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 301–325 of 378
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Culbertson Venango County | 12 | — | Low | Not Rated |
| Crystal Lake Somerset County | 16 | 1912 | Low | Not Rated |
| Cresson Lakes Cambria County | 20 | 1913 | Low | Not Rated |
| Crescent Lake Monroe County | 14 | 1957 | Low | Not Rated |
| Crescent Lake Susquehanna County | 9 | 1919 | Low | Satisfactory |
| Creek Bucks County | 15 | — | Low | Fair |
| Cranberry Lake Susquehanna County | 8 | 1919 | Low | Fair |
| Cranberry Glade Lake Somerset County | 8 | 1948 | Low | Not Rated |
| Cooling Pond A Armstrong County | 49 | 1995 | Low | Not Rated |
| Connell Sullivan County | 18 | 1915 | Low | Not Rated |
| Conneaut Marsh Crawford County | 8 | 1955 | Low | Not Rated |
| Conemaugh Township Impounding Somerset County | 35 | 1961 | Low | Not Rated |
| Conemaugh Equalization Pond Indiana County | 31 | 1987 | Low | Fair |
| Colonial No 3 Fayette County | 29 | 1907 | Low | Not Rated |
| Collins Pond Wayne County | 10 | 1867 | Low | Not Rated |
| Coleman Lackawanna County | 7 | 1924 | Low | Poor |
| Cold Springs Park Chester County | 30 | — | Low | Poor |
| Cobey Pond Pike County | 16 | 1962 | Low | Fair |
| Cobbs Lake Wayne County | 13 | 1926 | Low | Fair |
| Club Wayne County | 8 | 1919 | Low | Fair |
| Clark McKean County | 16 | 1966 | Low | Not Rated |
| Cherry Run No 2 Armstrong County | 18 | 1964 | Low | Not Rated |
| Cherry Run No 1 Armstrong County | 18 | 1964 | Low | Not Rated |
| Chambers Washington County | 17 | 1820 | Low | Fair |
| Chain Northampton County | 20 | — | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.