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SEDCAD+ ERODIBLE CHANNEL DESIGN <br />------------------------------- <br />DITCH D-21C, 10-YEAR 24-HOUR STORM EVENT <br />Limiting Velocity Technique <br />Sediment-laden Water <br />INPUT VALUES: <br />Shape TRIANGULAR <br />Discharge 0.97 cfs <br />Slope 11.00 $ <br />Sideslopes 2.50:1 (L) 2.50:1 (R) <br />Manning's n 0.030 <br />Max. Velocity 5.50 fps <br />Material GRADED SILTS - COBBLES COLLOIDAL <br />Freeboard .3 ft <br />RESULTS: <br /> Actual Discharge 0.97 cfs <br /> Depth 0.30 ft <br /> with Freeboard 0.60 ft <br /> Top Width 1.48 ft <br /> with Freeboard 2.98 ft <br /> Velocity 4.40 fps <br />• Cross Sectional Area 0.22 sq ft <br /> Hydraulic Radius 0.14 ft <br /> Froude Number 2.01 <br /> <br /> D-48 Revised 05/23/94 <br />