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Open Channel Calculation - Trapesoidal Dasigo <br /> Project: HARNEY LANE LANDFILL <br /> DESCRIPTION; CLOSURE DRAINAGE CALCULATIONS <br /> CALCS. ARE BASED ON MANNINGS FORMULA <br /> Notes; CAPACITY OF A V-DITCH .7 ' DEEP 101 TOP <br /> n VALUE; 0.030 <br /> s (SLOPE) : 0.0010 <br /> s/s (RATIO TO 1 ) : 7.15 <br /> !, DEPTH: 0.70 Ft. <br /> BOTTOM WIDTH: 0.00 Ft. <br /> Top Width: 10.01 Ft. <br /> -------------------------------------------------------------------- <br /> Area; 3.50 S . Ft. <br /> Wetted Perimeter: 10. 11 Ft. <br /> Hydraulic Radius: 0.3466 <br /> R' (2/3) ; 0.4934 <br /> Velocity: 0.7729 fps <br /> Flow Quantity ; 2.7079 cfs <br /> Z� <br />