Major Flood
32 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
30 ft
Minor Flood
29 ft
Action Stage
26 ft
What Floods at Each Level
33 ft
Water affects 168th Ave near the bridge over the river.
31.8 ft
Water affects Iowa 92 east of Ackworth.
31 ft
Water reaches the underside of the bridge at 168th Ave.
30 ft
Water affects portions of Iowa 92 and many other rural county roads. Widespread agricultural flooding occurs.
28.6 ft
Water is over Iowa 92 between mile markers 137.5 and 139.
26 ft
Road closures are possible near creeks adjoining the river.
19 ft
Water affects lowlands.
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 |
|---|---|---|
| Jul 4, 1981 | 32.85 ft | 32,700 cfs |
| Jul 15, 1982 | 32 ft | 26,000 cfs |
| Jun 24, 2015 | 31.87 ft | 34,800 cfs |
About This Gauge
Get Flood Alerts for South 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 South River near Ackworth?
The South River near Ackworth gauge is maintained by USGS (site 05487470) 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 South River near Ackworth?
The NWS-defined flood stage for South River near Ackworth is 29 feet. Action stage begins at 26 feet. Moderate flooding starts at 30 feet, and major flooding at 32 feet.
How do I get alerts when South River rises?
Download StormCast free on Google Play, go to River Gauges, and add South River near Ackworth 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 South River near Ackworth gauge located?
The gauge is located in Warren County, Iowa at coordinates 41.3379°N, 93.4864°W. USGS site number: 05487470. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
Downstream: Des Moines River near Swan
More Resources
Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey