Rivers in Georgia
St. Marys River at Moniac
Below flood stage
4.46ftStage
Observed Tue, Sep 22, 5:45 AM EDT
- Flood stage
- 12.00 ft
- Record crest
- 22.98 ft1973
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 17.00 ft |
| Moderate flood | 15.00 ft |
| Minor flood | 12.00 ft |
| Action | 10.00 ft |
- 17.00 ftTrailers and houses on both sides of the river become endangered.
- 15.00 ftFlooding begins to impact Mocassin Creek Circle on Florida side with some portions of the road becoming cut-off. Access roads on both sides of the river in Florida and Georgia begin to flood.
- 14.00 ftBethea State Forest campground sites completely flooded on Florida side and water begins to enter campground parking lot.
- 12.00 ftBethea State Forest campground sites begin to flood on the Florida side just north of the gage.
Crest history
166 crests on NOAA’s list since 1921.
| # | Date | Stage |
|---|---|---|
| 1 | April 5, 1973 | 22.98 ft |
| 2 | September 19, 1928 | 19.90 ft |
| 3 | August 24, 2008 | 19.15 ft |
| 4 | June 28, 2012 | 18.69 ft |
| 5 | September 13, 1964 | 18.41 ft |
| 6 | September 9, 2004 | 17.78 ft |
| 7 | March 30, 1970 | 17.57 ft |
| 8 | September 13, 2017 | 17.51 ft |
| 9 | February 18, 1998 | 17.03 ft |
| 10 | September 29, 2004 | 16.38 ft |
| 11 | October 22, 1950 | 16.20 ft |
| 12 | October 9, 1996 | 16.19 ft |
| 13 | August 7, 2021 | 15.53 ft |
| 14 | March 29, 1984 | 15.43 ft |
| 15 | May 4, 1964 | 15.36 ft |
| 16 | June 11, 1957 | 15.26 ft |
| 17 | September 9, 2014 | 15.16 ft |
| 18 | February 11, 1986 | 15.00 ft |
| 19 | April 2, 1962 | 14.88 ft |
| 20 | March 18, 1959 | 14.80 ft |
| 21 | October 2, 1929 | 14.70 ft |
| 22 | August 8, 2024 | 14.65 ft |
| 23 | July 31, 1921 | 14.54 ft |
| 24 | February 21, 1988 | 14.52 ft |
| 25 | April 4, 2009 | 14.47 ft |
Most recent crests
- March 12, 2025: 12.08 ft
- August 8, 2024: 14.65 ft
- April 13, 2024: 12.28 ft
- December 19, 2023: 14.00 ft
- September 4, 2022: 12.32 ft
- April 18, 2022: 13.00 ft
- April 9, 2022: 12.38 ft
- March 14, 2022: 12.72 ft
- November 8, 2021: 12.22 ft
- September 20, 2021: 12.05 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Southeast River Forecast Center. Forecasts are not available. Only observed stages are available for this point.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.