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SITE DITCHES AND CULVERTS <br />DITCH - H1 <br />Watershed data for watershed #1 Disturbed <br /> Curve number 87 <br /> Area 0.7 Acres <br /> Hydraulic length 869 Feet <br /> Elevation change 20 Feet <br /> Concentration time 0.16 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Disturbed <br /> <br />Watershed data for watershed #2 Derelict <br /> Curve number 74 <br /> Area 0.8 Acres <br /> Hydraulic length 640 Feet <br /> Elevation change 50 Feet <br /> Concentration time 0.06 Hours <br /> ConcenVaGon time type SCS Upland Curves <br /> Unit hydrograph Agriculture <br /> <br />Watershed data for watershed #3 Irrigated Haylands <br /> Curve number 71 <br /> Area 3.3 Acres <br /> Hydraulic length 770 Feet <br /> Elevation change 60 Feet <br /> Concentration time 0.08 Hours <br /> Concentration time type SCS Upland Curves <br /> Unit hydrograph Agriculture <br /> <br />Total Area 4.6 Acres <br /> <br />Storm data <br /> Total precipitation 1.8 Inches <br /> Storm Type SCS T e 2 storm, 24 hour storm <br /> Peak discharge 1.06 cfs <br /> <br />Flow from other ditches or culverts 0.89 Pond F dewatering pipe (402 g pm <br /> 0.00 Ditch F3 <br /> 0.62 Ditch H2 <br /> 0.50 Mine Discharge <br />Peak disc har a 3.07 cfs <br /> <br />Exh-8-172 <br />04/07 <br />TR-46 <br />.9PPRovsD <br />7~3 Ja"~ <br />