USGS Water-Year Summary 2021
13057132 GREAT WESTERN CANAL SPILLBACK NEAR IDAHO FALLS, ID
LOCATION - Lat 43°36'03", long 112°03'43" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 SW 1/4 sec.12, T.3 N., R.37 E., Bonneville County, ID, Hydrologic Unit 17040201, Idaho Falls North quad., on right bank 3.2 mi north of Idaho Falls municipal powerplant, and 8 mi north of Idaho Falls.
PERIOD OF RECORD - September 1987 to current year, (prior to October 1988, discharge measurements and gage height record only).
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is arbitrary.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 761 ft³/s May 19, 1991; no flow for many days each year.