Allegheny River at Freeport Lock and Dam
Critical Stages
16' - Action
23' - Flood
24' - Moderate
26' - Major
Latest Observation
Updated: 10:30 AM EST 12/6/25
Status: No Flooding
Stage: 9.63 ft
Flow: 2.79 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10:30 AM 12/6 | 9.63 | 2.79 |
| 10:15 AM 12/6 | 9.61 | 2.71 |
| 10:00 AM 12/6 | 9.62 | 2.75 |
| 9:45 AM 12/6 | 9.63 | 2.79 |
| 9:30 AM 12/6 | 9.62 | 2.75 |
| 9:15 AM 12/6 | 9.63 | 2.79 |
| 9:00 AM 12/6 | 9.58 | 2.57 |
| 8:45 AM 12/6 | 9.58 | 2.57 |
| 8:30 AM 12/6 | 9.58 | 2.57 |
| 8:15 AM 12/6 | 9.6 | 2.67 |
| 8:00 AM 12/6 | 9.61 | 2.71 |
| 7:45 AM 12/6 | 9.59 | 2.62 |
| 7:30 AM 12/6 | 9.59 | 2.62 |
| 7:15 AM 12/6 | 9.57 | 2.51 |
| 7:00 AM 12/6 | 9.62 | 2.75 |
| 6:45 AM 12/6 | 9.59 | 2.62 |
| 6:30 AM 12/6 | 9.58 | 2.57 |
| 6:15 AM 12/6 | 9.59 | 2.62 |
| 6:00 AM 12/6 | 9.6 | 2.67 |
| 5:45 AM 12/6 | 9.6 | 2.67 |
| 5:30 AM 12/6 | 9.61 | 2.71 |
| 5:15 AM 12/6 | 9.61 | 2.71 |
| 5:00 AM 12/6 | 9.61 | 2.71 |
| 4:45 AM 12/6 | 9.59 | 2.62 |
| 4:30 AM 12/6 | 9.61 | 2.71 |
| 4:15 AM 12/6 | 9.64 | 2.83 |
| 4:00 AM 12/6 | 9.64 | 2.83 |
| 3:45 AM 12/6 | 9.66 | 2.91 |
| 3:30 AM 12/6 | 9.67 | 2.96 |
| 3:15 AM 12/6 | 9.66 | 2.91 |
33.29' -
Water reaches the record flood level of the ST. Patricks Day Flood and crest on March 18, 1936.
25' -
Some buildings in the industrial park 1/4 mile upstream from the Lock begin to flood.
24.1' -
Water reaches the level reached during Hurricane Ivan September 18, 2004. Freeport received 6 inches of rain.
22.8' -
Backwater from Buffalo Creek surrounds the sewage disposal plant on Lower Market Street. Basements on First, Second and Lower High and Market Streets in town begin to flood.
20.2' -
Lock walls overtopped.
16' -
Navigation suspended. Lock out of service.
| Date | Stage (ft) |
|---|---|
| Mar 18, 1936 | 33.3 |
| Dec 30, 1942 | 25.7 |
| Mar 10, 1964 | 25.3 |
| Jan 20, 1996 | 25 |
| Jan 22, 1959 | 24.8 |
| Jun 23, 1972 | 24.5 |
| Sep 18, 2004 | 24.1 |
| Mar 16, 2007 | 23.6 |
| Mar 5, 1964 | 23.3 |
| Feb 14, 1966 | 22.7 |
| Feb 19, 2022 | 22.58 |
| Apr 13, 2024 | 22.52 |
| Dec 31, 1990 | 22.5 |
| Jun 21, 1989 | 22.2 |
| Jan 29, 2024 | 19.54 |
| Mar 23, 2007 | 18.5 |
Data provided by the National Weather Service.
