| |
LOCATION.--Lat 43 39'37", long 116 16'41", in SW1/4 NE1/4 NE1/4 sec.25,
T.4 N., R.1 E., Ada County, Hydrologic Unit 17050114, on left bank
175 ft upstream from Glenwood Bridge, 4.4 mi northwest of Boise,
and at mile 47.5.
DRAINAGE AREA.--2,800 mi2, approximately.
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 record due to irrigation
diversions between sites.
GAGE.--Water-stage recorder. 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 (sta 13201500). The New York, Ridenbaugh and eight
small canals (sta 13205995) divert between station "near Boise" (see
sta 13202000) and this station. Diversion above station for about
5,000 acres are outside the basin near Mountain Home.
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; minimum, 42 ft3/s Oct. 26, 1983.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Apr. 20, 1943 reached a
discharge of about 21,000 ft3/s.
Station operated in cooperation with U.S. Army Corps of Engineers.
|
|
