Pennsylvania Dams
1,481 dams tracked by the National Inventory of Dams
Total Dams
1,481
High Hazard
780
52.7%
Poor / Unsatisfactory
215
Average Age
80 yrs
Hazard Classification
High780 (52.7%)
Significant310 (20.9%)
Low378 (25.5%)
Condition Assessment
Satisfactory415 (28.0%)
Fair547 (36.9%)
Poor / Unsatisfactory215 (14.5%)
Not Rated304 (20.5%)
Federal
57
State
152
Local
351
Private
911
Tallest Dams
- Harmar Refuse Bank410 ft
- Little Blue Run400 ft
- Cumberland No. 1 Slurry Pond 1380 ft
- Cumberland No. 2 Slurry Pond370 ft
- Bailey Mine Area No. 3 Slurry337 ft
High Hazard Dams
Poor Condition Dams
- Little Pine CreekPoor
- North ForkPoor
- DehartPoor
- Mill RunPoor
- West Newton SludgeUnsatisfactory
All Dams in Pennsylvania
Showing 301–310 of 310
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Beaver Lake Wayne County | 15 | 1975 | Significant | Fair |
| Beaver Lake Wayne County | 32 | 1962 | Significant | Fair |
| Banning Refuse Slurry Pond Fayette County | 65 | — | Significant | Fair |
| Ballibay Bradford County | 10 | — | Significant | Unsatisfactory |
| Bakerton Cambria County | 24 | 1921 | Significant | Not Rated |
| Anthonys Mill Berks County | 15 | 1927 | Significant | Fair |
| Analomink Lake Monroe County | 11 | 1910 | Significant | Satisfactory |
| Altemus Indiana County | 30 | 1987 | Significant | Not Rated |
| Allegheny River Lock and Dam 4 Allegheny County | 29 | 1927 | Significant | Not Available |
| Allegheny River Lock and Dam 2 Allegheny County | 58 | 1934 | Significant | Not Available |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.