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SEDCAD 4 for Windows <br />Copyright 1998 Pamela J. Schwab <br />Civil Software Design <br />2 <br />• <br />w/o Freeboard w/ Freeboard <br />Froude Number: 0.70 <br />Structure #3 (Riprap Channel1 <br />Ditch to pond <br />Trapezoidal Riprap Channel Inputs: <br />Material: Riprap <br />Lek <br />Bottom Right Freeboard Freeboard Freeboard <br />Sideslope <br />Width (R)} Sideslope Slope (%) <br />Depth (R) % of Depth Mult. x <br />Ratio Ratio (VxD) <br />5.00 3.0:1 3.0:1 50.0 0.30 <br />Riprap Channel Results: <br />• <br />Structure #4 (Null) <br /> <br />Simons/OSM Method -Steep Slope Desi <br /> w/o Freeboard ~w/ Freeboard <br />Design Discharge: 32.63 cfis <br />Depth: 0.23 R 0.53 ft <br />- Top Width: 6.38 ft 8.18 R <br />Velocity: <br />X-Section Area: 1.31 sq R <br />Hydraulic Radius: 0.202 <br />Froude Numbers: <br />Manning's n*: <br />Dmin: 3.00 in <br />D60: 9.00 in <br />Dmax: 11.25 in <br />Velocity and Manning's n calculations may not apply for this method. <br />r <br />S <br />~ f- 1 <br />/J ~y,. Y~ <br />Filename: Ditches to Pond 3-1.sal Printed 04-19-2001 <br />