 18200.00 433.30 451.83 452.08 0.000602 2.83 3715.23 510.18 0.23 Reach-1 23800 100 20800.00 433.30 452.98 453.39 0.000532 2.54 4539.80 732.87 0.22 Reach-1 23800 500 38200.00 433.30 455.59 458.00 0.000673 3.57 7982.03 1897.18 0.26 Reach-1 22370 10 12800.00 432.50 450.34 450.51 0.000207 3.31 3872.13 301.52 0.16 Reach-1 22370 50 18200.00 432.50 451.24 451.53 0.000340 4.39 4145.24 305.53 0.21 Reach-1 22370 100 20600.00 432.50 452.58 452.89 0.000328 4.52 4823.30 530.39 0.21 Reach-1 22370 500 38200.00 432.50 454.48 455.15 0.000784 6.77 6308.34 1435.08 0.32 Reach-1 21560 10 12800.00 432.40 450.22 450.38 0.000148 2.97 4316.36 308.26 0.14 Reach-1 21560 50 18200.00 432.40 451.04 451.29 0.000253 3.98 4571.87 336.84 0.18 Reach-1 21580 100 20600.00 432.40 452.39 452.85 0.000249 4.11 5147.83 838.78 0.18 Reach-1 21560 500 38200.00 432.40 454.01 451.82 0.000537 6.38 8894.98 1177.73 0.27 Reach-1 19930 10 12800.00 432.00 450.09 450.17 0.000096 2.28 6421.40 1284.12 0.12 • Reach-1 19930 50 18200.00 432.00 450.84 450.97 0.000154 2.96 7429.44 1427.06 0.15 Reach-1 19930 100 20600.00 432.00 452.25 452.38 0.000126 2.82 9601.12 1878.89 0.14 Reach-1 19930 500 36200.00 432.00 453.79 454.01 0.000240 4.12 12468.18 1948.70 0.19 Reach-1 19330 10 12800.00 431.70 450.07 450.11 0.000080 1.78 10578.96 2722.68 0.09 Reach-1 19330 50 18200.00 431.70 450.82 450.87 0.000084 2.16 12695.62 2921.31 0.10 CReach-1 19330 100 20600.00 431.70 452.25 452.28 0.000057 1.88 17123.86 3328.38 0.09 Reach-1 19330 500 36200.00 431.70 453.80 453.87 0.000092 2.55 22705.12 3740.50 0.11 Reach-1 18440 10 12800.00 431.40 449.70 449.25 449.97 0.002733 5.84 3695.76 2083.88 0.38 Reach-1 18440 50 18200.00 431.40 450.50 449.52 450.71 0.001885 5.04 5560.03 2588.88 0.32 Reach-1 18440 100 20800.00 431.40 452.12 449.87 452.20 0.000458 2.79 10301.42 3157.20 0.18 Reach-1 18440 500 38200.00 431.40 453.84 450.37 453.75 0.000459 3.11 15169.74 3248.40 0.17 ® HEC-RAS Plan:DC_PROP River RIVER-1 Reach:Reach-1 Reach River Sta Profile 0 Total Min Ch El W.S.Dee Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top iMdth Froude•ail (aa) (6) (8) (8) (8) (8llt) (8/a) (59 8) (8) Reach-1 56940 10 4000.00 449.00 470.89 471.07 0.000404 3.55 1301.92 170.02 0.17 Reach-1 56940 50 7000.00 449.00 473.52 473.79 0.000586 4.59 2247.18 874.57 0.20 Reach-1 56940 100 9400.00 449.00 474.50 474.79 0.000689 5.06 3389.25 1458.22 0.22 Reach-1 58940 500 36200.00 449.00 479.30 479.47 0.000538 5.39 14792.31 2585.60 0.21 Reach-1 55590 10 4000.00 452.40 470.14 470.38 0.000660 3.96 1010.79 88.81 0.21 Reach-1 55590 50 7000.00 452.40 472.33 472.76 0.001018 5.44 1899.15 1167.29 0.26 Reach-1 55590 100 9400.00 452.40 473.25 473.87 0.001068 5.83 3089.71 1412.25 0.27 Reach-1 55590 500 36200.00 452.40 478.39 478.82 0.000809 6.22 13044.07 2300.35 0.25 Reach-1 53350 10 4000.00 448.00 469.79 489.85 0.000106 2.07 2361.25 330.98 0.09 Reach-1 53350 50 7000.00 448.00 471.81 471.90 0.000170 2.84 3999.74 1387.33 0.12 Reach-1 53350 100 9400.00 448.00 472.57 472.68 0.000218 3.31 5303.58 2178.78 0.14 Reach-1 53350 500 38200.00 448.00 477.88 477.93 0.000161 3.38 25490.36 4228.76 0.12 Reach-1 51350 10 4000.00 446.50 489.51 469.59 0.000172 2.23 2106.55 653.81 0.11 Reach-1 51350 50 7000.00 446.50 471.32 471.39 0.000460 2.37 4032.42 1382.54 0.17 Reach-1 51350 100 9400.00 446.50 472.00 472.08 0.000497 2.64 4980.91 1438.31 0.18 Reach-1 51350 500 36200.00 448.50 477.44 477.53 0.000344 3.22 16731.48 2452.71 0.16 Reach-1 48000 10 5300.00 445.60 488.74 488.83 0.000272 2.98 3393.13 1285.58 0.14 Reach-1 48000 50 8000.00 445.60 470.13 470.21 0.000272 3.18 5358.88 1484.52 0.14 Reach-1 48000 100 9800.00 445.60 470.68 470.77 0.000299 3.39 6185.49 1537.17 0.15 Reach-1 45000 500 38200.00 445.60 476.13 476.26 0.000374 4.56 15180.04 1776.22 0.17 Reach-1 40650 10 6600.00 440.00 465.95 466.20 0.000559 4.33 1992.62 604.78 0.19 Reach-1 40650 50 9100.00 440.00 467.61 487.86 0.000534 4.53 3176.61 788.72 0.19 Reach-1 40650 100 10200.00 440.00 468.14 488.38 0.000533 4.82 3602.60 822.88 0.19 Reach-1 40650 500 36200.00 440.00 472.18 472.81 0.001383 8.47 7247.06 990.71 0.32 Reach-1 39540 10 9900.00 442.00 464.58 485.18 0.001359 6.48 1939.26 805.66 0.31 Reach-1 39540 50 13700.00 442.00 466.39 488.93 0.001178 6.55 3260.20 820.95 0.30 Reach-1 39540 100 15400.00 442.00 468.94 487.48 0.001165 6.67 3716.95 864.38 0.30 Reach-1 39540 500 36200.00 442.00 470.74 471.36 0.001342 8.29 7398.44 1021.13 0.33 Reach-1 39490 10 10000.00 442.00 464.77 485.02 0.000724 4.05 , 2666.42 458.29 0.23 C Reach-1 39490 50 13800.00 442.00 486.53 466.81 0.000770 4.42 3542.16 529.50 0.24 Reach-1 39490 100 15600.00 442.00 467.04 467.35 0.000831 4.66 3819.51 547.45 0.25 Reach-1 39490 500 38200.00 442.00 470.63 471.29 0.001385 7.05 5969.54 654.88 0.33 Reach-1 39440 10 10000.00 442.00 464.20 464.92 0.001808 6.89 1730.01 550.52 0.34 Reach-1 39440 50 13800.00 442.00 466.04 486.72 0.001451 7.16 2977.41 783.38 0.33 Reach-1 39440 100 15600.00 442.00 486.57 487.28 0.001480 7.40 3405.77 837.36 0.33 Reach-1 39440 500 36200.00 442.00 470.42 471.20 0.001693 9.20 7084.67 1014.39 0.37 Reach-1 39290 10 10000.00 441.88 484.52 484.62 0.000332 3.19 4785.07 920.76 0.16 Reach-1 39290 50 13800.00 441.88 486.34 486.44 0.000296 3.26 6526.81 996.07 0.15 Reach-1 39290 100 15600.00 441.88 466.86 486.97 0.000309 3.40 7057.97 1021.08 0.18 Reach-1 39290 500 36200.00 441.88 470.86 470.87 0.000477 4.87 11203.13 1156.26 0.20 Reach-1 38200 10 10000.00 441.00 464.19 484.27 0.000305 2.86 5101.41 1111.97 0.15 Reach-1 38200 50 13800.00 441.00 466.05 468.13 0.000265 2.88 7240.28 1183.07 0.14 Reach-1 38200 100 15600.00 441.00 486.56 466.65 0.000283 2.96 7854.82 1214.20 0.14 Reach-1 38200 500 36200.00 441.00 470.21 470.36 0.000432 4.16 12883.25 1493.48 0.19 Reach-1 36970 10 10000.00 440.00 483.34 483.56 0.001084 5.02 2748.90 643.01 0.27 Reach-1 36970 50 13800.00 440.00 465.37 485.62 0.000857 4.76 4396.82 959.38 0.24 Reach-1 38970 100 15600.00 440.00 465.86 468.12 0.000875 4.94 4885.03 1058.61 0.25 Reach-1 36970 500 38200.00 440.00 469.34 489.87 0.000988 6.20 10281.21 1693.07 0.27 Reach-1 34950 10 9400.00 439.30 459.90 480.67 0.002185 7.00 1342.31 126.50 0.38 Reach-1 34950 50 13200.00 439.30 482.48 483.06 0.002049 8.66 2888.89 1155.74 0.37 Reach-1 34950 100 14900.00 439.30 483.59 483.93 0.001379 5.49 4501.91 1688.70 0.30 Reach-1 34950 500 36200.00 439.30 467.72 467.91 0.000739 4.82 12252.55 1944.34 0.23 Reach-1 34850 10 9400.00 439.30 459.63 453.15 480.44 0.002344 7.18 1308.29 125.09 0.39 Reach-1 34850 50 13200.00 439.30 481.70 455.37 482.78 0.003156 8.27 1595.58 526.93 0.48 Reach-1 34850 100 14900.00 439.30 482.48 456.14 463.64 0.003453 8.65 1723.28 835.37 0.48 Reach-1 34850 500 38200.00 439.30 487.17 464.00 487.75 0.001968 7.65 7607.22 1553.35 0.38 Reach-1 34260 10 9400.00 438.80 459.42 453.70 459.58 0.000682 2.99 3144.03 415.18 0.19 Reach-1 34260 50 13200.00 438.80 481.81 454.45 481.77 0.000644 3.18 4145.95 933.77 0.21 Reach-1 34280 100 14900.00 438.80 462.47 454.76 462.63 0.000607 3.21 4644.13 993.64 0.20 Reach-1 34280 500 38200.00 438.80 466.84 457.89 487.05 0.000624 3.90 11588.20 1970.00 0.20 Reach-1 33470 10 9400.00 439.00 458.56 448.98 458.88 0.001029 4.54 2070.18 278.38 0.29 Reach-1 33470 50 13200.00 439.00, 480.72 450.87 481.07 0.001204 4.77 2858.13 1152.95 0.30 . . Reach-1 33470 100 14900.00 439.00 461.60 451.66 481.94 0.001255 4.74 3329.24 1718.39 0.30 Reach-1 33470 500 38200.00 439.00 466.54 459.43 466.67 0.000475 3.57 14975.26 2770.00 0.19 0 HEC-RAS Plan:DC_PROP River.RIVER-1 Reach:Reach-1(Continued) Reach River Eta Profile 0 Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top VNdth Froude 3 Chl ( ) (8) (6) (8) (8) (8/6) (8s) (sq 6) (8) Reach-1 33145 10 9400.00 438.40 458.27 450.49 458.47 0.001296 3.59 2618.33 404.11 0.24 Reach-1 33145 50 13200.00 438.40 460.42 453.83 460.65 0.001185 3.84 3433.92 1404.35 0.23 Reach-1 33145 100 14900.00 438.40 461.29 454.18 461.53 0.001120 3.92 3847.74 2304.11 0.23 Reach-1 33145 500 38200.00 438.40 466.48 457.78 486.54 0.000297 2.38 21135.41 4178.99 0.12 Reach-1 32725 10 9400.00 438.20 457.78 458.02 0.000954 4.53 3014.13 847.80 0.25 Reach-1 32725 50 13200.00 438.20 480.12 480.28 0.000671 3.93 5153.67 1418.84 0.22 Reach-1 32725 100 14900.00 438.20 481.07 481.18 0.000582 3.48 8576.31 2134.06 0.20 Reach-1 32725 500 36200.00 438.20 486.39 468.45 0.000228 2.87 21684.09 3909.51 0.13 Reach-1 32305 10 9400.00 437.70 455.87 457.11 0.005520 9.30 1125.20 205.35 0.59 Reach-1 32305 50 13200.00 437.70 458.75 459.64 0.003671 8.13 1876.36 313.94 0.49 Reach-1 32305 100 14900.00 437.70 459.88 460.63 0.003098 7.70 2258.18 376.25 0.45 Reach-1 32305 500 36200.00 437.70 486.19 486.30 0.000489 3.82 16812.75 3858.35 0.19 Reach-1 32250 10 9400.00 437.00 456.34 458.78 0.000831 5.37 1882.65 235.51 0.25 Reach-1 32250 50 13200.00 437.00 458.93 459.43 0.000886 5.93 2896.47 833.84 0.26 Reach-1 32250 100 14900.00 437.00 480.03 480.45 0.000779 5.70 4039.60 1181.22 0.24 Reach-1 32250 500 36200.00 437.00 466.16 486.28 0.000274 4.13 18702.90 2897.01 0.15 Reach-1 32230 10 13300.00 435.00 454.75 450.43 456.63 0.000819 11.19 1247.97 130.58 0.59 Reach-1 32230 50 18900.00 435.00 456.57 453.72 459.21 0.001107 13.32 1502.07 148.03 0.68 Reach-1 32230 100 21300.00 435.00 457.26 454.75 480.20 0.001218 14.09 1805.33 154.82 0.71 Reach-1 32230 500 36200.00 435.00 482.66 459.38 465.96 0.001138 15.19 2878.68 475.42 0.69 Reach-1 32215 Bridge Reach-1 32200 10 13300.00 435.00 454.87 456.59 0.000836 11.28 1238.28 129.96 0.60 Reach-1 32200 50 18900.00 435.00 458.42 459.14 0.001147 13.51 1480.05 148.54 0.69 Reach-1 32200 100 21300.00 435.00 457.04 460.11 0.001289 14.38 1572.07 152.87 0.73 Reach-1 32200 500 36200.00 435.00 459.37 459.37 485.16 0.002284 19.87 1955.06 175.90 0.97 Reach-1 32150 10 13300.00 437.00 455.03 456.12 0.001334 8.44 1638.55 148.70 0.40 Reach-1 32150 50 18900.00 437.00 458.89 458.53 0.001826 10.40 1997.32 250.84 0.47 Reach-1 32150 100 21300.00 437.00 457.57 459.42 0.002007 11.09 2174.35 285.88 0.49 C Reach-1 32150 500 38200.00 437.00 460.79 462.88 0.002288 12.89 5028.29 1434.60 0.54 Reach-1 31230 10 13300.00 438.10 454.58 455.00 0.000787 5.37 2478.89 247.04 0.30 Reach-1 31230 50 18900.00 438.10 456.37 456.99 0.001020 6.35 3144.00 488.15 0.34 Reach-1 31230 100 21300.00 438.10, 457.02 457.69 0.001148 8.88 3488.83 616.34 0.38 Reach-1 31230 500 36200.00 438.10 459.92 460.75 0.001802 7.78 8053.84 1444.82 0.43 Reach-1 30570 10 13300.00 438.23 454.31 454.54 0.000515 4.24 4191.81 723.25 0.25 Reach-1 30570 50 18900.00 438.23 458.18 456.43 0.000527 4.50 5632.03 814.38 0.28 Reach-1 30570 100 21300.00 438.23 456.83 457.09 0.000537 4.62 6172.13 852.91 0.26 Reach-1 30570 500 38200.00 438.23 459.66 459.99 0.000628 5.37 8999.99 1456.40 0.32 Reach-1 29810 10 13300.00 437.40 454.00 454.15 0.000326 3.51 5450.08 938.04 0.19 Reach-1 29610 50 18900.00 437.40 455.88 456.04 0.000327 3.75 7280.89 997.27 0.20 Reach-1 29610 100 21300.00 437.40 456.52 456.69 0.000332 3.87 7907.54 1013.37 0.20 Reach-1 29610 500 36200.00 437.40 459.27 459.51 0.000412 4.74 10803.57 1110.96 0.24 Reach-1 28870 10 13300.00 438.30 453.67 453.88 0.000507 3.97 5194.44 1744.58 0.22 Reach-1 28870 50 18900.00 438.30 455.85 455.79 0.000372 3.57 8934.98 2056.88 0.20 Reach-1 28870 100 21300.00 438.30 456.31 458.44 0.000343 3.47 10337.85 2148.44 0.19 Reach-1 28870 500 38200.00 438.30 459.11 459.22 0.000298 3.48 16706.00 2483.39 0.18 Reach-1 28080 10 13300.00 435.20 453.19 453.53 0.000553 4.89 3290.99 754.88 0.25 Reach-1 28080 50 18900.00 435.20 455.08 455.44 0.000835 5.10 4934.80 1015.73 0.27 Reach-1 28080 100 21300.00 435.20 455.73 456.10 0.000852 5.20 5632.08 1123.05 0.28 Reach-1 28080 500 38200.00 435.20 458.52 458.87 0.000742 5.52 9519.82 1887.64 0.33 Reach-1 28830 10 13300.00 438.30 452.82 452.98 0.000665 4.85 3036.19 832.55 0.27 Reach-1 28830 50 18900.00 438.30 454.43 454.82 0.000732 5.25 4894.58 975.27 0.29 Reach-1 26830 100 21300.00 436.30 455.07 455.48 0.000740 5.35 5323.98 993.89 0.29 Reach-1 26830 500 36200.00 436.30 457.64 458.11 0.000878 6.18 8001.56 1132.30 0.35 Reach-1 25530 10 12800.00 434.40 451.89 452.25 0.000507 4.87 2888.82 573.87 0.25 Reach-1 25530 50 18200.00 434.40 453.58 454.00 0.000591 5.55 4844.61 1782.32 0.27 Reach-1 25530 100 20800.00 434.40 454.24 454.65 0.000589 5.58 6105.57 1889.90 0.27 Reach-1 25530 500 36200.00 434.40 456.84 457.24 0.000559 8.12 11431.17 2106.00 0.27 Reach-1 24700 10 12800.00 437.50 451.95 452.03 0.000120 1.76 5975.71 825.93 0.09 Reach-1 24700 50 18200.00 437.50 453.65 453.75 0.000121 1.94 7401.95 855.48 0.09 Reach-1 24700 100 20600.00 437.50 454.31 _ 454.42 0.000123 2.01 7969.88 887.61 0.09 1 Reach-1 24700 500 38200.00 437.50 456.80 457.00 0.000173 2.68 10332.35 1043.16 0.11 Reach-1 24860 10 12800.00 437.50 451.95 448.40 452.02 0.000120 1.76 5971.85 825.85 0.09 • i C HEC-RAS Plan:DC_PROP River.RIVER-1 Reach:Reach-1(Continued) Reach River Ste ProMe Q Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top W dth Froude*Chi (cb) (8) (N (8) (6) (N8) (Ns) (5(1 8) (8) Reach-1 24860 50 18200.00 437.50 453.64 446.92 453.74 0.000122 1.94 7397.69 855.37 0.09 Reach-1 24680 100 20600.00 437.50 454.30 447.12 454.41 0.000123 2.01 7965.51 867.52 0.09 Reach-1 24880 500 36200.00 437.50 456.79 448.36 457.00 0.000173 2.66 10324.80 1042.64 0.11 Reach-1 24840 Bridge Reach-1 24820 10 12800.00 437.50 451.94 452.02 0.000120 1.76 5967.60 825.76 0.09 Reach-1 24820 50 18200.00 437.50 453.64 453.74 0.000122 1.94 7393.41 855.27 0.09 Reach-1 24820 100 20600.00 437.50 454.30 454.41 0.000123 2.01 7961.09 867.43 0.09 Reach-1 24820 500 36200.00 437.50 456.79 456.99 0.000174 2.87 10317.14 1042.12 0.11 Reach-1 24585 10 12800.00 437.50 450.50 451.87 0.004262 9.58 1391.88 160.46 0.51 Reach-1 24585 50 18200.00 437.50 451.70 449.01 453.55 0.005221 11.42 1857.95 575.32 0.58 Reach-1 24585 100 20600.00 437.50 453.39 454.31 0.002505 8.68 2935.45 699.48 0.41 Reach-1 24585 500 36200.00 437.50 456.10 456.91 0.001793 8.32 5138.08 944.88 0.38 Reach-1 23800 10 12800.00 433.30 450.58 450.84 0.000376 2.63 3247.61 375.94 0.19 Reach-1 23800 50 18200.00 433.30 451.63 452.08 0.000602 2.83 3715.23 510.16 0.23 Reach-1 23800 100 20600.00 433.30 452.98 453.39 0.000532 2.54 4539.60 732.87 0.22 Reach-1 23800 500 36200.00 433.30 455.59 456.00 0.000673 3.57 7982.03 1897.18 0.26 Reach-1 22370 10 12800.00 432.50 450.34 450.51 0.000207 3.31 3872.13 301.52 0.16 Reach-1 22370 50 18200.00 432.50 451.24 451.53 0.000340 4.39 4145.24 305.53 0.21 Reach-1 22370 100 20600.00 432.50 452.58 452.89 0.000326 4.52 4623.30 530.39 0.21 Reach-1 22370 500 36200.00 432.50 454.48 455.15 0.000784 6.77 6308.34 1435.08 0.32 Reach-1 21560 10 12800.00 432.40 450.22 450.38 0.000148 2.97 4316.36 308.26 0.14 Reach-1 21560 50 18200.00 432.40 451.04 451.29 0.000253 3.98 4571.87 336.84 0.18 Reach-1 21560 100 20600.00 432.40 452.39 452.85 0.000249 4.11 5147.83 638.78 0.18 Reach-1 21560 500 36200.00 432.40 454.01 454.62 0.000537 6.36 6694.98 1177.73 0.27 Reach-1 19930 10 12800.00 432.00 450.09 450.17 0.000098 2.28 6421.40 1264.12 0.12 Reach-1 19930 50 18200.00 432.00 450.84 450.97 0.000154 2.96 7429.44 1427.06 0.15 Reach-1 19930 100 20600.00 432.00 452.25 452.38 0.000126 2.82 9601.12 1678.89 0.14 Reach-1 19930 500 36200.00 432.00 453.79 454.01 0.000240 4.12 12468.18 1946.70 0.19 .wa.. Reach-1 19330 10 12800.00 431.70 450.07 450.11 0.000060 1.78 10578.98 2722.66 0.09 Reach-1 19330 50 18200.00 431.70 450.82 450.87 0.000084 2.16 12695.82 2921.31 0.10 Reach-1 19330 100 20600.00 431.70 452.25 452.28 0.000057 1.88 17123.88 3328.38 0.09 Reach-1 19330 500 38200.00 431.70 453.80 453.87 0.000092 2.55 22705.12 3740.50 0.11 Reach-1 18440 10 12800.00 431.40 449.70 449.25 449.97 0.002733 5.84 3695.78 2083.88 0.38 Reach-1 18440 50 18200.00 431.40 450.50 449.52 450.71 0.001885 5.04 5560.03 2586.88 0.32 Reach-1 18440 100 20600.00 431.40 452.12 449.87 452.20 0.000456 2.79 10301.42 3157.20 0.16 Reach-1 18440 500 36200.00 431.40 453.84 450.38 453.75 0.000459 3.11 15189.74 3248.40 0.17 f 1 a ( 1 9 1 1 ) 3 1 0 APPENDIX B.2 HYDRAULIC DATA (USACE UPDATE): o DCLID-1 Summary o HEC-RAS Standard Summaries (All Plans) o Exhibit B.2-1 Topographic Workmap (USACE Update) 0 0 Denton Creek CLOMR—Appendix B.2 DCLID-1 Hydraulics tfl3 league nail&perkins Appendix B.2 This Appendix summarizes the hydraulic impact of the proposed bridge on Denton Creek in accordance with the Denton County Levee Improvement District #1 (DCLID-1) requirements. Prior to this study, TNP and the City attended a DCLID-1 board meeting in which it was indicated that the levees are regulated based on the study titled: Corridor Development Certificate — Upper Trinity River, Texas Hydrologic and Hydraulic Model Update in Partnership with the North Central Texas Council of Governments, Denton Creek, May 2013 (hereafter referred to as "USACE Update"). That study is the basis for the hydraulic analysis summarized in this appendix. Furthermore, this analysis is intended to support a construction permit request from the DCLID-1, for the construction of a new pedestrian bridge across Denton Creek. Included is a summary of the means, methods, and results of this hydraulic analysis. Additional data pertaining to FEMA effective models can be found in the main summary of this CLOMR and Appendices. Peak Discharges No hydrologic analysis was performed as part of this study. See Table 1 for a comparison and summary of peak discharges that were obtained from the FIS and USACE Update study. The analysis summarized in this Appendix is based on the USACE Update peak discharges. Table B.2-1: Peak Discharge Summary(project reach only) Study ID 10-YR 50-YR 100-YR 500-YR (CFS) (CFS) (CFS) (CFS) Effective FIS 12,800 18,200 20,600 36,200 USACE Update(5/2013)1 14,500 19,000 21,000 55,500 1 These flows used for bridge sizing and DCLID-1 permit, but NOT for the CLOMR. Hydraulic Modeling The following paragraphs summarize the hydraulic models that were obtained and created for this project. The USACE Update study and supporting HEC-RAS models were provided to TNP by the USACE via email on February 2, 2014. Model summaries (HEC-RAS) are included in this Appendix (B.2), and digital models in Appendix D (compact disk). Model Descriptions(See also Table B.2-1 —Water Surface Comparison,and Exhibit B.2-1 —Topographic Workmap) Duplicate Frequency Floods Plan (Plan 1) — This plan is an exact duplicate from the HEC-RAS model that was received from the USACE, and serves as the basis for this study. Y Revised Existing (REVEX) — This model modifies the Frequency Floods Plan by adding sections 23906 and 23953. Both new sections are copied from section 24099 and adjusted to reflect field survey (TNP, 11/2013). These changes result in a 0.01' rise at several sections upstream of the project location. i Proposed (PROP) — This model revises the REVEX model by adding a new pedestrian bridge at station 23930 (see Appendix A - Exhibit 2 Bridge Layout & Details). The new Appendix B.2 - 1 Denton Creek CLOMR-Appendix B.2 DCLID-1 Hydraulics tflp League nail&perkins bridge consists of a single 220' (ft) clear span over the main channel and floodway. The HEC-RAS bridge deck tool was used to represent obstruction of the deck, railing, abutments, and trail approaches. There will be limited tree clearing to make way for the bridge and armoring around the abutments. No other grading is anticipated for the project. Table B.2-2: Water Surface Elevation Comparison FUTURE CONDITION FLOWS(USACE UPDATE STUDY) 100-YR 500-YR SECTION Q-100 DELTA DELTA Q-500 DELTA ID (c�) WSEL (cfs)PLAN1 REVEX WSEL PROP REVEX PROP WSEL (1) (2) (2)-(1) (3) (3)-(2) (4) (5) (5)-(4) 29330 13,500 458.72 458.73 0.01 458.73 0.00 55,500 467.58 467.61 0.03 29267 Bridge Denton Tap Rd. 29207 13,500 458.58 458.59 0.01 458.59 0.00 55,500 467.34 467.38 0.04 28791 13,500 458.61 458.61 0.00 458.61 0.00 55,500 467.69 467.73 0.04 28586 13,500 458.62 458.62 0.00 458.62 0.00 55,500 467.68 467.72 0.04 28217 13,500 458.59 458.59 0.00 458.59 0.00 55,500 467.60 467.63 0.03 27892 13,500 458.52 458.53 0.01 458.53 0.00 55,500 467.45 467.49 0.04 27602 21,000 458.43 458.44 0.01 _ 458.43 -0.01 55,500 467.41 467.45 0.04 27298 21,000 458.31 458.32 0.01 458.32 0.00 55,500 467.34 467.38 0.04 26970 21,000 458.12 458.13 0.01 458.13 0.00 55,500 467.31 467.35 0.04 26688 21,000 458.07 458.07 0.00 458.07 0.00 55,500 467.28 467.32 0.04 26383 21,000 458.06 458.07 0.01 458.07 0.00 55,500 467.27 467.31 0.04 26087 21,000 458.04 458.05 0.01 458.05 0.00 55,500 467.27 467.31 0.04 25797 21,000 458.03 458.04 0.01 458.04 0.00 55,500 467.26 467.31 0.05 25499 21,000 458.00 458.01 0.01 458.01 0.00 55,500 467.25 467.29 0.04 25168 21,000 457.97 457.98 0.01 457.98 0.00 55,500 467.24 467.28 0.04 24819 21,000 457.90 457.91 0.01 457.90 -0.01 55,500 467.20 467.24 0.04 24519 21,000 457.90 - 457.91 0.01 457.91 0.00 55,500 467.19 _ 467.23 0.04 24099 21,000 457.89 457.9 0.01 457.90 0.00 55,500 467.19 467.23 0.04 23953 21,000 457.85 457.85 0.00 55,500 467.08 467.13 0.05 23930 _ Proposed Pedestrian Bridge 23906 21,000 457.81 457.81 0.00 55,500 467.00 467.01 0.01 23802 21,000 457.64 457.64 0.00 457.64 0.00 55,500 466.74 466.74 0.00 23506 21,000 456.73 456.73 0.00 456.73 0.00 55,500 464.92 464.92 0.00 23229 21,000 456.45 456.45 0.00 456.45 0.00 55,500 464.57 464.57 0.00 22655 21,000 456.16 456.16 0.00 456.16 0.00 55,500 464.72 464.72 0.00 22211 21,000 455.85 455.85 0.00 455.85 0.00 55,500 464.22 464.22 0.00 22146 Bridge MacArthur Blvd. ............................................................................................ 22080 21,000 455.69 455.69 0.00 455.69 0.00 55,500 461.91 461.91 0.00 ) ) ) Appendix B.2 - 2 Denton Creek CLOMR—Appendix B.2 DCLID-1 Hydraulics tflp teague nail 8 perkins Modeling Parameters Reach Length— Reach lengths were measured in GIS for sections 24099 and 23953. The reach lengths for section 23906 equal the original lengths for section 24099 minus the added sections. This approach maintains the original length of stream. y Mannings 'n' — Manning's roughness coefficients were carried over from the effective model (Planl) and were applied to the new sections at corresponding horizontal locations. These values were then adjusted at section 23906 to reflect tree clearing and abutment armoring. r. Contraction/Expansion — Contraction/expansion coefficients were not increased above 0.1/0.3 (respectively) at the bridge since the bridge clear spans the conveyance area. Bridge Modeling Approach — Low flows through the bridge are calculated using the energy equation. High flows utilize the weir equation (over the deck). Two feet of railing (vertical) is incorporated into the bridge deck, which is intended to reflect approximately 60% blockage during a 500-yr flood. Additionally, a low weir coefficient (Cd = 2.7; O = Cd*L*H^1.5) is used to further account for inefficient flow through the railing. Conclusion The proposed bridge will result in a 0.00' (ft) rise in the 100-yr (USACE Update) flood, and a 0.03' to 0.05' rise in the 500-yr flood. Several bridge configurations were evaluated in an effort to achieve no-rise in the 500-yr, but were unsuccessful. This is primarily due to the fact that the 500-yr water surface is almost 10 feet higher than the 100-yr, and 4 feet higher than the top of the levee. To elevate the low-chord above the 500-yr would render the bridge infeasible. The south end of the bridge is lower than the north end in order to minimize the amount of blockage that would result from the elevated trails. The proposed bridge will span the entire floodway and conveyance area. Additionally, the proposed bridge is understood to meet design criteria set forth by the DCLID-1, NFIP, and City of Coppell. Although a LOMR will be required following the project, no revisions are anticipated for actual floodplain delineation on the FIRM. C Appendix B.2 - 3 r.•" r Lines can be scaled to si` rs , '., \ Legendlk r X . 'jj}�{/�` ,nom factor of 1.000143834. r,. dpr. . lam.,...• Vertical data is based on •' - � -pm :i .", Control Network(NAVD ``�- -t Flowline/Shoreline �,i" -, *T. 7 `+'- 457.04 feet)was held as— . r `- - shown hereon. T; ti rr.� ti.••A'' r • es-r, I PROP BR $ '▪ --;„,,04,, ''rj Fes.': /. XS_USACE Update 1 -.•.rter / 1 ...*„.11• 0 y_'t^ 1• ?" s r rr f �4 . XS_New err'-'"' ',,,'#!'''',,,. � .d��. � �,•. �'" ��+ � • e ''" j•,� -. FLOODWAY(Eff) Propsed New r -: Pedestrian Bridi 4„r. f 5F:00_ 00 YR Floodplain (E{� :::; YR Floodplain (EFF) y� ; * + = M' y, 'h ter. I .r-" + w. V_ 44 o. _4,41, z.' �« ,. l ,, .......,_-_ , , liti:if-,:r4.:if":47.4.7 i' i.-1-1- 16.-14.-- ,r'In°- .....' 4,:._.k,„"14-kf7 I , ,_ , .._,_._. ....„. r i mss°y `', . ". ire 41e. 4` i '': p x z k / fes'` ....................... �•�� ot k,a�-� _i AndY�Brown Park, j.•,�'''';,-; .* ', ,'': :4: , (East)/ - • ,r,41/ N.'f pZ E•..OFT'+1`t /*:' ". . ,-. KYLE•J. DYKES :*, r1NSB �,1 / � 4 A top # ,, i. lake reayue non&Perkins °u TNP No, CPL 14036 N CE Update EXH431T 8•Z . 1 (c,,,,,,,,,„ • 0 HEC-RAS Phan:Plan 1 River:DentonCreek Reach:DC-1(Continued) • Reach River Sta Profile D Total MM Ch EI W.S.Elev Cr9 W.S. E.G.Elev E.G.Slope Vet Chnl Flow Area Top WkBh Frauds*Chi (os) (8) (5) (8) (6) (N8) (Ma) (se 8) (rt) DC-1 34413 100-year 13000.00 442.98 464.17 464.58 0.001128 5.61 3084.75 812.35 0.23 DC-1 34413 500-year 55500.00 442.98 473.18 473.51 0.000505 4.93 15185.10 1790.41 0.17 • DC-1 34218 10-year 9400.00 44298 461.82 46229 0.001304 5.51 1794.48 279.96 0.25 DC-1 34218 50-year 12000.00 44298 463.22 483.70 0.001312 5.82 2547.48 733.98 0.26 DC-1 34218 100-year 13000.00 442.98 464.00 484.38 0.001078 5.41 3166.09 887.48 0.23 DC-1 34218 500-year 55500.00 442.98 473.17 473.45 0.000409 4.48 15895.79 1706.81 0.15 • DC-1 34064 10-year 9500.00 442.98 461.76 452.11 462.07 0.001040 4.88 2448.47 525.59 0.22 DC-1 34064 50-year 12000.00 442.98 483.22 453.56 463.49 0.000878 4.71 3340.28 689.19 0.21 DC-1 34064 100-year 13000.00 442.98 463.98 454.15 484.22 0.000767 4.52 3907.12 806.69 0.19 DC-1 34064 500-year 55500.00 442.98 473.15 465.61 473.39 0.000358 4.13 16989.62 1767.65 0.14 DC-1 33852 10-year 9500.00 442.98 461.78 451.65 461.88 0.000343 2.84 3789.34 693.68 0.15 DC-1 33852 50-year 12000.00 442.98 463.23 452.96 483.33 0.000266 2.47 4828.90 740.06 0.13 DC-1 33852 100-year 13000.00 44298 463.99 453.48 464.08 0.000223 2.32 5437.90 872.38 0.13 DC-1 33852 500-year 55500.00 442.98 473.18 462.30 473.30 0.000165 3.03 20635.01 2342.84 0.12 DC-1 33696 10-year 9500.00 442.98 461.72 451.70 461.82 0.000387 2.49 3901.21 720.42 0.14 DC-1 33696 50-year 12000.00 442.98 483.19 452.86 463.29 0.000289 2.30 4974.60 757.35 0.12 DC-1 33696 100-year 13000.00 442.98 463.96 453.30 464.05 0.000237 2.18 5622.44 906.98 0.11 • DC-1 33896 500-year 55500.00 442.98 473.16 462.08 473.27 0.000178 2.74 21112.89 2733.78 0.10 DC-1 33400 10-year 9500.00 442.98 461.57 452.52 461.70 0.000552 2.89 3322.08 674.45 0.16 DC-1 33400 50-year 12000.00 442.98 463.08 453.88 463.21 0.000371 2.58 4383.74 700.75 0.13 • DC-1 33400 100-year 13000.00 442.98 483.87 454.41 463.98 0.000297 2.40 4918.55 712.84 0.12 DC-1 33400 500-year 55500.00 442.98 473.03 462.67 473.23 0.000272 3.28 15792.05 1763.07 0.12 DC-1 33326 10-year 9500.00 442.98 461.54 451.88 481.67 0.000423 3.01 3460.17 868.77 0.14 DC-1 33326 50-year 12000.00 442.98 463.07 453.19 463.18 0.000307 2.72 4508.88 705.45 0.12 DC-1 33326 100-year 13000.00 44298 463.86 453.68 463.96 0.000250 2.52 5089.98 763.37 0.11 DC-1 33326 500-year 55500.00 442.98 473.00 482.55 473.21 0.000265 3.52 1529163 1731.50 0.13 • DC-1 33108 10-year 9500.00 442,98 461.28 452.67 461,53 0.001058 4.67 255769 631.66 0.23 DC-1 33108 50-year 12000.00 442.98 462.89 454.10 483.09 0.000701 408 3676.80 729.78 0.19 DC-1 33108 100-year 13000.00 442.98 463.73 45463 463.89 0.000545 3.73 4287.92 736.79 0.17 DC-1 33108 500-year 55500.00 442.98 472.77 463.99 473.13 0.000536 5.02 12487.07 1525.04 0.18 • DC-1 33100 Sanitary Sewer Bridge C DC-133088 10-year 9500.00 442.98 481.19 453.05 461.49 0.001266 4.81 2488.13 653.44 0.24 DC-1 33088 50-year 442.98 462.86 454.53 463.06 0.000777 4.09 3628.47 747.96 0.20 DC-i 33088 100-year13000.00 442.98 463.70 455.07 463.87 0.000588 3.71 4259.70 754.72 0.17i. DC-1 33088 500-year 55500.00 442.98 472.72 464.01 473.08 0.000541 4.91 12505.67 1539.07 0.18 DC-1 32897 10-year 9600.00 442.98 460.50 452.12 481.10 0.002004 6.37 1802.52 220.85 0.31 DC-1 32897 50-year 12000.00 442.98 461.95 453.44 462.68 0.002202 7.06 .2184.30 361.49 0.33 DC-1 32897 100-year 13500.00 442.98 462.73 454.21 463.50 0.002218 7.34 2500.98 459.17 0.33 DC-1 32897 500-year 55500.00 442.98 472.23 466.84 472.88 0.001439 8.19 10418.08 1010.08 0.29 DC-1 32479 10-year 9600.00 442.98 459.31 452.05 460.02 0.003358 6.79 1413.00 148.53 0.39 DC-1 32479 50-year 12000.00 442.98 460.67 453.34 461.51 0.003578 7.38 1630.29 169.19 0.41 • DC-1 32479 100-year 13500.00 442.98 481.38 454.08 482.31 0.003658 7.76 1755.04 205.52 0.41 DC-1 32479 500-year 55500.00 442.98 471.52 468.62 472.21 0.001878 8.62 11387.03 1560.16 0.33 DC-1 32105 10-year 9600.00 440.99 458.36 459.02 0.002146 8.52 1473.27 114.61 0.32 DC-1 32105 50-year 12000.00 440.99 459.51 460.37 0.002631 7.47 1607.45 118.56 0.36 DC-1 32105 100-year 13500.00 440.99 460.01 481.02 0.003212 8.09 1667.98 127.04 0,39 • DC-1 32105 500-year 55500.00 440.99 468.61 470.81 0.005325 13.84 8135.39 1667.48 0.55 DC-1 31797 10-year 9600.00 440.99 458.39 458.58 0.000554 3.31 2750.51 423.03 0.16 DC-1 31797 50-year 12000.00 440.99 459.68 459.89 0.000497 3.31 3308.13 444.24 0.16 DC-1 31797 100-year 1350000 440.99 460.25 460.48 0.000503 3.40 3584.67 453.75 0.16 DC-1 31797 500-year 55500.00 440.99 469.48 469.90 0.000567 4.71 10751.79, 1964.31 0.18 DC-1 31811 10-year 9600.00 440.99 458.26 458.47 0.000741 3.78 2607.41 449.59 0.19 • DC-1 31611 50-year 12000.00 440.99 459.57 459.79 0.000626 3.85 3207.23 463.91 0.17 DC-1 31611 100-year 13500.00 440.99 460.14 480.38 0.000622 3.71 3475.12 489.74 0.17 DC-1 31611 500-year 55500.00 440.99 469.01 469.75 0.000743 5.35 8365.41 733.27 0.20 DC-1 31216 10-year 9600.00 440.99 458.03 458.21 0.000646 3.88 2876.21 459.04 0.17 DC-1 31216 50-year 12000.00 440.99 459.38 459.56 0.000558 3.60 3504.17 469.34 0.16 DC-1 31218 100-year 13500.00 440.99 459.96 460.15 0.000582 3.89 3775.69 473.76 0.18 DC-1 31216 500-year 55500.00 440.99 468.94 469.45 0.000596 5.02 10220.50 885.24 0.18 DC-1 30740 10-year 9700.00 440.99 457.43 457.77 0.001428 4.91 2088.16 380.37 0.26 DC-1 30740 50-year 12500.00 440.99 458.84 459.19 0.001224 4.83 2715.58 536.91 0.24 DC-1 30740 100-year 13500.00 440.99 459.48 459.80 0.001075 4.64 3081.52 621.25 0.23 DC-1 30740 500-year 55500.00 440.99 468.88 489.17 0.000440 4.00 13260.25 1392.96 0.16 DC-1 30424 10-year 9700.00 440.99 457.29 457.50 0.000465 2.96 2819.08 442.06 0.15 DC-1 30424 50-year 12500.00 440.99 458.72 458.96 0.000426 2.98 3525.85 543.75 0.14 • DC-1 30424 100-year 13500.00 440.99 459.37 459.60 0.000389 2.88 3894.02 596.69 0.13 e+ DC-1 30424 500-year 55500.00 440.99 468.83 469.08 0.000232 2.75 15028.92 1376.19 0.11 0. DC-1 30257 10-year 9700.00 440.99 457.25 457.43 0.000348 2.60 3046.40 377.16 0.13 ® HEC-RAS Plan:Plan 1 River:DentonCreek Reach:DC-1 Continued) Reach Rtver Sta Protea 0 Total Min Ch EI W.B.Ebv Crit W.S. E.G.Ebv E.G.Slope Vel Chnl Flow Area Top Wdth Froode 8 Chi (cis) (6) (6) (8) (8) (0t11) (s) (a96) (R) DC-1 30257 50-year 12500.00 440.99 458.68 458.89 0.000339 2.68 3628.65 442.11 0.13 DC-1 30257 100-year 13500.00 440.99 459.33 459.54 0.000316 264 3925.03 475.20 0.12 DC-1 30257 500-year 55500.00 440.99 468.79 469.04 0.000218 2.96 15574.89 148027 0.11 DC-1 30037 10-year 9700.00 440.99 457.19 457.36 0.000325 2.39 3103.93 401.41 0.12 DC-1 30037 50-year 12500.00 440.99 458.62 458.83 0.000308 2.44 3689.08 421.73 0.12 DC-1 30037 100-year 13500.00 440.99 459.28 459.48 0.000288 2.41 3994.76 524.60 0.12 DC-1 30037 500-year 55500.00 440.99 468.78 468.98 0.000184 2.34 17353.18 1708.74 0.10 DC-1 29817 10-year 9700.00 440.99 457.10 457.29 0.000419 2.82 2848.80 386.14 0.14 DC-1 29817 50-year 12500.00 440.99 458.53 458.76 0.000388 2.84 3420.60 450.60 0.13 DC-1 29817 100-year 1350000 440.99 459.19 459.42 0.000351 2.75 374405 544.77 0.13 DC-1 29817 500-year 5550000 440.99 468.82 488.92 0.000123 2.22 22392.28 2269.62 0.08 DC-1 29558 10-year 9700.00 440.99 457.01 457.18 0.000388 264 3168.20 501.90 0.14 DC-1 29558 50-year 12500.00 440.99 458.47 458.66 0.000365 2.59 4012.50 744.59 0.13 DC-1 29558 100-year 13500.00 440.99 459.14 459.32 0.000316 2.49 4576.18 1001.76 0.12 DC-1 29558 500-year 55500.00 440.99 488.80 488.88 0.000109 2.11 24916.93 2344.33 0.08 DC-1 29330 1O0.year 9700.00 433.40 458.70 445.06 457.02 0.001156 4.64 2177.58 208.60 0.23 DC-1 29330 50-year 12500.00 433.40 458.06 446.60 458.49 0.001370 5.31 2470.11 218.95 0.26 DC-1 29330 100-year 13500.00 433.40 458.72 447.11 459.18 0.001370 5.42 2815.88 223.89 0.26 DC-1 29330 500-year 55500.00 433.40 487.57 459.79 488.71 0.002644 9.74 8493.12 1617.89 0.37 DC-1 29267 Denton Tap Road Bridge DC-1 29207 10-year 9700.00 433.40 458.59 458.93 0.001187 4.69 2156.31 207.71 0.24 DC-1 29207 50-year 12500.00 433.40 457.93 458.36 0.001414 5.37 2440.80 217.94 0.26 DC-1 29207 100-year 13500.00 433.40 458.58 459.03 0.001414 5.49 2584.82 222.84 0.26 DC-1 29207 500-year 55500.00 433.40 467.33 488.57 0.002886 10.12 8106.87 157825 0.39 DC-1 28791 10-year 9700.00 440.01 456.55 444.70 458.63 0.000211 2.39 5402.50 932.37 0.11 DC-1 28791 50-year 12500.00 440.01 457.92 445.50 458.00 0.000214 2.55 6925.37 1192.48 0.11 DC-1 28791 100-year 13500.00 440.01 458.61 445.77 458.68 0.000188 245 7745.48 1204.73 0.10 DC-1 28791 500-year 55500.00 440.01 467.68 453.94 467.81 0.000193 3.30 21416.41 2187.81 0.11 DC-1 28586 10-year 9700.00 440.01 458.56 444.01 456.59 0.000058 1.40 816263 1128.77 0.07 DC-1 28586 50-year 12500.00 440.01 457.94 444.68 457.97 0.000081 1.51 9754.19 1185.81 0.07 DC-1 28586 100-year 13500.00 440.01 458.62 444.90 458.65 0.000057 1.50 10561.21 1189.18 0.07 DC-1 28586 500-year 55500.00 440.01 487.68 451.31 487.77 0.000112 272 22501.20 2122.78 0.10 DC-1 28217 10-year 9700.00 440.01 456.54 445.27 456.56 0.000090 1.27 8110.84 848.36 0.07 DC-128217 50-year 12500.00 440.01 457.91 445.80 457.94 0.000102 1.42 9311.12 906.30 0.07 DC-1 28217 100-year 13500.00 440.01 458.59 445.98 458.62 0.000100 1.44 9969.78 1008.04 0.07 DC-1 28217 500-year 55500.00 440.01 467.59 451.07 487.71 0.000259 3.04 20633.00 2242.10 0.12 DC-1 27892 10-year 9700.00 440.01 456.48 445.82 456.52 0.000183 1.62 6021.04 725.21 0.09 DC-1 27892 50-year 12500.00 440.01 457.84 448.55 457.89 0.000183 1.80 7054.04 791.12 0.10 DC-1 27892 100-year 13500.00 440.01 458.52 446.79 458.57 0000177 1.81 7600.85 816.08 0.10 DC-1 27892 500-year 55500.00 440.01 467.44 452.83 467.61 0.000382 3.43 17569.03 2409.94 0.14 DC-1 27602 10-year 14500.00 440.01 458.41 448.68 458.48 0.000126 1.48 7200.46 1007.85 0.09 DC-1 27602 50-year 19000.00 440.01 457.75 450.18 457.84 0.000131 1.56 8479.95 1055.17 0.09 DC-1 27802 100-year 21000.00 440.01 458.43 450.36 458.53 0.000137 1.83 9167.05 1148.86 0.09 DC-1 27602 500-year 55500.00 440.01 467.40 452.98 487.58 0.000087 1.77 19817.28 2124.34 0.07 DC-1 27298 10-year 14500.00 440.01 458.30 448.35 456.40 0.000566 2.17 5795.06 959.68 0.13 DC-1 27298 50-year 19000.00 440.01 457.64 449.89 457.77 0.000504 2.22 7032.06 1073.80 0.12 DC-1 27298 100-year 21000.00 440.01 458.31 450.21 458.45 0.000460 221 7665.54 1137.66 0.12 DC-1 27298 500-year 55500.00 440.01 487.33 454.54 467.52 0.000203 2.15 17863.88 212128 0.08 DC-1 26970 10-year 14500.00 440.01 458.01 447.40 458.22 0.000602 3.90 4443.69 868.16 0.20 DC-1 26970 50-year 19000.00 440.01 457.41 448.54 457.61 0.000454 3.91 5834.60 1014.22 0.19 DC-1 26970 100-year 21000.00 440.01 458.12 449.00 458.30 0.000408 3.80 6562.39 1034.61 0.18 DC-1 26970 500-year 55500.00 440.01 487.30 456.87 487.45 0.000148 3.15 17853.41 2225.61 0.12 DC-1 26888 10-year 14500.00 440.01 455.95 448.75 456.06 0000423 2.83 5469.81 1005.89 0.18 DC-1 28888 50-year 19000.00 44001 457.35 450.22 457.47 0.000365 2.73 6916.26 1058.41 0.15 DC-1 26688 100-year 21000.00 440.01 458.07 450.86 458.18 0.000326 2.82 7681.05 1086.15 0.14 DC-1 26688 500-year 55500.00 440.01 487.27 455.27 487.41 0.000137 2.25 19228.82 2344.80 0.09 DC-1 26383 10-year 14500.00 439.76 455.95 448.77 456.00 0.000076 1.25 8535.00 1101.38 0.07 DC-1 26383 50-year 19000.00 439.78 457.35 449.42 457.41 0.000077 1.31 10106.91 1144.89 0.07 DC-1 26383 100-year 21000.00 439.76 458.06 449.60 458.12 0.000074 1.30 10934.25 1193.98 0.07 DC-1 26383 500-year 55500.00 439.78 467.26 452.05 487.37 0.000052 1.40 22968.91 2100.94 0.08 DC-1 26087 10-year 14500.00 439.76 455.93 448.55 455.97 0.000073 0.91 9398.30 1218.57 0.05 DC-1 26087 50-year 19000.00 439.78 457.33 448.98 457.38 0.000073 0.93 11138.39 1268.45 0.05 DC-1 26087 100-year 21000.00 439.76 458.04 449.32 458.10 0.000069 0.93 12054.54 1290.98 0.05 DC-1 26087 500-year 55500.00 439.78 487.28 451.77 487.35 0.000048 1.11 24985.35 2288.39 0.04 DC-1 25797 10-year 14500.00 439.76 455.91 448.52 455.85 0.500068 0.87 10618.82 1316.64 0.05 DC-1 25797 50-year 19000.00 439.78 457.32 449.04 457.36 0.000070 0.90 12498.83 1388.28 0.05 DC-1 25797 100-year 21000.00 439.76 458.03 449.19 458.08 0.000067 0.89 13486.01 1392.04 0.05 DC-1 25797 500-year 55500.00 439.76 487.26 451.19 487.33 0.000049 1.10 27341.19 2513.89 0.04 .ems HEC-RAS Plan:Plan 1 River:DentonCreek Reach:DC-1(Continued) Reach River Ste Profile 0 Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Fronde!CAI (cf.) (R) (R) (R) (R) (Wit) (R/e) (e4 R) (R) DC-1 25499 10-year 14500.00 439.76 455.88 448.69 455.92 0.000102 1.45 9252.32 1383.25 008 DC-1 25499 50-year 19000.00 439.76 457.28 449.30 457.33 0.000095 1.47 11223.11 1435.58 0.08 DC-1 25499 100-year 21000.00 439.78 45800 449.47 458.05 0000087 1.45 1228125 1502.41 0.08 DC-1 25499 500-year 55500.00 439.76 487.24 452.00 487.31 0.000050 1.30 28018.93 2587.99 0.06 DC-1 25188 10-year 14500.00 439.76 455.83 447.85 455.88 0.000148 1.74 8579.92 1866.71 0.12 DC-1 25168 50-year 19000.00 439.76 45725 450.24 45729 0.000123 1.81 10952.42 169024 0.10 DC-1 25168 100-year 21000.00 439.76 457.97 450.59 458.02 0.000109 1.53 12179.98 1701.97 0.09 DC-1 25168 500-year 55500.00 439.78 487.23 453.90 467.29 0.000052 1.34 28795.04 2722.48 0.06 DC-1 24819 10-year 14500.00 439.78 455.74 448.92 455.80 0.000304 2.13 7043.88 1422.70 0.12 DC-1 24819 50-year 19000.00 439.76 457.17 450.28 457.23 0.000234 1.98 9109.68 1468.11 0.10 DC-1 24819 100-year 21000.00 439.76 457.90 450.68 457.98 0.000200 1.88 10194.05 1497.97 0.09 DC-1 24819 500-year 55500.00 439.76 487.19 454.31 467.27 0.000074 1.49 25490.61 2242.98 0.06 DC-1 24519 10-year 14500.00 439.73 455.75 448.32 455.77 0.000026 0.78 11687.69 1277.03 0.04 DC-1 24519 50-year 19000.00 439.73 457.17 446.68 457.20 0.000029 0.83 13385.47 1373.51 0.04 DC-1 24519 100-year 21000.00 439.73 457.90 446.83 457.94 0.000030 0.86 14328.84 1529.50 005 DC-1 24519 500-year 55500.00 439.73 487.18 449.24 487.28 0.000029 1.07 28207.59 2331.09 0.05 DC-1 24099 10-year 14500.00 439.76 455.74 448.22 455.78 0.000018 0.76 12914.55 1241.34 0.04 DC-1 24099 50-year 19000.00 439.76 457.16 448.54 457.19 0.000021 0.66 14720.59 131729 0.04 DC-1 24099 100-year 2100000 439.78 457.89 446.87 457.92 0.000021 0.90 15703.92 1408.31 0.04 DC-1 24099 500-year 55500.00 439.76 487.18 448.71 46724 0000022 128 28860.17 2317.88 0.05 DC-1 23802 10-year 14500.00 439.76 455.55 447.23 455.73 0.000242 2.78 4464.24 1193.52 0.14 DC-1 23802 50-year 19000.00 439.76 458.92 447.98 457.18 0.000271 3.11 5125.24 1284.85 0.15 DC-1 23802 100-year 21000.00 439.76 457.84 448.34 457.89 0.000288 3.21 5513.58 1334.91 0.15 DC-1 23802 500-year 55500.00 439.78 488.74 453.38 487.19 0000264 4.39 10747.92 2529.96 0.16 DC-1 23508 10-year 15000.00 439.78 454.90 447.92 455.54 0.001362 6.48 2346.45 252.44 0.32 DC-1 23506 50-year 19000.00 439.76 458.09 449.03 458.94 0.001598 7.45 2834.89 408.54 0.35 DC-1 23506 100-year 21000.00 439.76 458.73 449.55 457.66 0.001661 7.82 2813.21 658.54 0.38 DC-1 23506 500-year 55500.00 439.76 484.92 457.20 488.87 0.002080 11.78 5514.85 2705.89 0.43 DC-1 23229 10-year 15000.00 439.76 454.87 447.02 455.17 0.001056 5.73 2843.15 220.22 028 DC-1 23229 50-year 19000.00 439.78 455.82 448.08 456.49 0.001263 8.83 2909.32 272.21 0.31 DC-1 23229 100-year 21000.00 439.76 456.45 448.57 457.20 0.001324 8.98 3074.34 429.84 032 DC-1 23229 500-year 55500.00 439.78 484.57 455.29 486.28 0.001766 10.82 5777.50 2909.99 0.40 DC-1 22655 10-year 15000.00 438.24 454.39 448.42 454.84 0.000681 4.30 3888.26 437.95 0.22 C DC-1 22855 50-year 19000.00 438.24 455.53 447.39 455.84 0.000801 4.87 4315.39 578.97 0.25 DC-1 22655 100-year 21000.00 438.24 458.18 447.95 458.51 0.000827 5.11 4585.00 754.47 0.25 DC-1 22655 500-year 55500.00 438.24 484.72 453.00 485.32 0.000799 7.03 9655.77 2886.35 027 DC-1 22211 10-year 15000.00 435.00 454.17 443.93 454.41 0.000815 4.23 3825.68 312.94 0.21 DC-1 22211 50-year 19000.00 435.00 455.24 445.05 455.57 0.000783 4.95 4183.08 358.27 0.24 DC-1 22211 100-year 21000.00 435.00 455.85 445.52 456.23 0.000808 5.23 435827 590.90 0.25 DC-1 22211 500-year 55500.00 43500 484.22 451.61 464.99 0.001055 8.00 8508.98 2610.82 0.30 DC-1 22146 MacArthur 8oulev Bridge DC-1 22080 10-year 15000.00 435.00 454.11 443.93 454.38 0.000824 4.25 3808.39 312.69 0.22 DC-1 22080 50-year 19000.00 435.00 455.18 445.05 455.50 0.000776 4.87 414020 318.91 0.24 DC-1 22080 100-year 21000.00 435.00 455.69 445.52 458.07 0.000839 5.29 4305.73 542.50 0.25 DC-1 22080 500-year 55500.00 435.00 461.91 451.61 483.04 0.001892 9.41 8987.89 2562.89 037 DC-1 21798 10-year 15000.00 43824 453.81 448.04 454.14 0.000808 4.98 3441.08 801.32 025 DC-1 21798 50-year 19000.00 438.24 454.78 447.00 455.23 0.000995 5.82 3893.07 1227.18 0.28 DC-1 21798 100-year 21000.00 438.24 455.27 447.44 455.78 0.001063 6.18 4140.49 1591.88 0.29 DC-1 21798 500-year 55500.00 438.24 461.51 453.53 462.58 0.001552 9.53 8013.16 2489.13 0.37 DC-1 21558 10-year 15000.00 438.24 453.68 445.36 453.94 0.000660 4.49 3782.48 874.82 023 DC-1 21558 50-year 19000.00 438.24 454.63 448.25 454.98 0.000799 5.19 4177.02 1285.97 0.25 DC-1 21558 100-year 21000.00 438.24 455.12 448.87 455.51 0.000850 5.48 4393.81 1438.83 0.28 DC-1 21558 500-year 55500.00 438.24 481.13 452.09 482.18 0.001482 9.21 7151.92 2009.13 0.37 DC-1 21354 10-year 15000.00 438.24 453.53 445.14 453.79 0.000639 4.47 3742.97 704.58 023 DC-1 21354 50-year 19000.00 438.24 454.45 448.07 454.80 0.000790 5.16 4202.90 1071.89 0.28 DC-1 21354 100-year 21000.00 438.24 454.93 448.49 455.32 0.000845 5.43 4469.69 1335.76 0.27 DC-1 21354 500-year 55500.00 438.24 480.90 452.15 461.80 0.001438 8.84 8208.71 1872.54 0.38 DC-1 21059 10-year 15000.00 438.24 453.18 445.84 453.52 0001393 4.81 3208.87 398.49 0.24 DC-1 21059 50-year 19000.00 438.24 453.98 448.54 454.45 0.001763 5.42 3463.45 757.43 0.27 DC-1 21059 100-year 21000.00 438.24 454.40 448.98 454.94 0.001910 5.77 3605.45 998.76 0.28 DC-1 21059 500-year 55500.00 43824 459.45 452.59 481.06 0.003841 10.19 5981.96 1543.93 0.42 DC-1 20818 10-year 15000.00 438.24 453.06 443.42 453.20 0.000320 2.98 5054.87 541.39 0.16 DC-1 20616 50-year 19000.00 438.24 453.84 444.18 454.03 0.000415 3.49 5528.87 754.91 0.18 DC-1 20818 100-year 21000.00 43824 454.27 444.52 454.48 0.000454 3.71 5820.68 944.88 0.19 DC-1 20816 500-year 55500.00 438.24 459.34 449.19 459.98 0.001026 8.82 9433.39 1688.21 0.29 DC-1 20314 10-year 15000.00 438.24 452.73 444.58 453.04 0.000735 4.47 343033 412.41 0.22 DC-1 20314 50-year 19000.00 438.24 453.39 445.44 453.82 0.000988 5.34 3708.85 435.55 0.25 C DC-1 20314 100-year 21000.00 438.24 453.74 445.86 454.24 0.001094 5.72 3866.73 446.42 0.27 DC-1 20314 500-year 55500.00 438.24 457.55 451.48 459.37 0.003011 11.08 6038.85 1421.90 0.48 ® HEC-RAS Plan:Plan 1 River:DentonCreek Reach:DC-1(Continued) Reach River Ste Prone 0 Total Min Ch El W.S.Slav Crit W.S. E.G.Elav E.G.Slope Vet Chnl Flow Area Top Width Fronde a Chl (ofd) (8) (8) (8) (8) (em) (Me) (eq 8) (8) DC-1 20054 10-year 1500000 438.24 452.70 443.45 452.85 0.000424 3.08 4848.23 411.16 0.15 DC-1 20054 50-year 1900000 438.24 453.35 444.19 453.56 0.000582 3.69 5119.01 428.07 0.18 DC-1 20054 100-year 2100000 438.24 453.71 444.53 453.95 0.000647 3.96 5273.97 436.31 0.19 DC-1 20054 500-year 55500.00 438.24 457.59 448.97 458.51 0.001786 7.75 7485.18 1311.91 0.33 DC-1 19742 10-year 15000.00 431.21 452.61 441.86 452.73 0.000290 2.99 5351.22 458.68 0.14 DC-1 19742 50-year 19000.00 431.21 453.22 44264 453.41 0.000399 3.60 5843.21 490.65 0.17 DC-1 19742 100-year 21000.00 431.21 453.57 443.01 453.78 0.000449 3.88 5812.61 494.44 0.18 DC-1 19742 500-year 55500.00 431.21 457.14 447.91 458.00 0.001435 7.80 7694.23 720.55 0.32 DC-1 19421 10-year 15000.00 429.83 452.45 441.35 452.81 0.000490 3.29 4870.68 490.74 0.15 DC-1 19421 50-year 19000.00 429.83 453.01 44231 453.24 0.000668 3.93 4949.79 508.78 0.18 DC-1 19421 100-year 21000.00 429.83 453.33 442.85 453.80 0.000744 4.21 5113.23 515.48 0.19 DC-1 19421 500-year 55500.00 429.83 458.32 448.80 457.41 0.002441 8.55 6767.09 983.77 0.35 DC-1 19071 10-year 15000.00 430.45 452.46 440.92 452.51 0.000122 1.95 8153.92 1011.32 0.09 DC-1 19071 50-year 19000.00 430.45 453.03 441.76 453.10 0.000161 2.28 8734.90 1025.24 0.11 DC-1 19071 100-year 21000.00 43045 453.35 412.18 453.44 0.000176 2.42 9070.64 1027.51 0.11 a DC-1 19071 500-year 55500.00 43845 458.58 448.64 456.89 0.000473 4.43 12465.51 135259 0.18 DC-1 18826 10-year 15500.00 430.03 452.38 440.84 452.47 0.000194 2.62 7335.36 1162.97 0.12 DC-1 18826 50-year 20000.00 430.03 452.93 441.77 453.05 0000269 3.14 7993.55 1251.40 0.15 DC-1 18828 100-year 22000.00 430.03 453.25 442.17 453.38 0.000288 3.29 8397.39 129723 0.15 DC-1 18828 500-year 55500.00 430.03 456.42 447.90 458.76 0.000624 5.36 12410.92 1611.90 0.23 DC-1 18592 10-year 15500.00 430.43 452.37 440.15 452.42 0.000141 1.91 8983.04 1632.69 0.09 DC-1 18592 50-year 20000.00 430.43 452.91 441.09 452.98 0.000194 2.29 9698.27 1705.34 0.10 DC-1 18592 100-year 22000.00 430.43 453.23 441.48 453.31 0.000209 2.41 10143.13 1749.84 0.11 DC-1 18592 500-year 55500.00 430.43 456.37 448.43 456.80 0.000482 4.15 15167.47 2315.00 0.17 DC-1 18335 10-year 15500.00 430.13 452.34 440.39 452.38 0.000118 1.93 10909.37 2137.42 0.09 DC-1 18335 50-year 20000.00 430.13 452.87 441.30 452.93 0.000153 227 11932.46 2244.47 0.11 DC-1 18335 100-year 22000.00 430.13 453.19 441.70 453.25 0.000161 2.36 12555.18 2295.01 0.11 DC-1 18335 500-year 55500.00 430.13 458.32 446.84 456.47 0.000324 3.74 18665.08 3045.19 0.18 DC-1 18114 10-year 15500.00 430.29 452.35 440.20 452.36 0000044 1.09 15967.99 2502.60 0.05 DC-1 18114 50-year 20000.00 430.29 452.88 441.11 452.90 0.000060 1.30 16971.22 2598.23 0.06 • • DC-1 18114 100-year 22000.00 430.29 453.20 441.52 453.22 0.000065 1.37 17580.97 2617.90 0.07 EDDDCC--.1 18114 500-year 55500.00 430.29 456.31 448.89 456.40 0.000162 2.45 23564.15 324621 0.11 1 18045 Let Strutt DC-1 17892 10-year 15500.00 430.63 452.27 441.21 452.34 0.000229 2.43 11504.98 2248.50 0.11 DC-1 17892 50-year 20000.00 430.83 452.77 44213 452.88 0.000317 293 12366.47 2344.33 0.14 DC-1 17892 100-year 22000.00 430.63 453.08 442.51 453.18 0.000343 3.09 12906.90 2395.07 0.14 DC-1 17892 500-year 55500.00 430.63 456.01 449.26 458.31 0.000854 5.51 18088.09 2979.05 0.23 DC-1 17626 10-year 15074.16 429.13 452.15 447.99 452.25 0.000463 2.96 6358.34 1354.69 0.15 DC-1 17626 50-year 19215.68 429.13 452.62 448.83 452.74 0.000576 3.39 6929.48 1373.74 0.17 DC-1 17628 100-year 21142.04 429.13 452.92 448.83 453.05 0.000592 3.49 7301.49 1390.70 0.17 DC-1 17826 500-year 51496.23 429.13 455.67 451.06 456.03 0.001030 522 10741.78 1914.69 0.23 DC-1 17235. 10-year 12236.88 431.73 451.48 448.19 451.84 0.002018 5.89 277666 727.34 0.31 • DC-1 17235 50-year 14877.99 431.73 451.80 447.45 45225 0.002329 6.24 3028.30 751.36 0.33 DC-1 17235 100-year 16267.49 431.73 452.06 448.12 452.55 0.002434 6.48 3222.31 765.51 0.34 DC-1 17235 500-year 36511.86 431.73 454.20 452.41 455.16 0.003875 9.17 4882.96 975.98 0.44 DC-1 16726 10-year 9685.81 430.68 451.32 451.38 0.000407 2.69 5777.56 1060.71 0.14 DC-1 16726 50-year 11068.15 430.68 451.63 451.71 0.000482 2.98 6116.33 1074.48 0.15 DC-1 18728 100-year 12536.99 430.68 451.88 451.96 0.000557 3.25 6365.65 1075.73 0.18 DC-1 16728 500-year 27269.75 430.68 453.85 454.08 0.001182 5.22 8542.23 1185.33 024 DC-1 16294 10-year 8990.35 430.33 450.88 451.11 0.001739 4.47 3276.27 1043.18 029 DC-1 16294 50-year 10091.89 430.33 451.17 451.40 0.001838 4.66 3572.74 1052.19 0.30 DC-1 16294 100-year 11281.34 430.33 451.34 451.61 0.002065 4.97 3756.55 105289 0.32 DC-1 16294 500-year 22899.35 430.33 452.97 453.44 0.003518 6.96 5464.31 1059.34 0.41 DC-1 15903 10-year 7681.33 425.52 450.51 450.83 0.000831 3.35 3788.76 1016.33 0.19 DC-1 15903 50-year 834284 425.52 450.79 450.91 0.000852 3.42 4071.05 1062.70 0.19 DC-1 15903 100-year 9330.10 425.52 450.90 451.04 0.001004 3.72, 4189.97 1077.47 0.21 DC-1 15903 500-year 17983.89 425.52 452.15 452.43 0.001934 5.44 5728.96 1297.29 0.29 DC-1 15238 10-year 7255.55 429.73 450.22 450.29 0.000608 2.76 5046.86 1887.25 0.18 DC-1 15238 50-year 7835.05 429.73 450.51 450.57 0.000593 2.77 5550.76 1931.89 0.17 DC-1 15238 100-year 8662.75 429.73 450.57 450.85 0.000693 3.00 5669.41 1934.75 0.18 DC-1 15238 500-year 18076.34 429.73 451.61 451.74 0.001227 4.19 7585.24 1891.95 0.25 DC-1 14819 10-year 7164.37 429.00 450.10 450.14 0.000370 2.24 6186.95 1877.28 0.14 DC-1 14819 50-year 7736.77 429.00 450.39 450.43 0.000361 2.23 6716.80 2035.68 0.14 DC-1 14819 100-year 841523 429.00 45044 450.48 0.000414 2.39 6810.65 2048.71 0.15 DC-1 14819 500-year 14939.93 429.00 451.39 451.48 0.000726 3.24 8675.37 2104.03 0.19 DC-1 14425 10-year 7107.33 429.20 450.04 450.05 0.000142 1.47 8812.93 2052.87 0.08 ® DC-114425 50-year 7681.14 428.20 450.33 450.34 0.000140 1.49 9385.78 2084.57 0.08 DC-1 14425 100-year 8200.54 429.20 450.37 450.39 0.000156 1.57 9467.89 2087.36 0.08 HEC-RAS Plan:Plan 1 River:DentonCreek Reach:DC-1(Continued) Reach River St. Profile 0 Total Min Ch El W.S.Elea CM W.S. E.G.Elan EG.Slope Vel Chnl Flow Nee Top Width Fronde a Ch1 ! (aa) (8) (8) (9) (8) (915) (Me) (e96) (8) DC-1 14425 500-year 13557.69 429.20 451.27 451.30 0.000263 2.15 11260.60 2122.96 0.1l DC-1 13768 10-year 7106.63 431.63 449.97 449.98 0.000135 1.52 10047.14 2405.69 0.08 DC-1 13768 50-year 7680.98 431.63 450.26 450.27 0.000135 1.54 10748.13 2426.19 0.08 DC-1 13768 100-year 8175.79 431.63 450.29 450.31 0.000151 1.62 10827.45 2427.47 0.08 DC-1 13768 500-year 12483.08 431.63 451.15 451.17 0.000225 2.06 12941.35 2527.93 0.10 DC-1 13144 10-year 6985.96 430.19 449.92 449.83 0.000110 1.39 11083.01 2436.01 0.07 DC-1 13144 50-year 7553.38 430.19 450.20 450.22 0.000120 1.47 11800.93 2539.46 0.08 DC-1 13144 100-year 7845.04 430.19 450.23 450.25 0.000127 1.52 11875.96 2540.39 0.08 DC-1 13144 500-year 10985.71 430.19 451.08 451.09 0.000153 1.74 14030.16 2609.75 0.09 DC-1 12551 10-year 6899.61 428.63 449.88 449.89 0.000093 1.42 10114.17 2136.96 0.07 DC-1 12551 50-year 7470.58 428.83 450.16 450.18 0.000094 1.45 10715.53 2152.87 0.07 DC-1 12561 100-year 7572.10 428.63 450.19 450.20 0.000095 1.46 10776.41 2154.69 0.07 DC-1 12551 500-year 9711.68 428.63 451.03 451.04 0.000106 1.60 12570.70 2194.43 0.07 DC-1 11777 10-year 6741.39 430.59 449.70 449.79 0.000378 2.92 5413.43 1276.97 0.14 DC-1 11777 50-year 7275.88 430.59 449.99 450.07 0.000385 2.99 5775.93 1276.98 0.14 DC-1 11777 100-year 7331.27 430.59 450.02 450.10 0.000385 2.99 5811.98 1278.99 0.14 DC-1 11777 500-year 9061.39 430.59 450.84 450.93 0.000405 3.19 6871.37 1277.01 0.14 DC-1 11175 10-year 6741.39 423.24 449.50 449.57 0.000333 2.56 5131.24 1050.55 0.12 DC-1 11175 50-year 7275.88 423.24 449.78 449.85 0000342 2.63 5424.56 1051.53 0.12 DC-1 11175 100-year 7331.27 423.24 449.81 449.88 0.000343 264 5453.70 1051.62 0.13 DC-1 11175 500-year 9081.39 423.24 450.63 450.70 0.000369 2.84 6312 03 1054.74 0.13 DC-1 10498 10-year 8741.39 428.52 449.27 449.34 0.000444 2.95 5212.19 1245.82 0.15 DC-1 10496 50-year 7275.88 428.52 449.55 449.62 0.000443 2.99 5562.03 1249.13 0.15 DC-1 10496 100-year 7331.27 428.52 449.57 449.65 0.000443 2.99 5596.72 1249.48 0.15 i DC-1 10496 500-year 9061.39 428.52 450.39 450.47 0.000443 3.12 6620.98 1259.63 0.15 DC-1 9987 10-year 6741.39 430.68 448.88 449.03 0.000796 3.93 3672.22 1031.12 0.19 DC-1 9967 50-year 7275.88 430.68 449,16 449.31 0.000790_ 3.97 3966.18 1035.91 0.19 j DC-1 9967 100-year 7331.27 430.68 449.19 449.34 0.000789 3.97 3995.17 1036.36 0.19 )t DC-1 9987 500-year 9061.39 430.68 450.01 450.16 0.000790 4.14 4854.91 1088.46 0.19 DC-1 9415 10-year 6741.39 429.06 448.70 448.76 0.000316 2.44 6166.64 1401.03 0.13 DC-1 9415 50-year 7275.88 429.06 448.98 449.05 0.000324 2.50 6559.72 1404.81 0.13 ® DC-1 9415 100-year 7331.27 429.06 449.00 449.07 0.000325 2.51 8598.35 1405.18 0.13 DC-1 9415 500-year 9061.39 429.06 449.81 449.89 0.000352 2.70 7745.54 1473.76 0.14 DC-1 8810 10-year 6741.39 427.41 448.61 448.63 0.000191 1.77 9584.22 1671.31 0.09 DC-1 8810 50-year 7275.88 427.41 448.88 448.91 0.000197 1.83 10052,19 1704.30 0.10 DC-1 8810 100-year 7331.27 42741 448.91 448.94 0.000197 1.83 10098.74 171205 0.10 DC-1 8810 500-year 9061.39 427.41 449.71 449.74 0.000216 1.99 11467.47 1712.05 0.10 DC-1 8225 10-year 6741.39 431.75 448.41 448.49 0.000491 3.16 6421.17 1472 33 0.15 DC-1 8225 50-year 7275.88 431.75 448.68 448.77 0.000495 3.22 6829.65 1477.55 0.15 DC-1 8225 100-year 7331.27 431.75 448.71 448.80 0.000496 3.22 6869.56 1478.06 0.15 DC-1 8225 500-year 9061.39 431.75 449.50 449.59 0.000514 3.41 8049.15 1496.94 0.18 DC-1 7315 10-year 6741.39 425.14 447.72 447.93 0.000898 3.98 2809.10 1073.93 0.19 DC-1 7315 50-year 7275.88 425.14 447.97 448.20 0.000939 4.12 3091.58 1121.53 0.20 DC-1 7315 100-year 7331.27 425,14 448.00 448.23 0.000942 4.14 3120.77 1122.79 0.20 DC-1 7315 500-year 9061.39 425.14 448.79 449.03 0000982 4.39 405219 1214.45 0.20 DC-1 4182 10-year 6741.39 42729 446.67 446.72 0.000321 227 4758.91 1185.70 0.12 DC-1 4182 50-year 7275.88 427.29 448.98 447.02 0.000303 2.24 5124.10 1188.17 0.12 DC-1 4162 100-year 7331.27 427.29 447.01 447.05 0.000302 2.24 5161.31 1188.42 0.12 DC-1 4162 500-year 9061.39 427.29 447.94 447.98 0.000263 219 8270.18 1216.57 0.11 Ek DC-1 3884 10-year 6741.39 42763 446.58 446.64 0.000349 2.89 5172.13 1333.93 0.13 "' 3! DC-1 3884 50-year 7275.88 427.63 448.90 446.96 0.000335 268 5591.37 1339.57 0.13 DC-1 3884 100-year 7331.27 42763 44693 446.99 0000334 267 5634.06 134007 0.13 DC-1 3884 500-year 9061.39 427.63 447.87 447.92 0.000300 265 6908.53 1388.38 0.12 DC-1 3196 10-year 6741.39 426.48 446.42 448.47 0000380 241 6255.59 1838.69 0.13 DC-1 3196 50-year 7275.88 426.48 446.75 446.80 0.000349 2.34 6862.79 1850.16 0.13 DC-1 3196 100-year 7331.27 426.48 446.79 446.83 0.000346 2.33 6924.28 1850.33 0.13 DC-1 3196 500-year 9061.39 426.48 447.76 447.79 0.000282 2.18 8735.91 1870.30 0.11 DC-1 2572 10-year 6741.39 420.48 448.28 446.35 0000180 233 5569.34 1168.32 0.10 DC-1 2572 50-year 7275.88 420.48 448.61 446.68 0.000184 239 5954.17 1179.02 0.10 DC-1 2572 100-year 733127 420.48 446.64 446.71 0000184 239 5993.34 1180.65 0.10 DC-1 2572 500-year 9061.39 420.48 44762 447.89 0.000193 2.54 722147 1340.82 0.10 ., DC-1 2112 10-par 6741.39 426.01 446.07 44622 0.000601 3.66 449214 124822 0.17 DC-1 2112 50-year 7275.88 42601 446.41 446.55 0.000580 3.65 4913.82 1248.22 0.17 DC-1 2112 100-ye8r 7331.27 428.01 446.44 448.58 0000578 3.65 4956.41 1248.22 0.17 DC-1 2112 500-year 9061.39 426.01 447.44 447.56 0.000526 3.64 6198.61 1248.22 0.16 DC-1 1623 10-year 6741.39 425.47 445.87 445.97 0.000424 293 4715.86 1051.09 0.15 DC-1 1623 50-year 7275.88 425.47 446.21 44631 0.000420 297 5073.16 1058.13 0.15 1;1 DC-1 1623 100-year 733127 425.47 446.24 448.34 0.000420 298 5109.36 1056.64 0.15 DC-1 1623 500-year 9061.39 425.47 44724 447.34 0.000408 3.09 617053 106211 0.15 F SIMPe HEC-RAS Plan:Plan 1 River:DentonCreek Reach:DC-1(Continued) Reach River Ste Profile O Total M91 Ch EI W.S.Elev Cra W.S. E.O.Elev E.G.Slope Vel Chnl Flow Area Top Width Froude C Chl (cgs) (R) (8) (6) (e) (9/R) (Vs) OR 9) (6) • DC-1 1194 10-year 6741.39 422.81 445.55 445.73 0.000701 3.74 3133.62 68597 0.18 DC-1 1194 50-year 7275.88 422.81 445.89 446.07 0.000700 3.80 3366.31 68597 0.18 DC-1 1194 100-year 733127 422.81 445.93 446.10 0.000699 3.81 3389.82 68597 0.18 DC-1 1194 500-year 9061.39 422.81 446.93 447.11 0.000693 3.97 4075.62 68597 0.18 DC-1 883 10-year 6741.39 422.75 445.40 445.45 0.000295 2.29 6172.15 1096.53 0.12 • DC-1 683 50-year 7275.88 422.75 445.74 445.79 0.000292 2.32 6546.33 1096.53 0.12 DC-1 683 100-year 7331.27 422.75 445.78 445.83 0.000291 2.33 6584.15 1096.53 0.12 DC-1 683 500-year 9061.39 422.75 446.78 446.84 0.000286 2.44 7685.98 1096.53 0.12 DC-1 239 10-year 6741.39 423.81 445.16 435.02 445.27 0.000500 3.07 4424.48 798.50 0.16 DC-1 239 50-year 7275.88 423.81 445.51 435.39 445.61 0.000500 3.13 4697.06 798.50 0.16 DC-1 239 100-year 7331.27 423.81 445.54 435.43 445.64 0.000500 3.13 4724.60 798.50 0.16 DC-1 239 500-year 9061.39 423.81 446.54 436.58 448.65 0.000501 3.30 5526.46 798.50 0.16 0 HEC-RAS Plan:REVEX River:DentonCreek Reach:DC-1(Continued) Reach River Sta Profile O Total Min Ch EI W.B.Bev Crit W.S. E.G.Elan E.G.Slope Vel Chnl Flow Area Top Width Fronde i Chl (cls) (It) (8) (8) (8) (8n8) (8M) (sq 8) (8) DC-1 34413 100-year 13000.00 442.98 464.17 464.58 0.001128 5.60 3085.52 812.48 0.23 DC-1 34413 500-year 55500.00 442.98 473.18 47351 0.000505 4.93 15165.43 1790.41 0.17 DC-1 34218 10-year 9400.00 442.98 481.83 462.29 0.001304 5.51 1794.66 280.06 0.25 DC-1 34218 50-year 1200000 44298 483.22 463.70 0.001312 5.81 2548.09 734.10 0.26 DC-1 34218 100-year 13000.00 442.98 464.00 484.38 0.001075 5.41 3166.99 88758 0.23 DC-1 34218 500-year 55500.00 442.98 473.17 473.45 0.000409 4.48 15896.11 1706.81 0.15 DC-1 34064 10-year 9500.00 442.98 461.77 452.11 48207 0.001040 4.88. 2449.84 525.69 0.22 DC-1 34064 50-year 12000.00 442.98 463.22 453.58 463.49 0.000878 4.70 3340.85 689.25 0.21 DC-1 34064 100-year 13000.00 442.98 463.98 454.15 464.22 0.000767 4.52 3907.95 806.93 0.19 DC-1 34064 500-year 55500.00 442.98 47316 465.61 473.39 0.000358 4.13 16989.93 1767.65 0.14 DC-1 33852 10-year 9500.00 44298 461.78 451.65 461.88 0.000343 2.64 3789.83 693.70 0.15 DC-1 33852 50-year 12000.00 442.98 463.23 452.98 46333 0.000266 2.47 4829.51 740.09 0.13 DC-1 33852 100-year 13000.00 44298 463.99 453.48 484.08 0.000223 2.32 5438.81 872.59 0.13 DC-1 33852 500-year 55500.00 442.98 473.18 482.30 473.30 0.000165 3.03 20635.43 2342.84 0.12 DC-1 33696 10-year 9500.00 442.98 461.72 451.70 461.82 0.000387 2.49 3901.72 720.43 0.14 DC-1 33696 50-year 12000.00 442.98 463.19 452.86 483.29 0.000288 230 4975.25 757.63 0.12 DC-1 33696 100-year 13000.00 442.98 463.96 453.30 464.05 0000237 2.18 5623.41 907.14 0.11 DC-1 33698 500-year 55500.00 442.98 473.18 4112.08 473.28 0.000178 2.74 21113.34 2733.81 0.10 DC-1 33400 10-year 9500.00 442.98 461.57 45252 461.71 0.000551 289 3322.57 674.47 0.18 DC-1 33400 50-year 12000.00 442.98 463.09 453.88 463.21 0.000371 2.58 4384.38 700.77 0.13 DC-1 33400 100-year 13000.00 442.98 483.87 454.41 463.99 0.000297 2.40 4919.33 712.85 0.12 DC-1 33400 500-year 55500.00 442.98 473.03 462.67 473.23 0.000272 3.28 1579232 1763.07 0.12 DC-1 33326 10-year 9500.00 442.98 461,54 451.88 461.67 0,000423 3.00 3480.70 668.79 0,14 DC-1 33326 50-year 12000.00 442.98 463.07 453.19 463.18 0.000307 2.72 4509.53 705.47 0.12 DC-1 33326 100-year 13000.00 442.98 483.88 453.66 463.96 0.000250 2.52 5090.84 763.45 0.11 DC-1 33326 500-year 55500.00 442.98 473.00 462.55 473.21 0.000265 3.52 15291.89 1731,50 0.13 DC-1 33108 10-year 9500.00 442.98 461.28 452.87 461.53 0.001057 4.87 2558.28 631.69 0.23 DC-1 33108 50-year 12000.00 442.98 46290 454.10 483.09 0.000701 4.08 367758 729.79 0.19 DC-1 33108 100-year 13000.00 442.98 463.73 454.83 483.90 0000544 3.73 4288,82 736.80 0.17 DC-1 33108 500-year 55500.00 442.98 472.77 463.99 473.13 0000536 5.02 1248727 1525.04 0.18 DC-1 33100 Sanitary Sewer C Bridge C DC-1 33088 10-year 9500.00 442.98 481.20 453.05 461.49 0.001265 4.81 2466.78 653.46 0.24 OC-1 33088 50-year 12000.00 442.98 482.86 454.53 483.07 0.000776 4.09 3630.27 747.97 0.20 OC-1 33068 100-year 13000.00 442.98 463.70 455.07 463.87 0.000588 3.71 4260.65 754.73 0.17 DC-1 33088 500-year 55500.00 442.98 472.72 484.01 473.08 0.000541 4.91 12505.87 1539.07 0.18 DC-1 32697 10-year 9800.00 442.98 460.50 452.12 481.10 0.002004 6.37 1802.77 220.86 0.31 DC-1 32897 50-year 12000.00 442.98 481.96 453.44 462.68 0.002201 7.06 2184.80 361.61 0.33 DC-1 32897 100-year 13500.00 442.98 482.73 454.21 463.50 0.002217 7.34 2501.80 459.66 0,33 DC-1 32897 500-year 55500.00 442.98 472.23 466.84 472.86 0.001439 8.19 10416.27 1010.08 0.29 DC-1 32479 10-year 9600.00 442.98 459.31 452.05 480.02 0.003355 6.79 141323 148.58 0.39 DC-1 32479 5O-year 12000.00 442.98 480.67 453.34 481.52 0.003574 7.38 1630.64 169.22 0.41 DC-1 32479 100-year 13500.00 442.98 481.38 454.08 482.31 0.003655 7.78 1755.58 206.12 0,41 DC-1 32479 500-year 55500.00 442.98 471.52 486.62 472.21 0.001878 8.62 11387,50 1560.18 0.33 DC-1 32105 10-year 9600.00 440.99 458.36 45902 0.002145 6.52 1473.48 114.62 0.32 DC-1 32105 50-year 12000.00 440.99 459.51 460.37 0.002630 7.48 1607.78 118.57 0.36 DC-1 32105 100-year 13500.00 440.99 460.01 461.03 0.003212 8.09 1668.38 127.12 0.39 DC-1 32105 500-year 55500.00 440.99 488.62 470.81 0.005312 13.83 8147,15 1667.95 0.54 DC-1 31797 10-year 9600.00 440.99 458.40 458.59 0.000553 3.31 2751.36 423.05 0.18 DC-1 31797 50-year 12000.00 440.99 459.88 459.89 0.000496 3.31 3309.41 444.29 0.18 DC-1 31797 100-year 13500.00 440.99 460.25 480.48 0.000502 3.40 3566.13 453.81 0.18 DC-1 31797 500-year 55500.00 440.99 469.48 469.90 0.000587 4.71 10760.61 1964.64 0.18 DC-1 31611 10-year 9600.00 440.99 45826 458.47 0.000740 3.78 2608.38 449.61 0.19 DC-1 31611 50-year 12000.00 440.99 459.57 459.79 0.000826 3.65 3208.66 463.95 0.17 DC-1 31611 100-year 13500.00 440.99 460.15 480.38 0.000621 3.71 3476.70 469.77 0.17 DC-1 31811 500-year 55500.00 440.99 469.02 46976 0.000742 5.35 8388.68 733.27 0.20 DC-1 31216 10-year 9600.00 440.99 458.03 458.21 0.000646 3.68 2877.34 459.06 0.17 DC-1 31216 50-year 12000.00 440.99 459.38 459.57 0.000558 3.60 3505.75 469.37 0.16 OC-1 31216 100-year 13500.00 440.99 459.96 460.16 0.000561 3.69 3777.41 473.79 0.16 DC-1 31216 500-year 55500.00 440.99 468.95 46945 0.000555 5.02 10224.58 88524 0.18 DC-1 30740 10-year 9700.00 440.99 457.43 457.77 0.001425 4.90 2089.44 380.58 0.26 DC-1 30740 50-year 12500.00 440.99 458.85 459.19 0.001221 4.82 2717.89 537.51 0.24 DC-1 30740 100-year 13500.00 440.99 459.49 459.81 0.001073 4.64 3084.38 821.58 0.23 DC-1 30740 500-year 55500.00 440.99 488.88 489.17 0.000439 4.00 13288.97 1392.86 0.16 DC-1 30424 10-year 9700.00 440.99 457.29 457.51 0.000464 2.98 2820.68 442.34 0.15 DC-1 30424 50-year 12500.00 440.99 458.73 458.98 0.000425 2.96 3528.32 544.08 0.14 DC-1 30424 100-year 13500.00 440.99 45938 459.81 0.000388 2.88 3896.81 597.44 0.13 DC-1 30424 500-year 55500.00 440.99 488.83 489.08 0.000232 2.75 15035.65 1378.22 0.11 DC-1 30257 10-year 9700.00 440.99 457.28 457.43 0.000348 2.60 3047.78 377.26 0.13 0 HEC-RAS Plan:REVEX River DentonCreek Reach:DC-1 Continued) Reach Reser Ste Profile D Total Min Ch El W.S.Ekw Crit W.S. E.G.Bev E.G.Slope Vel Chnl Flow Area Top VVidth Froude a Chl WO (6) (8) (8) (8) (618) (Na) (a9 8) (5) DC-1 30257 50-year 12500.00 440.99 458.68 458.90 0.000338 2.68 363067 442.34 0.13 DC-1 30257 100-year 13500.00 440.99 459.33 459.55 0.000316 2.64 3927.28 475.45 0.12 DC-1 30257 500-year 55500.00 440.99 468.80 469.04 0.000218 2.95 15582.21 1480.33 0.11 DC-1 30037 10-year 9700.00 440.99 457.20 457.36 0.000324 2.39 3105.45 401.44 0.12 DC-1 30037 50-year 12500.00 440.99 458.83 458.83 0.000308 2.44 3691.05 421.95 0.12 DC-1 30037 100-year 13500.00 440.99 459.28 459.49 0.000288 2.41 3997.31 526.28 0.12 DC-1 30037 500-year 55500.00 440.99 468.78 488.98 0.000184 2.34 17361.72 1706.74 0.10 DC-1 29817 10-year 9700.00 440.99 457.10 457.29 0.000418 2.82 2850.32 386.19 0.14 DC-1 29817 50-year 12500.00 44099 458.54 458.77 0.000388 2.83 3422.78 451.35 0.13 DC-1 29817 100-year 13500.00 440.99 459.20 459.43 0.000350 2.75 3746.76 545.55 0.13 DC-1 29817 500-year 55500.00 440.99 468.82 468.92 0.000123 222 22403.54 2269.84 0.08 DC-1 29558 10-year 9700.00 440.89 457.02 457.19 0.000388 283 3170.25 50225 0.14 DC-1 29558 50-year 12500.00 440.99 458.47 458.68 0.000364 2.59 4016.28 746.03 0.13 DC-1 29558 100-year 1350000 440.99 459.15 459.33 0.000315 2.48 4581.42 1008.89 0.12 DC-1 29558 500-year 55500.00 440.99 468.80 468.88 0.000109 2.11 24828.59 2344.33 0.08 DC-1 29330 10-year 5700.00 433.40 456.70 445.06 457.03 0.001155 4.64 2178.50 208.63 0.23 DC-1 29330 50-year 12500.00 433.40 458.07 446.60 458.49 0.001368 5.30 2471.31 218.99 0.26 DC-1 29330 100-year 13500.00 433.40 458.73 447.11 458.17 0.001368 5.42 2617.12 223.93 0.26 DC-1 29330 500-year 55500.00 433.40 487.58 459.79 468.71 0.002635 9.73 8508.19 1619.41 0.37 DC-1 29267 Denton Tap Road Bridge DC-1 29207 10-year 9700.00 433.40 456.60 456.93 0.001188 4.89 2157.25 207.75 0.24 DC-1 29207 50-year 12500.00 433.40 457.94 458.37 0.001413 5.38 2442.02 217.58 0.26 DC-1 29207 100-year 13500.00 433.40 458.59 458.04 0.001412 5.48 2586.10 222.89 0.26 DC-1 29207 500-year 55500.00 433.40 467.34 46857 0.002876 10.10 8122.63 1579.88 0.39 DC-1 28791 10-year 9700.00 440.01 456.55 444.70 456.63 0.000211 238 5406.83 935.20 0.11 DC-1 28791 50-year 12500.00 440.01 457.93 445.50 458.01 0.000213 2.54 6932.40 1192.61 0.11 DC-1 28791 100-year 13500.00 440.01 458.61 445.77 458.68 0.000187 2.45 7752.83 1204.81 0.10 DC-1 28791 500-year 55500.00 440.01 467.69 453.94 467.82 0.000193 3.29 21430.70 2187.81 0.11 DC-1 28588 10-year 9700.00 440.01 456.57 444.01 456.59 0.000058 1.40 8167.87 1129.01 0.07 DC-1 28588 50-year 12500.00 440.01 457.94 444.68 457.97 0.000061 1.51 9781.10 1185.67 0.07 DC-1 28586 100-year 13500.00 440.01 458.62 .444.90 458.65 0.000057 1.50 10568.25 1189.18 0.07 {{,,.,.j8larr. DC-1 28586 500-year 55500.00 440.01 487.68 451.31 487.78 0.000112 2.72 22513.06 2122.76 0.10 DC-1 28217 10-year 9700.00 440.01 456.54 445.27 456.57 0.000090 1.27 8114.80 848.81 0.07 DC-1 28217 50-year 12500.00 440.01 457.91 445.60 457.94 0.000102 1.42 9316.44 909.61 0.07 DC-1 28217 100-year 13500.00 440.01 458.59 445.98 458.62 0.000100 1.44 9975.75 1006.57 0.07 DC-1 28217 500-year 55500.00 44001 487.60 451.07 487.72 0.000259 3.03 20643.59 2242.10 0.12 DC-1 27892 10-year 9700.00 440.01 456.49 445.82 456.53 0.000183 1.62 6024.47 725.41 0.09 DC-1 27892 50-year 12500.00 440.01 457.85 446.55 457.90 0.000183 1.80 7058.75 791.34 0.10 DC-1 27892 100-year 13500.00 440.01 458.53 448.79 458.58 0.000176 1.81 7605.78 816.30 0.10 DC-1 27892 500-year 55500.00 440.01 467.45 452.83 487.62 0.000362 3.42 17579.64 2410.69 0.14 DC-1 27602 10-year 14500.00 440.01 458.41 449.68 458.48 0.000126 1.48 7205.00 1007.95 0.09 DC-1 27602 50-year 19000.00 440.01 457.76 450.18 457.85 0.000131 1.56 8485.91 1056.08 0.09 DC-1 27602 100-year 21000.00 440.01 458.44 450.38 458.53 0.000137 1.63 9173.50 1149.36 0.09 DC-1 27602 500-year 55500.00 440.01 487.41 452.98 467.57 0.000087 1.77 19828.07 2124.86 0.07 DC-1 27298 10-year 14500.00 440.01 456.30 448.35 458.41 0.000564 2.17 5799.70 959.88 0.13 DC-1 27298 50-year 19000.00 440.01 457.65 449.69 457.78 0.000503 222 7037.99 1074.40 0.12 DC-1 27298 100-year 21000.00 440.01 458.32 450.21 458.46 0.000459 2.20 7671.63 1137.98 0.12 DC-1 27298 500-year 55500.00 440.01 487.34 454.54 467.52 0.000202 2.15 17874.09 2122.01 0.08 DC-1 26970 10-year 14500.00 440.01 458.02 447.40 458.23 0.000501 3.89 4449.54 968.33 0.20 DC-1 26970 50-year 19000.00 440.01 457.42 448.54 457.81 0.000453 3.90 5841.93 1014.43 0.19 DC-1 26970 100-year 21000.00 440.01 458.13 449.00 458.31 0000407 3.79 6569.78 1034.82 0.18 DC-1 26970 500-year 55500.00 440.01 487.31 456.67 467.46 0.000146 3.15 17864.59 2226.93 0.12 DC-1 26688 10-year 14500.00 440.01 455.98 448.75 458.07 0.000422 2.83 5476.07 1006.11 0.16 DC-1 26688 50-year 19000.00 440.01 457.38 450.22 457.48 0.000364 2.73 6924.08 1058.70 0.15 DC-1 26688 100-year 21000.00 440.01 458.07 450.86 458.19 0.000325 262 7688.97 1086.44 0.14 DC-1 26688 500-year 55500.00 440.01 467.28 455.27 467.41 0.000137 2.25 19238.64 2344.80 0.09 DC-1 26383 10-year 14500.00 439.78 455.95 448.77 458.00 0.000076 1.25 8541.86 1101.57 0.07 DC-1 26383 50-year 18000.00 439.76 457.35 449.42 457.41 0.000077 1.31 10115.38 1145.12 0.07 DC-1 26383 100-year 21000.00 439.76 458.07 449.60 458.13 0.000074 1.30 10943.01 1195.11 0.07 DC-1 26383 500-year 55500.00 439.78 487.27 452.05 487.38 0.000052 1.40 22978.82 2101.55 0.06 DC-1 26087 10-year 14500.00 439.76 455.93 448.55 455.98 0.000072 0.91 9405.92 1218.80 0.05 DC-1 26087 50-year 19000.00 439.78 457.33 448.98 457.39 0.000072 0.93 11148.80 1268.71 0.05 DC-1 26087 100-year 21000.00 439.78 458.05 449.32 458.11 0.000069 0.93 12064.08 1291.14 0.05 DC-1 26087 500-year 55500.00 439.76 487.27 451.77 487.38 0.000046 1.11 24998.27 2288.39 0.04 DC-1 25797 10-year 14500.00 439.76, 455.92 448.52 455.95 0.000068 0.87 10627.10 1316.85 0.05 DC-1 25797 50-year 19000.00 439.76 457.32 449.04 457.36 0.000069 0.90 12509.01 1368.54 0.05 DC-1 25797 100-year 21000.00 439.78 458.04 449.19 458.08 0.000067 0.89 13496.34 1392.31 0.05 DC-1 25797 500-year 55500.00 439.78 487.28 451.19 487.34 0.000049 1.09 27354.96 2513.89 0.04 0 HEC-RAS Plan:REVEX River:DentonCreek Reach:DC-1 SContinued) Reach River Sta Profile O Total Min Ch El W.S.Elev Crit W.S. E.G.Elan E.G.Slope Vel Chnl Flow Area Top Width Froude 8 Chl (eta) (5) (8) (9) (9) (Mt) (e) (W 8) (e) DC-1 25499 10-year 14500.00 439.76 455.89 448.69 45592 0000102 1.45 9281.18 1383.43 0.08 DC-1 25499 50-year 19000.00 439.76 457.29 449.30 457.34 0000094 1.47 11233.94 1436.32 0.08 DC-1 25499 100-year 21000.00 439.78 458.01 449.47 458.06 0000087 1.45 12292.54 1503.11 0.08 DC-1 25499 500-year 5550000 439.76 467.25 45200 467.32 0.000049 1.30 28034.50 2587.99 0.06 DC-1 25168 10-year 14500.00 439.76 455.84 447.65 455.88 0.000148 1.74 8590.91 1666.82 0.12 DC-1 25168 50-year 19000.00 439.76 457.25 450.24 457.30 0.000123 1.80 10965.42 1690.37 0.10 DC-1 25168 100-year 21000.00 439.78 457.98 450.59 458.02 0.000109 1.53 12192.94 1702.10 0.09 DC-1 25168 500-year 55500.00 439.76 487.24 453.90 467.30 0.000051 1.34 28811.47 2722.46 0.06 DC-1 24819 10-year 14500.00 439.76 455.74 448.92 455.81 0.000303 2.13 7053.78 1422.98 0.12 DC-1 24819 50-year 19000.00 439.76 457.17 450.28 457.24 0.000233 1.98 9121.38 1488.37 0.10 DC-1 24819 100-year 21000.00 439.76 457.91 450.86 457.97 0.000200 1.86 10205.80 1498.49 0.09 DC-1 24819 500-year 55500.00 439.76 467.20 454.31 467.28 0.000074 1.49 25505.98 2242.96 0.08 DC-1 24519 10-year 14500.00 439.73 455.75 446.32 45578 0.000026 0.75 11695.78 1277.39 0.04 DC-1 24519 50-year 19000.00 439.73 457.18 446.66 457.21 0000029 0.83 1339525 1374.64 0.04 DC-1 24519 100-year 21000.00 439.73 457.91 446.83 457.94 0.000030 0.86 14337.38 1531.33 0.05 DC-1 24519 500-year 55500.00 439.73 467.19 449.24 467.28 0.000029 107 28221.36 2331.09 0.05 DC-1 24099 10-year 1450000 439.76 455.75 44622 455.77 0000018 0.76 12923.12 1241.51 0.04 DC-1 24099 50-year 19000.00 439.76 457.17 446.54 45720 0.000021 0.86 14731.05 131805 0.04 DC-1 24099 100-year 21000.00 439.76 457.90 446.67 457.93 0000021 0.90 15714.65 1408.72 0.04 DC-1 24099 500-year 55500.00 439.76 467.19 448.71 487.25 0000022 1.28 28873.14 2317.86 0.05 DC-1 23953 10-year 14500.00 437.50 455.71 448.57 455.76 0.000047 1.43 8143.08 1232.03 0.07 DC-1 23953 50-year 19000.00 437.50 457.12 447.01 457.19 0.000054 1.62 9295.42 1352.27 0.07 DC-1 23953 100-year 21000.00 437.50 457.85 447.20 457.92 0.000054 1.68 9937.71 1412.74 0.07 DC-1 23953 500-year 55500.00 437.50 487.08 450.02 487.24 0.000061 239 18318.67 2280.65 0.08 DC-1 23908 10-year 1450000 437.50 455.68 446.61 455.76 0.000077 1.76 6680.38 1252.42 0.08 DC-1 23906 50-year 19000.00 437.50 457.08 447.14 457.18 0.000088 2.00 7876.35 1354.79 0.09 DC-1 23906 100-year 21000.00 437.50 457.81 447.35 457.92 0.000089 2.07 8209.86 1413.37 0.09 DC-1 23906 500-year 55500.00 437.50 487.00 450.68 467.23 0.000099 2.92 15183.68 2303.76 0.10 DC-1 23802 10-year 14500.00 439.78 455.55 447.23 455.73 0000242 2.76 4464.24 1193.52 0.14 DC-1 23802 50-year 19000.00 439.76 456.92 447.98 457.16 0000271 3.11 5125.24 1264.65 0.15 DC-1 23802 100-year 21000.00 439.76 457.64 448.34 457.89 0.000268 3.21 5513.56 1334.91 0.15 DC-1 23802 500-year 55500.00 439.76 466.74 453.38 487.19 0000264 4.39 10747.92 2529.96 0.16 C OC-1 23506 10-year 15000.00 439.76 454.90 447.92 455.54 0.001362 6.48 2346.45 252.44 0.32 DC-1 23506 50-year 19000.00 438.76 456.08 44903 458.94 0.001598 7.45 2834.69 408.54 0.35 DC-1 23508 100-year 21000.00 439.76 456.73 449.55 457.86 0.001881 7.82 2813.21 658.54 0.38 DC-1 23506 500-year 55500.00 439.78 464.92 457.20 466.87 0.002080 11.76 5514.85 2705.89 0.43 DC-1 23229 10-year 15000.00 439.76 454.87 447.02 455.17 0.001056 5.73 2643.15 22022 0.28 DC-1 23229 50-year 19000.00 439.78 455.82 448.08 456.49 0.001263 6.63 2909.32 272.21 0.31 DC-1 23229 100-year 21000.00 439.78 456.45 448.57 457.20 0.001324 6.98 3074.34 429.84 0.32 DC-1 23229 500-year 55500.00 43976 464.57 455.29 486.26 0.001766 10.82 5777.50 2909.99 0.40 DC-1 22655 10-year 15000.00 438.24 454.39 446.42 454.64 0.000681 4.30 3868.26 437.95 0.22 DC-1 22655 50-year 1900000 438.24 455.53 447.39 455.84 0.000801 4.87 4315.39 576.97 0.25 DC-1 22655 100-year 2100000 438.24 45616 447.95 458.51 0.000827 5.11 4585.00 754.47 0.25 DC-1 22655 500-year 55500.00 438.24 464.72 453.00 465.32 0.000799 7.03 965577 2888.35 0.27 DC-1 22211 10-year 15000.00 435.00 454.17 443.93 454.41 0.000615 4.23 3825.66 312.94 0.21 DC-1 22211 50-year 19000.00 435.00 455.24 445.05 455.57 0.000763 4.95 4163.08 358.27 0.24 DC-1 22211 100-year 21000.00 435.00 455.85 445.52 456.23 0.000808 523 435827 590.90 0.25 DC-1 22211 500-year 55500.00 435.00 464.22 451.61 484.99 0.001055 8.00 8506.88 261062 0.30 DC-1 22146 MacArthur Boulev Bridge DC-1 22080 10-year 1500000 435.00 454.11 443.93 454.36 0.000824 4.25 3808.39 312.69 0.22 DC-1 22080 50-year 19000.00 435.00 455.16 445.05 455.50 0.000776 4.97 4140.20 316.91 0.24 DC-1 22080 100-year 21000.00 435.00 455.69 445.52 458.07 0.000839 5.29 4305.73 542.50 0.25 DC-1 22080 500-year 55500.00 435.00 461.91 451.81 463.04 0.001692 9.41 6967.89 2562.89 0.37 DC-1 21798 10-year 15000.00 438.24 453.81 446.04 454.14 0.000808 4.98 3441.08 801.32 0.25 DC-1 21798 50-year 19000.00 438.24 454.78 447.00 455.23 0.000995 5.82 3893.07 1227.18 0.28 DC-1 21798 100-year 21000.00 438.24 455.27 447.44 455.78 0.001063 6.16 4140.49 1591.88 0.29 DC-1 21798 500-year 55500.00 438.24 481.51 453.53 462.56 0.001552 9.53 8013.16 2489.13 0.37 DC-1 21558 10-year 15000.00 438.24 453.68 445.36 453.94 0.000660 4.49 3782.46 674.82 023 DC-1 21558 50-year 19000.00 438.24 45483 446.25 454.98 0.000799 5.19 4177.02 1285.97 0.25 DC-1 21558 100-year 21000.00 438.24 455.12 446.67 455.51 0.000850 5.48 4393.61 1438.63 0.26 DC-1 21558 500-year 55500.00 438.24 461.13 452.09 462.18 0.001482 9.21 7151.92 2009.13 0.37 DC-1 21354 10-year 15000.00 438.24 453.53 445.14 453.79 0.000639 4.47 3742.97 704.58 0.23 DC-1 21354 50-year 19000.00 438.24 454.45 448.07 454.80 0.000790 5.18 4202.90 1071.69 0.26 DC-1 21354 100-year 21000.00 438.24 454.93 448.49 455.32 0.000845 5.43 4469.69 1335.78 0.27 DC-1 21354 500-year 55500.00 438.24 460.90 452.15 461.60 0.001438 8.64 8208.71 1872.54 0.36 DC-1 21059 10-year 15000.00 438.24 453.18 445.84 453.52 0.001393 4.61 3208.87 398.49 0.24 DC-1 21059 50-year 19000.00 438.24 453.98 446.54 454.45 0.001763 5.42 3483.45 757.43 0.27 C DC-1 21059 100-year 21000.00 438.24 454.40 446.98 454.84 0.001910 5.77 3605.45 998.76 0.28 OC-1 21059 500-year 55500.00 438.24 459.45 452.59 461.06 0.003841 10.19 5961.96 1543.93 0.42 0 HEC-RAS Plan:REVEX River:DentonCreek Reach:DC-1 Continued) Reach River Sta Prone Q Total Min Ch EI W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Fronde 1 CM (era) (8) (8) (a) (8) ( ) (Ns) (sy 9) (a) DC-1 20616 10-year 15000.00 436.24 453.08 443.42 453.20 0.000320 2.98 5054.67 541.39 0.16 DC-1 20616 50-year 19000.00 438.24 453.84 444.16 454.03 0.000415 3.49 5526.87 754.91 0.18 DC-1 20616 100-year 2100000 438.24 454.27 444.52 454.48 0.000454 3.71 5820.68 944.68 0.19 DC-1 20616 500-year 55500.00 438.24 459.34 449.19 459.98 0.001026 6.62 9433.39 1668.21 0.29 DC-1 20314 10-year 15000.00 438.24 452.73 444.56 453.04 0.000735 4.47 3430.33 412.41 0.22 DC-1 20314 50-year 19000.00 438.24 453.39 445.44 453.82 0.000988 5.34 3708.85 435.55 0.25 DC-1 20314 100-year 21000.00 438.24 453.74 445.88 454.24 0.001094 5.72 3866.73 446.42 0.27 DC-1 20314 500-year 55500.00 438.24 457.55 451.46 459.37 0.003011 11.08 6038.85 1421.90 0.48 DC-1 20054 10-year 15000.00 438.24 452.70 443.45 452.85 0.000424 3.08 4846.23 411.16 0.15 DC-1 20054 50-year 19000.00 438.24 453.35 444.19 453.58 0.000582 3.69 5119.01 428.07 0.18 DC-1 20054 100-year 21000.00 438.24 453.71 444.53 453.95 0.000647 3.96 5273.97 438.31 0.19 DC-1 20054 500-year 55500.00 438.24 457.59 448.97 458.51 0.001786 7.75 7485.18 1311.91 0.33 DC-1 19742 10-year 15000.00 431.21 452.61 441.86 452.73 0.000290 2.99 5351.22 458.68 0.14 DC-1 19742 50-year 19000.00 431.21 453.22 442.64 453.41 0.000389 3.60 5643.21 490.65 0.17 DC-1 19742 100-year 21000.00 431.21 453.57 443.01 453.78 0.000449 3.86 5812.61 494.44 0.18 DC-1 19742 500-year 55500.00 431.21 457.14 447.91 458.00 0.001435 7.80 7694.23 720.55 0.32 DC-1 19421 10-year 15000.00 429.83 452.45 441.35 452.61 0.000490 3.29 4670.68 490.74 015 DC-1 19421 50-year 19000.00 429.83 453.01 44231 453.24 0.000668 3.93 4949.79 508.78 0.18 DC-1 19421 100-year 21000.00 429.83 453.33 442.85 453.60 0.000744 4.21 5113.23 515.48 0.19 DC-1 19421 500-year 55500.00 429.83 456.32 448.80 457.41 0.002441 8.55 6787.09 983.77 0.35 DC-1 19071 10-year 15000.00 430.45 452.48 440.92 452.51 0.000122 1.95 8153.92 1011.32 0.09 DC-1 19071 50-year 19000.00 430.45 453.03 441.78 453.10 0.000161 2.28 8734.90 1025.24 0.11 DC-1 19071 100-year 21000.00 430.45 453.35 442.16 453.44 0.000178 2.42 9070.84 1027.51 0.11 DC-1 19071 500-year 55500.00 430.45 458.58 448.64 456.89 0.000473 4.43 12465.51 1352.59 018 DC-1 18826 10-year 15500.00 430.03 452.38 440.84 452.47 0.000194 2.82 7335.38 1162.97 0.12 DC-1 18826 50-year 20000.00 430.03 452.93 441.77 453.05 0.000269 3.14 7993.55 1251.40 0.15 DC-1 18826 100-year 2200000 430.03 453.25 442.17 453.38 0.000288 3.29 8397.39 1297.23 0.15 DC-1 18826 500-year 55500.00 430.03 458.42 447.90 4511.76 0.000624 5.38 12410.92 1611.90 0.23 DC-1 18592 10-year 1550000 430.43 452.37 44015 45242 0.000141 1.91 8983.04 1632.69 0.09 DC-1 18692 50-year 20000.00 430.43 452.91 441.09 452.98 0.000194 2.29 9698.27 1705.34 010 DC-1 18592 100-year 22000.00 430.43 453.23 441.46 453.31 0000209 2.41 10143.13 1749.64 0.11 C DC-1 18582 500-year 55500.00 430.13 456.37 448.43 456.60 0.000482 4.15 15167.47 2315.00 0.17 DC-1 16335 10-year 15500.00 430.13 452.34 440.39 452.38 0.000116 1.83 10908.37 2137.42 0.09 DC-1 18335 50-year 20000.00 43013 452.87 441.30 452.93 0000153 2.27 11932.48 2244.47 0.11 DC-1 18335 100-year 22000.00 430.13 453.19 441.70 453.25 0.000161 2.38 12555.18 2295.01 0.11 DC-1 18335 500-year 55500.00 430.13 458.32 446.84 456.47 0.000324 3.74 18665.08 3045.19 0.18 DC-1 18114 10-year 15500.00 430.29 45235 440.20 452.36 0.000044 1.09 15967.99 2502.60 0.05 DC-1 18114 50-year 2000000 430.29 452.88 441.11 452.90 0.000060 1.30 16971.22 2596.23 0.06 DC-1 18114 100-year 22000.00 430.29 453.20 441.52 453.22 0.000065 1.37 17580.97 2617.90 0.07 DC-1 18114 500-year 55500.00 430.29 458.31 448.89 458.40 0.000162 2.45 23584.15 3246.21 0.11 DC-1 18045 Let Siract DC-1 17892 10-year 15500.00 430.63 452.27 441.21 452.34 0.000229 2.43 11504.98 2248.50 0.11 DC-1 17892 50-year 20000.00 430.63 452.77 442.13 452.86 0.000317 2.93 12366.47 2344.33 0.14 DC-1 17892 100-year 22000.00 430.633 453.08 442.51 453.18 0.000343 3.09 12906.90 2395.07 0.14 DC-1 17892 500-year 55500.00 430.63 458.01 449.26 458.31 0.000854 5.51 18086.09 2979.05 0.23 DC-1 17628 10-year 15074.16 429.13 452.15 447.99 45225 0000463 2.96 6358.34 1354.69 0.15 DC-1 17828 50-year 1921518 429.13 452.62 44183 452.74 0000578 3.39 8929.48 1373.74 0.17 DC-1 17626 101year 21142.04 429.13 452.92 448.83 453.05 0.000592 3.49 7301.49 1390.70 0.17 DC-1 17628 500-year 51498.23 429.13 455.87 451.08 458.03 0.001030 5.22 10741.78 1914.69 0.23 DC-1 17235 10-year 12236.68 431.73 451.48 446.19 451.84 0.002018 5.89 2776.66 727.34 0.31 DC-1 17235 50-year 14677.99 431.73 451.80 447.45 452.25 0.002329 6.24 3028.30 751.36 0.33 DC-1 17235 100-year 16287.49 431.73 452.08 448.12 452.55 0.002434 8.48 322231 785.51 034 DC-1 17235 500-year 36511.86 431.73 454.20 45241 455.16 0003875 9.17 4882.96 975.98 0.44 DC-1 16726 10-year 9685.81 430.68 451.32 451.38 0000407 2.69 5777.56 1060.71 0.14 DC-1 16726 50-year 11068.15 430.68_ 451.63 451.71 0.000482 2.98 8116.33 1074.46 0.15 DC-1 16728 100-year 12538.99 430.68 451.88 451.96 0.000557 3.25 8385.65 1075.73 0.16 DC-1 16726 500-year 27269.75 430.88 453.85 454.08 0.001182 5.22 8542.23 1185.33 024 DC-1 18294 10-year 8990.35 430.33 450.88 451.11 0.001739 4.47 3276.27 1043.18 0.29 DC-1 18294 50-year 10091.89 430.33 451.17 451.40 0.001838 4.66 3572.74 1052.19 0.30 DC-1 16294 100-year 11281.34 430.33 451.34 451.61 0.002085 4.97 3758.55 1052.89 0.32 DC-1 16294 500-year 22899.35 430.33 452.97 453.44 0.003518 6.96 5484.31 1059.34 0.41 DC-1 15903 10-year 7681.33 425.52 450.51 450.63 0.000831 3.35 3788.78 1016.33 0.19 DC-1 15903 50-year 8342.84 425.52 450.79 450.91 0.000852 3.42 4071.05 1082.70 0.19 DC-1 15903 100-year 9330.10 425.52 450.90 451.04 0.001004 3.72 4189.97 1077.47 0.21 DC-1 15903 500-year 17983.89 425.52 452.15 452.43 0.001934 5.44 5728.96 129729 0.29 DC-1 15238 10-year 7255.55 429.73 45022 450.29 0.000608 2.76 5048.66 1887.25 0.16 C DC-1 15238 50-year 7835.05 128.73 450.51 450.57 0.000593 2.77 5550.76 1931.89 0.17 DC-1 15238 100-year 8862.75 429.73 45057 450.65 0.000883 3.00 5669.41 1934.75 0.18 0 HEC-RAS Plan:REVEX River:DentonCreek Reach:DC-1 Continued) Reach River Sta Profile Cl Total Min Ch EI W.S.Elev Crit W.S. E.G.Elev E.G.Slope Val Chnl Flow Area Top Width Froude•Chl (de) (9) (e) (e) (5) (MB) (Ns) (e99) (8) DC-1 15238 500-year 1607634 429.73 451.61 451.74 0.001227 4.19 7585.24 1991.95 0.25 DC-1 14819 10-year 7164.37 429.00 450.10 450.14 0.000370 2.24 6186.95 187726 0.14 DC-1 14819 50-year 7738.77 429.00 450.39 450.43 0.000381 2.23 6716.80 2035.88 0.14 DC-1 14819 100-year 8415.23 429.00 450.44 450.48 0.000414 2.39 6810.65 2048.71 0.15 DC-1 14819 500-year 14939.93 429.00 451.39 451.46 0.000726 3.24 8675.37 2104.03 0.19 DC-1 14425 10-year 7107.33 429.20 450.04 450.05 0.000142 1.47 8812.93 2052.87 0.08 DC-1 14425 50-year 7681.14 429.20 450.33 450.34 0.000140 1.49 9385.78 2084.57 0.08 DC-1 14425 100-year 8200.54 429.20 450.37 450.39 0.000156 1.57 9487.89 2087.36 0.08 DC-1 14425 500-year 13557.69 429.20 45127 451.30 0.000263 2.15 11260.60 2122.96 0.11 DC-1 13768 10-year 7106.63 43163 449.97 449.98 0.000135 1.52 10047.14 2405.69 0.08 DC-1 13768 50-year 7680.98 431.63 450.26 450.27 0.000135 1.54 10746.13 2426.19 0.08 DC-1 13768 100-year 8175.79 431.63 450.29 450.31 0.000151 1.62 10827.45 2427.47 0.08 DC-1 13768 500-year 12483.08 431.63 451.15 451.17 0.000225 2.06 12941.35 2527.93 0.10 DC-1 13144 10-year 6985.96 430.19 449.92 449.93 0.000110 1.39 11093.01 2438.01 0.07 DC-1 13144 50-year 7553.38 430.19 450.20 450.22 0.000120 1.47 11800.93 2539.46 0.08 DC-1 13144 100-year 7845.04 430.19 450.23 450.25 0.000127 1.52 11875.96 2540.39 0.08 DC-1 13144 500-year 10985.71 430.19 451.08 451.09 0.000153 1.74 14030.16 2609.75 0.09 DC-1 12551 10-year 6899.61 428.63 449.88 449.89 0.000093 1.42 10114.17 2136.96 0.07 DC-1 12551 50-year 7470.56 428.63 450.16 450.18 0.000094 1.45 10715.53 2152.87 0.07 DC-1 12551 100-year 7572.10 428.63 450.19 450.20 0.000095 1.46 10776.41 2154.69 0.07 DC-1 12551 500-year 9711.66 428.63 451.03 451.04 0.000106 1.60 12570.70 2194.43 0.07 DC-1 11777 10-year 6741.39 430.59 449.70 449.79 0.000378 2.92 5413.43 1276.97 0.14 DC-1 11777 50-year 7275.88 430.59 449.99 450.07 0.000385 2.99 5775.93 1276.98 0.14 DC-1 11777 100-year 7331.27 430.59 450.02 450.10 0.000385 2.99 5811.98 1276.99 0.14 DC-1 11777 500-year 9061.39 430.59 450.84 450.93 0.000405 3.19 6871.37 1277.01 0.14 DC-1 11175 10-year 6741.39 423.24 449.50 449.57 0.000333 2.56 5131.24 1050.55 0.12 DC-1 11175 56-year 7275.88 423.24 449.78 448.85 0.000342 2.63 5424.56 1051.53 0.12 DC-1 11175 100-year 7331.27 423.24 449.81 449.88 0.000343 2.64 5453.70 1051.62 0.13 DC-1 11175 500-year 9061.39 423.24 450.63 450.70 0.000369 2.84 6312.03 1054.74 0.13 DC-1 10496 10-year 6741.39 428.52 449.27 449.34 0.000444 2.95 5212.19 1245.62 0.15 DC-1 10496 50-year 7275.88 428.52 449.55 449.62 0.000443 2.99 5562.03 1249.13 0.15 C DC-1 10996 100-year 7331.27 428.52 449.57 449.65 0.000443 2.99 5598.72 1249.48 0.15 DC-1 10496 500-year 8061.39 428.52 450.38 450.47 0.000443 3.12 8820.86 1259.83 0.15 DC-1 9967 10-year 6741.39 430.68 448.88 449.03 0.000788 3.93 3672.22 1031.12 0.19 DC-1 9967 50-year 7275.88 430.68 449.16 449.31 0.000790 3.97 3966.18 1035.91 0.19 DC-1 9967 100-year 7331.27 430.68 449.19 449.34 0.000789 3.97 3995.17 1038.36 0.19 DC-1 9967 500-year 9061.39 430.68 450.01 450.18 0.000790 4.14 4854.91 1088.46 0.19 DC-1 9415 10-year 6741.39 429.06 448.70 448.76 0.000316 2.44 6168.84 1401.03 0.13 DC-1 9415 50-year 7275.88 429.06 448.98 449.05 0.000324 2.50 6559.72 1404.81 0.13 DC-1 9415 100-year 7331.27 429.06 449.00 449.07 0.000325 2.51 6598.35 1405.18 0.13 DC-1 9415 500-year 9061.39 429.06 449.81 449.89 0.000352 2.70 7745.54 1473.76 0.14 DC-1 8810 10-year 6741.39 42741 448.61 448.63 0.000191 1.77 9584.22 1671.31 0.09 DC-1 8810 50-year 7275.88 427.41 448.88 448.91 0.000197 1.83 10052.19 1704.30 0.10 DC-1 8810 100-year 733127 427.41 448.91 448.94 0.000197 1.83 10098.74 1712.05 0.10 DC-1 8810 500-year 9061.39 427.41 449.71 449.74 0.000216 1.99 11467.47 1712.05 0.10 DC-1 8225 10-year 6741.39 431.75 448.41 448.49 0.000491 3.16 6421.17 1472.33 0.15 DC-1 8225 50-year 7275.88 431.75 448.68 448.77 0.000495 3.22 6829.65 1477.55 0.15 DC-1 6225 100-year 7331.27 431.75 448.71 448.80 0.000496 3.22 6869.58 1478.06 0.15 DC-1 8225 500-year 9061.39 431.75 449.50 449.59 0.000514 3.41 8049.15 1496.84 0.16 DC-1 7315 10-year 6741.39 425.14 447.72 447.93 0.000898 3.98 2809.10 1073.93 0.18 DC-1 7315 50-year 7275.88 425.14 447.97 448.20 0.000939 4.12 3091.56 1121.53 0.20 DC-1 7315 100-year 7331.27 425.14 448.00 448.23 0.000942 4.14 3120.77 1122.79 0.20 DC-1 7315 500-year 9061.39 425.14 448.79 449.03 0.000982 4.39 4052.19 1214.45 0.20 DC-1 4162 10-year 6741.39 427.29 446.87 446.72 0.000321 2.27 4758.91 1185.70 0.12 DC-1 4182 50-year 7275.88 427.29 446.98 447.02 0.000303 2.24 5124.10 1188.17 0.12 DC-1 4162 100-year 7331.27 427.29 447.01 447.05 0.000302 2.24 5181.31 1188.42 0.12 DC-1 4162 500-year 9061.39 427.29 447.94 447.98 0.000263 2.19 6270.18 1216.57 0.11 DC-1 3884 10-year 6741.39 427.63 448.58 446.64 0.000349 2.69 5172.13 1333.93 0.13 DC-1 3884 50-year 7275.88 427.83 446.90 446.96 0.000335 2.88 5591.37 1339.57 0.13 DC-1 3884 100-year 733127 427.63 446.93 446.99 0.000334 267 5634.06 1340.07 0.13 DC-1 3884 500-year 9061.39 427.83 447.87 447.92 0.000300 2.65 6908.53 1388.38 0.12 DC-1 3196 10-year 6741.39 426.48 448.42 448.47 0.000380 2.41 6255.59 1838.69 0.13 DC-1 3196 50-year 7275.88 428.48 446.75 448.80 0.000349 2.34 6862.79 1850.16 0.13 DC-1 3196 100-year 7331.27 428.48 446.79 446.83 0.000348 2.33 692428 1850.33 0.13 DC-1 3196 500-year 9061.39 426.48 447.76 447,79 0.000282 2.18 8735.91 1870.30 0.11 DC-1 2572 10-year 6741.39 420.48 448.28 446.35 0.000180 2.33 5569.34 1188.32 0.10 DC-1 2572 50-year 7275.88 420.48 446.61 446.68 0.000184 2.39 5954.17 1179.02 0.10 C DC-1 2572 100-year 7331.27 420.48 448.84 448.71 0.000184 2.39 5993.34 1180.65 0.10 DC-1 2572 000-year 9061.39 420.48 447.62 447.88 0.000193 2.54 7221.47 1340.62 0.10 0 HEC-RAS Plan:REVEX River.DentonCreek Reach:DC-1 Continued) Reach River Sta Profile 0 Total Min Ch EI W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Froude at Chl (cf.) (6) (9) (6) (6) (59) (SF8) (0.419 (n) DC-1 2112 10-year 674139 426.01 446.07 446.22 0.000601 3.66 4492.14 1248.22 0.17 DC-1 2112 50-year 7275.88 428.01 448.41 446.55 0.000580 3.65 4913.82 1248.22 0.17 DC-1 2112 100-year 7331.27 426.01 448.44 448.58 0.000578 3.65 4958.41 1248.22 0.17 DC-1 2112 500-year 9061.39 426.01 447.44 447.56 0.000526 3.84 6198.61 1248.22 0.16 DC-1 1623 10-year 674139 425.47 445.87 445.97 0.000424 2.93 4715.86 1051.09 0.15 DC-1 1623 50-year 7275.88 425.47 446.21 448.31 0.000420 2.97 5073.16 1058.13 0.15 DC-1 1623 100-year 7331.27 425.47 446.24 446.34 0.000420 2.98 5109.36 1058.64 0.15 DC-1 1623 500-year 9081.39 425.47 447.24 447.34 0.000408 3.09 8170.53 1062.11 0.15 DC-1 1194 10-year 6741.39 422.81 445.55 445.73 0.000701 3.74 3133.62 685.97 0.18 DC-1 1194 50-year 7275.88 422.81 445.89 448.07 0.000700 3.80 3368.31 685.97 0.18 DC-1 1194 100-year 7331.27 422.81 445.93 446.10 0.000699 3.81 3389.82 685.97 0.18 DC-i 1194 500-year 9061.39 422.81 446.93 447.11 0.000693 3.97 4075.62 685.97 0.18 DC-1 683 10-year 6741.39 422.75 445.40 445.45 0.000295 2.29 6172.15 1096.53 0.12 DC-1 683 50-year 7275.88, 422.75 445.74 445.79 0.000292 2.32 6548.33 1096.53 0.12 DC-1 683 100-year 7331.27 422.75 445.78 445.83 0.000291 2.33 6584.15 1096.53 0.12 DC-1 683 500-year 9061.39 42275 446.78 446.84 0.000288 2.44 7685.96 1096.53 0.12 DC-1 239 10-year 6741.39 423.81 445.16 435.02 445.27 0.000500 3.07 4424.48 798.50 0.16 DC-1 239 50-year 7275.88 423.81 445.51 435.39 445.81 0.000500 3.13 4897.06 798.50 0.16 DC-1 239 100-year 7331.27 423.81 445.54 435.43 445.84 0.000500 3.13 4724.60 798.50 0.18 DC-1 239 500-year 9061.39 423.81 446.54 438.56 448.65 0.000501 3.30 5526.48 798.50 0.16 C ® HEC-RAS Plan:PROP River.DentonCreek Reach:DC-1(Continued) Reach River Sta Profile Q Total Min Ch EI W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Fronde#Chl (els) (6) (8) (ft) (ft) (818) (8/s) (sq ft) .‘ (ft) DC-1 34413 100-year 13000.00 442.98 464.17 464.58 0.001128 5.60 3085.4812.47 _0.23 DC-1 34413 500-year 55500.00 442.98 473.18 473.51 0.000505 4.93 15166.74 1790.41 0.17 DC-1 34218 10-year 9400.00 442.98 461.83 48229 0.001304 5.51 1794.63 280.04 0.25 DC-1 34218 50-year 12000.00 442.98 463.22 463.70 0.001312 5.81 2548.00 734.08 0.26 DC-1 34218 100-year 13000.00 442.98 464.00 484.38 0.001075 5.41 3168.94 867.57 0.23 DC-1 34218 500-year 55500.00 442.98 473.17 473.45 0.000409 4.48 15897.36 1706.82 0.15 DC-1 34064 10-year 9500.00 442.98 461.77 452.11 482.07 0.001040 4.88 2449.76 525.67 0.22 DC-1 34064 50-year 12000.00 44298 463.22 453.56 483.49 0.000878 4.70 3340.77 689.24 0.21 DC-1 34064 100-year 13000.00 442.98 463.98 454.15 464.22 0.000767 4.52 3907.90 806.92 0.19 DC-1 34064 500-year 55500.00 442.98 473.18 485.61 473.39 0.000358 4.13 16991.21 1767.68 0.14 DC-1 33852 10-year 9500.00 442.98 461.78 451.65 461.88 0.000343 2.84 3789.72 693.70 0.15 DC-1 33852 50-year 12000.00 442.98 463.23 452.96 463.33 0.000268 2.47 4829.41 74009 0.13 DC-1 33852 100-year 13000.00 442.98 463.99 453.48 464.08 0.000223 2.32 5438.75 872.58 0.13 DC-1 33852 500-year 55500.00 442.98 473.19 462.30 473.30 0.000165 3.03 20637.14 2342.84 0.12 DC-1 33696 10-year 9500.00 442.98 481.72 451.70 461.82 0.000387 2.49 3901.61 720.43 0.14 DC-1 33696 50-year 12000.00 442.98 483.19 452.86 463.29 0.000288 2.30 4975.13 757.58 0.12 DC-1 33696 100-year 13000.00 442.98 463.96 453.30 464.05 0.000237 2.18 5623.32 907.13 0.11 DC-1 33696 500-year 55500.00 442.98 473.16 482.08 473.28 0.000178 2.74 21115.13 2733.93 0.10 DC-1 33400 10-year 9500.00 442.98 461.57 452.52 461.71 0.000551 2.89 3322.47 674.47 0.18 DC-1 33400 50-year 12000.00 442.98 483.09 453.88 483.21 0.000371 2.58 4364.27 700.76 0.13 DC-1 33400 100-veer 13000.00 442.98 463.87 454.41 463.99 0.000297 2.40 4919.27 712.85 0.12 DC-1 33400 500year 55500.00 442.98 473.03 462.67 473.23 0.000272 3.28 15793.43 1763.07 0.12 DC-1 33326 10-year 9500.00 442.98 461.54 451.88 461.87 0.000423 3.00 3460.60 868.79 0.14 DC-1 33328 50-year 12000.00 442.98 483.07 453.19 463.18 0000307 2.72 4509.42 705.48 0.12 DC-1 33328 100-year 13000.00 442.98 463.86 453.66 463.96 0.000250 2.52 5090.77 763.44 0.11 DC-1 33326 500-year 55500.00 442.98 473.00 482.55 473.21 0.000265 3.52 15292.96 1731.50 0.13 DC-1 33108 10year 9500.00 442.98 481.28 452.67 461.53 0001057 4.67 2558.17 831.69 0.23 DC-1 33108 50-year 12000.00 442.98 462.89 454.10 483.09 0.000701 4.08 3677.45 729.79 0.19 DC-1 33108 100year 13000.00 442.98 463.73 454.63 463.90 0.000544 3.73 4288.73 736.80 0.17 DC-1 33108 500year 55500.00 442.98 472.77 463.99 473.13 0.000536 5.02 12488.14 1525.04 0.18 DC-1 33100 Sanitary Sewer Bridge DC-1 33088 10-year 9500.00 442.98 481.20 453.05 461.49 0.001265 4.81 2486.64 653.45 0.24 DC-133086 50-year 12000.00 442.98 182.86 454.53 463.07 0.000776 4.09 3630.13 747.97 0.20 DC-1 33088 100year 13000.00 442.98 463.70 455.07 483.87 0.000588 3.71 4260.53 754.73 0.17 DC-1 33088 500-year 55500.00 442.98 472.72 464.01 473.08 0.000541 4.91 12506.71 1539.08 0.18 DC-1 32897 10-year 9600.00 442.98 460.50 452.12 481.10 0.002004 6.37 1802.72 220.88 0.31 DC-1 32897 50-year 1200000 442.98 461.96 453.44 48268 0.002202 7.06 2184.71 361.59 0.33 DC-1 32897 100year 13500.00 442.98 482.73 454.21 463.50 0.002217 7.34 2501.70 459.80 0.33 DC-1 32897 500-year 55500.00 442.98 472.23 466.84 472.86 0.001438 8.19 10417.16 1010.08 0.29 DC-1 32479 10-year 9600.00 442.98 459.31 452.05 460.02 0.003355 6.79 1413.18 148.58 0.39 DC-1 32479 50-year 12000.00 442.98 460.87 453.34 461.52 0.003574 7.38 1630.58 169.22 0.41 DC-1 32479 100year 13500.00 442.98 461.38 454.08 462.31 0.003655 7.76 1755.52 208.05 0.41 DC-1 32479 500-year 55500.00 442.98 471.52 486.62 472.21 0.001877 8.62 11389.27 1560.16 0.33 DC-1 32105 10-year 9600.00 440.99 458.36 459.02 0.002145 6.52 1473.44 114.62 0.32 DC-1 32105 50-year 12000.00 440.99 459.51 460.37 0.002830 7.48 1607.72 118.58 0.38 DC-1 32105 100-year 13500.00 440.99 460.01 461.03 0.003212 8.09 1668.33 127.11 0.39 DC-1 32105 500-year 55500.00 440.99 468.65 470.82 0005269 13.79 8188.55 1669.61 0.54 DC-1 31797 10-year 9600.00 440.99 458.40 458.59 0.000553 3.31 2751.18 423.04 0.16 DC-1 31797 50-year 12000.00 440.99 459.68 459.89 0.000497 3.31 3309.18 444.28 0.16 DC-1 31797 100-year 13500.00 440.99 46025 480.48 0.000502 3.40 3565.95 453.80 0.16 DC-1 31797 500-year 55500.00 440.99 469.50 489.92 0.000565 4.70 10791.67 1965.79 0.18 DC-1 31611 10-year 9600.00 440.99 458.26 458.47 0.000741 3.78 2608.18 449.61 0.19 DC-1 31611 50-year 12000.00 440.99 459.57 459.79 0.000626 3.65 3208.39 483.84 0.17 DC-1 31811 100-year 13500.00 440.99 480.15 460.38 0.000621 3.71 3476.51 489.77 0.17 DC-1 31611 500-year 55500.00 440.99 469.03 489.77 0.000740 5.34 8380.02 733.27 0.20 DC-1 31216 10-year 9600.00 440.99 458.03 458.21 0.000646 3.68 2877.09 459.05 0.17 DC-1 31216 50-year 12000.00 440.99 459.38 459.57 0.000558 3.60 3505.48 489.37 0.16 DC-1 31216 100-year 13500.00 440.99 459.88 460.16 0.000562 3.89 3777.21 473.79 0.18 DC-1 31216 500-year 55500.00 440.89 468.96 489.47 0.000593 5.01 10238.85 885.24 0.18 DC-1 30740 10-year 9700.00 440.99 457.43 457,77 0.001426 4.91 2089.18 380.54 0.26 DC-1 30740 50-year 12500.00 440.99 458.85 459.19 0.001222 4.82 2717.48 537.41 0.24 DC-1 30740 100-year 13500.00 440.99 459.49 459.81 0.001074 4.64 3084.02 621.54 023 DC-1 30740 500-year 55500.00 440.99 468.90 489.19 0000437 3.99 1329052 1392.96 0.16 DC-1 30424 10-year 9700.00 440.99 457.29 457.51 0.000464 2.96 2820.33 442.28 0.15 DC-1 30424 50-year 12500.00 440.99 458.73 458.96 0.000426 2.98 3527.89 544.02 0.14 DC-1 30424 100-year 13500.00 440.99 459.37 459.81 0.000388 2.88 3898.48 587.35 0.13 DC-1 30424 500-year 55500.00 440.99 488.85 469.10 0.000230 2.74 15059.33 1378.33 0.11 DC-1 30257 10-year 9700.00 440.99 457.28 457.43 0.000348 2.60 3047.47 377.24 013 ® HEC-RAS Plan:PROP River:DentonCreek Reach'DC-1(Continued) Reach River Sta Profile 0 Total Min Ch EI W.S.Elev Crit W.S. E.G.Elov E.G.Slope Vel Chnl Flow Area Top Width Freude*CM (cls) (h) (6) (6) (9) (5/5) (Ws) (sq 8) (8) DC-1 30257 50-year 12500.00 440.99 458.68 458.89 0.000338 2.68 3830.32 442.30 0.13 DC-1 30257 100-year 13500.00 440.99 459.33 45955 0.000316 2.64 3927.02 475.42 0.12 DC-1 30257 500-year 55500.00 440.99 468.82 469.06 0.000217 2.95 15608.01 1480.55 0.11 DC-1 30037 10-year 9700.00 440.99 457.20 457.36 0.000324 2.39 3105.11 401.43 0.12 DC-1 30037 50-year 12500.00 440.99 458.63 458.83 0.000308 2.44 3690.70 421.91 0.12 DC-1 30037 100-year 13500.00 440.99 459.28 459.49 0.000288 2.41 3997.02 526.18 0.12 DC-1 30037 500-year 55500.00 440.99 468.81 469.00 0.000183 2.33 17391.70 1708.74 0.10 DC-1 29817 10-year 9700.00 440.99 457.10 457.29 0.000418 2.82 2849.98 388.18 0.14 DC-1 29817 50-year 12500.00 440.99 458.54 458.77 0.000388 2.83 3422.39 451.22 0.13 DC-1 29817 100-year 13500.00 440.99 459.19 459.42 0.000350 2.75 3746.46 545.48 0.13 DC-1 29817 500-year 55500.00 440.98 468.84 468.94 0.000122 2.22 22443.10 2269.70 0.08 DC-1 29558 10-year 9700.00 440.99 457.02 457.18 0.000388 2.63 3189.79 502.17 0.14 DC-1 29558 50-year 12500.00 440.99 458.47 458.66 0.000364 2.59 4015.80 745.78 0.13 DC-1 29558 100-year 13500.00 440.99 459.15 459.33 0.000315 2.48 4580.84 1006.14 0.12 DC-1 29558 500-year 55500.00 440.99 488.82 488.90 0.000109 2.10 24969.65 2344.33 0.08 DC-1 29330 10-year 9700.00 433.40 458.70 445.06 457.03 0.001155 4.64 2178.29 208.63 0.23 DC-1 29330 50-year 12500.00 433.40 458.07 448.60 458.49 0.001368 5.30 2471.09 218.98 0.26 DC-1 29330 100-year 13500.00 433.40 458.73 447.11 459.17 0.001368 5.42 2816.98 223.92 0.26 DC-1 29330 500-year 55500.00 433.40 467.61 459.79 468.73 0.002604 9.68 8561.20 1624.77 0.37 DC-1 29267 Denton Tap Road Bridge DC-1 29207 10-year 9700.00 433.40 458.60 456.93 0.001186 4.69 2157.04 207.74 0.24 DC-1 29207 50-year 12500.00 433.40 457.94 458.37 0.001413 5.37 2441.80 217.97 0.26 DC-1 29207 100-yer 13500.00 433.40 458.59 459.04 0.001413 5.48 2585.96 222.88 0.26 DC-1 29207 500-year 55500.00 433.40 467.38 468.60 0.002829 10.03 8194.59 1587.34 0.38 DC-1 28791 10-year 9700.00 440.01 458.55 444.70 458.63 0.000211 2.39 5405.84 934.52 0.11 DC-1 28791 50-year 12500.00 440.01 457.93 445.50 458.01 0.000214 254 6931.12 1192.59 0.11 DC-1 28791 100-year 13500.00 440.01 458.61 445.77 458.68 0.000187 2.45 7751.86 1204.80 0.10 DC-1 28791 500-year 55500.00 440.01 467.73 453.94 487.85 0.000191 3.28 21496.04 2187.81 0.11 DC-1 28586 10-year 9700.00 440.01 456.57 444.01 456.59 0.000058 1.40 8166.66 1128.98 0.07 DC-1 28586 50-year 12500.00 440.01 457.84 444.88 457.97 0.000061 1.51 9759.83 1185.68 0.07 DC-1 28586 100-year 13500.00 440.01 458.82 444.90 458.65 0.000057 1.50 10567.49 1189.18 0.07 DC-1 28586 500-year 55500.00 440.01 467.72 451.31 487.82 0.000111 2.71 22567.29 2122.78 0.10 C DC-1 28217 10-year 9700.00 440.01 456.54 445.27 456.57 0.000090 1.27 8113.87 848.55 0.07 DC-1 28217 50-year 12500.00 440.01 457.91 445.80 457.94 0.000102 1.42 9315.47 909.01 0.07 DC-1 28217 100-year 13500.00 440.01 458.59 445.98 458.62 0.000100 1.44 9975.10 1006.51 0.07 DC-1 28217 500-year 55500.00 440.01 487.63 451.07 487.78 0.000257 3.03 20692.08 2242.10 0.12 DC-1 27892 10-year 9700.00 440.01 456.49 445.82 458.53 0.000163 1.62 6023.87 725.38 0.09 DC-1 27892 50-year 12500.00 440.01 457.85 446.55 457.90 0.000183 1.80 7057.90 791.30 0.10 DC-1 27892 100-year 13500.00 440.01 458.53 446.79 458.58 0.000176 1.81 7605.26 816.27 0.10 DC-1 27892 500-year 55500.00 440.01 487.49 452.83 487.65 0.000359 3.41 17628.38 2417.16 0.14 0C-1 27602 10-year 14500.00 440.01 456.41 449.68 456.48 0.000126 1.46 7203.84 1007.93 0.09 DC-1 27602 50-year 19000.00 440.01 457.78 450.18 457.85 0.000131 1.56 8484.84 1055.91 0.09 DC-1 27602 100-year 21000.00 440.01 458.43 450.36 458.53 0.000137 1.63 9172.80 1149.30 0.09 DC-1 27602 500-year 55500.00 440.01 487.45 452.98 487.61 0.000086 1.76 19877.57 2127.10 0.07 DC-1 27298 10-year 14500.00 440.01 458.30 448.35 456.41 0.000584 2.17 5798.61 959.83 0.13 DC-1 27298 50-year 19000.00 440.01 457.64 449.69 457.77 0.000503 2.22 7038.93 1074.29 0.12 DC-1 27298 100year 21000.00 440.01 458.32 450.21 458.45 0.000459 2.20 7670.97 1137.94 0.12 DC-1 27298 500-year 55500.00 440.01 487.38 454.54 467.58 0.000200 2.14 17920.88 2125.36 0.08 DC-1 26970 10-year 14500.00 440.01 456.02 447.40 456.22 0.000501 3.89 4448.15 968.29 0.20 DC-1 26970 50-year 19000.00 440.01 457.42 448.54 457.61 0.000453 3.90 5840.63 1014.39 0.19 DC-1 26970 100-year 21000.00 440.01 458.13 449.00 458.31 0.000407 3.79 6568.99 1034.79 0.18 DC-1 26970 500year 55500.00 440.01 487.35 456.67 487.50 0.000145 3.14 17915.84 2237.43 0.12 DC-1 26688 10-year 14500.00 440.01 455.96 448.75 456.07 0.000422 2.83 5474.60 1008.06 0.16 DC-1 26688 50-year 19000.00 440.01 457.36 450.22 457.48 0.000364 2.73 8922.69 1058.65 0.15 DC-1 26688 100-year 21000.00 440.01 458.07 450.88 458.19 0.000325 2.82 7688.11 1086.41 0.14 DC-1 26688 500-year 55500.00 440.01 467.32 455.27 487.45 0.000135 2.24 19292.84 2344.80 0.09 DC-1 28383 10-year 14500.00 439.76 455.95 448.77 456.00 0.000076 1.25 8540.25 1101.53 0.07 DC-1 28383 50-year 19000.00 439.76 457.35 449.42 457.41 0.000077 1.31 10113.88 1145.08 0.07 DC-1 26383 100-year 21000.00 439.76 458.07 449.60 458.13 0.000074 1.30 10942.05 1194.99 0.07 DC-1 26383 500-year 55500.00 439.76 487.31 452.05 487.42 0.000051 1.40 23033.53 2104.39 0.06 DC-1 26087 10-year 14500.00 439.76 455.93 448.55 455.98 0.000072 0.91 9404.14 1218.75 0.05 DC-1 26087 50-year 19000.00 439.76 457.33 448.98 457.39 0.000072 0.93 11147.13 1268.87 0.05 DC-1 26087 100-year 21000.00 439.76 458.05 449.32 458.11 0.000069 0.93 12063.05 1291.13 0.05 DC-1 26087 500-year 55500.00 439.76 467.31 451.77 487.40 0.000045 1.11 25057.47 2288.39 0.04 DC-1 25797 10-year 14500.00 439.76 455.92 448.52 455.95 0.000068 0.87 10625.17 1318.80 0.05 DC-1 25797 50-year 19000.00 439.76 457.32 449.04 457.38 0.000069 0.90 12507.21 1366.50 0.05 DC-1 25797 100-year 21000.00 438.76 458.04 449.19 458.08 0.000087 0.89 13495.23 1392.28 0.05 DC-1 25797 500-year 55500.00 439.76 487.31 451.19 467.38 0.000049 1.09 27418.18 2513.89 0.04 CHEC-RAS Plan:PROP River.DentonCreek Reach:DC-1(Continued) Reach Reser Sta Profile a Total Min Ch El W.S.Elev Crit W.S. E.G.Elev E.G.Slope Vel Chnl Flow Area Top Width Fronde 8 Chi W) (8) (6) (8) (6) (88t) (By) (milt) (8) DC-1 25499 10-year 14500.00 439.76 455.88 448.69 455.92 0.000102 1.45 9259.12 1383.39 0.08 DC-1 25499 50-year 19000.00 439.76 457.29 449.30 457.33 0.000094 1.47 11232.01 1438.18 0.08 DC-1 25499 100-year 21000.00 439.76 458.01 449.47 458.06 0.000087 1.45 12291.34 1503.03 0.08 DC-1 25499 500-year 55500.00 439.76 46729 452.00 467.36 0.000049 1.30 28105.96 2587.99 0.06 DC-1 25168 10-year 14500.00 439.76 455.84 447.65 455.88 0.000148 1.74 8588.38 1666.79 0.12 DC-1 25168 50-year 19000.00 439.76 457.25 450.24 457.30 0.000123 1.61 10963.10 1890.35 0.10 DC-1 25168 100-year 21000.00 439.78 457.98 450.59 458.02 0.000109 1.53 12191.54 1702.08 009 DC-1 25188 500-year 55500.00 43976 467.28 453.90 467.34 0.000051 1.34 28888.81 2722.46 0.06 DC-1 24819 10-year 14500.00 439.76 455.74 448.92 455.81 0000303 213 7051.48 1422.91 0.12 DC-1 24819 50-year 19000.00 439.76 457.17 450.28 457.24 0.000234 1.96 9119.32 1468.33 0.10 DC-1 24819 100-year 21000.00 439.76 457.90 450.86 457.97 0.000200 1.86 10204.56 1498.43 0.09 DC-1 24819 500-year 55500.00 439.76 467.24 454.31 487.32 0.000073 1.48 25576.28 224296 0.08 DC-1 24519 1O0.year 14500.00 439.73 455.75 448.32 455.78 0.000026 0.75 11693.88 1277.30 0.04 DC-1 24519 50-year 19000.00 439.73 457.18 446.66 457.21 0.000029 0.83 13393.52 137444 0.04 DC-1 24519 100-year 21000.00 439.73 457.91 448.83 457.94 0.000030 0.88 14336.25 1531.14 0.05 DC-1 24519 500-year 55500.00 439.73 46723 449.24 487.31 0.000028 1.06 28284.40 2331.09 0.04 DC-1 24099 10-year 14500.00 439.76 455.75 448.22 455.77 0.000018 0.76 12921.11 1241.47 0.04 DC-1 24099 50-year 19000.00 439.76 457.17 446.54 457.20 0.000021 0.86 14729.20 1317.92 0.04 DC-1 24099 100-year 21000.00 439.76 457.90 448.67 457.93 0.000021 0.90 15713.52 1408.68 0.04 DC-1 24099 500-year 55500.00 439.76 487.23 448.71 467.29 0.000022 1.28 28932.59 2317.86 0.05 DC-1 23953 10-year 14500.00 437.50 455.71 448.57 455.76 0.000047 1.43 8141.88 1231.99 0.07 DC-1 23953 50-year 19000.00 437.50 457.12 447.01 457.19 0.000054 1.62 9294.26 1352.28 0.07 DC-1 23953 100-year 21000.00 437.50 457.85 447.20 457.92 0.000054 1.68 9937.09 1412.70 0.07 DC-1 23953 500-year 55500.00 437.50 467,13 450.02 487.28 0.000060 2.39 18357.30 2280.65 0.08 DC-1 23930 Bridge DC-1 23906 10-year 14500.00 437.50 455.68 448.80 455.75 0.000065 2.18 6682.19 1252.48 0.10 DC-1 23906 50-year 19000.00 437.50 457.09 447.38 457,18 0.000075 2.48 7679.11 1354.84 0.11 DC-1 23908 100-year 21000.00 437.50 457.81 447.60 457.91 0.000076 2.57 8212.74 1413.58 0.11 DC-1 23906 500-year 55500.00 437.50 467.01 45085 487.22 0.000084 3.62 15189.18 2303.76 0.12 DC-1 23802 10-year 14500.00 439.76 455.55 447.23 455.73 0.000242 2.76 4484.24 1193.52 0.14 DC-1 23802 50-year 19000.00 439.76 458.92 447.98 457.16 0.000271 3.11 5125.24 1264.65 0.15 DC-1 23802 100-year 21000.00 439.76 457.84 448.34 457.89 0.000268 3.21 5513.56 1334.91 0.15 C DC-1 23802 500-year 439,76 466.74 453.38 467.19 0.000264 4.39 10747.92 2529.96 0.16 DC-1 23506 10-year15000.00 439.76 454.90 447.92 455.54 0001362 8.48 2346.45 252.44 0.32 DC-1 23506 50-year 19000.00 439.76 458.09 449.03 456.94 0.001598 7.45 2634.69 408.54 0.35 DC-1 23506 100-year 21000.00 439.76 458.73 449.55 457.66 0.001661 7.82 2813.21 658.54 0.36 DC-1 23506 500-year 55500.00 439.76 464.92 45720 486.87 0.002080 11.76 5514.85 2705.89 0.43 DC-1 23229 10-year 15000.00 439.78 454.87 447.02 455.17 0.001056 5.73 2843.15 220.22 0.28 DC-1 23229 5O-year 19000.00 439.76 455.82 448.08 456.49 0.001263 6.63 2909.32 272.21 0.31 DC-1 23229 100-year 21000.00 43976 458.45 448.57 45720 0.001324 6.98 3074.34 42984 0.32 DC-1 23229 500-year 55500.00 439.76 464.57 455.29 466.26 0.001766 10.82 5777.50 2909.99 0.40 DC-1 22655 10-year 15000.00 438.24 454.39 446.42 451.64 0.000681 4.30 3888.26 437.95 0.22 DC-1 22655 50-year 19000.00 438.24 455.53 447.39 455.84 0.000801 4.87 4315.39 576.97 0.25 DC-1 22655 100-year 21000.00 438.24 456.16 447.95 456.51 0.000827 5.11 4585.00 754.47 0.25 DC-1 22655 500-year 55500.00 438.24 484.72 453.00 465.32 0.000799 7.03 9655.77 2886.35 0.27 DC-1 22211 10-year 15000.00 435.00 454.17 443.93 454.41 0.000615 4.23 3825.66 312.94 0.21 DC-1 22211 50-year 19000.00 435.00 455.24 445.05 455.57 0.000763 4.95 4163.08 358.27 0.24 DC-1 22211 100-year 21000.00 435.00 455.85 445.52 456.23 0.000808 5.23 4358.27 590.90 0.25 DC-1 22211 500-year 55500.00 435.00 484.22 451.81 464.99 0.001055 8.00 8506.98 2610.62 0.30 DC-1 22146 MacArthur Bailey Bridge DC-1 22080 10-year 15000.00 435.00 454.11 443.93 454.36 0.000624 4.25 3808.39 31269 0.22 DC-1 22080 50-year 19000.00 435.00 455.16 445.05 455.50 0.000776 4.97 4140.20 316.91 0.24 DC-1 22080 100-year 21000.00 435.00 455.69 445.52 456.07 0.000839 5.29 4305.73 542.50 0.25 DC-1 22080 500-year 55500.00 435.00 481.91 451.61 463.04 0.001692 9.41 6987.89 2562.89 0.37 DC-1 21798 10-year 15000.00 438.24 453.81 446.04 454.14 0.000808 4.98 3441.08 801.32 0.25 DC-1 21798 50-year 19000.00 438.24 454.78 447.00 455.23 0.000995 5.82 3893.07 1227.18 0.28 DC-1 21798 100-year 21000.00 438.24 455.27 447.44 455.78 0.001063 8.16 4140.49 1591.88 0.29 . DC-1 21798 500-year 55500.00 438.24 481.51 453.53 462.56 0.001552 9.53 8013.16 2489.13 0.37 DC-1 21558 10-year 15000.00 438.24 453.68 445.38 453.94 0.000660 4.49 3782.46 874.62 0.23 DC-1 21558 50-year 18000.00 438.24 454.63 446.25 454.98 0.000799 5.19 4177.02 1285.97 0.25 DC-1 21558 100-year 21000.00 438.24 455.12 448.67 455.51 0.000850 5.48 4393.61 1438.63 0.26 DC-1 21558 500-year 55500.00 438.24 481.13 452.09 482.18 0.001482 9.21 7151.92 2009.13 0.37 DC-1 21354 10-year 15000.00 438.24 453.53 445.14 453.79 0.000639 4.47 3742.97 704.58 0.23 DC-1 21354 50-year 19000.00 438.24 454.45 446.07 454.80 0.000790 5.18 4202.90 1071.69 0.26 DC-1 21354 100-year 21000.00 438.24 454.93 448.49 455.32 0.000845 5.43 4469.69 1335.76 0.27 DC-1 21354 500-year 55500.00 438.24 460.90 452.15 481.80 0.001438 8.64 8208.71 1672.54 0.36 C DC-1 21059 10-year 15000.00 438.24 453.18 445.64 453.52 0.001383 4.61 3208.67 398.49 0.24 DC-1 21059 50-year19000.00 438.24 453.98 448.54 454.45 0001783 5.42 3463.45 757.43 0.27 MEV ® HEC-RAS Plan:PROP River:DentonCreek Reach:DC-1(Continued) Reach River Sta Profile O Total Min Ch El W.S.Elan Crit W.S. E.G.Elan E.G.Slope Vel Chnl Flow Area Top Width Fronde 8 Chl (Fre) (8) (6) (6) (6) (MB) (IVs) (eV 8) (6) DC-1 21059 100-year 21000.00 438.24 454.40 448.98 454.94 0.001910 5.77 3605.45 998.76 0.28 DC-1 21059 500-year 55500.00 438.24 459.45 452.59 481.06 0.003841 10.19 5961.88 1543.93 0.42 DC-1 20616 10-year 15000.00 438.24 453.06 443.42 453.20 0.000320 2.98 5054.67 541.39 0.16 DC-1 20616 50-year 19000.00 438.24 453.84 444.16 454.03 0.000415 3.49 5526.87 75491 0.18 DC-1 20616 100-year 21000.00 43824 454.27 444.52 454.48 0.000454 3.71 5820.66 944.66 0.19 DC-1 20616 500-year 55500.00 438.24 459.34 449.19 459.98 0.001026 6.62 9433.39 1668.21 0.29 DC-1 20314 10-year 15000.00 438.24 45273 444.58 453.04 0.000735 4.47 3430.33 412.41 0.22 DC-1 20314 50-year 19000.00 438.24 453.39 445.44 453.82 0.000986 5.34 3708.85 435.55 0.25 DC-1 20314 100-year 21000.00 438.24 453.74 445.86 454.24 0.001094 5.72 3866.73 446.42 0.27 DC-1 20314 500-year 55500.00 438.24 457.55 451.46 459.37 0.003011 11.08 6038.85 1421.90 0.48 DC-1 20054 10-year 15000.00 438.24 452.70 443.45 452.85 0.000424 3.08 4846.23 411.18 0.15 DC-1 20054 50-year 19000.00 438.24 453.35 444.19 453.56 0.000582 3.69 5119.01 428.07 0.18 DC-1 20054 100-year 21000.00 438.24 453.71 444.53 453.95 0.000647 3.96 5273.97 436.31 0.19 DC-1 20054 500-year 55500.00 438.24 457.59 448.97 458.51 0.001788 7.75 7485.18 1311.91 0.33 DC-1 19742 10-year 15000.00 431.21 452.61 441.86 452.73 0.000290 2.99 5351.22 458.68 0.14 DC-1 19742 50-year 18000.00 431.21 453.22 44264 453.41 0.000399 3.60 564321 490.65 0.17 DC-1 19742 100-year 21000.00 431.21 453.57 443.01 453.78 0.000449 3.86 5812.61 494.44 0.18 DC-1 19742 500-year 55500.00 431.21 457.14 447.91 458.00 0.001435 7.80 7694.23 720.55 0.32 DC-1 19421 10-year 15000.00 429.83 452.45 441.35 452.61 0.000490 3.29 4670.68 490.74 0.15 DC-1 19421 50-year 19000.00 429.83 453.01 442.31 453.24 0.000668 3.93 4949.79 508.78 0.18 DC-1 19421 100-year 21000.00 429.83 453.33 442.85 453.80 0.000744 4.21 5113.23 515.48 0.19 DC-1 19421 500-year 55500.00 429.83 456.32 448.80 457.41 0.002441 8.55 6767.09 983.77 0.35 DC-1 19071 10-year 15000.00 430.45 452.48 440.92 452.51 0.000122 1.95 8153.92 1011.32 0.09 DC-1 19071 50-year 19000.00 430.45 453.03 441.78 453.10 0.000161 2.28 8734.90 1025.24 0.11 DC-1 19071 100-year 21000.00 430.45 453.35 442.16 453.44 0.000176 2.42 9070.64 1027.51 0.11 DC-1 19071 500-year 55500.00 430.45 456.58 448.64 456.89 0.000473 4.43 12465.51 1352.59 0.18 DC-1 18826 10-year 15500.00 430.03 452.38 440.84 452.47 0.000194 2.62 7335.36 1162.97 0.12 DC-1 18826 50-year 20000.00 430.03 452.93 441.77 453.05 0.000269 3.14 7993.55 1251.40 0.15 DC-1 18828 100-year 22000.00 430.03 453.25 442.17 453.38 0.000288 3.29 8397.39 129723 0.15 DC-1 18826 500-year 55500.00 430.03 458.42 447,90 458.76 0.000624 5.36 12410.92 1611.90 0.23 DC-1 18592 10-year 15500.00 430.43 452.37 440.15 452.42 0.000141 1.91 8983.04 1632.69 0.09 DC-1 18592 50-year 20000.00 430.43 452.91 441.09 452.98 0.000194 2.29 9698.27 1705.34 0.10 C DC-1 18592 100-year 22000.00 430.43 453.23 441.46 453.31 0.000209 2.41 10143.13 1749.64 0.11 DC-1 18592 500-year 55500.00 430.43 458.37 448.43 456.60 0.000482 4.15 15167.47 2315.00 0.17 DC-1 18335 10-year 15500.00 430.13 452.34 440.39 452.38 0.000118 1.93 10909.37 2137.42 0.09 DC-1 18335 50-year 20000.00 430.13 452.87 441.30 452.93 0.000153 2.27 11932.46 2244.47 0.11 DC-1 18335 100-year 22000.00 430.13 453.19 441.70 453.25 0.000161 236 12555.16 2295.01 0.11 DC-1 18335 500-year 55500.00 430.13 456.32 446.84 458.47 0.000324 3.74 18665.08 3045.19 0.16 DC-1 18114 10-year 15500.00 430.29 452.35 440.20 452.36 0.000044 1.09 15967.99 2502.60 0.05 DC-1 18114 50-year 20000.00 430.29 452.88 441.11 452.90 0.000080 1.30 16971.22 2586.23 0.06 DC-1 18114 100-year 22000.00 430.29 453.20 441.52 453.22 0.000065 1,37 17580.97 2617.90 0.07 DC-1 18114 500-year 55500.00 430.29 456.31 446.89 458.40 0.000182 2.45 23564.15 3246.21 0.11 DC-1 18045 Let Strutt DC-1 17892 10-year 15500.00 430.63 452.27 441.21 452.34 0.000229 2.43 11504.98 2248.50 0.11 DC-1 17892 50-year 20000.00 430.63 452.77 442.13 452.86 0.000317 2.93 12366.47 2344.33 0.14 DC-1 17892 100-year 22000.00 430.63 453.08 442.51 453.18 0.000343 3.09 12906.90 2395.07 0.14 DC-1 17892 500-year 55500.00 430.63 456.01 449.26 456.31 0.000854 5.51 18086.09 2979.05 0.23 DC-1 17828 10-year 15074.16 429.13 452.15 447.99 452.25 0.000463 2.96 6358.34 1354.69 0.15 DC-1 17026 50-year 19215.88 429.13 452.82 448.63 452.74 0.000576 3.39 6929.48 1373.74 0.17 DC-1 17626 100-year 21142.04 429.13 452.92 448.83 453.05 0.000592 3.49 7301.49 1390.70 0.17 DC-1 17826 500-year 51496.23 429.13 455.67 451.08 458.03 0.001030 5.22 10741.78 1914.69 0.23 DC-1 17235 10-year 12236.68 431.73 451.46 446.19 451.84 0.002018 5.69 2776.66 727.34 031 DC-1 17235 50-year 14877.99 431.73 451.80 447.45 452.25 0.002329 6.24 3028.30 751.36 0.33 DC-1 17235 100-year 18267.49 431.73 452.06 448.12 452.55 0.002434 8.48 3222.31 765.51 0.34 DC-1 17235 500-year 36511.86 431.73 454.20 452.41 455.16 0.003875 9.17 4882.96 975.98 0.44 DC-1 16726 10-year 9685.81 430.68 451.32 451.38 0.000407 2.69 5777.56 1060.71 0.14 DC-1 16726 50-year 11068.15 430.68 451.83 451.71 0.000482 2.98 6116.33 1074.46 0.15 DC-1 16726 100-year 12536.99 430.68 451.86 451.96 0.000557 3.25 6365.65 1075.73 0.16 DC-1 16726 500-year 27269.75 430.68 453.85 454.08 0001182 5.22 8542.23 1185.33 0.24 DC-1 16294 10-year 8990.35 430.33 450.88 451.11 0.001739 4.47 3276.27 1043.18 0.29 DC-1 18294 50-year 10091.89 430.33 451.17 451.40 0.001838 4.68 3572.74 1052.19 0.30 DC-1 16294 100-year 11281.34 430.33 451.34 451.61 0.002065 4.97 3756.55 1052.89 0.32 DC-1 16294 500-year 22899.35 430.33 452.97 453.44 0.003518 6.96 5484.31 1059.34 0.41 DC-1 15903 10-year 7661.33 425.52 450.51 450.63 0.000831 3.35 3788.76 1016.33 0.19 DC-1 15903 50-year 8342.84 425.52 450.79 450.91 0.000852 3.42 4071.05 106270 0.19 DC-1 15903 100-year 9330.10 425.52 450.90 451.04 0.001004 3.72 4189.97 1077.47 0.21 DC-1 15903 500-year 17983.89 425.52 452.15 452.43 0.001934 5.44 5728.96 1297.29 0.29 DC-1 15238 10-year 7255.55 429.73 450.22 450.29 0.000608 2.76 5046.66 1887.25 0.18 + rr■Irr■rI■ ® HEC-RAS Plan:PROP River:DentonCreek Reach:DC-1(Continued) Roach River Sta Profile O Total MM Ch EI W.S.Elev Cr8 W.S. E.O.Elev E.G.Slope Vel Chnl Flow Area Top Width Froude 1 CM (an) (It) (ft) (It) (ft) (816) (fih) f9R fit (It) DC-1 15238 50-year 7835.05 429.73 450.51 450.57 0.000593 2.77 5550.76 1931.69 0.17 DC-1 15238 100-year 8662.75 429.73 450.57 450.65 0.000693 3.00 5669.41 1934.75 0.18 DC-1 15238 500-year 18078.34 429.73 451.61 451.74 0.001227 4.19 7565.24 1991.95 0.25 DC-1 14819 10-year 7164.37 429.00 450.10 450.14 0.000370 2.24 6186.95 1877.28 0.14 DC-1 14819 50-year 7736.77 429.00 450.39 450.43 0.000361 2.23 6716.80 2035.68 0.14 DC-1 14819 100-year 8415.23 429.00 450.44 450.48 0.000414 2.39 6810.65 2048.71 0.15 DC-1 14819 500-year 14939.93 429.00 451.39 451.46 0.000726 3.24 8875.37 2104.03 0.19 DC-1 14425 10-year 7107.33 429.20 450.04 450.05 0.000142 1.47 8812.93 2052.87 0.08 DC-1 14425 50-year 7681.14 429.20 450.33 450.34 0.000140 1.49 9385.78 2084.57 0.08 DC-1 14425 100-year 8200.54 429.20 450.37 450.38 0.000158 1.57 9467.89 2087.36 0.08 DC-1 14425 500-year 13557.69 429.20 451.27 451.30 0.000263 2.15 11260.80 2122.96 0.11 DC-1 13768 10-year 7106.63 431.83 449.97 449.98 0.000135 1.52 10047.14 2405.69 0.08 DC-1 13768 50-year 7680.98 431.63 450.26 450.27 0.000135 1.54 10748.13 2426.19 0.08 DC-1 13768 100-year 8175.79 431.63 450.29 450.31 0.000151 1.62 10827.45 2427.47 0.08 DC-1 13788 500-year 12483.08 431.63 451.15 451.17 0.000225 2.08 12941.35 2527.93 0.10 DC-1 13144 10-year 6985.96 430.19 449.92 449.93 0.000110 1.39 11093.01 2436.01 0.07 DC-1 13144 50-year 7553.38 430.19 450.20 450.22 0.000120 1.47 11800.93 2539.46 0.08 DC-1 13144 100-year 7845.04 430.19 450.23 450.25 0.000127 1.52 11875.96 2540.39 0.08 DC-1 13144 500-year 10985.71 430.19 451.08 451.09 0.000153 1.74 14030.16 2609.75 0.09 DC-1 12561 10-year 6899.61 428.63 449.88 449.89 0.000093 1.42 10114.17 2136.96 0.07 DC-1 12551 50-year 7470.56 428.83 450.16 450.18 0.000094 1.45 10715.53 2152.87 0.07 DC-1 12551 100-year 7572.10 428.63 450.19 450.20 0.000095 1.48 1077641 2154.69 0.07 DC-1 12551 500-year 9711.68 428.63 451.03 451.04 0.000106 1.80 12570.70 2194.43 0.07 DC-1 11777 10-year 8741.39 430.59 449.70 449.79 0.000378 2.92 5413.43 1278.97 0.14 DC-1 11777 50-year 7275.88 430.59 449.99 450.07 0.000385 2.99 5775.93 1276.98 0.14 DC-1 11777 100-year 7331.27 430.59 450.02 450.10 0.000385 2.99 5811.98 1278.99 0.14 DC-1 11777 500-year 9061.39 430.59 450.84 450.93 0.000405 3.19 6871.37 1277.01 0.14 DC-1 11175 10-year 6741.39 423.24 449.50 449.57 0.000333 2.58 513124 1050.55 0.12 DC-1 11175 50-year 7275.88 423.24 449.78 449.85 0.000342 2.63 5424.56 1051.53 0.12 DC-1 11175 100-year 7331.27 423.24 449.81 449.88 0.000343 2.64 5453.70 1051.62 0.13 DC-1 11175 500-year 9061.39 423.24 450.63 450.70 0.000369 2.84 6312.03 1054.74 0.13 DC-1 10496 10-year 6741.39 428.52 449.27 449.34 0.000444 2.95 5212.19 1245.62 0.15 CDC-1 10496 50-year 7275.88 428.52 449.55 449.62 0.000443 2.99 5562.03 1249.13 0.15 DC-1 10498 100-year 7331.27 428.52 449.57 449.65 0.000443 2.89 5596.72 1249.48 0.15 DC-1 10496 500-year 9061.39 428.52 450.39 450.47 0.000443 3.12 6620.98 1259.63 0.15 DC-1 9967 10-year 6741.39 430.68 448.88 449.03 0.000796 3.93 3672.22 1031.12 0.19 DC-1 9967 50-year 7275.88 430.68 449.16 449.31 0.000790 3.97 3966.18 1035.91 0.19 DC-1 9967 100-year 7331.27 430.68 449.19 449.34 0000789 3.97 3995.17 1038.36 0.19 DC-1 9967 500-year 9061.39 430.68 450.01 450.16 0.000790 4.14 4854.91 1088.46 0.19 DC-1 9415 10-year 8741.39 429.06 448.70 448.78 0.000316 2.44 6168.64 1401.03 0.13 DC-1 9415 50-year 7275.88 429.06 448.98 449.05 0.000324 2.50 8559.72 1404.81 0.13 DC-1 9415 100-year 7331.27 429.06 449.00 449.07 0.000325 2.51 6598.35 1405.18 0.13 DC-1 9415 500-year 9061.39 429.06 449.81 449.89 0.000352 2.70 7745.54 1473.76 0.14 DC-1 8810 10-year 6741.39 427.41 448.61 448.63 0.000191 1.77 9584.22 1671.31 0.09 DC-1 8810 50-year 7275.88 427.41 448.88 448.91 0.000197 1.83 10052.19 1704.30 0.10 DC-1 8810 100-year 7331.27 427.41 448.91 448.94 0.000197 1.83 10098.74 1712.05 0.10 DC-1 8810 500-year 9061.39 427.41 449.71 449.74 0.000216 1.99 11487.47 1712.05 0.10 DC-1 8225 10-year 6741.39 431.75 448.41 448.49 0.000491 3.16 8421.17 1472.33 0.15 DC-1 8225 50-year 7275.88 431.75 448.88 448.77 0.000495 3.22 6829.65 1477.55 0.15 DC-1 8225 100-year 7331.27 431.75 448.71 448.90 0.000498 3.22 8869.56 1478.08 0.15 DC-1 8225 500-year 9061.39 431.75 449.50 449.59 0.000514 3.41 8049.15 1496.94 0.16 DC-1 7315 10-year 8741.39 425.14 447.72 447.93 0.000898 3.98 2809.10 1073.93 0.19 DC-1 7315 50-year 7275.88 425.14 447.97 448.20 0.000939 4.12 3091.58 1121.53 0.20 DC-1 7315 100-year 7331.27 425.14 448.00 448.23 0.000942 4.14 3120.77 1122.79 0.20 DC-1 7315 600-year 9061.39 425.14 448.79 449.03 0.000982 4.39 4052.19 1214.45 0.20 DC-1 4182 10-year 6741.39 427.29 446.67 448.72 0.000321 2.27 4758.91 1185.70 0.12 DC-1 4182 50-year 7275.88 427.29 448.98 447.02 0.000303 2.24 5124.10 1188.17 0.12 DC-1 4162 100-year 7331.27 427.29 447.01 447.05 0.000302 2.24 5161.31 1188.42 0.12 DC-1 4182 500-year 9061.39 427.29 447.94 447.98 0.000263 2.19 6270.18 1216.57 0.11 DC-1 3884 10-year 6741.39 427.63 448.58 446.64 0.000349 2.69 5172.13 1333.93 0.13 DC-1 3884 50-year 7275.88 427.83 448.90 448.96 0.000335 2.88 5591.37 1339.57 0.13 DC-1 3884 100-year 7331.27 427.63 448.93 448.99 0.000334 2.87 5834.08 1340.07 0.13 DC-1 3884 500-year 9081.39 427.83 447.87 447.92 0.000300 2.85 6908.53 1388.38 0.12 DC-1 3196 10-year 6741.39 426.48 448.42 448.47 0.000380 2.41 6255.59 1838.69 0.13 DC-1 3196 50-year 7275.88 428.48 446.75 446.80 0.000349 2.34 6862.79 1850.18 0.13 DC-1 3196 100-year 7331.27 426.48 448.79 446.83 0.000348 2.33 6924.28 1850.33 0.13 DC-1 3198 500-year 9081.39 426.48 447.76 447.79 0.000282 2.18 8735.91 1870.30 0.11 DC-1 2572 10-year 8741.39 420.48 446.28 448.35 0.000180 2.33 5569.34 1188.32 0.10 DC-1 2572 50-year 7275.88 420.48 448.61 448.68 0.000184 2.39 5954.17 1179.02 0.10 0 HEC-RAS Plan:PROP River:DentonCreek Reach:DC-1(Continued) Reach River Sta Profile O Total Min Ch EI W.S.Bev Cr6 W.S. E.G.Bev E.G.Slope Vel Chnl Flow Ares Top Width Froude•CAI Or.) (6) (6) (9) (9) (Mt) (95) (e9 6) (6) DC-1 2572 100-year 733127 42048 446.64 446.71 0000184 239 5993.34 1180.65 0.10 DC-1 2572 500-year 9061.39 420.48 447.62 447.69 0.000193 2.54 7221.47 1340.82 0.10 DC-1 2112 10-year 6741.39 426.01 448.07 448.22 0.000601 3.66 4492.14 1248.22 0.17 DC-1 2112 50-year 7275.88 426.01 446.41 446.55 0.000580 3.65 4913.82 124822 0.17 DC-1 2112 100-year 7331.27 426.01 446.44 446.58 0.000578 3.65 4956.41 1248.22 0.17 DC-1 2112 500-year 9061.39 428.01 447.44 447.56 0.000526 3.64 6198.61 1248.22 0.16 DC-1 1623 10-year 6741.39 425.47 445.87 445.97 0.000424 2.93 4715.86 1051.09 0.15 DC-1 1623 50-year 7275.88 425.47 446.21 448.31 0.000420 2.97 5073.16 1056.13 0.15 DC-1 1623 100-year 7331.27 425.47 446.24 446.34 0.000420 2.98 5109.36 1056.64 0.15 DC-1 1623 500-year 9061.39 425.47 447.24 447.34 0.000408 3.09 6170.53 106211 0.15 DC-1 1194 10-year 6741.39 422.81 445.55 445.73 0.000701 3.74 3133.62 685.97 0.18 DC-1 1194 50-year 7275.88 422.81 445.89 44607 0.000700 3.80 3366.31 685.97 0.18 DC-1 1194 100-year 7331.27 422.81 445.93 446.10 0.000899 3.81 3389.82 685.97 0.18 DC-1 1194 500-year 9061.39 422.81 448.93 447.11 0.000693 3.97 4075.82 685.57 0.18 DC-1 683 10-year 6741.39 422.75 445.40 445.45 0.000295 229 6172.15 1096.53 0.12 DC-1 683 50-year 7275.88 422.75 445.74 445.79 0.000292 2.32 6546.33 1096.53 0.12 DC-1 683 100-year 7331.27 422.75 445.78 445.83 0.000291 2.33 6584.15 1096.53 0.12 DC-1 683 500-year 9061.39 422.75 446.78 446.84 0.000286 2.44 7685.96 1096.53 0.12 DC-1 239 10-year 6741.39 423.81 445.18 435.02 445.27 0.000500 3.07 4424.48 798.50 0.16 DC-1 239 50-year 7275.88 423.81 445.51 435.39 445.61 0.000500 3.13 4697.06 798.50 0.18 DC-1 239 100-year 7331.27 423.81 445.54 435.43 445.84 0.000500 3.13 4724.60 798.50 0.16 DC-1 239 500-year 9061.39 423.81 446.54 436.56 446.65 0.000501 3.30 5526.46 798.50 0.16 C APPENDIX C FEMA MT-2 FORMS & ESA LETTER o Payment Information Form o MT-2 Form 1 — Overview and Concurrence o MT-2 Form 2 — Riverine Hydrology & Hydraulics o MT-2 Form 3 — Riverine Structures o ESA Compliance — Letter of No Effect FEDERAL EMERGENCY MANAGEMENT AGENCY PAYMENT INFORMATION FORM Community Name:City of Coppell Project Identifier: Denton Creek Pedestrian Bridge(@ Moore Rd.Lake) THIS FORM MUST BE MAILED,ALONG WITH THE APPROPRIATE FEE,TO THE ADDRESS BELOW OR FAXED TO THE FAX NUMBER BELOW. Please make check or money order payable to the National Flood Insurance Program. Type of Request: LOMC Clearinghouse ❑ MT-1 application847 South Pickett Street ❑■ MT-2 application} Alexandria,VA 22304-4605 Attn.: LOMC Manager FEMA Project Library ❑ EDR application 847 South Pickett Street Alexandria,VA 22304-4605 FAX(703)212-4090 Request No.(if known): Check No.: Amount: $4'400 ❑ INITIAL FEE* ❑■ FINAL FEE ❑ FEE BALANCE** ❑ MASTER CARD ❑ VISA ❑■ CHECK ❑ MONEY ORDER C *Note: Check only for EDR and/or Alluvial Fan requests(as appropriate). **Note:Check only if submitting a corrected fee for an ongoing request. COMPLETE THIS SECTION ONLY IF PAYING BY CREDIT CARD CARD NUMBER EXP. DATE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Month Year Date Signature NAME(AS IT APPEARS ON CARD): (please print or type) ADDRESS: (for your credit card receipt-please print or type) 0 DAYTIME PHONE: FEMA Form 81-107 Payment Information Form U.S.DEPARTMENT OF HOMELAND SECURITY FEDERAL EMERGENCY MANAGEMENT AGENCY O.M.B No.1660-0016 OVERVIEW & CONCURRENCE FORM 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.0§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 City of Katy TX 48473C 0005D 02/08/83 480287 Harris County TX 48201C 0220G 09/28/90 480180 City of Coppell TX 48113C 0155J 08/23/01 2. a.Flooding Source:Watters Branch b.Types of Flooding: 0 Riverine 0 Coastal 0 Shallow Flooding(e.g.,Zones AO and AH) 0 Alluvial fan 0 Lakes 0 Other (Attach Description) 3. Project Name/Identifier:Ridgeview Drive Extension(new road and bridge) 4. FEMA zone designations affected:AE (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) 0 Physical Change 0 Improved Methodology/Data 0 Regulatory Floodway Revision 0 Base Map Changes ❑Coastal Analysis ®Hydraulic Analysis 0 Hydrologic Analysis 0 Corrections ❑Weir-Dam Changes 0 Levee Certification 0 Alluvial Fan Analysis 0 Natural Changes ❑New Topographic Data 0 Other(Attach Description) Note: A photograph and narrative description of the area of concern is not required,but is very helpful during review. FEMA Form 086-0-27,(2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 1 of 3 b. The area of revision encompasses the following structures(check all that apply) Structures: 0 Channelization 0 Levee/Floodwall ®Bridge/Culvert 0 Dam 0 Fill 0 Other(Attach Description) 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: $4 400 0 No,Attach Explanation 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: John Elias,Park Operations Manager Company: City of Coppell Mailing Address: Daytime Telephone No.: 972-462-5115 Fax No.: 816 S.Coppell Rd.,Coppell,TX,75019 E-Mail Address: jelias@ci.coppell.tx.us 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: Mr.Ken Griffin,P.E.,CFM;Director of Engineering and Community Name: City of Coppell Public Works. Mailing Address: Daytime Telephone No.: 972-304-3686 Fax No.: 265 Parkway Blvd.,Coppell,TX,75019 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: Kyle Dykes,P.E.,CFM License No.: 99378 Expiration Date:03/2015 Company Name: Teague Nall and Perkins Telephone No.: 817-336-5773 Fax No.: 817-336-2813 Signature: / /Z(------7Date:j0 f 20/ E-Mail Address:kdykes@tnpinc.com FEMA Form 086-0-27,(2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 2 of 3 Ensure the forms that are appropriate to your revision request are included in your submittal. Form Name and(Number) Required if... �....... ....°F.r II ® Riverine Hydrology and Hydraulics Form(Form 2) New or revised discharges or water-surface elevations r y�* '/sll� ® Riverine Structures Form(Form 3) Channel is modified,addition/revision of bridge/culverts, j*' */ addition/revision of levee/floodwall,addition/revision of dam KYLE J. DYKES r ii . 99378 V.: ❑ Coastal Analysis Form(Form 4) New or revised coastal elevations i+o,,,., ,� •,.•�� ❑ Coastal Structures Form(Form 5) Addition/revision of coastal structure i11�\�N`N�� Seal(Optional) ❑ Alluvial Fan Flooding Form(Form 6) Flood control measures on alluvial fans FEMA Form 086-0-27,(2/2011) Previously FEMA Form 81-89 MT-2 Form 1 Page 3 of 3 U.S.DEPARTMENT OF HOMELAND SECURITY FEDERAL EMERGENCY MANAGEMENT AGENCY O.M.BNo.1660-0016 RIVERINE HYDROLOGY& HYDRAULICS FORM 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.0§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: Denton Creek 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 0 Improved data ❑ Alternative methodology 0 Proposed Conditions(CLOMR) 0 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) O Statistical Analysis of Gage Records 0 Precipitation/Runoff Model - Specify Model: ❑ Regional Regression Equations 0 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? 0 Yes 0 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 1 of 3 B. HYDRAULICS 1. Reach to be Revised Description Cross Section Water-Surface Elevations(ft.) Effective Proposed/Revised Downstream Limit* 810'U/S of MacArthur Blvd 23800 452.98 452.98 Upstream Limit* 3,840'U/S of MacArthur Blvd 26830 654.74 455.07 *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.4.0 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: Plan Name: File Name: Plan Name: DC_PED_BR.prj DCEXIST(.p04) DC_PED_BR.prj DentonFW.p03 NAVD 88 Corrected Effective Model* File Name: Plan Name: File Name: Plan Name: n/a n/a Existing or Pre-Project File Name: Plan Name: File Name: Plan Name: Conditions Model DC_PED_BR.prj REV_EX(p06) NAVD 88 Revised or Post-Project File Name: Plan Name: File Name: Plan Name: Conditions Model DC_PED_BR.prj DC_PROP(.p07) DC_PED_BR.prj FW PROP.p01 NAVD 88 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 ft ground survey(in project area)and 2 ft aerial topography(overbanks) Source: 1 ft -TNP survey(2013);2 ft—NCTCOG(2001) Date: Accuracy: 1 ft and 2 ft 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 2 of 3 D. COMMON REGULATORY REQUIREMENTS* 1. For LOMR/CLOMR requests,do Base Flood Elevations(BFEs)increase? ®Yes 0 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? 0 Yes 0 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? 0 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? 0 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). See attached Letter of No Effect,Appendix C 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 086-0-27A,(2/2011) Previously FEMA Form 81-89 MT-2 Form 2 Page 3 of 3 DEPARTMENT OF HOMELAND SECURITY O.M.B.NO. 1660-0016 FEDERAL EMERGENCY MANAGEMENT AGENCY Expires February 28,2014 RIVERINE STRUCTURES FORM 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.0§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: Denton Creek 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: Ridaeview Drive Bridge Type (check one): 0 Channelization ®Bridge/Culvert 0 Levee/Floodwall 0 Dam Location of Structure: at Ridgeview Drive Downstream Limit/Cross Section: 24585 d/s xs Upstream Limit/Cross Section:24700 u/s xs 2. Name of Structure: Type (check one): ❑Channelization 0 Bridge/Culvert 0 Levee/Floodwall 0 Dam Location of Structure: Downstream Limit/Cross Section: Upstream Limit/Cross Section: 3. Name of Structure: Type (check one) 0 Channelization 0 Bridge/Culvert 0 Levee/Floodwall 0 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 1 of 11 B. CHANNELIZATION Floo. . Source: Name of Stru re: 1. Hydraulic Cons -rations The channel was desi. -d to carry (cfs)and/or the -year flood. The design elevation in the .nnel is based on(check one): ❑ Subcritical flow \ Critical flow ❑ Supercritical flow 0 Energy grade line If there is the potential for a hydraulic ju : -t the following locations,check all that apply a.. attach an explanation of how the hydraulic jump is controlled without affecting the stabile of the channel. ❑ Inlet to channel 0 Outlet of channel 0 At D ..Structures 0 • ransitions ❑ Other locations(specify): 2. Channel Design Plans Attach the plans of the channelization certified by a re.'.ered professional e • eer,as described in the instructions. 3. Accessory Structures The channelization includes(check on- . ❑ Levees[Attach Section E(Le -/Floodwall)] 0 Drop structures 0 Superelevated s• ions ❑ Transitions in cross sec al geometry 0 Debris basin/detention basin [Attach Section D(Da :asin)] 0 Energy dissipator ❑ Weir 0 Other(Describe): 4. Sediment Tr- sport Considerations Are the • draulics of the channel affected by sediment transport? 0 Yes 0 No If -s,then fill out Section F(Sediment Transport)of Form 3. If No,then attach your explanation for why sediment transport was not c. idered. C. BRIDGE/CULVERT Flooding Source: Denton Creek Name of Structure: New Pedestrian Bridge(0 Moore Rd.Lakel 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 4.0 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(workmap) ® 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 0 Stream Invert Elevations—Upstream and Downstream 0 Cross-Section Locations(workmap) 4. Sediment Transport Considerations Are the hydraulics of the structure affected by sediment transport? 0 Yes ®No No change to channel. If Yes,then fill out Section F(Sediment Transport)of Form 3. If no,then attach an explanation. FEMA Form 086-0-27B,(2/2011) Previously FEMA Form 81-89B MT-2 Form 3 Page 2 of 11 Pg's 3-11 n/a i 1 aim integrated environmental solutions 16 April 2014 Mr. Kyle Dykes Teague Nall and Perkins 1100 Macon Street Fort Worth,Texas 761025 Re: Protected Species Habitat Assessment Andy Brown Park—the City of Coppell,Dallas County,Texas Dear Mr. Dykes, Integrated Environmental Solutions, LLC (IES) performed a protected species habitat assessment in Andy Brown Park, located in the City of Coppell, Dallas County, Texas (the "survey area"). This habitat assessment was preformed to satisfy Federal Emergency Management Agency (FEMA) requirements regarding the Endangered Species Act (ESA) (see Attachment A, Figures 1 and 2). The following report is a list of the federal protected species for Dallas County and their preferred habitats,a summary of the habitats present on the site,a description of the proposed action,and an evaluation of whether or not preferred habitat is present on the site, and whether or not the proposed action would affect listed species. INTRODUCTION Endangered Species Act The ESA of 1973 (Public Law[P.L.]93-205)and the amendments of 1988(P.L. 100-578)were enacted to provide a program of preservation for endangered and threatened species and to provide protection for ecosystems upon which these species depend for their survival. The ESA requires all federal agencies to implement protection programs for designated species and to use their authorities to further the purposes of the Act. Responsibility for the listing of an endangered or threatened species and for the development of recovery plans lies with the Secretary of Interior and Secretary of Commerce. The U.S. Fish and Wildlife Service (USFWS) is responsible for implementing the ESA within the United States. An endangered species is a species, which is in danger of extinction throughout all or a significant portion of its range. A threatened species is a species likely to become endangered within the near future throughout all or a significant portion of its range. Proposed species are those, which have been formally submitted to Congress for official listing as endangered or threatened. In addition,the USFWS has identified species which are candidates for possible addition to the list of Endangered and Threatened Wildlife and Plants (50 Code of Federal Regulations [CFR] Parts 17.11 and 17.12) under the ESA. The USFWS maintains a candidate list to: (1) provide advance knowledge of potential listings that could affect land planning decisions, (2) solicit input to identify candidates not requiring protection or additional species that may require protection under the ESA,and(3)solicit information needed to prioritize the order in which species will be proposed for listing. Candidate species have no legal protection under the ESA. Integrated Environmental Solutions, LLC. 2150 South Central Expressway,Suite 110 McKinney,Texas 75070 www.intenvsol.com totetti Telephone:972.562.7672 Facsimile:972.562.7673 Mr.Kyle Dykes Andy Brown Park-Protected Species Habitat Assessment 16 April 2014 Page 12 On August 28,2010 the FEMA issued a memo(Procedure Memorandum 64)detailing how all Conditional Letters of Map Change submittals after October 1, 2010 must show how the proposed action complies with the ESA. The map change request will be processed by FEMA,only after FEMA receives documentation from the requestor that they have demonstrated compliance with the ESA. The requestor may demonstrate ESA compliance by submitting to FEMA either an Incidental Take Permit,Incidental Take Statement,"not likely to adversely affect"determination from USFWS or an official letter from USFWS concurring that the project has"no effect"on listed species or critical habitat. As the USFWS does not typically write official letters for "no effect" on listed species, sufficient documentation must be provided to FEMA by the requestor supporting this conclusion. If the project is likely to cause jeopardy of a species' continued existence or adverse modification to designated critical habitat, according to the August 2010 memo, then FEMA shall refuse to review the map change request without prior project approval from USFWS. If a Federal entity is involved in a proposal or project for which a map change has been requested, then the applicant may coordinate with that agency to demonstrate to FEMA that Section 7 ESA compliance has been achieved through that other Federal agency. RESULTS Protected Species According to the USFWS, five species, the black-capped vireo (Vireo atricapilla), golden-cheeked warbler (Dendroica chrysoparia),piping plover(Charadrius melodus), interior least tern(Sterna antillarum athalassos),and whooping crane (Grus americana) are listed as federally protected (i.e., threatened or endangered) with the potential to occur within Dallas County (Attachment B,Table 1). The bald eagle was federally delisted as of 08 August 2007. However,it is being monitored by the USFWS for a period of five years and is still federally protected under the Bald and Golden Eagle Protection Act. No federally listed critical habitat for these species is located within Dallas County or within the vicinity of the survey area. The black-capped vireo is a small (12 centimeter [cm])songbird listed as endangered within Dallas County. Black- capped vireos are primarily olive with blackish wings and whitish underparts. Males have a distinct black head with white spectacles around the eyes. The black-capped vireo nest from March to late summer within oak- juniper woodlands. Shrubs with foliage to ground level and the required structure are the most important aspect for nesting habitat,as black-capped vireos will no longer nest within a mature tree. The golden-cheeked warbler is a small (12cm) songbird listed as endangered within Dallas County. Golden- cheeked warblers primarily have black upperparts, white underparts, and black and white streaked wings, with a bright yellow face. The golden-cheeked warbler nests from March to late summer within mature oak-juniper woodlands with closed canopies. Mature Ashe juniper(Juniperus ashei)trees with shredding bark are an essential component for nesting habitat as the shedding bark material is used to construct nests. The nesting range for the golden-cheeked warbler occurs entirely within Texas. The piping plover is a small (18cm) shorebird listed as threatened within Dallas County. Piping plovers are pale, sand colored throughout with black tails and black bands along the head and neck. Piping plovers are primarily found along open sandy areas near water, such as lakeside beaches and river sandbars, and would only be expected to occur within Dallas County as a migrant. The piping plover is a resident of the Texas coast from mid- July through April and breed along the gravel shores of the Great Lakes. The interior least tern is a small (20cm) shorebird listed as endangered within Dallas County. Interior least terns are primarily grey and white with black streaking on the head,forked tail and narrow pointed wings. The interior least tern nests along sand and gravel bars within braided streams and rivers, preferring open habitat and tending to avoid thick vegetation and narrow beaches. However, as less natural habitat is made available, it has been known to nest on man-made structures such as inland beaches, wastewater treatment plant roads, gravel mines, and industrial warehouse rooftops covered with gravel. When breeding, the interior least tern forages near the colony on small fish and crustaceans within shallow water areas of lakes,ponds,and rivers. The whooping crane is a large(1.5-meter[m]) crane listed as endangered within Dallas County but would only be expected to occur as a migrant. Whooping cranes are snowy white with black primary features along the wings and,a black mask around the bill on the side on the head. During migration,the whooping crane utilizes estuaries, Mr.Kyle Dykes Andy Brown Park-Protected Species Habitat Assessment 16 April 2014 Page/3 prairie marshes, savannah,grasslands,croplands,and pastures for feeding. They will also use large wetland areas associated with lakes for roosting and feeding. The whooping crane is a winter resident at Aransas National Wildlife Refuge,and the coastal marshes of Aransas,Calhoun, and Refugio counties, breeding at the Wood Buffalo National Park in northern Canada. Site Survey The survey area was evaluated by Mr.Shae Kipp of IES on 14 January 2014. This survey was designed to provide a habitat evaluation of the overall survey area with the primary focus on the plant community, but with a description of individual habitat characteristics within each plant community. The survey area was characterized as having two plant communities—the maintained grassland community and the forested riparian corridor community. The maintained grassland community was observed surrounding the large pond in the center of the survey area. The area is designated as a city park that is maintained by the City of Coppell. The vegetation observed in the maintained grassland community included Bermudagrass (Cynodon dactylon), King Ranch bluestem (Bothriochloa ischaemum), silver bluestem (Bothriochloa laguroides), meadow dropseed (Sporobolus compositus), heath aster (Aster ericoides), and giant ragweed in areas directly adjacent to Denton Creek. A similar, less frequently maintained grassland area was observed on the north bank of Denton Creek, which was part of a levy system for the creek. The forested riparian corridor community was observed only on the south bank of Denton Creek in relation to the survey area. The vegetation in the corridor was predominantly comprised of large, mature trees with a relatively dense understory leading to the top-of-bank of Denton Creek. The dominant species of vegetation in the forested riparian corridor community included poison ivy (Toxicodendron radicans), boxelder (Acer negundo), post oak (Quercus falcate),black willow(Salix nigra),sugarberry(Celtis laevigata),and greenbrier(Smilax bona-nox). CONCLUSIONS Preferred Habitat for Protected Species Attachment B,Table 1 provides a summary of the federally listed species that could potentially occur within Dallas County, as well as a brief description of their preferred habitat, whether this habitat is present within the survey area,and whether the proposed project would potentially affect the listed species. In regards to federally listed threatened and endangered species,the black-capped vireo,golden-cheeked warbler, piping plover, whooping crane and interior least tern were the only species listed for Dallas County. Suitable habitat for both the black-capped vireo and the golden-cheeked warbler includes "Oak-juniper woodlands." However, the woodlands of the survey area lacked both the open grassy spaces and the foliage to ground level required by the black-capped vireo,and the mature Ashe junipers required for the golden-cheeked warbler. In regards to the interior least tern, piping plover,and whooping crane it was determined that none of the habitats present would be suitable nesting,feeding or stopover migration habitats in the survey area. Proposed Project The proposed project will be a pedestrian bridge over Denton Creek with no disturbance to the creek itself, and the repair of the banks of the pond located in Andy Brown Park. Current development plans indicate that the level of the water within the pond will only be affected for a short period of time and will not be completely drained. Potential to Affect Protected Species As previously noted, preferred habitat for the black-capped vireo, golden-cheeked warbler, piping plover, whooping crane and interior least tern are not available within the survey area. As such, the proposed project is not expected to have any impacts on federally listed threatened or endangered species. Mr.Kyle Dykes Andy Brown Park-Protected Species Habitat Assessment 16 April 2014 Page/4 IES appreciates working with you and Teague Nall and Perkins, and if you have any comments, questions, or concerns,please do not hesitate to contact me at 972/562-7672(rreinecke@intenvsol.com). Sincerely, Integrated Environmental Solutions, LLC. Rudi Reinecke Vice President Attachments File ref04.080.027 C `12% Vista � z Ridge �- x Mall II \, x MallDr — y 121 I \\\ ;� Trinity Mills I I 4921 1.' It. ;. . .:,.,' Carrolltoon Dr • ''� j X26) Dallas OCoppell r`J v.",, �'r <//: County s C. Q) '3 I a. 121 ' - \r— <04. vista d Turnberry" "V' 1ADr 4 1 Ln re 03�.ao'� Vista Sz m. ' /"� N °� E peninsula Dr a��a N Ridge . r' ,. G � O 2 GtS` Cer' O o • a c •N �� ,�o� A Prince Park , c; Edward Ln -, ! � lco d co Il- i 1 ''— '4 .. .. °C% o • a c y;! ------- \ ,- Rockcrest Dry n1 A < 0'Na - C mal7 o to E O 9water °c O„ O,��rA ° Orhire r e a. F Brentwood cog cu Lyndsie Dr Phillips Dr d k. Dr Beau a) i O Lakeview Dr \, platch Trce Cribbs Dr O w Dr es •. _ y on < ' v� a Chaff t -00"Pr °n Dr! c io / w° PI seer` Hood Dr. a: r °a/a�P Cottonwood Andy -. I pe G<Qb o Branche Brown Johnson Dr" `m' gshf Or c r a u5trc Park Parkview PI ParK Ln Ha ''`,,,`: °rd pr v- on ,a Eteado.N �N F rr�sOn n 1� Harris F' M may �d •y._0 ° y c Or Greenway Dr F1i11 Gt 2 91 ias ° Mea N o Clayton -- A, y TCrosss o y ParK (.1 >, a aOkoOd 3 3 Plu oats Cir �� G�Oel � vosge Trl .• ° ,� 4h °o ' St .'. z 3ti Y rn io w„ a ate, Shorewood Dr ?VA > % fl ' Beechwood Ln .. o �� m C7 Meadowglen Cir Marines .c A r— aiG{ Firelight = Walnut Grove Ln Stringfellow Dr �Ma -a yr W ° ° b :::- G ° E Afar/ c. Cypress c�a coG a 3 o Way o w o0 .. ~de Lee Dr o .. as it Lockhaven Ct y t- ° e x N (n Ln N Or Park `�LT_ r-O°� Or Grace Ln ��! AlenDdale r WpOd�°or DTc ��a ValleyDr Pecan Hollow Dr �, e t ,0 O t.°'O Survey Area N Figure 1 4 General Location Map w,� E I S County: Dallas State: Texas )ate map created: 01/14/2014 1 inch = 1,250 feet Source: ESRI 10 Streetmap North America 0 750 1,500 3,000 mimi Feet sii. 1, fi,4 jL � T f #''''" k4r- 4t ilt ` t *r it,' * k pR 6 Ili t ,4. 41j *1. ' )11k. 41 401A ';4.4, - ilr IN jwir I 5 4: * a t 4 . „ 4 b } E v; 7 k3E . , , $41* "fin., Figure 2 Survey Area Aerial Photography of Survey Area N County: Dallas W--.60....--E State: Texas Date map created: 01/15/2014 Source: 2012 USDA FSA TOP 1 inch = 250 feet s Aerial Photography 0 200 400 800 �� Feet