Dams in Oswego County, New York
34Total Dams
7High Hazard
11Significant
Dam Safety in Oswego County, New York
Oswego County has 34 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 11 carry a significant hazard classification. Currently, 5 dams have a condition assessment of poor or unsatisfactory.
The average dam in Oswego County is 99 years old. The most common purpose is hydroelectric. The tallest dam is Lighthouse Hill at 47 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lighthouse Hill | High | Fair | 47 | Hydroelectric | 1930 |
| Bennetts Bridge | High | Fair | 35 | Hydroelectric | 1914 |
| High Dam | High | Fair | 35 | Hydroelectric | 1928 |
| Minetto Lock & Dam 5 | High | Fair | 23 | Hydroelectric | 1915 |
| Bennetts Bridge - Dike B | High | Satisfactory | 13 | Hydroelectric | 1914 |
| Bennetts Bridge - Dike C | High | Satisfactory | 10 | Hydroelectric | 1914 |
| Waterbury Roadway Embankment | High | Satisfactory | 5 | Hydroelectric | 1914 |
| Cedar Lake Dam | Significant | Poor | 15 | Recreation | 1985 |
| Pulaski Dam | Significant | Poor | 15 | Recreation | 1918 |
| Granby | Significant | Satisfactory | 15 | Hydroelectric | 1926 |
| Varick Lock & Dam 7 | Significant | Satisfactory | 14 | Hydroelectric | 1926 |
| Sage Pond Dam | Significant | Satisfactory | 13 | Recreation | 1957 |
| Upper Fulton Lock & Dam 2 | Significant | Fair | 13 | Hydroelectric | 1927 |
| Mosher Dam | Significant | Satisfactory | 12 | Other | 1937 |
| Phoenix Lock & Dam No. 1 | Significant | Satisfactory | 11 | Hydroelectric | 1914 |
| Hannibal Dam | Significant | Fair | 10 | Fire Protection, Stock, Or Small Fish Pond | 1907 |
| Sharps Pond Dam | Significant | Poor | 10 | Recreation | 1910 |
| Mallory Dam | Significant | Not Rated | 6 | Recreation | 1909 |
| Autumn Lake Dam | Low | Not Rated | 28 | Recreation | 1971 |
| City Of Oswego Dam | Low | Not Rated | 21 | Hydroelectric | 1956 |
| Roland Foster Dam | Low | Not Rated | 19 | Other | 1964 |
| Whitney Pond Dam | Low | Not Rated | 17 | Fish and Wildlife Pond | 1938 |
| Caughdenoy Dam | Low | Not Rated | 15 | Navigation | 1909 |
| Cody Pond Dam | Low | Not Rated | 14 | Hydroelectric | |
| Long Pond Dam | Low | Not Rated | 14 | Other | 1937 |
| Carterville Dam | Low | Not Rated | 14 | Recreation | 1840 |
| Wiltse Dam | Low | Not Rated | 13 | Recreation | |
| Chase Dam | Low | Not Rated | 10 | Recreation | 1910 |
| Kasoag Lake Dam | Low | Poor | 10 | Recreation | 1820 |
| Russ Mills Dam | Low | Not Rated | 9 | Recreation | 1912 |
| Slippery Corners Dam | Low | Not Rated | 9 | Other | 1959 |
| Frederick Britton Wildlife Marsh Dam | Low | Not Rated | 9 | Other | 1952 |
| State University College At Oswego Dam | Low | Poor | 8 | Other | 1963 |
| Earl Mitchelson Dam | Low | Not Rated | 7 | Other | 1958 |