Major Flood
28 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: PIAI2). 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
22 ft
Minor Flood
18 ft
Action Stage
17 ft
What Floods at Each Level
35.2 ft
Komatsu levee overtops.
30.6 ft
The Peoria Sanitary District Levee overtopped at 30.6 feet.
30 ft
Water overtops the levee at the Pekin sewage treatment plant.
29 ft
Water overtops Pekin and LaMarsh levee at the railroad crossing. Constitution Avenue becomes inundated.
28.7 ft
Four blocks of Water Street in Peoria are inundated.
28.5 ft
Water reaches the lowest door sill elevations in the 300 block of SW Water Street in Peoria.
28 ft
Entire Length of Lake Street in Spring Bay is inundated. Water crosses Sunset Drive near Spring Beach Road.
27.5 ft
Water begins to flood the 100 block of NE Water Street in Peoria.
27 ft
Water begins to flood the 300 block of SW Water Street in Peoria. Water begins to impact homes on Millpoint Road and Sunset Drive in the Spring Bay Township.
26.5 ft
Several houses in Rome and Chillicothe become isolated. Homes on Sunset Drive between North Avenue and Collins Avenue...4 miles SSW of Bay View Gardens...are surrounded by water. In Spring Bay...North Lake Street from Missouri Street to Zimmerman Road is flooded.
26.4 ft
Water reaches the lowest door sill elevation of Peoria's historic River Station building on Water Street.
26 ft
Water inundates road by the railroad track north of the Pekin treatment plant. Liberty Park in Peoria is flooded.
25.6 ft
Water crosses South Darst Street in Peoria.
25.1 ft
A portion of Layne Crossing and North Street are closed in the Rome and Chillicothe areas. Poplar Lane floods in Peoria Heights.
25 ft
Damage begins at Pekin sewage treatment plant. Minor property damage in Peoria by the river.
24.5 ft
A portion of River Beach Drive and Second Street become flooded in the Chillicothe and Rome areas.
24 ft
Water begins to cover some streets in East Peoria.
23 ft
Some secondary roads affected in Peoria county and damage begins to buildings in Rome.
22.7 ft
Flooding begins to low lying areas in Peoria Heights and Peoria's Riverfront Park.
18 ft
Some flooding begins to bottomland not protected by levees.
17.5 ft
Water approaches Spring Bay Park.
16.7 ft
Pumping begins in East Peoria near the train yard and Wesley Slough.
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 |
|---|---|---|
| Apr 23, 2013 | 29.35 ft | -9,999 cfs |
| May 22, 1943 | 28.8 ft | — |
| Mar 22, 1979 | 28.7 ft | — |
About This Gauge
NWS LID
PIAI2
River
Illinois River
County
Peoria, IL
Coordinates
40.7033°N, 89.5613°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?
The Illinois River at Peoria 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?
The NWS-defined flood stage for Illinois River at Peoria is 18 feet. Action stage begins at 17 feet. Moderate flooding starts at 22 feet, and major flooding at 28 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 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 gauge located?
The gauge is located in Peoria County, Illinois at coordinates 40.7033°N, 89.5613°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
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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.