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 601–625 of 780
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ebensburg Storage Cambria County | 16 | 1923 | High | Poor |
| Eaton Reservoir Erie County | 22 | 1939 | High | Poor |
| East Stroudsburg Monroe County | 48 | 1936 | High | Satisfactory |
| East Branch Dam Elk County | 184 | 1952 | High | Not Available |
| East Birchwood Lake Pike County | 11 | 2006 | High | Satisfactory |
| Eagle Lake Lackawanna County | 12 | 1895 | High | Satisfactory |
| Dutch Fork Washington County | 42 | 1959 | High | Satisfactory |
| Dunmore No 7 Reservoir Lackawanna County | 45 | 1872 | High | Poor |
| Dunmore No 1 Lackawanna County | 47 | 1877 | High | Fair |
| Duffys Run Luzerne County | 14 | 1966 | High | Fair |
| Duck Pond Lackawanna County | 17 | 1937 | High | Fair |
| Duck Harbor Pond Wayne County | 16 | 1907 | High | Fair |
| Doverspike No 1 Jefferson County | 41 | 1970 | High | Satisfactory |
| Donegal Westmoreland County | 32 | 1967 | High | Satisfactory |
| Dinsmore No 2 Washington County | 27 | 1909 | High | Satisfactory |
| Deskus (Pa-452) Wayne County | 25 | 1963 | High | Fair |
| Derry Rod and Gun Club Westmoreland County | 27 | 1952 | High | Fair |
| Dehart Dauphin County | 105 | 1940 | High | Poor |
| Deer Lake Wayne County | 13 | 1968 | High | Fair |
| Deer Lake Fayette County | 15 | 1906 | High | Fair |
| Deer Lake Schuylkill County | 12 | 1925 | High | Poor |
| Deerfield Lake Wayne County | 12 | 1971 | High | Fair |
| Deep Creek Montgomery County | 19 | 1939 | High | Fair |
| David Mine Sedimentation Pond No 2 Armstrong County | 35 | 1989 | High | Fair |
| Dark Hollow Mifflin County | 44 | 1934 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.