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 601–625 of 780
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Railroad Creek (Pa-615) Bucks County | 34 | 1977 | High | Fair |
| Rainbow (Pa-460) Crawford County | 40 | 1964 | High | Fair |
| Rapp Run Flood Retarding Montgomery County | 16 | 2014 | High | Satisfactory |
| Raven Run No 2 Schuylkill County | 37 | 1885 | High | Fair |
| Raven Run No 3 Schuylkill County | 40 | 1885 | High | Fair |
| Raystown Dam Huntingdon County | 225 | 1973 | High | Not Available |
| Reading Anthracite CO - New St. Nicholas Breaker Schuylkill County | 100 | — | High | Not Available |
| Reading Anthracite - Trevorton Northumberland County | 25 | — | High | Not Available |
| Reddon-Hall Susquehanna County | 23 | 1985 | High | Fair |
| Remington Road Detention Montgomery County | 16 | 1979 | High | Fair |
| Reynoldsville Storage #4 Jefferson County | 16 | 1961 | High | Fair |
| Reynoldsville Storage #5 Jefferson County | 26 | 1901 | High | Poor |
| R G Struble Lake (Pa-431) Chester County | 31 | 1971 | High | Satisfactory |
| Richardson Washington County | 26 | 1976 | High | Satisfactory |
| Ridgebury Lake Bradford County | 35 | 1973 | High | Fair |
| Ridley Park Lake Delaware County | 15 | 1998 | High | Satisfactory |
| Ringtown No 5 Schuylkill County | 62 | 1914 | High | Poor |
| Ringtown Reservoir No 6 Schuylkill County | 50 | 1921 | High | Fair |
| Roamingwood Lake Wayne County | 32 | 1971 | High | Satisfactory |
| Robert Christman Monroe County | 13 | — | High | Unsatisfactory |
| Robin Run (Pa-612) Bucks County | 46 | 1971 | High | Fair |
| Robinson Fork (Pa-647) Washington County | 95 | 1977 | High | Satisfactory |
| Rock Run Chester County | 42 | 1917 | High | Fair |
| Rockview Reservoir Centre County | 53 | — | High | Poor |
| Rocky Glen Lackawanna County | 19 | 1903 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.