Dams in Fairfield County, Connecticut
209Total Dams
44High Hazard
162Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Easton Reservoir Dam | High | Fair | 123 | Water Supply | 1926 |
| John D. Milne Lake Dam | High | Fair | 105 | Water Supply | 1947 |
| Stevenson | High | Satisfactory | 103 | Hydroelectric | 1919 |
| Hemlock Reservoir Dam | High | Fair | 75 | Water Supply | 1914 |
| Samuel Bargh Reservoir Dam | High | Satisfactory | 75 | Water Supply | 1955 |
| Means Brook Reservoir Dam | High | Satisfactory | 54 | Water Supply | 1917 |
| American Can Company Dam | High | Satisfactory | 53 | Recreation | 1970 |
| Laurel Reservoir Dam | High | Satisfactory | 50 | Water Supply | 1923 |
| Trap Falls Reservoir Dam | High | Fair | 48 | Water Supply | 1905 |
| East Lake Reservoir Dam | High | Satisfactory | 47 | Water Supply | 1855 |
| Beaver Dam Lake Dam | High | Satisfactory | 47 | Recreation | 1901 |
| Pemberwick Dam | High | Fair | 44 | Recreation | 1867 |
| New Canaan Reservoir Dam | High | Satisfactory | 44 | Water Supply | 1898 |
| West Lake Reservoir Dam | High | Satisfactory | 42 | Water Supply | 1906 |
| North Stamford Reservoir Dam | High | Fair | 40 | Water Supply | 1908 |
| American Felt Dam | High | Satisfactory | 37 | Recreation | 1867 |
| Popps Mountain Dike | High | Satisfactory | 36 | Water Supply | 1941 |
| Putnam Reservoir Dam | High | Satisfactory | 35 | Water Supply | 1910 |
| Bunnells Pond Dam | High | Fair | 33 | Recreation | 1906 |
| Canoe Brook Lake Dam | High | Satisfactory | 33 | Recreation | 1870 |
| Mianus Filter Plant Dam | High | Fair | 31 | Water Supply | 1875 |
| Upper Kohanza Lake Dam | High | Satisfactory | 30 | Water Supply | 1866 |
| Chestnut Ridge Dam | High | Fair | 29 | Water Supply | 1910 |
| Padanaram Reservoir Dam | High | Satisfactory | 29 | Water Supply | 1883 |
| Samp Mortar Reservoir Dam | High | Satisfactory | 29 | Recreation | 1901 |
| Lake Forest Dam | High | Satisfactory | 28 | Recreation | 1899 |
| Pinewood Lake Dam | High | Satisfactory | 28 | Recreation | 1890 |
| Lower Kohanza Lake Dam | High | Satisfactory | 25 | Water Supply | 1860 |
| Grupes Reservoir Dam | High | Poor | 24 | Water Supply | 1871 |
| Factory Pond Dam | High | Poor | 24 | Recreation | 1874 |
| Popes Pond Dam | High | Satisfactory | 24 | Water Supply | 1965 |
| Nash Pond Dam | High | Satisfactory | 22 | Recreation | 1879 |
| Spectacle Swamp Flood Control Dam | High | Satisfactory | 21 | Flood Risk Reduction | 1973 |
| Great Pond Dam | High | Fair | 20 | Other | |
| Mercers Pond Dam | High | Satisfactory | 20 | Recreation | 1870 |
| South Norwalk Reservoir Dike | High | Satisfactory | 20 | Water Supply | 1899 |
| Island Brook Lagoon Dam | High | Fair | 19 | Recreation | |
| Eureka Lake Dam | High | Fair | 18 | Water Supply | 1878 |
| Margerie Lake Reservoir North Dike | High | Satisfactory | 17 | Water Supply | |
| Shelton Reservoir #2 Dam | High | Fair | 16 | Recreation | 1900 |
| Rockwood Lake North Street Dike | High | Satisfactory | 12 | Water Supply | 1893 |
| Great Swamp Flood Control Dam | High | Satisfactory | 12 | Flood Risk Reduction | 1979 |
| Meadow Ridge Fire Irrigation Pond Dam | High | Fair | 8 | Fire Protection, Stock, Or Small Fish Pond | |
| Meadow Ridge Detention Dam | High | Poor | 6 | Flood Risk Reduction | |
| Rock Lake Dam | Significant | Satisfactory | 37 | Water Supply | 1875 |
| Sandy Hook | Significant | Satisfactory | 35 | Hydroelectric | 1905 |
| Walnut Hill Pond Dam | Significant | Fair | 27 | Recreation | 1962 |
| Shadow Lake Dam | Significant | Fair | 25 | Recreation | 1937 |
| Ville Pond Dam | Significant | Satisfactory | 25 | Recreation | |
| Reserve Detention Basin L Dam | Significant | Not Rated | 24 | Flood Risk Reduction | 2009 |
| Isinglass Reservoir Dam | Significant | Fair | 24 | Water Supply | |
| Lake Mauweehoo Dam | Significant | Satisfactory | 22 | Recreation | 1906 |
| Cobbs Mill Pond Dam | Significant | Fair | 21 | Recreation | 1892 |
| Wilcox Pond Dam | Significant | Fair | 20 | Recreation | |
| Mianus River Dam | Significant | Satisfactory | 20 | Recreation | 1920 |
| Lake Mead Dam | Significant | Not Rated | 20 | Fish and Wildlife Pond | |
| Farringtons Pond Dam | Significant | Satisfactory | 20 | Recreation | 1900 |
| Shelton Reservoir #3 Dam | Significant | Fair | 20 | Water Supply | 1915 |
| Far Mill River Dam | Significant | Satisfactory | 19 | Recreation | |
| Rose Hill Ave Pond Dam | Significant | Fair | 19 | Other | |
| Silvermine Dam | Significant | Fair | 18 | Recreation | |
| Mathers Pond Dam | Significant | Satisfactory | 18 | Recreation | 1921 |
| East Pond Dam | Significant | Poor | 18 | Recreation | |
| Lower Rocky Glen Dam | Significant | Not Rated | 18 | Recreation | 1870 |
| Pound Pond Dam | Significant | Fair | 18 | Other | |
| Bendels Pond Dam | Significant | Satisfactory | 18 | Recreation | |
| Lee's Pond Dam | Significant | Poor | 18 | Recreation | 1903 |
| Lake Naraneka Dam | Significant | Satisfactory | 18 | Recreation | 1937 |
| Millard Pond Dam | Significant | Satisfactory | 17 | Recreation | |
| Union Pond Dam | Significant | Poor | 16 | Water Supply | |
| F W Perry Dam | Significant | Not Rated | 16 | Recreation | 1972 |
| Armstrong Park Pond Dam | Significant | Satisfactory | 16 | Recreation | |
| Babcock Pond Dam | Significant | Satisfactory | 15 | Recreation | |
| Wooley Pond Dam | Significant | Satisfactory | 15 | Recreation | 1800 |
| Perry Pond Dam | Significant | Fair | 15 | Recreation | |
| Mountain Pond Dam | Significant | Satisfactory | 15 | Water Supply | 1901 |
| Curtis Pond Dam | Significant | Satisfactory | 15 | Irrigation | 1856 |
| Success Lake Dam | Significant | Not Rated | 15 | Fish and Wildlife Pond | 1875 |
| Topping Road Dam | Significant | Poor | 15 | Recreation | 1920 |
| Indian Spring Pond Dam | Significant | Not Rated | 15 | Recreation | 1925 |
| Angulus Pond Dam | Significant | Not Rated | 14 | Recreation | |
| Above Pond Dam | Significant | Satisfactory | 14 | Recreation | |
| Timber Lake Dam | Significant | Fair | 14 | Recreation | 1957 |
| Lake Windwing Dam | Significant | Fair | 14 | Recreation | 1900 |
| Forest Lake Dam | Significant | Not Rated | 14 | Recreation | 1930 |
| Milbrook Upper Lake Dam | Significant | Poor | 14 | Recreation | |
| Freemans Pond Dam | Significant | Satisfactory | 14 | Recreation | |
| Boggs Pond Dam | Significant | Satisfactory | 14 | Recreation | 1900 |
| Browns Brook Dam | Significant | Fair | 14 | Recreation | 1836 |
| Jelliff Mill Pond Dam | Significant | Satisfactory | 14 | Recreation | |
| Millers Pond Dam #1 | Significant | Fair | 13 | Fish and Wildlife Pond | |
| Murphy Pond Dam | Significant | Poor | 13 | Recreation | 1920 |
| Brewster Pond Dam | Significant | Satisfactory | 13 | Recreation | |
| King Lake Dam | Significant | Not Rated | 13 | Recreation | |
| Highstead Pond Dam | Significant | Fair | 13 | Other | 1985 |
| Carringtons Pond Dam | Significant | Satisfactory | 13 | Recreation | |
| Hasen Pond Dam | Significant | Not Rated | 12 | Recreation | |
| Eutro Pond Dam | Significant | Satisfactory | 12 | Other | |
| Pepper Lake Dam | Significant | Not Rated | 12 | Recreation | |
| Schatten Pond Dam | Significant | Not Rated | 12 | Recreation | |
| Carp Road Dam | Significant | Fair | 12 | Recreation | |
| Spahn Pond Dam | Significant | Satisfactory | 12 | Recreation | 1925 |
| Tarrywile Lake Dam | Significant | Satisfactory | 12 | Recreation | 1900 |
| Small Pond Dam | Significant | Not Rated | 12 | Recreation | |
| Davis Pond Dam | Significant | Satisfactory | 12 | Recreation | |
| Thrushwood Lake Dam | Significant | Fair | 12 | Recreation | |
| Aspetuck River Dam | Significant | Satisfactory | 12 | Recreation | |
| Beard Mill Pond Dam | Significant | Not Rated | 12 | Recreation | |
| Lees Pond #1 Dam | Significant | Not Rated | 12 | Recreation | |
| Serenity Pond Dam | Significant | Fair | 12 | Recreation | 1928 |
| Hattertown Pond Dam | Significant | Satisfactory | 11 | Recreation | 1840 |
| Cross Pond Dam | Significant | Not Rated | 11 | Recreation | |
| Seyer Dam | Significant | Fair | 11 | Recreation | 1900 |
| Godfrey Pond Dam | Significant | Fair | 11 | Recreation | 1783 |
| Stillman Pond Dam | Significant | Satisfactory | 11 | Other | 1915 |
| Huntington Pond Dam | Significant | Satisfactory | 11 | Recreation | 1880 |
| Aspetuck Reservoir Dam | Significant | Satisfactory | 11 | Water Supply | 1913 |
| Parks Pond Dam #2 | Significant | Satisfactory | 11 | Recreation | |
| Chasmars Pond Dam | Significant | Satisfactory | 11 | Recreation | 1900 |
| Saddle Pond Dam | Significant | Satisfactory | 11 | Recreation | 1920 |
| Wendy Road Pond Dam | Significant | Not Rated | 11 | Recreation | |
| Warner Pond Dam | Significant | Satisfactory | 10 | Recreation | |
| Steichens Pond Dam | Significant | Not Rated | 10 | Recreation | 1880 |
| Wataba Lake Dam | Significant | Fair | 10 | Recreation | 1900 |
| Newmanco Dam | Significant | Not Rated | 10 | Other | |
| Valley Pond Dam | Significant | Not Rated | 10 | Recreation | |
| Frye Lake Dam | Significant | Satisfactory | 10 | Recreation | 1930 |
| Alden Pond Dam | Significant | Not Rated | 10 | Recreation | |
| Blanchard Pond Dam | Significant | Not Rated | 10 | Water Supply | |
| Thayers Pond Dam | Significant | Not Rated | 10 | Recreation | 1920 |
| Valley Lake Dam | Significant | Not Rated | 10 | Recreation | |
| Ridgeview Pond Dam | Significant | Satisfactory | 10 | Recreation | |
| Mcmanus Lake Dam | Significant | Satisfactory | 10 | Recreation | |
| Rogers Pond Dam | Significant | Poor | 10 | Recreation | |
| Lockwood Pond Dam | Significant | Fair | 10 | Recreation | |
| Collins Pond Dam | Significant | Poor | 10 | Recreation | |
| Stepney Dam | Significant | Fair | 10 | Fish and Wildlife Pond | 1927 |
| Holy Ghost Fathers Pond | Significant | Not Rated | 10 | Recreation | |
| Hams Pond Dam | Significant | Satisfactory | 10 | Recreation | |
| Seeley Pond Dam | Significant | Poor | 10 | Recreation | |
| Button Mill Pond Dam | Significant | Fair | 10 | Recreation | |
| Florsheim Pond Dam | Significant | Fair | 10 | Recreation | 1874 |
| Waubeeka Lake Dam | Significant | Satisfactory | 10 | Recreation | 1933 |
| Saugatuck River Dam | Significant | Not Rated | 10 | Recreation | |
| Sherwood Mill Pond Dam | Significant | Not Rated | 10 | Recreation | 1900 |
| Green Pond Dam | Significant | Satisfactory | 10 | Recreation | 1900 |
| Greenley Pond Dam | Significant | Not Rated | 9 | Recreation | |
| Dublin Hill Dam | Significant | Not Rated | 9 | Recreation | |
| Taylors Pond Dam | Significant | Poor | 9 | Recreation | |
| Ehrsam Pond Dam | Significant | Not Rated | 9 | Recreation | |
| Blind Pond Dam | Significant | Satisfactory | 9 | Recreation | |
| Myers Pond Dam | Significant | Satisfactory | 9 | Recreation | |
| East Pond Dam Greenwich Creek | Significant | Not Rated | 9 | Recreation | |
| Blackhouse Road Pond Dam | Significant | Poor | 9 | Recreation | |
| Dingle Brook Lane Dam | Significant | Not Rated | 8 | Recreation | |
| Field Dam | Significant | Not Rated | 8 | Other | |
| Roberts Pond Dam | Significant | Satisfactory | 8 | Other | |
| Johns Pond Dam | Significant | Fair | 8 | Recreation | |
| Westport Pond Dam | Significant | Fair | 8 | Recreation | |
| Ridgewood Country Club Pond | Significant | Satisfactory | 8 | Recreation | |
| Streets Pond Dam | Significant | Satisfactory | 8 | Recreation | |
| Doyles Pond Dam | Significant | Fair | 8 | Other | |
| Putnam Park Pond Dam | Significant | Satisfactory | 8 | Recreation | 1900 |
| Road Pond Dam | Significant | Not Rated | 8 | Recreation | |
| Putnam Memorial Park Pond Dam | Significant | Poor | 8 | Fish and Wildlife Pond | |
| Newtown Pond Dam | Significant | Not Rated | 8 | Recreation | |
| Rowayton Pond Dam | Significant | Poor | 8 | Recreation | |
| Gould Manor Park Dam | Significant | Not Rated | 8 | Recreation | |
| Cos Cob Pond Dam | Significant | Fair | 8 | Recreation | |
| Ferndale Pond Dam | Significant | Not Rated | 8 | Recreation | |
| Wilshire Pond Dam | Significant | Fair | 8 | Recreation | 1920 |
| Merten's Mill Pond Dam | Significant | Not Rated | 8 | Recreation | |
| Leroy Pond Dam | Significant | Not Rated | 7 | Recreation | |
| Kovac's Pond Dam | Significant | Satisfactory | 7 | Recreation | |
| Dingletown Road Dam | Significant | Not Rated | 7 | Recreation | |
| Spring Lake Dam | Significant | Fair | 7 | Recreation | 1900 |
| Lake Wackawana Dam And Dike | Significant | Not Rated | 7 | Other | |
| Plymouth Avenue Pond Dam | Significant | Poor | 7 | Recreation | |
| Holts Ice Pond Dam | Significant | Not Rated | 7 | Recreation | |
| Mamanasco Lake Dam | Significant | Fair | 6 | Recreation | 1870 |
| Ballwall Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Siscowit Reservoir Dam | Significant | Fair | 6 | Water Supply | 1865 |
| Coat Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Westport Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Betts Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Hickok Pond Dam | Significant | Satisfactory | 6 | Recreation | |
| Ridge Pond Dam | Significant | Fair | 6 | Recreation | |
| Two Acre Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Cooper Pond Dam | Significant | Not Rated | 6 | Recreation | |
| Ironworks Road Pond Dam | Significant | Satisfactory | 6 | Recreation | 1930 |
| Dominick's Pond Dam | Significant | Fair | 5 | Recreation | |
| Hall Pond Dam | Significant | Fair | 5 | Recreation | |
| Park Pond Dam | Significant | Not Rated | 5 | Recreation | |
| Baxters Pond Dam | Significant | Not Rated | 5 | Recreation | |
| Chestnut Hill Pond Dam | Significant | Poor | 5 | Recreation | |
| Ford Pond Dam | Significant | Satisfactory | 4 | Recreation | |
| West Fork Pond Dam | Significant | Poor | 4 | Recreation | 1940 |
| Green Acre Lane Pond Dam | Significant | Fair | 4 | Recreation | |
| Bethels Pond Dam | Significant | Fair | 3 | Recreation | 1937 |
| Street Pond Dam | Significant | Not Rated | 3 | Recreation | |
| Upper Mianus River Dam | Significant | Not Rated | 3 | Recreation | 1930 |
| West Parish Trib Pond Dam | Significant | Not Rated | 2 | Other | |
| Gravel Pit Pond Dam | Significant | Not Rated | 1 | Water Supply | |
| University Pond Dam | Significant | Not Rated | 1 | Recreation | |
| Converse Lake Dike | Significant | 0 | |||
| Brunswick School Dam | Significant | Not Rated | 0 | Other | |
| Shelton Canal Dike | Low | Satisfactory | 25 | Hydroelectric | 1870 |
| Brush Reservoir Dam | Low | Poor | 23 | Water Supply | 1925 |
| Haviland Millpond Dam | Low | Not Rated | 12 | Recreation | 1920 |