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USGS Water-Year Summary 2024
02394000 ETOWAH RIVER AT ALLATOONA DAM, ABOVE CARTERSVILLE, GA
LOCATION - Lat 34°09'46.7", long 84°44'27.9" referenced to North American Datum of 1983, Bartow County, GA, Hydrologic Unit 03150104, on right bank 0.8 miles downstream from Allatoona Dam, 2.0 miles upstream from Nashville, Chattanooga, & St. Louis Railway bridge, and 3.0 miles east of Cartersville.
DRAINAGE AREA - 1,122 mi².
REVISIONS HISTORY - WSP 1032: 1944. WDR GA-80-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: September 1938 to current year. Prior to October 1949, published as Etowah River above Cartersville.
GAGE HEIGHT: October 1998 to current year.
DISCHARGE: September 1938 to current year. Prior to October 1949, published as Etowah River above Cartersville.
GAGE HEIGHT: October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 686.88 feet above North American Vertical Datum (NAVD) of 1988. Prior to December 19, 1938, a non-recording gage was located at same site and datum.
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
REMARKS - Gage-height records are generally fair. Discharge records are generally fair except for estimated discharges, which are poor. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-ga_nwisweb_data_inquiries@usgs.gov.
Flow regulated by Allatoona Reservoir since December 1949. Statistics prior to regulation are available upon request.
Flow regulated by Allatoona Reservoir since December 1949. Statistics prior to regulation are available upon request.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 22,600 cfs, March 22, 1964; maximum gage-height recorded, 15.00 feet, March 22, 1964; minimum daily discharge, 132 cfs, March 14, 1993.
EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge recorded, 40,400 cfs, January 8, 1946, from rating curve extended above 26,000 cfs; maximum gage-height recorded, 20.80 feet, January 8, 1946; minimum daily discharge, 270 cfs, October 8,9,26,27, 1941.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - August 2001 to September 2009.
INSTRUMENTATION - Tipping-bucket raingage.
