Browse Dams
831 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 831 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 |
|---|---|---|---|---|---|---|---|
| Upper East Highland Lake Dam | New Jersey | Sussex | 15 | Significant | Satisfactory | 1957 | Recreation |
| Colesville Reservoir Dam | New Jersey | Sussex | 15 | Significant | Poor | - | Water Supply |
| Osborn Mills Dam | New Jersey | Somerset | 15 | Significant | Satisfactory | - | Water Supply |
| Silver Lake Dam | New Jersey | Morris | 15 | Low | - | - | Recreation |
| Wallkill Lake Dam | New Jersey | Sussex | 15 | Low | Fair | 1930 | Recreation |
| Manalapan Lake Dam | New Jersey | Middlesex | 15 | High | Satisfactory | - | Recreation |
| Hipps Folley Dam | New Jersey | Burlington | 15 | Low | Not Available | 1967 | Recreation |
| Holstein Lake Dam | New Jersey | Morris | 15 | Low | - | 1875 | Recreation |
| Pinecliff Lake Dam | New Jersey | Passaic | 15 | High | Fair | 1927 | Recreation |
| Mcafee Glenwood Road Dam No. 2 | New Jersey | Sussex | 15 | Significant | Satisfactory | 2000 | Flood Risk Reduction |
| Grover'S Mill Dam | New Jersey | Mercer | 15 | Significant | Fair | 1931 | Recreation |
| Jefferson Lake Dam | New Jersey | Sussex | 15 | Low | Poor | - | Recreation |
| Long Pine Pond Dam | New Jersey | Sussex | 15 | Low | Not Available | 1995 | Recreation |
| Swannanoa Lake #1 (South) Dam | New Jersey | Morris | 15 | High | Satisfactory | 1914 | Recreation |
| Smoyer Park Dam | New Jersey | Mercer | 15 | Significant | Satisfactory | - | |
| Quick Pond Dam | New Jersey | Sussex | 15 | Low | - | - | Recreation |
| Lake Aeroflex Dam | New Jersey | Sussex | 15 | Low | Poor | - | Recreation |
| Green Pond Reservoir Dam | New Jersey | Morris | 15 | Low | - | - | Recreation |
| Mt. Hope Pond Dam | New Jersey | Morris | 15 | Significant | Poor | 1930 | Recreation |
| East Cove Dam | New Jersey | Sussex | 15 | High | Fair | - | Recreation |
| Harrisonville Dam | New Jersey | Gloucester | 15 | Significant | Poor | - | Recreation |
| Rock Lodge Pond Dam | New Jersey | Sussex | 15 | Significant | Satisfactory | 1907 | |
| Mountain Lake Dam | New Jersey | Morris | 15 | High | Satisfactory | - | Recreation |
| Post Brook Dam | New Jersey | Passaic | 15 | High | Satisfactory | 1923 | Recreation |
| Picatinny Lake | New Jersey | Morris | 15 | High | Fair | 1904 | Water Supply |
| New Jersey No Name # 85 Dam | New Jersey | Burlington | 15 | Low | - | 1950 | Recreation |
| Gale Dam | New Jersey | Burlington | 15 | Low | Poor | 1970 | Recreation |
| Peddie Lake Dam | New Jersey | Mercer | 15 | High | Satisfactory | 1923 | Recreation |
| Lake Panorama Dike | New Jersey | Sussex | 15 | High | Poor | 1987 | Recreation |
| Sallys Pond Dam | New Jersey | Passaic | 15 | High | Fair | - | Recreation |
| Lake Gerard Dike B | New Jersey | Sussex | 15 | High | Satisfactory | - | Recreation |
| Mary Elmer Lake Dam | New Jersey | Cumberland | 15 | Significant | Satisfactory | 1924 | Recreation |
| Mill Dam | New Jersey | Burlington | 15 | Low | Poor | 1908 | Recreation |
| Jackson Pond Dam | New Jersey | Union | 15 | Significant | Satisfactory | - | Other |
| Cooper River Parkway (Kaighn Ave) Dam | New Jersey | Camden | 15 | Significant | Poor | 1940 | Flood Risk Reduction |
| Ewans Mill Dam | New Jersey | Gloucester | 15 | Significant | Poor | - | Recreation |
| Watson'S Lake Dam | New Jersey | Camden | 15 | Significant | Poor | - | Recreation |
| Shaws Mill Pond Dam | New Jersey | Cumberland | 15 | Significant | Fair | - | Recreation |
| Killdeer Lake Dam | New Jersey | Burlington | 15 | Significant | Poor | - | Recreation |
| Lake Lackawanna Dam | New Jersey | Sussex | 15 | Significant | Fair | 1910 | Recreation |
| Devoe Lake Dam | New Jersey | Middlesex | 15 | High | Satisfactory | 1935 | Recreation |
| New Camp Site Dam | New Jersey | Camden | 15 | Low | Fair | 1946 | Recreation |
| Red Valley Dam | New Jersey | Monmouth | 15 | Significant | Poor | 1927 | Recreation |
| Harrison Mountain Lake Dam | New Jersey | Passaic | 15 | Low | - | 1930 | Recreation |
| Brown Dam | New Jersey | Salem | 15 | Low | Fair | 1934 | Water Supply |
| Lower Mount Glen Lake Dam | New Jersey | Passaic | 15 | High | Fair | 1927 | Recreation |
| Packanack Lake Dam | New Jersey | Passaic | 15 | High | Poor | 1921 | Recreation |
| Arrowhead Lake Pond Dam | New Jersey | Cumberland | 15 | Significant | Poor | 1972 | Recreation |
| Boonton Reservoir Dam | New Jersey | Morris | 15 | Significant | Satisfactory | 1900 | Water Supply |
| Preakness Hills C.C. Dam No. 1 | New Jersey | Passaic | 15 | High | Satisfactory | - | 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.