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 426–450 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pine Hollow Detention Allegheny County | 22 | 1999 | Significant | Satisfactory |
| Pine Grove Lancaster County | 65 | 1949 | High | Fair |
| Pine Grove Chester County | 10 | 1919 | Low | Not Rated |
| Pinecrest Lake (Tamaque Lake) Monroe County | 19 | 1927 | Significant | Fair |
| Pine Crest Lake Pike County | 8 | — | Low | Satisfactory |
| Pine Creek (North Park Lake) Allegheny County | 33 | 1936 | High | Fair |
| Pinchot Lake York County | 50 | 1959 | High | Fair |
| Pike Township Clearfield County | 42 | 1975 | Low | Not Rated |
| Pikes Creek Luzerne County | 65 | 1911 | High | Satisfactory |
| Pickering Creek Chester County | 36 | 1928 | High | Fair |
| Pickerel Pond Pike County | 14 | 1951 | High | Fair |
| Philipsburg No 3 (Upper) Centre County | 17 | 1921 | High | Fair |
| Philadelphia Mills Philadelphia County | 24 | 1994 | High | Fair |
| Perrins Marsh Wyoming County | 6 | 1919 | High | Fair |
| Perkins Pond Wayne County | 20 | 1870 | Significant | Fair |
| Perch Pond Wayne County | 13 | 1913 | High | Fair |
| Penn Scenic View Pond Somerset County | 22 | — | High | Satisfactory |
| Penn Nursery Centre County | 23 | 1972 | High | Poor |
| Penn Lake Luzerne County | 34 | 1905 | High | Poor |
| Penn Forest Carbon County | 151 | 1998 | High | Satisfactory |
| Pence Bedford County | 13 | 1842 | Low | Not Rated |
| Penallen Montgomery County | 12 | 1982 | Significant | Fair |
| Pegs Run Slurry Impoundment Greene County | 39 | 1983 | Low | Fair |
| Pecks Pond Pike County | 7 | 1906 | High | Poor |
| Peach Bottom Atomic Power York County | 34 | 1973 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.