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Water-Year Summary for Site 02394000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30
 

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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.
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.
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.
REMARKS -
For period 10/01/2013 - 12/12/2018: Discharge records fair. Gage height records good.
For period 12/13/2018 - 02/25/2019: Discharge records good. Gage height records good.
For period 02/26/2019 - 05/28/2019: Discharge records fair, except those for estimated discharge, which are poor. Gage height records fair.
For period 05/29/2019 - 08/01/2019: Discharge records poor. Gage height records fair.
For period 08/02/2019 - 10/03/2019: Discharge records fair. Gage height records fair.
For period 10/04/2019 - 12/16/2019: Discharge records poor. Gage height records fair.
For period 12/17/2019 - 01/29/2021: Discharge records fair. Gage height records fair.

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.