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 1401–1425 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Beaver Lake Wayne County | 30 | 1970 | High | Poor |
| Beaver Lake Lycoming County | 9 | 1919 | High | Poor |
| Beaver Lake Wayne County | 32 | 1962 | Significant | Fair |
| Beaverdam Run Cambria County | 55 | 1975 | High | Fair |
| Beaver Creek (Pa-433) Chester County | 36 | 1975 | High | Satisfactory |
| Bear Pond Westmoreland County | 15 | — | Low | Not Rated |
| Bear Gap No 6 Columbia County | 70 | 1915 | High | Satisfactory |
| Bear Gap No 2 Columbia County | 83 | 1923 | High | Fair |
| Bear Creek Lake Carbon County | 35 | 1964 | High | Fair |
| Bear Creek Lake Luzerne County | 17 | 1915 | High | Satisfactory |
| 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 |
| Bathgate Detention Pond Centre County | 21 | 1991 | High | Fair |
| Basin No 2 Lackawanna County | 13 | 1992 | Low | Fair |
| Basin 2 York County | 10 | 1998 | High | Satisfactory |
| Basin 1 York County | 13 | 1998 | High | Satisfactory |
| Barnett Lancaster County | 26 | — | High | Fair |
| Barneston (Pa 432) Chester County | 43 | 1983 | High | Fair |
| Barnes Wayne County | 9 | — | Low | Fair |
| Barmore Lake Mercer County | 10 | 1903 | Low | Not Rated |
| Banning Refuse Slurry Pond Fayette County | 65 | — | Significant | Fair |
| Ballibay Bradford County | 10 | — | Significant | Unsatisfactory |
| Bakerton Cambria County | 24 | 1921 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.