Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2025
02399500 COOSA RIVER AT LEESBURG, AL
LOCATION - Lat 34°10'36", long 85°45'14" referenced to North American Datum of 1927, Cherokee County, AL, Hydrologic Unit 03150105, at bridge on U.S. Highway 411, in pool in Weiss Reservoir, 1 mi east of Leesburg, and at river mile 226.1.
DRAINAGE AREA - 5,270 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1937 to September 1958. May 1988 to current year (elevations only). Gage-height records October 1959 to April 1988 are unpublished.
GAGE - Water-stage recorder. Datum of gage is 0.00 ft above NAVD of 1988, (Reference Frame NAD_83 (2011) (EPOCH:2010.0000) GEOID18).
Prior to March 5, 2025, the datum of gage from September 1958 to present was 517.77 ft NGVD of 1929.
REMARKS - Record considered good. Since December 1949, flow regulated by Allatoona Reservoir (station 02393500) 158.8 mi upstream. Stage affected by Weiss Reservoir since April 1961.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 73,200 ft³/s, Feb. 14, 1946, Jan. 24, 1947, gage height, 35.1 ft (former datum), from graph based on wire-weight gage reading; minimum daily discharge, 1,130 ft³/s, Oct. 24-26, 1941. Since May 1988, maximum elevation, 570.92, Feb 25, 2019; minimum elevation, 556.11 ft, Dec. 25, 1989.
AVERAGE DISCHARGE FOR PERIOD OF RECORD - 21 years (water years 1938-58), 8,161 ft³/s, 21.03 in/yr.
