Major Flood
48 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
44 ft
Minor Flood
41 ft
Action Stage
29.5 ft
What Floods at Each Level
47.4 ft
This is the top of the levee system protecting Dayton from Great Miami River flooding. River stages exceeding this level would result in widespread catastrophic flooding within Dayton.
42 ft
This is equivalent of the FEMA 0.2% or 500 year flood. Flood protection by MCD protects to a stage of 47.4 feet. Low-lying areas in communities south of Dayton along tributaries of the Great Miami River experience flooding, especially from Moraine to near Miamisburg.
41 ft
Low lying areas outside of the floodwall experience flooding. Several feet of water now flood Island Metropark at east Helena Street as well as sections of Rip Rap Road near Huber Heights. University of Dayton operates pumps to keep Arena floor from flooding. Much of the city is protected by levees to a stage of 47.4 feet.
40 ft
A stop log wall must be installed at Riverscape to prevent the levee in the Riverscape area from being overtopped. The Miami Conservancy District flood protection system provides protection to the City of Dayton up to a river stage of 47.4 feet. There is some flooding outside of flood protected areas such as along Rip Rap Road in Huber Heights.
39.4 ft
This is the FEMA 1 percent flood elevation level. The Miami Conservancy District flood protection system provides protection to the City of Dayton up to a river stage of 47.4 feet. This system includes dams and levees on the Great Miami and tributaries. There is flooding outside of flood protected areas along Rip Rap Road in Huber Heights.
34 ft
Island Metro Park becomes inundated as well as Helena Street. Several inches of water cover sections of Rip Rap Road near Huber Heights. While there is some groundwater flooding problems near University of Dayton due to the high river level the city of Dayton is protected by a flood wall up to 47.4 feet.
33 ft
Island Metro Park and Helena Street experience some flooding as well as portions of Rip Rap Road near Huber Heights. The MCD flood protection system provides protection to the City of Dayton up to a river stage of 47.4 feet. This system includes dams and levees along the Miami River and tributaries in the Dayton area. In addition, some groundwater flooding may occur due to the high river near the University of Dayton.
30 ft
Flooding occurs near Rip Rap Road between Bridgewater and Little York Roads near Huber Heights. The MCD flood protection system provides protection to selected areas in the City of Dayton up to a river stage of 47.4 feet. This system provides flood reduction from four dams and reduced risk in leveed areas.
26.5 ft
Flooding begins along the bike trail along river in the city.
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 |
|---|---|---|
| Jan 21, 1959 | 36 ft | — |
| Feb 26, 1929 | 35.4 ft | — |
| Dec 22, 2013 | 35.21 ft | 43,800 cfs |
About This Gauge
USGS Site
NWS LID
DTNO1
River
Great Miami River
County
Montgomery, OH
Coordinates
39.7653°N, 84.1975°W
Get Flood Alerts for Great Miami 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 Great Miami River at Dayton?
The Great Miami River at Dayton gauge is maintained by USGS (site 03270500) 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 Great Miami River at Dayton?
The NWS-defined flood stage for Great Miami River at Dayton is 41 feet. Action stage begins at 29.5 feet. Moderate flooding starts at 44 feet, and major flooding at 48 feet.
How do I get alerts when Great Miami River rises?
Download StormCast free on Google Play, go to River Gauges, and add Great Miami River at Dayton 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 Great Miami River at Dayton gauge located?
The gauge is located in Montgomery County, Ohio at coordinates 39.7653°N, 84.1975°W. USGS site number: 03270500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Great Miami River
On This River
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Source & Notes
Data provided by: Miami Conservancy District, Observations courtesy of U.S. Geological Survey
- River Forecasts typically include ONLY 2 days of future rain from <u>forecast issuance time</u> (lower right of graph). Occasionally 3 days of future rain included.