Major Flood
28 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
25 ft
Minor Flood
23 ft
Action Stage
21 ft
What Floods at Each Level
29.5 ft
Water reaches the bottom of the bridge at the gage site.
28 ft
Widespread flooding of agricultural community would occur across the entire basin in which the Monona-Harrison Ditch as well as the Little Sioux River run. Both water channels run parallel with one another across most of Monona County and the northwest corner of Harrison County before joining the Missouri River.
25 ft
Water overtops the levee system causing flooding of only surrounding agricultural fields and may overrun part of County HWY E54.
23 ft
Water overtops the natural banks indicative of minor flooding but remains within the levee.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 18, 1971 | 28.03 ft | 19,900 cfs |
| Mar 14, 2019 | 26.12 ft | 14,500 cfs |
| Jun 17, 1984 | 24.8 ft | 13,300 cfs |
About This Gauge
USGS Site
NWS LID
TRNI4
River
Monona-Harrison Ditch
County
Monona, IA
Coordinates
41.9650°N, 95.9917°W
Get Flood Alerts for Monona-Harrison Ditch
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 Monona-Harrison Ditch near Turin?
The Monona-Harrison Ditch near Turin gauge is maintained by USGS (site 06602400) 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 Monona-Harrison Ditch near Turin?
The NWS-defined flood stage for Monona-Harrison Ditch near Turin is 23 feet. Action stage begins at 21 feet. Moderate flooding starts at 25 feet, and major flooding at 28 feet.
How do I get alerts when Monona-Harrison Ditch rises?
Download StormCast free on Google Play, go to River Gauges, and add Monona-Harrison Ditch near Turin 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 Monona-Harrison Ditch near Turin gauge located?
The gauge is located in Monona County, Iowa at coordinates 41.9650°N, 95.9917°W. USGS site number: 06602400. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: Observations courtesy of the USGS
- Stage may be affected by ice.