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Water-Year Summary for Site 11441500

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Available Parameters
00060 Discharge(Mean)  

Water year 2019: 2018-10-01 to 2019-09-30

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USGS Water-Year Summary 2019
11441500 South Fork Silver Creek near Ice House, CA
LOCATION - Lat 38°49'08", long 120°21'51" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.12, T.11 N., R.14 E., El Dorado County, CA, Hydrologic Unit 18020129, in Eldorado National Forest, on right bank, 300 ft upstream from Peavine Creek, 0.4 mi downstream from Ice House Dam, and 4.8 mi northwest of Kyburz.
DRAINAGE AREA - 27.5 mi².
REVISIONS HISTORY - WSP 1395: 1928, 1938. WSP 1635: Drainage area at former site.
PERIOD OF RECORD - October 1924 to current year.
GAGE - Water-stage recorder and concrete control. Elevation of gage is 5,290 ft above NGVD of 1929, from topographic map. Prior to Oct. 1, 1959, at site 0.3 mi upstream at different datum.
COOPERATION - Records were collected by Sacramento Municipal Utility District, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2101.
REMARKS - Flow regulated by Ice House Reservoir (station 11441100) beginning in December 1959. Diversion to Jones Fork Powerplant starting April 1985 bypasses station and returns to Silver Creek at Union Valley Reservoir (station 11441001). See schematic diagram of South Fork American River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge prior to construction of Ice House Dam in 1959, 3,940 ft³/s, Dec. 23, 1955, gage height, 6.71 ft, site and datum then in use, from rating curve extended above 540 ft³/s, on basis of slope-area measurement at gage height 6.69 ft; no flow Oct. 31 to Nov. 9, 1958. Maximum discharge since construction of the dam, 7,530 ft³/s, May 16, 1996, gage height, 7.64 ft, from rating curve extended above 730 ft³/s, on basis of computation of flow over dam at gage height 5.66 ft; minimum daily, 1.2 ft³/s, Mar. 17-19, 1960.