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 |
|---|---|---|---|---|---|---|---|
| Nepaug East Dike | Connecticut | Hartford | 57 | High | Satisfactory | 1916 | Water Supply |
| Moody Reservoir Dam | Connecticut | New Haven | 56 | High | Satisfactory | 1900 | Water Supply |
| Colebrook River Dam - Saddle Dike | Connecticut | Litchfield | 54 | High | Not Available | 1969 | Flood Risk Reduction |
| Means Brook Reservoir Dam | Connecticut | Fairfield | 54 | High | Satisfactory | 1917 | Water Supply |
| Lake Gaillard East Dike | Connecticut | New Haven | 53 | High | Satisfactory | 1929 | Water Supply |
| American Can Company Dam | Connecticut | Fairfield | 53 | High | Satisfactory | 1970 | Recreation |
| Whitney Flood Control Site #1 Dam | Connecticut | Tolland | 52 | High | Satisfactory | 1962 | Flood Risk Reduction |
| Hancock Brook Dam - Railroad Dike | Connecticut | Litchfield | 51 | High | Not Available | 1966 | Flood Risk Reduction |
| Crystal Lake Dam | Connecticut | Middlesex | 50 | High | Poor | 1850 | Recreation |
| Hall Meadow Brook Flood Control Dike | Connecticut | Litchfield | 50 | High | Satisfactory | - | |
| Wasel Reservoir Dike | Connecticut | Hartford | 50 | High | Satisfactory | 1966 | Water Supply |
| Laurel Reservoir Dam | Connecticut | Fairfield | 50 | High | Satisfactory | 1923 | Water Supply |
| Trap Falls Reservoir Dam | Connecticut | Fairfield | 48 | High | Poor | 1905 | Water Supply |
| Higganum Reservoir Dam | Connecticut | Middlesex | 48 | High | Fair | 1868 | Recreation |
| Shuttle Meadow Reservoir Dam | Connecticut | Hartford | 48 | High | Satisfactory | 1894 | Water Supply |
| East Lake Reservoir Dam | Connecticut | Fairfield | 47 | High | Satisfactory | 1855 | Water Supply |
| Danbury Main Dike | Connecticut | Fairfield | 47 | High | Satisfactory | 1929 | Hydroelectric |
| Beaver Dam Lake Dam | Connecticut | Fairfield | 47 | High | Satisfactory | 1901 | Recreation |
| Killingworth Reservoir Dam | Connecticut | Middlesex | 46 | High | Satisfactory | 1895 | Water Supply |
| Hartford Reservoir #1 Dam | Connecticut | Hartford | 46 | High | Poor | 1868 | Water Supply |
| Tuller Reservoir Dam | Connecticut | Hartford | 46 | Significant | Fair | 1900 | Recreation |
| Hallmere Reservoir Dam | Connecticut | Hartford | 45 | High | Satisfactory | 1897 | Water Supply |
| Morgan Pond Dam | Connecticut | New London | 45 | Significant | Satisfactory | 1966 | Water Supply |
| Middle Lanesville Dike | Connecticut | Litchfield | 45 | High | Satisfactory | 1929 | Hydroelectric |
| Maltby #2 Dam | Connecticut | New Haven | 45 | Significant | Satisfactory | 1862 | Water Supply |
| Howard Reservoir Dam | Connecticut | Hartford | 44 | High | Satisfactory | 1902 | Water Supply |
| Pemberwick Dam | Connecticut | Fairfield | 44 | High | Fair | 1867 | Recreation |
| New Canaan Reservoir Dam | Connecticut | Fairfield | 44 | High | Satisfactory | 1898 | Water Supply |
| Lake Whitney Dam | Connecticut | New Haven | 44 | High | Poor | 1861 | Water Supply |
| Rainbow Reservoir Dam | Connecticut | Hartford | 43 | High | Satisfactory | 1925 | Hydroelectric |
| Norfolk Brook Flood Control Dam #6 | Connecticut | Litchfield | 43 | High | Satisfactory | 1966 | Flood Risk Reduction |
| South Meadows Dike | Connecticut | Hartford | 43 | High | Not Rated | 1939 | Flood Risk Reduction |
| West Lake Reservoir Dam | Connecticut | Fairfield | 42 | High | Satisfactory | 1906 | Water Supply |
| New Britain Reservoir Dam | Connecticut | New Haven | 42 | High | Satisfactory | 1904 | Water Supply |
| Hartford Reservoir #6 East Dam | Connecticut | Hartford | 42 | High | Fair | 1895 | Water Supply |
| Seymour Reservoir #3 Dam | Connecticut | New Haven | 42 | Significant | Fair | 1910 | Water Supply |
| Great Hill Reservior Dam | Connecticut | New Haven | 41 | High | Poor | 1909 | Recreation |
| Hartford Reservoir #3 Dam | Connecticut | Hartford | 41 | High | Fair | 1875 | Water Supply |
| Peat Swamp Reservoir Dam | Connecticut | New Haven | 41 | High | Poor | 1925 | Water Supply |
| Taftville Hydro Dam #4 | Connecticut | New London | 41 | High | Satisfactory | 1867 | Hydroelectric |
| Stony Brook Reservoir Dam | Connecticut | New London | 40 | Significant | Fair | 1912 | Water Supply |
| North Stamford Reservoir Dam | Connecticut | Fairfield | 40 | High | Fair | 1908 | Water Supply |
| New Milford Reservoir #4 Dam | Connecticut | Litchfield | 40 | High | Poor | 1900 | Recreation |
| Broad Brook Reservoir Dam | Connecticut | New Haven | 40 | High | Fair | 1913 | Water Supply |
| Globe Hollow Reservoir Dam | Connecticut | Hartford | 40 | Significant | Fair | 1906 | Water Supply |
| Bristol Reservoir #4 Dam | Connecticut | Litchfield | 40 | Significant | Satisfactory | 1906 | Water Supply |
| Bulls Bridge Forebay | Connecticut | Litchfield | 39 | Significant | Satisfactory | 1903 | Hydroelectric |
| Goss Brook Dam | Connecticut | Windham | 39 | High | Satisfactory | 1963 | Recreation |
| Shepards Pond Dam | Connecticut | Windham | 38 | Significant | Satisfactory | 1890 | Water Supply |
| Ellis Flood Control Site #2 Dam | Connecticut | Tolland | 38 | High | Satisfactory | 1960 | Flood Risk Reduction |
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.