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 1–25 of 195
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Arthur Pike County | 7 | — | Low | Poor |
| Ashland Reservoir Schuylkill County | 80 | 1926 | High | Poor |
| Baxter Raw Water Basin Philadelphia County | 21 | 1916 | Low | Poor |
| Baylors Lake Lackawanna County | 9 | 1946 | Low | Poor |
| Bayly Pond Wayne County | 12 | 1961 | Low | Poor |
| Beaver Lake Lycoming County | 9 | 1919 | High | Poor |
| Beaver Lake Wayne County | 30 | 1970 | High | Poor |
| Beech Mountain Lake Luzerne County | 29 | 1966 | High | Poor |
| Bel-Aire Lake Susquehanna County | 17 | 1950 | High | Poor |
| Bellwood Blair County | 61 | 1902 | High | Poor |
| Belmont Lackawanna County | 33 | 1903 | High | Poor |
| Belmont Lake Wayne County | 28 | 1830 | High | Poor |
| Billings Pond Pike County | 9 | 1865 | Low | Poor |
| Boyd Keller Reservoir Clinton County | 53 | 1956 | High | Poor |
| Bradford City No 5 McKean County | 68 | 1957 | High | Poor |
| Bradys Run Beaver County | 33 | 1949 | High | Poor |
| Briggs Street Detention Lackawanna County | 16 | — | High | Poor |
| Brinton Lake Delaware County | 15 | 1900 | High | Poor |
| Bucks Cove Wayne County | 15 | — | Low | Poor |
| Cadjaw Pond Wayne County | 27 | 1914 | High | Poor |
| Cambridge Springs Crawford County | 14 | — | High | Poor |
| Canonsburg No 2 Washington County | 36 | 1932 | High | Poor |
| Carbaugh Run Adams County | 35 | 1960 | High | Poor |
| Carbondale No 4 Lackawanna County | 28 | 1892 | High | Poor |
| Chapman Warren County | 24 | 1949 | High | Poor |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.