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 351–375 of 378
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Beaver Swamp Lycoming County | 13 | 1975 | Low | Not Available |
| Beaver Run Pike County | 12 | 1956 | Low | Fair |
| Beaver Meadows Forest County | 22 | 1936 | Low | Not Rated |
| Bear Pond Westmoreland County | 15 | — | Low | Not Rated |
| Bayly Pond Wayne County | 12 | 1961 | Low | Poor |
| Baylors Lake Lackawanna County | 9 | 1946 | Low | Poor |
| Baxter Raw Water Basin Philadelphia County | 21 | 1916 | Low | Poor |
| Baugher Adams County | 18 | 1979 | Low | Not Rated |
| Basin No 2 Lackawanna County | 13 | 1992 | Low | Fair |
| Barnes Wayne County | 9 | — | Low | Fair |
| Barmore Lake Mercer County | 10 | 1903 | Low | Not Rated |
| Baker Susquehanna County | 32 | 1963 | Low | Fair |
| Bailey No 1 South Saddle Dike Greene County | 55 | 2004 | Low | Satisfactory |
| Arthur Pike County | 7 | — | Low | Poor |
| Area 3/4 Lower Sed Pond Greene County | 35 | 2004 | Low | Satisfactory |
| Anthony J. Cimini Lycoming County | 15 | 1984 | Low | Fair |
| Andy Washington County | 35 | — | Low | Satisfactory |
| Amerikohl Management Butler County | 29 | 1983 | Low | Not Rated |
| Ambrose Mine Armstrong County | 26 | — | Low | Not Rated |
| Alpine Lake Monroe County | 11 | 1962 | Low | Not Rated |
| Allegheny River Lock and Dam 9 Armstrong County | 55 | 1938 | Low | Not Available |
| Allegheny River Lock and Dam 8 Armstrong County | 60 | 1931 | Low | Not Available |
| Allegheny River Lock and Dam 7 Armstrong County | 32 | 1931 | Low | Not Available |
| Allegheny River Lock and Dam 6 Armstrong County | 21 | 1928 | Low | Not Available |
| Allegheny River Lock and Dam 5 Armstrong County | 16 | 1927 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.