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SITE DITCHES AND CULVERTS <br />DITCH - J12 <br /> <br />Watershed data for watershed #1 Disturbed <br /> Curve number 87 <br /> Area 0.3 Acres <br /> Hydraulic length 70 Feet <br /> Elevation change 12 Feet <br /> Concentration time 0.004 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Disturbed <br /> <br />Watershed data for watershed #2 Irrigated Hayfield <br /> Curve number 71 <br /> Area 6.4 Acres <br /> Hydraulic length 772 Feet <br /> Elevation change 60 Feet <br /> Concentration time 0.086 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Agricultural <br /> <br />Watershed data for watershed #3 Disturbed <br /> Curve number 87 <br /> Area 0.3 Acres <br /> Hydraulic length 335 Feet <br /> Elevation change 30 Feet <br /> Concentration time 0.031 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Disturbed <br /> <br />Total Area 7.0 Acres <br /> <br />Storm data <br /> Total precipitation 1.8 Inches <br /> Storm Type SCS Type 2 storm, 24 hour storm <br /> Peak discharge 1.13 cfs <br /> <br /> <br />Flow from other ditches or culverts 1.89 Ditch J13 <br /> <br />Peak dischar a 3.69 cfs <br />TR-45 Exh-8-180ix 04/07 <br />~9PPRou~ <br />7/3~a7 <br />