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Open Channel Calculation - Trapezoidal Design <br /> Project: HARNEY LANE LANDFILL <br /> DESCRIPTION: CLOSURE DRAINAGE CALCULATIONS <br /> CALLS. ARE BASED ON MANNINGS FORMULA <br /> Notes: CAPACITY OF A V-DITCH .6 ' DEEP 10' TOP <br /> n VALUE: 0.030 <br /> s (SLOPE) : 0.0010 <br /> c/o (RATIO TO 1 ) : 8.30 <br /> DEPTH: 0.60 Ft. <br /> BOTTOM WIDTH: 0.00 Ft. <br /> Top Width: 9.96 Ft. <br /> ----- --------------e---------------------------------------------- <br /> Area: 2.99 Sq. Ft. <br /> Wetted Perimeter: 10.03 Ft. <br /> Hydraulic Radius: 0.2978 <br /> R" (2/3) : 0.4460 <br /> Velocity: 0.6986 fps <br /> Flow Quantity: 2.0873 cgs <br /> w II <br /> 'Z 0 <br />