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 226–250 of 310
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gold Key Lake Pike County | 8 | — | Significant | Fair |
| Glencannon Pond Washington County | 24 | — | Significant | Fair |
| Glass Pond No 2 Wayne County | 17 | 1914 | Significant | Fair |
| Glade Spring Bedford County | 39 | 1973 | Significant | Not Rated |
| Gillespies Pond Susquehanna County | 10 | — | Significant | Fair |
| Galvin Pond Bradford County | 14 | 1966 | Significant | Fair |
| G Luzerne County | 25 | 1916 | Significant | Fair |
| Fullers Lake Susquehanna County | 9 | 1870 | Significant | Satisfactory |
| Four Seasons Lake Susquehanna County | 12 | — | Significant | Poor |
| Forest Lakes No. 2 York County | 15 | — | Significant | Satisfactory |
| Forest Lakes No. 1 York County | 14 | — | Significant | Satisfactory |
| Forest Lake Susquehanna County | 12 | 1842 | Significant | Satisfactory |
| Falling Springs Luzerne County | 61 | 1905 | Significant | Satisfactory |
| Fairmount Philadelphia County | 32 | 1927 | Significant | Satisfactory |
| Exton Lake Westmoreland County | 14 | — | Significant | Fair |
| Estates of Audubon Montgomery County | 20 | 1992 | Significant | Poor |
| Emsworth Locks and Dams Allegheny County | 25 | 1938 | Significant | Not Available |
| Emerald Lake Washington County | 38 | 1912 | Significant | Satisfactory |
| Elk Lick Scout Reservation McKean County | 13 | — | Significant | Satisfactory |
| Echo Lake Northampton County | 10 | 1911 | Significant | Poor |
| Ebenezer Lebanon County | 25 | 1820 | Significant | Satisfactory |
| Dutch Run Cambria County | 8 | — | Significant | Poor |
| Duncan Ave West Flood Control Allegheny County | 34 | — | Significant | Satisfactory |
| Duffield Pond Susquehanna County | 27 | 1973 | Significant | Not Available |
| Duck Pond Washington County | 59 | 1983 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.