Major Flood
47 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
42 ft
Minor Flood
36 ft
Action Stage
34 ft
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 21, 2020 | 48.2 ft | — |
| Mar 3, 2022 | 44.79 ft | — |
| Mar 8, 2021 | 43.33 ft | — |
About This Gauge
Get Flood Alerts for Ohio 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 Ohio River at Olmsted Lock and Dam Headwater?
The Ohio River at Olmsted Lock and Dam Headwater gauge is maintained by USGS (site 03612600) 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 Ohio River at Olmsted Lock and Dam Headwater?
The NWS-defined flood stage for Ohio River at Olmsted Lock and Dam Headwater is 36 feet. Action stage begins at 34 feet. Moderate flooding starts at 42 feet, and major flooding at 47 feet.
How do I get alerts when Ohio River rises?
Download StormCast free on Google Play, go to River Gauges, and add Ohio River at Olmsted Lock and Dam Headwater 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 Ohio River at Olmsted Lock and Dam Headwater gauge located?
The gauge is located in Pulaski County, Illinois at coordinates 37.1792°N, 89.0583°W. USGS site number: 03612600. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US 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 48 hours into the future from the forecast issuance time.