Rivers in Pennsylvania
Ohio River at Dashields Lock and Dam
Below flood stage
15.48ftStage
Observed Tue, Sep 29, 2:15 PM EDT
- Flood stage
- 25.00 ft
- Forecast crest
- 15.40 ftTue, Sep 29, 8:00 PM EDT
- Record crest
- 42.80 ft1936
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 32.00 ft |
| Moderate flood | 29.00 ft |
| Minor flood | 25.00 ft |
| Action | 19.40 ft |
- 48.00 ftThe railroad tracks flood in the vicinity of Chadwick Street in Sewickley.
- 45.00 ftWater flowing through the railroad underpass reaches the intersection of Chestnut and Chadwick Streets in Sewickley.
- 37.00 ftState Route 51 at Stoops Ferry Road at Narrows Run floods, and the parking lot behind the Sewickley Station on Chestnut Street in Sewickley floods. Water reaches the parking lot of the Paradise Island Bowl on Neville Island.
- 34.00 ftFlooding reaches front yards of homes along Chestnut Avenue between White and Ferry Streets in Sewickley.
- 33.00 ftWater reaches the parking lot of the United States Coast Guard Station.
- 32.00 ftFront River Road on Neville Island begins to flood.
- 31.00 ftFlooding begins in the vicinity of I-79 intersection and Grand Avenue on Neville Island from water backing up into drains.
- 30.00 ftWater is in basements of low-lying houses along front River Road on Neville Island.
- 28.00 ftBackyards of low lying houses along Front River Road on Nevelle Island are flooded. Chestnut Avenue is flooded near intersection with Ferry Street
- 27.00 ftThe access roads to Dashileds Locks and Dam and the United States Coast Guard Station begin to flood. The beach area at Paradise Island Bowl on Neville Island begins to flood.
- 26.40 ftLock walls are overtopped.
- 23.00 ftNavigation suspended at Dashields Locks and Dam, lock out of service.
Flood outlook
Chance of flooding, October to December
| Category | Chance |
|---|---|
| Minor flooding | 9% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 29, 2026.
Crest history
22 crests on NOAA’s list since 1936.
| # | Date | Stage |
|---|---|---|
| 1 | March 18, 1936 | 42.80 ft |
| 2 | December 31, 1942 | 35.90 ft |
| 3 | January 20, 1996 | 33.20 ft |
| 4 | June 24, 1972 | 33.00 ft |
| 5 | March 7, 1975 | 32.10 ft |
| 6 | October 16, 1954 | 31.40 ft |
| 7 | March 11, 1964 | 30.00 ft |
| 8 | September 19, 2004 | 29.90 ft |
| 9 | January 22, 1959 | 28.80 ft |
| 10 | December 4, 1959 | 27.50 ft |
| 11 | January 7, 2005 | 27.18 ft |
| 12 | February 14, 1966 | 26.90 ft |
| 13 | April 4, 2024 | 26.82 ft |
| 14 | April 1, 1960 | 26.80 ft |
| 15 | December 31, 1990 | 26.40 ft |
| 16 | February 17, 2018 | 26.03 ft |
| 17 | September 11, 2018 | 25.98 ft |
| 18 | November 6, 1984 | 24.40 ft |
| 19 | December 19, 1990 | 24.20 ft |
| 20 | March 16, 2007 | 22.76 ft |
| 21 | March 24, 2007 | 20.17 ft |
| 22 | February 24, 2003 | 19.38 ft |
Most recent crests
- April 4, 2024: 26.82 ft
- September 11, 2018: 25.98 ft
- February 17, 2018: 26.03 ft
- March 24, 2007: 20.17 ft
- March 16, 2007: 22.76 ft
- January 7, 2005: 27.18 ft
- September 19, 2004: 29.90 ft
- February 24, 2003: 19.38 ft
- January 20, 1996: 33.20 ft
- December 31, 1990: 26.40 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. The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt. Stage may be affected by ice.
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.