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SEDCAD 4 for Windows <br />r,....,.~„ht ~ooa _~nm c~..,oi~ I GMunh <br /> w/o Freeboard w/ Freeboard <br />Top Width: 12.27 ft <br />Velocity*: <br />X-Section Area: 0.81 sq ft <br />Hydraulic Radius: 0.066 ft <br />Froude Number*: <br />Manning's n*: <br />Dmin: 2.00 in <br />D50: 6.00 in <br />Dmax: 7.50 in <br />Velocity and Manning's n calculations may not apply for this method. <br />Structure #9 (Erodible Chann~ <br />Section 28 Col%ctor Ditch <br />Trapezoidal Erodible Channel Inputs: <br />Material: Shales and hardpans <br />Bottom Left Right Freeboard Freeboard Freeboard Limiting <br />Sideslope Sideslope Slope (%) Manning's n <br />Width (ft) Ratio Ratio Mult. x <br />Depth (ft) % of Depth Velocity <br />(fps) <br /> (VxD) <br />12.00 2.0:1 2.0:1 3.0 0.0250 6.0 <br />Erodible Channel Results: <br /> w/o Freeboard w/ Freeboard <br />Design Discharge: 34.41 cfs <br />Depth: 0.46 ft <br />Top Width: 13.84 ft <br />Velocity: 5.81 fps <br />X-Section Area: 5.93 sq ft <br />Hydraulic Radius: 0.422 ft <br />Froude Number: 1.56 <br />Filename: Sec2829Ditch 1024E.sc4 Printed 08-27-2008 <br />Exh. 7-20D-10 Revision Date: 08/27/08 <br />Revision No.: TR-75 <br />