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Open Channel Calculation -. 'IV" Design <br /> Project: FOOTHILL SANITARY LANDFILL <br /> DESCRIPTION: PRELIMINARY CLOSURE DRAINAGE CALCULATIONS <br /> CALCS . ARE BASED ON MIANNINGS FORMULA <br /> Notes: CAPACITY OF A 'IV" DITCH 3/41 DEEP, 301 TOP <br /> n VALUE: 0 . 030 <br /> s (SLOPE) : 0 . 0530 <br /> s/s (RATIO TO 1) : 20 . 00 <br /> DEPTH: 0 .75 Ft. <br /> BOTTOM WIDTH: 0. 00 Ft. <br /> Top Width: 30 - 00 Ft. <br /> -------------------------------------------------------------------- <br /> Area: 11. 25 Sq. Ft. <br /> Wetted Perimeter: 30 . 04 Ft. <br /> Hydraulic Radius: 0. 3745 <br /> R- (2/3) : 0. 3196 <br /> Velocity: 6. 0357 fps <br /> Flow Quantity: 67 - 9011 cfs <br /> Design for West Ditch, Top of Landfill (Area j) <br />