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 501–525 of 547
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Tyrone Reservoir #2 Blair County | 51 | 1912 | High | Fair |
| University Park Airport Pond 4a Centre County | 29 | 1998 | Significant | Fair |
| Upper Northampton County | 11 | 1917 | Low | Fair |
| Upper Boone Lake Sullivan County | 18 | 1972 | High | Fair |
| Upper Kittanning Blair County | 45 | 1887 | High | Fair |
| Upper Rickards Pike County | 9 | 1937 | High | Fair |
| Upper Silver Lake Bucks County | 15 | 1919 | Low | Fair |
| Valley View Pike County | 18 | 1956 | Significant | Fair |
| Varcoe (Pa-415) Wayne County | 20 | 1960 | High | Fair |
| Warner Susquehanna County | 13 | 1930 | Low | Fair |
| Warrington (Pa-611) Bucks County | 45 | 1976 | High | Fair |
| Washburn Lake Chester County | 18 | 1955 | Significant | Fair |
| Washington No 4 Washington County | 63 | 1903 | High | Fair |
| Washington School Washington County | 23 | 1976 | High | Fair |
| Wastewater Treatment Chester County | 45 | 1985 | Significant | Fair |
| Water Supply Luzerne County | 8 | 1936 | Low | Fair |
| Waynesburg Lakes Greene County | 26 | — | Low | Fair |
| Waynewood Wayne County | 9 | — | Low | Fair |
| Weaver Lake Westmoreland County | 25 | 1961 | High | Fair |
| Weisner Hollow Slurry Jefferson County | 192 | — | High | Fair |
| Welkinweir Chester County | 16 | 1937 | High | Fair |
| Werrys Lake Monroe County | 12 | 1929 | Low | Fair |
| West 17th Street Detention Erie County | 13 | 2001 | Significant | Fair |
| West Side Detention Northampton County | 9 | 1994 | High | Fair |
| Westtown Chester County | 14 | 1912 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.