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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
02335810 CHATTAHOOCHEE RIVER AT MORGAN FALLS DAM, GA
LOCATION - Lat 33°58'06", long 84°22'58" referenced to North American Datum of 1983, Fulton County, GA, Hydrologic Unit 03130001, on upstream side of Morgan Falls Dam, 3.9 miles upstream from mouth of Sope Creek, at river mile 312.6.
DRAINAGE AREA - 1,370 mi².
REVISIONS HISTORY - WDR GA-90-1: 1988-89.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
GAGE HEIGHT: June 1988 to current year.
GAGE HEIGHT: June 1988 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 12.43 feet below North American Vertical Datum (NAVD) of 1988 (from GNSS survey).
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
REMARKS - Elevation records are generally good. 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 Lake Sidney Lanier since January 1956.
EXTREMES FOR PERIOD OF RECORD - Maximum gage-height recorded, 866.83 feet, June 28, 2018; minimum gage-height recorded, 856.07 feet, but was lower when gage-heights dropped below recordable range of stage, August 13, 2007. Extremes have been adjusted to current gage datum.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - January 2002 to September 2017.
INSTRUMENTATION - Tipping-bucket raingage.
