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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
11525655 Trinity River below Limekiln Gulch, near Douglas City, CA
LOCATION - Lat 40°40'22", long 122°55'10" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.32, T.33 N., R.9 W., Trinity County, CA, Hydrologic Unit 18010211, on left bank, 1.8 mi northeast of Douglas City, 2.3 mi downstream from Limekiln Gulch, and 11.3 mi downstream from Lewiston diversion dam.
DRAINAGE AREA - 810 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1981 to September 1991, October 2002 to current year.
WATER TEMPERATURE: Water years 1981-91, 2004.
SEDIMENT DATA: Water years 1981-91, 2004-06.
WATER TEMPERATURE: Water years 1981-91, 2004.
SEDIMENT DATA: Water years 1981-91, 2004-06.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,665.30 ft above NAVD of 1988.
REMARKS - Flow regulated by Trinity Lake (station 11525400) and transbasin diversions 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, 12,800 ft³/s, April 28, 2017 gage height, 12.53 ft; minimum daily, 228 ft³/s, June 15, 1990.
