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Water-Year Summary for Site 14155000

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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
62614 Elevation, lake/res, NGVD29(Obs.)  

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

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USGS Water-Year Summary 2023
LOCATION - Lat 43°47'10", long 122°57'15" referenced to North American Datum of 1927, Lane County, OR, Hydrologic Unit 17090002, on left end of Dorena Dam on Row River, 5.0 mi east of Cottage Grove, and at mile 7.61.
DRAINAGE AREA - 265 mi².
PERIOD OF RECORD - October 1949 to September 2003, October 2014 to current year.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (level by U.S. Army Corps of Engineers).
COOPERATION - Capacity table furnished by U.S. Army Corps of Engineers.
REMARKS - Reservoir is formed by earthfill dam with concrete outlet and spillway, completed in 1949 by U.S. Army Corps of Engineers; controlled storage began Oct. 11, 1949. Capacity, 77,580 acre-ft between elevations 739.0 ft, sill of outlet gates, and 835.0 ft, crest of spillway. Dead storage, 18 acre-ft below elevation 739.0 ft. Lake's primary purposes are flood risk management, water quality improvement, irrigation, fish and wildlife habitat, recreation, and improved navigation. Month-end contents and change in contents discontinued in water year 2014.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 95,550 acre-ft Dec. 23, 1964, elevation, 844.03 ft; minimum contents observed since filling, 159 acre-ft Dec. 14, 1970, elevation, 743.60 ft.