USGS Water-Year Summary 2021
09522500 GILA GRAVITY MAIN CANAL AT IMPERIAL DAM, AZ-CA
LOCATION - Lat 32°52'34", long 114°27'18" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.30, T.6 S., R.21 W., Yuma County, AZ, Hydrologic Unit 15030107, Gila and Salt River meridian, on left bank 0.8 mi downstream from intake at east end of Imperial Dam.
PERIOD OF RECORD - August 1943 to current year.
GAGE - Water-stage recorder.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 2,240 ft³/s, May 25, 1965; no flow at canal intake at times in several years when intake gates were closed.