14Total Dams
4High Hazard
1Significant
Dam Safety in Armstrong County, Pennsylvania
Armstrong County has 14 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification.
The average dam in Armstrong County is 74 years old. The most common purpose is other. The tallest dam is Mahoning Creek Dam at 162 ft.
Explore more: Oldest dams in Pennsylvania · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Mahoning Creek Dam | High | Not assessed | 162 | Flood Risk Reduction | 1941 |
| Crooked Creek Dam | High | Not assessed | 143 | Flood Risk Reduction | 1940 |
| Keystone Station | High | Satisfactory | 100 | Grade Stabilization | 1965 |
| David Mine Sedimentation Pond No 2 | High | Fair | 35 | Other | 1989 |
| David Mine Equalization Pond No 3 | Significant | Not assessed | 21 | Other | |
| Allegheny River Lock and Dam 8 | Low | Not assessed | 60 | Navigation | 1931 |
| Allegheny River Lock and Dam 9 | Low | Not assessed | 55 | Navigation | 1938 |
| Cooling Pond a | Low | Not assessed | 49 | Other | 1995 |
| Allegheny River Lock and Dam 7 | Low | Not assessed | 32 | Navigation | 1931 |
| Ambrose Mine | Low | Not assessed | 26 | Other | |
| Allegheny River Lock and Dam 6 | Low | Not assessed | 21 | Navigation | 1928 |
| Cherry Run No 1 | Low | Not assessed | 18 | Other | 1964 |
| Cherry Run No 2 | Low | Not assessed | 18 | Other | 1964 |
| Allegheny River Lock and Dam 5 | Low | Not assessed | 16 | 1927 |