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 |
|---|---|---|---|---|---|---|---|
| Briggs Street Detention | Pennsylvania | Lackawanna | 16 | High | Poor | - | Flood Risk Reduction |
| Mountain Lake | Pennsylvania | Luzerne | 16 | High | Fair | 1910 | Recreation |
| Donald Amick Pond | Pennsylvania | Bedford | 16 | Low | Not Available | 1967 | Recreation |
| Duck Harbor Pond | Pennsylvania | Wayne | 16 | High | Fair | 1907 | Recreation |
| Loch Alsh Reservoir | Pennsylvania | Montgomery | 16 | High | Satisfactory | 1915 | Recreation |
| Mcconnell Lake | Pennsylvania | Pike | 16 | Significant | Fair | 1957 | Recreation |
| Blue Ridge Det | Pennsylvania | Butler | 16 | Significant | Not Rated | 1990 | Flood Risk Reduction |
| Andorra Springs Basin B | Pennsylvania | Montgomery | 16 | High | Fair | - | Flood Risk Reduction |
| Brier Crest Woods | Pennsylvania | Monroe | 16 | High | Fair | 1973 | Recreation |
| Orson Pond | Pennsylvania | Wayne | 16 | Significant | Fair | 1849 | Recreation |
| Lake Jo-Ann | Pennsylvania | Washington | 16 | High | Satisfactory | 1950 | Recreation |
| Rapp Run Flood Retarding | Pennsylvania | Montgomery | 16 | High | Satisfactory | 2014 | Flood Risk Reduction |
| Remington Road Detention | Pennsylvania | Montgomery | 16 | High | Fair | 1979 | Flood Risk Reduction |
| Lower West Deer Lake | Pennsylvania | Allegheny | 16 | High | Satisfactory | - | Recreation |
| Horsham Towne Lower Pond | Pennsylvania | Montgomery | 16 | Significant | Fair | 1988 | Flood Risk Reduction |
| Orchard Course No. 2 Impoundment | Pennsylvania | Butler | 16 | Low | Not Rated | 1994 | Flood Risk Reduction |
| Middle West Deer | Pennsylvania | Allegheny | 16 | High | Satisfactory | - | Recreation |
| Allegheny River Lock and Dam 5 | Pennsylvania | Armstrong | 16 | Low | Not Available | 1927 | |
| Mackiewicz | Pennsylvania | Tioga | 15 | Low | Not Available | 1969 | Recreation |
| Quakake | Pennsylvania | Carbon | 15 | High | Satisfactory | 1897 | Water Supply |
| Metroplex | Pennsylvania | Montgomery | 15 | Low | Fair | 1999 | Flood Risk Reduction |
| Bear Pond | Pennsylvania | Westmoreland | 15 | Low | Not Rated | - | Recreation |
| Helvetia | Pennsylvania | Clearfield | 15 | Low | Not Rated | 1921 | Recreation |
| Borg Dam | Pennsylvania | Tioga | 15 | High | Not Available | 1984 | Recreation |
| Rehfeldt | Pennsylvania | Bradford | 15 | Low | Not Rated | 1983 | Other |
| Creek | Pennsylvania | Bucks | 15 | Low | Fair | - | Recreation |
| Lake Lattimore | Pennsylvania | Pike | 15 | High | Poor | 1930 | Recreation |
| Clairton Lake | Pennsylvania | Somerset | 15 | High | Fair | 1952 | Recreation |
| Trostle Pond | Pennsylvania | Lackawanna | 15 | Significant | Fair | - | Recreation |
| Lakevue Estates | Pennsylvania | Butler | 15 | Significant | Not Rated | - | Other |
| Anthonys Mill | Pennsylvania | Berks | 15 | Significant | Fair | 1927 | Recreation |
| Cold Stream | Pennsylvania | Centre | 15 | High | Satisfactory | 1889 | Recreation |
| Spangenberg Lake | Pennsylvania | Lackawanna | 15 | Significant | Fair | 1949 | Recreation |
| Lake Manjo | Pennsylvania | Luzerne | 15 | Low | Fair | 1932 | Recreation |
| Jewell Pond | Pennsylvania | Greene | 15 | Significant | Fair | - | Recreation |
| Mammoth Lake | Pennsylvania | Westmoreland | 15 | High | Satisfactory | 1969 | Recreation |
| Billets Pond | Pennsylvania | Bradford | 15 | Low | Not Rated | - | Recreation |
| Linden Lake | Pennsylvania | Fayette | 15 | Significant | Poor | 1955 | Recreation |
| Bucks Cove | Pennsylvania | Wayne | 15 | Low | Poor | - | Recreation |
| Lake John | Pennsylvania | Sullivan | 15 | Low | Not Rated | 1958 | Recreation |
| Lower Alford Lake | Pennsylvania | Susquehanna | 15 | High | Poor | 1919 | Recreation |
| Walker Lake | Pennsylvania | Pike | 15 | High | Satisfactory | 1953 | Recreation |
| Beaver Pond | Pennsylvania | Wayne | 15 | High | Satisfactory | 1909 | Recreation |
| Mingo Lake | Pennsylvania | Susquehanna | 15 | Low | Fair | 1895 | Recreation |
| Rossiter | Pennsylvania | Indiana | 15 | High | Poor | 1919 | Water Supply |
| Maiden Creek Reservoir | Pennsylvania | Berks | 15 | Low | Fair | 1960 | Recreation |
| Manheim Twp Detention Basin No 2 | Pennsylvania | Lancaster | 15 | High | Satisfactory | 1981 | Flood Risk Reduction |
| Cresswell Lower | Pennsylvania | Mercer | 15 | Significant | Not Rated | 2002 | Recreation |
| Ponderosa Pines | Pennsylvania | Wayne | 15 | High | Fair | 1970 | Recreation |
| Cooks Pond | Pennsylvania | Bradford | 15 | High | Fair | 1997 | 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.