Major Flood
34 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: DONL1). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
30 ft
Minor Flood
27 ft
Action Stage
25 ft
What Floods at Each Level
38.2 ft
The net grade protection of the levee will be reached, threatening the city of Donaldsonville and surrounding countryside.
36.01 ft
Record stage for Donaldsonville was set on May 15, 1927.
33 ft
River barge traffic becomes dangerous, particularly when navigating sharp turns on this stretch of the river.
27 ft
Navigation becomes difficult for smaller river craft. Safety precautions for river traffic are urged.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| May 14, 1927 | 36.01 ft | — |
| May 15, 1922 | 34.75 ft | — |
| Apr 28, 1945 | 34.11 ft | — |
About This Gauge
NWS LID
DONL1
River
Mississippi River
County
Ascension, LA
Coordinates
30.1028°N, 90.9592°W
Get Flood Alerts for Mississippi 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 Mississippi River at Donaldsonville?
The Mississippi River at Donaldsonville gauge is maintained by USGS 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 Mississippi River at Donaldsonville?
The NWS-defined flood stage for Mississippi River at Donaldsonville is 27 feet. Action stage begins at 25 feet. Moderate flooding starts at 30 feet, and major flooding at 34 feet.
How do I get alerts when Mississippi River rises?
Download StormCast free on Google Play, go to River Gauges, and add Mississippi River at Donaldsonville 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 Mississippi River at Donaldsonville gauge located?
The gauge is located in Ascension County, Louisiana at coordinates 30.1028°N, 90.9592°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Mississippi River
On This River
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Source & Notes
Data provided by: U. S. Army Corps of Engieers, 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 24 hours into the future from the forecast issuance time.