Page Loading - Please Wait...
LOCATION.--Lat 44° 50'11", long 116° 53'58", (NAD83), in SE1/4SE1/4 sec.2, T.17 N., R.5 W., Washington County, Brownlee Dam quad., Hydrologic Unit 17050201, at Brownlee Dam on Snake River near Idaho end of dam, 1.1 mi upstream from Wildhorse River, 3.5 mi downstream from Brownlee Creek, 10.5 mi east of Halfway, Oregon, and at mile 285.0.
DRAINAGE AREA.--72,590 mi2, approximately.
PERIOD OF RECORD.--May 1958 to September 2005 (discontinued). Published as at Idaho-Oregon State line 1958-59.
GAGE.--Remote registering water-stage recorder. Datum of gage is NGVD of 1929 (levels by Idaho Power Co). Prior to Feb. 2, 1959, nonrecording gage or levels to water surface at present site and datum.
REMARKS.--Reservoir is formed by earthfill dam. Storage began May 5, 1958. Dam was completed in fall of 1958. Normal pool elevation, 2,077 ft. Water is used for power generation.
COOPERATION.--Reservoir elevations and capacity table furnished by Idaho Power Co. (Capacity table recomputed 1985).
EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 1,454,000 acre-ft
Aug. 6, 1962, elevation, 2,078.91 ft;
minimum since full capacity was attained June 23, 1959, 441,200 acre-ft
Apr. 25, 1971, elevation, 1,975.20 ft.