USGS Water-Year Summary for Site 02349605

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	Available Parameters
	00045 Precipitation(Sum)
	00045 Precipitation(Sum) [Operational]
	00060 Discharge(Mean)
	00065 Gage height(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

02349605 FLINT RIVER AT GA 26, NEAR MONTEZUMA, GA

LOCATION - Lat 32°17'35", long 84°02'37" referenced to North American Datum of 1983, Macon County, GA, Hydrologic Unit 03130006, near left bank on downstream end of pier of bridge on GA 26, 1,250 feet downstream from Central of Georgia Railway bridge, 850 feet downstream from Seaboard Coast Line Railroad (formerly Atlanta, Birmingham and Coast) bridge, 1.08 mi upstream from confluence with Spring Creek, 950 feet downstream from confluence with Beaver Creek, 0.3 mi downstream from confluence with Buck Creek, 1.0 mile southwest of Montezuma, and at mile 180.3.

DRAINAGE AREA - 2,920 mi².

REVISIONS HISTORY - WSP 822: Drainage area. WSP 852: 1936(M). WSP 1504: 1905-9, 1911-12, drainage area (at site used prior 1912). WDR GA-82-1: 1981(P).

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE:October 1904 to December 1912 (published as "near Montezuma"), July 1930 to September 2002 (published as station 02349500 Flint River at Montezuma, GA). October 1, 2002 to current year. Monthly discharge only for January to December 1910, published in WSP 1304.
GAGE-HEIGHT:October 1998 to September 2002 (published as station 02349500 Flint River at Montezuma, GA). October 2002 to current year.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 255.37 feet above National American Vertical Datum (NAVD) of 1988. From January 1905 to December 1909, and from January 1911 to December 1912, a non-recording gage was located at a site 1.5 miles upstream at same datum. From July 1, 1930 to June 30, 1933, and from October 1, 1934 to December 12, 1941, a non-recording gage was located at the site. From December 13, 1941 to October 25, 1955, a water-stage recorder was located at a site 500 feet downstream at same datum. From October 25, 1955 to September 30, 2002, a water stage recorder was located 2,250 feet upstream of current location at the same datum.

COOPERATION -
STREAMGAGE: U.S. Army Corps of Engineers, Mobile District; Crisp County Power Commission. WATER-QUALITY: Georgia Department of Natural Resources, Environmental Protection Division.

REMARKS - Gage-height records are generally good. Discharge records are generally good 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.

Prior to December 31, 1963, when operation was discontinued, moderate diurnal fluctuation at low flow caused by power plant above station.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood on March 2, 1897, reached a stage of 26.0 feet at former site with a discharge of 97,000 cfs, determined from rating curve extended above 10,000 cfs on basis of peak flows passing upstream and downstream stations (from National Weather Service). Flood on March 17, 1929, reached a stage of 27.4 feet at the present site with a discharge of 92,300 cfs, determined from a rating curve extended above 65,000 cfs (from National Weather Service).

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 130,000 cfs, July 8, 1994; maximum gage-height recorded, 34.11 feet, from floodmarks, July 8, 1994; minimum daily discharge, 408 cfs, August 26, 2000.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - October 2002 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - January 2000 to current year.

COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.

REMARKS - Analyzing agency is represented by the five-digit code listed under USGS Water Science Center special parameter code 99920. Laboratory analyses with analyzing agency code 81341 are by the Laboratory Services Section, Environmental Protection Division, Georgia Department of Natural Resources. Field determinations of Discharge, Specific Conductance, pH, Water Temperature, Air Temperature, and Dissolved Oxygen are by the U.S. Geological Survey.