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<br />SEDCAD 4 for Windows <br />15 <br />Velocity and Manning's n calculatons may not apply for this method. <br />Structure #8 (Riprap Channel) <br />SEC. 28 DITCH 4 <br />Trapezoidal Riprap Channel Inputs: <br />Material: Riorao <br />Bottom left Right Freeboard Freeboard Freeboard <br />Sideslope <br />Width (R) R <br />i Sideslope Slape (Wo) <br />Depth (R) % of Depth Mult, x <br />at <br />o Ratio (VxD) <br />12.00 3.0:1 3.0:1 30.0 1.00 <br />Riprap Channel Results: <br />Simons/OSM Method -Steep Slope Design <br />r~ <br />I• <br /> w/o Freeboard w/ Freeboard <br />Design Diuharge: 18.69 cfs <br />Depth: 0.06 R 1.06 ft <br />Top Width: 12.39 R 18.39 R <br />Velocity*: <br />X-Section Area: 0.78 sq R <br />Hydraulic Radius: 0.063 ft <br />Froude Number*: <br />Manning's n*: <br />Dmin: 3.00 in <br />D50: 9.00 in <br />Dmax: 11.25 in <br />Velaity and Manning's n calculations may not apply for this method. <br />Structure #1 (Pond) <br />SEC, 28 SED TRAP 1 <br />PondInputr: <br />Inital Pool Elev: 8,219.80 ft <br />Initial Pool: 0.17 ac-ft <br />Emergency Soillwav <br />Spillway Elev Crest Length LeR Right Bottom <br />(ft) Sideslope Sideslope Width (R) <br />8,224.50 20.00 2.00:1 2.00:1 10.00 <br />Pond Results: <br />Filename: STSec28Hundred24.010807.sc4 <br />Exh. 7-20A-59 <br />Printed 01-OS-2007 <br />Revision Date: 1/05/07 <br />Revison No.: PR-02 <br />