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<br /> Table 3. Floodflows in Regional Streams <br /> (Based on Rainfall-Runoff Correlations and Streamflow Records) <br /> Drainage <br /> Name Area <br />General of (square 10-year 50-year lOO-year 500-year 100-year h <br />Drainage Station miles) cfs cfs cfs cfs (cfs/mi) <br />San Juan Animas River 1 <br />West of below <br />Continental Howardsvilly 72.5 1870 3160 3910 6740 53.9 <br />Divide Mineral Creek <br /> near Silvey ton 51.6 1490 2500 3090 5300 59.9 <br /> Cement Creek 2 20.7 800 1340 1640 2760 79.2 <br /> Uncompahgre River <br /> at Ridgeway 2 150.0 2060 3200 4200 6150 28.0 <br /> Uncompahgre River2 75.0 1280 1940 2590 3800 34.5 <br /> Uncompahgre River <br /> at Ouray 3 45.0 820 1280 1680 2480 37.3 <br /> Hermosa Creek <br /> near Hermosa 172.0 2200 3600 4400 6300 25.6 <br />North of Crystal River 4 <br />Gunnison at Placita <br />River 107.0 2200 2750 3150 5200 29.4 <br />Other 5 <br />South Fork of <br />Mountain Rio Grande at <br />Locations South Fork <br /> 217.5 2990 5080 6240 9680 28.7 <br /> <br />5 <br /> <br />Hua Federal Insurance Administration, Flood Insurance Study - Town of Silverton and <br />Unincorporated Areas of San Juan County, Colorado, March, 1978. <br />A & S Consultants, Inc. Floodplain Information Report, Uncompahgre River, Ouray to <br />Dallas Creek, Ouray County, Colorado, 1979. <br />Department of the Army, Corps of Engineers, Flood Hazard Information, Animas River <br />and Hermosa Creek, Hermosa, Colorado, 1977. <br />Wright Water Engineers, Inc., Flood Plain Information Report, Crystal River and Coal <br />Creek, Pitkin County, Colorado, 1979. <br />SCS, Flood Hazard Study, South Fork Rio Grande and Rio Grande in the Vicinity of <br />South Fork, Colorado, 1980. <br />cubic feet per second/square miles <br /> <br />2 <br /> <br />3 <br /> <br />4 <br /> <br />6 <br /> <br />Due to the very short histories of gaged flows in the study area, <br />regional curves were developed from these fifteen sites; and the <br />peak flows obtained from the regional curves were used for this <br />study. Table 4 lists peak flows used for this study on the Lake <br />Fork of the Gunnison River and Henson Creek. <br /> <br />8 <br />