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 |
|---|---|---|---|---|---|---|---|
| Cargill Falls Dam | Connecticut | Windham | 24 | Significant | Satisfactory | 1925 | Hydroelectric |
| Drobney Dam | Connecticut | Tolland | 24 | Significant | Satisfactory | 1970 | Recreation |
| North Meadows Dike | Connecticut | Hartford | 24 | High | Not Rated | 1939 | Flood Risk Reduction |
| Dooley Pond Dam | Connecticut | Middlesex | 24 | High | Fair | 1870 | Recreation |
| Grupes Reservoir Dam | Connecticut | Fairfield | 24 | High | Poor | 1871 | Water Supply |
| Hartford Reservoir #5 Dam | Connecticut | Hartford | 24 | High | Fair | 1884 | Water Supply |
| Candee Reservoir Dam | Connecticut | New Haven | 24 | Significant | Satisfactory | - | Water Supply |
| Factory Pond Dam | Connecticut | Fairfield | 24 | High | Poor | 1874 | Recreation |
| Bashan Lake Dam | Connecticut | Middlesex | 24 | Significant | Satisfactory | 1939 | Recreation |
| Lake Winnemaug Dam | Connecticut | Litchfield | 24 | High | Satisfactory | 1920 | Recreation |
| Quassapaug Lake Dam | Connecticut | New Haven | 24 | Significant | Fair | 1900 | Recreation |
| Irving Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1945 | Recreation |
| Winchester Lake Dam | Connecticut | Litchfield | 23 | Significant | Satisfactory | - | Recreation |
| Messerschmidt Pond Dam | Connecticut | Middlesex | 23 | High | Fair | 1890 | Recreation |
| Wintonbury Flood Control Site #1 Dam | Connecticut | Hartford | 23 | High | Satisfactory | 1963 | Flood Risk Reduction |
| Pattaconk Reservoir Dam | Connecticut | Middlesex | 23 | High | Fair | 1932 | Recreation |
| Ashford Lake Dam | Connecticut | Windham | 23 | Significant | Satisfactory | 1949 | Recreation |
| Hart Brook Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1908 | Water Supply |
| Lake Konomoc Dam | Connecticut | New London | 23 | High | Fair | 1872 | Water Supply |
| Upper Unionville Reservoir Dam | Connecticut | Hartford | 23 | Significant | Fair | 1909 | Recreation |
| Pin Shop Pond Dam | Connecticut | Litchfield | 23 | Significant | Fair | 1870 | Other |
| Brush Reservoir Dam | Connecticut | Fairfield | 23 | Low | Poor | 1925 | Water Supply |
| Tadma Pond Dam | Connecticut | New London | 22 | Significant | Poor | 1966 | Recreation |
| Warren Pond Dam | Connecticut | Tolland | 22 | High | Poor | 1852 | Recreation |
| Wood Creek Pond Dam | Connecticut | Litchfield | 22 | Significant | Satisfactory | 1900 | Recreation |
| Barnes Reservoir Dam | Connecticut | New London | 22 | Significant | Poor | 1902 | Water Supply |
| Gager's Pond Dam | Connecticut | New London | 22 | Significant | Poor | 1876 | Recreation |
| Lake Mauweehoo Dam | Connecticut | Fairfield | 22 | Significant | Satisfactory | 1906 | Recreation |
| Drop Pond Dam | Connecticut | Middlesex | 22 | Significant | Satisfactory | - | Recreation |
| Lakeville Reservoir #2 Dam | Connecticut | Litchfield | 22 | Significant | Fair | - | Water Supply |
| Dodson Pond Dam | Connecticut | New London | 22 | Significant | Fair | 1962 | Recreation |
| Jennings Pond Dam | Connecticut | Middlesex | 22 | High | Satisfactory | 1870 | Recreation |
| Halls Pond Dam | Connecticut | Tolland | 22 | Significant | Fair | 1920 | Recreation |
| Conrad Pond Dam | Connecticut | New Haven | 22 | High | Satisfactory | - | Recreation |
| Pine Meadows Park Pond Pond Dam | Connecticut | New London | 22 | Low | Not Rated | 1959 | Recreation |
| Somersville Pond Dam | Connecticut | Tolland | 22 | Significant | Satisfactory | 1890 | Recreation |
| Old Brass Mill Pond Dam | Connecticut | Litchfield | 22 | Significant | Fair | - | Recreation |
| Waterbury Reservoir No. 2 Dam | Connecticut | New Haven | 22 | High | Satisfactory | 1880 | Recreation |
| Nash Pond Dam | Connecticut | Fairfield | 22 | High | Satisfactory | 1879 | Recreation |
| Butternut Hollow Pond Dam | Connecticut | Middlesex | 21 | Significant | Satisfactory | 1935 | Recreation |
| Goodwin Pond Dam | Connecticut | Litchfield | 21 | Significant | Poor | - | Recreation |
| Stanley Quarter Park Pond Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | - | Recreation |
| Wolcott Reservoir Conveyor Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | - | Water Supply |
| Bigelow Pond Dam | Connecticut | Tolland | 21 | Significant | Satisfactory | 1941 | Recreation |
| Lake Mark Dam | Connecticut | Tolland | 21 | Significant | Fair | 1957 | Recreation |
| South Pond Dam | Connecticut | Litchfield | 21 | High | Satisfactory | 1850 | Recreation |
| Arrigoni Pond Dam | Connecticut | Middlesex | 21 | Significant | Satisfactory | 1945 | Recreation |
| Ensign Bickford Dam | Connecticut | Hartford | 21 | Significant | Satisfactory | 1900 | Recreation |
| Kinneytown | Connecticut | New Haven | 21 | Significant | Poor | 1913 | Hydroelectric |
| Zoar Pond Dam | Connecticut | Middlesex | 21 | Significant | Poor | - | 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.