Allegheny River at Lock & Dam 5 near Freeport, PA
Is Allegheny River at Lock & Dam 5 near Freeport, PA flooding right now?
Allegheny River at Lock & Dam 5 near Freeport, PA measured 10.57 ft on 2026-09-11 00:30:00 UTC. That observation was 12.4 ft below its 23 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
10.57 ft
Streamflow
7,050 cfs
Minor flooding here begins at 23 ft, with major flooding at 26 ft. The highest crest on record was 33.3 ft on Wed, Mar 18, 1936.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 16 ft | 5.4 ft below |
| Minor flood | 23 ft | 12.4 ft below |
| Moderate flood | 24 ft | 13.4 ft below |
| Major flood | 26 ft | 15.4 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 33.3 ft | 1936-03-18 |
| 25.7 ft | 1942-12-30 |
| 25.3 ft | 1964-03-10 |
| 25 ft | 1996-01-20 |
| 24.8 ft | 1959-01-22 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Allegheny River below Lock & Dam 5 near Freeport, PA | 0.1 mi | Armstrong County |
| Buffalo Creek near Freeport, PA | 2.8 mi | Butler County |
| Buffalo Creek at Iron Bridge, PA | 3.5 mi | Armstrong County |
| Allegheny River below Lock & Dam 6 at Clinton, PA | 5.0 mi | Armstrong County |
| Allegheny River at Lock & Dam 6 at Clinton, PA | 5.0 mi | Armstrong County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.