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• <br />• <br />• <br />DITCH HYDROLOGY CALCULATIONS <br />DITCH G1 <br />Drainage Area (acres) <br />Maximum Elevation (ft) <br />Minimum Elevation (ft) <br />Drainage Height (ft) <br />Hydraulic Length (ft) <br />Average Slope (%) <br />Slope Adjustment Factor <br />Sub Area Acres <br />~sb urged ~f5~4 <br />Undisturbed B 0.65 <br />Undisturbed C 21.14 <br />Average Curve Number <br />Average Runoff (in) <br />10-year, 24-hour event <br />25-year, 24-hour event <br />100-year, 24-hour event <br />Equivalent Area (acres) <br />Equivalent Peak Discharge (cfs/in) <br />Actual Peak Oischarge (cfslin) <br />Peak Discharge (cfs) <br />10-year. 24-hour event <br />25-year, 24-hour event <br />100-year, 24-hour event <br />47.13 <br />8,225 <br />8,160 <br />65 <br />1,070 <br />6.1 <br />1.08 <br />Curve Number <br />~6 - <br />78 <br />87 <br />92 <br />0.97 <br />1.24 <br />1.69 <br />15.22 <br />20 <br />66.9 <br />65 <br />83 <br />113 <br />23-33 <br />