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SITE DITCHES AND CULVERTS <br /> <br />DITCH - C18 <br /> <br />Watershed data for watershed #1 Disturbed <br /> Curve number 87.8 <br /> Area 0.2 Acres <br /> Hydraulic length 240 Feet <br /> Elevation change 80 Feet <br /> Concentration time 0.01 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Disturbed <br /> <br />Total Area 0.2 Acres <br /> <br />Storm data <br /> Total precipitation 1.8 Inches <br /> Storm Type SCS Type 2 storm, 24 hour storm <br /> Peak discharge 0.08 cfs <br /> <br />Flow from other ditches or culverts 8.17 Culvert C12 <br /> <br />Peak discharge 8.25 cfs <br />• _ ._ -°- - <br />I• <br />PR-03 EXh-8 - 7411 - 5/99 <br />