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 401–415 of 415
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bailey No 1 South Saddle Dike Greene County | 55 | 2004 | Low | Satisfactory |
| Bailey Mine Slurry Impoundment Greene County | 315 | 1984 | High | Satisfactory |
| Bailey Mine Fresh Water Imp Greene County | 164 | 1984 | High | Satisfactory |
| Bailey Mine Area No. 6 Sed Pond Greene County | 58 | — | High | Satisfactory |
| Bailey Mine Area No. 3 Slurry Greene County | 337 | 2014 | High | Satisfactory |
| Bailey Mine Area No. 3 Saddle D Greene County | 32 | 2014 | High | Satisfactory |
| Bailey Mine Area No. 3 Saddle C Greene County | 37 | 2014 | High | Satisfactory |
| Bailey Mine Area No. 3 Saddle B Greene County | 27 | 2014 | High | Satisfactory |
| Bailey Mine Area No. 3 Saddle A Greene County | 67 | 2014 | High | Satisfactory |
| Area 3/4 Lower Sed Pond Greene County | 35 | 2004 | Low | Satisfactory |
| Andy Washington County | 35 | — | Low | Satisfactory |
| Analomink Lake Monroe County | 11 | 1910 | Significant | Satisfactory |
| Acre Pond Susquehanna County | 12 | 1825 | High | Satisfactory |
| Acme (Pa-657) Westmoreland County | 33 | 1975 | High | Satisfactory |
| 14-North Impoundment Allegheny County | 42 | — | High | Satisfactory |
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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.