Mississippi River at LaGrange
Missouri — Water Level & Flood Stage
Located in Lewis County, Missouri on the Mississippi River. Live water level data from USGS, updated every 15 minutes.
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: LGRM7). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
25 ft
Moderate Flood
23 ft
Minor Flood
17 ft
Action Stage
16 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
30.8 ft
Water will begin entering the front door of the Lions Club near this height.
28.4 ft
The main floor of La Grange City Hall begins flooding near this height.
26 ft
Near this height several homes and businesses along the east side of Business 61 / Main Street in northern LaGrange begin flooding.
24.8 ft
At the Consolidated Grain & Barge plant, at this height water will begin overtopping the flood wall protecting the dryer area.
24.5 ft
The base of La Grange Public Library at Main Street and Washington Street begins flooding near this height.
23.6 ft
At this height, the storage area of the shed on Marion Street begins flooding.
20.7 ft
Missouri Route B is closed from Route C in LaGrange south to near the intersection with U.S. Highway 61.
20.1 ft
At this height water will begin flooding the foundation of a utility storage building on Marion Street.
19.5 ft
BNSF Railroad main line begins to flood near the river gage in La Grange.
19.3 ft
Water begins covering the lower utility road between the Consolidated Grain & Barge elevators and the river channel.
18.5 ft
Near this height, 3rd Street begins flooding near the casino parking lot.
18.1 ft
Wharf Street begins flooding at this height just upstream from the Consolidated Grain & Barge plant.
18 ft
The entrance to the lower parking lot at the Mark Twain Casino begins flooding near this height, requiring the use of an alternate entrance.
17.5 ft
Front Street, providing access to elevated riverfront homes in south La Grange near the casino, begins flooding near this height. Also, the alley behind several homes and businesses along Main Street (Hwy B) begins flooding at this height.
16.5 ft
The lower portions of the Mark Twain Casino parking lot begin to flood near this height.
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 |
|---|---|---|
| Jul 12, 1993 | 30 ft | — |
| Jul 12, 1993 | 30 ft | — |
| Jun 17, 2008 | 28.6 ft | -9,999 cfs |
| Jun 17, 2008 | 28.6 ft | -9,999 cfs |
| Jun 1, 2019 | 28.15 ft | 413,000 cfs |
About This Gauge
NWS LID
LGRM7
River
Mississippi River
County
Lewis, MO
Coordinates
40.0397°N, 91.4974°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 LaGrange?
The Mississippi River at LaGrange 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 LaGrange?
The NWS-defined flood stage for Mississippi River at LaGrange is 17 feet. Action stage begins at 16 feet. Moderate flooding starts at 23 feet, and major flooding at 25 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 LaGrange to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Mississippi River at LaGrange gauge located?
The gauge is located in Lewis County, Missouri at coordinates 40.0397°N, 91.4974°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US 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 24 hours into the future from the forecast issuance time.
- 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.
- For the latest navigation status update from the U.S. Army Corps of Engineers-St. Louis District, <a href="http://www.mvs.usace.army.mil/Missions/Navigation/Status-Reports/">click here.</a>