Iowa River at Columbus Jct, IA
River level and flood forecast · Louisa County
Normal15.8 ftas of Mon 3 PM
The river is 7.2 ft below flood stage (23 ft).
Flow: 21,800 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Thu, Oct 8, 7:51 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 26.5 ft |
| Moderate flood stage | 25 ft |
| Flood stage | 23 ft |
| Action stage | 19 ft |
| Record crest (June 15, 2008) | 32.3 ft |
What floods at each level
From the National Weather Service, highest first.
- 36 ftWater goes over the Iowa State Highway 92 bridge roadway.
- 31.8 ftWater reaches the lowest portion of the midspan of the Iowa State Highway 92 bridge.
- 31.3 ftWater reaches the lowest portion of the west abutment of the Iowa State Highway 92 bridge.
- 31 ftWater 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 ftWater goes over Iowa State Highway 92.
- 26.8 ftWater begins rising onto Iowa State Highway 92.
- 26.5 ftWater goes over U.S. Highway 61 downstream of Columbus Junction.
- 25.1 ftWater reaches the old railroad bridge on the south side of the Fairgrounds.
- 25 ftIntersection of Highway G36 and 165th St is underwater and closed.
- 23 ftWater affects residential property along the river south of the Iowa Highway 92 Bridge. Locust St is closed at the bridge over Monkey Run.
Highest crests on record
- 32.3 ft — June 15, 2008
- 28.3 ft — July 7, 1993
- 27.67 ft — July 3, 2014
- 25.82 ft — April 19, 2013
- 25.29 ft — September 30, 2016
Recent crests: 24.95 ft (May 31, 2019) · 24.21 ft (March 21, 2019) · 24.32 ft (October 9, 2018) · 23.91 ft (September 8, 2018) · 24.8 ft (October 1, 2016)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CJTI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.