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• <br />.7 <br />• <br />SEDCAD 4 for Windows <br />rr,...,,,i,h# 1000 _onIn os. 1. i Q,h- -K <br />Structure Detail; <br />Structure #1 (Vegetated Channel) <br />Triangular Vegetated Channel Inputs: <br />Material: Grass mixture <br />Left Right Retardance <br />Freeboard Freeboard Freeboard <br />Limiting <br />Sideslope Sideslope Slope ( %) Classes <br />Mult. x <br />Depth (ft) % of Depth <br />Velocity <br />(fps) <br />Ratio Ratio <br />(VxD) <br />24.02 cfs <br />1.5:1 3.0:1 1.5 D, B <br />1.00 <br />5.0 <br />Vegetated Channel Results: <br />Filename: Terrace ditch 10024.sc4 Printed 12 -06 -2010 <br />Exh. 7 -20G -7 Revision Date: 12/31/10 <br />Revision No.: TR -81 <br />Stability <br />Class D w/o <br />Freeboard <br />Stability <br />Class D w/ <br />Freeboard <br />Capacity <br />Class B w/o <br />Freeboard <br />Capacity <br />Class B w/ <br />Freeboard <br />Design Discharge: <br />24.02 cfs <br />24.02 cfs <br />Depth: <br />1.71 ft <br />2.71 ft <br />2.39 ft <br />3.39 ft <br />Top Width: <br />7.69 ft <br />12.19 ft <br />10.77 ft <br />15.27 ft <br />Velocity: <br />3.65 fps <br />1.86 fps <br />X- Section Area: <br />6.57 sq ft <br />12.90 sq ft <br />Hydraulic Radius: <br />0.781 ft <br />1.094 ft <br />Froude Number: <br />0.70 <br />0.30 <br />Roughness <br />Coefficient: <br />0.0423 <br />0.1040 <br />Filename: Terrace ditch 10024.sc4 Printed 12 -06 -2010 <br />Exh. 7 -20G -7 Revision Date: 12/31/10 <br />Revision No.: TR -81 <br />