Browse Dams
1,492 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,492 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Peach Bottom Atomic Power | Pennsylvania | York | 34 | Low | Not Rated | 1973 | Debris Control |
| Grays Landing Lock and Dam | Pennsylvania | Greene | 33 | Significant | Not Available | 1995 | Navigation |
| Feldman (Pa-420) | Pennsylvania | Wayne | 33 | High | Fair | 1961 | Flood Risk Reduction |
| Keister | Pennsylvania | Fayette | 33 | Low | Not Rated | 1900 | Recreation |
| Mathies Sediment Pond No 5 | Pennsylvania | Washington | 33 | Significant | Fair | 1982 | Other |
| Cherry Valley | Pennsylvania | Washington | 33 | High | Poor | 1947 | Recreation |
| Slovene Camp | Pennsylvania | Lawrence | 33 | Low | Not Rated | 1966 | Recreation |
| Pine Creek (North Park Lake) | Pennsylvania | Allegheny | 33 | High | Fair | 1936 | Recreation |
| Butler Hunt Club | Pennsylvania | Butler | 33 | High | Not Available | 1968 | Fish and Wildlife Pond |
| Shickshinny Lake | Pennsylvania | Luzerne | 33 | High | Poor | 1965 | Recreation |
| Kyle | Pennsylvania | Jefferson | 33 | High | Satisfactory | 1910 | Recreation |
| Bradys Run | Pennsylvania | Beaver | 33 | High | Poor | 1949 | Recreation |
| Van Meter | Pennsylvania | Crawford | 33 | Significant | Poor | — | Recreation |
| Biddle Hollow Reservoir | Pennsylvania | Blair | 33 | Low | Not Rated | 1911 | Water Supply |
| Campbells Ledge | Pennsylvania | Luzerne | 33 | Significant | Fair | 1906 | Recreation |
| Taylor Run | Pennsylvania | Tioga | 33 | Low | Not Rated | — | Other |
| Lake Hauto | Pennsylvania | Carbon | 33 | High | Satisfactory | 1914 | Recreation |
| Poe | Pennsylvania | Centre | 33 | High | Satisfactory | 1938 | Recreation |
| Belmont | Pennsylvania | Lackawanna | 33 | High | Poor | 1903 | Water Supply |
| Sandy Run | Pennsylvania | Cambria | 33 | High | Poor | 1964 | Recreation |
| Acme (Pa-657) | Pennsylvania | Westmoreland | 33 | High | Satisfactory | 1975 | Recreation |
| Braddock Locks and Dam | Pennsylvania | Allegheny | 33 | Significant | Not Available | 1905 | Navigation |
| Spring Brook Intake | Pennsylvania | Lackawanna | 33 | High | Fair | 1894 | Water Supply |
| Hemlock Lake | Pennsylvania | Monroe | 33 | High | Fair | 1950 | Recreation |
| Crystal Lake | Pennsylvania | Luzerne | 32 | High | Satisfactory | 1888 | Water Supply |
| Hosensack No 4 | Pennsylvania | Lehigh | 32 | Significant | Fair | 1885 | Recreation |
| Luzerne Coal CO Wetland | Pennsylvania | Fayette | 32 | Low | Not Rated | — | Recreation |
| Detention Pond | Pennsylvania | Lehigh | 32 | Low | Fair | 1984 | Other |
| Schneider 2 | Pennsylvania | Butler | 32 | Low | Not Available | 1980 | Fish and Wildlife Pond |
| Greenwood Lake | Pennsylvania | Schuylkill | 32 | High | Poor | 1880 | Recreation |
| Cherry Tree Farm | Pennsylvania | York | 32 | Significant | Satisfactory | 1980 | Irrigation |
| Caledonia Water Company | Pennsylvania | Franklin | 32 | Significant | Fair | 1967 | Water Supply |
| Fairmount | Pennsylvania | Philadelphia | 32 | Significant | Satisfactory | 1927 | Water Supply |
| Bailey Sediment Pond No 1 | Pennsylvania | Greene | 32 | High | Satisfactory | — | Other |
| Baker | Pennsylvania | Susquehanna | 32 | Low | Fair | 1963 | Recreation |
| Lake Walter | Pennsylvania | Susquehanna | 32 | High | Fair | 1968 | Recreation |
| Bailey Mine Area No. 3 Saddle D | Pennsylvania | Greene | 32 | High | Satisfactory | 2014 | Other |
| Mine 33 Sed Pond No. 1 | Pennsylvania | Cambria | 32 | Low | Not Available | — | Other |
| Donegal | Pennsylvania | Westmoreland | 32 | High | Satisfactory | 1967 | Recreation |
| Beaver Lake | Pennsylvania | Wayne | 32 | Significant | Fair | 1962 | Recreation |
| Royal Reservoir | Pennsylvania | Fayette | 32 | Significant | Not Rated | 1908 | Recreation |
| Lake Somerset | Pennsylvania | Chester | 32 | High | Fair | 1969 | Recreation |
| Klingerman | Pennsylvania | Columbia | 32 | Significant | Not Rated | — | Recreation |
| South Low Dissolved Solids Imp | Pennsylvania | Beaver | 32 | Significant | Satisfactory | 1974 | Other |
| Laurel Hill Lake | Pennsylvania | Somerset | 32 | High | Satisfactory | 1940 | Recreation |
| Roamingwood Lake | Pennsylvania | Wayne | 32 | High | Satisfactory | 1971 | Recreation |
| Allegheny River Lock and Dam 7 | Pennsylvania | Armstrong | 32 | Low | Not Available | 1931 | Navigation |
| Sky View Lake (Pa-440) | Pennsylvania | Pike | 32 | High | Fair | 1964 | Flood Risk Reduction |
| North Low Dissolved Solids Imp | Pennsylvania | Beaver | 32 | Significant | Satisfactory | 1974 | Other |
| Cowans Gap | Pennsylvania | Fulton | 32 | High | Satisfactory | 1936 | Recreation |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.