PROVISIONAL DATA SUBJECT TO REVISION

LOCATION.--Lat 43° 39'38", long 116° 16'45" (NAD83), in SW1/4 NE1/4 NE1/4 
   sec.25, T.4 N., R.1 E., Ada County, Eagle quad., 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 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.

Current shift-adjusted rating in tab-separated format.
These are updated daily and can change often! If you use these ratings it is important that you update often so that you have the most current version.
What is a shift-adjusted rating?

River forecasts and additional data are available at the National Weather Service Advanced Hydrologic Prediction Services web page.

Station operated in cooperation with U.S. Army Corps of Engineers.

Realtime Gage Height data is provided by U.S. Bureau of Reclamation telemetry.