Dams in Armstrong County, Pennsylvania
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 Available | 162 | Flood Risk Reduction | 1941 |
| Crooked Creek Dam | High | Not Available | 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 Rated | 21 | Other | |
| Allegheny River Lock And Dam 8 | Low | Not Available | 60 | Navigation | 1931 |
| Allegheny River Lock And Dam 9 | Low | Not Available | 55 | Navigation | 1938 |
| Cooling Pond A | Low | Not Rated | 49 | Other | 1995 |
| Allegheny River Lock And Dam 7 | Low | Not Available | 32 | Navigation | 1931 |
| Ambrose Mine | Low | Not Rated | 26 | Other | |
| Allegheny River Lock And Dam 6 | Low | Not Available | 21 | Navigation | 1928 |
| Cherry Run No 1 | Low | Not Rated | 18 | Other | 1964 |
| Cherry Run No 2 | Low | Not Rated | 18 | Other | 1964 |
| Allegheny River Lock And Dam 5 | Low | Not Available | 16 | 1927 |