Major Flood
18 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
14.6 ft
Minor Flood
10 ft
Action Stage
8 ft
What Floods at Each Level
19.6 ft
This will reach the flood of record of 1913. Much of the City of Sidney would be inundated, as well as areas along the river through Shelby County. Hundreds of homes and businesses would be inundated.
18.54 ft
The river will breach city flood wall with the entire south end of the city flooded. Downstream in Miami County, major flooding occurs with numerous homes and businesses impacted.
18.02 ft
The river breaches the Jersey barriers on South Ohio Avenue in front of the Big Four Bridge. Flooding occurs along Crescent Drive, South Ohio and Brooklyn Avenue.
16 ft
Flooding continues along Riverside Drive and Custenborder Field. In addition, flooding worsens along County Road 25A, near the cemetery, north to the Big Four Bridge. Downstream of Sidney, flooding worsens in Shelby County along the river.
14.6 ft
The river breaches the west bank on County Road 25A South. County Road 25A near the cemetery will flood north to under the Big Four Bridge where the Jersey barriers are located.
14 ft
Several homes and businesses are impacted on the east side of Sidney, as well as Port Jefferson.
13 ft
Water approaches properties along Canal Street in Port Jefferson, with flooding worsening in Custenborder Field in Sidney. Flooding impacts yards and parking lots along Riverside Drive. Flooding extends through much of Berger Park. Flooding encroaches to near mobile homes along Brooklyn Avenue on the east side of the Great Miami.
12 ft
The river breaches the bank on Riverside Drive, with flooding of Custenborder Field at the east river intake. Flooding of properties occurs along the river on Riverside Drive from the B and K Root Beer stand to the city limits.
11 ft
Custenborder Field has some flooding of perimeter areas, along with flooding occurring in low spots on Miami River Road.
10 ft
The river approaches the bank on the west side of Custenborder Field. At stages above 10 feet, city officials begin flood operations.
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 24, 1913 | 19.6 ft | 44,000 cfs |
| Jan 20, 1959 | 15.91 ft | — |
| Dec 22, 2013 | 15.61 ft | 14,913 cfs |
About This Gauge
USGS Site
NWS LID
SIDO1
River
Great Miami River
County
Shelby, OH
Coordinates
40.2869°N, 84.1499°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 Sidney?
The Great Miami River at Sidney gauge is maintained by USGS (site 03261500) 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 Sidney?
The NWS-defined flood stage for Great Miami River at Sidney is 10 feet. Action stage begins at 8 feet. Moderate flooding starts at 14.6 feet, and major flooding at 18 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 Sidney 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 Sidney gauge located?
The gauge is located in Shelby County, Ohio at coordinates 40.2869°N, 84.1499°W. USGS site number: 03261500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Great Miami River
On This River
Downstream: Great Miami River at Piqua
More Resources
Source & Notes
Data provided by: Miami Conservancy/USGS, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.
- 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.