Browse Dams
11,351 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 11,351 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 |
|---|---|---|---|---|---|---|---|
| Alcyon Lake Dam | New Jersey | Gloucester | 12 | Significant | Satisfactory | 1943 | Recreation |
| Lake Watawga | Pennsylvania | Wayne | 12 | Significant | Poor | 1907 | Recreation |
| Pine Lake Park Dam | New York | Westchester | 12 | Significant | Poor | — | Recreation |
| Hap Cremean Lagoon #2 | Ohio | Franklin | 12 | Significant | Satisfactory | 2010 | Tailings |
| Woodmark Community Pond | Maryland | Howard | 12 | Significant | Unsatisfactory | 1968 | Recreation |
| Sioux Lake Dam | New Jersey | Burlington | 12 | Significant | Satisfactory | — | Recreation |
| Paradise Lake No. 2 | Pennsylvania | Fayette | 12 | Significant | Poor | 1973 | Recreation |
| Holly Dam | Michigan | Oakland | 12 | Significant | Poor | 1840 | Recreation |
| Rader Pond Dam | Connecticut | Litchfield | 12 | Significant | Unsatisfactory | — | Recreation |
| North Fork Lake Dam | Alaska | Prince of Wales-Hyder Census Area | 12 | Significant | Not Rated | — | Water Supply |
| Highland Lower Reservoir Dam | New York | Ulster | 12 | Significant | Fair | 1916 | Water Supply |
| Waiting Springs Swm Pond | Maryland | Howard | 12 | Significant | Satisfactory | 1971 | Flood Risk Reduction |
| Lake Oberon Dam | New York | Onondaga | 12 | Significant | Satisfactory | 1974 | Recreation |
| Centerton Lake Dam | New Jersey | Salem | 12 | Significant | Poor | 1942 | Recreation |
| Hackensack Golf Club Dam | New Jersey | Bergen | 12 | Significant | Satisfactory | 1950 | Irrigation |
| Lake Juliet Dam | New Jersey | Morris | 12 | Significant | Poor | 1919 | Recreation |
| Little Keen Pond | Pennsylvania | Wayne | 12 | Significant | Fair | 1902 | Recreation |
| Moosic Lakes | Pennsylvania | Lackawanna | 12 | Significant | Poor | — | Recreation |
| Duffield Dam | Connecticut | New Haven | 12 | Significant | Fair | 1880 | Recreation |
| Upper Porter Pond Dam | Massachusetts | Plymouth | 12 | Significant | Fair | 1940 | Recreation |
| Fox Hollow Lake Dam | New Jersey | Sussex | 12 | Significant | Satisfactory | 1925 | Recreation |
| Hough Millpond Dam | South Carolina | Kershaw | 12 | Significant | Fair | 1935 | Recreation |
| Highway Lake Dam A | Texas | Harrison | 12 | Significant | Not Rated | 1925 | Recreation |
| Fairfield Sewage Equalization Basin - Lagoon 2 | Washington | Spokane | 12 | Significant | Fair | 1966 | Other |
| Silver Spring Dam | Texas | Bandera | 12 | Significant | Not Rated | — | Other |
| Leatherwood Lake Dam | Ohio | Guernsey | 12 | Significant | Satisfactory | 1972 | Recreation |
| Gaylord Pond Dam | Connecticut | Litchfield | 12 | Significant | Satisfactory | 1900 | Recreation |
| Sportsmans Pond Dam | Massachusetts | Worcester | 12 | Significant | Fair | 1898 | Recreation |
| Ryder Pond Dam | New York | Dutchess | 12 | Significant | Poor | 1951 | Recreation |
| Great Brook Reservoir Dam | Connecticut | New Haven | 12 | Significant | Not Rated | 1925 | Recreation |
| Mansfield Training Dam #2 | Connecticut | Tolland | 12 | Significant | Fair | 1968 | Recreation |
| Beal Reservoir Levee | Texas | Brazoria | 12 | Significant | Poor | 1950 | Recreation |
| Cellu Company Dam | Connecticut | Hartford | 12 | Significant | Fair | 1950 | Water Supply |
| Bristol Myers Squibb Dam | Connecticut | New Haven | 12 | Significant | Satisfactory | — | Other |
| Shaker Pond Dam | Connecticut | Hartford | 12 | Significant | Fair | 1880 | Recreation |
| Bush Pond Dam | Connecticut | New London | 12 | Significant | Fair | — | Recreation |
| Vaughn Log Pond | Oregon | Lane | 12 | Significant | Not Rated | 1951 | Other |
| Crane'S Pond Dam | Iowa | Henry | 12 | Significant | Satisfactory | 1989 | Recreation |
| Lloyd Sutton Dam | New York | Cortland | 12 | Significant | Not Rated | 1968 | Fire Protection, Stock, Or ... |
| Forest Lake | Pennsylvania | Susquehanna | 12 | Significant | Satisfactory | 1842 | Recreation |
| Fallen Leaf Lake Dam | California | El Dorado | 12 | Significant | Not Rated | 1934 | Recreation |
| Willow Lake | Kansas | Sedgwick | 12 | Significant | Fair | — | Recreation |
| Griswold Lower Pond Dam | Massachusetts | Essex | 12 | Significant | Fair | 1983 | Recreation |
| Jacklin Lake Dam | Connecticut | Hartford | 12 | Significant | Satisfactory | — | Recreation |
| Doctors Lake Dam | Florida | Clay | 12 | Significant | Fair | — | Flood Risk Reduction |
| Rock City Saw Mill Dam | New York | Dutchess | 12 | Significant | Poor | 1900 | Recreation |
| Swans Pond Dam | Massachusetts | Worcester | 12 | Significant | Fair | 1848 | Irrigation |
| Siegel Marsh | Pennsylvania | Erie | 12 | Significant | Not Rated | 1958 | Recreation |
| Mosher Dam | New York | Oswego | 12 | Significant | Satisfactory | 1937 | Other |
| Monhagen Lake Dam | New York | Orange | 12 | Significant | Fair | 1867 | Water Supply |
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.