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 276–300 of 378
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Raw Water Pond Washington County | 25 | 1968 | Low | Fair |
| Ray T Mantz Luzerne County | 13 | 1962 | Low | Fair |
| Reading Anthracite - Elangowen Schuylkill County | 20 | — | Low | Not Available |
| Realty Engineering Developers Bucks County | 7 | — | Low | Fair |
| Redbank Valley Water Supply Clarion County | 8 | 1919 | Low | Not Rated |
| Reflection Lake Wayne County | 19 | 1974 | Low | Poor |
| Reflection Lake (Romosa Lake) Susquehanna County | 11 | 1952 | Low | Poor |
| Rehfeldt Bradford County | 15 | 1983 | Low | Not Rated |
| Resting Waters Gsc McKean County | 15 | 1977 | Low | Not Available |
| Reynolds Pond Susquehanna County | 26 | 1972 | Low | Not Available |
| Rickard Wayne County | 8 | — | Low | Poor |
| Robena Pond No 6 Greene County | 115 | 1980 | Low | Satisfactory |
| Robena Slurry Pond No 4 Greene County | 135 | 1955 | Low | Satisfactory |
| Rock Hollow Road Berks County | 26 | 1969 | Low | Poor |
| Romobe Lake Susquehanna County | 8 | 1914 | Low | Not Rated |
| Ross Wyoming County | 8 | 1919 | Low | Fair |
| Round Top Dauphin County | 8 | 1902 | Low | Not Rated |
| Russelton Slurry Pond No 3 Allegheny County | 153 | 1967 | Low | Satisfactory |
| Saddlers Run Lebanon County | 28 | 1957 | Low | Not Rated |
| Sadsbury Twp Detention Pond 1 Lancaster County | 15 | 1982 | Low | Not Rated |
| Sandspring Lake Pike County | 15 | — | Low | Fair |
| Schmunk Fayette County | 25 | — | Low | Not Rated |
| Schneider 2 Butler County | 32 | 1980 | Low | Not Available |
| Scotch Run Blair County | 40 | 1916 | Low | Not Rated |
| Sedimentation Pond "L-1" Jefferson County | 15 | 1992 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.