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 |
|---|---|---|---|---|
| Upper Silver Lake Bucks County | 15 | 1919 | Low | Fair |
| Vanderpool Bradford County | 14 | 1979 | Low | Not Rated |
| Van Sciver Lake Bucks County | 18 | 1954 | Low | Poor |
| Wanzo Bradford County | 11 | — | Low | Not Rated |
| Warner Susquehanna County | 13 | 1930 | Low | Fair |
| Warrior Ridge Huntingdon County | 27 | 1906 | Low | Satisfactory |
| Water Supply Luzerne County | 8 | 1936 | Low | Fair |
| Way Lake Susquehanna County | 12 | 1992 | Low | Satisfactory |
| Waynesburg Lakes Greene County | 26 | — | Low | Fair |
| Waynewood Wayne County | 9 | — | Low | Fair |
| Werrys Lake Monroe County | 12 | 1929 | Low | Fair |
| Westinghouse Electric Westmoreland County | 24 | — | Low | Not Rated |
| Westmoreland-Fayette Council Bsa Somerset County | 20 | 1987 | Low | Not Rated |
| West Newton Sludge Westmoreland County | 99 | — | Low | Unsatisfactory |
| Whipple Huntingdon County | 16 | 1920 | Low | Not Rated |
| W H Walker Franklin County | 21 | 1930 | Low | Not Rated |
| Wicks Pike County | 11 | 1931 | Low | Fair |
| Wildcat, Sgl #56 Bucks County | 7 | 1973 | Low | Fair |
| Wildwood Lake Dauphin County | 14 | 1908 | Low | Not Rated |
| William Penn Pike County | 10 | 1916 | Low | Fair |
| Williams Pond Wayne County | 10 | 1930 | Low | Fair |
| Williams Pond Susquehanna County | 10 | 1919 | Low | Fair |
| Witmer Monroe County | 9 | 1941 | Low | Not Rated |
| Wolf Swamp Run Monroe County | 14 | — | Low | Poor |
| Woodpecker Lake Pike County | 8 | — | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.