Major Flood
25 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
22 ft
Minor Flood
21 ft
Action Stage
19 ft
What Floods at Each Level
25 ft
Widespread flooding is occurring in areas upstream and downstream of Logan, likely impacting portions of Woodbine and Missouri Valley. Logan itself is largely unaffected except for areas right along the river from 6th Avenue down through 11th Street. Also at this level the railroad bridge east of town begins to be impacted.
22 ft
Highway 30 will flood in a few low spots between Missouri Valley and Logan.
21 ft
The ballfields north of town are flooded.
20.5 ft
Buildings along the west bank of the river, south of 8th street but west of the railroad tracks, begin to flood.
19 ft
There is considerable overbank flooding upstream of Logan with downstream overbank flooding also occurring but less substantial. Floodwater may begin to encroach on the ballfields north of town may begin to be impacted.
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 |
|---|---|---|
| Mar 12, 2019 | 25.33 ft | 35,400 cfs |
| Feb 28, 1965 | 25.22 ft | — |
| Jun 7, 2008 | 24.75 ft | 33,600 cfs |
About This Gauge
Get Flood Alerts for Boyer 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 Boyer River at Logan?
The Boyer River at Logan gauge is maintained by USGS (site 06609500) 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 Boyer River at Logan?
The NWS-defined flood stage for Boyer River at Logan is 21 feet. Action stage begins at 19 feet. Moderate flooding starts at 22 feet, and major flooding at 25 feet.
How do I get alerts when Boyer River rises?
Download StormCast free on Google Play, go to River Gauges, and add Boyer River at Logan 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 Boyer River at Logan gauge located?
The gauge is located in Harrison County, Iowa at coordinates 41.6418°N, 95.7827°W. USGS site number: 06609500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of the USGS
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
- Stage may be affected by ice.