Action Stage
17 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.
What Floods at Each Level
25 ft
Residences are threatened near the river in Marseilles.
17 ft
Water overflows low-lying banks just south of the river.
Impact statements from the National Weather Service, describing what typically happens at each water level.
Low-Water Impacts
10.5
Low water levels begin to impact shipping interests along the river.
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 |
|---|---|---|
| Jan 20, 1916 | 35.4 ft | 40,000 cfs |
| May 18, 2020 | 28.32 ft | 106,000 cfs |
| Apr 18, 2013 | 28.27 ft | 104,000 cfs |
About This Gauge
USGS Site
NWS LID
MRSI2
River
Illinois River
County
La Salle, IL
Coordinates
41.3270°N, 88.7171°W
Get Flood Alerts for Illinois 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 Illinois River at Marseilles?
The Illinois River at Marseilles gauge is maintained by USGS (site 05543500) 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 Illinois River at Marseilles?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Illinois River rises?
Download StormCast free on Google Play, go to River Gauges, and add Illinois River at Marseilles 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 Illinois River at Marseilles gauge located?
The gauge is located in La Salle County, Illinois at coordinates 41.3270°N, 88.7171°W. USGS site number: 05543500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Illinois River
More Resources
Source & Notes
Data provided by: US Army Corps of Engineers, Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers