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 |
|---|---|---|---|---|---|---|---|
| Shepards Pond Dam | Connecticut | Windham | 38 | Significant | Satisfactory | 1890 | Water Supply |
| Kenmere Reservoir Dam | Connecticut | Hartford | 38 | High | Satisfactory | 1898 | Water Supply |
| Ellis Flood Control Site #2 Dam | Connecticut | Tolland | 38 | High | Satisfactory | 1960 | Flood Risk Reduction |
| Burnt Hill Flood Control Dam | Connecticut | Hartford | 38 | High | Satisfactory | 1966 | Flood Risk Reduction |
| American Felt Dam | Connecticut | Fairfield | 37 | High | Satisfactory | 1867 | Recreation |
| Rock Lake Dam | Connecticut | Fairfield | 37 | Significant | Satisfactory | 1875 | Water Supply |
| Hockanum Reservoir Dam | Connecticut | Tolland | 37 | High | Fair | 1890 | Recreation |
| Scotland | Connecticut | Windham | 37 | Low | Satisfactory | 1909 | Hydroelectric |
| Chestnut Hill Reservoir Dam | Connecticut | New Haven | 37 | High | Fair | 1919 | Recreation |
| Maltby No. 1 Dam | Connecticut | New Haven | 37 | High | Satisfactory | 1862 | Water Supply |
| Rugg Brook Reservoir Dam | Connecticut | Litchfield | 36 | Significant | Fair | 1890 | Water Supply |
| Popps Mountain Dike | Connecticut | Fairfield | 36 | High | Satisfactory | 1941 | Water Supply |
| Pomeroy Flood Control Site #3 Dam | Connecticut | Tolland | 36 | High | Fair | 1960 | Flood Risk Reduction |
| Crystal Lake Dam | Connecticut | Litchfield | 36 | Significant | Fair | 1878 | Water Supply |
| Rockwood Lake Dam | Connecticut | Fairfield | 36 | High | Satisfactory | 1893 | Water Supply |
| Wood Creek Flood Control Dam Site #9 | Connecticut | Litchfield | 36 | High | Satisfactory | 1971 | Flood Risk Reduction |
| South Norwalk Reservoir Dam | Connecticut | Fairfield | 36 | High | Satisfactory | 1899 | Water Supply |
| Putnam Reservoir Dam | Connecticut | Fairfield | 35 | High | Satisfactory | 1910 | Water Supply |
| Asylum Reservoir #2 Dam | Connecticut | Middlesex | 35 | Significant | Fair | - | Water Supply |
| Middle Reservoir Dam | Connecticut | New Haven | 35 | Significant | Satisfactory | 1890 | Water Supply |
| Congdon Pond Dam | Connecticut | New London | 35 | Significant | Poor | 1900 | Hydroelectric |
| Sandy Hook | Connecticut | Fairfield | 35 | Significant | Satisfactory | 1905 | Hydroelectric |
| Stone Hill Reservoir Dam | Connecticut | New London | 35 | Significant | Satisfactory | 1894 | Water Supply |
| Hancock Brook Dam | Connecticut | Litchfield | 35 | High | Not Available | 1966 | Flood Risk Reduction |
| East Mountain Reservoir Dam | Connecticut | New Haven | 35 | High | Satisfactory | 1880 | Recreation |
| Mystic Reservoir Dam | Connecticut | New London | 34 | High | Satisfactory | 1880 | Water Supply |
| Huntington Pond Dike 2 | Connecticut | Fairfield | 34 | Significant | - | - | |
| Stillwater Pond Dam | Connecticut | Litchfield | 34 | High | Satisfactory | - | Recreation |
| Lake Beseck Dam | Connecticut | Middlesex | 34 | Significant | Satisfactory | 1846 | Recreation |
| Woodridge Lake Dam | Connecticut | Litchfield | 34 | High | Satisfactory | 1970 | Recreation |
| Bronson E. Lockwood Dam | Connecticut | Litchfield | 34 | High | Satisfactory | 1958 | Water Supply |
| Lake Saltonstall Dam | Connecticut | New Haven | 34 | High | Satisfactory | 1882 | Water Supply |
| Johnsons Pond Dam | Connecticut | Litchfield | 34 | Significant | Not Rated | - | Recreation |
| Union Pond Dam | Connecticut | Hartford | 33 | High | Fair | 1901 | Recreation |
| Bristol Reservoir #2 Dam | Connecticut | Litchfield | 33 | Significant | Satisfactory | 1889 | Water Supply |
| Merimere Reservoir Dam | Connecticut | Hartford | 33 | High | Satisfactory | 1870 | Water Supply |
| Bunnells Pond Dam | Connecticut | Fairfield | 33 | High | Fair | 1906 | Recreation |
| Hop Brook Dam - Saddle Dike | Connecticut | New Haven | 33 | High | Not Available | 1968 | Flood Risk Reduction |
| Bushy Hill Pond Dam | Connecticut | Middlesex | 33 | High | Satisfactory | 1871 | Water Supply |
| Collins Company Lower Dam | Connecticut | Hartford | 33 | Significant | Satisfactory | - | Recreation |
| Canoe Brook Lake Dam | Connecticut | Fairfield | 33 | High | Satisfactory | 1870 | Recreation |
| Tunnel Dam Hydro Station | Connecticut | New London | 32 | Significant | Satisfactory | 1906 | Hydroelectric |
| Trading Cove Pond Dam | Connecticut | New London | 32 | Significant | Fair | 1900 | Recreation |
| Green Falls Reservoir Dam | Connecticut | New London | 32 | Significant | Satisfactory | 1870 | Recreation |
| Hartford Reservoir #2 Dam | Connecticut | Hartford | 32 | High | Satisfactory | 1869 | Water Supply |
| Porter Reservoir Dam | Connecticut | Hartford | 32 | Significant | Satisfactory | 1902 | Water Supply |
| Scoville Reservoir Dam | Connecticut | New Haven | 32 | High | Satisfactory | 1917 | Recreation |
| Wigwam Reservoir South Dam | Connecticut | Litchfield | 32 | Significant | Satisfactory | 1893 | Water Supply |
| Lake Wintergreen Dam | Connecticut | New Haven | 31 | High | Satisfactory | 1863 | Water Supply |
| South Flood Control Dam | Connecticut | Hartford | 31 | High | Satisfactory | 1964 | 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.