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 assessed | 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 assessed | 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 assessed | 8 | Fish and Wildlife Pond | |
| Halcottsville Dam | Significant | Poor | 7 | Recreation | 1909 |
| Chiloway Lake Dam | Low | Not assessed | 33 | Recreation | 1961 |
| Masonville Dam | Low | Not assessed | 30 | Recreation | |
| Rainbow Lodge Dam | Low | Not assessed | 30 | Recreation | |
| Rassmusen Dam | Low | Not assessed | 27 | Recreation | 1976 |
| John Crane Dam | Low | Not assessed | 27 | Recreation | |
| Betty Brook Dam | Low | Poor | 21 | Recreation | 1972 |
| Gerrit Lydecker Pond Dam | Low | Not assessed | 21 | Recreation | 1965 |
| Deer Lake Dam | Low | Not assessed | 20 | Recreation | 1940 |
| Robert Nichol Dam | Low | Not assessed | 19 | Recreation | 1990 |
| Lazio Pond Dam | Low | Not assessed | 18 | Recreation | 1975 |
| Hathaway Pond Dam | Low | Not assessed | 18 | Recreation | 1800 |
| Ivars Pauksis Dam | Low | Not assessed | 17 | Recreation | 1976 |
| Brs Development Dam | Low | Not assessed | 16 | Recreation | 1987 |
| T Bertram Anderson Dam | Low | Not assessed | 16 | Recreation | 1973 |
| Robert L Bishop Duck Marsh Dam | Low | Not assessed | 16 | Other | 1979 |
| Mountain Lake Dam | Low | Not assessed | 15 | Recreation | 1930 |
| Little Pond Dam | Low | Not assessed | 14 | Other | 1916 |
| George Bryant Dam | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Launt Pond Dam | Low | Not assessed | 14 | Recreation | 1938 |
| Gifford, Kahabka & Rutenber Dam | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Mance Pond Dam | Low | Not assessed | 12 | Recreation | 1991 |
| Beaver Run Dam | Low | Not assessed | 11 | Recreation | 1976 |
| Geiger Dam | Low | Not assessed | 10 | Recreation | 2009 |
| Huggins Lake Dam | Low | Not assessed | 10 | Recreation | 1962 |
| Guntert Wildlife Marsh Dam | Low | Not assessed | 9 | Other | 1954 |
| Lake Delaware Dam | Low | Not assessed | 9 | Recreation | 1840 |
| Laurel Lake Dam | Low | Not assessed | 9 | Other | |
| Bishop & Chase Marsh Dam & Dike | Low | Not assessed | 9 | Fish and Wildlife Pond | 1954 |
| Spring Lake Dam | Low | Not assessed | 8 | Recreation | 1920 |