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 151–175 of 195
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pond No 2 Chester County | 36 | — | Low | Poor |
| Pond View Farm Chester County | 10 | 1960 | Significant | Poor |
| Reflection Lake Wayne County | 19 | 1974 | Low | Poor |
| Reflection Lake (Romosa Lake) Susquehanna County | 11 | 1952 | Low | Poor |
| Reynoldsville Storage #5 Jefferson County | 26 | 1901 | High | Poor |
| Rickard Wayne County | 8 | — | Low | Poor |
| Ridge Lake Wayne County | 10 | — | Significant | Poor |
| Ringtown No 5 Schuylkill County | 62 | 1914 | High | Poor |
| Rock Hollow Road Berks County | 26 | 1969 | Low | Poor |
| Rockview Reservoir Centre County | 53 | — | High | Poor |
| Rocky Glen Lackawanna County | 19 | 1903 | High | Poor |
| Rossiter Indiana County | 15 | 1919 | High | Poor |
| Salt Run Reservoir Cameron County | 44 | 1911 | High | Poor |
| Sandy Run Cambria County | 33 | 1964 | High | Poor |
| Saw Creek Club Pike County | 20 | 1919 | High | Poor |
| Shaw Dam Adams County | — | — | Significant | Poor |
| Sheppard Myers York County | 38 | 1933 | High | Poor |
| Shickshinny Lake Luzerne County | 33 | 1965 | High | Poor |
| Sonneborn (Witco) Reservoir Butler County | 23 | 1951 | High | Poor |
| Spencer Mill Susquehanna County | 16 | 1919 | Significant | Poor |
| Spring Lake Susquehanna County | 10 | 1919 | High | Poor |
| Spring Lake Monroe County | 22 | 1983 | High | Poor |
| Sterling Drug Montgomery County | 19 | — | Low | Poor |
| Sweetwater Lake Monroe County | 8 | 1983 | High | Poor |
| Thomas Monroe County | 10 | 1982 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.