USGS Water-Year Summary 2022
02327355 OCHLOCKONEE RIVER AT GA 188, NEAR COOLIDGE, GA
LOCATION - Lat 31°00'08", long 83°56'21" referenced to North American Datum of 1983, Thomas County, GA, Hydrologic Unit 03120002, 3.1 mi upstream from confluence with Big Creek, 3.5 mi downstream from Bridge Creek, and 4.0 mi west of Coolidge.
DRAINAGE AREA - 260 mi².
PERIOD OF RECORD -
DISCHARGE: October 1981 to May 2009 (annual maximum only), June 2009 to current year.
GAGE-HEIGHT: October 1981 to May 2009 (annual maximum only), June 2009 to current year.
GAGE - Satellite telemtry with a water-stage recorder. Datum of gage is 166.42 feet above the North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment using GEOID09). Prior to June 2009, crest-stage partial record station at same datum.
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,450 cfs, April 2, 2009; maximum stage recorded, 18.59 feet, April 2, 2009; minimum daily discharge, 0.0 cfs, September 2-4, 13-25, 2011 and October 8-9, 2011.
PERIOD OF RECORD - August 2011 to current year.
INSTRUMENTATION - Tipping-bucket raingage.