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SEDCAD 4 for Windows <br />100. 1- 0- 1, I Q..i,--k <br />Velocity and Manning's n calculations may not apply for this method. <br />Structure #9 (Null) <br />Null <br />Structure #8 (Riprap Channel) <br />West Trib Reach 3 at Sta40 <br />Trapezoidal Riprap Channel Inputs: <br />Material: Riprap <br />Bottom Left Right Freeboard Freeboard Freeboard <br />Sideslope Sideslope Slope (%) <br />Width (ft) Ratio Ratio Depth (ft) % of Depth Mult. x (VxD) <br />12.00 3.0:1 3.0:1 7.8 <br />Riprap Channel Results: <br />Simons/OSM Method - Steep Slope Design <br />w/o Freeboard w/ Freeboard <br />Design Discharge: <br />22.89 cfs <br />Depth: <br />0.15 ft <br />Top Width: <br />12.91 ft <br />Velocity*: <br />X -Section Area: <br />1.89 sq ft <br />Hydraulic Radius: <br />0.146 ft <br />Froude Number*: <br />Manning's n*: <br />Dmin: <br />3.00 in <br />D50: <br />9.00 in <br />Dmax: <br />11.25 in <br />Velocity and Manning's n calculations may not apply for this method. <br />Structure #9 (Null) <br />Null <br />Structure #8 (Riprap Channel) <br />West Trib Reach 3 at Sta40 <br />Trapezoidal Riprap Channel Inputs: <br />Material: Riprap <br />Bottom Left Right Freeboard Freeboard Freeboard <br />Sideslope Sideslope Slope (%) <br />Width (ft) Ratio Ratio Depth (ft) % of Depth Mult. x (VxD) <br />12.00 3.0:1 3.0:1 7.8 <br />Riprap Channel Results: <br />Simons/OSM Method - Steep Slope Design <br />Velocity and Manning's n calculations may not apply for this method. <br />15 <br />Filename: TR -105r WTayPond PMT 10 24.sc4 Printed 06-18-2015 <br />Exh. 7-20C-48 Revision Date: 06/18/2015 <br />Revision No.: TR -105 <br />w/o Freeboard w/ Freeboard <br />Design Discharge: <br />34.81 cfs <br />Depth: <br />0.32 ft <br />Top Width: <br />13.89 ft <br />Velocity*: <br />X -Section Area: <br />4.08 sq ft <br />Hydraulic Radius: <br />0.292 ft <br />Froude Number*: <br />Manning's n*: <br />Dmin: <br />2.00 in <br />D50: <br />6.00 in <br />Dmax: <br />7.50 in <br />Velocity and Manning's n calculations may not apply for this method. <br />15 <br />Filename: TR -105r WTayPond PMT 10 24.sc4 Printed 06-18-2015 <br />Exh. 7-20C-48 Revision Date: 06/18/2015 <br />Revision No.: TR -105 <br />