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• <br />• <br />• <br />DITCH HYDROLOGY CALCULATIONS <br />PERMANENT DIVERSION N0. 3 (PD-3) <br />Hydrology Input Values SWS PD-3 <br />(U r Section) SWS PD-3 <br />(Lower Section) <br />Preci itation Distribution SCS-Ty e II SCS-7y e II <br />Storm Duration (hours) 24 24 <br />Precipitation Amount <br />100-year, 24-hour event (in) <br />2.4 <br />2.4 <br />Hydrogra h Res onse Sha a Medium Medium <br />Drainage Basin Area (acres) 13.7 22.8 <br />Time of Concentration 0.105 0.259 <br />Curve Number 69 69 <br />Routing Coefficients <br />K (hours) <br />X <br />0.213 <br />0.228 <br />0 <br />0 <br /> <br />H drolo Results <br />Peak Discharge (cfs) <br />100-year, 24-hour event <br />5.59 <br />8.57 <br />APPROVEID APR 2 5 199`s <br />H:1857\ V OL.51D55. PLN <br />01/25/95 12:46pm Wp51/cmc <br />23-115 <br />Revised - 01/30/95 <br />iR~3 <br />