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Water-Year Summary for Site USGS 11526250

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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.
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Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2021
11526250 Trinity River at Junction City, CA
LOCATION - Lat 40°43'43", long 123°03'39" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.12, T.33 N., R.11 W., Trinity County, CA, Hydrologic Unit 18010211, on left bank, 0.4 mi upstream from Canyon Creek, 0.5 mi southwest of Junction City, and 1.3 mi downstream from Oregon Gulch.
DRAINAGE AREA - 1,057 mi².
PERIOD OF RECORD - October 2002 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,445 ft above NGVD of 1988.
REMARKS - Flow regulated by Trinity Lake (station 11525400) and transbasin diversion to Judge Francis Carr Powerplant (station 11525430). Small diversion for irrigation upstream from station. See schematic diagram of Klamath River and Trinity River Basins available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 18,200 ft³/s, Feb. 27, 2019, gage height, 12.44 ft; maximum gage height, 14.24 ft, Dec. 30, 2005; minimum daily, 281 ft³/s, Oct. 22, 2014.