Dams in Onondaga County, New York
23Total Dams
9High Hazard
7Significant
Dam Safety in Onondaga County, New York
Onondaga County has 23 dams tracked in the National Inventory of Dams. Of these, 9 are classified as high hazard — meaning failure would probably cause loss of human life. Another 7 carry a significant hazard classification. Currently, 6 dams have a condition assessment of poor or unsatisfactory.
The average dam in Onondaga County is 89 years old. The most common purpose is recreation. The tallest dam is Deruyter Dam at 68 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Deruyter Dam | High | Satisfactory | 68 | Navigation | 1863 |
| Onondaga Dam | High | Satisfactory | 67 | Flood Risk Reduction | 1949 |
| Jamesville Reservoir Dam | High | Poor | 53 | Navigation | 1874 |
| Woodland Reservoir Dam | High | Satisfactory | 36 | Water Supply | 1894 |
| East Syracuse Reservoir Dam | High | Poor | 33 | Recreation | 1922 |
| Skaneateles Lake Dam | High | Satisfactory | 22 | Recreation | 1902 |
| Lock 24 Dam Erie Canal | High | Poor | 21 | Hydroelectric | 1908 |
| Otisco Lake Dam | High | Satisfactory | 18 | Recreation | 1956 |
| Velasko Road Detention Basin Dam | High | Satisfactory | 13 | Flood Risk Reduction | 1980 |
| Doubletree Subdivision Dam | Significant | Poor | 28 | Flood Risk Reduction | 1991 |
| Willetts Pond Dam | Significant | Poor | 24 | Recreation | 1974 |
| Edwards Falls Dam | Significant | Poor | 24 | Other | 1898 |
| Pompey Center Pond Dam | Significant | Satisfactory | 13 | Other | |
| Glencliff Road Detention Basin Dam | Significant | Satisfactory | 13 | Flood Risk Reduction | 1977 |
| Lake Oberon Dam | Significant | Satisfactory | 12 | Recreation | 1974 |
| Willow Stream Dam | Significant | Satisfactory | 10 | Flood Risk Reduction | 1997 |
| Jamesville Water District Dam | Low | Not Rated | 35 | Water Supply | 1927 |
| Elmcrest Childrens Center Dam | Low | Not Rated | 23 | Recreation | 1980 |
| Skaneateles Creek Dam | Low | Not Rated | 22 | Other | |
| Larry Halloran Pond Dam | Low | Not Rated | 22 | Recreation | 1963 |
| Snooks Ice Pond Dam | Low | Not Rated | 15 | Recreation | 1850 |
| Benson Road Pond Dam | Low | Not Rated | 9 | Recreation | |
| Old Fly Wildlife Dam | Low | Not Rated | 9 | Other | 1958 |