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� <br />PIPE DIAM. (D), VELOCITY (V), SLOPE (S) OR FLOW (Q) <br />BASED ON MANNINGS FORMULA AND KNOWN VARIABL�'�. <br />GIVEN <br />Q = 0.87 cfs <br />V = 2.00 fp <br />S = 1.00% <br />D = 8.00 in <br />n = 0.0140 <br />CALCUZATED <br />1.13 cfs <br />3.22 fp <br />0.39% <br />7.26 in <br />77% of capacity <br />1.10 3.55 fps <br />3.91 in <br />