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• <br />• <br />• <br />DESIGN PARAMETERS <br />TEMPORARY DITCHES AND DIVERSIONS <br />Parameter <br />Area (Acres) - Disturbed <br />Area (Acres) - Undisturbed (B Type Soil) <br />Area (Acres - Undisturbed (C Type Soil) <br />Curve Number - Disturbed Area <br />Curve Number - Undisturbed Area (B Type Soil) <br />Curve Number - Undisturbed Area (C Type Soil) <br />Drainage Basin <br />Maximum Elevation <br />Minimum Elevation <br />Slope Adjustment Factor <br />Hydraulic Length <br />Precipitation <br />Frequency, Duration <br />(Inches) <br />Frequency, Duration <br />(Inches) <br />Channel <br />Design Precipitation Event <br />Shape <br />Slope <br />Freeboard <br />Actual <br />Actual <br />Actual <br />96 <br />18 <br />87 <br />Actual <br />Actual <br />Calculated <br />Actual <br />10-year. 24-hour <br />1.7 <br />100-year, 24-hour <br />2.5 <br />10-year, 24-hour <br />100-year, 24-hour <br />Where Applicable <br />Trapezoidal <br />Actual <br />1.0 <br />23-8 <br />