Laserfiche WebLink
• <br />• <br />L J <br />DITCH HYDROLOGY CALCULATIONS <br />DITCH Al <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 />Disturbed 1~ <br />Undisturbed C 0.3 <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 Discharge (cfs/in) <br />Peak Discharge (cfs) <br />10-year, 24-hour event <br />25-year, 24-hour event <br />100-year. 24-hour event <br />1.3 <br />8,251 <br />8,220 <br />31 <br />250 <br />12.4 <br />0.97 <br />Curve Number <br />96 <br />87 <br />94 <br />1.12 <br />1.40 <br />1.81 <br />1.3 <br />3.6 <br />3.5 <br />4 <br />5 <br />7 <br />23-26 <br />