Flood Control Dams in Connecticut
Connecticut has 50 flood control dams, of which 42 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Mad River Flood Control Dam | Litchfield | 178 | High | Satisfactory | 1963 |
| 2 | Thomaston Dam | Litchfield | 137 | High | Not Available | 1960 |
| 3 | Black Rock Dam | Litchfield | 130 | High | Not Available | 1971 |
| 4 | Northfield Brook Dam | Litchfield | 111 | High | Not Available | 1965 |
| 5 | East Branch Flood Control Dam | Litchfield | 92 | High | Satisfactory | |
| 6 | Whiting River Flood Control Dam | Litchfield | 80 | High | Satisfactory | 1968 |
| 7 | Mansfield Hollow Dam - Dike C | Tolland | 78 | High | Not Available | 1952 |
| 8 | Hall Meadow Brook Flood Control Dam | Litchfield | 75 | High | Satisfactory | 1962 |
| 9 | Sucker Brook Flood Control Dam | Litchfield | 68 | High | Satisfactory | 1970 |
| 10 | Colebrook River Dam - Saddle Dike | Litchfield | 54 | High | Not Available | 1969 |
| 11 | Whitney Flood Control Site #1 Dam | Tolland | 52 | High | Satisfactory | 1962 |
| 12 | Hancock Brook Dam - Railroad Dike | Litchfield | 51 | High | Not Available | 1966 |
| 13 | South Meadows Dike | Hartford | 43 | High | Not Rated | 1939 |
| 14 | Norfolk Brook Flood Control Dam #6 | Litchfield | 43 | High | Satisfactory | 1966 |
| 15 | Burnt Hill Flood Control Dam | Hartford | 38 | High | Satisfactory | 1966 |
| 16 | Ellis Flood Control Site #2 Dam | Tolland | 38 | High | Satisfactory | 1960 |
| 17 | Pomeroy Flood Control Site #3 Dam | Tolland | 36 | High | Fair | 1960 |
| 18 | Hop Brook Dam - Saddle Dike | New Haven | 33 | High | Not Available | 1968 |
| 19 | Talcott Flood Control Dam #1 | Hartford | 30 | High | Satisfactory | 1964 |
| 20 | Bloomfield Flood Control Site #3 Dam | Hartford | 29 | High | Satisfactory | 1962 |
| 21 | Farm Brook Flood Control Site #2a Dam | New Haven | 29 | High | Satisfactory | |
| 22 | Bradway Reservoir Site #4 Dam | Tolland | 29 | Significant | Satisfactory | 1961 |
| 23 | Ellithorpe Flood Control Site #5 Dam | Tolland | 29 | High | Fair | 1968 |
| 24 | Shenipsit Flood Control Site #6 Dam | Tolland | 29 | High | Satisfactory | 1961 |
| 25 | Avery Flood Control Site #2 Dam | Hartford | 25 | High | Satisfactory | 1993 |
| 26 | Blue Hills Flood Control Site #2 Dam | Hartford | 25 | High | Fair | 1964 |
| 27 | Reserve Detention Basin L Dam | Fairfield | 24 | Significant | Not Rated | 2009 |
| 28 | North Meadows Dike | Hartford | 24 | High | Not Rated | 1939 |
| 29 | Wintonbury Flood Control Site #1 Dam | Hartford | 23 | High | Satisfactory | 1963 |
| 30 | Spectacle Swamp Flood Control Dam | Fairfield | 21 | High | Satisfactory | 1973 |
| 31 | South Flood Control Dike | Hartford | 20 | High | Satisfactory | |
| 32 | Wilson Brook Detention Dam | Hartford | 20 | Significant | Satisfactory | 1981 |
| 33 | Avery Flood Control Site #1 Dam | Hartford | 20 | High | Satisfactory | 1992 |
| 34 | Cold Spring Flood Control Site #9 Dam | Hartford | 20 | High | Satisfactory | |
| 35 | Bugbee Flood Control Dam | Hartford | 20 | High | Satisfactory | 1969 |
| 36 | Wood Creek Flood Control Dike Site #9 | Litchfield | 20 | High | Satisfactory | 1971 |
| 37 | West Side Flood Control Dam #5 | Litchfield | 20 | High | Satisfactory | 1970 |
| 38 | Talcott Flood Control Dam #2 | Hartford | 19 | High | Satisfactory | 1964 |
| 39 | West Thompson Dam - Reardon Road Dike | Windham | 19 | High | Not Available | 1965 |
| 40 | Bloomfield Flood Control Site #3a Dam | Hartford | 16 | Low | Satisfactory | 1969 |
| 41 | Crossing At Lisbon Detention Dam | New London | 16 | Significant | Satisfactory | 2008 |
| 42 | Skating Pond Dam | New London | 16 | High | Satisfactory | 1968 |
| 43 | Kettletown Detention Dam | New Haven | 15 | Significant | Satisfactory | |
| 44 | Great Swamp Flood Control Dam | Fairfield | 12 | High | Satisfactory | 1979 |
| 45 | Fedex Detention Basin Dam | Tolland | 12 | Significant | Satisfactory | |
| 46 | Farm Brook Flood Control Site #1 Dam | New Haven | 11 | High | Satisfactory | 1974 |
| 47 | Folly Brook Dike | Hartford | 10 | High | Not Rated | |
| 48 | Blue Hills Flood Control Site #2 Dike | Hartford | 8 | High | Fair | |
| 49 | Pierce's Detention Dam | New Haven | 8 | Significant | Fair | |
| 50 | Meadow Ridge Detention Dam | Fairfield | 6 | High | Poor |