Major Flood
18 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.
Moderate Flood
16.5 ft
Minor Flood
15 ft
Action Stage
14 ft
What Floods at Each Level
24 ft
Water reaches the bottom of the Grange Road bridge deck.
19.3 ft
Water reaches the bottom of the Illinois Highway 82 bridge deck in Geneseo.
18 ft
Water inundates 10th Avenue in south Colona. Water affects levees downstream of Illinois Highway 84.
15.5 ft
Water affects Illinois Highway 84 north of U.S. Highway 6 in the Colona area.
14.5 ft
Water affects some roads around south Colona.
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 |
|---|---|---|
| Jan 22, 1969 | 21.59 ft | — |
| May 30, 2011 | 19.38 ft | 10,800 cfs |
| Oct 17, 1998 | 18.77 ft | 10,300 cfs |
About This Gauge
USGS Site
NWS LID
GENI2
River
Green River (IL)
County
Henry, IL
Coordinates
41.4889°N, 90.1575°W
Get Flood Alerts for Green River (IL)
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 Green River (IL) near Geneseo?
The Green River (IL) near Geneseo gauge is maintained by USGS (site 05447500) 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 Green River (IL) near Geneseo?
The NWS-defined flood stage for Green River (IL) near Geneseo is 15 feet. Action stage begins at 14 feet. Moderate flooding starts at 16.5 feet, and major flooding at 18 feet.
How do I get alerts when Green River (IL) rises?
Download StormCast free on Google Play, go to River Gauges, and add Green River (IL) near Geneseo 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 Green River (IL) near Geneseo gauge located?
The gauge is located in Henry County, Illinois at coordinates 41.4889°N, 90.1575°W. USGS site number: 05447500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: U.S. Geological Survey, Observations courtesy of U.S. 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 48 hours into the future from the forecast issuance time.