Rivers in Ohio
Great Miami River at Sidney
Below flood stage
6.33ftStage
Observed Tue, Sep 22, 3:30 PM EDT
- Flood stage
- 10.00 ft
- Forecast crest
- 6.10 ftTue, Sep 22, 8:00 PM EDT
- Record crest
- 19.60 ft1913
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 18.00 ft |
| Moderate flood | 14.60 ft |
| Minor flood | 10.00 ft |
| Action | 8.00 ft |
- 19.60 ftThis 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 ftThe 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 ftThe 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.
- 16.00 ftFlooding 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.
- 14.60 ftThe 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.
- 14.00 ftSeveral homes and businesses are impacted on the east side of Sidney, as well as Port Jefferson.
- 13.00 ftWater 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.
- 12.00 ftThe 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.
- 11.00 ftCustenborder Field has some flooding of perimeter areas, along with flooding occurring in low spots on Miami River Road.
- 10.00 ftThe river approaches the bank on the west side of Custenborder Field. At stages above 10 feet, city officials begin flood operations.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 15% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.
Crest history
78 crests on NOAA’s list since 1913.
| # | Date | Stage |
|---|---|---|
| 1 | March 25, 1913 | 19.60 ft |
| 2 | January 21, 1959 | 15.91 ft |
| 3 | December 22, 2013 | 15.61 ft |
| 4 | July 13, 1992 | 14.58 ft |
| 5 | July 9, 2003 | 14.40 ft |
| 6 | March 20, 1927 | 14.40 ft |
| 7 | December 30, 1990 | 14.36 ft |
| 8 | January 6, 2005 | 14.16 ft |
| 9 | April 5, 2025 | 13.92 ft |
| 10 | August 8, 1995 | 13.64 ft |
| 11 | January 12, 2005 | 13.62 ft |
| 12 | February 26, 1929 | 13.60 ft |
| 13 | May 13, 1933 | 13.48 ft |
| 14 | February 28, 2011 | 13.18 ft |
| 15 | January 16, 1950 | 12.84 ft |
| 16 | April 21, 1920 | 12.80 ft |
| 17 | April 3, 2024 | 12.74 ft |
| 18 | March 29, 1924 | 12.62 ft |
| 19 | April 4, 2018 | 12.55 ft |
| 20 | March 5, 2011 | 12.51 ft |
| 21 | January 27, 1952 | 12.43 ft |
| 22 | January 15, 1937 | 12.38 ft |
| 23 | March 6, 1963 | 12.36 ft |
| 24 | January 14, 2005 | 12.30 ft |
| 25 | January 13, 1930 | 12.20 ft |
Most recent crests
- August 20, 2026: 11.04 ft
- April 5, 2025: 13.92 ft
- April 3, 2024: 12.74 ft
- March 4, 2023: 10.86 ft
- March 7, 2022: 10.35 ft
- March 29, 2020: 11.62 ft
- June 21, 2019: 11.03 ft
- June 18, 2019: 10.87 ft
- May 18, 2019: 11.83 ft
- February 8, 2019: 10.90 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Ohio River Forecast Center. Forecasts are issued routinely year-round. 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.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.