Browse Dams
1,316 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,316 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 |
|---|---|---|---|---|---|---|---|
| City Aka Upper Slater Pond Dam | Connecticut | New London | 31 | Significant | Poor | - | Recreation |
| Mad River Dam Homestead Avenue Dam | Connecticut | New Haven | 31 | High | Poor | 1900 | Water Supply |
| Seymour Reservoir #2 Dam | Connecticut | New Haven | 31 | Significant | Fair | 1931 | Water Supply |
| Lake Wintergreen Dam | Connecticut | New Haven | 31 | High | Satisfactory | 1863 | Water Supply |
| Spaulding Pond Dam | Connecticut | New London | 31 | High | Satisfactory | 1965 | Flood Risk Reduction |
| Mianus Filter Plant Dam | Connecticut | Fairfield | 31 | High | Fair | 1875 | Water Supply |
| South Flood Control Dam | Connecticut | Hartford | 31 | High | Satisfactory | 1964 | Flood Risk Reduction |
| Paper Goods Pond Dam | Connecticut | Hartford | 30 | Significant | Poor | 1920 | Recreation |
| Asylum Reservoir #4 Dam | Connecticut | Middlesex | 30 | Significant | Satisfactory | - | Water Supply |
| Mount Higby Reservoir Dam | Connecticut | Middlesex | 30 | High | Satisfactory | 1897 | Water Supply |
| Lake Harwinton Dam | Connecticut | Litchfield | 30 | High | Satisfactory | 1930 | Recreation |
| Converse Lake Dam | Connecticut | Fairfield | 30 | High | Fair | 1900 | Recreation |
| Clarks Pond Dam | Connecticut | New Haven | 30 | Significant | Satisfactory | - | Recreation |
| Fairview Reservoir Dam and Dikes | Connecticut | New London | 30 | High | Fair | 1868 | Water Supply |
| Buckingham Reservoir Dam | Connecticut | Hartford | 30 | Significant | Fair | 1925 | Recreation |
| Tantaquidgeon | Connecticut | New London | 30 | Low | Satisfactory | - | Recreation |
| Ledyard Reservoir Dam | Connecticut | New London | 30 | Significant | Satisfactory | 1954 | Water Supply |
| Upper Kohanza Lake Dam | Connecticut | Fairfield | 30 | High | Satisfactory | 1866 | Water Supply |
| Staffordville Reservoir Dam | Connecticut | Tolland | 30 | High | Satisfactory | 1850 | Recreation |
| Taftville Reservoir #1 Dam | Connecticut | New London | 30 | Significant | Fair | 1880 | Recreation |
| Baltic Reservoir Dam (West) | Connecticut | New London | 30 | Significant | Satisfactory | 1900 | Water Supply |
| Old Marsh Pond Dam | Connecticut | Litchfield | 30 | High | Satisfactory | 1913 | Water Supply |
| Talcott Flood Control Dam #1 | Connecticut | Hartford | 30 | High | Satisfactory | 1964 | Flood Risk Reduction |
| Taftville Reservoir #2 Dam | Connecticut | New London | 30 | Significant | Poor | 1910 | Water Supply |
| Lake Phipps Dam #1 | Connecticut | New Haven | 29 | High | Satisfactory | 1880 | Recreation |
| Shenipsit Flood Control Site #6 Dam | Connecticut | Tolland | 29 | High | Satisfactory | 1961 | Flood Risk Reduction |
| Chestnut Ridge Dam | Connecticut | Fairfield | 29 | High | Fair | 1910 | Water Supply |
| Ellithorpe Flood Control Site #5 Dam | Connecticut | Tolland | 29 | High | Fair | 1968 | Flood Risk Reduction |
| Bloomfield Flood Control Site #3 Dam | Connecticut | Hartford | 29 | High | Satisfactory | 1962 | Flood Risk Reduction |
| New Britain Reservoir Dike | Connecticut | Hartford | 29 | High | Satisfactory | 1904 | Water Supply |
| Margerie Lake Reservoir South Dam | Connecticut | Fairfield | 29 | High | Satisfactory | 1933 | Water Supply |
| Maltby Lake West Dam #3 | Connecticut | New Haven | 29 | Significant | Satisfactory | 1862 | Water Supply |
| Bradway Reservoir Site #4 Dam | Connecticut | Tolland | 29 | Significant | Satisfactory | 1961 | Flood Risk Reduction |
| Padanaram Reservoir Dam | Connecticut | Fairfield | 29 | High | Satisfactory | 1883 | Water Supply |
| Robertsville Dam | Connecticut | Litchfield | 29 | Significant | Satisfactory | 1887 | Hydroelectric |
| Mackenzie Reservoir Dam | Connecticut | New Haven | 29 | High | Fair | 1944 | Water Supply |
| Laurel Lake Dam | Connecticut | Litchfield | 29 | Significant | Satisfactory | 1965 | Recreation |
| Samp Mortar Reservoir Dam | Connecticut | Fairfield | 29 | High | Fair | 1901 | Recreation |
| Farm Brook Flood Control Site #2a Dam | Connecticut | New Haven | 29 | High | Satisfactory | - | Flood Risk Reduction |
| Willimantic Reservoir Dam | Connecticut | Windham | 29 | High | Satisfactory | 1885 | Water Supply |
| Deep Hollow Reservoir Dam | Connecticut | Middlesex | 28 | Significant | Satisfactory | 1854 | Water Supply |
| Abbott'S Pond Dam | Connecticut | Windham | 28 | Significant | Satisfactory | 1960 | Recreation |
| Portland Reservoir Dam | Connecticut | Middlesex | 28 | High | Satisfactory | 1964 | Water Supply |
| Stafford Reservoir #2 Dam | Connecticut | Tolland | 28 | Significant | Satisfactory | 1966 | Water Supply |
| Seymour Reservoir #4 Dam | Connecticut | New Haven | 28 | Significant | Poor | 1951 | Water Supply |
| Pinewood Lake Dam | Connecticut | Fairfield | 28 | High | Satisfactory | 1890 | Recreation |
| Paper Mill Pond Dam | Connecticut | New London | 28 | Significant | Poor | 1870 | Water Supply |
| Adder Reservoir | Connecticut | Middlesex | 28 | High | Fair | 1934 | Water Supply |
| Lake Forest Dam | Connecticut | Fairfield | 28 | High | Satisfactory | 1899 | Recreation |
| Farm Brook Pond Site 2b | Connecticut | New Haven | 28 | High | Satisfactory | - | Fish and Wildlife Pond |
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.