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 176–195 of 195
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Tobyhanna No 2 Monroe County | 18 | 1951 | High | Poor |
| Todd Spring Reservoir Bedford County | 34 | 1898 | High | Poor |
| Totem Lake Bradford County | 12 | 1919 | High | Poor |
| Township Line Westmoreland County | 56 | 1900 | High | Poor |
| Trout Lake Monroe County | 24 | 1900 | High | Poor |
| Unger Wayne County | 9 | 1947 | Significant | Poor |
| Union City Reservoir Erie County | 36 | 1935 | High | Poor |
| University Park Airport Pond 1a Centre County | 24 | 1995 | High | Poor |
| Upper Birchwood Lake Pike County | 23 | — | High | Poor |
| Upper Mount Pleasant Luzerne County | 20 | 1882 | High | Poor |
| Upper Ridge Westmoreland County | 25 | 1915 | High | Poor |
| Upper Tumbling Run Schuylkill County | 55 | 1836 | High | Poor |
| Van Meter Crawford County | 33 | — | Significant | Poor |
| Van Sciver Lake Bucks County | 18 | 1954 | Low | Poor |
| Virgin Run Fayette County | 34 | 1953 | Significant | Poor |
| Wangaum Falls Wayne County | 30 | 1925 | High | Poor |
| Warren H Ohl Clinton County | 59 | 1965 | High | Poor |
| West Whiteland Business Park Chester County | 12 | — | Significant | Poor |
| Wilmore Cambria County | 48 | 1908 | High | Poor |
| Wolf Swamp Run Monroe County | 14 | — | Low | Poor |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.