Minor Flood
7 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.
Action Stage
6 ft
What Floods at Each Level
8 ft
Water is at the bottom of the Muscatine Avenue bridge.
7.5 ft
Water affects the northwest approach to the Muscatine Avenue bridge.
6 ft
Water is at the bottom of the 1st Avenue bridge.
4.5 ft
Water is at the bottom of the F Street bridge.
4 ft
Water is at the bottom of the Sixth Street bridge.
3.5 ft
Water affects the north approach to the Sixth Street bridge.
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 13, 1962 | 10.5 ft | — |
| Oct 5, 2018 | 9.64 ft | — |
| May 3, 2012 | 9.48 ft | — |
About This Gauge
USGS Site
NWS LID
IACI4
River
South Branch Ralston Creek
County
Johnson, IA
Coordinates
41.6514°N, 91.5075°W
Get Flood Alerts for South Branch Ralston Creek
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 Branch Ralston Creek at Iowa City?
The South Branch Ralston Creek at Iowa City gauge is maintained by USGS (site 05455010) 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 Branch Ralston Creek at Iowa City?
The NWS-defined flood stage for South Branch Ralston Creek at Iowa City is 7 feet. Action stage begins at 6 feet. Moderate flooding starts at N/A feet, and major flooding at N/A feet.
How do I get alerts when South Branch Ralston Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add South Branch Ralston Creek at Iowa City 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 Branch Ralston Creek at Iowa City gauge located?
The gauge is located in Johnson County, Iowa at coordinates 41.6514°N, 91.5075°W. USGS site number: 05455010. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey