Browse Dams
1,289 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,289 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 |
|---|---|---|---|---|---|---|---|
| Stanley Quarter Park Pond Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | — | Recreation |
| Lake Mark Dam | Connecticut | Tolland | 21 | Significant | Fair | 1957 | Recreation |
| South Pond Dam | Connecticut | Litchfield | 21 | High | Satisfactory | 1850 | Recreation |
| Riverside Pond Dam | Connecticut | Tolland | 21 | High | Poor | 1880 | Water Supply |
| Wyre - Wynd | Connecticut | New London | 21 | Low | Satisfactory | 1913 | Hydroelectric |
| New Milford Reservoir #3 Dam | Connecticut | Litchfield | 21 | Significant | Not Rated | 1900 | Recreation |
| Potash Pond Dam | Connecticut | Windham | 21 | Significant | Fair | 1880 | Recreation |
| Kinneytown | Connecticut | New Haven | 21 | Significant | Poor | 1913 | Hydroelectric |
| Spectacle Swamp Flood Control Dam | Connecticut | Fairfield | 21 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Broad Brook Mill Pond Dam | Connecticut | Hartford | 21 | Significant | Not Rated | 1880 | Recreation |
| Goodwin Pond Dam | Connecticut | Litchfield | 21 | Significant | Poor | — | Recreation |
| Bogue Brook Reservoir Dam | Connecticut | New London | 21 | Significant | Satisfactory | 1920 | Water Supply |
| Ragged Hill Pond Dam | Connecticut | Windham | 20 | Significant | Fair | — | Recreation |
| Middle Bolton Lake Dam | Connecticut | Tolland | 20 | Significant | Satisfactory | 1940 | Recreation |
| Bugbee Flood Control Dam | Connecticut | Hartford | 20 | High | Satisfactory | 1969 | Flood Risk Reduction |
| Twin Lakes Dam | Connecticut | Litchfield | 20 | Significant | Not Rated | 1900 | Recreation |
| Bristol Fish & Game Club Dam | Connecticut | New Haven | 20 | Significant | Satisfactory | 1961 | Recreation |
| North Pond Reservoir Dam | Connecticut | Litchfield | 20 | High | Satisfactory | 1840 | Water Supply |
| Happy Acres Dam | Connecticut | Windham | 20 | Significant | Satisfactory | 1973 | Recreation |
| Whites Pond Dam | Connecticut | Hartford | 20 | Significant | Satisfactory | 1926 | Recreation |
| Rhode Island Pond Dam | Connecticut | Tolland | 20 | Significant | Satisfactory | 1880 | Recreation |
| Mercers Pond Dam | Connecticut | Fairfield | 20 | High | Satisfactory | 1870 | Recreation |
| Packers Pond Dam | Connecticut | Windham | 20 | High | Satisfactory | 1880 | Recreation |
| Bell Shop Dam | Connecticut | Middlesex | 20 | Significant | Satisfactory | — | Recreation |
| Bantam Hydro Dam | Connecticut | Litchfield | 20 | Significant | Satisfactory | 1945 | Hydroelectric |
| Ravenswood Dam | Connecticut | New Haven | 20 | Significant | Satisfactory | — | Fish and Wildlife Pond |
| Upper Pond Dam | Connecticut | Litchfield | 20 | Significant | Fair | 1880 | Recreation |
| Freshwater Pond Dam | Connecticut | Hartford | 20 | High | Satisfactory | 1900 | Recreation |
| West Side Flood Control Dam #5 | Connecticut | Litchfield | 20 | High | Satisfactory | 1970 | Flood Risk Reduction |
| Schwartz Pond Dam | Connecticut | Litchfield | 20 | Significant | Fair | 1964 | Recreation |
| Avery Flood Control Site #1 Dam | Connecticut | Hartford | 20 | High | Satisfactory | 1992 | Flood Risk Reduction |
| Wilson Brook Detention Dam | Connecticut | Hartford | 20 | Significant | Satisfactory | 1981 | Flood Risk Reduction |
| Farringtons Pond Dam | Connecticut | Fairfield | 20 | Significant | Satisfactory | 1900 | Recreation |
| Thurston Pond Dam | Connecticut | New Haven | 20 | High | Satisfactory | 1890 | Recreation |
| Witches Wood Lake Dam | Connecticut | Windham | 20 | Significant | Satisfactory | 1963 | Recreation |
| Ivy Mountain Dam | Connecticut | Litchfield | 20 | Low | Fair | — | Recreation |
| Bulls Bridge Mountainside Spillway | Connecticut | Litchfield | 20 | Significant | Satisfactory | 1902 | Hydroelectric |
| Fitchville Pond Dam | Connecticut | New London | 20 | High | Poor | 1871 | Recreation |
| Terryville Reservoir #3 Dam | Connecticut | Litchfield | 20 | Significant | Fair | 1920 | Water Supply |
| Blast & Cast Pond Dam | Connecticut | Hartford | 20 | Significant | Satisfactory | 1953 | Recreation |
| Park Pond Dam | Connecticut | Litchfield | 20 | High | Satisfactory | — | Recreation |
| Tower Hill Lake Dam | Connecticut | Middlesex | 20 | Low | Not Rated | 1920 | Recreation |
| Great Pond Dam | Connecticut | Fairfield | 20 | High | Fair | — | Other |
| Miller Pond Dam | Connecticut | New London | 20 | Significant | Satisfactory | 1873 | Recreation |
| Litchfield Reservoir Dam | Connecticut | Litchfield | 20 | Significant | Satisfactory | — | Water Supply |
| Zeiner Pond | Connecticut | Litchfield | 20 | Significant | Satisfactory | 1911 | Recreation |
| Mirror Lake Dam | Connecticut | New Haven | 20 | Significant | Satisfactory | 1949 | Recreation |
| Big Pond Dam | Connecticut | Windham | 20 | High | Satisfactory | 1870 | Recreation |
| South Norwalk Reservoir Dike | Connecticut | Fairfield | 20 | High | Satisfactory | 1899 | Water Supply |
| Plymouth Reservoir Dam | Connecticut | Litchfield | 20 | High | Satisfactory | 1881 | 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.