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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
09429600 COLORADO RIVER BELOW LAGUNA DAM, AZ-CA
LOCATION - Lat 32°48'44", long 114°30'51" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.35, T.15 S., R.24 E., Imperial County, CA, Hydrologic Unit 15030107, San Bernardino meridian, on right bank 1.4 mi downstream from Laguna Dam, 2.8 mi northeast of Bard, CA, and 10 mi northeast of Yuma, AZ.
DRAINAGE AREA - 188,600 mi² of which 4,000 mi² probably is noncontributing. the Great Divide basin in southern Wyoming is noncontributing.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1971 to current year.
GAGE - Water-stage recorder. Datum of gage is 123.05 ft above NAVD of 1988.
REMARKS - Record is rated fair. Natural flow of the Colorado River at this point is affected by transmountain diversions, storage reservoirs, power developments, ground-water withdrawals, diversions for irrigation, municipal, and industrial uses, and return flows from irrigated areas. Flow past station consists mainly of water released through Imperial Dam, sludge from the desilting basins at Imperial Dam, seepage through Imperial Dam, and seepage from the All-American Canal and the Gila Gravity Main Canal.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge of 30,900 ft³/s on August 19, 1983; minimum daily discharge of 71 ft³/s on May 29, 1973.
