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 |
|---|---|---|---|---|---|---|---|
| Big Elk Lake | Pennsylvania | Susquehanna | 12 | Significant | Fair | 1860 | Recreation |
| Erie Pool #4 Dam | Pennsylvania | Crawford | 12 | Low | Fair | 1980 | Fish and Wildlife Pond |
| Upper | Pennsylvania | Northampton | 11 | Low | Fair | 1917 | Recreation |
| Huggy Bear Lake | Pennsylvania | Pike | 11 | Significant | Poor | — | Recreation |
| Wanzo | Pennsylvania | Bradford | 11 | Low | Not Rated | — | Recreation |
| Whipporwill | Pennsylvania | Schuylkill | 11 | Significant | Satisfactory | — | Recreation |
| Sullivan | Pennsylvania | Sullivan | 11 | Low | Not Rated | 1948 | Recreation |
| Wicks | Pennsylvania | Pike | 11 | Low | Fair | 1931 | Recreation |
| Decker Swamp | Pennsylvania | Pike | 11 | Low | Poor | 1951 | Recreation |
| Sprint Lake | Pennsylvania | Pike | 11 | Low | Fair | — | Recreation |
| Needle | Pennsylvania | Lackawanna | 11 | Low | Poor | 1974 | Recreation |
| Lake Henry | Pennsylvania | Wayne | 11 | High | Fair | 1865 | Recreation |
| Shawnee Pond | Pennsylvania | Monroe | 11 | Significant | Satisfactory | 2008 | Water Supply |
| Leopard Lake | Pennsylvania | Chester | 11 | High | Fair | — | Recreation |
| Black Rock | Pennsylvania | Montgomery | 11 | Low | Satisfactory | 1900 | Water Supply |
| Reflection Lake (Romosa Lake) | Pennsylvania | Susquehanna | 11 | Low | Poor | 1952 | Recreation |
| Kessler | Pennsylvania | York | 11 | Low | Not Rated | 1937 | Grade Stabilization |
| Lake Paupackan | Pennsylvania | Wayne | 11 | High | Satisfactory | 1914 | Recreation |
| Polk Pond | Pennsylvania | Susquehanna | 11 | Low | Fair | 1996 | Recreation |
| Ashley Furniture | Pennsylvania | Berks | 11 | Undetermined | Not Rated | 1991 | Flood Risk Reduction |
| Rocky Spring Dam | Pennsylvania | Franklin | 11 | Undetermined | Not Rated | 1967 | Recreation |
| Alpine Lake | Pennsylvania | Monroe | 11 | Low | Not Rated | 1962 | Recreation |
| Pocono Laurel Lake | Pennsylvania | Monroe | 11 | Significant | Fair | — | Recreation |
| Foster Pond | Pennsylvania | Sullivan | 11 | Low | Not Rated | — | Recreation |
| Brook Crossing Detention | Pennsylvania | Chester | 11 | Significant | Fair | — | Flood Risk Reduction |
| Jennings Pond | Pennsylvania | Wyoming | 11 | High | Poor | 1900 | Recreation |
| Tink Wig Lake | Pennsylvania | Pike | 11 | Significant | Fair | 1968 | Recreation |
| Clear Lake | Pennsylvania | Crawford | 11 | Significant | Not Rated | 1855 | Recreation |
| Elk Lake | Pennsylvania | Wayne | 11 | High | Satisfactory | 1865 | Recreation |
| Mcdowell Detention Basin | Pennsylvania | Erie | 11 | High | Satisfactory | 2004 | Flood Risk Reduction |
| Fairways Lower | Pennsylvania | Bucks | 11 | High | Satisfactory | 1989 | Flood Risk Reduction |
| Analomink Lake | Pennsylvania | Monroe | 11 | Significant | Satisfactory | 1910 | Recreation |
| Mill Creek Detention Basin | Pennsylvania | Montgomery | 11 | High | Fair | 1986 | Flood Risk Reduction |
| Cold Storage | Pennsylvania | Perry | 11 | Significant | Satisfactory | — | Recreation |
| Rock Airport | Pennsylvania | Allegheny | 11 | Significant | Fair | — | Recreation |
| Woods Edge - Pond A | Pennsylvania | Lancaster | 11 | Low | Not Rated | — | Flood Risk Reduction |
| Queen Esther Lake | Pennsylvania | Bradford | 11 | Significant | Not Rated | 1972 | Recreation |
| Pngc Reservoir No 6 | Pennsylvania | Allegheny | 11 | High | Satisfactory | — | Irrigation |
| Berlin Road Detention Basin | Pennsylvania | Westmoreland | 11 | High | Satisfactory | 2003 | Flood Risk Reduction |
| Children's Lake | Pennsylvania | Cumberland | 11 | Significant | Unsatisfactory | — | Recreation |
| East Birchwood Lake | Pennsylvania | Pike | 11 | High | Satisfactory | 2006 | Recreation |
| Erie Pool K Dam | Pennsylvania | Crawford | 11 | Low | Poor | 1971 | Fish and Wildlife Pond |
| Pond C | Pennsylvania | Cumberland | 10 | Undetermined | Not Rated | — | Tailings |
| Wood | Pennsylvania | Bradford | 10 | Significant | Not Rated | — | Recreation |
| Stookey | Pennsylvania | Wayne | 10 | Significant | Fair | — | Recreation |
| Basin 2 | Pennsylvania | York | 10 | High | Satisfactory | 1998 | Flood Risk Reduction |
| Lake Greeley | Pennsylvania | Pike | 10 | High | Satisfactory | 1916 | Recreation |
| Gumble Brothers | Pennsylvania | Pike | 10 | Low | Poor | 1950 | Recreation |
| Williams Pond | Pennsylvania | Wayne | 10 | Low | Fair | 1930 | Recreation |
| Horton Lake | Pennsylvania | Susquehanna | 10 | High | Fair | 1956 | 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.