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 376–400 of 415
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bradys Lake Monroe County | 19 | 2007 | High | Satisfactory |
| Bradford City No 3 McKean County | 47 | 1898 | High | Satisfactory |
| Bradford City No 2 McKean County | 44 | 1886 | High | Satisfactory |
| Boyertown Reservoir Berks County | 55 | 1929 | High | Satisfactory |
| Bowmans Marsh Luzerne County | 10 | — | Low | Satisfactory |
| Blue Giant Meadow Luzerne County | 12 | 1912 | Significant | Satisfactory |
| Blacksville #1 Freshwater Imp Greene County | 20 | 1974 | Significant | Satisfactory |
| Black Rock Montgomery County | 11 | 1900 | Low | Satisfactory |
| Big Spring Westmoreland County | 43 | 1907 | High | Satisfactory |
| Big Boulder Lake B Carbon County | 19 | 1957 | High | Satisfactory |
| Big Bass Lake Lackawanna County | 8 | 1957 | High | Satisfactory |
| Berlin Road Detention Basin Westmoreland County | 11 | 2003 | High | Satisfactory |
| Beaver Run Westmoreland County | 92 | 1952 | High | Satisfactory |
| Beaver Pond Wayne County | 15 | 1909 | High | Satisfactory |
| Beaver Lake Lodge Pike County | 10 | 1933 | High | Satisfactory |
| Beaver Creek (Pa-433) Chester County | 36 | 1975 | High | Satisfactory |
| Bear Gap No 6 Columbia County | 70 | 1915 | High | Satisfactory |
| Bear Creek Lake Luzerne County | 17 | 1915 | High | Satisfactory |
| Basin 2 York County | 10 | 1998 | High | Satisfactory |
| Basin 1 York County | 13 | 1998 | High | Satisfactory |
| Bailey Sediment Pond No 2 Greene County | 39 | — | High | Satisfactory |
| Bailey Sediment Pond No 1 Greene County | 32 | — | High | Satisfactory |
| Bailey No. 8 Sediment Pond Greene County | 53 | — | High | Satisfactory |
| Bailey No 5 West Saddle Greene County | 68 | — | High | Satisfactory |
| Bailey No. 5 Sedimentation Pond Greene County | 60 | — | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.