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 326–350 of 547
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kings Crossing Northampton County | 10 | 1990 | Significant | Fair |
| Keuster & Duanio (Pa-416) Wayne County | 14 | 1960 | High | Fair |
| Kettle Blair County | 54 | 1888 | High | Fair |
| Kellow Lake Wayne County | 16 | 1900 | High | Fair |
| Keilar Luzerne County | 19 | 1911 | Low | Fair |
| Kehm Run York County | 27 | 1954 | Significant | Fair |
| Kaercher Creek (Pa 478) Berks County | 56 | 1971 | High | Fair |
| Juniata Lake Clearfield County | 10 | 1934 | Significant | Fair |
| John C Youngman Lycoming County | 101 | 1951 | High | Fair |
| Jewell Pond Greene County | 15 | — | Significant | Fair |
| Jeannette (Mountain Valley Lake) Westmoreland County | 36 | 1889 | Significant | Fair |
| J C Bacon Beaver County | 96 | 1956 | High | Fair |
| Isabella Fresh Water Fayette County | 122 | — | Significant | Fair |
| Ironworks Bucks County | 53 | 1943 | High | Fair |
| Indspec No 3 Butler County | 59 | 1975 | High | Fair |
| Indian Lake Luzerne County | 9 | 1928 | High | Fair |
| Indian Lake Susquehanna County | 39 | 1916 | High | Fair |
| Illicks Mill Northampton County | 15 | 1850 | Low | Fair |
| Hunters Lake Sullivan County | 27 | 1970 | High | Fair |
| Humboldt Reservoir Luzerne County | 41 | 1911 | Significant | Fair |
| Hulmeville Park Bucks County | 12 | 1800 | Low | Fair |
| Howell Pond Wayne County | 12 | — | Low | Fair |
| Hosensock (Pa-424) Schuylkill County | 35 | 1960 | High | Fair |
| Hosensack No 4 Lehigh County | 32 | 1885 | Significant | Fair |
| Horton Lake Susquehanna County | 10 | 1956 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.