Old Mans Creek near Iowa City, IA
River level and flood forecast · Johnson County
Normal3.8 ftas of Mon 3 PM
The river is 8.2 ft below flood stage (12 ft).
Flow: 247 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Flood stage | 12 ft |
| Action stage | 10.5 ft |
| Record crest (July 1, 2014) | 18.61 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftWater affects the approaches to the County Road W62 bridge.
- 18.6 ftWater is at the bottom of the County Road W62 bridge.
- 18.5 ftWater is at the bottom of the Orval Yoder Turnpike and SW Calkins Road bridges.
- 15.5 ftWater affects the approaches to the SW Calkins Road bridge.
- 15 ftWater is at the bottom of the Cosgrove Road SW bridge.
- 10.5 ftWater is at the bottom of the SW Black Hawk Avenue bridge.
- 10 ftWater is at the bottom of the County Road F52 bridge.
Highest crests on record
- 18.61 ft — July 1, 2014
- 17.83 ft — April 18, 2013
- 17.61 ft — July 6, 1993
- 17.2 ft — June 17, 1990
- 16.92 ft — May 10, 1996
Recent crests: 13.7 ft (March 20, 2020) · 15.38 ft (May 19, 2019) · 14.09 ft (May 17, 2019) · 16.03 ft (March 14, 2019) · 16.36 ft (October 8, 2018)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (IOCI4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.