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 751–775 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Watawah Monroe County | 19 | 1922 | Low | Poor |
| Lake Warren Bucks County | 10 | 1935 | Low | Fair |
| Lake Walter Susquehanna County | 32 | 1968 | High | Fair |
| Lakevue Estates Butler County | 15 | — | Significant | Not Rated |
| Lakeview Pond Monroe County | 7 | 1975 | Significant | Poor |
| Lake Verex Susquehanna County | 16 | 1969 | Low | Satisfactory |
| Lake Underwood Wayne County | 9 | 1890 | Significant | Satisfactory |
| Lake Trexler Monroe County | 25 | 1962 | Low | Fair |
| Lake Timberline Susquehanna County | 14 | 1958 | Low | Satisfactory |
| Lake Tahoe Somerset County | 20 | 1950 | Low | Not Rated |
| Lake Swiftwater Monroe County | 31 | 1930 | High | Poor |
| Lake Susquehanna Luzerne County | 51 | 1973 | High | Poor |
| Lake Strause Lebanon County | 14 | 1921 | Significant | Poor |
| Lake Stonycreek Somerset County | 31 | 1960 | High | Satisfactory |
| Lake Steuben Allegheny County | 14 | — | High | Fair |
| Lake Sophia Susquehanna County | 30 | 1957 | High | Fair |
| Lake Somerset Chester County | 32 | 1969 | High | Fair |
| Lake Somerset Somerset County | 23 | 1956 | High | Poor |
| Lake Sinca Monroe County | 24 | 1969 | High | Fair |
| Lakeside Pond Susquehanna County | 12 | 1840 | Low | Fair |
| Lakeshore Erie County | 24 | 1932 | Significant | Poor |
| Lake Sheridan Wyoming County | 10 | 1872 | High | Satisfactory |
| Lake Shawnee Susquehanna County | 27 | 1970 | Significant | Not Available |
| Lake Scranton Lackawanna County | 60 | 1898 | High | Satisfactory |
| Lake Saxony Butler County | 26 | 1958 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.