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 1251–1275 of 1,481
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Coleman Lackawanna County | 7 | 1924 | Low | Poor |
| Cold Stream Centre County | 15 | 1889 | High | Satisfactory |
| Cold Storage Perry County | 11 | — | Significant | Satisfactory |
| Cold Springs Park Chester County | 30 | — | Low | Poor |
| Cokeburg Washington County | 27 | 1902 | High | Poor |
| Cobey Pond Pike County | 16 | 1962 | Low | Fair |
| Cobbs Lake Wayne County | 13 | 1926 | Low | Fair |
| Club Wayne County | 8 | 1919 | Low | Fair |
| Cloe Lake Jefferson County | 43 | 1909 | High | Satisfactory |
| Clear Spring Lake Cambria County | 20 | 1977 | Undetermined | Not Rated |
| Clear Lake Crawford County | 11 | 1855 | Significant | Not Rated |
| Clark Mills (Pa-490) Mercer County | 45 | 1971 | High | Fair |
| Clark McKean County | 16 | 1966 | Low | Not Rated |
| Clarion U.-Venango Campus West End Venango County | 15 | — | High | Satisfactory |
| Clarence F. Walker Lake (Pa-637) Snyder County | 53 | 1970 | High | Fair |
| Clairton Lake Somerset County | 15 | 1952 | High | Fair |
| Ciccotti Bradford County | 12 | 1968 | Significant | Fair |
| Christman Berks County | 27 | 1972 | High | Poor |
| Christian E Siegrist Schuylkill County | 125 | 1994 | High | Satisfactory |
| Children's Lake Cumberland County | 11 | — | Significant | Unsatisfactory |
| Chester Co. Prison Storage Lagoon Chester County | 34 | — | Significant | Satisfactory |
| Cherry Valley Washington County | 33 | 1947 | High | Poor |
| Cherry Tree Farm York County | 32 | 1980 | Significant | Satisfactory |
| Cherry Run No 2 Armstrong County | 18 | 1964 | Low | Not Rated |
| Cherry Run No 1 Armstrong County | 18 | 1964 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.