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SEDCAD+ RIPRAP CHANNEL DESIGN <br />----------------------------- <br />• ' RPS PRIMARY SPILLWAY 10 YR 24 HR EVENT <br />INPUT VALUES: <br />Shape TRAPEZOIDAL <br />Discharge 40.50 cfs <br />Slope 1.00 $ <br />Sideslopes (L and R) 3.00:1 3.00:1 <br />Bottom Width 10.00 feet <br />Freeboard .1 ft <br />RESULTS: <br />Mild Slope Design <br />Depth 0.95 ft <br />with Freeboard 1.05 ft <br />Top Width 15.71 ft <br />with Freeboard 16.31 ft <br />Velocity 3.31 fps <br />Cross Sectional Area 12.24 sq ft <br />Hydraulic Radius 0.76 ft <br />Manning's n 0.038 <br />Froude Number 0.66 <br />• Dmax 1.500 ft (18.00 in) <br />D50 0.750 ft ( 9.00 in) <br />D10 0.250 ft ( 3.00 in} <br />• <br />