Browse Dams
830 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 830 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 |
|---|---|---|---|---|---|---|---|
| New Jersey No Name # 40 Dam | New Jersey | Passaic | 15 | High | Poor | — | Recreation |
| Packanack Lake Dam | New Jersey | Passaic | 15 | High | Fair | 1921 | Recreation |
| Wallkill Lake Dam | New Jersey | Sussex | 15 | Low | Fair | 1930 | Recreation |
| Osborn Mills Dam | New Jersey | Somerset | 15 | Significant | Satisfactory | — | Water Supply |
| Fayson Lakes (West) Dam | New Jersey | Morris | 15 | Significant | Satisfactory | 1922 | Recreation |
| Red Valley Dam | New Jersey | Monmouth | 15 | Significant | Poor | 1927 | Recreation |
| Brown Dam | New Jersey | Salem | 15 | Low | Satisfactory | 1934 | Water Supply |
| Pinecliff Lake Dam | New Jersey | Passaic | 15 | High | Fair | 1927 | Recreation |
| Devoe Lake Dam | New Jersey | Middlesex | 15 | High | Satisfactory | 1935 | Recreation |
| Lake Aeroflex Dam | New Jersey | Sussex | 15 | Low | Poor | — | Recreation |
| Peddie Lake Dam | New Jersey | Mercer | 15 | High | Satisfactory | 1923 | Recreation |
| Ewans Mill Dam | New Jersey | Gloucester | 15 | Significant | Poor | — | Recreation |
| Grover'S Mill Dam | New Jersey | Mercer | 15 | Significant | Fair | 1931 | Recreation |
| Mcafee Glenwood Road Dam No. 2 | New Jersey | Sussex | 15 | Significant | Satisfactory | 2000 | Flood Risk Reduction |
| Post Brook Dam | New Jersey | Passaic | 15 | High | Satisfactory | 1923 | Recreation |
| Lake Winona Dam | New Jersey | Morris | 15 | High | Poor | 1950 | Recreation |
| Upper East Highland Lake Dam | New Jersey | Sussex | 15 | Significant | Satisfactory | 1957 | Recreation |
| Green Pond Reservoir Dam | New Jersey | Morris | 15 | Low | — | — | Recreation |
| Rock Lodge Pond Dam | New Jersey | Sussex | 15 | Significant | Satisfactory | 1907 | |
| Sallys Pond Dam | New Jersey | Passaic | 15 | High | Fair | — | Recreation |
| Bridgepoint Dam | New Jersey | Somerset | 15 | Significant | Satisfactory | 1988 | Flood Risk Reduction |
| Lake Lackawanna Dam | New Jersey | Sussex | 15 | Significant | Fair | 1910 | Recreation |
| Lake Marcia Dam | New Jersey | Sussex | 15 | Low | — | — | Recreation |
| Manalapan Lake Dam | New Jersey | Middlesex | 15 | High | Satisfactory | — | Recreation |
| Swannanoa Lake #1 (South) Dam | New Jersey | Morris | 15 | High | Satisfactory | 1914 | Recreation |
| Kennedy Pond Dam | New Jersey | Ocean | 15 | Low | — | — | Recreation |
| White Meadow Lake Dam | New Jersey | Morris | 15 | High | Satisfactory | — | Recreation |
| Jefferson Lake Dam | New Jersey | Sussex | 15 | Low | Poor | — | Recreation |
| East Highland Lake Dam | New Jersey | Sussex | 15 | Significant | Satisfactory | 1947 | Recreation |
| Stony Brook #2 (Willow Lake) Dam | New Jersey | Mercer | 15 | Low | Satisfactory | 1959 | Recreation |
| Silver Lake Dam | New Jersey | Morris | 15 | Low | — | — | Recreation |
| Hemlock Pond Dam | New Jersey | Sussex | 15 | Low | — | — | Recreation |
| Colesville Reservoir Dam | New Jersey | Sussex | 15 | Significant | Poor | — | Water Supply |
| Sawmill Pond Dam | New Jersey | Sussex | 15 | Low | Poor | — | Recreation |
| Gale Dam | New Jersey | Burlington | 15 | Low | Poor | 1970 | Recreation |
| Mountain Lake Dam | New Jersey | Morris | 15 | High | Satisfactory | — | Recreation |
| Shaws Mill Pond Dam | New Jersey | Cumberland | 15 | Significant | Fair | — | Recreation |
| Long Pine Pond Dam | New Jersey | Sussex | 15 | Low | Not Available | 1995 | Recreation |
| Lower Mount Glen Lake Dam | New Jersey | Passaic | 15 | High | Fair | 1927 | Recreation |
| Hipps Folley Dam | New Jersey | Burlington | 15 | Low | Not Available | 1967 | Recreation |
| Harrison Mountain Lake Dam | New Jersey | Passaic | 15 | Low | — | 1930 | Recreation |
| Picatinny Lake | New Jersey | Morris | 15 | High | Fair | 1904 | Water Supply |
| Killdeer Lake Dam | New Jersey | Burlington | 15 | Significant | Poor | — | Recreation |
| Jackson Pond Dam | New Jersey | Union | 15 | Significant | Satisfactory | — | Other |
| Mill Dam | New Jersey | Burlington | 15 | Low | Poor | 1908 | Recreation |
| Harrisonville Dam | New Jersey | Gloucester | 15 | Significant | Poor | — | Recreation |
| New Jersey No Name # 85 Dam | New Jersey | Burlington | 15 | Low | — | 1950 | Recreation |
| New Camp Site Dam | New Jersey | Camden | 15 | Low | Fair | 1946 | Recreation |
| Old Mill Pond Dam | New Jersey | Monmouth | 15 | Significant | Satisfactory | 1948 | Recreation |
| Holstein Lake Dam | New Jersey | Morris | 15 | Low | — | 1875 | 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.