Iowa River at Steamboat Rock, IA

Hardin County, Iowa · USGS gauge 05450400 · NWS STBI4 · Iowa River flood status · Iowa river levels

Is Iowa River at Steamboat Rock, IA flooding right now?

Iowa River at Steamboat Rock, IA measured 5.45 ft on 2026-09-11 01:00:00 UTC. That observation was 5.5 ft below its 11 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

5.45 ft

as of 85 min ago

Streamflow

95 cfs

data refreshed 8 min ago

Minor flooding here begins at 11 ft. The highest crest on record was 17.86 ft on Sun, Jun 8, 2008.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	10 ft	4.5 ft below
Minor flood	11 ft	5.5 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
17.86 ft	2008-06-08
16.42 ft	1965-03-08
16.22 ft	1996-03-07
16.09 ft	2016-01-02
15.79 ft	1996-12-18

Last 7 days

Past 7 days · 5.37–5.51 ft

Nearby gauges

Gauge	Distance	County
South Fork Iowa River NE of New Providence, IA	7.6 mi	Hardin County
Iowa River at Marshalltown, IA	25.1 mi	Marshall County
Beaver Creek at New Hartford, IA	25.8 mi	Butler County
South Fork Iowa River near Blairsburg, IA	27.9 mi	Hamilton County
Timber Creek near Marshalltown, IA	29.8 mi	Marshall County

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.

Sources: USGS monitoring location · NWS gauge & forecast