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Structure Detail: <br />Structure #8 (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 5.9 0.0250 6.0 <br /> Erodible Channel Results: <br />w/o Freeboard w/ Freeboard <br />Design Discharge: 6.55 cfs <br />Depth: 0.52 ft <br />Top Width: 4.39 ft <br />Velocity: 5.77 fps <br />X-Section Area: 1.13 sq ft <br />Hydraulic Radius: 0.251 ft <br />Froude Number: 2.00 <br />Structure #6 (Culvert) <br /> Culvert 40A - Half Culvert <br /> Culvert Inputs: <br />Length (ft) Slope (%) Manning's n <br />Max. <br />Headwater <br />(ft) <br />Tailwater <br />(ft) <br />Entrance <br />Loss Coef. <br />(Ke) <br />300.00 52.00 0.0150 2.00 0.00 0.90 <br /> Culvert Results: <br />Design Discharge = 6.55 cfs <br />Minimum pipe diameter: 1 - 18 inch pipe(s) required <br />Structure #3 (Riprap Channel) <br /> C-1 Channel <br /> Trapezoidal Riprap Channel Inputs: <br />Material: Riprap <br />Filename: C-1 Channel 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