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USGS Water-Year Summary 2024
13206000 BOISE RIVER AT GLENWOOD BRIDGE NEAR BOISE, ID
LOCATION - Lat 43°39'38", long 116°16'45" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 NE 1/4 sec.25, T.4 N., R.1 E., Ada County, ID, Hydrologic Unit 17050114, Eagle quad., on left bank 175 ft upstream from Glenwood Bridge, 4.4 mi northwest of Boise, and at mile 47.5.
DRAINAGE AREA - 2,773 mi².
REVISIONS HISTORY - WDR-US-2010: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1938 to September 1940 (published as "at Strawberry Glen Bridge near Boise"), March 1982 to current year.
February 1940 to October 1982, station 13205500 "Boise River at Boise", at site 5.3 miles upstream, not equivalent due to irrigation diversions between sites.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2,600.00 ft above NGVD of 1929. April 1938 to September 1940, 0.30 mi downstream at different datum.
REMARKS - Flow regulated by Anderson Ranch Reservoir, Arrowrock Reservoir and Lucky Peak Lake (see station 13201500). The New York, Ridenbaugh and eight small canals (see station 13205995) divert between station "near Boise" (see station 13202000) and this station. Diversion above station for about 5,000 acres are outside the basin near Mountain Home.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Apr. 20, 1943 reached a discharge of about 21,000 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge observed prior to completion of Lucky Peak Dam in 1955, 13,000 ft³/s May 2, 1938; minimum observed, 19 ft³/s Dec. 3, 1939.
Maximum discharge since regulation, 9,840 ft³/s, June 13, 1983, gage height, 11.54 ft; maximum gage height, 11.93 ft, June 6, 2017; minimum discharge, 42 ft³/s Oct. 26, 1983.
