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• <br />SUBBASIN B1-3 10 YEAR STORM <br />Graphical Peak Discharge method <br />Given Input Data: <br />Description ..................... <br />Rainfall distribution ........... <br />Frequency ....................... <br />Rainfall, P (24-hours) .......... <br />Drainage area ................... <br />Runoff curve number, CN ......... <br />Time of concentration, Tc ....... <br />Pond and Swamp Areas ............ <br />Computed Results: <br />Initial abstraction, Ia ......... <br />Ia/P ............................ <br />Unit peak discharge, qu ......... <br />Runoff, 4 ....................... <br />Pond and swamp adjustment, Fp ... <br />Peak discharge, qp .............. <br /> <br />SUBBASIN B1-3 <br />Type II <br />10 years <br />2.4000 in <br />26.3000 ac <br />78 <br />0.2733 hrs <br />0.0000 % of Area <br />0.5641 in <br />0.2350 <br />634.6914 csm/in <br />0.7238 in <br />1.0000 <br />18.8792 cfs <br />