62Total Dams
21High Hazard
19Significant
Dam Safety in Putnam County, New York
Putnam County has 62 dams tracked in the National Inventory of Dams. Of these, 21 are classified as high hazard — meaning failure would probably cause loss of human life. Another 19 carry a significant hazard classification. Currently, 17 dams have a condition assessment of poor or unsatisfactory.
The average dam in Putnam County is 92 years old. The most common purpose is recreation. The tallest dam is Croton Falls Dam at 113 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Croton Falls Dam | High | Satisfactory | 113 | Water Supply | 1910 |
| Middle Branch Dam | High | Satisfactory | 95 | Water Supply | 1878 |
| West Branch Dam | High | Satisfactory | 85 | Water Supply | 1895 |
| Boyds Corner Dam | High | Fair | 78 | Water Supply | 1872 |
| Sodom Dam | High | Satisfactory | 78 | Water Supply | 1892 |
| Cargill Reservoir Dam | High | Satisfactory | 75 | Water Supply | 1931 |
| Carmel Auxiliary Dike | High | Satisfactory | 64 | Water Supply | 1895 |
| Mountain Brook Dam | High | Satisfactory | 58 | Irrigation | 1997 |
| Diverting Reservoir Dam | High | Satisfactory | 54 | Water Supply | 1911 |
| Bog Brook Dam #1 | High | Satisfactory | 47 | Water Supply | 1893 |
| Lower (south) Wiccopee Dam | High | Poor | 45 | Water Supply | 1913 |
| Upper (north) Wiccopee Dam | High | Satisfactory | 34 | Water Supply | 1939 |
| Roaring Brook Dam | High | Fair | 25 | Recreation | 1959 |
| Perkins Estate Pond Dam | High | Poor | 25 | Recreation | 1927 |
| Cold Spring Dam (lower) | High | Poor | 25 | Water Supply | 1942 |
| Lake Carmel Dam | High | Poor | 25 | Recreation | 1930 |
| Putnam Lake Dam | High | Fair | 24 | Fire Protection, Stock, Or Small Fish Pond | 1931 |
| Bog Brook Dam #2 | High | Satisfactory | 24 | Water Supply | 1936 |
| Cold Spring Dam (upper) | High | Poor | 23 | Water Supply | 1934 |
| Lake Peekskill Dam | High | Poor | 16 | Recreation | 1928 |
| Marcell Roth Lake Dam | High | Satisfactory | 12 | Recreation | 1955 |
| Pelton Pond Dam | Significant | Poor | 41 | Other | 1939 |
| Lake Macgregor Dam | Significant | Satisfactory | 38 | Recreation | 1955 |
| Kirk Lake Dam | Significant | Satisfactory | 28 | Recreation | 1871 |
| Sagamore Lake Dam | Significant | Satisfactory | 22 | Recreation | 1946 |
| Ryder Lake Dam | Significant | Poor | 21 | Recreation | 1955 |
| Colt Estate Dam | Significant | Not assessed | 20 | Recreation | 1908 |
| Lake Valhalla Dam | Significant | Poor | 19 | Recreation | 1928 |
| Frederick W Cook Dam | Significant | Poor | 16 | Irrigation | |
| Lake Casse Dam | Significant | Poor | 14 | Recreation | 1953 |
| White Pond Dam | Significant | Not assessed | 12 | Recreation | 1899 |
| South Lake Dam (lower) | Significant | Poor | 12 | Recreation | 1921 |
| South Lake Dam (upper) | Significant | Poor | 12 | Recreation | 1921 |
| South Lake Dam (middle) | Significant | Poor | 12 | Recreation | 1921 |
| Camp Herrlich Dam | Significant | Fair | 12 | Recreation | 1981 |
| Loch Lyall Dam | Significant | Poor | 11 | Recreation | 1950 |
| Upper Teakettle Spout Lake Dam | Significant | Poor | 11 | Recreation | 1950 |
| Lake Mahopac Dam | Significant | Satisfactory | 9 | Recreation | 1940 |
| Floradan Estates Dam | Significant | Not assessed | 8 | Recreation | 1982 |
| Continental Village Dam | Significant | Poor | 8 | Recreation | |
| Stillwater Pond Dam | Low | Not assessed | 42 | Water Supply | 1939 |
| John Allen Pond Dam | Low | Not assessed | 22 | Recreation | 1935 |
| Leland Ryder Lake Dam | Low | Not assessed | 21 | Recreation | 1965 |
| Rihm & Kittel Dam | Low | Not assessed | 20 | Recreation | 1956 |
| Canopus Lake North End Dam | Low | Not assessed | 20 | Other | 1972 |
| Juengst Dam | Low | Not assessed | 16 | Recreation | 1886 |
| Lower Lake Nimham Dam | Low | Not assessed | 16 | Recreation | 1968 |
| Clover Lake Estates Dam | Low | Not assessed | 16 | Recreation | |
| David Ulmar Pond Dam | Low | Not assessed | 15 | Recreation | 1953 |
| Levine Lake Dam a | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Lake Gilead Dam | Low | Not assessed | 15 | Recreation | |
| Seven Hills Realty Co Inc Dam | Low | Not assessed | 15 | Recreation | 1957 |
| Drew Lake Dam | Low | Not assessed | 13 | Recreation | 1835 |
| Barrett Pond Dam | Low | Not assessed | 13 | Recreation | 1920 |
| China Pond Dam | Low | Not assessed | 13 | Recreation | 1927 |
| Duck Pond Dam a & B | Low | Not assessed | 13 | Other | 1971 |
| Lake Surprise Dam | Low | Not assessed | 10 | Recreation | |
| Lost Lake Dam & Dike | Low | Not assessed | 10 | Recreation | 1977 |
| Lake Tibet Dam | Low | Not assessed | 8 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Levine Lake Dam B (dike) | Low | Not assessed | 8 | Recreation | 1961 |
| East Mountain Lake Dam | Low | Not assessed | 7 | Recreation | 1932 |
| Wonder Lake Dam | Low | Not assessed | 7 | Recreation | 1950 |