USGS Water-Year Summary 2020
13190500 SOUTH FORK BOISE RIVER AT ANDERSON RANCH DAM, ID
LOCATION - Lat 43°20'37", long 115°28'39" referenced to North American Datum of 1983, in SW 1/4 sec.11, T.1 S., R.8 E., Elmore County, ID, Hydrologic Unit 17050113, Anderson Ranch Dam quad., Boise National Forest, on right bank 600 ft upstream from Dixie Creek, 1.8 mi downstream from Anderson Ranch Dam, 2.2 mi northwest of Bennett, and at mile 41.5.
DRAINAGE AREA - 978 mi².
- WDR-US-2010: Drainage area.
PERIOD OF RECORD - April 1943 to current year (includes flow of Dixie Creek prior to October 1946).
GAGE - Water-stage recorder. Elevation of gage datum is arbitrary.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 9,850 ft³/s May 25, 1956, gage height, 10.56 ft; maximum gage height, 10.61 ft, May 13, 2017; minimum discharge, 0.10 ft³/s Nov. 13, 1959; minimum gage height, 0.99 ft, Feb. 16, 1950.
PERIOD OF RECORD - Continuous water temperature data were collected from October 2019 to current year.