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 |
|---|---|---|---|---|---|---|---|
| Candee Reservoir Dam | Connecticut | New Haven | 24 | Significant | Satisfactory | - | Water Supply |
| Reserve Detention Basin L Dam | Connecticut | Fairfield | 24 | Significant | Not Rated | 2009 | Flood Risk Reduction |
| Quassapaug Lake Dam | Connecticut | New Haven | 24 | Significant | Fair | 1900 | Recreation |
| Popes Pond Dam | Connecticut | Fairfield | 24 | High | Satisfactory | 1965 | Water Supply |
| West River Pond Dam | Connecticut | New Haven | 24 | Significant | Fair | - | Recreation |
| Echo Lake Dam | Connecticut | Litchfield | 24 | High | Satisfactory | 1958 | Recreation |
| Drobney Dam | Connecticut | Tolland | 24 | Significant | Satisfactory | 1970 | Recreation |
| North Meadows Dike | Connecticut | Hartford | 24 | High | Not Rated | 1939 | Flood Risk Reduction |
| Bulls Bridge | Connecticut | Litchfield | 24 | Low | Satisfactory | 1902 | Hydroelectric |
| Dividend Pond-Upper Dam | Connecticut | Hartford | 24 | Significant | Fair | 1870 | Recreation |
| Isinglass Reservoir Dam | Connecticut | Fairfield | 24 | Significant | Fair | - | Water Supply |
| Lake Konomoc Dam | Connecticut | New London | 23 | High | Fair | 1872 | Water Supply |
| Messerschmidt Pond Dam | Connecticut | Middlesex | 23 | High | Fair | 1890 | Recreation |
| Ashford Lake Dam | Connecticut | Windham | 23 | Significant | Satisfactory | 1949 | Recreation |
| Wintonbury Flood Control Site #1 Dam | Connecticut | Hartford | 23 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Hart Brook Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1908 | Water Supply |
| Pattaconk Reservoir Dam | Connecticut | Middlesex | 23 | High | Fair | 1932 | Recreation |
| Pin Shop Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1870 | Other |
| Irving Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1945 | Recreation |
| Winchester Lake Dam | Connecticut | Litchfield | 23 | Significant | Satisfactory | - | Recreation |
| Upper Unionville Reservoir Dam | Connecticut | Hartford | 23 | Significant | Fair | 1909 | Recreation |
| Brush Reservoir Dam | Connecticut | Fairfield | 23 | Low | Poor | 1925 | Water Supply |
| Gager'S Pond Dam | Connecticut | New London | 22 | Significant | Poor | 1876 | Recreation |
| Barnes Reservoir Dam | Connecticut | New London | 22 | Significant | Poor | 1902 | Water Supply |
| Jennings Pond Dam | Connecticut | Middlesex | 22 | High | Satisfactory | 1870 | Recreation |
| Lakeville Reservoir #2 Dam | Connecticut | Litchfield | 22 | Significant | Fair | - | Water Supply |
| Nash Pond Dam | Connecticut | Fairfield | 22 | High | Satisfactory | 1879 | Recreation |
| Conrad Pond Dam | Connecticut | New Haven | 22 | High | Satisfactory | - | Recreation |
| Wood Creek Pond Dam | Connecticut | Litchfield | 22 | Significant | Satisfactory | 1900 | Recreation |
| Old Brass Mill Pond Dam | Connecticut | Litchfield | 22 | Significant | Fair | - | Recreation |
| Tadma Pond Dam | Connecticut | New London | 22 | Significant | Poor | 1966 | Recreation |
| Pine Meadows Park Pond Pond Dam | Connecticut | New London | 22 | Low | Not Rated | 1959 | Recreation |
| Halls Pond Dam | Connecticut | Tolland | 22 | Significant | Fair | 1920 | Recreation |
| Waterbury Reservoir No. 2 Dam | Connecticut | New Haven | 22 | High | Satisfactory | 1880 | Recreation |
| Lake Mauweehoo Dam | Connecticut | Fairfield | 22 | Significant | Satisfactory | 1906 | Recreation |
| Drop Pond Dam | Connecticut | Middlesex | 22 | Significant | Satisfactory | - | Recreation |
| Somersville Pond Dam | Connecticut | Tolland | 22 | Significant | Satisfactory | 1890 | Recreation |
| Warren Pond Dam | Connecticut | Tolland | 22 | High | Poor | 1852 | Recreation |
| Dodson Pond Dam | Connecticut | New London | 22 | Significant | Fair | 1962 | Recreation |
| Upper Detention Basin Dam | Connecticut | New Haven | 21 | Significant | Satisfactory | - | |
| Scovill Reservoir Dam | Connecticut | Middlesex | 21 | High | Satisfactory | 1860 | Recreation |
| Kinneytown | Connecticut | New Haven | 21 | Significant | Poor | 1913 | Hydroelectric |
| Ensign Bickford Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | 1900 | Recreation |
| Wyre - Wynd | Connecticut | New London | 21 | Low | Satisfactory | 1913 | Hydroelectric |
| Wolcott Reservoir Conveyor Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | - | Water Supply |
| Bigelow Pond Dam | Connecticut | Tolland | 21 | Significant | Satisfactory | 1941 | Recreation |
| Stanley Quarter Park Pond Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | - | Recreation |
| Spectacle Swamp Flood Control Dam | Connecticut | Fairfield | 21 | High | Satisfactory | 1973 | Flood Risk Reduction |
| South Pond Dam | Connecticut | Litchfield | 21 | High | Satisfactory | 1850 | Recreation |
| Arrigoni Pond Dam | Connecticut | Middlesex | 21 | Significant | Satisfactory | 1945 | 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.