Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 14153000

Click to hide Water-Year Summary instructions and information
  • 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 2021: 2020-10-01 to 2021-09-30

Print this page
USGS Water-Year Summary 2021
LOCATION - Lat 43°43'00", long 123°02'55" referenced to North American Datum of 1927, in NE 1/4 sec.28, T.21 S., R.3 W., Lane County, OR, Hydrologic Unit 17090002, in east abutment of dam on Coast Fork Willamette River, 5.8 mi south of Cottage Grove and at mile 29.7.
DRAINAGE AREA - 104 mi².
PERIOD OF RECORD - October 1942 to September 2003, October 2013 to current year. Prior to October 1971, published as Cottage Grove Reservoir near Cottage Grove.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by U.S. Army Corps of Engineers).
COOPERATION - Capacity table dated January 1968, furnished by U.S. Army Corps of Engineers.
REMARKS - Lake is formed by earthfill dam with concrete spillway completed by U.S. Army Corps of Engineers in 1942; storage began Oct. 31, 1942. Capacity, 32,930 acre-ft between elevations 719.0 ft (outlet conduit) and 791.0 ft (crest of spillway). Dead storage negligible. Lake's primary purposes are flood risk management, water quality improvement, irrigation, fish and wildlife habitat, and improved navigation. Month-end contents and change in contents discontinued water year 2014.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 36,750 acre-ft Dec. 24, 1964, elevation, 794.23 ft; minimum contents since first filling, no contents Sept. 26 to Oct. 19, 1966, and Nov. 14, 15, Nov. 20 to Dec. 8, 1969.