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Water-Year Summary for Site 02339400

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  • 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.
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Available Parameters
00045 Precipitation(Sum)  
00062 Elevation, reservoir(Max.,Min.,Mean)  
72036 Reservoir storage(Max.,Min.,Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 32°55'05.7", long 85°11'15.9" referenced to North American Datum of 1983, Troup County, GA, Hydrologic Unit 03130002, at forebay of dam on Chattahoochee River, 2.3 miles upstream from Oseligee Creek, 3.0 miles north of West Point, 3.2 miles upstream from bridge on US 29, and at mile 201.4.
DRAINAGE AREA - 3,440 mi². revised.
REVISIONS HISTORY - WDR GA-2013: Drainage area.
PERIOD OF RECORD - April 2007 to current year. Elevation records collected at same site from June 1975 to April 2007, in files of U.S. Army Corps of Engineers.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 0.00 feet above National Geodetic Vertical Datum (NGVD) of 1929.
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
For period 10/01/2013-11/28/2017: Elevation record good.
For period 11/28/2017-03/21/2018: Elevation record poor.
For period 03/21/2018-10/05/2020: Elevation record good.

Lake is formed by concrete gravity dam with earth dikes at either side. Spillway (crest elevation 597 feet) is equipped with six tainter gates 50 feet wide by 41 feet high. Storage began October 16, 1974; lake reached maximum power pool, 635 feet, on June 10, 1975. Total capacity at elevation, 641 feet; maximum flood control pool, 774,800 acre-feet Capacity at elevation, 635 feet, maximum power pool, 604,500 acre-feet Dead storage below elevation 620 feet, minimum power pool, 298,400 acre-feet Lake is used for flood control and power. Capacity table furnished by U.S. Army Corps of Engineers.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum contents, 639,900 acre-feet, May 2003; maximum elevation, 636.34 feet, May 2003; minimum contents, since first filling, 295,200 acre-feet, November 8, 1985; minimum elevation, 619.80 feet, November 8, 1985.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 722,300 acre-feet, September 24, 2009; maximum elevation recorded, 639.26 feet, September 24, 2009; minimum contents, 326,000 acre-feet, October 17, 2007; minimum elevation recorded, 621.72 feet, October 17, 2007.
PERIOD OF RECORD - April 2007 to current year.
INSTRUMENTATION - Tipping-bucket raingage.