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Water-Year Summary for Site 12089208

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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.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 46°54'01", long 122°29'50" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.01, T.16 N., R.2 E., Thurston County, WA, Hydrologic Unit 17110015, on left bank 1,000 ft downstream from headworks at dam, and 3.7 mi southeast of McKenna.
PERIOD OF RECORD - March 1979 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 330 ft above NGVD of 1929 (from topographic map) and is 319.56 ft above NAVD of 1988 (GNSS survey by USGS on Aug. 9, 2022). Prior to Oct. 20, 1999, at site 500 ft upstream at datum 10.00 ft lower.
REMARKS - Flow regulated by headworks 1,000 ft upstream from station. U.S. Geological Survey satellite telemeter at station. 
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 900 ft³/s, Nov. 11, 1990, gage height, 7.72 ft at datum then in use; minimum discharge, no flow on many days some years.