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USGS Water-Year Summary 2024
13148200 LITTLE WOOD RESERVOIR NEAR CAREY, ID
LOCATION - Lat 43°25'31", long 114°01'38" referenced to North American Datum of 1983, in SW 1/4 sec.12, T.1 N., R.20 E., Blaine County, ID, Hydrologic Unit 17040221, Little Wood Reservoir quad., at gate-control structure near right end of Little Wood Dam on Little Wood River, 8.5 mi northwest of Carey, and at mile 78.8.
DRAINAGE AREA - 274 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1955 to current year.
GAGE - Water-stage recorder. Datum of gage is 5127.43 ft above NGVD of 1929, (levels by U.S. Bureau of Reclamation). Prior to April 1983, non recording gage at same site and datum.
REMARKS - Reservoir is formed by earth and rock-fill dam constructed in 1939 and raised 39.9 ft in 1959. Storage began Feb. 12, 1941. Capacity of reservoir is 29,960 acre-ft between elevations 5,127.4 ft, 0.4 ft below bottom of outlet gates, and 5,237.3 ft, spillway crest. Water is used for power generation and irrigation of land near Carey.
EXTREMES FOR PERIOD OF RECORD - Maximum contents observed, 31,100 acre-ft May 19, 2005, elevation, 5,239.19 ft, present datum; minimum contents (estimated), 23.8 acre-ft Sept. 2, 2021, elevation, 5129.49 ft, present datum, but may have been less during period Aug. 14 to Sept. 13, 1959.
