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Water-Year Summary for Site 11246500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2021
11246500 Willow Creek at Mouth, near Auberry, CA
LOCATION - Lat 37°09'03", long 119°27'34" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.16, T.9 S., R.23 E., Madera County, CA, Hydrologic Unit 18040006, in Sierra National Forest, on left bank, 40 ft upstream from bridge, 0.4 mi upstream from mouth, 1.3 mi downstream from Whiskey Creek, and 4.3 mi northeast of Auberry.
DRAINAGE AREA - 130 mi².
PERIOD OF RECORD - January 1952 to September 1988, October 1989 to current year. WATER TEMPERATURE: Water years 1961-72.
GAGE - Water-stage recorder. Concrete control since Oct. 22, 1964. Replaced with 24" Parshall flume in concrete control, 10 feet by 47 feet wide by 3 feet high on Feb. 20, 2012. Elevation of gage is 1,174.69 ft above NGVD of 1929 (levels by Southern California Edison Co.).
COOPERATION - Records were collected by Southern California Edison Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2017.
REMARKS - Flow regulated by Bass Lake (station 11243400) 10 mi upstream. Soquel Ditch diverts up to 50 ft³/s from North Fork Willow Creek into Nelder Creek in Fresno River Basin. Flow diverted out of basin by Pacific Gas and Electric Co. Conduit No. 3. See schematic diagram of lower San Joaquin River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,700 ft³/s, Dec. 23, 1955, gage height, 28.5 ft, from floodmarks, from rating curve extended above 4,700 ft³/s, maximum gage height, 31.65 ft, Jan. 2, 1997 (backwater from San Joaquin River); no flow at times some years.