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 326–350 of 378
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Cassidy Lake Susquehanna County | 17 | 1970 | Low | Not Available |
| Carlisle Raw Water Intake Cumberland County | 9 | 1904 | Low | Satisfactory |
| Camp Sinoquipe Lake Fulton County | 19 | 1948 | Low | Not Rated |
| Camp Delmont Montgomery County | 19 | 1947 | Low | Fair |
| Camp Cayuga Lake Wayne County | 10 | 1931 | Low | Fair |
| Bucks Cove Wayne County | 15 | — | Low | Poor |
| Browns Lake Tioga County | 13 | 1964 | Low | Not Rated |
| Browns Greene County | 25 | 1919 | Low | Satisfactory |
| Broomall Lake Delaware County | 29 | 1883 | Low | Fair |
| Brooks Susquehanna County | 14 | — | Low | Fair |
| Bristol Swamp Potter County | 16 | 1976 | Low | Not Available |
| Brinkerton Westmoreland County | 29 | 1903 | Low | Not Rated |
| Brewster Pond Susquehanna County | 9 | 1919 | Low | Fair |
| Breskin No 1 Westmoreland County | 29 | 1973 | Low | Satisfactory |
| Brechbill Dam Tioga County | 16 | 1974 | Low | Not Available |
| Brague Bradford County | 22 | 1970 | Low | Not Rated |
| Brace Brook Wayne County | 23 | 1925 | Low | Fair |
| Bowmans Marsh Luzerne County | 10 | — | Low | Satisfactory |
| Boldy Butler County | 25 | 1967 | Low | Not Available |
| Black Rock Montgomery County | 11 | 1900 | Low | Satisfactory |
| Black Pond Bradford County | 13 | 1900 | Low | Not Rated |
| Billings Pond Pike County | 9 | 1865 | Low | Poor |
| Billets Pond Bradford County | 15 | — | Low | Not Rated |
| Biddle Hollow Reservoir Blair County | 33 | 1911 | Low | Not Rated |
| Benchley Pond Bradford County | 8 | — | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.