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 926–950 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Indian Run Berks County | 40 | 1890 | High | Unsatisfactory |
| Indian Run Schuylkill County | 94 | 1926 | High | Satisfactory |
| Indian Mountain Lake Monroe County | 13 | 1960 | High | Poor |
| Indian Lake Susquehanna County | 39 | 1916 | High | Fair |
| Indian Lake Somerset County | 71 | 1964 | High | Satisfactory |
| Indian Lake Luzerne County | 9 | 1928 | High | Fair |
| Indian Creek Fayette County | 40 | 1905 | High | Poor |
| Illicks Mill Northampton County | 15 | 1850 | Low | Fair |
| Ice Pond Westmoreland County | 7 | 1900 | Undetermined | Not Rated |
| Ice Pond Luzerne County | 13 | 1909 | Significant | Satisfactory |
| Hutchinson Fresh Water Westmoreland County | 65 | — | Low | Not Rated |
| Hutchinson Huntingdon County | 20 | 1959 | Low | Not Rated |
| Huntsville Luzerne County | 27 | 1891 | High | Poor |
| Huntington Woods Retention Pond Allegheny County | 20 | 1988 | Significant | Satisfactory |
| Huntingdon Smithfield Lily Creek Huntingdon County | 37 | 1967 | High | Satisfactory |
| Hunters Lake Sullivan County | 27 | 1970 | High | Fair |
| Hunter Lake Monroe County | 13 | 1928 | Significant | Poor |
| Humboldt Reservoir Luzerne County | 41 | 1911 | Significant | Fair |
| Hulmeville Park Bucks County | 12 | 1800 | Low | Fair |
| Hull Plan Lake Butler County | 25 | — | High | Poor |
| Hughes Hollow Slurry Impoundment Greene County | 245 | — | High | Satisfactory |
| Huggy Bear Lake Pike County | 11 | — | Significant | Poor |
| Howells Run Cambria County | 64 | 1964 | High | Satisfactory |
| Howell Pond Wayne County | 12 | — | Low | Fair |
| House Pond Wayne County | 14 | 1925 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.