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SEDCAD 4 for Windows <br />5 <br />Structure Detail: <br />Structure #1 (Vegetated Channel) <br />Triangular Vegetated Channel Inputs: <br />Material: Grass mixture <br />Left Right <br />9 Retardance <br />Freeboard <br />Freeboard Freeboard <br />Limiting <br />9 <br />Sideslope Sideslope Slope (%) <br />Ratio Classes <br />Mult. x <br />Depth (ft) % of Depth <br />Velocity <br />(fps) <br />Ratio <br />(VxD) <br />19.22 cfs <br />1.5:1 3.0:1 1.5 D, B <br />1.00 <br />5.0 <br />Vegetated Channel Results: <br />Filename: TR105 Terrace DitchR1 10024 sc4 Printed 06-12-2015 <br />Exh. 7-20G-7 Revision Date: 07/20/2015 <br />Revision No.: TR -105 <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 />19.22 cfs <br />19.22 cfs <br />Depth: <br />1.60 ft <br />2.60 ft <br />2.28 ft <br />3.28 ft <br />Top Width: <br />7.20 ft <br />11.70 ft <br />10.26 ft <br />14.76 ft <br />Velocity: <br />3.33 fps <br />1.64 fps <br />X -Section Area: <br />5.77 sq ft <br />11.69 sq ft <br />Hydraulic Radius: <br />0.732 ft <br />1.041 ft <br />Froude Number: <br />0.66 <br />0.27 <br />Roughness Coefficient: <br />0.0444 <br />0.1139 <br />Filename: TR105 Terrace DitchR1 10024 sc4 Printed 06-12-2015 <br />Exh. 7-20G-7 Revision Date: 07/20/2015 <br />Revision No.: TR -105 <br />