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 251–275 of 378
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hart Perry County | 22 | 1978 | Low | Satisfactory |
| Harmar Storage Pond No 4 Allegheny County | 39 | 1980 | Low | Satisfactory |
| Hankin Chester County | 100 | 1989 | Low | Fair |
| Hanger Service Road Det Basin Allegheny County | 28 | 1992 | Low | Satisfactory |
| Hammond Lakes Tioga County | 23 | 1970 | Low | Not Available |
| Hamilton Street Lehigh County | 14 | 1983 | Low | Satisfactory |
| Haighs Pond Bradford County | 13 | — | Low | Not Rated |
| Gumble Brothers Pike County | 10 | 1950 | Low | Poor |
| Grubers Lake Monroe County | 12 | 1928 | Low | Fair |
| Groff Mill Lancaster County | 8 | 1919 | Low | Not Rated |
| Greisinger Butler County | 19 | 1956 | Low | Not Rated |
| Gregory Pond Monroe County | 8 | 1922 | Low | Fair |
| Great Stream Commons Lower Union County | 24 | 2001 | Low | Not Rated |
| Golden Pond Huntingdon County | 30 | 1968 | Low | Not Available |
| Giovannini Lackawanna County | 8 | 1955 | Low | Poor |
| George Snyder Potter County | 19 | 1973 | Low | Not Available |
| Ft Charles Young Venango County | 75 | — | Low | Not Rated |
| Foxton Lake Susquehanna County | 18 | 1874 | Low | Satisfactory |
| Foster Pond Sullivan County | 11 | — | Low | Not Rated |
| Forest Lake Pike County | 8 | 1890 | Low | Fair |
| Flat Rock Philadelphia County | 21 | 1977 | Low | Fair |
| Flatbrook Way Lake Pike County | 10 | — | Low | Fair |
| Flagler Monroe County | 19 | 1915 | Low | Fair |
| Fishpond Columbia County | 39 | 1975 | Low | Not Rated |
| Faulkner Brook (Sgl #299) Wayne County | 14 | — | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.