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Calculation of Peak Discharge <br /> <br />Ditch No. 1 <br />Curve Number - 78 <br />Average Slope - 35% <br />Soil Type - Archuleta-Sanchez Complex <br />Soil Group - D <br />Juniper Grass Cover - 55% <br />L25 + L50 + L75 <br />Slope .25Z <br />Drainage Area <br />L25 @ 7,471' Elev. = 24,290' <br />L50 @ 7,848' Elev. = 19,220' <br />L75 @ 8,224' Elev. = 4,442' <br />• <br />Slope Adjustment Factor - <br />Runoff - <br />Equivalent Area from <br />Watershed Adjustment Factor - <br />Equivalent Peak Flow - <br />Adjusted Peak Flow - <br />1.28 <br />1.50 inches <br />1,579 Acres <br />600 cfs/inch of runoff <br />872 cfs <br />• <br />-2- <br />