Major Flood
20 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
17 ft
Minor Flood
13 ft
Action Stage
11 ft
What Floods at Each Level
20 ft
Damage begins in Monticello.
13 ft
Flooding of agricultural areas begins.
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 12, 1994 | 19.06 ft | 15,900 cfs |
| Jun 4, 2008 | 18.79 ft | 13,300 cfs |
| Dec 29, 2015 | 18.56 ft | 13,800 cfs |
About This Gauge
Get Flood Alerts for Sangamon 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 Sangamon River at Monticello?
The Sangamon River at Monticello gauge is maintained by USGS (site 05572000) 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 Sangamon River at Monticello?
The NWS-defined flood stage for Sangamon River at Monticello is 13 feet. Action stage begins at 11 feet. Moderate flooding starts at 17 feet, and major flooding at 20 feet.
How do I get alerts when Sangamon River rises?
Download StormCast free on Google Play, go to River Gauges, and add Sangamon River at Monticello 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 Sangamon River at Monticello gauge located?
The gauge is located in Piatt County, Illinois at coordinates 40.0312°N, 88.5892°W. USGS site number: 05572000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Sangamon River
On This River
Downstream: Sangamon River at Riverton
More Resources
Source & Notes
Data provided by: U.S. Geological Survey, Observations courtesy of U.S. Geological Survey
- 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.
- Gauge readings unavailable - awaiting repair.