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Open Channel Calculation - "V" Design <br /> Project: FOOTHILL SANITARY LANDFILL <br /> DESCRIPTION: PRELIMINARY CLOSURE DRAINAGE CALCULATIONS <br /> CALCS. ARE BASED ON MANNINGS FORMULA <br /> Notes: CAPACITY OF A "V" DITCH 3/4 ' DEEP, 45' TOP <br /> n VALUE: 0. 030 <br /> s (SLOPE) : 0. 0250 <br /> s/s (RATIO TO 1) : 30. 00 <br /> DEPTH: 0. 75 Ft. <br /> BOTTOM WIDTH: 0. 00 Ft. <br /> Top Width: 45. 00 Ft. <br /> -------------------------------------------------------------------- <br /> Area: 16.88 Sq. Ft. <br /> Wetted Perimeter: 45. 02 Ft. <br /> Hydraulic Radius: 0. 3748 <br /> R^ (2/3) : 0.5198 <br /> Velocity: 4 . 0711 fps <br /> Flow Quantity: 68 .7001 cfs <br /> Design for South Ditch, Top of Landfill (Area T) <br />