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 126–150 of 195
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Montgomery Clearfield County | 71 | 1960 | High | Poor |
| Moon Lake Schuylkill County | 12 | — | High | Poor |
| Moose Creek Reservoir Clearfield County | 31 | 1910 | High | Poor |
| Moosic Lakes Lackawanna County | 12 | — | Significant | Poor |
| Morris Run No 3 Tioga County | 25 | 1920 | High | Poor |
| Mountain Springs Lake Monroe County | 18 | 1919 | High | Poor |
| Mount Airy Monroe County | 42 | 1974 | High | Poor |
| Needle Lackawanna County | 11 | 1974 | Low | Poor |
| Negro Pond Wyoming County | 7 | 1919 | High | Poor |
| No 1 Monroe County | 8 | — | Low | Poor |
| No 5 Lackawanna County | 35 | 1888 | High | Poor |
| North Fork Somerset County | 105 | 1932 | High | Poor |
| North Lake Pike County | 18 | 1972 | High | Poor |
| Pa-445 Wayne County | 31 | 1961 | High | Poor |
| Palmer Berks County | 20 | 1969 | Low | Poor |
| Paradise Lake No. 2 Fayette County | 12 | 1973 | Significant | Poor |
| Paradise Lake No 3 Fayette County | 25 | 1914 | Significant | Poor |
| Pecks Pond Pike County | 7 | 1906 | High | Poor |
| Penn Lake Luzerne County | 34 | 1905 | High | Poor |
| Penn Nursery Centre County | 23 | 1972 | High | Poor |
| Pine Run No 1 Luzerne County | 43 | 1884 | High | Poor |
| Pioneer Lake Indiana County | 21 | — | High | Poor |
| Placid Lake Carbon County | 23 | 1963 | High | Poor |
| Pocono Highlands Monroe County | 20 | 1928 | High | Poor |
| Pocono Woodland Lake No 2 Pike County | 10 | — | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.