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SEDCAD 4 for Windows <br />iD <br /> <br /> <br />Elevation <br />(g) <br />Broad- <br /> <br />crested Weir <br />(~) Combined <br />Total <br /> <br />Dixharge <br /> <br />(cfs) <br />7,860.00 0.000 0.000 <br />7,660.50 0.000 0.000 <br />7,661.00 0.000 0.000 <br />7,661.50 0.000 0.000 <br />7,862.00 0.000 0.000 <br />7,862.50 0.000 0.000 <br />7,863.00 0.000 0.000 <br />7,863.50 0.000 0.000 <br />7,869.00 0.000 0.000 <br />7,s6a.so o.ooo o.ooo <br />7,864.65 0.000 0.000 <br />7,864.70 0.000 0.000 <br />7,864.75 0.000 0.000 <br />7,664.80 0.000 0.000 <br />7,664.85 0.696 0.696 <br />7,865.00 5.530 5.530 <br />7,865.15 12.789 12.789 <br />Structure #20 (Riprap Channe%~ <br />SEC. 28 DITCH 12 <br />Trapezoidal Riprap Channel Inputs: <br />Material: Riorao <br />Left <br />Bottom Right Freeboard Freeboard Freeboard <br />Sideslope <br />Width (ft) Sideslope Slope (%) Mult. x <br />Ratio Ratio Depth (ft) % of Depth <br />(VxD) <br />12.00 3.0:1 3.0:1 25.0 1.00 <br />Riprap Channel Results: <br />Simons/OSM Method -Steep Slope Design <br /> w/o Freeboard w/ Freeboard <br />Design Discharge: 27.23 cfs <br />Depth: 0.14 R 1.14 ft <br />Top Width: 12.82 R 18.82 ft <br />velocity*: <br />X-Section Area: 1.70 s9 ft <br />Hydraulic Radius: 0.132 R <br />Froude Number*: <br />Manning'S n*: <br />Dmin: 3.00 in <br />Filename: STSec28HUndred24.010807.sc4 Printed 01-OB-2007 <br />Exh. 7-20A-54 Revision Date: ]/05/07 <br />Revison No.: PR-02 <br />• <br />• <br />