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~J <br />SUBBASIN B1-1 <br /> <br />Composite Runoff Curve Number Calculator <br />Description Area (ac) Curve Number <br />------------ ----------- -------------- <br />ROADS 3.3600 90 <br />FILL SLOPES 2.2400 50 <br />0.0000 0 <br />Total Area -----> 5.6000 74 <----- Weighted CN <br />