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USGS Water-Year Summary 2024
02382500 COOSAWATTEE RIVER AT CARTERS, GA
LOCATION - Lat 34°36'13.7", long 84°41'44.8" referenced to North American Datum of 1983, Murray County, GA, Hydrologic Unit 03150102, on downstream side of center bridge pier on US 411 at Carters, 200.0 feet upstream from Louisville & Nashville Railroad bridge, 0.4 miles downstream from Carters re-regulation dam, and 0.6 miles downstream from Talking Rock Creek.
DRAINAGE AREA - 521 mi².
REVISIONS HISTORY -
Gage datum was revised on October 15, 2024 based on an error in the determination of the gage datum.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: September 1896 to December 1908, October 1918 to September 1923, October 1961 to September 1972, October 1974 to current year. Monthly discharge only for October to November 1918 published in WSP 1304.
GAGE HEIGHT: October 1998 to current year.
DISCHARGE: September 1896 to December 1908, October 1918 to September 1923, October 1961 to September 1972, October 1974 to current year. Monthly discharge only for October to November 1918 published in WSP 1304.
GAGE HEIGHT: October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 655.20 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Navigation Satellite System equipment using GEOID12A). Prior to September 1923, a non-recording gage was located at a site 0.2 miles upstream at datum 2.00 feet higher.
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
REMARKS - Gage-height records are generally good. 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 Carters Lake and Carters re-regulation dam since November 1974.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of March 29 or 30, 1951, reached a stage of about 36 feet, from flood marks; discharge 57,000 cfs, from rating curve extended above 24,000 cfs.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 9,840 cfs, January 1, 2016; maximum gage height recorded, 20.69 feet, January 1, 2016; minimum daily discharge, 122 cfs, November 15, 1974.
EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge recorded, 28,500 cfs, November 19, 1906, observed; maximum gage height recorded, 30.60 feet, November 19, 1906, at present datum; minimum daily discharge, 173 cfs, September 19, 1896.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - March 2005 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
