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 651–675 of 780
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Conneautville (Pa-112) Crawford County | 41 | 1984 | High | Fair |
| Conemaugh Dam Westmoreland County | 144 | 1952 | High | Not Available |
| Compton Lackawanna County | 19 | 1957 | High | Fair |
| Comfort Lake Susquehanna County | 13 | 1916 | High | Satisfactory |
| Colyer Lake Centre County | 38 | 1966 | High | Fair |
| Colver Cambria County | 52 | 1994 | High | Fair |
| Collum Pond Tioga County | 16 | 1965 | High | Not Available |
| Cold Stream Centre County | 15 | 1889 | High | Satisfactory |
| Cokeburg Washington County | 27 | 1902 | High | Poor |
| Cloe Lake Jefferson County | 43 | 1909 | High | Satisfactory |
| Clark Mills (Pa-490) Mercer County | 45 | 1971 | High | Fair |
| 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 |
| Christman Berks County | 27 | 1972 | High | Poor |
| Christian E Siegrist Schuylkill County | 125 | 1994 | High | Satisfactory |
| Cherry Valley Washington County | 33 | 1947 | High | Poor |
| Chapman Warren County | 24 | 1949 | High | Poor |
| Chamberlain Pond Wyoming County | 18 | 1919 | High | Fair |
| Chamberlain Bradford County | 19 | 1970 | High | Fair |
| Chalker Susquehanna County | 21 | 1984 | High | Satisfactory |
| Center Campus Pond No. 1 Dauphin County | 19 | — | High | Satisfactory |
| Cedar Crest Boulevard Lehigh County | 7 | 1998 | High | Satisfactory |
| Cave Hollow Fayette County | 29 | 1926 | High | Fair |
| Carbondale No 4 Lackawanna County | 28 | 1892 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.