Major Flood
475 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
470 ft
Minor Flood
467 ft
Action Stage
465.5 ft
What Floods at Each Level
475 ft
Extensive lakeside flooding occurs. Many access roads flood...as well as many permanent residences.
473.5 ft
Some flooding of permanent structures occurs around the lake.
467 ft
Flooding of some boathouses and docks around the lake occurs.
465.5 ft
Some minor flooding of lakeside property...including piers and boat ramps...occurs.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
453.5 Ft
Bottom of conservation pool.
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 5, 1977 | 475.31 ft | — |
| Feb 18, 1990 | 473.05 ft | — |
| Mar 18, 1980 | 472.61 ft | — |
About This Gauge
Get Flood Alerts for Coosa River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Coosa River at Logan Martin Dam?
The Coosa River at Logan Martin Dam gauge is maintained by USGS (site 02405200) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Coosa River at Logan Martin Dam?
The NWS-defined flood stage for Coosa River at Logan Martin Dam is 467 feet. Action stage begins at 465.5 feet. Moderate flooding starts at 470 feet, and major flooding at 475 feet.
How do I get alerts when Coosa River rises?
Download StormCast free on Google Play, go to River Gauges, and add Coosa River at Logan Martin Dam to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Coosa River at Logan Martin Dam gauge located?
The gauge is located in St. Clair County, Alabama at coordinates 33.4092°N, 86.3381°W. USGS site number: 02405200. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Coosa River
On This River
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.