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<br />PR-07 <br />SITE DITCHES AND CULVERTS <br />DITCH - B18 <br /> <br />Watershed data for watershed #1 Disturbed <br /> Curve number 87.6 <br /> Area 1.2 Acres <br /> Hydraulic length 760 Feet <br /> Elevation change 100 Feet <br /> Concentration time 0.06 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Disturbed <br /> <br />Total Area 1.2 Acres <br /> <br />Storm data <br /> Total precipitation 1.8 Inches <br /> Storm Type SCS Type 2 storm, 2 4 hour storm <br /> Peak discharge 0.95 cfs <br /> <br /> <br />Flow from other ditches or culverts 3.56 C-611 <br /> 0.86 D-B17 <br /> <br />Peak discharge 5.37 cfs <br />Exh-8 - 51 - <br />2/03 <br />