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DESIGN PARAMETERS <br /> DIT <br />HE <br /> C <br />S AND DIVERSIONS <br /> Parameter Ditc h Identification Number <br /> Area (Acres) - Disturbed Actual <br /> Area (Acres) - Undisturbed Actual <br /> Curve Number - Disturbed Area 90 <br /> Curve Number - Undisturbed Area 69 <br /> Curve Number - 81 Reclaimed Area 68 <br /> Curve Number - 83 Reclaimed Area 64 <br /> Curve Number - 86 Reclaimed Area 72 <br /> Curve Number - Meighted (Where appropriate) Calculated <br /> Drainage Basin <br /> Time of Concentration Calculated <br /> Muskingum's Routing Parameters Calculated <br /> Precipitation <br /> Frequency, Duration 2-year, 24-hour <br />S (Inches) 1.2 <br /> Frequency, Duration 10-year, 24-hour <br /> (Inches) 1.7 <br /> Frequency, Duration 100-year, 24-hour <br /> (Inches) 2.4 <br /> Channel <br /> Design Precipitation Event <br /> Temporary Structures 2-year, 24-hour <br /> Permanent Structures 10-year, 24-hour <br /> 100-year, 24-hour <br /> Shape Trapezoidal/Triangular <br /> Slope Actual <br /> Freeboard 0.30' <br /> Channel Liner Grass for Design <br /> Purposes <br /> Riprap where required <br />i <br /> 23-58R Revised - August, 1991 <br />