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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
11149400 Nacimiento River below Nacimiento Dam, near Bradley, CA
LOCATION - Lat 35°45'41", long 120°51'16" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.14, T.25 S., R.10 E., San Luis Obispo County, CA, Hydrologic Unit 18060005, on Camp Roberts Military Reservation, on left bank, 2.2 mi downstream from Nacimiento Dam, and 7.6 mi southwest of Bradley.
DRAINAGE AREA - 329 mi².
REVISIONS HISTORY - WDR CA-84-2: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1957 to current year.
CHEMICAL DATA: Water years 1963-66.
GAGE - Water-stage recorder. Datum of gage is 591.97 ft above NAVD of 1988.
REMARKS - Flow regulated by Lake Nacimiento (formerly Nacimiento Reservoir) beginning in February 1957, usable capacity, 340,000 acre-ft. No diversion upstream from station. See schematic diagram of Salinas River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 8,220 ft³/s, Feb 22, 2017, gage height, 12.26 ft; no flow at times in 1958-63, 1965, 1977, 1990.
