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Asb-3 <br />Average Slope: <br />• <br />2:1 side slopes = 507, x 1.80 Ac = 0.9 <br />top - flat = 07> x 1.47 Ac = 0.0 <br />Access Ramp = 7.597x 0.34 Ac = 0.0258 <br /> 2.57 x 0.43 Ac = 0.010 <br /> 4.04 Ac 0.9366 <br />0.9366 = 0.232 <br />or average slope = 23.27 <br />Slope Adjustment Factor from TR55 = 1.057, <br />Equivalent area = 1 = 209 '6 <br />where 1 = 1420 ft a = 24.57 <br />From Figure S-lA with CN = 80 & Area = 24.5 CFS = 33 <br />Eq Dischargel0 = 33 x 1.05 x 0.39 = 13.51 <br />Eq Discharge25 = 33 x 1.05 x 0.62 = 21.48 cfs <br />Actual Discharge10 = 13.51 2~ = 2.22 <br />• Actual Discharge25 = 21.48 ~ = 3.53 <br />These flows will be split roughly equal for each <br />side of the pile. For collector ditches, use: <br />Q10 = 1.5 cfs <br />Q25 = 2.0 cfs <br />For emergency spillway, use Q25 = 3.6 cfs <br /> <br />~,~'~ ~ <br />1- <br />- .yi,,t <br />