Allegheny River at C.W. Bill Young Lock and Dam
Critical Stages
15' - Action
17' - Flood
20' - Moderate
23' - Major
Latest Observation
Updated: 11:45 AM EST 12/17/25
Status: No Flooding
Stage: 10.33 ft
Flow: 7.72 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7 PM 12/17 | 10.4 | 8.3 |
| 1 AM 12/18 | 10.5 | 9.2 |
| 7 AM 12/18 | 10.6 | 9.99 |
| 1 PM 12/18 | 10.6 | 9.99 |
| 7 PM 12/18 | 10.5 | 9.2 |
| 1 AM 12/19 | 10.5 | 9.2 |
| 7 AM 12/19 | 10.6 | 9.99 |
| 1 PM 12/19 | 10.7 | 11 |
| 7 PM 12/19 | 10.8 | 12.2 |
| 1 AM 12/20 | 11 | 14.1 |
| 7 AM 12/20 | 11.2 | 16.2 |
| 1 PM 12/20 | 11.5 | 19.4 |
| 7 PM 12/20 | 11.7 | 21.5 |
| 1 AM 12/21 | 11.9 | 23.7 |
| 7 AM 12/21 | 12 | 24.9 |
| 1 PM 12/21 | 12 | 24.9 |
| 7 PM 12/21 | 12 | 24.9 |
| 1 AM 12/22 | 11.9 | 23.7 |
| 7 AM 12/22 | 11.8 | 22.6 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 11:45 AM 12/17 | 10.33 | 7.72 |
| 11:30 AM 12/17 | 10.32 | 7.64 |
| 11:15 AM 12/17 | 10.34 | 7.8 |
| 11:00 AM 12/17 | 10.32 | 7.64 |
| 10:45 AM 12/17 | 10.34 | 7.8 |
| 10:30 AM 12/17 | 10.33 | 7.72 |
| 10:15 AM 12/17 | 10.32 | 7.64 |
| 10:00 AM 12/17 | 10.27 | 7.24 |
| 9:45 AM 12/17 | 10.32 | 7.64 |
| 9:30 AM 12/17 | 10.31 | 7.56 |
| 9:15 AM 12/17 | 10.31 | 7.56 |
| 9:00 AM 12/17 | 10.34 | 7.8 |
| 8:45 AM 12/17 | 10.32 | 7.64 |
| 8:30 AM 12/17 | 10.32 | 7.64 |
| 8:15 AM 12/17 | 10.32 | 7.64 |
| 8:00 AM 12/17 | 10.32 | 7.64 |
| 7:45 AM 12/17 | 10.31 | 7.56 |
| 7:30 AM 12/17 | 10.31 | 7.56 |
| 7:15 AM 12/17 | 10.31 | 7.56 |
| 7:00 AM 12/17 | 10.31 | 7.56 |
| 6:45 AM 12/17 | 10.31 | 7.56 |
| 6:30 AM 12/17 | 10.31 | 7.56 |
| 6:15 AM 12/17 | 10.31 | 7.56 |
| 6:00 AM 12/17 | 10.31 | 7.56 |
| 5:45 AM 12/17 | 10.31 | 7.56 |
| 5:30 AM 12/17 | 10.31 | 7.56 |
| 5:15 AM 12/17 | 10.31 | 7.56 |
| 5:00 AM 12/17 | 10.31 | 7.56 |
| 4:45 AM 12/17 | 10.31 | 7.56 |
| 4:30 AM 12/17 | 10.3 | 7.48 |
22.7' -
State Route 366 is flooded.
20' -
Lock walls overtopped.
19' -
Lock 3 ceases operations for navigation.
18' -
Navigation suspended, lock out of service.
17.7' -
Basement flooding begins in New Kensington.
| Date | Stage (ft) |
|---|---|
| Mar 18, 1936 | 31.1 |
| Dec 30, 1942 | 23.3 |
| Mar 10, 1964 | 21.4 |
| Jan 22, 1959 | 21.1 |
| Jun 23, 1972 | 20.9 |
| Sep 18, 2004 | 19.8 |
| Jan 2, 1979 | 19.2 |
| Jan 20, 1996 | 19.1 |
| Mar 6, 1964 | 18.6 |
| Apr 9, 1987 | 18.4 |
| Mar 16, 2007 | 17.9 |
| Feb 17, 1976 | 17.8 |
| Apr 13, 2024 | 17.45 |
| Dec 31, 1990 | 17.4 |
| Mar 7, 2011 | 17.19 |
| Feb 19, 2022 | 17.07 |
| Sep 10, 2004 | 17 |
| Jan 7, 2005 | 17 |
| Jan 15, 2005 | 16.5 |
| Feb 9, 2019 | 16.2 |
Data provided by the National Weather Service.
