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 |
|---|---|---|---|---|---|---|---|
| Laurel Run | Pennsylvania | Lackawanna | 44 | High | Fair | 1894 | Recreation |
| Fawn Lake | Pennsylvania | Schuylkill | 44 | High | Satisfactory | 1972 | Recreation |
| Maple Creek Silt Pond B | Pennsylvania | Washington | 43 | High | Satisfactory | 1977 | Other |
| Ethel Springs | Pennsylvania | Westmoreland | 43 | High | Poor | 1900 | Water Supply |
| F | Pennsylvania | Luzerne | 43 | High | Fair | 1916 | Water Supply |
| Faylor Lake (Pa-636) | Pennsylvania | Snyder | 43 | High | Fair | 1983 | Recreation |
| Hemlock Lake | Pennsylvania | Indiana | 43 | High | Satisfactory | 1970 | Recreation |
| Martins Creek Ses Ash Basin No 4 | Pennsylvania | Northampton | 43 | Significant | Fair | 1989 | Other |
| Williams Run | Pennsylvania | Cambria | 43 | High | Fair | 1956 | Water Supply |
| Spring Valley Lake | Pennsylvania | Allegheny | 43 | Low | Fair | 1964 | Recreation |
| Cloe Lake | Pennsylvania | Jefferson | 43 | High | Satisfactory | 1909 | Recreation |
| Big Spring | Pennsylvania | Westmoreland | 43 | High | Satisfactory | 1907 | Water Supply |
| Colvin Sedimentation Pond | Pennsylvania | Greene | 43 | Significant | Satisfactory | 1980 | Other |
| Meadow Grounds | Pennsylvania | Fulton | 43 | High | Satisfactory | 1964 | Recreation |
| Upper Owl Creek | Pennsylvania | Schuylkill | 43 | High | Satisfactory | 1921 | Water Supply |
| Barneston (Pa 432) | Pennsylvania | Chester | 43 | High | Fair | 1983 | Flood Risk Reduction |
| Lloydell | Pennsylvania | Cambria | 43 | High | Fair | 1906 | Water Supply |
| Pine Run No 1 | Pennsylvania | Luzerne | 43 | High | Poor | 1884 | Recreation |
| Ryerson Station | Pennsylvania | Greene | 42 | High | Unsatisfactory | 1960 | Recreation |
| 14-North Impoundment | Pennsylvania | Allegheny | 42 | High | Satisfactory | - | Other |
| Dutch Fork | Pennsylvania | Washington | 42 | High | Satisfactory | 1959 | Recreation |
| Pole Run No 4 | Pennsylvania | Schuylkill | 42 | High | Satisfactory | 1877 | Water Supply |
| Breskin No 2 | Pennsylvania | Westmoreland | 42 | High | Satisfactory | 1971 | Recreation |
| Pike Township | Pennsylvania | Clearfield | 42 | Low | Not Rated | 1975 | Water Supply |
| Mount Airy | Pennsylvania | Monroe | 42 | High | Poor | 1974 | Recreation |
| Rock Run | Pennsylvania | Chester | 42 | High | Fair | 1917 | Water Supply |
| Lake Meade | Pennsylvania | Adams | 42 | High | Poor | 1967 | Recreation |
| Pleasant Valley | Pennsylvania | Carbon | 42 | Low | Satisfactory | 1967 | Recreation |
| Anderson Creek | Pennsylvania | Clearfield | 42 | High | Fair | 1903 | Water Supply |
| Hilltown (Pa-625) | Pennsylvania | Bucks | 42 | High | Fair | 1980 | Flood Risk Reduction |
| Village Two At New Hope | Pennsylvania | Bucks | 41 | Undetermined | Not Rated | 1980 | Flood Risk Reduction |
| Conneautville (Pa-112) | Pennsylvania | Crawford | 41 | High | Fair | 1984 | Flood Risk Reduction |
| Waste House No 3 | Pennsylvania | Schuylkill | 41 | High | Satisfactory | 1902 | Water Supply |
| Doverspike No 1 | Pennsylvania | Jefferson | 41 | High | Satisfactory | 1970 | Recreation |
| Humboldt Reservoir | Pennsylvania | Luzerne | 41 | Significant | Fair | 1911 | Water Supply |
| Fawn Lake | Pennsylvania | Pike | 41 | High | Fair | 1971 | Recreation |
| Trout Run | Pennsylvania | Westmoreland | 41 | High | Fair | 1927 | Water Supply |
| Griffin | Pennsylvania | Lackawanna | 40 | High | Poor | 1888 | Water Supply |
| Indian Run | Pennsylvania | Berks | 40 | High | Unsatisfactory | 1890 | Water Supply |
| Slurry Pond #2 | Pennsylvania | Indiana | 40 | Significant | Not Available | - | Tailings |
| New Holland Reservoir | Pennsylvania | Lancaster | 40 | High | Fair | 1953 | Water Supply |
| Midfield Sedimentation Pond | Pennsylvania | Allegheny | 40 | High | Satisfactory | 1988 | Flood Risk Reduction |
| Tubmill | Pennsylvania | Westmoreland | 40 | High | Fair | 1907 | Water Supply |
| Rainbow (Pa-460) | Pennsylvania | Crawford | 40 | High | Fair | 1964 | Flood Risk Reduction |
| Saul Run (Pa-458) | Pennsylvania | Mercer | 40 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Raven Run No 3 | Pennsylvania | Schuylkill | 40 | High | Fair | 1885 | Water Supply |
| Scotch Run | Pennsylvania | Blair | 40 | Low | Not Rated | 1916 | Water Supply |
| Thorn Run | Pennsylvania | Butler | 40 | High | Satisfactory | 1903 | Water Supply |
| Merriman | Pennsylvania | Butler | 40 | High | Fair | 1966 | Recreation |
| Montour Ash Basin No 1 | Pennsylvania | Montour | 40 | High | Satisfactory | 1971 | Other |
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.