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 |
|---|---|---|---|---|---|---|---|
| Hollidaysburg Muleshoe Reservoir | Pennsylvania | Blair | 66 | High | Satisfactory | 1957 | Water Supply |
| Peace Valley (Pa-617) | Pennsylvania | Bucks | 66 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Kelsey Creek (Pa-600) | Pennsylvania | Tioga | 66 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Pine Grove | Pennsylvania | Lancaster | 65 | High | Fair | 1949 | Hydroelectric |
| Banning Refuse Slurry Pond | Pennsylvania | Fayette | 65 | Significant | Fair | - | Other |
| Hutchinson Fresh Water | Pennsylvania | Westmoreland | 65 | Low | Not Rated | - | Recreation |
| Pikes Creek | Pennsylvania | Luzerne | 65 | High | Satisfactory | 1911 | Water Supply |
| Lake Altoona | Pennsylvania | Blair | 65 | High | Fair | 1913 | Water Supply |
| Hibernia (Pa-436f) | Pennsylvania | Chester | 65 | High | Fair | 1994 | Flood Risk Reduction |
| Eberle (Pa-456) | Pennsylvania | Tioga | 65 | High | Satisfactory | 1964 | Flood Risk Reduction |
| Elmhurst | Pennsylvania | Lackawanna | 64 | High | Satisfactory | 1889 | Water Supply |
| Howells Run | Pennsylvania | Cambria | 64 | High | Satisfactory | 1964 | Water Supply |
| Brooklyn Run (Pa-468) | Pennsylvania | Susquehanna | 64 | High | Fair | 1967 | Flood Risk Reduction |
| Pa-479 | Pennsylvania | Washington | 63 | High | Satisfactory | 1969 | Flood Risk Reduction |
| Washington No 4 | Pennsylvania | Washington | 63 | High | Fair | 1903 | Recreation |
| Beechwood Lake (Pa-454) | Pennsylvania | Tioga | 63 | High | Fair | 1963 | Flood Risk Reduction |
| Montgomery Locks and Dam | Pennsylvania | Beaver | 62 | Significant | Not Available | 1936 | Navigation |
| Yellow Creek | Pennsylvania | Indiana | 62 | High | Satisfactory | 1969 | Recreation |
| Ringtown No 5 | Pennsylvania | Schuylkill | 62 | High | Poor | 1914 | Water Supply |
| Kern Run (Pa-638) | Pennsylvania | Snyder | 61 | High | Satisfactory | 1983 | Water Supply |
| Falling Springs | Pennsylvania | Luzerne | 61 | Significant | Satisfactory | 1905 | Recreation |
| Dalton Run | Pennsylvania | Somerset | 61 | High | Poor | 1905 | Water Supply |
| Bellwood | Pennsylvania | Blair | 61 | High | Poor | 1902 | Water Supply |
| Sugar Run | Pennsylvania | Westmoreland | 60 | High | Satisfactory | 1907 | Water Supply |
| Roxbury | Pennsylvania | Franklin | 60 | High | Fair | - | Water Supply |
| Glendale | Pennsylvania | Cambria | 60 | High | Fair | 1960 | Flood Risk Reduction |
| Allegheny River Lock and Dam 8 | Pennsylvania | Armstrong | 60 | Low | Not Available | 1931 | Navigation |
| Lake Antietam | Pennsylvania | Berks | 60 | High | Satisfactory | 1880 | Water Supply |
| Lake Scranton | Pennsylvania | Lackawanna | 60 | High | Satisfactory | 1898 | Water Supply |
| William L. Cochran Impounding | Pennsylvania | Blair | 60 | High | Satisfactory | 1898 | Water Supply |
| Bailey No. 5 Sedimentation Pond | Pennsylvania | Greene | 60 | High | Satisfactory | - | Other |
| South Slurry Pond | Pennsylvania | Washington | 60 | Low | Not Available | - | Tailings |
| Treated Water Pond | Pennsylvania | Washington | 59 | High | Satisfactory | 1966 | Other |
| Warren H Ohl | Pennsylvania | Clinton | 59 | High | Poor | 1965 | Water Supply |
| Duck Pond | Pennsylvania | Washington | 59 | Significant | Fair | 1983 | Other |
| Indspec No 3 | Pennsylvania | Butler | 59 | High | Fair | 1975 | Grade Stabilization |
| John C Smith | Pennsylvania | Bedford | 59 | High | Poor | 1932 | Water Supply |
| Lake Williams | Pennsylvania | York | 58 | High | Poor | 1912 | Water Supply |
| North Fork (Pa-406) | Pennsylvania | Potter | 58 | High | Fair | 1960 | Flood Risk Reduction |
| Sawmill Run | Pennsylvania | Butler | 58 | High | Fair | 1968 | Grade Stabilization |
| Allegheny River Lock and Dam 2 | Pennsylvania | Allegheny | 58 | Significant | Not Available | 1934 | Navigation |
| Bailey Mine Area No. 6 Sed Pond | Pennsylvania | Greene | 58 | High | Satisfactory | - | Other |
| Waste House No 1 | Pennsylvania | Schuylkill | 57 | High | Satisfactory | 1884 | Water Supply |
| Holtwood Ses Ash Basin No 2 | Pennsylvania | Lancaster | 57 | High | Fair | 2000 | Other |
| North Branch Dunlap Creek (Pa-470) | Pennsylvania | Fayette | 57 | High | Satisfactory | 1974 | Recreation |
| Maxwell Locks and Dam | Pennsylvania | Washington | 56 | Significant | Not Available | 1964 | Navigation |
| Shawnee Lake | Pennsylvania | Bedford | 56 | High | Fair | 1950 | Flood Risk Reduction |
| Township Line | Pennsylvania | Westmoreland | 56 | High | Poor | 1900 | Recreation |
| Kaercher Creek (Pa 478) | Pennsylvania | Berks | 56 | High | Fair | 1971 | Recreation |
| Leaser Lake | Pennsylvania | Lehigh | 56 | High | Fair | 1971 | 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.