July 12, 2018 Attn: Matt Siekielski NexBank SSB 2515 McKinney Ave, Ste 1100 Dallas, Texas 75201 Re: Flood Reclamation Feasibility Study - Limited Mr. Siekielski, We have completed a limited flood reclamation study and review of your ~4-acre development located on the west side of the intersection of Marvin D Love Freeway and W. Pentagon Parkway, Dallas, Texas. Our investigation, process, and findings for this high level preliminary review of the feasibility of being able to reclaim a portion of the property that falls within the 100-year flood limits of Five Mile Creek is summarized as follows; Investigation and background information gathering consisted of an initial request from FEMA for all historical and current flood study information, models, and analysis on record for this section of Five Mile Creek. Additional research was conducted on the FEMA GIS and Data Management Systems web sites. There is only historical data available for this area so the ability to reproduce existing flood conditions, at this point, is limited. Our preliminary processes involved reviewing the information and data collected during the investigation period and then building an existing conditions model within, FEMA approved flood modeling software, the HEC-RAS software package. The engineer then built an assumed area of reclamation (area of fill) and modeled the new 100-year flood limits. A direct comparison of the pre and post Base Flood Elevations (BFE) was conducted. While there are many considerations given to the overall unity, continuity, behavior, and hydrology of the flood way system this study focused only on evaluating the feasibility of reclaiming lands (on the subject property stated above) within the current FEMA 100-year flood zone. The Engineer finds that the property s BFE lies within an elevation of 510 to 511, with it being plausible to reclaim a portion of the property by designing a grading scheme that would maintain this BFE. A portion of the eastern part of the property could be raised to a minimum elevation of 513 feet. While it is feasible to file and follow the FEMA process for gaining approval for reclaiming the land, it is a process that will require time and funding to complete. If you have any questions or require additional information, please feel free to contact me. Sincerely, Garrett D. Keller, P.E. Matkin-Hoover Engineering & Surveying Project Manager CIVIL ENGINEERS SURVEYORS LAND PLANNERS CONSTRUCTION MANAGERS CONSULTANTS MATKIN HOOVER ENGINEERING & SURVEYING 8 SPENCER ROAD, SUITE 100 - BOERNE, TEXAS 78006 OFFICE (830) 249-0600 FAX (830) 249-0099 www.matkinhoover.com
Date: Jul 12, 2018, 4:43pm User ID: tlung LEGEND PROPERTY BOUNDARY BASE FLOOD ELEVATION (B.F.E.) SCALE: 1"=30' AREA OF PLAUSIBLE LAND RECLAMATION CREEK CREST LINE 0 0' 50 EXISTING 1' CONTOUR A PORTION OF THIS TRACT LIES WITHIN FLOOD HAZARD AREA "AE" AS DELINEATED ON THE FEMA FLOOD INSURANCE RATE MAP PANEL NO. 48113C0480K, FOR DALLAS COUNTY, EFFECTIVE JULY 7, 2014. NOTES: 1. PROPERTY LINES SHOWN ARE APPROXIMATE AND DO NOT REPRESENT AN ON THE GROUND SURVEY OF THE PROPERTY'S BOUNDARY LINES. 49 0' REVISIONS: ' 500 2. SITE PLAN IS CONCEPTUAL AND DOES NOT REPRESENT THE FINAL/APPROVED SITE IMPROVEMENTS. 3. B.F.E. AND FLOOD LIMITS ARE APPROXIMATE AND DO NOT REPRESENT A DETAILED FLOOD ANALYSIS STUDY. 4. GOVERNING AUTHORITY: FEMA, CITY OF DALLAS, TRINITY WATERSHED MANAGEMENT DEPARTMENT, FLOOD PLAIN AND ESCARPMENT ZONE REGULATIONS; ARTICLE V, DIVISION 51A-5.100.; FLOOD PLAIN REGULATIONS. 5. THE AREA OF SUGGESTED LAND RECLAMATION (~21,000 SQ-FT) IS APPROXIMATE AND DOES NOT REPRESENT THE ACTUAL AREA OF RECLAMATION. A DETAILED FLOOD RECLAMATION STUDY WOULD NEED TO BE CONDUCTED ON THIS PROPERTY PRIOR TO LAND RECLAMATION DETERMINATION. OP TY BO UN DA RY Y CR TL W PK ES ER INE PR OP ER TY B 8 SPENCER ROAD SUITE 100 BOERNE, TEXAS 78006 OFFICE: 830.249.0600 CONTACT@MATKINHOOVER.COM OU ND AR Y 5.1. FILLING IN THE FLOOD PLAIN: SEC. 51A-5.105 5.2. SETBACK FROM NATURAL CHANNEL: A REQUIRED 20'-0" SETBACK FROM CREST LINE PLUS A 4:1 SLOPE UNTIL AN ELEVATION OF AT LEAST 2'-0" ABOVE B.F.E. (SEC. 51A-5.106.). 530 OVERBANK N = 0.080 EX 510 E EL 67 Y E DA R AN EL AD RO 52 0' GE TY BO UN YF DA Y ER FW RY MA 540' RV IN DL OV E 530' 53 0' MA RV IN (U D L.S. OV 67 E F ) W OP RO N PR PL EX TA RY OP ' UN DA PR 12 520 BO ER TY (U BO.S. UN AN E FIR PL E X TY Z:\PROJECTS\2953 - Siekielski Multifamily - Dallas\Exhibits\FIG 2.0 - Reclamation Feasibility Study.dwg FIR EL ) AN E 6+00 8+00 10+00 EXISTING PROPOSED Profile: 10yr Flow Discharge = 2,800 cfs 10yr = 508.3 ft Profile: 10yr Flow Discharge = 2,800 cfs 10yr = 508.3 ft Profile: 100yr Flow Discharge = 4,800 cfs 100yr = 509.9 ft Profile: 100yr Flow Discharge = 4,800 cfs 100yr = 509.9 ft 12+00 DALLAS COUNTY, TEXAS FIR 4+00 SIEKIELSKI MF FEASIBILITY LA LINE CRES T EL AN E 2+00 FOR 480 0+00 FLOOD RECLAMATION FEASIBILITY STUDY 490 FIR OP ER 10-YR B.F.E. FOR REVIEW ONLY - NOT FOR CONSTRUCTION NE 12 FIR E AN EXISTING GROUND ' EL 500 500 FIR INE TL ES CR PL 100-YR B.F.E. ' PR OVERBANK N = 0.080 PROPOSED GROUND 520 510 36 CHANNEL N = 0.040 TEXAS REGISTERED ENGINEERING FIRM F-004512 SURVEYING FIRM F-10024000 PR 3303 SHELL ROAD SUITE 100 GEORGETOWN, TEXAS 78628 OFFICE: 512.868.2244 INE ON AG NT PE 510' TL ENGINEERING & SURVEYING ES W CR B.F.E. -5 10 ' 60' This document is released for REVIEW PURPOSES ONLY, NOT FOR CONSTRUCTION and was prepared under the authorization of Garrett D. Keller, Registered Professional Engineer, State of Texas, Registration No. 111511. DATE: March, 2018 355' EXISTING 5' CONTOUR 15' 30' 45' SHEET SIZE: 24" x 36" FIG 2.0 2953.00 JOB NO. DESIGNED BY: T. LUNG P.T.COLLINS LUNG DRAWN BY: CHECKED BY: G. KELLER
295300 V FLOODSTUDY PREDEV.RPT HEC RAS Version 4.1.0 Jan 2010 U.S. Army Corps of Engineers Hydrologic Engineering Center 609 Second Street Davis, California X X XXXXXX XXXX XXXX XX XXXX X X X X X X X X X X X X X X X X X X X XXXXXXX XXXX X XXXX XXXX XXXXXX XXXX X X X X X X X X X X X X X X X X X X X X X XXXXXX XXXX X X X X XXXXX PROJECT DATA Project Title : Project File : 295300 V FLOODSTUDY PREDEV.PRJ Run Date and Time : 07/11/18 03:31:49 PM Project in English units PLAN DATA Plan Summary Information: Number of: Cross Sections = 13 Multiple Openings = 0 Culverts = 0 Bridges = 0 Computational Information Water surface calculation tolerance = 0.01 Critical depth calculation tolerance = 0.01 Maximum number of iterations = 20 Maximum difference tolerance = 0.3 Flow tolerance factor = 0.001 Computational Flow Regime: Subcritical Flow Encroachment Data: None FLOW DATA Flow Data (cfs) Page 1
295300 V FLOODSTUDY PREDEV.RPT River Reach Riv Sta 10yr 100yr Fivemi 1 13 2800 4800 Boundary Conditions River Reach Profile Upstream Downstream Fivemi 1 10yr Critical Depth Fivemi 1 100yr Critical Depth CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 13 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 521.51 7.77 521.44 11.82 521.22 29.01 519.9 46.06 518.2 71.13 515.25 80.34 514.52 102.48 514.23 111.87 513.77 124.18 514.11 148.56 514.09 175.04 513.84 188.44 513.3 222.83 511.47 236.91 511.63 244.94 511.6 252.8 511.74 262.78 512.22 276.78 512.68 285.02 512.87 292.22 512.84 303.95 512.11 313.28 508.93 317.66 506.89 321.89 505.49 325.79 504.85 330.96 505.09 334.46 504.39 341.9 503.52 353.48 496.03 357.51 493.22 370.09 490.19 370.58 490.18 395.97 490.81 396.81 491.47 410.31 502.54 416.35 508.33 420.42 512.01 423.57 512.37 434.44 512.45 447.88 512.25 458.51 512.31 469.24 512.13 477.01 512.1 485.42 512.44 496.97 512.59 509.06 512.82 522.15 512.94 542.15 513.07 560 513.45 568.6 513.5 581.12 513.42 591.39 513.18 595.69 513.17 607.75 513.45 611.39 514.58 621.32 516.12 630.92 517.13 635.48 517.24 655.47 518.08 665.9 517.86 680.36 517.93 686.23 517.85 705.42 518.05 718.79 519.58 725.28 520.2 730.7 521.69 739.36 523.77 744.91 525.23 748.69 525.9 755.22 526.79 760.75 527.3 761.02 527.53 766.07 528.18 774.87 530.05 Page 2
295300 V FLOODSTUDY PREDEV.RPT 789.92 532.74 793.79 533.84 803.09 537.5 806.16 538.83 812.31 541.11 826.59 546.59 830.45 547.21 835.67 548.85 844.79 550.97 855.32 553.1 862.15 554.66 867.54 555.34 871.2 555.61 877.39 556.53 883.42 557.83 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 292.22.04 420.42.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 292.22 420.42 256.39 301.51 405.43 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.65 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n Val 0.040 W.S. Elev (ft) 508.56 Reach Len. (ft) 256.39 301.51 405.43 Crit W.S. (ft) Flow Area (sq ft) 1119.30 E.G. Slope (ft/ft) 0.000214 Area (sq ft) 1119.30 Q Total (cfs) 2800.00 Flow (cfs) 2800.00 Top Width (ft) 102.52 Top Width (ft) 102.52 Vel Total (ft/s) 2.50 Avg. Vel. (ft/s) 2.50 Max Chl Dpth (ft) 18.38 Hydr. Depth (ft) 10.92 Conv. Total (cfs) 191371.6 Conv. (cfs) 191371.6 Length Wtd. (ft) 301.51 Wetted Per. (ft) 113.36 Min Ch El (ft) 490.18 Shear (lb/sq ft) 0.13 Alpha 1.00 Stream Power (lb/ft s) 883.42 0.00 0.00 Frctn Loss (ft) 0.07 Cum Volume (acre ft) 12.08 81.80 1.83 C & E Loss (ft) 0.00 Cum SA (acres) 9.51 7.88 1.06 CROSS SECTION OUTPUT Profile # 100yr Page 3
295300 V FLOODSTUDY PREDEV.RPT E.G. Elev (ft) 510.58 Element Left OB Channel Right OB Vel Head (ft) 0.21 Wt. n Val 0.040 W.S. Elev (ft) 510.37 Reach Len. (ft) 256.39 301.51 405.43 Crit W.S. (ft) Flow Area (sq ft) 1311.32 E.G. Slope (ft/ft) 0.000407 Area (sq ft) 1311.32 Q Total (cfs) 4800.00 Flow (cfs) 4800.00 Top Width (ft) 109.55 Top Width (ft) 109.55 Vel Total (ft/s) 3.66 Avg. Vel. (ft/s) 3.66 Max Chl Dpth (ft) 20.19 Hydr. Depth (ft) 11.97 Conv. Total (cfs) 238024.1 Conv. (cfs) 238024.1 Length Wtd. (ft) 301.53 Wetted Per. (ft) 121.41 Min Ch El (ft) 490.18 Shear (lb/sq ft) 0.27 Alpha 1.00 Stream Power (lb/ft s) 883.42 0.00 0.00 Frctn Loss (ft) 0.12 Cum Volume (acre ft) 32.58 95.20 4.54 C & E Loss (ft) 0.00 Cum SA (acres) 15.91 8.18 2.65 CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 12 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 524.4 7.47 524.24 12.24 523.98 16.58 522.08 21.13 521.47 23.77 521.64 38.91 519.48 47.85 518.58 60.8 518.46 80.1 517.83 96.69 517.34 113.7 516.56 128.63 515.94 146.94 515.1 151.6 514.81 156.9 514.01 161.51 513.63 164.18 513.85 167.55 513.19 177.84 511.53 181.59 511.09 188.54 510.64 196.85 510.55 207.03 510.67 214.61 510.55 221.52 510.63 231.63 511.54 239.9 511.98 251.67 512.16 259.34 512.18 265.7202 511.904 271.94 510.99 277.18 509.48 285.72 505.62 292.41 504.02 Page 4
295300 V FLOODSTUDY PREDEV.RPT 297.02 503.75 299.91 503.92 305.6 501.53 308.69 500.87 311.08 499.41 316.32 497.08 319.76 494.93 323.42 493.16 377.65 496.89 379.6 497.92 402.69 511.08403.2615511.0897 440.7 510.6 450.94 510.27 468.73 510.61 477.29 511.51 488.67 511.63 496.65 511.5 502.99 511.19 513.79 511.1 537.06 511.47 543.99 511.53 548.98 511.72 554.32 511.71 577.54 510.87 599.06 510.27 607.23 510.28 619.65 509.66 630.4 509.97 637.64 510.35 661.83 511.13 678.21 511.85 703.44 513.11 734.09 514.46 742.52 514.67 747.5 515.06 757.54 517.73 763.1 518.69 769.14 518.9 782.76 519.71 794.35 519.94 820.58 520.15 829.34 520.8 839.07 520.94 858.72 533.29 869.84 536.12 884.61 538.58 893.27 542.28 893.59 542.3 904.78 547.81 914.21 550 917.87 551.18 923.61 553.32 928.33 555.29 951.96 558.1 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08265.7202.04403.2615.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 265.72 403.262 380.363 337.711 213.077 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.59 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n Val 0.040 W.S. Elev (ft) 508.49 Reach Len. (ft) 380.36 337.71 213.08 Crit W.S. (ft) Flow Area (sq ft) 1143.41 E.G. Slope (ft/ft) 0.000228 Area (sq ft) 1143.41 Q Total (cfs) 2800.00 Flow (cfs) 2800.00 Top Width (ft) 118.79 Top Width (ft) 118.79 Vel Total (ft/s) 2.45 Avg. Vel. (ft/s) 2.45 Max Chl Dpth (ft) 15.33 Hydr. Depth (ft) 9.63 Conv. Total (cfs) 185507.1 Conv. (cfs) 185507.1 Length Wtd. (ft) 337.71 Wetted Per. (ft) 125.27 Min Ch El (ft) 493.16 Shear (lb/sq ft) 0.13 Alpha 1.00 Stream Power (lb/ft s) 951.96 0.00 0.00 Frctn Loss (ft) 0.08 Cum Volume (acre ft) 12.08 73.97 Page 5
295300 V FLOODSTUDY PREDEV.RPT 1.83 C & E Loss (ft) 0.00 Cum SA (acres) 9.51 7.11 1.06 CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 510.45 Element Left OB Channel Right OB Vel Head (ft) 0.19 Wt. n Val 0.040 0.080 W.S. Elev (ft) 510.26 Reach Len. (ft) 380.36 337.71 213.08 Crit W.S. (ft) Flow Area (sq ft) 1359.45 9.11 E.G. Slope (ft/ft) 0.000411 Area (sq ft) 1359.45 9.11 Q Total (cfs) 4800.00 Flow (cfs) 4798.38 1.62 Top Width (ft) 154.95 Top Width (ft) 126.76 28.19 Vel Total (ft/s) 3.51 Avg. Vel. (ft/s) 3.53 0.18 Max Chl Dpth (ft) 17.10 Hydr. Depth (ft) 10.72 0.32 Conv. Total (cfs) 236702.0 Conv. (cfs) 236622.3 79.7 Length Wtd. (ft) 337.73 Wetted Per. (ft) 134.04 28.21 Min Ch El (ft) 493.16 Shear (lb/sq ft) 0.26 0.01 Alpha 1.01 Stream Power (lb/ft s) 951.96 0.00 0.00 Frctn Loss (ft) 0.13 Cum Volume (acre ft) 32.58 85.96 4.50 C & E Loss (ft) 0.01 Cum SA (acres) 15.91 7.37 2.52 Warning: Divided flow computed for this cross section. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 11 INPUT Description: Page 6
295300 V FLOODSTUDY PREDEV.RPT Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 516.71 4.08 516.64 30.41 515.64 45.48 514.81 57.54 513.8 70.47 512.95 82.87 512.57 87.75 512.2 104.41 511.2 110.24 510.99 120.98 511.29 132.75 511.5 137.72 512.19 143.62 512.29 154.87 511.99 164.93 511.85 174.61 512.05 179.57 512.32 199.12 511.22 211.72 510.24 219.71 509.51 238.85 509.21 258.65 509.26 269.65 509.88 287.65 510.5 303.09 510.71 315.25 510.57 323.43 510.2 331.49 510.29 347.55 511.15 366.79 511.46 375.92 511.7 378.48 511.5 390.74 507.11 392.98 506.57 399.67 503.25 406.89 501.73 415.87 501.92 423.92 500.4 433.52 500.22 438.75 498.71 440.82 498.74 509.86 495.92 513.17 499.51 515.87 501.02 517.96 501.42 533.88 508.3 538.03 510.09 559.2 509.99 572.77 509.71 578.87 509.87 591.95 510.55 601.53 510.59 616.69 511.54 625.98 511.82 642.69 512.17 655.94 512.52 676.55 512.85 690.92 512.73 697.33 512.93 707.38 513.91 714.66 514.02 736.38 514 740.66 514.09 751.97 514.63 769.93 515.13 773.61 515.74 781.23 516.51 788.94 516.94 798.85 518.57 803.08 519.1 816.05 523.11 833.02 530.27 839.31 532.33 850.11 536.6 853.91 538.98 877.72 551.78 897.44 561.95 906 563.6 910.97 563.78 915.83 564.31 923.65 564.67 930.25 565.14 946.75 565.63 965.19 566.09 980.77 566.11 998.03 565.26 1008.07 565.18 1017.73 564.73 1045.94 565.03 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 375.92.04 538.03.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 375.92 538.03 269.48 341.86 357.84 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.51 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n Val 0.040 W.S. Elev (ft) 508.42 Reach Len. (ft) 269.48 341.86 357.84 Crit W.S. (ft) Flow Area (sq ft) 1230.24 E.G. Slope (ft/ft) 0.000231 Area (sq ft) 1230.24 Q Total (cfs) 2800.00 Flow (cfs) 2800.00 Top Width (ft) 147.10 Top Width (ft) 147.10 Vel Total (ft/s) 2.28 Avg. Vel. (ft/s) 2.28 Max Chl Dpth (ft) 12.50 Hydr. Depth (ft) 8.36 Page 7
295300 V FLOODSTUDY PREDEV.RPT Conv. Total (cfs) 184064.0 Conv. (cfs) 184064.0 Length Wtd. (ft) 341.87 Wetted Per. (ft) 152.20 Min Ch El (ft) 495.92 Shear (lb/sq ft) 0.12 Alpha 1.00 Stream Power (lb/ft s) 1045.94 0.00 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre ft) 12.08 64.77 1.83 C & E Loss (ft) 0.01 Cum SA (acres) 9.51 6.08 1.06 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 510.31 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 510.15 Reach Len. (ft) 269.48 341.86 357.84 Crit W.S. (ft) Flow Area (sq ft) 42.69 1491.03 9.18 E.G. Slope (ft/ft) 0.000386 Area (sq ft) 42.69 1491.03 9.18 Q Total (cfs) 4800.00 Flow (cfs) 11.80 4787.06 1.14 Top Width (ft) 266.57 Top Width (ft) 64.64 155.77 46.16 Vel Total (ft/s) 3.11 Avg. Vel. (ft/s) 0.28 3.21 0.12 Max Chl Dpth (ft) 14.23 Hydr. Depth (ft) 0.66 9.57 0.20 Conv. Total (cfs) 244408.1 Conv. (cfs) 600.9 243749.1 58.1 Length Wtd. (ft) 341.59 Wetted Per. (ft) 64.69 161.51 46.17 Min Ch El (ft) 495.92 Shear (lb/sq ft) 0.02 0.22 0.00 Alpha 1.06 Stream Power (lb/ft s) 1045.94 0.00 0.00 Frctn Loss (ft) 0.06 Cum Volume (acre ft) 32.39 74.91 4.45 Page 8
295300 V FLOODSTUDY PREDEV.RPT C & E Loss (ft) 0.03 Cum SA (acres) 15.62 6.27 2.34 Warning: Divided flow computed for this cross section. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 10 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 514.6 3.66 514.7 14.65 514.18 23.8 514.3 62.01 514.25 80.99 513.39 91.77 513.31 114.83 513.3 154.92 512.51 166.95 512.58 180.56 512.18 190.92 512.03 213.44 511.81 232.14 511.84 242.47 511.4 251.72 510.61 262 509.42 277.27 508.16 285.75 508.13 292.93 508.28 310.4 508.38 322.25 508.69333.4967507.4216 339.47 506.91 342.79 505.09 357.04 496.59 363.2 493.63 369.95 491.25 373.43 491.36 454.48 492.32 458.27 497.6 480.26 508.13481.7669508.2327 483.34 508.34 489.4 508.01 493.17 507.37 497.34 506.94 507.48 506.85 514.92 507.11 516 507.38 522.83 507.68 529.43 508.51 544.94 509.23 553.15 509.82 573.83 510.46 589.29 511.12 597.57 511.39 601.28 511.38 621.81 511.6 634.39 511.56 650.54 511.63 661.27 512.11 671.67 513.01 713.76 513.91 730.78 514.05 741.46 514.44 750.55 514.53 769.92 514.89 796.66 515.07 799.98 515 812.99 517.7 817.09 517.87 841.53 518.41 859.84 518.52 878.86 519.03 885.11 519.01 888.55 519.35 890.9 521.77 893.1 522.93 914.7 523.67 919.1 524.9 922.65 525.06 924.94 526.69 929.98 527.62 934.39 528.66 954.67 532.57 964.39 533.53 981.61 537.29 984.77 537.85 991.96 539.91 997.04 540.27 1000.51 540.72 1009.11 540.76 1021.8 539.8 1030.99 540.34 1039.93 541.42 1059.01 541.8 1067.06 541.64 1068.47 541.13 1081.27 539.39 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08333.4967.04481.7669.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 333.497 481.767 270.301 260.175 233.336 0.6 0.8 CROSS SECTION OUTPUT Profile # 10yr Page 9
295300 V FLOODSTUDY PREDEV.RPT E.G. Elev (ft) 508.46 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 508.42 Reach Len. (ft) 270.30 260.17 233.34 Crit W.S. (ft) Flow Area (sq ft) 10.43 1890.67 45.55 E.G. Slope (ft/ft) 0.000057 Area (sq ft) 10.43 1890.67 45.55 Q Total (cfs) 2800.00 Flow (cfs) 0.64 2793.10 6.27 Top Width (ft) 242.05 Top Width (ft) 46.81 148.27 46.97 Vel Total (ft/s) 1.44 Avg. Vel. (ft/s) 0.06 1.48 0.14 Max Chl Dpth (ft) 17.17 Hydr. Depth (ft) 0.22 12.75 0.97 Conv. Total (cfs) 369454.3 Conv. (cfs) 84.2 368543.4 826.7 Length Wtd. (ft) 260.19 Wetted Per. (ft) 46.88 157.29 47.15 Min Ch El (ft) 491.25 Shear (lb/sq ft) 0.00 0.04 0.00 Alpha 1.05 Stream Power (lb/ft s) 1081.27 0.00 0.00 Frctn Loss (ft) 0.02 Cum Volume (acre ft) 12.04 52.52 1.64 C & E Loss (ft) 0.00 Cum SA (acres) 9.37 4.92 0.86 Warning: Divided flow computed for this cross section. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 510.22 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 510.14 Reach Len. (ft) 270.30 260.17 233.34 Crit W.S. (ft) Flow Area (sq ft) 128.00 2145.81 154.05 E.G. Slope (ft/ft) 0.000108 Area (sq ft) 128.00 2145.81 154.05 Q Total (cfs) 4800.00 Flow (cfs) 34.33 4720.50 45.16 Top Width (ft) 307.85 Top Width (ft) 77.75 148.27 Page 10
295300 V FLOODSTUDY PREDEV.RPT 81.83 Vel Total (ft/s) 1.98 Avg. Vel. (ft/s) 0.27 2.20 0.29 Max Chl Dpth (ft) 18.89 Hydr. Depth (ft) 1.65 14.47 1.88 Conv. Total (cfs) 462771.6 Conv. (cfs) 3310.2 455107.2 4354.2 Length Wtd. (ft) 260.19 Wetted Per. (ft) 77.92 157.29 82.06 Min Ch El (ft) 491.25 Shear (lb/sq ft) 0.01 0.09 0.01 Alpha 1.22 Stream Power (lb/ft s) 1081.27 0.00 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre ft) 31.86 60.64 3.78 C & E Loss (ft) 0.01 Cum SA (acres) 15.18 5.08 1.81 CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 9 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 511.62 6.57 511.63 36.55 511.09 49.69 510.89 64.07 510.99 67.43 511.1 87.73 510.55 93.9 510.45 102.21 510.46 109 510.34 117.37 510.29 144.06 510.5 157.99 510.5 176.17 510.36 188.36 510.04 221.76 509.9 226.55 509.79 259.2 509.63 271.12 509.49 304.06 509.38 306.2 509.29 321.44 508.19 342.1 506.49 349.84 506.42 362.35 506.79 376.68 506.52 380.64 506.68 388.13 507.58 401.15 508.46 403.92 508.71 411.86 508.59 418.48 508.2 429.23 507.29431.6055506.8119 445.77 504.24 452.65 501.59 455.9 501.05 457.84 500.93 462.54 500.17 473.38 497.4 478.73 496.23 481.21 495.53 491.34 493.06 492.56 492.97 545.17 489.1 546.82 488.99 550.92 492.88 568.01 505.76574.3891509.0878 574.7 509.25 586.08 509.46 601.72 509.84 621.22 510.46 649.24 511.16 664.19 511.46 679.04 511.82 687.92 511.98 700.86 512.12 717.94 512.4 735.16 512.72 755.64 513.26 768.24 513.5 784.63 513.72 805.13 514.1 817.95 514.26 834.42 514.66 862.97 515.04 879.32 515.49 915.01 516.33 934.39 516.87 960.51 516.62 969.38 516.74 978.88 517.43 984.14 517.96 988.61 517.8 996.05 518.42 1009.76 519.04 1016.11 519.12 1026.26 519.04 1042.14 519.69 1046.23 519.4 1049.02 519.43 1060.69 519.83 1065.8 520.14 1071.44 520.78 1073.94 521.2 1083.41 521.24 1086.38 521.16 1089.39 521.31 1103.27 521.44 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value Page 11
295300 V FLOODSTUDY PREDEV.RPT 0.08431.6055.04574.3891.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 431.605 574.389 506.518 192.991 189.627 0.6 0.8 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.43 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n Val 0.080 0.040 W.S. Elev (ft) 508.39 Reach Len. (ft) 506.52 192.99 189.63 Crit W.S. (ft) Flow Area (sq ft) 116.21 1689.58 E.G. Slope (ft/ft) 0.000077 Area (sq ft) 116.21 1689.58 Q Total (cfs) 2800.00 Flow (cfs) 21.80 2778.20 Top Width (ft) 239.37 Top Width (ft) 97.92 141.45 Vel Total (ft/s) 1.55 Avg. Vel. (ft/s) 0.19 1.64 Max Chl Dpth (ft) 19.40 Hydr. Depth (ft) 1.19 11.94 Conv. Total (cfs) 318128.1 Conv. (cfs) 2476.4 315651.7 Length Wtd. (ft) 196.69 Wetted Per. (ft) 98.18 149.81 Min Ch El (ft) 488.99 Shear (lb/sq ft) 0.01 0.05 Alpha 1.12 Stream Power (lb/ft s) 1103.27 0.00 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre ft) 11.65 41.83 1.52 C & E Loss (ft) 0.03 Cum SA (acres) 8.92 4.06 0.74 Warning: Divided flow computed for this cross section. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile # 100yr Page 12
295300 V FLOODSTUDY PREDEV.RPT E.G. Elev (ft) 510.18 Element Left OB Channel Right OB Vel Head (ft) 0.09 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 510.09 Reach Len. (ft) 506.52 192.99 189.63 Crit W.S. (ft) Flow Area (sq ft) 366.72 1930.90 16.38 E.G. Slope (ft/ft) 0.000143 Area (sq ft) 366.72 1930.90 16.38 Q Total (cfs) 4800.00 Flow (cfs) 106.65 4691.16 2.19 Top Width (ft) 422.85 Top Width (ft) 245.00 142.78 35.07 Vel Total (ft/s) 2.07 Avg. Vel. (ft/s) 0.29 2.43 0.13 Max Chl Dpth (ft) 21.10 Hydr. Depth (ft) 1.50 13.52 0.47 Conv. Total (cfs) 400785.0 Conv. (cfs) 8905.1 391697.0 182.9 Length Wtd. (ft) 210.81 Wetted Per. (ft) 245.32 151.31 35.12 Min Ch El (ft) 488.99 Shear (lb/sq ft) 0.01 0.11 0.00 Alpha 1.34 Stream Power (lb/ft s) 1103.27 0.00 0.00 Frctn Loss (ft) 0.05 Cum Volume (acre ft) 30.33 48.46 3.32 C & E Loss (ft) 0.04 Cum SA (acres) 14.18 4.21 1.50 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 8 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 511.71 6.72 512.18 14.64 512.23 37.01 512.12 53.55 511.62 69.16 511.32 90.76 511.32 96.68 511.04 132.2 508.81 134.66 508.56 141.51 508.73 166.79 508.21 175.67 508.16 188.21 508.95 195.79 508.99 200.21 509.3 213.4 509.21 254.29 508.17 269.24 508.02 286.27 508.1 Page 13
295300 V FLOODSTUDY PREDEV.RPT 291.88 508.22 301.36 508.05 309.6 508.13 316.34 507.92 328.1 508.12 339.15 508.03 348.45 508.16 367.96 507.76 384.45 507.8 415.55 507.59 438.95 507.71 457.02 507.22 461.61 507.21 471.42 506.52 479.4 506.38 495.17 506.51 505.44 506.15 512.64 506.41 519.21 507.2524.6652 507.567 527.49 507.45 538.31 501.11 546.31 493 610.8 498.44 615.94 499.18 622.89 502.68 633.81 507.58636.8759508.0322 640.61 508.49 648.61 508 659.44 508.82 663.93 508.19 686.2 508.46 694.68 508.74 720.96 509.34 740.23 509.67 761.16 510.22 772.98 510.67 798.53 511.44 835.52 512.94 856.67 513.68 879.16 514.67 911.3 516.16 923.25 516.65 946.42 517.99 968.25 519.63 986.91 520.55 996.99 521.17 1009.31 522.19 1016.21 523.45 1037.82 525.56 1043.47 525.47 1048.08 526.08 1063.26 529.87 1066.99 530.46 1069.72 530.46 1079.24 531.21 1089.24 532.64 1094.12 533 1098.76 533.75 1105.19 535.44 1116.83 538.19 1131.07 542.34 1137.83 544.04 1144.74 546.95 1164.87 550.07 1178.96 554.27 1182.83 555.14 1191.02 556.14 1194.98 556.91 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08524.6652.04636.8759.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 524.665 636.876 225.418 245.001 306.134 0.6 0.8 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.37 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 508.28 Reach Len. (ft) 225.42 245.00 306.13 Crit W.S. (ft) Flow Area (sq ft) 192.26 1080.32 1.68 E.G. Slope (ft/ft) 0.000250 Area (sq ft) 192.26 1080.32 1.68 Q Total (cfs) 2800.00 Flow (cfs) 44.22 2755.67 0.12 Top Width (ft) 418.33 Top Width (ft) 288.38 112.21 17.73 Vel Total (ft/s) 2.20 Avg. Vel. (ft/s) 0.23 2.55 0.07 Max Chl Dpth (ft) 15.28 Hydr. Depth (ft) 0.67 9.63 0.09 Conv. Total (cfs) 176937.9 Conv. (cfs) 2794.3 174136.3 7.3 Length Wtd. (ft) 243.83 Wetted Per. (ft) 288.51 119.52 17.77 Min Ch El (ft) 493.00 Shear (lb/sq ft) 0.01 0.14 0.00 Page 14
295300 V FLOODSTUDY PREDEV.RPT Alpha 1.33 Stream Power (lb/ft s) 1194.98 0.00 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre ft) 9.86 35.70 1.51 C & E Loss (ft) 0.05 Cum SA (acres) 6.67 3.50 0.70 Warning: Divided flow computed for this cross section. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 510.09 Element Left OB Channel Right OB Vel Head (ft) 0.16 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 509.92 Reach Len. (ft) 225.42 245.00 306.13 Crit W.S. (ft) Flow Area (sq ft) 797.56 1265.25 121.69 E.G. Slope (ft/ft) 0.000363 Area (sq ft) 797.56 1265.25 121.69 Q Total (cfs) 4800.00 Flow (cfs) 439.33 4315.48 45.19 Top Width (ft) 635.40 Top Width (ft) 410.20 112.21 112.99 Vel Total (ft/s) 2.20 Avg. Vel. (ft/s) 0.55 3.41 0.37 Max Chl Dpth (ft) 16.92 Hydr. Depth (ft) 1.94 11.28 1.08 Conv. Total (cfs) 252046.0 Conv. (cfs) 23068.9 226604.0 2373.1 Length Wtd. (ft) 242.26 Wetted Per. (ft) 410.42 119.52 113.13 Min Ch El (ft) 493.00 Shear (lb/sq ft) 0.04 0.24 0.02 Alpha 2.17 Stream Power (lb/ft s) 1194.98 0.00 0.00 Frctn Loss (ft) 0.05 Cum Volume (acre ft) 23.56 41.38 3.02 C & E Loss (ft) 0.08 Cum SA (acres) 10.37 3.64 1.18 Warning: The conveyance ratio (upstream conveyance divided by downstream Page 15
295300 V FLOODSTUDY PREDEV.RPT conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 7 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 508.23 9.64 508.14 21.86 507.73 34.55 507.84 62.28 507.2 77.46 507.03 90.58 507.1 136.58 506.77 140.7 506.53 152.26 506.64 163.68 506.58 172.32 506.76 176.93 506.55 185.56 506.54 198.03 506.32 208.53 506.31 216.55 505.75 223.76 506.36 241.78 506.14 260.09 506.42 271.99 506.38 298.77 506.57 311.14 506.49 341.53 506.71 365.61 506.71 384.72 506.63 408.55 506.42 432.81 506.32 484 505.64 518.46 505.23 539.84 505.18 561.39 505.45 576.21 505.72 592.31 506.19 614.93 507.02 629.56 507.43 630.05 507.26 637.48 505.09 647.95 500.01 654.07 498.56 660.41 494.42 726.23 491.8 739.68 498.98 755.65 507.76 769.25 513.51 787.55 514.7 801.43 515.49 822.83 516.9 843.59 518.39 864.31 520.01 893.04 522.4 913.03 524.13 928.75 525.59 971.93 529.71 994.53 532.01 1010.48 533.55 1033.3 535.9 1082.92 540.8 1089.29 541.36 1131.49 545.64 1134.9 545.87 1147.98 547.41 1162.94 548.69 1169.93 549.47 1180.29 550.31 1210.9 553.32 1223.01 554.34 1233.86 555.48 1239.91 555.9 1243.9 556.59 1258.19 557.65 1266.46 558.56 1284.6 559.95 1294.4 560.99 1310.33 562.37 1325.92 563.61 1344.83 564.85 1347.29 564.9 1359.59 565.98 1365.45 566.17 1377.97 566.87 1388.54 567.76 1407.02 568.62 1412.92 569.04 1439.02 570.22 1467.08 571.6 1501.99 572.88 1523.73 573.52 1540.31 573.91 1573.37 574.43 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 630.05.04 769.25.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 630.05 769.25 423.6 74.37 75.8 0.6 0.8 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.29 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n Val 0.080 0.040 W.S. Elev (ft) 508.25 Reach Len. (ft) 423.60 74.37 75.80 Crit W.S. (ft) Flow Area (sq ft) 1120.00 1452.51 Page 16
295300 V FLOODSTUDY PREDEV.RPT E.G. Slope (ft/ft) 0.000090 Area (sq ft) 1120.00 1452.51 Q Total (cfs) 2800.00 Flow (cfs) 289.69 2510.31 Top Width (ft) 756.81 Top Width (ft) 630.05 126.76 Vel Total (ft/s) 1.09 Avg. Vel. (ft/s) 0.26 1.73 Max Chl Dpth (ft) 16.45 Hydr. Depth (ft) 1.78 11.46 Conv. Total (cfs) 295004.3 Conv. (cfs) 30521.4 264483.0 Length Wtd. (ft) 93.88 Wetted Per. (ft) 630.23 133.85 Min Ch El (ft) 491.80 Shear (lb/sq ft) 0.01 0.06 Alpha 2.27 Stream Power (lb/ft s) 1573.37 0.00 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre ft) 6.46 28.57 1.51 C & E Loss (ft) 0.00 Cum SA (acres) 4.30 2.82 0.64 Warning: The cross section end points had to be extended vertically for the computed water surface. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 509.96 Element Left OB Channel Right OB Vel Head (ft) 0.06 Wt. n Val 0.080 0.040 W.S. Elev (ft) 509.89 Reach Len. (ft) 423.60 74.37 75.80 Crit W.S. (ft) Flow Area (sq ft) 2153.83 1663.70 E.G. Slope (ft/ft) 0.000133 Area (sq ft) 2153.83 1663.70 Q Total (cfs) 4800.00 Flow (cfs) 1046.86 3753.15 Top Width (ft) 760.70 Top Width (ft) 630.05 130.65 Vel Total (ft/s) 1.26 Avg. Vel. (ft/s) 0.49 2.26 Max Chl Dpth (ft) 18.09 Hydr. Depth (ft) 3.42 12.73 Conv. Total (cfs) 415459.0 Conv. (cfs) 90609.5 324849.6 Page 17
295300 V FLOODSTUDY PREDEV.RPT Length Wtd. (ft) 116.27 Wetted Per. (ft) 631.87 138.06 Min Ch El (ft) 491.80 Shear (lb/sq ft) 0.03 0.10 Alpha 2.55 Stream Power (lb/ft s) 1573.37 0.00 0.00 Frctn Loss (ft) 0.02 Cum Volume (acre ft) 15.92 33.15 2.60 C & E Loss (ft) 0.02 Cum SA (acres) 7.68 2.96 0.78 Warning: The cross section end points had to be extended vertically for the computed water surface. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 6 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 536.03 9.87 535.82 21.36 535.4 30.16 535.27 53.25 534.61 88.22 533.48 102.65 533.22 111.22 533.15 118.29 532.96 127.59 532.61 174.1 531.53 192.85 531.17 220.2 530.58 227.82 530.46 244.59 530.1 250.77 530.03 268.55 529.71 277.32 529.64 294.85 529.39 335.52 528.89 346.69 528.78 371.21 528.42 381.71 528.34 413.27 527.96 437.32 527.74 487.22 527.58 494.96 525.99 501.77 523.84 523.27 517.25 532.34 513.86 546.01 509.26 550.88 507.85 563.9 506.19 565.52 506.05 576.6 506.23 594.97 506.48 598.99 506.47 613.72 507.47 621.33 507.11622.3468506.7461 625.13 505.75 630.06 505.34 649.9 495.18 653.75 493.09 654.99 491.93 658.06 490.15 659.3 490.12 681.78 489.84 715.85 489.4 718.62 490.94 733.5 499.89 738.94 503.01 745 506.28753.7977511.0207 760.31 514.53 782.29 525 791.44 529.32 812.77 529.59 828.85 529.9 869.56 530.84 904.07 531.83 938.31 532.76 959.92 533.45 970.46 533.73 992.62 534.43 1001.07 534.66 1030.43 535.62 1056.94 536.44 1077.36 537.19 1104.3 538.11 1115.33 538.56 1136.33 539.34 1160.47 540.3 1177.38 540.93 1197.13 541.73 1223.87 542.73 1227.77 542.94 1248.62 543.75 1271.84 544.69 1303.82 546.02 1328.66 547.11 1344.48 547.68 1377.22 549.02 1399.64 549.81 1425.24 550.79 1437.93 551.19 1449.74 551.65 1480.75 552.76 1509.34 553.62 1550.85 555 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08622.3468.04753.7977.08 Page 18
295300 V FLOODSTUDY PREDEV.RPT Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 622.347 753.798 99.6015 92.7797 94.0137 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.29 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n Val 0.080 0.040 W.S. Elev (ft) 508.24 Reach Len. (ft) 99.60 92.78 94.01 Crit W.S. (ft) Flow Area (sq ft) 112.11 1674.72 E.G. Slope (ft/ft) 0.000070 Area (sq ft) 112.11 1674.72 Q Total (cfs) 2800.00 Flow (cfs) 23.12 2776.88 Top Width (ft) 199.12 Top Width (ft) 72.83 126.30 Vel Total (ft/s) 1.57 Avg. Vel. (ft/s) 0.21 1.66 Max Chl Dpth (ft) 18.84 Hydr. Depth (ft) 1.54 13.26 Conv. Total (cfs) 335426.4 Conv. (cfs) 2769.2 332657.2 Length Wtd. (ft) 92.81 Wetted Per. (ft) 73.10 135.45 Min Ch El (ft) 489.40 Shear (lb/sq ft) 0.01 0.05 Alpha 1.11 Stream Power (lb/ft s) 1550.85 0.00 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre ft) 0.47 25.90 1.51 C & E Loss (ft) 0.00 Cum SA (acres) 0.88 2.61 0.64 CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 509.92 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n Val 0.080 0.040 W.S. Elev (ft) 509.82 Reach Len. (ft) 99.60 92.78 94.01 Crit W.S. (ft) Flow Area (sq ft) 231.50 1876.74 Page 19
295300 V FLOODSTUDY PREDEV.RPT E.G. Slope (ft/ft) 0.000141 Area (sq ft) 231.50 1876.74 Q Total (cfs) 4800.00 Flow (cfs) 104.89 4695.11 Top Width (ft) 207.25 Top Width (ft) 78.02 129.23 Vel Total (ft/s) 2.28 Avg. Vel. (ft/s) 0.45 2.50 Max Chl Dpth (ft) 20.42 Hydr. Depth (ft) 2.97 14.52 Conv. Total (cfs) 404565.6 Conv. (cfs) 8840.5 395725.1 Length Wtd. (ft) 92.89 Wetted Per. (ft) 78.53 138.78 Min Ch El (ft) 489.40 Shear (lb/sq ft) 0.03 0.12 Alpha 1.18 Stream Power (lb/ft s) 1550.85 0.00 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre ft) 4.32 30.12 2.60 C & E Loss (ft) 0.00 Cum SA (acres) 4.24 2.74 0.78 CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 5 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 534.36 6.25 534.23 22.26 533.46 28.02 533.6 34.22 533.48 40.07 533.05 41.93 533.1 59.63 532.2 66.44 532.06 79.82 531.36 106.03 530.54 140.77 529.29 160.03 528.79 186.2 528 201.55 527.83 214.6 527.44 220.41 527.43 237.22 527.11 239.7 527.15 253.22 526.89 267.05 526.72 297.92 526.57 302.79 526.46 312.33 526.53 324.41 526.38 367.29 526.16 384.77 526.02 411.05 526.11 439.95 526.11 458.28 526.24 483.25 526.35 520.68 526.81 531.67 522.88 533.76 522.41 553.84 516.31 568.28 511.36 572.74 510 578.74 508.49 596.24 507.56 604.27 507.39 626.07 507.54 637.8 508.46 644.99 508.03 651.79 506.83 657.94 505.75 663.58 502.43 673.18 497.44 681.04 493.06 709.92 489.55 736.15 486.37 748.83 493.73 752.21 495.72 764.56 502.55 768.88 505.03 778.73 510.15 789.07 516.15 810.24 524.93 815.64 526.86 819.78 528.59 822.62 529.38 847.7 529.71 904.76 530.47 928.15 530.99 943.04 531.25 973.19 531.86 1024.41 533.12 1051.42 533.87 1081.72 534.79 1095.78 535.31 1118.82 536.05 1137.22 536.8 1150.2 537.25 1173.03 538.2 1196.11 539.02 1212.81 539.72 1224.95 540.11 1245.33 540.89 1271.27 541.94 1283.29 542.53 1314.98 543.88 Page 20
295300 V FLOODSTUDY PREDEV.RPT 1321.44 544.12 1352.51 545.45 1362.79 545.77 1368.4 546.07 1389.88 546.83 1423.04 548.11 1483.43 550.36 1517.88 551.48 1543.42 552.24 1563.99 552.93 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 651.79.04 778.73.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 651.79 778.73 69.67 61.78 67.5 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.28 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n Val 0.080 0.040 W.S. Elev (ft) 508.24 Reach Len. (ft) 69.67 61.78 67.50 Crit W.S. (ft) Flow Area (sq ft) 36.08 1655.55 E.G. Slope (ft/ft) 0.000071 Area (sq ft) 36.08 1655.55 Q Total (cfs) 2800.00 Flow (cfs) 3.96 2796.04 Top Width (ft) 184.88 Top Width (ft) 61.62 123.26 Vel Total (ft/s) 1.66 Avg. Vel. (ft/s) 0.11 1.69 Max Chl Dpth (ft) 21.87 Hydr. Depth (ft) 0.59 13.43 Conv. Total (cfs) 331210.7 Conv. (cfs) 468.3 330742.3 Length Wtd. (ft) 61.79 Wetted Per. (ft) 61.78 132.75 Min Ch El (ft) 486.37 Shear (lb/sq ft) 0.00 0.06 Alpha 1.04 Stream Power (lb/ft s) 1563.99 0.00 0.00 Frctn Loss (ft) 0.00 Cum Volume (acre ft) 0.30 22.36 1.51 C & E Loss (ft) 0.00 Cum SA (acres) 0.73 2.34 0.64 Warning: Divided flow computed for this cross section. CROSS SECTION OUTPUT Profile # 100yr Page 21
295300 V FLOODSTUDY PREDEV.RPT E.G. Elev (ft) 509.91 Element Left OB Channel Right OB Vel Head (ft) 0.10 Wt. n Val 0.080 0.040 W.S. Elev (ft) 509.81 Reach Len. (ft) 69.67 61.78 67.50 Crit W.S. (ft) Flow Area (sq ft) 152.85 1851.44 E.G. Slope (ft/ft) 0.000147 Area (sq ft) 152.85 1851.44 Q Total (cfs) 4800.00 Flow (cfs) 53.57 4746.43 Top Width (ft) 204.55 Top Width (ft) 78.28 126.28 Vel Total (ft/s) 2.39 Avg. Vel. (ft/s) 0.35 2.56 Max Chl Dpth (ft) 23.44 Hydr. Depth (ft) 1.95 14.66 Conv. Total (cfs) 396257.3 Conv. (cfs) 4422.5 391834.9 Length Wtd. (ft) 61.90 Wetted Per. (ft) 78.62 136.15 Min Ch El (ft) 486.37 Shear (lb/sq ft) 0.02 0.12 Alpha 1.13 Stream Power (lb/ft s) 1563.99 0.00 0.00 Frctn Loss (ft) 0.01 Cum Volume (acre ft) 3.88 26.15 2.60 C & E Loss (ft) 0.01 Cum SA (acres) 4.06 2.47 0.78 CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 4 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 510.4 5.13 510.51 67.26 509.98 97.74 509.74 102.62 509.61 119.83 509.58 138.64 509.16 141.68 509.37 167.19 509.11 181.19 509.19 186.09 508.88 189.48 509.11 223.66 508.8 240.48 509.09 254.37 508.81 268.03 508.82 271.66 509.16 298.96 509.26 304.08 509.55 310.34 509.33 321.64 509.57 325.76 509.1 331.42 509.27 336.19 509.81 342.4 509.82 349.65 509.24 357.16 509.7 363.04 509.16 370.91 508.91 385.46 508.74 Page 22
295300 V FLOODSTUDY PREDEV.RPT 392.54 508.78 395.52 509.04 407.44 508.68 421.94 508.73 424.29 508.9 432.81 508.62 436.69 508.23 447.41 508.41 463.82 508.35 476.85 508.1 479 508.3 485.34 507.89 494.91 507.99 504.1 507.85 513.78 508.08 522.74 507.82 525.43 508.2 541.49 508.16 558.38 508.24 585.35 508.73 593.52 508.68 606.34 505.9 615.86 503.7 622.67 500.08 638.38 491.62 644.61 488.3 664.63 487.45 689.26 486.41 695.41 485.74 699.54 487.88 711.99 495.14 720.72 499.18 734.56 505.7 744.84 510.97 751.49 514.51 754.75 515.76 778.81 517.37 797.4 518.74 812.11 519.66 824.15 520.54 844.21 521.85 860.12 523.01 910.18 526.45 936.51 528.84 961.3 531.33 1005.59 535.49 1047.76 539.58 1087.58 543.58 1160.03 550.91 1192.8 554.32 1243.37 559.38 1270.2 561.95 1320.97 566.44 1342.18 568.24 1390.49 571.97 1424.93 574.4 1448.3 575.94 1466.35 577.05 1502.68 579.08 1528.89 580.47 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 593.52.04 751.49.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 593.52 751.49 231.59 237 251.64 0.6 0.8 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.27 Element Left OB Channel Right OB Vel Head (ft) 0.03 Wt. n Val 0.080 0.040 W.S. Elev (ft) 508.24 Reach Len. (ft) 231.59 237.00 251.64 Crit W.S. (ft) Flow Area (sq ft) 14.88 1946.09 E.G. Slope (ft/ft) 0.000051 Area (sq ft) 14.88 1946.09 Q Total (cfs) 2800.00 Flow (cfs) 0.62 2799.38 Top Width (ft) 231.83 Top Width (ft) 87.87 143.96 Vel Total (ft/s) 1.43 Avg. Vel. (ft/s) 0.04 1.44 Max Chl Dpth (ft) 22.50 Hydr. Depth (ft) 0.17 13.52 Conv. Total (cfs) 392555.4 Conv. (cfs) 86.9 392468.4 Length Wtd. (ft) 237.12 Wetted Per. (ft) 87.92 153.85 Min Ch El (ft) 485.74 Shear (lb/sq ft) 0.00 0.04 Alpha 1.01 Stream Power (lb/ft s) 1528.89 0.00 0.00 Page 23
295300 V FLOODSTUDY PREDEV.RPT Frctn Loss (ft) 0.01 Cum Volume (acre ft) 0.26 19.80 1.51 C & E Loss (ft) 0.00 Cum SA (acres) 0.61 2.15 0.64 Warning: Divided flow computed for this cross section. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 509.89 Element Left OB Channel Right OB Vel Head (ft) 0.07 Wt. n Val 0.080 0.040 W.S. Elev (ft) 509.82 Reach Len. (ft) 231.59 237.00 251.64 Crit W.S. (ft) Flow Area (sq ft) 481.65 2178.55 E.G. Slope (ft/ft) 0.000103 Area (sq ft) 481.65 2178.55 Q Total (cfs) 4800.00 Flow (cfs) 95.18 4704.82 Top Width (ft) 653.83 Top Width (ft) 504.76 149.07 Vel Total (ft/s) 1.80 Avg. Vel. (ft/s) 0.20 2.16 Max Chl Dpth (ft) 24.08 Hydr. Depth (ft) 0.95 14.61 Conv. Total (cfs) 471997.1 Conv. (cfs) 9359.4 462637.7 Length Wtd. (ft) 237.15 Wetted Per. (ft) 505.07 159.39 Min Ch El (ft) 485.74 Shear (lb/sq ft) 0.01 0.09 Alpha 1.40 Stream Power (lb/ft s) 1528.89 0.00 0.00 Frctn Loss (ft) 0.03 Cum Volume (acre ft) 3.38 23.30 2.60 C & E Loss (ft) 0.01 Cum SA (acres) 3.59 2.27 0.78 Warning: Divided flow computed for this cross section. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 3 Page 24
295300 V FLOODSTUDY PREDEV.RPT INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 511.38 26.07 510.8 46.39 510.75 55.22 510.93 65.75 511.5 82.62 511.35 137.77 511.42 171.51 511.31 188.19 511.47 218.47 511.42 243.81 511.61 253.2 510.83 265.96 510.26 298.03 509.62 324.97 509.52 342.13 509.79 371.55 510.83 437.55 510.46 450.86 510.31 461.34 509.78 479.23 508.53 497.57 507.63 530.5 507.32 545.19 507.99 556.77 504.88 570.95 500.65 578.18 494.94 585.03 488.37 586.01 488.26 645.41 486.96 646.68 488.19 659.09 499.5 664.93 504.43 666.5 504.45 691.7 504.91 706.11 504.8 724.26 506.84 727.99 506.67 732.84 507.36 744.43 508.05 749.56 508.11 756.55 508.84 776.83 510.3 795.39 512.07 815.24 514.77 819.95 514.73 833.23 517.63 852.96 520.69 865.12 523.18 880 526.85 884.24 527.33 908.75 535.77 919.1 540.87 923.57 542.26 948.67 552.58 966.01 558.2 968.6 558.78 979.98 559.3 997.49 562.18 1002.51 561.82 1018.69 559.61 1029.79 556.82 1033.19 558.88 1052.49 565.72 1056.83 566.96 1070.57 568.69 1085.26 571.49 1093.72 572.67 1107.83 573.48 1127.54 575.21 1174.36 576.58 1191.59 576.24 1203.42 576.39 1216.54 575.92 1229.05 574.48 1240.15 575.96 1246.8 576.19 1260.52 575.94 1265.7 576.26 1283.49 576.61 1295.98 576.17 1307.34 576.54 1315.87 578.46 1326.31 579.34 1334.66 579.22 1348.43 580.67 1361.75 581.71 1381.12 581.55 1386.16 581.27 1401.73 582.1 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 545.19.04 666.5.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 545.19 666.5 298.12 336.06 406.72 0.1 0.3 CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.26 Element Left OB Channel Right OB Vel Head (ft) 0.04 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 508.22 Reach Len. (ft) 298.12 336.06 406.72 Crit W.S. (ft) Flow Area (sq ft) 36.40 1777.72 199.34 E.G. Slope (ft/ft) 0.000055 Area (sq ft) 36.40 1777.72 199.34 Q Total (cfs) 2800.00 Flow (cfs) 3.60 2747.69 48.70 Top Width (ft) 265.08 Top Width (ft) 59.65 121.31 84.12 Page 25
295300 V FLOODSTUDY PREDEV.RPT Vel Total (ft/s) 1.39 Avg. Vel. (ft/s) 0.10 1.55 0.24 Max Chl Dpth (ft) 21.26 Hydr. Depth (ft) 0.61 14.65 2.37 Conv. Total (cfs) 377764.5 Conv. (cfs) 486.2 370707.5 6570.8 Length Wtd. (ft) 336.65 Wetted Per. (ft) 59.68 133.66 84.31 Min Ch El (ft) 486.96 Shear (lb/sq ft) 0.00 0.05 0.01 Alpha 1.21 Stream Power (lb/ft s) 1401.73 0.00 0.00 Frctn Loss (ft) 0.07 Cum Volume (acre ft) 0.12 9.67 0.93 C & E Loss (ft) 0.14 Cum SA (acres) 0.21 1.43 0.39 Warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 509.86 Element Left OB Channel Right OB Vel Head (ft) 0.08 Wt. n Val 0.080 0.040 0.080 W.S. Elev (ft) 509.78 Reach Len. (ft) 298.12 336.06 406.72 Crit W.S. (ft) Flow Area (sq ft) 157.34 1966.40 343.64 E.G. Slope (ft/ft) 0.000110 Area (sq ft) 157.34 1966.40 343.64 Q Total (cfs) 4800.00 Flow (cfs) 43.18 4607.41 149.41 Top Width (ft) 359.13 Top Width (ft) 134.77 121.31 103.05 Vel Total (ft/s) 1.95 Avg. Vel. (ft/s) 0.27 2.34 0.43 Max Chl Dpth (ft) 22.82 Hydr. Depth (ft) 1.17 16.21 3.33 Conv. Total (cfs) 456907.8 Conv. (cfs) 4109.9 438575.5 14222.4 Length Wtd. (ft) 335.70 Wetted Per. (ft) 134.86 133.66 103.31 Min Ch El (ft) 486.96 Shear (lb/sq ft) 0.01 0.10 Page 26
295300 V FLOODSTUDY PREDEV.RPT 0.02 Alpha 1.39 Stream Power (lb/ft s) 1401.73 0.00 0.00 Frctn Loss (ft) 0.12 Cum Volume (acre ft) 1.68 12.02 1.60 C & E Loss (ft) 0.12 Cum SA (acres) 1.89 1.54 0.48 Warning: Divided flow computed for this cross section. Warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for additional cross sections. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 2 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 509.47 9.87 509.5 18.64 509.78 27.1 509.88 40.2 508.99 60.13 508.24 76.23 507.9 86.86 508.01 101.15 508.42 111.75 508.62 124.8 508.74 138.13 508.64 157.13 508.63 176.34 508.27 188.87 508.35 209.53 508.84 227.4 508.98 239.37 508.95 251.44 508.82 275.65 508.34 290.57 508.15 307.78 507.82 319.66 507.67 340.3 507.63 361.4 507.4 367.28 507.14 376.16 507.02 389.82 507.23 398.39 507.44 406.37 507.4 418.05 507.15 433.78 507.11 442.64 506.9 449.7 506.84 458.63 506.99 472.47 506.85 479.4 506.48 484.1 506.18 498.8 505.67 506.34 504.23 519.7 501.02 522.16 500.14 525.14 499.86 635.01 513.81 654.52 524.36 656.65 525.52 659.36 525.67 671.47 526.03 687.97 526.74 693.45 526.82 696.29 527.27 711.85 528.11 724.15 528.45 731.1 528.25 752.64 528.43 773.31 529.27 786.93 529.74 793.71 531.05 810.31 535.07 814.79 535.81 817.23 536.93 822.64 538.53 833.82 543.6 839.18 544.08 842.39 544.82 854.61 547.2 870.34 549.52 883.66 552.92 893.65 555.83 900.67 555.95 926.7 558.7 928.01 558.97 944.42 556.49 950.83 555.42 956.45 553.4 959.59 553.87 975.27 555.1 986.08 557.7 989.27 559.07 1000.13 564.27 1004.19 564.61 1013.87 565.11 1038.09 566 1074.99 567.59 1101.73 568.61 1150.26 569.98 1171.85 570.48 1184.3 570.71 1218.9 571.65 1234.72 572.05 Manning's n Values, num = 3 Sta. Value Sta. Value Sta. Value 0.08 479.4.04 659.36.08 Bank Sta: Left Right Lengths: Left Channel Right Coeff Contr. Expan. 479.4 659.36 221.79 259.09 312.68 0.1 0.3 Page 27
295300 V FLOODSTUDY PREDEV.RPT CROSS SECTION OUTPUT Profile # 10yr E.G. Elev (ft) 508.05 Element Left OB Channel Right OB Vel Head (ft) 1.48 Wt. n Val 0.080 0.040 W.S. Elev (ft) 506.57 Reach Len. (ft) 221.79 259.09 312.68 Crit W.S. (ft) 506.57 Flow Area (sq ft) 0.08 287.11 E.G. Slope (ft/ft) 0.016823 Area (sq ft) 0.08 287.11 Q Total (cfs) 2800.00 Flow (cfs) 0.02 2799.98 Top Width (ft) 100.26 Top Width (ft) 1.68 98.59 Vel Total (ft/s) 9.75 Avg. Vel. (ft/s) 0.30 9.75 Max Chl Dpth (ft) 6.71 Hydr. Depth (ft) 0.04 2.91 Conv. Total (cfs) 21587.5 Conv. (cfs) 0.2 21587.3 Length Wtd. (ft) 259.09 Wetted Per. (ft) 1.68 99.71 Min Ch El (ft) 499.86 Shear (lb/sq ft) 0.05 3.02 Alpha 1.00 Stream Power (lb/ft s) 1234.72 0.00 0.00 Frctn Loss (ft) 4.34 Cum Volume (acre ft) 0.00 1.71 C & E Loss (ft) 0.00 Cum SA (acres) 0.00 0.58 Warning: The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations. Warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. This may indicate the need for additional cross sections. CROSS SECTION OUTPUT Profile # 100yr E.G. Elev (ft) 509.61 Element Left OB Channel Right OB Vel Head (ft) 1.33 Wt. n Val 0.080 0.040 Page 28
295300 V FLOODSTUDY PREDEV.RPT W.S. Elev (ft) 508.28 Reach Len. (ft) 221.79 259.09 312.68 Crit W.S. (ft) 508.28 Flow Area (sq ft) 191.02 467.73 E.G. Slope (ft/ft) 0.010015 Area (sq ft) 191.02 467.73 Q Total (cfs) 4800.00 Flow (cfs) 326.01 4473.99 Top Width (ft) 351.93 Top Width (ft) 239.84 112.09 Vel Total (ft/s) 7.29 Avg. Vel. (ft/s) 1.71 9.57 Max Chl Dpth (ft) 8.42 Hydr. Depth (ft) 0.80 4.17 Conv. Total (cfs) 47965.0 Conv. (cfs) 3257.7 44707.3 Length Wtd. (ft) 257.82 Wetted Per. (ft) 239.88 113.32 Min Ch El (ft) 499.86 Shear (lb/sq ft) 0.50 2.58 Alpha 1.61 Stream Power (lb/ft s) 1234.72 0.00 0.00 Frctn Loss (ft) 3.13 Cum Volume (acre ft) 0.49 2.63 C & E Loss (ft) 0.07 Cum SA (acres) 0.61 0.63 Warning: The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations. Warning: Divided flow computed for this cross section. CROSS SECTION RIVER: Fivemi REACH: 1 River Station: 1 INPUT Description: Station Elevation Data, num = 90 Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. Sta. Elev. 0 511.66 25.51 510.16 40.09 509.49 55.83 509.2 90.24 509.54 99.3 509.49 129.65 508.79 154.27 508.09 177.32 507.54 187.51 507.2 197.8 507.17 221.82 508.15 231.75 508.35 243.14 508.83 265.56 508.84 293.95 508.7 306.41 508.52 317.84 508.64 334.05 507.65 347.74 507.14 351.46 506.35 359.68 506.52 365.13 506.14 395.49 505.84 425.34 505.62 470.54 505.83 486.8 505.72 499.65 505.84 511.39 505.77 527.95 506.08 547.82 505.9 577.77 505.15 586.85 504.62 592.7 504.13 597.06 502.91 Page 29