USGS Water-Year Summary 2020
11461000 Russian River near Ukiah, CA
LOCATION - Lat 39°11'44", long 123°11'38" referenced to North American Datum of 1927, Mendocino County, CA, Hydrologic Unit 18010110, in Yokaya Grant, on right bank, 20 ft upstream from bridge on Lake Mendocino Drive, 0.4 mi upstream from East Fork, 0.6 mi downstream from York Creek, and 3.2 mi north of Ukiah.
DRAINAGE AREA - 100 mi².
- WSP 1929: Drainage area.
PERIOD OF RECORD - August 1911 to September 1913, October 1952 to current year. Monthly discharge only for some periods, published in WSP 1315-B.
CHEMICAL DATA: Water years 1977-79.
BIOLOGICAL DATA: Water years 1977-79.
WATER TEMPERATURE: Water years 1965-68.
SEDIMENT DATA: Water years 1964-68, 1991-92, 1994-97.
GAGE - Water-stage recorder. Datum of gage is 599.22 ft above NGVD of 1929 and 602.25 ft above NAVD of 1988. Prior to October 1952, nonrecording gage at bridge 20 ft upstream at different datum. Oct. 1, 1952, to Nov. 8, 1971, water-stage recorder at site 0.6 mi upstream at different datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 22,600 ft³/s, Dec. 30, 2005, gage height, 24.15 ft; no flow at times in many years.