USGS Water-Year Summary 2021
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.
- WSP 1032: 1944. WDR GA-80-1: Drainage area.
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.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 686.92 feet above National Geodetic Vertical Datum (NGVD) of 1929 (levels by U.S. Army Corps of Engineers). 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.
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.
PERIOD OF RECORD - August 2001 to September 2009.
INSTRUMENTATION - Tipping-bucket raingage.