Dams in Delaware County, New York
55Total Dams
7High Hazard
19Significant
Dam Safety in Delaware County, New York
Delaware County has 55 dams tracked in the National Inventory of Dams. Of these, 7 are classified as high hazard — meaning failure would probably cause loss of human life. Another 19 carry a significant hazard classification. Currently, 15 dams have a condition assessment of poor or unsatisfactory.
The average dam in Delaware County is 70 years old. The most common purpose is recreation. The tallest dam is Downsville Dam at 204 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Downsville Dam | High | Satisfactory | 204 | Water Supply | 1954 |
| Cannonsville Dam | High | Satisfactory | 175 | Water Supply | 1964 |
| East Sidney Dam | High | Not Available | 130 | Flood Risk Reduction | 1950 |
| Roxbury Dam | High | Poor | 36 | Recreation | 1912 |
| Rexmere Dam | High | Poor | 27 | Recreation | 1965 |
| Churchill Dam | High | Poor | 21 | Recreation | 1965 |
| Scotty's Dam | High | Satisfactory | 18 | Recreation | 1949 |
| Sidney Reservoir #5 Dam | Significant | Poor | 77 | Water Supply | 1936 |
| Kazam Pond Dam | Significant | Poor | 35 | Other | 1977 |
| Darlton Lake Dam | Significant | Fair | 34 | Recreation | 1967 |
| Bruce Persson Dam | Significant | Poor | 27 | Recreation | 1999 |
| Jerome J Roach Dam | Significant | Satisfactory | 26 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Howard La Fever Dam #1 | Significant | Not Rated | 25 | Recreation | 1979 |
| Edward Klimchock Dam | Significant | Poor | 23 | Other | 1981 |
| Korianski Pond Dam | Significant | Poor | 22 | Other | 1974 |
| Camp Ta-ri-go Dam | Significant | Poor | 19 | Recreation | 1938 |
| West Brook Dam | Significant | Fair | 18 | Other | 1888 |
| Robert Ebner Pond Dam | Significant | Poor | 18 | Recreation | 1976 |
| Cornelius S Smith Dam & Dike | Significant | Poor | 17 | Recreation | 1959 |
| Howard Lafever Dam | Significant | Satisfactory | 17 | Recreation | 1976 |
| Thomas J Kelaher Dam | Significant | Satisfactory | 16 | Recreation | 1961 |
| Lower Cornelius S Smith Dam | Significant | Poor | 15 | Recreation | 1959 |
| Tanglewood Lake Dam | Significant | Poor | 14 | Recreation | 1980 |
| Waldemar Derke Pond Dam | Significant | Satisfactory | 11 | Recreation | 1963 |
| Trout Pond Dam | Significant | Not Rated | 8 | Fish and Wildlife Pond | |
| Halcottsville Dam | Significant | Poor | 7 | Recreation | 1909 |
| Chiloway Lake Dam | Low | Not Rated | 33 | Recreation | 1961 |
| Masonville Dam | Low | Not Rated | 30 | Recreation | |
| Rainbow Lodge Dam | Low | Not Rated | 30 | Recreation | |
| Rassmusen Dam | Low | Not Rated | 27 | Recreation | 1976 |
| John Crane Dam | Low | Not Rated | 27 | Recreation | |
| Betty Brook Dam | Low | Poor | 21 | Recreation | 1972 |
| Gerrit Lydecker Pond Dam | Low | Not Rated | 21 | Recreation | 1965 |
| Deer Lake Dam | Low | Not Rated | 20 | Recreation | 1940 |
| Robert Nichol Dam | Low | Not Rated | 19 | Recreation | 1990 |
| Lazio Pond Dam | Low | Not Rated | 18 | Recreation | 1975 |
| Hathaway Pond Dam | Low | Not Rated | 18 | Recreation | 1800 |
| Ivars Pauksis Dam | Low | Not Rated | 17 | Recreation | 1976 |
| Brs Development Dam | Low | Not Rated | 16 | Recreation | 1987 |
| T Bertram Anderson Dam | Low | Not Rated | 16 | Recreation | 1973 |
| Robert L Bishop Duck Marsh Dam | Low | Not Rated | 16 | Other | 1979 |
| Mountain Lake Dam | Low | Not Rated | 15 | Recreation | 1930 |
| Little Pond Dam | Low | Not Rated | 14 | Other | 1916 |
| George Bryant Dam | Low | Not Rated | 14 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Launt Pond Dam | Low | Not Rated | 14 | Recreation | 1938 |
| Gifford, Kahabka & Rutenber Dam | Low | Not Rated | 14 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Mance Pond Dam | Low | Not Rated | 12 | Recreation | 1991 |
| Beaver Run Dam | Low | Not Rated | 11 | Recreation | 1976 |
| Geiger Dam | Low | Not Rated | 10 | Recreation | 2009 |
| Huggins Lake Dam | Low | Not Rated | 10 | Recreation | 1962 |
| Guntert Wildlife Marsh Dam | Low | Not Rated | 9 | Other | 1954 |
| Lake Delaware Dam | Low | Not Rated | 9 | Recreation | 1840 |
| Laurel Lake Dam | Low | Not Rated | 9 | Other | |
| Bishop & Chase Marsh Dam & Dike | Low | Not Rated | 9 | Fish and Wildlife Pond | 1954 |
| Spring Lake Dam | Low | Not Rated | 8 | Recreation | 1920 |