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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
11293200 Middle Fork Stanislaus River below Sand Bar Diversion Dam, near Avery, CA
LOCATION - Lat 38°10'59", long 120°09'28" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.24, T.4 N., R.16 E., Tuolumne County, CA, Hydrologic Unit 18040010, in Stanislaus National Forest, on left bank, 100 ft downstream from Sand Bar Diversion Dam, and 8.5 mi west of Strawberry.
DRAINAGE AREA - 332 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1985 to current year (low-flow records only). Unpublished records for water years 1970, 1971, and 1976-85 available in files of the U.S. Geological Survey.
GAGE - Water-stage recorder and sharp-crested weir since February 1986. Elevation of gage is 2,700 ft above NGVD of 1929, from topographic map.
COOPERATION - Records were collected by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2130.
REMARKS - Records not computed above 100 ft³/s. Prior to October 2016, records not computed above 70 ft³/s. Flow regulated by Relief Reservoir and Donnell, Beardsley, and Pinecrest Lakes (stations 11291000, 11292600, 11292800, and 11295900, respectively). Most of the water is diverted at Sand Bar Diversion Dam for use at Stanislaus Powerplant (station 11295505). See schematic diagram of Stanislaus River Basin available from the California Water Science Center.
