Major Flood
26.5 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
25 ft
Minor Flood
23 ft
Action Stage
19 ft
What Floods at Each Level
36 ft
Water goes over the Iowa State Highway 92 bridge roadway.
31.8 ft
Water reaches the lowest portion of the midspan of the Iowa State Highway 92 bridge.
31.3 ft
Water reaches the lowest portion of the west abutment of the Iowa State Highway 92 bridge.
31 ft
Water is over the west approach to the Iowa State Highway 92 bridge. Water also reaches the lowest portion of the east abutment of the Iowa State Highway 92 bridge.
27.2 ft
Water goes over Iowa State Highway 92.
26.8 ft
Water begins rising onto Iowa State Highway 92.
26.5 ft
Water goes over U.S. Highway 61 downstream of Columbus Junction.
25.1 ft
Water reaches the old railroad bridge on the south side of the Fairgrounds.
25 ft
Intersection of Highway G36 and 165th St is underwater and closed.
23 ft
Water affects residential property along the river south of the Iowa Highway 92 Bridge. Locust St is closed at the bridge over Monkey Run.
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 |
|---|---|---|
| Jun 14, 2008 | 32.3 ft | — |
| Jul 6, 1993 | 28.3 ft | — |
| Jul 2, 2014 | 27.67 ft | 103,658 cfs |
About This Gauge
Get Flood Alerts for Iowa 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 Iowa River at Columbus Jct?
The Iowa River at Columbus Jct gauge is maintained by USGS (site 05465100) 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 Iowa River at Columbus Jct?
The NWS-defined flood stage for Iowa River at Columbus Jct is 23 feet. Action stage begins at 19 feet. Moderate flooding starts at 25 feet, and major flooding at 26.5 feet.
How do I get alerts when Iowa River rises?
Download StormCast free on Google Play, go to River Gauges, and add Iowa River at Columbus Jct 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 Iowa River at Columbus Jct gauge located?
The gauge is located in Louisa County, Iowa at coordinates 41.2783°N, 91.3458°W. USGS site number: 05465100. Data is provided by the U.S. Geological Survey and the National Weather Service.
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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.