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Flint River near Thomaston, GA Water Level Today

Georgia · USGS gauge 02346180 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 02346180 sits on the Flint River and reads everything draining 1,220 square miles of the Upper Flint basin. Its datum sits 494 feet above sea level NAVD88. Daily flow has been on record here since 1966, 35 years of it.

Where this gauge sits in the drainage

Two gauged sites sit upstream of here. The closest is Flint River below Big Branch, near Molena, GA, reading 794 square miles. This gauge adds the 426 square miles that drain in between. Downstream the next reading comes from Flint River at US 19, near Carsonville, GA at 1,850 square miles, so what passes this gauge is about 66% of the water measured there.

Normal flows here

The Flint River runs a median of 857 cfs at this gauge across 35 years of record. March is the fullest month at a median 1,860 cfs, and September the leanest at 346 cfs. The highest daily mean on record is 37,800 cfs in 1971, and the lowest is 55 cfs in 1986.

Median flow by month
MonthMedian flowShare of annual median
Jan1,760 cfs205%
Feb1,750 cfs204%
Mar1,860 cfs217%
Apr1,560 cfs182%
May1,050 cfs123%
Jun723 cfs84%
Jul602 cfs70%
Aug520 cfs61%
Sep346 cfs40%
Oct393 cfs46%
Nov606 cfs71%
Dec1,060 cfs124%

Medians from the USGS daily-statistics record, 1966 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The Flint River reaches flood stage at this gauge at 11 feet. NWS starts watching it at 9 feet. The highest crest on record is 21.8 feet, in July 1994.

NWS flood categories
CategoryGage height
Action9 ft
Minor flooding11 ft
Moderate flooding13 ft
Major flooding15 ft
Highest crests on record
WhenCrest
July 199421.8 ft
November 194819.3 ft
February 190219.3 ft
March 197119 ft
March 199017.4 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge TMSG1. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 02346180. Percentile context computed against the gauge's period of record. Not for navigation.

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