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 1051–1075 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pine Creek (North Park Lake) Allegheny County | 33 | 1936 | High | Fair |
| Pine Crest Lake Pike County | 8 | — | Low | Satisfactory |
| Pinecrest Lake (Tamaque Lake) Monroe County | 19 | 1927 | Significant | Fair |
| Pine Grove Chester County | 10 | 1919 | Low | Not Rated |
| Pine Grove Lancaster County | 65 | 1949 | High | Fair |
| Pine Hollow Detention Allegheny County | 22 | 1999 | Significant | Satisfactory |
| Pine Run Schuylkill County | 75 | 1933 | High | Satisfactory |
| Pine Run Flood Retarding Montgomery County | 21 | 2014 | High | Satisfactory |
| Pine Run No 1 Luzerne County | 43 | 1884 | High | Poor |
| Pine Run (Pa-491) Mercer County | 20 | 1970 | High | Fair |
| Pine Run (Pa-616) Bucks County | 31 | 1974 | High | Fair |
| Pinetree Lake Monroe County | 25 | 1972 | High | Fair |
| Pine View Luzerne County | 18 | — | Low | Not Rated |
| Piney Clarion County | 129 | 1924 | High | Fair |
| Pioneer Lake Indiana County | 21 | — | High | Poor |
| Pittsburgh Cut Flower Allegheny County | — | — | Significant | Satisfactory |
| Placid Lake Carbon County | 23 | 1963 | High | Poor |
| Plane Nine Blair County | 51 | 1907 | High | Fair |
| Pleasant Valley Carbon County | 42 | 1967 | Low | Satisfactory |
| Pleasant Valley Estates Monroe County | 14 | 2009 | High | Satisfactory |
| Pngc Reservoir No 6 Allegheny County | 11 | — | High | Satisfactory |
| Pocahontas Monroe County | 13 | 1911 | High | Satisfactory |
| Pocono Highlands Monroe County | 20 | 1928 | High | Poor |
| Pocono Lake Monroe County | 47 | 1957 | High | Satisfactory |
| Pocono Laurel Lake Monroe County | 11 | — | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.