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 751–775 of 780
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Weaver Lake Westmoreland County | 25 | 1961 | High | Fair |
| Weisner Hollow Slurry Jefferson County | 192 | — | High | Fair |
| Welkinweir Chester County | 16 | 1937 | High | Fair |
| Westcolang Lake Pike County | 13 | 1912 | High | Satisfactory |
| West Side Detention Northampton County | 9 | 1994 | High | Fair |
| Wharton Boulevard Stormwater Chester County | 21 | 1999 | High | Fair |
| Whetstone No 2 Storage Elk County | 36 | 1962 | High | Satisfactory |
| White Heron Monroe County | 34 | 1930 | High | Satisfactory |
| White Oak Pond Wayne County | 26 | 1830 | High | Fair |
| Whitetail Land CO - A Franklin County | 51 | 1993 | High | Fair |
| Whitney Ridge Westmoreland County | 18 | 1899 | High | Fair |
| Wigwam Lake Monroe County | 16 | 1928 | High | Fair |
| Wild Acres Lake Pike County | 9 | 1928 | High | Fair |
| Wild Creek Carbon County | 135 | 1941 | High | Fair |
| Wildwood Lake Wayne County | 18 | 1956 | High | Satisfactory |
| William L. Cochran Impounding Blair County | 60 | 1898 | High | Satisfactory |
| Williams Bridge Reservoir Lackawanna County | 54 | 1893 | High | Fair |
| Williams Run Cambria County | 43 | 1956 | High | Fair |
| Wilmore Cambria County | 48 | 1908 | High | Poor |
| Wilsonville Pike County | 68 | 1926 | High | Satisfactory |
| Wisecarver Greene County | 35 | 1931 | High | Satisfactory |
| Wittmer Road Detention Allegheny County | 25 | 1990 | High | Satisfactory |
| Wolf Creek Clearfield County | 34 | 1971 | High | Fair |
| Wolf Creek Reservoir Schuylkill County | 73 | 1909 | High | Fair |
| Wolfe Farm Cumberland County | 28 | 1966 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.