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CJ <br />SEDCAD 4 for Windows <br />c..,..,.~,.er moa-omo o~...o~~.i c.n~,~n <br />19 <br />Structure #25 (Nul/) <br />SEC. 21 DITCH 16 <br />Structure #Z7 (Nul/) <br />SEC. 21 NULL 6 <br />Structure #28 (Riprap Channel) <br />SEC. 11 DITCH 18 <br />Trapezoidal Riprap Channel Inputs: <br /> w/o Freeboard w/ Freeboard <br />Design Discharge: 3.86 cfs <br />Depth: 0.03 ft 1.03 ft <br />Top Width: 12.12 ft 16.12 ft <br />Vel«ity*: <br />X-Section Area: 0.35 sq ft <br />Hydraulic Radius: 0.029 f[ <br />Froude Number*: <br />Manning's n*: <br />Dmin: 2.00 in <br />D60: 6.00 in <br />Dmax: 7.50 in <br />Bottom Left Right Freeboard Freeboard Freeboard <br />Width (ft) Sideslope Sideslope <br />R Slope (°k) De <br />pth (ft) % of Depth Mult. z <br />Ratio atio (VxD) <br />12.00 2.0:1 2.0:1 22.9 1.00 <br />Riprap Channel Results: <br />Simons/OSM Method -Steep Slope Design <br /> <br />Velocity and Manning's n calculations may not apply for this method. <br />Structure #17 (Riprap Channel) <br />SEC. 21 DITCH 11 <br />Material: Riprap <br />Trapezoidal Riprap Channel Inputs: <br />f, J <br />Material: Riprap <br />Filename: STSec21Ten24.030607.sc4 <br />Exh. 7-20B-23 <br />Printed 03-09-2007 <br />Revision Date: 3/12/07 <br />Revision No.: PR-02 <br />