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SITE DITCHES AND CULVERTS <br />DITCH - C18 <br />Watershed data for watershed <br />#1 <br />Disturbed <br />Curve number <br />87.6 <br />Area <br />0.2 <br />Acres <br />Hydraulic length <br />240 <br />Feet <br />Elevation change <br />80 <br />Feet <br />Concentration time <br />0.01 <br />Hours <br />Concentration time type <br />SCS Upland Curves <br />Unit hydrograph <br />Disturbed <br />Total Area <br />0.2 <br />Acres <br />Storm data <br />Total precipitation <br />1.8 <br />Inches <br />Storm Type <br />SCS Type 2 storm, 24 hour storm <br />Peak discharge <br />0.08 <br />cfs <br />Flow from other ditches or culverts <br />8.17 <br />Culvert C12 <br />Peak discharge <br />8.25 <br />cfs <br />• _ .- -- - -- - - <br />PR -03 EXh -8 - 74ii - 5/99 <br />