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Water-Year Summary for Site 11418000

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Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2020
11418000 Yuba River below Englebright Dam, near Smartsville, CA
LOCATION - Lat 39°14'07", long 121°16'23" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.23, T.16 N., R.6 E., Yuba County, CA, Hydrologic Unit 18020125, on right bank, 2,000 ft downstream from Englebright Dam, 0.5 mi upstream from Deer Creek, and 2.3 mi northeast of Smartsville.
DRAINAGE AREA - 1,108 mi².
REVISIONS HISTORY - WSP 1931: Drainage area. WDR CA-97-4: 1999 (instantaneous maximum discharge).
PERIOD OF RECORD - October 1941 to September 2006, and October 2007 to current year. Prior to October 1953, published as "at Narrows Dam." October 1953 to September 1969, published as "at Englebright Dam." If records for Deer Creek near Smartsville (station 11418500) since 1941 are added to records at this station, records equivalent to those published from 1903 to 1941 as "Yuba River at Smartsville" (station 11419000) can be obtained. WATER TEMPERATURE: Water years 1973-78, 2002-05. SEDIMENT DATA: Water years 2001 (daily), 2002-04 (storm season only).
GAGE - Water-stage recorder. Datum of gage is 278.68 ft above NGVD of 1929 (levels by International Engineering Co.). Prior to Sept. 19, 1958, at site 2,000 ft upstream at datum 248.31 ft higher, and Sept. 19, 1958, to Sept. 30, 1969, at datum 278.68 ft lower. Supplementary gage 2,000 ft upstream since Oct. 1, 1969, at Englebright Dam at datum 248.31 ft higher.
COOPERATION - Records were provided by Pacific Gas and Electric Company, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 1403.
REMARKS - Diversions up to 1,800 ft³/s (see stations 11413250, 11414190, and 11414200) out of basin for power and irrigation upstream from station. Flow regulation by Lake Spaulding (station 11414140), Jackson Meadows and New Bullards Bar Reservoirs (stations 11407800 and 11413515), Englebright Reservoir beginning in 1941, capacity, 54,339.8 acre-ft (revised), Bowman and Fordyce Lakes (stations 11415500 and 11414090), and many smaller reservoirs. See schematic diagram of South Yuba River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 171,000 ft³/s, Dec. 22, 1964, gage height, 546.14 ft, site and datum then in use, from rating curve extended above 25,000 ft³/s, on basis of computation of peak flow over spillway of dam at gage heights 544.72 and 546.14 ft; no flow at times in 1942, 1949, 1956, 1958-61, 1968-69.