Iowa River at Marengo, IA
Is Iowa River at Marengo, IA flooding right now?
Iowa River at Marengo, IA measured 7.48 ft on 2026-09-11 01:00:00 UTC. That observation was 7.5 ft below its 15 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
7.48 ft
Streamflow
1,150 cfs
Minor flooding here begins at 15 ft, with major flooding at 19 ft. The highest crest on record was 21.38 ft on Thu, Jun 12, 2008.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 13 ft | 5.5 ft below |
| Minor flood | 15 ft | 7.5 ft below |
| Moderate flood | 17 ft | 9.5 ft below |
| Major flood | 19 ft | 11.5 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 21.38 ft | 2008-06-12 |
| 20.36 ft | 2013-05-31 |
| 20.31 ft | 1993-07-19 |
| 20.26 ft | 1993-07-12 |
| 19.96 ft | 2014-07-02 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Big Bear Creek at Ladora, IA | 7.4 mi | Iowa County |
| Price Creek at Amana, IA | 9.9 mi | Iowa County |
| Iowa River near Belle Plaine, IA | 11.4 mi | Iowa County |
| Salt Creek near Elberon, IA | 16.5 mi | Tama County |
| Walnut Creek near Hartwick, IA | 16.6 mi | Poweshiek County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.