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 451–475 of 547
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Cummings Indiana County | 29 | 1908 | High | Fair |
| Crystal Run Reservoir Schuylkill County | 38 | 1898 | High | Fair |
| Crum Creek Delaware County | 25 | 1920 | High | Fair |
| Crossing No 5 Chester County | 13 | 2005 | Significant | Fair |
| Crossing No 3 Chester County | 13 | — | Significant | Fair |
| Crooked Creek (Pa-488) Mercer County | 29 | 1994 | High | Fair |
| Crescent Lake Pike County | 45 | 1959 | High | Fair |
| Creek Bucks County | 15 | — | Low | Fair |
| Cranberry Lake Susquehanna County | 8 | 1919 | Low | Fair |
| Country Bend Bucks County | 12 | 1986 | Significant | Fair |
| Cornwall Tailings Lebanon County | 200 | 1961 | High | Fair |
| Core Creek (Pa-620) Bucks County | 47 | 1976 | High | Fair |
| Cooks Pond Bradford County | 15 | 1997 | High | Fair |
| Conneautville (Pa-112) Crawford County | 41 | 1984 | High | Fair |
| Conemaugh Equalization Pond Indiana County | 31 | 1987 | Low | Fair |
| Conashaugh Lake Pike County | 14 | 1969 | Significant | Fair |
| Compton Lackawanna County | 19 | 1957 | High | Fair |
| Comet Lake Franklin County | 38 | 1962 | Significant | Fair |
| Colyer Lake Centre County | 38 | 1966 | High | Fair |
| Colver Cambria County | 52 | 1994 | High | Fair |
| Cobey Pond Pike County | 16 | 1962 | Low | Fair |
| Cobbs Lake Wayne County | 13 | 1926 | Low | Fair |
| Club Wayne County | 8 | 1919 | Low | Fair |
| Clark Mills (Pa-490) Mercer County | 45 | 1971 | High | Fair |
| Clarence F. Walker Lake (Pa-637) Snyder County | 53 | 1970 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.