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 1376–1400 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Big Bass Lake Lackawanna County | 8 | 1957 | High | Satisfactory |
| Bigan Somerset County | 24 | 1957 | High | Fair |
| Biddle Hollow Reservoir Blair County | 33 | 1911 | Low | Not Rated |
| Bev Somerset County | 10 | 1991 | Significant | Not Rated |
| Bernhart Berks County | 30 | 1865 | High | Unsatisfactory |
| Berlin Road Detention Basin Westmoreland County | 11 | 2003 | High | Satisfactory |
| Benchley Pond Bradford County | 8 | — | Low | Not Rated |
| Beltzville Dam Carbon County | 177 | 1969 | High | Not Available |
| Belmont Raw Water Basin Philadelphia County | 30 | 1901 | High | Fair |
| Belmont Lake Wayne County | 28 | 1830 | High | Poor |
| Belmont Lackawanna County | 33 | 1903 | High | Poor |
| Bellwood Blair County | 61 | 1902 | High | Poor |
| Bells Lakes Washington County | 26 | 1964 | Significant | Fair |
| Bel-Aire Lake Susquehanna County | 17 | 1950 | High | Poor |
| Beechwood Lake (Pa-454) Tioga County | 63 | 1963 | High | Fair |
| Beech Mountain Lake Luzerne County | 29 | 1966 | High | Poor |
| Bedford Co. Sportsmen's Club Lake Bedford County | 29 | 1955 | Significant | Not Rated |
| Beaver Swamp Lycoming County | 13 | 1975 | Low | Not Available |
| Beaver Run Pike County | 12 | 1956 | Low | Fair |
| Beaver Run Westmoreland County | 92 | 1952 | High | Satisfactory |
| Beaver Pond Wayne County | 15 | 1909 | High | Satisfactory |
| Beaver Pond Pike County | 14 | 1913 | High | Fair |
| Beaver Meadows Forest County | 22 | 1936 | Low | Not Rated |
| Beaver Lake Lodge Pike County | 10 | 1933 | High | Satisfactory |
| Beaver Lake Wayne County | 15 | 1975 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.