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 176–200 of 415
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Adventure Pike County | 16 | 1978 | High | Satisfactory |
| Lake Antietam Berks County | 60 | 1880 | High | Satisfactory |
| Lake Blytheburn Luzerne County | 9 | 1912 | High | Satisfactory |
| Lake Bonin Bradford County | 25 | 1972 | High | Satisfactory |
| Lake Conewago Lebanon County | 18 | 1919 | Significant | Satisfactory |
| Lake Di Cio Washington County | 15 | 1953 | Significant | Satisfactory |
| Lake Ellyn Wayne County | 12 | 1914 | High | Satisfactory |
| Lake Elsie Wayne County | 9 | 1929 | Significant | Satisfactory |
| Lake Greeley Pike County | 10 | 1916 | High | Satisfactory |
| Lake Hauto Carbon County | 33 | 1914 | High | Satisfactory |
| Lake In The Clouds Pike County | 14 | 1952 | High | Satisfactory |
| Lake Jamie Monroe County | 12 | 1956 | High | Satisfactory |
| Lake Jo-Ann Washington County | 16 | 1950 | High | Satisfactory |
| Lake Julia Fayette County | 34 | 1965 | High | Satisfactory |
| Lake Ladore Wayne County | 28 | 1860 | High | Satisfactory |
| Lake Latonka Mercer County | 34 | 1966 | High | Satisfactory |
| Lake Marburg York County | 107 | 1967 | High | Satisfactory |
| Lakemont Farms No 1 Allegheny County | 30 | — | Significant | Satisfactory |
| Lakemont Farms No 2 Allegheny County | 20 | — | Significant | Satisfactory |
| Lakemont Park Blair County | 12 | 1898 | High | Satisfactory |
| Lake Mount Union Huntingdon County | 51 | 1927 | High | Satisfactory |
| Lake Natalie Lackawanna County | 10 | 1900 | High | Satisfactory |
| Lake Nessmuk (Pa-601) Tioga County | 52 | 1968 | High | Satisfactory |
| Lake Oneida Butler County | 38 | 1918 | High | Satisfactory |
| Lake Paupackan Wayne County | 11 | 1914 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.