USGS Water-Year Summary 2021
14153000 COTTAGE GROVE LAKE NEAR COTTAGE GROVE, OR
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.
- WSP 1218: 1950.
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.
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.