Major Flood
455 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: PRAI2). 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
449 ft
Minor Flood
447 ft
Action Stage
444 ft
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 22, 2013 | 456.57 ft | — |
| May 23, 1943 | 455.9 ft | -9,999 cfs |
| Mar 22, 1979 | 455.8 ft | -9,999 cfs |
About This Gauge
NWS LID
PRAI2
River
Illinois River
County
Peoria, IL
Coordinates
40.6306°N, 89.6259°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 Peoria Lock and Dam?
The Illinois River at Peoria Lock and Dam 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 Illinois River at Peoria Lock and Dam?
The NWS-defined flood stage for Illinois River at Peoria Lock and Dam is 447 feet. Action stage begins at 444 feet. Moderate flooding starts at 449 feet, and major flooding at 455 feet.
How do I get alerts when Illinois River rises?
Download StormCast free on Google Play, go to River Gauges, and add Illinois River at Peoria Lock and 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 Illinois River at Peoria Lock and Dam gauge located?
The gauge is located in Peoria County, Illinois at coordinates 40.6306°N, 89.6259°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Illinois River
On This River
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Source & Notes
Data provided by: USACE, 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.