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Structure Detail: <br />Structure #6 (Erodible Channel) <br /> Collom Haul Road Ditch South <br /> Triangular Erodible Channel Inputs: <br />Material: Shales and hardpans <br />Left <br />Sideslope <br />Ratio <br />Right <br />Sideslope <br />Ratio <br />Slope (%) Manning's n <br />Freeboard <br />Depth (ft) <br />Freeboard <br />% of Depth <br />Freeboard <br />Mult. x <br />(VxD) <br />Limiting <br />Velocity <br />(fps) <br />7.0:1 1.5:1 3.0 0.0250 6.0 <br /> Erodible Channel Results: <br />w/o Freeboard w/ Freeboard <br />Design Discharge: 1.38 cfs <br />Depth: 0.33 ft <br />Top Width: 2.78 ft <br />Velocity: 3.03 fps <br />X-Section Area: 0.45 sq ft <br />Hydraulic Radius: 0.159 ft <br />Froude Number: 1.32 <br />Structure #5 (Erodible Channel) <br /> C-9 Channel <br /> Triangular Erodible Channel Inputs: <br />Material: Shales and hardpans <br />Left <br />Sideslope <br />Ratio <br />Right <br />Sideslope <br />Ratio <br />Slope (%) Manning's n <br />Freeboard <br />Depth (ft) <br />Freeboard <br />% of Depth <br />Freeboard <br />Mult. x <br />(VxD) <br />Limiting <br />Velocity <br />(fps) <br />2.0:1 2.0:1 2.0 0.0250 2.49 6.0 <br /> Erodible Channel Results: <br />w/o Freeboard w/ Freeboard <br />Design Discharge: 1.63 cfs <br />Depth: 0.51 ft 3.00 ft <br />Top Width: 2.04 ft 12.00 ft <br />Velocity: 3.14 fps <br />X-Section Area: 0.52 sq ft <br />Hydraulic Radius: 0.228 ft <br />Filename: C-8 C-9 Channels 10-yr 24-hr.sc4 Printed 06-16-2021 <br />SEDCAD 4 for Windows <br />Copyright 1998 -2010 Pamela J. Schwab <br />Civil Software Design, LLC 5