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HomeMy WebLinkAboutWPO202200037 Calculations 2022-09-12® Stantec August 11, 2022 File: 203443600 Stantec Consulting Services Inc. 5209 Center Street, Williamsburg VA 23188-2680 o� �PXT H OF � f%� ANDREW J. o TIEFENBACK z U a Lie. No. 60845 Z08/12022 61SIONAl O''5 Reference: Innisfree Stream Mitigation Bank Phase 2 — Stormwater and Hydraulic Calculations This document serves to summarize stormwater and hydraulic calculations for the Innisfree Stream Mitigation Bank Phase 2 Project (Project). The project includes stream and wetland restoration for mitigation purposes. STORMWATER MANAGEMENT WATER QUALITY (VRRM) While this project is a stream restoration and buffer enhancement project and does not include additional impervious area, Stantec evaluated the site using the Project site with the new development spreadsheet for the Virginia Runoff Reduction Methodology (VRRM) to establish that no pollutant reductions are required for the project for Water Quality Compliance under 9VAC25-870-65. The site is currently agricultural land and portions will continue to be used for crop -production and pasture. However, the stream and wetland restoration areas and adjacent vegetated buffers will be protected in perpetuity under the terms of the Mitigation Banking Instrument (MBI). For this analysis, an overlay analysis was performed in ArcGIS to determine the Landcover and Soil HSG within the project Limits of Disturbance (LOD) in proposed condition. Soil data was obtained from the USDA SSURGO database and Lndcover was determined through aerial imagery and the proposed planting plan. All areas within the LOD are to be vegetated with suitable native plantings or seeding in proposed condition, therefore Forest/Open Space was selected as the VRRM Land Cover. The VRRM Summary for this analysis is presented in Figure 1. The spreadsheet indicates that TP Load Reduction is not required for this project. Design with community in mind August 11, 2022 Page 2 of 4 Reference: Innisfree Stream Mitigation Bank Phase 2 — Stormwater and Hydraulic Calculations DEQ Virginia Runoff Reduction Method New Development Compliance Spreadsheet - Version 3.0 BMP Design Sperrfications list: 2013 DraftStds & Specs Site Summary Project-ritle: Innisfree Stream Mitigation Bank Phase2 Date: 44784 Total Rainfall = 43 inches Site land Cover Summary Asdls BSoils CSals DShcs Trials %ofTotal Forest/Open(acres) 0.00 9.96 0.00 0.D0 9.96 too Managed Turf (acres) 0.00 0.00 0.00 0.00 0.00 0 Impervious cover (acres) 0.00 0.00 0.00 0.00 0.00 0 9.9b 100 Site TV and Land Cover Nutrient loads Sfte Rv OA3 Treatment Volume ffel 11085 TP Load f Ib/yr) 0.68 TN Load (Ib/yr) 1 428 Total TP Load Reduction Required (Ib/yr) -3.40 TP LOAD REDUCTION NOT REQUIRED Site Complianoe Summary Total Runoff Vdume Reduction (ft) 0 Total TP Load Reduction Achieved (lb/yr) OAO Total TN Load Reduction Achieved (lb/yr) 0.00 Remaining Post Development TP Load 0.63 (lb/yr) Remaining TP Load Reduction (lb/yr) 0_pn Required Figure 1: VRRM Summary WATER QUANTITY TARGETTP REDUCTION EXCEEDED BY 3.4 LB/YEAR — This project is a permittee-responsible stream and wetland mitigation project. The work proposed includes temporary impacts to perform stream and wetland restoration and enhancement and preservation of natural resources through encumbered buffers inside and outside the proposed limits of disturbance. No impervious cover is proposed as part of this project. Hydrologic characteristics of the project site will improve because of the work and adjoining riparian preservation efforts, providing an effective and encumbered forest/open space condition following construction and restoration activities. Conservatively, Stantec assumed pre- to post- peak discharges remain the same as summarized on Sheets 43-44 of the Project Construction Document, regardless of limited incidental detention effects of the restoration activities that may be ultimately realized or effects from restoration to a stable Woods in good condition land use. Design with community in mind August 11, 2022 Page 3 of 4 Reference: Innisfree Stream Mitigation Bank Phase 2 - Stormwater and Hydraulic calculations While it is our understanding of precedent in past projects that channel and flood protection analyses in the context of stormwater management are not required for stream restoration projects (consistent with other similar linear activities under applicable DEQ Guidance Memo 15-2003), Stantec has evaluated each restoration reach of the project in HEC-RAS and used the hydraulic results to identify appropriate bank treatments and channel bed material requirements of the subject reaches. Additionally, each modeled reach extends downstream and upstream (where appropriate) a minimum of 200 feet to show that hydraulic characteristics of the stream channel upstream and downstream of the restoration work are not adversely affected. The HEC-RAS modeling results are summarized in this Calculation Document. Stantec has also provided a hydraulic summary narrative with this submittal. In sum, our due diligence review of project hydraulics, providing stabilization treatments within the design, providing an effective encumbered forest/open space condition postconstruction, conformance with the construction general permit conditions, and conformance with the project SWPPP should continue to give reasonable assurance that a requirement for the preparation and implementation of a stormwater management plan elements such as channel of flood protection calculations may be waived in this instance consistent with past precedent and DEQ Guidance Memo 15-2003. HYDRAULIC MODELING Stantec developed existing and proposed condition hydraulic models for each reach of this project to inform structure sizing, channel lining, and to evaluate floodplain/hydraulic impacts related to the design. The hydraulics of the stream corridor were analyzed with U.S. Army Corps of Engineers River Analysis Software (HEC-RAS 6.1) using one-dimensional energy balance equations to solve for hydraulic flow characteristics including water surface elevation (WSE), shear, average velocities, and the distribution of velocities in the channel. The geometry of the existing channel was extracted from an AutoCAD Civil3D surface based on field -surveyed topography. Similar to the existing channel geometry, the geometry of the proposed channel was extracted from an AutoCAD Civil3D surface. This proposed grading was integrated into the existing surface. The Manning's roughness coefficients for the channels were evaluated based on conditions observed in the field. Cowan's method and engineering judgement were applied to select an appropriate reach -specific roughness coefficients of 0.035 to 0.05 in existing condition and 0.045 in the proposed condition for the in -channel portions of the model. The overbank roughness coefficient was set at 0.06 — 0.07 based on observed reach -specific vegetated conditions. The downstream boundary condition Reach 61 assumed a normal depth condition based on a downstream channel slope measured on survey topography. The downstream boundary condition for Reach 8F assumed a constant elevation based on modeled peak elevations for the downstream impoundment the stream outfalls into. All other reaches were modeled using downstream reaches as their downstream boundary conditions. NRCS methodology -based flows calculated for the hydrologic analysis were used to develop sizing recommendations for streambed substrate and determination of scour depths for grade control structures. Modeling demonstrates that erosive velocities and shear stresses are present in the existing condition in various storm events. This is corroborated by field -observed eroded channel banks throughout the length of the proposed project. Where erosive velocities are exhibited in proposed condition, the model has been used to locate and size appropriate linings and grade controls. A 10-year design storm was used in sizing stabilization practices. The attached exhibits show model configurations in plan view and hydraulic modeling results are shown in the attached output tables. Design with community in mind August 11, 2022 Page 4 of 4 Reference: Innisfree Stream Mitigation Bank Phase 2 - Stormwater and Hydraulic Calculations Regards, Stantec Consulting Services Inc. Andrew Tiefenback PE Civil Engineer Phone: 757-358-9080 andrew.tiefenback@stantec.com Design with community in mind d MAINSTEM 1 + , r s^ 5 Stantec Stontec Consulting Services Inc. 5209 Center Street Williamsburg VA 23188-2680 Tel: (757) 22D 6869 w ,stontea.com LEGEND: HEC-RAS ALIGNMENT HEC-RAS CROSS SECTION FEMAZONE"A" N (k 0 200 400 GRAPHICAL SCALE (FEET) 1"=200' 7+03 Client/Project itle INNISFREE STREAM HEC-RAS EXHIBIT MITIGATION BANK PHASE 2 Revision Date 2022.08.11 Project No. Reference Sheet Figure No. 203443600 2 d .z• �X WA R8F r MAINSTEM ' + #A , , � • -2+d6 -6+35 -0+60 -2+16 1+44 * -5+09 -1+78� 1+83 -2+g0 r - RX�a 1 - R8I 5+84 -15+88 MATCHLINE FIGURE 2 -6+21 ° LEGEND: N Client/Project Title INNISFREE STREAM HEC-RAS EXHIBIT Stantec HEC-RAS ALIGNMENT � MITIGATION BANK PHASE 2 HEC-RAS CROSS SECTION te Stontec ConsultingServices Inc. Revision Dal 0 200 400 2022.08.11 5209 Center Street FEMAZONE"A" Williamsburg VA 23188-2680 Project No. Reference Sheet Figure No. iel: ps7j 22P6869 GRAPHICAL SCALE (FEET) 1"=200' 203443600 3 .,,i.nieC.com EXISTING WINSTEM River Sta Profile G Total Min Ch El W.S. Elev E.G. Slo Val Chnl Rm Area To Wdth Froude # Chl an Power Total cls fl ft Nft W. s fl ft Ihlfts 28T.M 1 Year 13.14 M9.12 949.55 0.0379TT 2.36 5.56 21.30 0.82 1.46287.M 2 Year 25.66 M9.12 M9.6T 0.OM555 3.15 8.28 26.23 0.93 2.T228].M 10 Year T3.48 M9.12 950.01 0.0339T2 4.30 19.69 40.92 0.91 IN28T.M 25 Year 112.W M9.12 950.23 0.02T02T 4.62 30.93 63.43 0.85 32.1143M 2.98 28T.64 100 Year 189.20 949.12 00.50 0.025257 5.30 50.01 T6.25 0.86 3.91 129.M 1 Year 13.14 Mi.]6 942.2T 0.0%6 4 3.10 4.23 14.39 101 3.18 129.M 2Year 2566 M1.]6 942.N 0.046370 3.68 T.02 17.28 0.98 42T 129.M 10 Year TS48 M1.]6 942.89 0.030T86 4.80 18.39 35.]8 0.90 3.92 129.M 25 Year 112.26 Mt.]6 943.16 0.024203 5.0T 30.32 51.18 0.83 IM 129.M 100 Year 189.20 961]6 M3.48 0.023159 5.83 48.29 62 111 0.85 4.38 50.M 1 Year 13.14 937.98 938.63 G.OM968 2.60 5.06 11.43 0.69 0.63 1.63 50.26 2Year 25.M 937.98 9M.74 O.MS 4.07 6.32 12.M 0.99 1.46 5.74 50.26 10Year 73.48 937.98 939.26 0.024555 4.76 20.88 39.56 0.8P 1.58 2.83 50.M 25 Year 112.26 937.98 939.48 0.024861 5.40 30.09 46.M 0.85 1.92 3.74 50.M 100 Year 189.20 937.98 939.80 0.024509 6.28 48.69 56.07 0.88 2.40 5.14 -19.14 1Year 13.14 935.20 936.09 0.0M571 4M 3.08 569 102 1.M 6.99 -19.14 2Year 2566 935.20 936.49 0.023322 399 9.40 28.04 013 1.20 1.30 -19.14 10 Year 7148 935.20 936.92 0.022650 5.06 2ZM 53.02 017 1.70 1.93 -19.14 25 Year 112.26 9M.20 937.09 0.024965 5.T 37.19 60.85 0.82 2.12 2.M -19.14 100 Year 189.20 935.20 937.35 0.028M7 6.82 53.M 71.60 0.90 2.82 4 M -89.82 1Year 13.14 930AO 931]1 0.027960 3.90 3.37 IM 0.65 1.21 4.72 -89.82 2Year 25.E 930.40 932.21 0.039871 5.18 4.97 4A8 O.TT 2.03 9.51 -89.82 10Year 73.48 930.40 933.14 0.022449 5.0 23.41 37.75 0.63 1.90 2.55 -89.82 25 Year 112.26 930.40 933.37 0.024889 6.12 33.M 46.12 0.67 2.M 3.M -89.82 100 Year 189.20 930.40 933.69 0.0283M T06 49.M 57.15 0.73 2.97 5.59 -14947 1Year 13.14 928.]] 929.51 0.051220 3.82 1" T.74 101 1.37 521 -149.47 2Year 25.66 928.77 929]7 0.M4353 4.52 5.75 10.25 too 1.70 6.67 -149.47 10 Year 73.48 928]] 930.42 0.022702 5.17 20.62 35.68 0.80 1.76 2.88 -149.47 25 Year 112.M 928.77 930.68 0.021976 575 31.19 45.73 081 2.05 3.33 -149.47 100 Year 189.20 928.]] 931.05 0.020%2 648 50.65 59.03 082 2.42 4.16 -215.09 1 Year 13.14 924.91 925.60 0.03M24 3.33 3.M TM 0.80 0.98 126 -215.09 2Year 25.66 924.91 925.M 0.OW059 445 5.79 8.28 0.9P 1.58 6.0 -215.09 10Year 73.48 924.91 926.56 0.026478 6.02 14.33 16.88 0.88 2.30 6.93 -215.09 25 Year 112.26 924.91 926.95 0.02M10 8.M MAS 22.58 0.86 2.58 7.03 -215.09 100 Year 189.20 924.91 927.59 6017TT4 7.05 42.24 42.61 0.79 2.M 4.M -246.39 1 Year 13.14 923.80 924.35 0.052309 3.62 3.63 9.M 1.01 1.27 4.59 -246.39 2Year 2566 923.80 924.58 0.M5339 441 5.85 10.41 100 1.65 B.72 -246.39 10 Year 7148 923.80 925.M 0.027824 561 15.M 22.25 0.89 2.09 5.59 -246.39 25 Year 112.26 923.80 925.63 0.018931 560 29.57 43.81 0.F 1.89 2.99 -246.39 100 Year 189.20 923.80 926.05 0.017525 6.25 51.89 M.58 0.76 2.19 3.17 -306.70 1 Year 14.74 920.98 921.65 0.030579 4A3 3.57 B.71 1.00 0.97 4.00 -306.70 2 Year 28.45 920.98 921.94 0.027368 5.03 5.08 7.83 1.00 1.27 5.83 -3W.70 10 Year 82.09 920.98 922.80 0.014621 6.03 19.38 25.48 0.83 1.42 2.87 -3W.70 25 Year 124.98 920.98 923.21 0.012987 6.57 31.74 37.67 0.81 1.57 2.M -3W.70 100 Year 210.M 920.98 M3]8 0.010772 T06 62.32 69.42 0.F 1.67 2.M 440.85 1Year 14.T4 916.40 916.81 0.011517 141 1905 118.25 0.M 0.15 0.09 4 OS5 2Year 2645 916.40 916.81 0.M2906 273 1905 11825 105 0.57 0.M 4 OS5 10 Year 8209 916.40 916.93 0.057499 4.30 MA9 128.M 1.31 1.20 2.29 4 OM 25 Year 124.98 916.40 917.02 0.0559M 4.93 4566 13369 1.M 1.47 327 44085 100 Year 210.56 916.40 917.15 0.0M989 &B7 63.67 13668 1.39 1.90 528 -509.M 1 Year 14.T4 912.99 913.50 0.036M7 2.99 4.0 18.M 1.01 0.62 1.87 -509.M 2Year 28.0 912.99 913.86 0.031170 3.51 8.17 M.68 0.99 0.76 2.M -509.M 10Year 82.09 912.99 914.06 0.022490 IT/ 19.63 M.37 0.M 1.11 3.35 -509.M 25 Year 124.98 912.99 914.29 0.021011 5.M 28.03 40.89 0.95 1.33 4.00 -509.M 100 Year 210.56 912.99 914.72 0.014472 &71 57.67 91.43 0.M 1.31 2.08 -M3.M 1 Year 14.74 910.M 911.07 0.031686 4.06 3.63 722 101 0.95 3.87 -MSM 2Year 28.45 910.M 911.35 0.0279M 4.92 5.81 8.28 101 1.23 569 -MSM 1 10 Year 8209 910.M 912.18 0.010122 4.M 32.M 60.88 069 0.M 0.M -MI" 25 Year 124.98 910.M 912.37 0.011998 5.74 M.22 65.01 O.76 1.25 1.41 -M3.M 100 Year 210.M 910.M 912.68 0.013670 6.81 65.66 74.37 0.83 1.68 2AO 393.91 1 Year 14.74 908.69 909.36 0.032160 3.67 4.01 9.57 1.W 0.82 IM -593.91 2 Year 28.45 908.69 909.59 0.027482 4.45 6.43 10.75 0.99 1.05 4.40 -593.91 10Year 82.09 908.69 910.29 0.014555 5.30 M.16 35.47 0.81 1.17 2.08 -593.91 25 Year 124.98 9D8.69 910.58 0.013852 5.91 33.76 43.M 0.82 1.36 2.45 -593.91 100 Year 210.56 908.69 910.99 0.014015 6.92 M.87 M.99 OM 1.73 3.10 -635M 1Year 1474 906.18 907.12 0.025233 1% 4.15 T.97 087 0.74 262 -635 M 2 Year 28.45 906.18 907.38 0.025966 4.M 6.25 8.37 0.92 1.07 4.83 -635.M 10 Year 82.09 906.18 908.23 0.010290 4.74 31.04 59.38 0.66 0.91 0.86 -635M 25 Year 124.98 906.18 908.43 0.011852 5.50 43.57 65.20 012 1.17 1.38 -635M 100 Year 210.% 906.18 908.73 0.013792 6.57 M.29 73.74 080 1.59 240 -709.M 1 Year 14.74 904.75 9M]0 0.M6812 5.21 12.33 0.00 3.38 -709.M 2Year 28.45 904.75 9M.% 0.048347 i.76 10.15 28.76 0.98 0.30 2.0 -709.26 10Year 82.09 904.75 905.28 0.0%894 4.24 23.09 48.53 1.29 1.18 5.90 -709.26 25 Year 124.98 9 .75 905.42 0.W1781 5.52 29.89 M.M 1.42 1.78 8.92 -70926 100 Year 210.% 904.75 905.66 BOM038 6.83 43.33 57.42 1.43 2.37 12.14 -9M.18 1 Year 14.74 896.04 896.M 0.036589 2.90 508 51.35 1.00 0.60 1.73 -904.18 2Year 28.45 8M.M 896.82 0.036215 3.18 8.M 67.M 1.02 0.68 2.17 -9M.18 10 Year 8209 8%.M 897.14 0.0318M 3.78 2tM 118.33 1.01 G.W 3.M -904.18 25 Year 124.98 896.M 897.29 0.030177 4.23 29.M 1M.07 1.02 1.00 3.92 -904A8 100 Year 210.56 896.M 89757 0.016164 4.11 70.18 165.70 0.80 0.82 1.25 EXISTING WINSTEM River Sta Profile G Total Min Ch El W.S. Elev E.G. Slo Val Chnl Rm Area To W th Froude # Chl Power Total cls fl ft wft We s fl ft Ihls -1063.91 1 Year 51.45 887.69 888.58 0.019080 3.22 1].06 37.22 0.78 1.61 -1063.91 2Year 106.54 887.69 888.86 0.019244 3.84 28.90 48.8] 0.82 2.6] AW3.91 10 Year 331.91 MT69 8 Al 0.021339 5.61 64.24 81.27 0.94 5.3] AW3.91 25 Year 51].14 88].69 889.72 0.020423 6.4] 91.58 94.83 0.96 MS�arChaaan 6.8] -1063.91 100 Year 890.86 88].69 890.23 0.018938 ].64 145.36 122.0] 0.9] 8.54-1234.67 1 Year 51.45 882.90 884.39 0.030125 4.18 12.31 22.90 1.01 4.10 -1234.6] 2Year 106.84 882.90 8M.73 0.028899 4.]0 22.86 38.5] 1.02 488-1234.6] 10 Year 331.94 882.90 885.51 0.017677 6.22 64.26 69993 0.91 5.16 -1234.6] 25 Year 517.14 882.90 885.% 0.015283 692 100.31 91.93 0.89 5.30-1234.67 100 Year 890.86 882.90 886.5] 0.01440] 8.10 163.59 114.45 0.90 6.93 -1418.20 1 Year 51.45 8J .18 878.01 0.027582 4.84 10.0 14.61 1.W 1.20 5.79 -1418.20 2Year 106.51 8T/.18 878.46 0.024048 6.11 17.50 15]1 1.00 1.64 9.% -1418.20 10Year 331.94 8T.18 879.89 0.013623 7.88 52.71 36.92 0.86 2.08 ].36 -1418.20 25 Year 517.14 8J .18 8W.72 0.Ol W7O 8.38 94.60 69.28 0.80 2.15 4.87 -1418.20 100 Year 890.86 8T.18 881.68 0.009323 9.25 183.11 114.% 0.78 2.41 4.46 -1587.99 1Year 5145 8]2.0] 873.02 0.028487 461 11.17 17.25 101 1.12 5.16 -1587,99 2Year 106.54 872.07 873.43 0.024362 579 1843 18.32 100 1.52 8.50 -1587,99 10 Year 331.94 872.07 874.64 0.01720 8.18 42.T 21.91 0.96 2.34 15.29 -1587,99 25 Year 517.14 872.07 875.59 0.011178 8.34 81.25 52.02 OS2 2.16 6.63 -1587,99 100 Year 890.86 872.07 876.52 0.011227 9.90 132.34 %38 0.86 2.80 10.11 -1664.13 1Year 97.21 869.41 8]0.8] 0.023256 509 19.11 21.35 0.95 1.24 6.28 -1664.13 2Year 199.87 869.41 871.59 0.014003 5.72 35.01 22.49 0.80 1.30 7.18 -1664.13 10Year 612.37 869.41 873.36 0.009874 7.91 100]3 96.96 0.76 1.93 3.T -1664.13 25 Year 01.45 86941 874.18 0.007984 8.22 196.42 125.58 0.71 1.94 3.67 -1664.13 100 Year 1630.08 869.41 874.94 0.009467 10.02 294.78 131.62 0.80 2.73 7.12 -1738,85 1 Year 97.21 867.91 869.52 0.014592 5.07 19A6 14.81 019 1.10 5.56 -1738,85 2Year 199.87 861.91 870.12 0.018269 6.98 28.75 17.03 0.92 1.87 12.25 -1738.85 10 Year 612.37 867.91 872.20 0.009165 8.27 118.01 82.99 0.]4 2.03 4.10 -1738.85 25 Year 951.45 867.91 872.91 0.009381 9.36 184.24 1 W.46 O T 2.46 5.21 -1738,85 100 Year 1630.08 861.91 873.90 0.009470 10.71 W1.95 129.18 08O 3.01 7.31 -1853.17 1 Year 97.21 865.54 867.22 0.023921 6A2 15.89 13.T 1.00 1.64 10.01 -1853.17 2Year 199.87 865.54 867.98 0.020197 6.65 30.95 29.01 0.97 1.78 6.42 -1853.17 1OYear 612.37 865.54 869.47 0.010423 ].61 136.83 105.73 0.78 1.85 3.13 -1853.17 25 Year 01.45 865.54 W9.98 0.011438 8.86 194.20 119A6 0.84 2.38 5.65 -1853.17 100 Year 1630.08 885.54 870.76 0.012352 10.54 295.53 139.94 0.90 3.15 8.91 -1988.69 1Year 9721 863.00 864.82 0.013725 5.02 19.37 14.87 0.]] 1.06 5.32 -1988.69 2 Year 199.87 863.00 865.45 0.010258 5 66 59.14 87.30 072 1.18 1.45 -1988,69 10 Year 612.37 863.00 866.31 0.012938 8.16 149.53 117A9 086 2.17 4A9 -1988.69 25 Year 951.45 863.00 866.81 0.013925 9.38 208.40 132.53 0.91 2.72 820 -1988.69 100 Year 163008 863.00 867.52 0.015016 11.10 310.68 155.30 0.98 3.57 9 ]] -2186.38 1 Year 97.21 859.]] 861.39 0.030603 4.25 22.86 41.95 1.02 1.01 4.30 -2166.38 2Year 199.87 859]] W1]4 0.024921 4.97 42.38 75.41 0.98 1.21 4.04 -2166.38 10 Year 612.37 859.T W2.50 0.015143 6.05 141.M 166.64 OA5 1.M 3.44 -2166.38 25 Year 951.45 859.]] 862.83 0.015701 7.00 201.42 1%.31 0.90 1.81 4.71 -2166.38 100 Year 1630.08 859.]] 863.39 0.014368 7.95 328.17 255.85 0.90 2.14 5.68 -2352.58 1Year 9721 855.00 856.91 0.016898 4SO 20.27 19.37 083 1.04 5.01 -2352.58 2 Year 199.87 855.00 857.55 0.012857 570 44.03 64.73 0.18 1.26 2.43 -2352.58 10 Year 612.37 855.00 858.62 0.009551 6.84 161.25 162 69 073 1.54 2.22 -2352.58 25 Year 951.45 855.00 859.01 0.010528 ]84 238.52 231.15 018 1.94 261 -2352.58 100 Year 1630p8 855.00 859.68 0.008880 821 482.16 488.43 014 1.99 1.84 -2466.58 1 Year 97.21 853.97 854.49 0032130 IN 42.14 169.21 1.02 0.86 1.15 -2466.58 2Year 199.87 853.97 854.63 O.W0183 4.85 68.26 211.0 1.17 1.32 2.W -2466.58 10Year 612.37 853.97 854.98 0.041179 6.53 158.36 296.94 1.27 2.07 5.28 -2466.58 25 Year 951.45 853.97 855.20 0.038022 7.35 233.67 373.75 1.27 2.42 6.03 -2466.58 100 Year 1630.08 853.97 855.48 0.036892 8.50 346.47 411.88 1.30 3.00 9.09 -2583.58 1Year 9721 850.96 851.34 0.013031 196 61.86 159S2 0.61 0.25 049 -2583.58 2Year 199.87 850.96 851.52 0.016375 2.86 9304 179.49 0.]3 0.48 1.14 -2583.58 10 Year 612.37 850.96 852.10 0.013927 4.18 213.78 242.03 0.16 0.81 2.19 -2583.58 25 Year 951.45 8W.96 852.37 0.015638 5.23 289.32 290.64 0.84 1.17 3.19 -2583.58 100 Year 1630.08 8W.96 85284 0.013051 5.96 430.50 303.87 0.81 1.35 4.W -2081.05 1 Year 97.21 848.94 850.05 0.012235 3.2] 55.63 143.22 0.67 0.54 0.51 -2681.05 2Year 199.87 848.94 850.39 0.008742 2.87 109.11 1]].81 0.58 0.41 0.61 -2681.05 10Year 812.37 848.94 850.95 0.010305 3.97 229.42 235.28 0.67 0.70 1.66 -2681.05 25 Year 01.45 848.94 851.37 0.007655 4.25 330.94 24373 0.61 0.71 1.85 -2681.05 100 Year 1630.08 848.94 852.11 0.005461 4.67 517.71 259A8 0.55 0.76 2.13 -2881.92 1Year 109.00 844.26 846.05 0.024337 625 1T4 14.63 101 1.70 10.63 -2881.92 2Year 223.14 844.26 846.81 0.0211% 7.61 29.41 17.19 1.00 2.21 15.78 -2881.92 10 Year 680.65 844.26 848.59 0.008322 7.54 169.76 135.72 0.70 1.73 2.57 -2881.92 25 Year 105419 844.26 849.05 0.009448 8.11 235.73 151.37 076 2.21 4.06 -2881.92 100 Year 180257 844.26 849.70 0.011799 10.74 341.40 18090 087 3.20 TM -3018.T 1Year 109.00 841.19 843.08 0.012388 503 21.69 14.98 0.74 1.04 521 -3018.T 2 Year 223.14 841.19 843.62 0.020201 ].24 30.89 18.81 0.97 2.02 13.91 -3018.T 10Year 680.65 841.19 845.71 0.008121 7.78 162.82 142.% 0.70 1.80 2.39 -3018.T 25 Year 1054.79 84t.19 MOM 0.007929 8.50 283.31 117.15 0.71 2.M 2.92 -3018.T/ 100 Year 1802.57 "1.19 847.03 0.009218 10.11 399.15 204.28 0.79 2.75 5.03 -3144.50 1 Year 109.00 838.88 840.76 0.022813 6.34 17.19 13.52 0.99 1.71 10$1 -3144.50 2Year 223.14 838.88 841.]] 0.012659 6.48 4 A5 64.25 080 1.53 2.70 -3144.50 10 Year 680.65 838.88 842.% 0.010050 7.84 185.39 157.60 0.]] 1.92 2.69 -3144.50 25 Year 105479 838.88 843.43 0.010806 889 264.35 1]9]0 081 2.36 3.93 -3144.50 100 Year 1802.57 838.88 844.07 0.012352 10.57 387.89 205.08 0 89 3.16 674 -3255.98 1 Year 109.00 836.73 838.61 0.017898 5.83 19.35 14.99 0.87 1.35 7.00 -3255.98 2Year 223.11 838.]3 839.25 0.020811 ].80 29.% 19.04 0.99 2.20 14.15 -3255.98 i 10Year W65 838]3 w 9 0.009M7 1 ].8] 1 171AO 1 1.92 3.13 -3255.98 1 25 Year 1 105119 1 836.73 1 841.25 1 0.011586 1 9.28 1 234.95 1 14ZS0 1 0.84 1 2.% 5.10 -3255.98 1 100 Year 1 1802.57 1 836.73 1 842.01 I 0.012281 1 10.80 1 3%.79 1 174.19 1 0.89 1 3.26 7.85 EXISTING MAINSTEM River Star Profile Q Total Min Ch El W.S. Elev E.G. S Val Chnl Flow Area To Wtlih Froude # Chi lcfs ft fl Nfl Ns ft fl-3330.74 1 Year 109.00 835.]2 831.M 0.017565 4.23 25.19 31.89 0.83 -3330.74 2Year 223.14 835.]2 83].85 0.020557 5.33 M.22 ]5558 0.93 -3330.74 10 Year 6M.65 8M.72 838.74 0.015140 6.96 IM.70 11].73 0.89 -3330.74 25 Year 1084.19 835.]2 839.18 0.0156M 8.10 191.63 12].29 0.93 -M30.14 100 Year 1802.57 835.]2 839.88 0.015707 9.6] 2M.35 143.34 0.98 IS�rJP�r -M21.56 1 Year 109.00 834.34 Moll 0.013mll 4.32 35.23 93.53 0.]4 -3421.56 2 Year 223.14 834.34 836.16 0.012355 5.01 ]6.39 116.71 0.75 -3421.M 10 Year 680.65 834.M 83].1] 0.0151M TM 16].8] 139.80 0.89 -3421.56 25 Year 1051.]9 834.34 837.68 0.013338 TO M.79 15].99 0.86 -3421.56 100 Year 1802.57 834.34 838.M 0.014066 9.46 355.23 1]].30 0.92 -3641.12 1 Year 109.00 830.09 831.92 0.029Mi 4.96 45.72 11505 100 1.26 1.67 -364].12 2Year 223.14 SM.09 832.14 0.034012 6.33 72.59 132.31 1A3 1.89 IM -3647.12 10 Year 680.65 830.09 832.80 0.026797 7.94 172.62 175.13 1.09 2.49 6.45 -3647.12 25 Year 1054.19 8M.09 833.01 0.036113 9.% 215.64 194.36 1.28 3.76 11.91 -3647.12 100 Year 1802.57 8M.09 833.52 0.035836 11.66 314.40 21379 1.34 4.78 18.73 -3789.M 1 Year 109.00 826.99 828.M 0.011278 4.10 48.59 16374 0.68 0.75 0.46 -3789.M 2Year 223.14 826.99 829.11 0.012141 4.90 9].] 189.79 0.73 0.99 0.88 -3789.M 10 Year M0.65 826.99 829.60 0.018601 7.40 192.59 198.23 0.95 2.05 3.96 -3789.M 25 Year 1051.79 826.99 830.05 0.014668 ].5] 282.52 207.25 0.87 2.00 4.62 -3789.M 100 Year 1802.57 8M.99 830.82 0.010847 7.88 4 .76 243.06 0.79 1.97 4.99 -3903.62 1 Year 109.00 823.78 825.48 0.024208 6.23 1].51 14]8 1 Ot 1.69 10.52 -3903.62 2Year 223.14 823.78 826.M 0.020335 7.40 30.M 23.93 0.98 2.10 11.22 -3903.62 10 Year 680.65 823]8 827.89 0.008697 7.48 188.01 151.15 0.]1 1.72 2.37 -3903.62 25 Year 105119 823.78 828.30 0.010392 8.82 252.66 161A0 080 2.30 4.19 -3903.62 100 Year 1802.57 823.78 828.93 0.012446 10.69 351.92 17236 0.89 3.22 SO4 4033.32 1Year 1W.00 819.97 822.53 0.016142 5.76 M.38 MINI 0.82 1.36 3.17 4033.32 2Year 223.14 819.97 823.M 0.012899 6.59 55.12 60.61 0.78 1.57 2.87 4033.32 10Year 680.65 819.97 824.43 0.012418 8.61 158.34 107.89 0.82 2.33 4.79 4033.32 25 Year 10M.19 819.97 824.90 0.014643 10.19 210.58 113.43 0.91 3.12 8.33 4033.32 100 Year 18M.5] 819.97 825.63 0.017014 12.31 296]3 1M.18 1.01 4.30 15.29 4179.82 1Year 109.00 818.99 820.20 0.018197 481 3Z02 62.08 087 1.07 198 4179.82 2Year 223.14 818.99 820.51 0.021737 6.35 59.85 84.35 0.99 1.69 IM 4179,82 10 Year 680.65 818.99 821.32 0.020540 8.57 149.]3 12149 105 2.62 ].09 4179.82 25 Year 1M.79 818.99 821.73 0.021538 9.90 200.22 121T 1.11 3.29 11.27 4179,82 100 Year 1802.57 818.99 822.37 0.023330 11.99 280.49 12820 1.20 4.47 20.01 4309,59 1 Year 124.29 815.98 81]]9 0.018312 4.53 37.06 75.32 0.85 0.98 1.87 4309.59 2 Year 251.35 815.98 818.20 0.014791 5.24 78.41 123.95 0.82 1.15 1.86 4309.59 10Year ]57.5] 815.98 818.91 0.015M5 TW 191.89 185.21 0.91 1.93 406 4309.59 25 Year 1166.98 815.98 819.24 0.0180% 8.61 255.37 197.91 1.00 2.55 6.62 4309.59 100 Year 1990.03 815.98 819.81 0.018852 10.19 374.97 220.14 1.06 3.32 10.60 4379.00 1 Year 124.29 813.80 816.02 0.013313 4.63 49.15 101 06 013 0.93 1 00 4379.M 2Year 251.35 813.80 816.32 0.016531 5.94 Iltm 114.10 0.84 1.43 224 4379.00 10 Year 757.57 813.80 817.22 0.014168 ].4] M5]6 W&M 0.M 1.94 &] 4379,00 25 Year 11MM 813.80 81]]0 0.0131M 8Ao 294.22 196.10 0.83 2.15 4.M 4379,00 100 Year 199003 813.80 818.31 0.014537 9.70 432.72 231.19 090 2.89 ].55 4486.47 1 Year 124.29 812.M 814.47 0.010518 5.37 40.52 ]5.8] 0.68 1.10 1.05 4486.47 2 Year 251.35 812.W 814.96 0.009358 5.91 101.67 157.05 0.67 1.23 0.0 4486.47 10 Year 757.57 812.00 815.65 0.014035 8.54 229.00 214.20 0.86 2.37 IN 4486.47 25 Year 1166.98 812.00 816.00 0.016497 9.95 310.73 251.92 0.94 3.10 4.14 4486.47 100 Year 1990.03 812.00 816.50 0.018622 11.57 4M.92 282.84 1.03 4.01 8.13 4611.75 1Year 124.29 808.00 809.38 0.001717 1.67 74.31 65.39 028 0.12 020 4617.75 2 Year 251.35 808.00 809.88 0.0022M 2.30 109.46 73.10 0.33 0.21 0.48 461]]5 10 Year ]57.5] 808.00 811.03 0.003151 3.13 203.27 90.51 0 M 0.48 1.19 461].]5 25 Year 1166.98 808.00 811.67 0.003930 442 263.86 100.14 0.48 0.M 2.84 461].]5 100 Year 199003 808.00 812.61 0.001207 5.48 311.46 13294 0.52 0.90 391 469]]8 1 Year 124.29 808.00 808.91 0.013624 3.32 3].40 55.66 0.71 0.57 1.90 469]]8 2Year 251.35 808.00 809.33 0.013601 4.M 62.11 68]2 0.75 0.]] 3.10 469]]8 10 Year 757.57 808.00 810.17 0.013821 8.01 130.81 98.03 0.83 1.39 8.]0 469]]8 25 Year 1186.98 808.00 810.63 0.013612 Z09 178]i 111.28 0.86 1.]8 N. 4697.78 100 Year 1 1990.03 808.00 811.36 0.01WN 8.65 MI.58 1135.32 0.91 2.40 12.47 PROPOSED MAINSTEM River Sta Profile O Total Min Ch El W.S. Elev E.G. Slope Vel Chnl Fbw Area Top Wdth Froude # Chi Shear Chan Power Total cls fl ft R/R fl/s) (-q fl ft Ibls fl Iblfl s 28784 1 Year 13.14 W9.12 949.55 0.037977 2.36 5.56 21.30 0.82 0.62 1.46 287.W 2Year 25.66 WA2 W9.67 0.0M555 3.15 8.28 26.23 0.93 0.99 2.72 287.W 10 Year 73.48 W9.12 9W.01 0.033972 4.30 19.69 40.92 0.91 1.47 IN 287.W 25 Year 112.W W9.12 950.23 0.02]02] 4.62 30.93 63.43 0.85 1.55 2.98 287.64 100 Year 189.20 949.12 00.50 0.025257 5.30 50.01 76.25 0.86 1.88 3.91 129.M 1 Year 13.14 941.76 942.27 0.0%6 4 3.10 4.23 14.39 1 01 1.03 3.18 129.W 2Year 2506 941.76 942.N 0.046370 3.68 7.02 17.28 0.% 1.26 427 129.M 10 Year 7148 941.76 942.89 0.030786 4.80 18.39 35.78 0.90 1.70 3.92 129.M 25 Year 112.26 W1.76 943.16 0.024203 5.07 30.32 51.18 0.83 1.74 IM 129.M 100 Year 189.20 941.76 943.48 0.023159 583 48.29 62.11 0.85 2.11 4.38 50.M 1 Year 13.14 937.98 938.58 0.032466 2.W 4.47 10.87 0.81 0.83 2.43 50.26 2Year 25.66 937.98 9M.74 O.W5 4.07 6.32 12.M 0.99 1.46 5.74 50.26 10Year 73.48 937.98 939.26 0.024555 4.16 20.88 39.56 0.82 1.58 2.83 50.M 25 Year 112.26 937.98 939.48 0.024661 5.40 30.W 46.W 0.85 1.92 3.74 50.M 100 Year 189.20 937.98 939.80 0.024509 6.28 46.69 56.07 0.W 2.40 5.14 -19.14 1Year 13.14 935.M 936.M 0.038213 166 3.64 912 0.98 1.02 3.19 -19.14 2Year 2566 935.M 936.35 0.024653 4.11 7.48 20.98 0.86 1.09 1.87 -19.14 10 Year 1548 935.M 936.86 0.017636 500 2575 50.57 019 1.34 100 -19.14 25 Year 112.26 935.M 937.W 0.018609 5.M M687 59.58 0.84 1.64 2.18 -19.14 100 Year 189.20 935.M 937.37 0.019352 6.57 5510 72.35 0.88 2.07 3.15 -89.82 1 Year 13.14 931.43 932.05 0.035373 S68 3.65 8.93 0.96 1.01 3.21 -89.82 2 Year 25.66 931.43 932.30 0.029523 4.50 6.30 12.40 0.94 1.30 3.76 -89.82 10Year 73.48 93143 932.99 0.017614 5.0 20.47 32.71 0.81 1.53 2.0 -89.82 25 Year 112.26 93143 933.28 0.0169W &W 31.46 42.90 0.82 1.]] 2.75 -89.82 100 Year 189.20 931.43 933.69 0.016 1 6.89 51.63 56.97 0.84 2.13 3.39 -14947 1Year 13.14 928.]] 929.51 0.051220 382 1" ].]4 101 1.37 521 -149.47 2Year 25.66 928.]] 929.]] 0.0M353 4.52 5.75 10.25 101 1.70 6.67 -149.47 10 Year 73.48 W8]] 930.42 0.022702 5.17 20.62 35.68 0.80 1.76 2.88 -149.47 25 Year 112.W 928.]] 930.68 0.021976 575 31.19 45.73 O81 2.05 3.33 -149.47 100 Year 189.20 928.]] 931.05 0.020%2 548 50.65 59.03 082 2.42 4A6 -215.W 1Year 13.14 925.42 925.97 O.W1756 3.55 3.70 981 1.01 0.99 3.53 -215.09 2 Year 25.66 925.42 926.21 0.037776 4.09 6.27 12.19 1.W 1.20 4.91 -215.09 10Year 73.48 925.42 926.74 0.027119 5.33 14.84 20.59 0.95 1.64 5.98 -215.09 25 Year 112.26 925.42 927.06 0.OM579 5.87 M.29 25.63 0.91 1.81 6.11 -215.09 100 Year 189.20 925A2 92].5] 0018215 6.% 38.76 41.62 0.86 2.03 5.13 -246.39 1 Year 13.14 923.80 924.35 0.052309 3.62 3.63 9.W 1.01 1.27 4.59 -246.39 2Year 2566 923.80 924.58 O.W5339 441 5.85 10.41 100 1.65 8.12 -246.39 10 Year 7148 923.80 925.M 0.027824 581 15.55 22.25 0.89 2.09 5.59 -246.39 25 Year 112.26 923.80 925.63 0.018931 560 29.57 43.81 0.] 1.89 2.99 -246.39 100 Year 189.20 923.80 926.05 0.017525 6.25 51.89 64.58 0.16 2.19 3.17 -306.70 1 Year 14.74 920.98 921.65 0.030579 4A3 3.57 &71 1.00 0.97 4.00 -306.70 2 Year 28.45 920.98 921.94 0.027368 5.03 5.08 7.83 1.W 1.27 5.83 -3W.70 10 Year 82.09 920.98 922.80 0.014621 6.03 19.38 25.48 0.83 1.42 2.87 -3W.70 25 Year 124.98 920.98 923.21 0.012987 6.57 31.74 3].6] 0.81 1.57 2.64 -3W.70 100 Year 210.% 920.98 M3]8 0.010]]2 ]06 62.32 69.42 0SI 1.67 2.02 440.85 1Year 14.]4 916.40 916.81 0.011517 141 1905 118.25 0.54 0.15 0.W 4 OS5 2Year 2545 916.40 916.81 O.W2906 273 1905 11825 105 0.57 0.64 4 OS5 10 Year 8209 916.40 916.93 0.057489 4.W NA9 128.M 1.31 1.20 2.29 4 O 85 25 Year 124.98 916.40 917.02 0.055984 4.93 45 W 13169 1. W 1.47 327 44085 100 Year 210.56 916.40 917.15 0.054989 5.87 63.67 136.M 1.39 1.90 528 -509.M 1 Year 14.]4 912.48 913.18 0.039280 3.87 3.81 8.23 1.W 1.11 4.30 -509.M 2Year 28.0 912.0 913.48 0.M7875 4.34 ].3] 16.91 0.91 1.22 2.89 -509.M 10Year 82.09 912AB 914.05 0.020074 550 22.39 34.09 0.85 1.60 3.00 -509.M 25 Year 124.98 912.48 914.28 0.OM478 6.49 30.96 40.68 0.W 2.10 4.28 -509.M 100 Year 210.56 912.48 914.89 0.011700 5.86 80.13 115.90 0.70 1.53 1.32 -543.M 1 Year 14.14 911.16 911.07 0.0316W 3.63 Z22 000 3.87 -545M 2 Year 28.45 911.16 911.M 0.016826 1.51 ]]9 16.62 0.58 0.22 1 ]4 -SISM 1 10 Year 8209 911.16 911.93 0.018310 2.85 22.36 47.54 070 0.58 1.W -513.M 25 Year 124.98 911.16 912.06 0.025568 1& 29.55 57.62 0.85 0.99 3.42 -543.M 100 Year 210.M 911.16 912.30 0.030217 5.17 M.07 64.00 0.98 1.61 6.13 393.91 1 Year 14.74 908.69 W9.36 0.032160 3.67 4.01 9.57 1.00 0.82 3.02 -593.91 2Year 28.45 908.69 909.59 0.027482 4.45 6.43 10.75 0.W 1.05 4.40 -593.91 10Year 82.09 908.69 910.29 0.014555 5.30 22.16 35.47 0.81 1.17 2.08 -593.91 25 Year 124.98 9D3.69 910.58 0.013852 5.91 33.76 43.64 0.82 1.36 2.45 -593.91 100 Year 210.56 908.69 910.99 0.014015 6.W M.87 M.99 0.W 1.73 3.10 -635 M 1 Year 1474 906.18 907.12 0.025233 1% 4.15 ].9] 0 8] 0.74 202 -635 M 2 Year 28.45 906.18 907.38 0.025966 4.M 6.25 8.37 0.92 1.07 4.83 $35.M 10 Year 82.09 908.18 908.23 0.010290 4.74 31.04 59.38 0.66 0.91 0.86 -635M 25 Year 124.98 906.18 908.43 0.011852 5.50 43.57 65.20 012 1.17 1.38 -635M 100 Year 210.% 906.18 908.73 0.013792 6.57 W.29 ]3.]4 080 1.59 240 -709.M 1Year 14.74 904.75 9W]0 0.046812 5.21 12.M 0.00 3.38 -709.M 2Year 28.45 91M.75 9W.% O.W8347 1.76 10.15 28.76 0.98 0.30 2.0 -709.26 10Year 82.09 904.75 905.28 0.0568M 4.24 23.09 48.53 1.29 1.18 5.90 -709.26 25 Year 124.98 9W35 905.42 0.M1781 5.52 29.89 M.W 1.42 1.78 8.92 -70926 100 Year 210.% 904.75 905.66 OOW038 6.83 43.33 57.42 1.43 2.37 12.14 -9W.18 1 Year 14.14 896.04 896.M 0.036589 2.90 5.08 51.35 1.00 0.60 1.73 -9W.18 2Year 28.45 896.W 8W.82 0.036215 3.18 8.94 67.M 1.02 0.68 2.17 -9MAS 10 Year 8209 8%.W 897.14 0.031851 1 3.18 1 2tM 118.33 1.01 G.W 3.23 -904.18 25 Year 124.98 896.W 897.29 0.0301]] 4.23 29.M 1M.07 1.02 1.00 3.92 -9W.18 100 Year 210.56 895.W 89757 0.0161W 4.11 70.18 165.70 0.80 0.82 1.25 PROPOSED MAINSTEM River Sta Profile O Total Min Ch El W.S. Elev E.G. Slope Vel Chnl Fbw Area Top W th Froude # Chi Shear Chan Power Total cls fl ft R/R We) (-q fl R Ibls fl IbIR s -1063.91 1 Year 51.45 887.69 888.58 0.019080 3.22 17.06 37.22 0.78 0.59 1.61 -1063.91 2Year 106.54 887.69 888.86 0.019244 1& 28.90 48.87 0.82 0.]] 2.67 A W3.91 10 Year 331.91 MT69 8 Al 0.021339 5.61 64.24 81.27 0.94 1.40 5.37 A W3.91 25 Year 517.14 887.69 889.72 0.020423 6.47 91.58 94.83 0.96 1.72 6.87 -1063.91 100 Year 890.86 887.69 890.23 0.018938 ].64 145.36 122.0] 0.97 2.16 8.54 -1234.67 1 Year 51.45 882.90 884.39 0.030125 4A8 12.31 22.90 1.01 0.98 4AO -1234.E 2Year 106.84 882.90 8M.73 0.028899 4.70 22.86 38.57 1.02 1.16 488 -1234.67 10 Year 331.94 882.90 885.51 0.017677 6.22 64.2E 69.93 0.91 1.56 5A6 -1234.67 25 Year 517.14 882.90 885.9E 0.015283 692 100.31 91.93 0.89 1.76 &W -1234.67 100 Year 890.86 882.90 886.57 0.014407 SAO 163.59 114.45 0.90 2.20 6.93 -1418.20 1 Year 51.45 8] .18 878.01 0.027582 4.84 10.0 14.61 1.00 1.20 5.79 -1418.20 2Year 106.51 8T/.18 878.4E 0.024048 6.11 17.50 15]1 1.00 1.64 9.5E -1418.20 10Year 331.94 8T.18 879.89 0.013623 7.88 52.71 36.92 0.8E 2.08 ].36 -1418.20 25 Year 517.14 8] .18 8W.72 0.010670 8.38 94.60 69.28 0.80 2.15 4.87 -1418.20 100 Year 890.6E 8T.18 881.68 0.009323 9.25 183.11 114.56 0.78 2.41 4.46 -1587.99 1Year 5145 872.26 873.55 0.014061 S80 14.51 18.75 O67 0.]] 2.38 -1587,99 2Year 106.54 872.26 874.05 0.012595 458 25.57 24.13 O68 1.08 3.42 -1587,99 10 Year 331.94 872.26 874.83 0.024400 R.57 46.38 29.66 102 3.26 16.64 -1587,99 25 Year 517.14 872.26 8]5.]8 0.014252 8.31 89.47 53.08 OS3 2.72 R.41 -1587,99 100 Year 890.86 872.26 876.57 0.015310 10.05 134.65 %73 0.90 3.69 13.90 -1664.13 1 Year 97.21 870.19 871.64 0.028501 5.72 17.42 19.24 0.98 1.85 8.85 -11 6 .13 2 Year 199.87 870.19 872.29 0.0224]] 6.99 31.82 24.53 0.94 2.35 11.20 -1664.13 10Year 612.37 870.19 873.99 0.010018 7.42 155.28 124.15 0.71 2.10 3.05 -1664.13 25 Year 01.45 870.19 874.43 0.011813 8.72 209.99 12].5] 0.18 2.79 5.45 -1664.13 100 Year 1630.08 870.19 875.08 0.014W5 10.67 294.09 132.68 0.89 3.97 10.90 -1738,85 1 Year 97.21 867.91 869.49 0.015612 5.19 18.]4 14.]] 0.81 1.15 5.97 -1738,85 2Year 199.87 861.91 870.12 0.018269 6.98 28.75 17.03 0.92 1.87 12.25 -1738.85 10 Year 612.37 861.91 872.20 0.009165 8.27 118.01 82.99 0.]4 2.03 4.10 -1738.85 25 Year 951.45 867.91 872.91 0.009381 9.3E 184.24 1 W.46 O T 2.4E 5.21 -1738,85 100 Year 1630.08 861.91 873.90 0.009470 10.71 W1.95 129.18 08O 3.01 7.31 -1853.17 1 Year 97.21 865.54 867.25 0.021803 5.93 16.40 13.89 0.9E 1.53 9.0E -1853.17 2Year 199.87 865.54 867.98 0.020197 6.65 30.95 29.01 0.97 1.78 R.42 -1853.17 1OYear 612.37 865.54 869.47 0.010423 ].61 136.83 105.73 0.78 1.85 3.13 -1853.17 25 Year 01.45 865.54 W9.98 0.011439 R.86 194.20 119A6 0.84 2.38 5.65 -1853.17 100 Year 1630.N 885.54 870.76 0.012352 10.54 295.53 139.94 0.90 3.15 8.91 -1988.69 1 Year 9] 21 863.00 864.72 0.016962 5.39 18.03 14.62 0 86 1.25 6.72 -1988.69 2 Year 199.87 863.00 865.45 0.010258 5.6E 59.14 87.30 072 1.18 1.45 -1988,69 10 Year 612.37 863.00 866.31 0.012938 8A6 149.53 117A9 086 2.17 4.19 -1988.69 25 Year 951.45 863.00 866.81 0.013925 9.38 208.40 132.53 0.91 2.72 620 -1988.69 100 Year 163008 W3.00 867.52 0.015016 11.10 310.68 155.30 0.98 3.57 9 ]] -2186.38 1 Year 97.21 859]] 861.47 0.022099 3.68 26.41 47.27 0.87 0.75 2.16 -2166.38 2Year 199.87 859.]] W1.81 0.018152 4.50 48.56 91.78 0.85 0.97 2.43 -2166.38 10 Year 612.37 859.T W2.50 0.015143 6.05 141.84 166.64 OA5 1.M 3.44 -2166.38 25 Year 951.45 859.]] W2.83 0.015701 7.00 201.42 1%.31 0.90 1.81 4.71 -2166.38 100 Year 1630.08 859.]] 863.39 0.014368 7.95 328.17 255.85 0.90 2.14 5.68 -2352.58 1Year 9721 856.34 857.54 0.020460 4.07 W20 83.10 08O 1.02 149 -2352.58 2Year 199.87 856.34 857.77 0.026939 5.17 5].52 95.56 0.94 1.57 3.50 -2352.58 10 Year 612.37 856.34 858.47 0.02W71 6.81 144.38 155]] 0.9E 2.29 513 -2352.58 25 Year 951.45 856.34 858.74 0.02560R TO 190.24 185.35 1 02 2.92 8.14 -2352.58 100 Year 1630M 856.34 859.22 0.024241 &W W2.26 290A8 103 3.48 R.45 -2466.58 1 Year 97.21 852.88 854.37 0.012535 3.71 39.21 143.76 0.65 0.79 0.53 -2466.58 2Year 199.87 852.88 854.62 0.013286 4A2 80.22 1%.07 0.69 1.04 0.84 -2466.58 10Year 612.37 852.88 855.06 0.017915 6.28 194.45 340.39 0.85 1.89 2.01 -24 15.58 25 Year 951.45 852.88 855.28 0.019293 7.04 273.82 388.32 0.89 2.29 2.94 -2466.58 100 Year 1630.08 852.88 855.58 0.021502 8.20 397.78 415.9E 0.97 2.96 525 -2583.58 1 Year 9] 21 8%57 851.27 0.017461 278 54.04 144.89 0 68 0.56 013 -2583.58 2Year 199.87 850.57 851.51 0.016274 3.13 92.28 173.T/ 069 0.65 1.17 -2583.58 10 Year 612.37 850.57 852.07 0.014941 4.3E 213.81 259.83 012 1.05 2A9 -2583.58 25 Year 951.45 8W.57 852.34 0.015601 5.15 290.87 2R99O 016 1.36 3.19 -2583.58 100 Year 1630.08 850.57 852.85 0.012605 5.67 440.04 30392 012 1.49 421 -2081.05 1 Year 97.21 848.94 850.11 0.008815 2.73 63.35 14].49 0.57 0.38 0.36 -2681.05 2Year 199.87 848.94 850.39 0.00666E 2.8E 109.38 178.01 0.57 0.41 0.60 -2681.05 10Year 812.37 848.94 851.00 0.008573 3.75 242.84 236.02 0.61 0.61 1.38 -2681.05 25 Year 01.45 848.94 85142 0.006785 4.09 343.71 2M.82 0.57 0.6E 1.64 -2681.05 100 Year 1630.08 848.94 852.12 0.005437 4.67 518.45 259.24 0.54 0.75 2.12 -2881.92 1 Year 109.00 845.10 846.52 0.031082 5.53 19.12 21.03 1 Ot 1.80 9.92 -2881.92 2Year 223.14 845.10 841.20 0.020340 6.24 39.30 41.75 0.88 1.94 612 -2881.92 10 Year 680.65 845.10 848.48 0.011955 ].15 156.65 132.32 0.15 2.08 3.83 -2881.92 25 Year 105419 845.10 848.87 0.013907 R.41 211.11 1MA9 083 2.75 6.32 -2881.92 100 Year 180257 845.10 849.49 0.016281 10.22 308.14 168.]6 092 3.R4 10.R2 -3018.] 1 Year 109.00 841.33 843.10 0.011222 3.9E 27.64 23.92 0.63 0.m 3.14 -3018.T 2 Year 223.14 841.33 843.61 0.014505 5.68 40.68 27.47 0.16 1.54 ].22 -3018.] 10Year 680.65 841.33 845.16 0.012881 8.20 115.35 86.96 0.80 2.60 6.24 -3018.T 25 Year 1054.79 841.33 846.10 0.009004 RAO 238.41 16Z99 0.70 2.31 3.51 -3018.T 100 Year 1802.57 841.33 846.m 0.010068 9.55 375.26 197.74 0.76 3.08 5.70 -3144.50 1 Year 109.00 838.88 840.]] 0.022182 6.28 1].3] 13.57 0.98 1.67 10.50 -3144.50 2Year 223.14 838.88 841.]] 0.012659 6.48 4 A5 64.25 08O 1.53 2.70 -3144.50 10 Year 680.65 838.88 842.9E 0.010050 7.84 185.39 157.60 O.]] 1.92 2.69 -3144.50 25 Year 105479 838.88 843.43 0.010806 R89 264.35 1]9]0 081 2.3E 3.93 -3144.50 100 Year 1802.57 838.88 844.07 0.012352 10.57 387.89 20&N O89 3.16 674 -3255.98 1 Year 109.00 836.73 838.60 0.018423 5.69 19.16 14.94 0.89 1.38 7.85 -3255.98 2 Year 223.14 836.73 839.25 0.0201511 180 29.5E 19.0 0.99 2.20 14.15 -3255.98 10 Year 680.65 836]3 W.79 0.0091N7 ].8] 171AO 132.16 0.]6 1.92 3.13 -3255.98 25 Year 1051.79 83633 841.25 1 0.011586 9.28 234.95 14ZSO 0.84 2.5E 5.10 -3255.98 100 Year 1802.57 836.73 842.01 0.012284 10.W 35839 174A9 0.89 3.2E 7.85 -3330.74 1Year 109.00 835.72 83].4] 0.016380 4.09 2663 32.81 080 0.82 3.34 -3330.74 2Year 223.14 835.72 837.85 0.020557 533 4412 75.58 0.93 1.28 176 PROPOSED MAINSTEM River Sta Profile O Total Min Ch El W.S. Elev E.G. Slow Vel Chnl Flow Ana Top Wtlih Froude # Chi Shear Chan Poser Total cfs ft Mi Mi ON (sq ft fl lWs ft IWfts -3330.74 10Vear 680.65 835.72 838.74 0.015140 6.% 138]0 117.73 0.89 1]] 5.43 -3330.74 25 Year 10N]9 835.72 839.18 0.015 RAO 191.63 127.29 0.93 2.25 BN -3330.74 100 Year 1802.57 835.72 839.88 0.015707 9.67 286.35 143.N 0.98 2.N 12.25 -3421.56 1 Year 109.00 834.34 836.W 0.0139N 4.43 33.74 91.67 0.76 0.88 1.02 -N21.56 2Year 223.14 B .N 836A6 0.012330 501 76.45 116.73 US 1.03 1.46 -3421.58 10 Vear 680.65 B .N 831.19 0.OW71 7.23 1]0.0] 140.28 0.87 1.W 4.41 -3421.56 25 Year 10N.79 8N.N 837.68 0.013302 Z92 244.03 158.N 0.86 2.09 5.50 -3421.58 100 Year 1802.57 834.34 838.N 0.014066 9.46 355.23 1]].30 0.92 2.76 8.86 -3N].12 1Year 109.00 8W.09 831.93 0.026518 478 4Z35 118.81 0.% 1.16 1.50 -3N1.12 2 Year 223.14 830.09 832.14 O.ON072 6.33 72.59 132.31 1.13 1.89 3.55 -3N1.12 10 Year 680.65 8W.09 832.79 0.028236 &N 169.33 1]3.3] 1.12 2.60 6.86 -3N].12 25 Year 105419 830.09 833.N 0.035413 9.% 215.N 1N.36 1.28 3.76 11.91 -3N7.12 100 Year 1802.57 830.09 833.52 0.035836 11.66 314.40 21379 1.N 4.78 18.73 -3789.44 1 Year 109.00 827.00 828.62 0.018740 4.55 27.% 84.23 0.79 1.18 1.51 -3789.44 2 Year 223.14 827.W 829.03 0.0130N 4.N 90.25 188.43 0.70 1.13 0.96 -3789.44 10 Year 680.65 827.00 829.55 0.01N37 6.87 190.14 197.35 0.87 2.19 3.% -3789.44 25 Year 10N.79 827.00 830.05 0.013167 6.T 290.73 207.43 0.]] 1.97 4.17 -3789.44 100 Year 1802.57 82].00 830.80 0.010625 ].28 458.38 242.02 0.72 2.07 4.92 -3903.62 1 Year 109.00 824.27 825.73 0.031371 5.49 19.86 21.85 1 01 1.78 9.66 -3903.62 2Year 223.14 824.27 826.31 0.025239 674 N.32 21.17 0.98 2.29 12.76 -3903.62 10 Year 680.65 824.27 82].]9 0.010851 TO 175.99 152.84 072 1.98 3.00 -3903.62 25 Year 105479 824.27 828.17 0.013150 8.39 2N.59 159.18 081 2.71 541 -3903.62 100 Year 1802.57 824.27 828.78 0.015276 10.11 335.45 169.80 0.% 3.72 10.07 4033.32 1 Year 109.00 819.97 822.57 0.014373 5.54 23.91 N.68 0S/ 1.24 2.68 4033.32 2 Year 223.14 819.97 823.22 0.012899 6.59 55.12 60.67 0.78 1.57 2.87 4033.32 10 Year 680.65 819.97 824.43 0.012418 8.61 i58.N 107.89 0.82 2.33 4.79 4033.32 25 Year 10N.79 819.97 824.90 0014613 10.19 210.58 113.43 0.91 3.12 8.33 4033.32 100 Year 1802.57 819.97 825.63 0.017014 12.31 2 33 1M.78 1.01 4.30 15.29 4179,82 1Year 109.00 818.99 820.17 0.021100 507 35A1 62.03 0.93 1.20 2.30 4179.82 2 Year 223.14 818.99 820.51 0.021737 6.35 59 8m &.35 0 99 1.69 3.55 4179.82 10 Year 680.65 818.99 821.32 0.020N0 8.57 149.73 121.49 1.05 2.62 7.09 4179.82 25 Year 1054.79 818.99 821.73 0.021538 9.90 200.22 123.T 1.11 3.29 11.27 4179,82 100 Year 1802.57 818.99 822.37 0.023330 11.99 280.49 12820 1.20 4.47 20.N 4309.59 1 Year 124.29 814.43 816.62 0.007852 3.83 32.41 20.87 0.54 0.74 2.82 4309.59 2Year 251.35 814.43 817.10 0.014655 5.85 42.% 23.W 0.16 1.62 9.48 4309,59 10Vear 757.57 814.43 818.67 0.009567 7.05 186]] 176.19 0.68 1.93 2.55 4309.59 25 Year 1166.98 814.43 819.12 0.010757 8.13 269.42 193.22 US 2.46 4.03 4309.59 100 Year 1990.03 814.43 819.75 0.012677 9.18 399.41 217.79 0.82 3.38 7.19 4379.00 1Year 124.29 814.27 815.N 0.01N87 3.93 4842 %.65 O68 0.88 1.% 4379.00 2 Year 251.35 814.27 816.27 0.014713 4.93 83.02 112.18 074 1.25 2.05 4379.00 10 Vear ]57.5] 814.27 817.19 0.012753 6.44 206.36 1]2.8] 015 1.81 3.48 437900 25 Year 116698 814.27 81].6] 0.012089 Z10 2N.07 1N.62 015 2.W 4.51 4379,00 100 Year 1990.03 814.27 818.30 0.013676 8.66 429.62 23570 OS3 2.87 7.19 4486.47 1 Year 124.29 812.00 814.47 0.010518 5.37 40.52 ]5.8] 0.68 1.10 1.05 4486.47 2Year 251.35 812.00 814.% 0.009358 5.91 101.87 157.05 0.67 1.23 0.93 4486.47 10Year ]57.5] 812.00 815.65 0.014035 8.54 229.00 214.20 0.86 2.37 IN 4486.47 25 Year 1166.98 812.W 816.00 0.01N97 9.% 310.]3 251.92 0.N 3.10 4.14 4486.47 100 Year 1990.03 812.00 816.50 0.018622 11.57 444.92 282.84 1.03 4.01 8.13 4611.75 1Year 124.29 808.00 809.38 0.001717 187 74.31 65.39 028 0.12 020 4611.75 2Year 251.35 808.00 809.88 0.002244 ZW 109.46 73.10 0.33 0.21 0.48 4611.75 10 Year 757.57 808.00 811.03 O.00N51 3.13 203.27 NS1 044 0.48 1l9 461].]5 25 Year 116698 808.00 811.67 0.003930 442 263.86 100A4 048 O.N 2.84 461].]5 100 Year 199003 808.00 812.61 O.ON207 5.48 371.46 132.N 0.52 0.90 391 489]]8 1 Year 124.29 808.00 808.94 0.013624 3.32 37.40 55.66 0.71 0.57 1.90 4691.78 2 Year 251.35 808.W 809.33 0.0136N 4.05 62.11 88.]2 0.75 0.]] 3.10 469]]8 10 Year ]5].9 808.00 810.1] 0.013824 8.01 130.81 98.03 0.83 1.39 8.]0 469]]8 25 Vear 1166.98 808.00 810.63 0.01W12 ].09 17871 111.28 0.86 1.78 NO 469]]8 100 Year 1990.03 808.00 811.36 0.0136N 1 8.65 268.58 1 2.40 12.4] EXISTING R51 TRIBUTARY River Sta Profile G Total Min Ch El W.S. Elev E.G. Slam Vel Chnl Flow Area Top Wdth Froude # Chi Shear Chan Power Total cls fl ft R/R fl/s) (-q fl ft Ihls fl IhIR s 33.94 1 Year 3.45 860.05 860.34 0.03M29 2.24 1.54 10.19 1.01 0.32 0.13 33.94 2 Year 7.02 860.05 860.M 0.028486 2.64 2.69 13.41 0.98 0.40 0.93 33.94 10 Year 20.42 860.05 860.67 0.020502 3.59 6.67 21.02 0.94 0.58 1.24 33.94 25 Year 31.01 860.05 WOBO 0.018648 4.05 9]2 25.35 0.93 0.68 1.42 33.94 100 Year 52.22 860.05 W1.01 0.016419 4.67 15.83 32.31 0.92 0.82 1.65 -88.74 1 Year 3.45 856.06 856.38 0.032258 2.37 1.46 8.37 190 0.35 0.83 - 1.74 2 Year 7.02 B56.06 856.49 0.029192 2.83 2.50 11.29 191 O.M 1.13 -BB34 10 Year 20.42 856.06 856.77 0.017508 3.62 7.03 24.05 099 0.57 0.0 -8834 25 Year 3191 856.06 856.90 0.016180 107 1087 28.36 0.89 0.66 1.10 418]4 100 Year 52.22 856.06 857.11 0.015508 4.T 1&91 33.43 0.91 0.83 1.51 -142.11 1 Year 3.45 850.97 851.52 0.030M9 3.18 1.08 3.55 1.02 0.54 1.71 -142.11 2Year 7.02 850.97 851]1 0.026860 3.95 1.78 3.90 1.01 0.72 2.70 -142.11 10Year 20.42 850.97 852.21 0.019706 5.47 4.03 5.10 0.98 1.08 4.23 -142.11 25 Year 31.01 B50.97 852.52 0.017382 6.18 5.74 5.90 0.96 1.26 4.84 -142.11 100 Year 52.M 8W.97 852.97 0.017055 7.46 8.61 7.08 1.00 1.66 6.51 -185A9 1Year 3.45 848.98 849.29 0.030266 293 1.18 4.M 1.00 0.47 1.38 -185A9 2Year 7.02 848.98 849.M 0.027342 3.66 1.92 463 1.00 0.64 2.35 -185A9 10 Year 20.42 848.98 M9.88 0.022851 596 4.W 5.24 to 1.00 4.71 -185.19 25 Year 31.01 848.98 850.15 0.019597 5.0 5.66 7.29 0.97 1.13 4.49 -185.19 100 Year 52.22 848.98 850.65 0.012585 5.86 12.71 21.19 0.83 1.07 1.83 PROPOSED R51 TRIBUTARY River Sta Profile O Total Min Ch El W.S. Elev E.G. Slam Vel Chnl Flow Area Top Wdth Froude # Chi Shear Chan Power Total cls fl ft R/R fl/s) (-q fl ft Ihls fl IhIR s 33.94 1 Year 3.45 860.05 860.34 0.03 29 2.24 1.54 10.19 1.01 0.32 O.73 33.94 2 Year 7.02 860.05 860.0 0.028486 2.64 2.69 13.41 0.98 0.40 0.93 33.94 10 Year 20.42 860.05 860.67 0.020502 3.59 6.67 21.02 0.94 0.58 1.24 33.94 25 Year 31.01 860.05 860.80 0.018 8 4.05 9]2 25.35 0.93 0.68 1.42 33.94 100 Year 52.22 860.05 W1.01 0.016419 4.67 15.83 32.31 0.92 0.82 1.65 - 34 1 Year 3.45 856.06 856.38 0.032258 2.37 1.46 8.37 1 00 0.35 0.83 - 1.74 2 Year 7.02 856.06 856.49 0.029192 2.83 2.50 11.29 101 O.M 1.13 - 34 10 Year 20.42 856.06 856.77 0.017508 3.62 7.03 24.05 089 0.57 0.0 -8834 25 Year 31 01 856.06 856.90 0.016180 407 10 8T 28.36 0.89 0.66 1.10 -8834 100 Year 52.22 856.06 857.11 0.015508 4TT 1&91 33.43 0.91 0.83 1.51 -142.11 1 Year 3.45 852.09 852.38 0.048377 = 1.24 5A7 1.00 0.71 1.96 -142.11 2 Year 7.02 852.09 852.53 0.1�1049 3.35 2.10 6.09 1.01 0.92 3.10 -142.11 10Year 20.42 852.09 852.90 0.037515 4.31 4.74 8.33 1.01 1.29 5.57 -142.11 25 Year 31.01 852.09 853.09 0.034232 4.80 6.51 10.14 1.00 1.49 6.34 -142.11 100 Year 52.22 852.09 853.42 0.026802 5.43 10.43 14.01 0.94 1.69 6.07 -185A9 1Year 3.45 849.22 849.56 0.047780 289 1.19 4.58 100 0.76 2A9 -185A9 2Year 7.02 849.22 849.72 0.013321 3.51 2.00 528 101 0.99 3.47 -185A9 10 Year 20.42 849.22 850.11 0.OWN5 4.60 4.48 T.54 100 1.41 5.81 -185.19 25 Year 31.01 849.22 850.36 0.027611 4.97 6.80 1t" 0.92 1.49 4A9 -185.19 100 Year 52.22 849.22 850.73 0.020015 5.32 13.64 24.90 OS3 1.52 2.S7 MSTING R51 River Sta Profile G Total Min Ch El W.S. Elev E.G. Slo Val Chnl Flow Area Top Wdth Froude # Chl an Power Total cls fl ft R/R W. s fl R Ih/R s 919.05 1 Year 13.T2 854.72 855.44 0.023739 3.F 3.M 6.29 0.87 2.W 919.05 2Year 24.16 854.72 855.66 0.027216 4.69 SAS T.83 0.9T 4.8T919.05 10 Year 61.41 8M32 856.3T 0.0140T9 5.32 15.86 2T.12 O.T8 1.M 919.05 25 Year 90A0 8M.]2 856.66 0.012M5 5.68 25.W 38.11 0.76 31.25l.K2 1.82919.05 100 Year W.72 854.72 857.03 0.011790 6.2T 42.00 51.53 O.T6 2.05 703.41 1 Year 13 T2 M8.90 M9.40 0.033966 3.49 3.93 10.55 1.01 2.T0 703.41 2 Year 24.16 848.90 M9.5T 0.029802 4.14 5.85 11.29 1.00 3.8T 703.41 10 Year 61.41 M8.90 850.M 0.023015 5.53 11.5T 13.29 0.98 6.35703.41 25 Year 90.10 848.90 850.33 0.0200% 6.14 15 91 16.58 0.95 6.53703.41 100 Year 145.T2 848.90 850.83 0.015837 6.T8 25.96 23.]5 0.89 58] 5M.42 1 Year 17.M M5.00 M5.85 0.030274 4.29 3.97 796 1.01 1.02 4.M 558.42 2Year 30.85 845.00 846.13 0.M7158 5.01 6.19 8.58 1.00 1.25 5.81 M8.42 10Year 81.M 845.00 846.87 0.018260 6.43 14.30 15.28 0.92 1.65 5.80 558.42 25 Year 119.60 M5.00 847.34 0.013780 6.M 23.67 24.53 0." 1.63 4.07 558.42 100 Year 1 W.61 845.W 847.92 0.011869 7.35 41.36 37.37 0.81 1.81 3.78 398.93 1 Year 1] M 840.99 842.19 0.011002 IM 5.17 512 081 0.53 1 ]6 398.93 2Year 30S5 840.99 M256 0.012139 4.15 7.46 6.52 O67 0.77 3.03 398.93 10 Year 8194 840.99 M3.12 0.022929 TM 11.44 T.67 0.98 2.14 12.41 398.93 25 Year 119.60 840.99 M3.M 0.02M12 828 15.59 8.52 0.97 2.49 14.26 398.93 100 Year 194.61 840.99 844.90 0.009972 ] T3 37.16 32.78 072 1.87 3.40 212.11 1 Year 17.M 837.96 838]7 0.032471 4.36 3.91 6.74 1.01 1.06 4.M 212.11 2Year 30.85 837.96 839.W 0.028M7 &M 5.96 7.58 I.00 1.35 6.M 212.11 10Year 81.M 837.% 839.94 0.0147M 6.01 17.57 23.23 0.81 1.42 3.05 212.11 25 Year 119.60 837.% 840.32 0.012875 6.42 28.30 33.23 O.78 1.51 2.T8 212.11 100 Year 194.61 837.96 MO.M 0.011141 6.92 51.15 56.93 0.75 1.63 2.32 68M 1Year 1T.M 832.95 833.96 0.030812 4.M 3.89 6.62 191 1.06 465 68.M 2Year MW 832.95 8M.15 0.027282 5.14 6.M T.M too 1.31 6.18 68.M 10 Year 81.M 832.95 8M.91 0.019555 6.74 13.17 10.77 0.95 1.81 8.44 68M 25 Year 119.60 832.95 835.53 0.012165 6.M 24.63 28.21 079 1.57 3.11 68.M 100 Year 1M.61 832.95 836.12 0.010320 T.15 4628 46.51 O.T6 1.68 2.M -78.57 1 Year 1T.M 827.54 828.47 0.024246 4.23 4.03 5.93 0.91 0.95 4.01 -78.57 2 Year 30.85 82T.54 828.75 0.027419 5.35 5.78 6.91 1.00 1.39 6.99 -78.57 10Year 81.M 827.54 829.57 0.019802 7.M 12.60 9.72 0.95 1.93 9.27 -78.57 25 Year 119.60 821.54 830.27 0.009072 5.99 M.03 45.98 0.68 1.25 1.43 -78.57 100 Year 1M.61 827.54 830.66 0.009777 6.M 53.91 56.08 0.73 1.56 2.05 -195.50 1Year 1]M 824.37 825.23 0.0325M IN 4.39 9.57 1.01 0.90 1" -195.50 2Year 3085 824.37 825.47 0.029702 449 6.87 11.50 191 1.09 4S/ -195.50 10 Year 81.M 824.37 826.03 0.022738 &W 13.74 12.90 099 1.60 8.29 -195.50 25 Year 119.60 824.37 826.M 0.017794 &. 20A9 20.27 0.92 1.69 621 -195.50 100 Year 194.61 824.37 827.08 0.01N17 6.29 48.05 55.43 074 1.39 2.23 -337.00 1 Year 17.M 818.M 819.TT 0.013833 3.51 4.86 6.00 0.69 0.62 2.18 -337.00 2Year 30.W 818.M 819.90 0.028602 5.48 5.03 6.31 1.01 1.46 7.68 -337.W 10 Year 81.M 818.M 820.85 0.010389 5.30 27.08 46.55 0.68 1.07 1.08 -33TW 25 Year 119.60 818.M 821.38 0.003981 3.87 68.53 98.02 0." 0.53 0.30 -337.00 100 Year 1M.61 818.M 822.04 0.001801 306 137.87 113.45 0.31 0.30 0.19 PROPOSED R51 River Sta Profile O Total Min Ch El W.S. Elev E.G. Sip Val Chn1 Flow Area Top Wdth Froude # Chl an Power Total cls fl ft R/R W. s fl R Ih/R s 919.05 1 Year 13.12 854.]2 855.44 0.023739 3.J 3.64 6.29 0.8] 2.W 919.05 2 Year 24.16 854.]2 855.66 0.027216 4.69 5.18 ].83 0.9] 4.8]919.05 10 Year 61.41 85 32 856.3] 0.014079 5.32 15.86 27.12 0.18 1.94919.05 25 Year 90A0 854.]2 856.66 0.012M5 5.68 25.W 38.11 0.76 31.251.822 1.82 919.05 100 Year 145]2 854.72 857.03 0.011790 6.2] 42.00 51.53 0.16 2.05 ]03.41 1 Year 13 ]2 848.90 849.40 0.033966 3.49 3.93 10.55 1.01 2.]0 ]03.41 2 Year 24.16 848.90 849.5] 0.029802 4.14 5.85 11.29 1.00 3.8] ]03.41 10 Year 61.41 848.90 850.04 0.023015 5.53 11.5] 13.29 0.98 6.35]03.41 25 Year 90.10 848.90 850.33 0.0200% 6.14 1591 16.58 0.95 6.53 ]03.41 100 Year 145.]2 848.90 850.83 0.015837 6.]8 25.96 23.]5 0.89 58] 558.42 1 Year 17.04 845.00 845.85 0.030274 4.29 3.97 796 1.01 1.02 4.38 558.42 2Year 30.85 845.00 846.13 0.027158 5.01 6.19 8.58 1.00 1.25 5.81 558.42 10Year 81.04 845.00 846.87 0.018260 6.43 14.30 15.28 0.92 1.65 5.80 558.42 25 Year 119.60 845.00 841.34 0.013780 6.68 23.67 24.53 0." 1.63 4.07 558.42 100 Year 194.61 845.W 847.92 0.011869 7.35 41.36 3].3] 0.81 1.81 3.78 398.93 1 Year 1] 04 840.99 842.19 0.011002 3.30 5.17 512 081 0.53 1 ]6 398.93 2Year 30.85 840.99 84256 0.012139 4.15 7.46 6.52 O67 0.77 3.03 398.93 10 Year 8194 840.99 843.12 0.022929 TM 11.44 1.67 0.98 2.14 12.41 398.93 25 Year 119.60 840.99 843.64 0.02W12 828 15.59 8.52 0.97 2.49 14.26 398.93 100 Year 194.61 840.99 844.90 0.009972 ] ]3 31.16 32.78 072 1.87 3.40 212.11 1 Year 17.04 837.96 838]] 0.032471 4.36 3.91 6.74 1.01 1.06 4.64 212.11 2Year 30.85 837.96 839.W 0.028817 520 5.96 7.58 I.00 1.35 6.55 212.11 10Year 81.04 831.96 839.94 0.014731 6.01 1].5] 23.23 0.81 1.42 3.05 212.11 25 Year 119.60 SUM 840.32 0.012875 6.42 28.30 33.23 0.18 1.51 2.]8 212.11 100 Year 194.61 837.96 840.84 0.011141 6.92 51.15 56.93 0.75 1.63 2.32 6864 1Year 1]94 832.95 833.96 0.030812 4.38 3.89 6.62 191 1.06 465 68.64 2 Year MW 832.95 834.15 0.027282 5.14 6.04 ] 94 too 1.31 6.18 68.64 10 Year 81.04 832.95 834.91 0.019555 6.74 13.17 10.]] 0.95 1.81 8.44 6864 25 Year 119.60 832.95 835.53 0.012165 6.64 24.63 28.21 079 1.57 3.11 68.64 100 Year 194.61 832.95 836.12 0.010320 ].15 4638 46.51 0.]6 1.68 2.64 -]8.5] 1Year 17.04 828.46 829.14 0.031749 3.56 4.79 10.37 0.91 0.93 321 -]8.5] 2 Year 30.85 828.46 829.37 0.027299 4.29 7.63 17.61 0.90 1.19 2.% -]8.5] 10Year 81.04 828.46 829.95 0.018061 5.22 21.37 35.54 0.81 1.44 2.54 -]8.5] 25 Year 119.60 828.46 830.22 0.016361 5.63 32.08 44.74 0.80 1.57 2.70 -]8.5] 100 Year 194.61 828.46 830.55 0.016814 6.48 48.09 53.23 0.83 1.% 3.80 -195.50 1Year 1]04 824.81 825.50 0.030584 3.43 4.96 10.69 0.89 0.88 300 -195.50 2Year 3085 824.81 825.71 0.031325 4.17 7.41 12.56 0.94 1.18 4.13 -195.50 10 Year 81.04 824.81 826.24 0.025726 5.73 15.08 18.12 0.95 1.81 7.OS -195.50 25 Year 119.60 824.81 826.73 0.014340 5.43 29.44 48.17 0.15 1.M 220 -195.50 100 Year 194.61 824.81 827.09 0.013693 &W 49.11 51.83 076 1.68 2.85 -337.00 1 Year 17.04 820.00 820.49 0.042381 3.35 7.02 28.51 190 0.92 1.55 -337.00 2Year 30.85 820.00 820.62 0.043381 3.85 11.17 36.17 1.04 1.13 2.27 -337.W 10 Year 81.04 820.00 820.90 0.042932 4.88 23.68 54.O6 1.10 1.61 3.% -33TW 25 Year 119.60 820.00 821.07 0.035583 5.23 34.94 8].09 1.04 1.71 3.01 -337.00 100 Year 194.61 820.00 821.82 0.004208 2.81 107.85 10].83 040 0.40 0.47 MSTING R81 River Sta Profile G Total Min Ch El W.S. Elev E.G. Slo Val Chnl Rm Area Top Wdth Froude # Chl Shear Chan P!3M cls fl ft R/R W. s fl ft Ihls R 42.59 1 Year 43.43 915.8] 916.90 0.0201]] 4.89 8.89 12.10 1.01 0.93 42.59 2Year 88.52 915.8] 91].36 0.018158 5.95 14.9] 14.63 to 1.20 42.59 10 Year 266.52 915.8] 918.78 0.008%1 ].12 51.5] 54.1] O.]9 1.30 42.59 25 Year 410.64 915.8] 919.40 0.00]220 ].56 93.18 80.02 0.75 1.3] 42.59 100 Year 697.6] 915.8] 919.99 0.008439 9.1] 145.96 98.23 0.84 1.90 -115.16 1 Year 4543 911.8] 913.13 0.021633 5 69 ].63 ] 68 1.01 1.18 -115.76 2Year 88.52 911.8] 913.]5 0.018827 6.90 12.93 94" to 1.52 -115.16 10 Year 266.52 911.8] 915.63 0.OW693 Z10 69.]9 ]3.08 0.68 1.22 -115 ]6 25 Year 410.64 911.8] 916.14 0.OW515 Zl0 112.13 89.44 O69 1.37 -115]6 100 Year 69].6] 911.8] 916.]0 0.007937 929 165.23 101.81 0]8 1.91 -191.54 1 Year 43.43 909.36 910.40 002W39 4.97 8.74 11.53 1.01 0.95 4.71 -191.54 2Year 88.52 909.W 910.87 0.017%0 6.05 14.73 13.95 1.00 1.23 6.85 -191.54 10Year 266.52 909.36 912.14 0.012166 8.21 36.79 20.85 0.93 1.76 92] -191.54 25 Year 410.84 909.36 913.22 0.004758 6.% 130.16 1M.23 0.62 1.00 0.90 -191.54 100 Year 69].6] 909.36 913.68 0.005987 8.01 192.49 139.93 0.71 1.42 1.85 -32361 1Year 4343 903.99 905.32 0.02WO5 5.54 TM 8.36 191 1.11 6.17 -323 61 2 Year 88.52 903.99 905.91 0.017751 6 62 13.52 12.48 0.99 1.40 ] 29 -323.61 10 Year 266.52 W3.99 907.24 0.007996 6.97 15.55 83.88 015 1.24 1.56 -323.61 25 Year 410.64 903.99 907.69 0.007389 Z42 118.82 103.37 014 1.34 1.81 -323.61 100 Year 69].6] 903.99 908.15 0.008968 8.96 169.03 11297 0.83 1.86 3.42 488.23 1 Year 43.43 899.36 900.62 0.021291 4.84 8.97 12.60 1.01 0.92 4.0 48823 2Year 88.52 899.36 901.07 0.018147 5.84 15.33 16.W I.00 1.17 6.08 488.23 10Year 266.52 899.36 902.14 0.008579 6.39 71.78 F.53 O.T/ 1.11 1.82 488.23 25 Year 410.64 899.W 902.49 0.009379 740 100.70 86.50 0.83 1.41 2.15 488.23 100 Year 69].6] 899.36 903.02 0.Olow 8.84 150.18 100.43 0.90 1.89 445 -584.07 1Year 43.43 895.99 898.64 0.000897 1.55 27.99 41.19 023 0.08 0.12 -584.07 2 Year 88.52 895.99 899.69 0.000287 1.26 119.76 104.25 0.14 0.04 0.01 -5840] 10 Year 266.52 895.99 900.00 0.001430 3.05 154.10 117.45 0.32 0.23 020 -5M.07 25 Year 410.64 895.99 900.42 0.001683 363 205.82 129.97 0.36 0.32 0.33 -584.07 100 Year 69].6] 895.99 901.00 0.002291 474 2%.12 154.55 0.43 0.51 0.64 -589.20 1 Year 43.43 896.37 898.37 0.003 1 3.62 12.00 28.66 0.48 0.38 1.36 -589.20 2 Year 88.52 8%.37 89966 0.000766 1.88 91.68 91.05 0.22 0.10 0.05 -589.20 10Year 266.52 896.37 899.51 0.010132 &0 78.98 89.76 0.82 1.23 2.08 -589.20 25 Year 410.64 896.37 899.78 0.012489 7.88 101.31 92.39 0.92 1.67 3.79 -589.20 100 Year 69].6] 8%.37 900.33 0.012074 8.95 148.60 105.]8 0.93 2.00 5.95 -59837 CuNert -610.53 1 Year 43.43 895.08 896.87 0.026463 8.06 7.16 5.34 0.92 1.66 10.06 610.53 2Year 88.52 895.08 897.65 0.028319 TM 12.02 11.63 1.00 2.27 16.03 610.53 10 Year 2W.52 895.08 898.87 0.010955 6.58 79.78 81.76 0.68 1.51 2.14 610.53 25 Year 41064 895.08 899.15 0.013457 7.74 102.49 83.75 O.16 2.02 3.% 610.53 100 Year 697.67 895.08 899.58 0.016509 9.33 139.24 92.25 0.86 2.82 7.95 621.00 1Year 43.43 894.99 896.59 0.028287 690 7.23 6.38 099 1.66 9.98 -621.00 2 Year 88.52 894.99 897.32 0.023475 7.10 12.86 10.15 0.96 2.04 10.78 621.00 10Year 266.52 894.99 898.42 0.010276 6.54 82.% 94.48 0.69 1.47 1.76 62190 25 Year 410.64 894.99 898.69 0.012384 ]62 109.67 10249 O.T] 1.94 3.02 -62190 100 Year 69].6] 894.99 899.17 0.013059 564 166.55 139.35 061 2.37 401 688.34 1Year 4343 893.01 894.42 0.023384 4.35 9.97 1462 0.91 0.98 427 688.34 2Year 88.52 893.01 894.82 0.022194 5.34 1].85 27.28 0.94 1.31 4.34 688.34 10Year 266.52 893.01 895.70 0.012935 6.19 68.48 79.51 0.80 1.43 2.67 688.34 25 Year 410.64 893.01 896.01 0.013948 T14 96.08 9330 0.85 1.81 3.A 688.34 100 Year 69].6] 893.01 896.51 0014223 8.25 147.81 113.05 0.89 2.26 5.42 -82590 1Year 4343 889.91 890.85 0.028142 4.73 9.18 13.42 161 1.16 5A9 -825 90 2 Year 88.52 889.91 891.41 0.010787 423 33.03 79.56 O 68 0.71 074 -825.90 10 Year 266.52 889.91 891.89 0.015271 6.30 7125 88.43 OM 1.53 2 85 -825.90 25 Year 410.64 889.91 892.17 0.016327 ] 22 9855 93.06 0.91 1.91 4.46 -82590 100 Year 69].6] 889.91 892.58 0.018239 8.68 138.68 99.91 100 2.59 7.89 -953.37 1 Year 43.43 885.23 886.74 0.029859 &00 7.24 6.57 1.01 1.68 10.11 -953.37 2 Year 88.52 885.23 887.47 0.010821 4.67 35.12 72.53 0.64 0.90 0.80 -953.37 10Year 266.52 885.23 88].9] 0.016302 6.83 75.83 91.04 0.82 1.76 2.92 -953.37 25 Year 410.64 885.23 888.28 0.016042 Z42 112.18 125.87 0.84 1.98 S22 -953.37 100 Year 697.67 885.23 888.63 0.019150 586 157.60 134.43 0.93 2.70 6.12 -1158.36 1Year 4343 878.89 879.n 0.030033 424 10.24 18.67 too 1.00 4.25 -1158.36 2Year 88.52 878.89 880.12 0.025225 4.97 18.17 29.18 0.98 1.22 467 -1158.36 10 Year 266.52 818.89 880.93 0.016026 6.33 MM 58.16 088 1.56 4.53 -1158.36 25 Year 410.64 878.89 881.37 0.014190 7.00 85.23 79.86 0.86 1.76 4.51 -1158.36 100 Year 69].6] 878.89 881.92 0.013956 8.13 133.18 94.21 0.89 2.20 540 -1356.65 1 Year 43.43 872.39 8]3.69 0.028476 5.19 8.36 10.23 1.01 1.34 6.96 -1356.65 2Year 88.52 872.39 874.M 0.Olomo 4.76 28.15 84.64 0.68 0.92 0.68 -1356.65 10Year 266.52 872.39 875.02 0.011410 6A4 86.25 108.69 0.14 1.37 1.72 -1356.65 21 Year 410.84 812.39 8]5.24 0.014275 ].33 110.28 11090 0.85 1.89 3.25 -1356.65 100 Year 89].6] 872.39 8]8.36 0.0042W 5.31 238.85 1%8 0.50 0.8] 1.59 PROPOSED R81 River Sta Profile O Total Min Ch El W.S. Elev E.G. Sip Val Chn1 Flow Area Top Wdth Froude # Chl an Power Total cls fl ft R/R fl/s s fl ft Ih/R s42.59 1 Year 43.43 915.8] 916.90 0.0201]] 4.89 8.89 12.10 1.01 4.5242.59 2Year 88.52 915.8] 91].36 0.018158 5.95 14.9] 14.63 1.00 6.6342.59 10 Year 266.52 915.8] 918.78 0.008%1 ].12 51.5] 54.1] 0.79 2.5942.59 25 Year 410.64 915.8] 919.40 0.00]220 ].56 93.18 80.02 0.75 32.977A8 22842.59 100 Year 697.6] 915.8] 919.99 0.008439 9.1] 145.96 98.23 0.84 3.]0-115.16 1Year 4343 912.68 913.86 0.025810 4.W 10.59 26.25 068 2.64-115.76 2Year 88.52 912.68 914.24 0.021602 5.20 21.06 29.99 086 3.94-115.16 10 Year 266.52 912.68 915.01 0.023984 ].l5 4].41 41.50 0.99 9.51-115]6 25 Year 410.64 912.68 915.69 0.015191 Z56 8Z83 F,36 0.83 5.00-115 ]6 100 Year 69].6] 912.68 916.2] 0.015323 8 ]0 137.58 92.30 0.86 ].18 -191.54 1 Year 43.43 909.52 910.70 0.025819 4.W 10.58 26.25 0.88 1.20 2.64 -191.54 2 Year 88.52 909.52 911.07 0.022141 5.25 20.86 29.91 0.87 1.53 4.05 -191.54 10Year 266.52 909.52 911.88 0.021519 7.42 48.26 37.62 0.94 2.55 9.39 -191.54 25 Year 410.84 909.52 912.37 0.0199% 8.32 67.0 41.41 0.94 2.97 12.17 -191.54 100 Year 69].6] 909.52 913.28 0.011467 7.80 169.49 135.82 0.75 2.31 3.65 -32361 1Year 4343 903.99 905.32 0.020599 5.54 TM 8.36 191 1.11 6.17 -323 61 2 Year 88.52 903.99 905.91 0.017751 6 62 13.52 12.48 0.99 1.40 ] 29 -323.61 10 Year 266.52 903.99 907.24 0.00790 6.97 75.55 83.88 015 1.24 1.56 -323.61 25 Year 410.61 903.99 907.69 0.007389 Z42 118.82 103.37 014 1.34 1.81 -323.61 100 Year 69].6] 903.99 908.15 0.008968 &W 169.03 11297 0.83 1.86 342 488.23 1 Year 43.43 899.36 900.62 0.021266 4.84 8.97 12.60 1.01 0.92 4.44 48823 2Year 88.52 899.36 901.07 0.018147 5.84 15.33 1660 I.00 1.17 6.08 488.23 10Year 266.52 899.36 902.14 0.008579 6.39 71.78 F.53 O.T/ 1.11 1.82 488.23 25 Year 410.64 899.W 902.49 0.009379 740 100.70 86.50 0.83 1.41 2.15 488.23 100 Year 69].6] 899.36 903.02 0.0103 8.84 150.18 100.43 0.90 1.89 445 -564.07 1Year 43.43 895.99 898.64 0.000897 1.55 2Z99 41.19 023 0.08 0.12 -584.07 2 Year 88.52 895.99 899.72 0.000266 L23 12l. 105.31 0.14 0.04 0.01 -584 0] 10 Year 266.52 895.99 900.19 0.001034 2.71 176.43 123.68 028 0.18 0.14 -584.07 25 Year 410.64 895.99 900.42 0.001683 3.63 205.81 129.97 0.36 0.32 0.33 -584.07 100 Year 69].6] 895.99 901.05 0.002244 473 293.75 164.02 043 0.51 0.59 -589.20 1 Year 43.43 896.37 898.37 0.003 1 3.62 12.00 28.66 0.48 0.38 1.36 -589.20 2 Year 88.52 8%.37 898.33 0.015118 Z55 11.73 26.28 1.00 1.65 12.44 -589.20 10Year 266.52 896.37 900.10 0.002714 4.00 127.96 99.46 0." 0.41 0.52 -589.20 25 Year 410.64 896.37 899.78 0.012489 Z88 101.31 92.39 0.92 1.67 3.79 -589.20 100 Year 69].6] 8%.37 900.23 0.01M18 9.54 139.78 103.09 1.01 2.31 7.17 -59837 CUNert -610.53 1 Year 43.43 895.22 80.79 0.006273 2.W 16.00 16.49 0.46 0.43 1.03 610.53 2 Year 88.52 895.22 897.00 0.014368 415 19.43 17.76 0.72 1.18 4.T 610.53 10 Year 2W.52 895.22 897.88 0.022434 8.31 33.16 53.85 0.% 3.05 22.41 610.53 25 Year 41064 895.22 898.74 0.009975 6.90 98.09 90.22 0.69 1.88 3.01 610.53 100 Year 697.67 895.22 899.24 0.011930 8.34 140.37 93.42 0.78 2.62 6.00 621.00 1 Year 43.43 895.22 896.41 0.024734 4.30 10.81 26.33 0.86 1.16 2.52 -621.00 2 Year 88.52 895.22 896.79 0.020815 5.14 21.37 W.08 0.85 1.48 378 621.00 10Year 266.52 895.22 897.60 0.02009 7.29 49.05 73.46 0.92 2.45 8.96 62190 25 Year 410.64 895.22 898.16 0.013189 6.92 103.33 97.56 0 T 2.03 1" -62190 100 Year 69].6] 895.22 898.57 0.015698 8.W 144.45 100.33 086 2.81 676 688.34 1 Year 4343 893.10 894.32 0.021559 4.11 11.56 26.82 0.81 1.05 2.17 688.34 2Year 88.52 893.10 894.65 0.0M140 5.25 20.86 29.91 0.87 1.53 4.05 688.34 10Year 266.52 893.10 895.51 0.016174 6.62 65.46 72.98 0.82 2.00 3.67 688.34 25 Year 410.64 893.10 895.91 0.015928 L35 95.40 88.85 0.84 2.33 4.57 688.34 100 Year 69].6] 893.10 896.41 0.016718 8.53 144.64 109.39 0.89 2.95 6.62 -825 90 1 Year 4143 889.91 890.85 0.028142 4.73 9.18 13.42 161 1.16 5 49 -825 90 2 Year 88.52 889.91 891.41 0.010787 423 33.03 79.56 O 68 0.71 074 -825.90 10 Year 266.52 889.91 891.89 0.015271 6.30 7125 88.43 OM 1.53 2 85 -825.90 25 Year 410.64 889.91 892.17 0.016327 ] 22 9855 93.06 0.91 1.91 4.46 -82590 100 Year 69].6] 889.91 892.58 0.018239 8.68 138.68 99.91 100 2.59 7.89 -953.37 1 Year 43.43 885.23 886.74 0.029859 6.00 7.24 6.57 1.01 1.68 10.11 -953.37 2 Year 88.52 885.23 887.47 0.010821 4.67 35.12 72.53 0.64 0.90 0.80 -953.37 10Year 266.52 885.23 88].9] 0.016302 6.83 75.83 91.04 0.82 1.76 2.92 -953.37 25 Year 410.64 885.23 888.28 0.016042 Z42 112.18 125.87 0.84 1.98 322 -953.37 100 Year 697.67 885.23 888.63 0.019150 886 157.60 134.43 0.93 2.70 6.12 -1158.36 1Year 4343 878.89 879.T 0.030033 424 10.24 18.67 1.01 1.00 4.25 -1158.36 2Year 88.52 878.89 880.12 0.025225 4.97 18.17 29.18 0.98 1.22 467 -1158.36 10 Year 266.52 818.e9 880.93 0.016026 6.33 MM 58.16 088 1.56 4.53 -1158.36 25 Year 410.64 878.89 881.37 0.014190 7.00 85.23 79.86 0.86 1.76 4.51 -1158.36 100 Year 69].6] 878.89 881.92 0.013956 8.13 133.18 94.21 0.89 2.20 640 -1356.65 1 Year 43.43 872.39 e]3.69 0.028476 5.19 8.36 10.23 1.01 1.31 6.96 -1356.65 2 Year 88.52 872.39 874.M 0.010540 4.76 28.15 84.84 0.68 0.92 0.68 -1356.65 10Year 266.52 872.39 875.02 0.011410 6A4 86.25 108.89 0.]4 1.3] 1.]2 -1356.65 25 Year 410.61 812.39 8]5.58 0.006515 5.39 148.08 113.18 0.58 0.98 1.45 -1358.65 100 Year 89].6] 872.39 8]6.48 0.00380 5.04 250.65 119.44 0.47 0.78 1.37 EXISTING R8F River Sta Profile G Total Min Ch El W.S. Elev E.G. Slo Val Chnl R.Area Top Wdth Froude # Chl Shear Chan P!108 cls fl ft R/R We s fl ft Ihls R 184.8] 1 Year 9.60 985.49 986.30 0.033453 2.80 3.43 12.]2 0.95 0.55 184.8] 2Year 21.32 985.49 986.49 0.028189 3.41 6.36 17.99 0.94 0]i 184.8] 10 Year ]0.31 985.49 986.95 0.021233 4.88 1].84 32.31 0.92 1.13 184.8] 25 Year 111.19 985.49 98].22 0.018842 5.50 2].62 40.89 0.91 1.32 184.8] 100 Year 193.55 985A9 987.61 0.017029 6.38 46.43 54.0] 0.91 1.60 106.89 1 Vear 9.60 9]5.50 9]6.35 0.035897 424 2.26 4.14 1.01 1.05 106.89 2 Year 21.32 9]5.50 9]6.]4 0.031397 5.38 3.98 4.11 1.01 1.45 106.89 10 Year ]0.31 9]5.50 9]].90 0.010]]2 550 24.88 39.19 0.68 1.14 106.89 25 Vear 111.19 9]5.50 9]8.1] 0.012230 6.3] W.4] 45.48 0]4 1.47 106.89 100 Vear 193.55 9]5.50 9]8.56 0.014046 T% 55.52 53.38 0.81 1.9] 2.57 1 Year 9.60 967.25 967.88 9039760 2.79 3.44 14.59 1.01 0.57 1.61 2.57 2 Year 21.32 967.25 968.07 0.045482 3.07 6.97 23.10 0.97 0.87 2.59 2.57 10Year 70.31 967.25 968.48 0.032869 4.04 19.78 50.15 0.88 1.33 2.86 2.57 25 Year 111.19 967.25 968.70 0.028508 429 33.32 70.55 0.83 1A8 2.79 2.57 100 Year 193.55 967.25 968.92 0.032]]5 5.09 49.67 74.35 0.90 2.02 5.30 -33.48 1 Year 9.60 964.10 964.57 0.OW032 3.33 2.88 8.50 101 0.73 244 -33.48 2Year 21.32 964.10 964.81 0.030519 4.30 4.98 902 1Ot 1.03 425 -33.48 10 Year 70.31 964.10 965.53 0.020550 6.11 12.54 17.52 0.95 1.58 4.87 -33.48 25 Year 111.19 964.10 966.09 0.010086 5.42 MM 55.76 0.]0 1.10 1 22 -33.48 100 Year 193.55 964.10 966.M 0.011359 548 5].55 63.21 0.]] 1.49 2.12 60.00 1 Year 9.60 961.98 962.53 0.033669 3.95 2.43 5.04 1.00 0.93 3.66 60.00 2 Year 21.32 %1.98 962.87 0.029364 506 4.23 5.61 I.00 1.30 6.09 6000 10Year 7031 961.98 W3.87 0.01M72 6.11 17.83 23.50 0.80 1.41 2.52 60.00 25 Year 111.19 961.98 964.31 0.012720 6.62 30.25 35.18 0.18 1.58 2.39 60.00 100 Year 193.55 961.98 964.88 0.010649 ]06 58.97 55.05 0.74 1.66 2.26 -94.24 1Year 9.60 %0.48 961.27 0.037903 288 IN 12.99 100 0.59 174 -94.24 2Year 21.32 WA8 961.47 0.028945 3.21 6.99 24.17 0.93 0.86 1.57 -94.24 10 Year 70.31 960.48 961.88 0.020436 4.47 20.44 43.45 089 0.99 2.05 -94.24 25 Year 111.19 WA8 %2.10 0.019426 5.11 30.24 47.92 0.90 1.19 2.19 -94.24 100 Year 193.55 WA8 962.41 0.019255 8.11 4566 50.27 094 1.55 4.58 -IU.23 1 Year 9.60 954.W 95415 0.035157 4.32 2.22 3.87 1.00 1.07 4.62 -144.23 2 Year 21.32 954.00 955.16 0.031783 5.50 3.89 4.25 1.00 1.50 7.73 -144.23 10Year 70.31 954.00 950.31 0.023523 8.05 9.40 5.40 0.98 2.47 12.83 -14423 25 Year 111.19 954.00 957.02 0.021543 9.36 13.47 6.14 0.99 3.03 15.42 -144.23 100 Year 193.55 954.00 958.69 9010656 8.99 34.16 23.01 0.75 2.39 4.70 -178.20 1Year 9.60 01.00 951.58 0.034733 404 2.38 4.]3 1.00 0.97 IN -178.20 2Year 2132 951.00 951.94 0.029553 508 4.22 544 0.99 1.31 6.06 -17520 10 Year 70.31 951.00 954.06 O.OD1096 442 19.23 911 0.45 0.65 1.38 -17820 25 Year 111.19 951.00 954.55 0.005800 5.83 24.75 12.80 0.55 1.07 2.45 -178.20 100 Year 193.55 951.00 956.22 0.00330 516 59.09 31.67 0 45 0.92 1.13 -182.99 1 Year 9.60 950.49 951.18 0.033224 4.06 2.37 4.67 1.00 0.96 3.90 -182.99 2 Year 21.32 950.0 951.92 0.008013 3.49 6.34 6.02 0.58 0.54 1.50 -182.99 10 Year 70.31 950.49 954.05 0.002607 3.93 21.43 13.21 0.38 0.49 0.82 -182.99 25 Year 111.19 950.49 954.55 0.003940 5.30 28.14 16.75 0.48 0.84 1.38 -182.99 100 Year 193.55 950.49 953.82 0.0241M 11.41 19.50 11.94 1.14 4.19 33.47 A W67 Culvert -216.34 1 Year 9.60 947.34 948.09 0.036021 4.04 2.38 4.81 1.01 0.97 3.94 -216.34 2 Year 21.32 94].34 W." 0.033511 5.16 4.13 5.07 101 1.39 7.15 -216.34 10Year 70.31 94].34 949.45 0.025085 ].48 9.17 6.43 0.98 2.25 12.61 -216.34 25 Year 111.19 94].34 950.10 0.021842 8.56 14.28 ].50 0.96 2.65 14.55 -216.34 100 Year 193.55 94].34 951.14 0.018848 10.07 22.66 8.]8 0.95 3.26 18&4 -224 7 1 Year 9.60 946.98 94].]1 0.034376 IN 2.41 5.01 1.01 0.94 3.74 -224 2] 2 Year 21.32 946.98 948.05 0.030092 5.10 4.19 5 41 101 1.32 6.35 -22427 10 Year 70.31 946.98 949.02 0.022243 ]4] 9.99 648 099 2.17 11.36 -22427 25 Year 111.19 946.98 949.65 0.019713 8.61 14.37 ].88 0.98 2.61 12.85 -224.27 100 Year 193.55 946.98 950.97 0.011]]3 8.91 M9 21.97 081 2.42 5.61 -280.29 1 Year 9.60 942.46 943.07 0.034739 3.62 2.65 6.61 1.01 0.82 2.97 -280.29 2Year 21.32 942.46 943.36 0,030319 4.69 4.56 6.91 1.01 1.17 5.28 -280.29 10 Year ]0.31 942.46 944.30 9012820 5.4] 19.94 32.52 0.76 1.19 1." -280.29 25 Year 111.19 942.46 944.62 0.012804 6.18 31.72 39.47 0.78 1.43 2.14 -280.29 100 Year 193.55 942A6 945.08 0.013267 ].24 51.57 48.26 0.82 1.82 3.16 -349]8 1 Vear 9.60 938.88 939.W 0.000174 0.39 2510 39.57 0.08 0.01 OM -340.]6 2Year 21.32 938.88 940.13 0.000150 0.51 45.30 4 38 0.08 0.01 0.00 -340.]e 10 Year 70.31 938A8 942.00 0.000058 0.59 144.89 62.51 0.06 0.01 0.00 -340.]e 25 Vear 111.19 938.88 942.81 0.000061 OJi 198.52 69.88 0.06 0.01 0.01 -310.]8 100 Vear 193.55 938.88 943.33 0.000118 1.08 237,11 ]9.]3 0.09 0.03 0.02 PROPOSED R8F River Sta Profile O Total Min Ch El W.S. Elev E.G. Slo Val Chnl Flow Area Top Wdth Froude # Chl Shear Chan P!108 cls fl ft R/R We s fl ft Ihls R 184.8] 1 Year 9.60 985.49 986.30 0.033453 2.80 3.43 12.]2 0.95 0.55 184.8] 2Year 21.32 985.49 986.49 0.028189 3.41 6.36 17.99 0.94 0]i 184.8] 10 Year ]0.31 985.49 986.95 0.021233 4.88 1].84 32.31 0.92 1.13 184.8] 25 Year 111.19 985.49 98].22 0.018842 5.50 2].62 40.89 0.91 1.32 184.8] 100 Year 193.55 985A9 987.61 0.017029 6.38 46.43 54.0] 0.91 1.60 106.89 1 Vear 9.60 9]5.50 9]6.35 0.035897 424 2.26 4.14 1.01 1.05 106.89 2 Year 21.32 9]5.50 9]6.]4 0.031397 5.38 3.98 4.11 1.01 1.45 106.89 10 Year ]0.31 9]5.50 9]].90 0.010]]2 550 24.88 39.19 0.68 1.14 106.89 25 Vear 111.19 975.50 9]8.1] 0.012230 6.3] W.4] 45.48 0]4 1.47 106.89 100 Vear 193.55 975.50 9]8.56 0.014046 T% 55.52 53.38 0.81 1.9] 2.57 1 Year 9.60 967.25 967.88 0.039760 2.79 3.44 14.59 1.01 0.57 1.61 2.57 2 Year 21.32 967.25 968.07 0.045482 3.07 6.97 23.10 0.97 0.87 2.59 2.57 10Year 70.31 967.25 968.48 0.032869 4.04 19.78 50.15 0.88 1.33 2.86 2.57 25 Year 111.19 967.25 968.70 0.028508 429 33.32 70.55 0.83 146 2.79 2.57 100 Year 193.55 967.25 W8.92 0.032]]5 5.09 49.67 74.35 0.90 2.02 5.30 -33.48 1 Year 9.60 964.11 964.63 0.043215 342 2.80 Z85 101 0.95 3.26 -33.48 2 Year 21.32 964.11 964.90 0.037863 410 5.08 9 43 1 01 1.25 524 -33.48 10 Year 70.31 964.11 965.71 0.01612 5.10 18.26 41.31 OI] 1.36 1 ]3 -33.48 25 Year 111.19 964.11 966.05 0.013168 5 29 35.63 56.54 072 1.35 1.60 -33.48 100 Year 193.55 964.11 966.36 0.015689 546 53.95 61.56 0.81 1.91 105 60.00 1 Year 9.60 9 A5 962.97 0.043138 3.42 2.80 7.85 1.01 0.95 3.25 60.00 2 Year 21.32 962.45 963.24 0.037674 4.19 5.09 9A3 1.01 1.24 5.21 60.00 10Year 7031 962.45 W3.95 0.020123 5.35 16.81 25.51 0.85 1.54 3.42 60.00 25 Year 111.19 982.45 964.29 0.018250 5.99 26.74 34.09 0.84 1.]] 3.68 60.00 100 Year 193.55 962.45 964.80 0.014781 6A9 5140 54.36 0.79 1.90 3.26 -94.24 1Year 9.60 960.39 960.91 0.043138 342 2.80 ].85 101 0.95 325 -94.24 2Year 21.32 960.39 961.17 0.038931 4.24 5.03 9A0 102 1.28 5.40 -94.24 10 Year 70.31 960.39 961]6 0.024295 5.45 18.62 33.86 0.91 1.65 3.12 -94.24 25 Year 111.19 960.39 962.09 0.017508 5.52 33.37 47.93 0.81 1.55 2.52 -94.24 100 Year 193.55 960.39 962.41 0.019478 8.65 4903 50.28 088 2.11 4.64 -1".23 1Year 9.60 955.73 9%.26 0.042268 3.40 2.82 TW 1.00 0.93 3.18 -144.23 2Year 21.32 955.73 9%.52 0.037887 4.20 5.08 9.43 101 1.25 5.24 -144.23 10Year 70.31 955.73 957.19 0.028248 5.97 12.13 13.44 0.96 1.93 8.32 -14423 25 Year 111.19 955.73 957.60 0.022948 6.19 18.T 15.91 0.94 2.27 9.68 -144.23 100 Year 193.55 955.73 958.25 0019947 7.93 30.34 19.80 0.93 2.76 11.72 -178.20 1Year 9.60 01.59 952.11 0.043157 3.42 2.80 ].85 1.01 0.95 325 -178.20 2Year 2132 951.59 952.38 0.037977 4.20 5.07 9A2 1.01 1.25 5.26 -17520 10 Year 70.31 951.59 954.08 0.002755 2.92 29.88 19.]] 0.34 0.38 0.59 -17820 25 Year 111.19 951.59 954.70 0.002685 3.40 43.37 23.56 0.% 0.47 0.76 -178.20 100 Year 193.55 951.59 955.37 0.003539 449 60.56 21.65 042 0.76 148 -182.99 1 Year 9.60 950.79 951.31 0.041359 3.53 2.72 ].82 1.00 0.98 3.47 -182.99 2Year 21.32 950.79 951.96 0.007421 2.90 7.36 11,75 0.50 048 1.38 -182.99 10 Year 70.31 950.79 954.04 0.002228 3.01 26.23 24.21 0.32 0.37 0.60 AUM 25 Year 111.19 950.79 W.61 0.003111 3.70 36.58 27.69 0.38 0.55 0.75 -182.99 100 Year 193.55 950.79 955.25 O.OM113 4.86 55A9 31.85 OA5 0.89 1.50 A W67 Culvert -216.34 1 Year 9.60 947.34 948.09 0.036021 4.04 2.38 4.81 1.01 0.97 3.94 -216.34 2 Year 21.32 94].34 W." 0.033511 5.16 4.13 5.07 101 1.39 7.15 -216.34 10Year 70.31 94].34 94945 0.025085 ].48 9.17 6.43 0.98 2.25 12.61 -216.34 25 Year 111.19 94].34 950.10 0.021842 8.56 14.28 ].50 0.96 2.65 14.55 -216.34 100 Year 193.55 94].34 951.14 0.018848 10.07 22.66 8.]8 0.95 3.26 18&4 -224 7 1 Year 9.60 946.98 94].]1 0.034376 IN 2.41 5.01 1.01 0.94 3.74 -224 2] 2 Year 21.32 946.98 948.05 0.030092 5.10 4.19 5 41 101 1.32 6.35 -22427 10 Year 70.31 946.98 949.02 0.022243 ]4] 9.99 648 099 2.17 11.36 -22427 25 Year 111.19 946.98 949.65 0.019713 8.61 14.37 ].88 0.98 2.61 12.85 -224.27 100 Year 193.55 946.98 950.97 0.011]]3 8.91 M0 21.97 081 2.42 5.61 -280.29 1 Year 9.60 942.46 943.07 0.034739 3.62 2.65 6.61 1.01 0.82 2.97 -280.29 2Year 21.32 942.46 943.36 0.030319 4.69 4.56 6.91 1.01 1.17 5.28 -280.29 10 Year ]0.31 942.46 944.30 0012820 5.4] 19.94 32.52 0.76 1.19 1." -280.29 25 Year 111.19 942.46 944.62 0.012804 6.18 31.72 39.47 0.78 1.43 2.14 -280.29 100 Year 193.55 942A6 945.08 0.013217 ].23 51.65 48.29 0.82 1.82 3.15 -340 ]8 1Vear 9.60 938.83 939.W 0.000184 0.39 25.31 39.57 0.08 0.01 0.00 -340.]6 2Year 21.32 938.83 940.13 0.000155 0.51 M.92 4 39 0.08 0.01 0.00 -340.]e 10 Year 70.31 938.83 942.00 0.000058 0.59 144.51 62.51 0.06 0.01 0.00 -340.]e 25 Vear 111.19 938.83 942.81 0.000062 0.71 198.13 69.88 0.06 0.01 0.01 -310.]8 100 Vear 193.55 938.83 943.33 0.000119 1.08 236.73 ]9.]3 0.09 0.03 0.02 Albemarle County Floodplain Development Permit No.: ENGINEERING "NO -RISE" CERTIFICATION Community: Mountfair Innisfree Stream g�12/2022 Applicant: Mitigation Bank, LLC Date: Address: 5505 Walnut Level Road, Crozet, VA 22932 Telephone: (434) 823-5400 SITE DATA 1. Location: t/a; t/a; Section Albemarle State: VA Engineer: Andrew Tiefenback, PE Address: 5209 Center St. Williamsburg VA23188 757-358-9080 Township ; Range Street Address: 5505 Walnut Level Road, Crozet, VA 22932 2. Panel(s) No. of NFIP map(s) affected: 51003C0100D 3. Type of Development: Filling ❑ Grading ❑ Excavation ❑ Minor Improv. Substantial Improv. ❑ New Construction ❑ Other K 4. Description of Development: The development involves stream restoration and enhancement, respectively, of approximately 2,173 LF and 1,720 LF of degraded stream channel. The project will also involve riparian buffer activities including restoration ot 24.4 acres ot riparian butter. 5. Name of Flooding Source: Unnamed Tributaries to the Doyles River COMMENTS: The downstream end of the proposed stream restoration sits in a FEMA Flood Hazard Zone A. The sections within the FEMA-delineated Zone A generally show a decrease in water an one here is improvement to capacity and no rise/no impact is anticipated. This is to certify that I am a duly qualified engineer licensed to practice in the State of Virginia . It is to further certify that the attached technical data supports the fact that the proposed development described above will not create any increase to the Base Flood Elevations, on the named flooding source, at published cross sections in the Flood Insurance Study for the above community dated April 2, 2014 and will not create any increase to the Base Flood Elevations at unpublished cross sections in the vicinity of the proposed development. Name: Andrew Tiefenback, PE Signature: Date: 8/11 /2022 Title: Civil Engineer License No.: 60845 (seal) R7-No Rise (Converted to Adobe Form by State of Virginia) 09-17-19