32Total Dams
5High Hazard
5Significant
Dam Safety in Lewis County, New York
Lewis County has 32 dams tracked in the National Inventory of Dams. Of these, 5 are classified as high hazard — meaning failure would probably cause loss of human life. Another 5 carry a significant hazard classification.
The average dam in Lewis County is 94 years old. The most common purpose is hydroelectric. The tallest dam is Rome City Dam at 85 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Rome City Dam | High | Satisfactory | 85 | Water Supply | 1958 |
| High Falls | High | Satisfactory | 50 | Hydroelectric | 1925 |
| Upper Beaver Falls | High | Satisfactory | 27 | Hydroelectric | 1937 |
| Effley Intake | High | Satisfactory | 26 | Hydroelectric | 1902 |
| Whetstone Gulf Storage Dam | High | Fair | 23 | Recreation | 1961 |
| High Falls Dam at Copenhagen | Significant | Not assessed | 25 | Hydroelectric | 1909 |
| Adirondack Acres Dam a | Significant | Satisfactory | 24 | Recreation | 1971 |
| Taylorville - South Dam | Significant | Satisfactory | 23 | Hydroelectric | 1914 |
| Boise Cascade Lower Dam | Significant | Not assessed | 14 | Hydroelectric | 1865 |
| Rome City Dam Dike | Significant | Fair | 7 | Water Supply | 1958 |
| Port Leyden | Low | Satisfactory | 32 | Hydroelectric | 1983 |
| Denley | Low | Satisfactory | 29 | Hydroelectric | 1912 |
| Harrisville | Low | Satisfactory | 25 | Hydroelectric | 1905 |
| Elmer | Low | Satisfactory | 23 | Hydroelectric | 1917 |
| Eagle | Low | Satisfactory | 22 | Hydroelectric | 1915 |
| Belfort | Low | Satisfactory | 19 | Hydroelectric | 1904 |
| Rock Island | Low | Satisfactory | 18 | Hydroelectric | 1984 |
| Soft Maple Spillway | Low | Satisfactory | 15 | Hydroelectric | 1926 |
| Gouldtown - Mill 5 West Channel | Low | Satisfactory | 15 | Hydroelectric | 1915 |
| Beaver Meadow Brook Dam | Low | Not assessed | 14 | Recreation | 1937 |
| Constableville Fish & Game Club Dam | Low | Not assessed | 14 | Recreation | 1982 |
| Blanchard Pond Dam | Low | Not assessed | 13 | Recreation | 1931 |
| Crystal Lake Dike | Low | Not assessed | 12 | Hydroelectric | |
| Croghan Island Dam | Low | Not assessed | 12 | Other | 1919 |
| Brantingham Lake Dam | Low | Not assessed | 10 | Recreation | 1914 |
| Lyons Falls - Mill 3 | Low | Satisfactory | 10 | Hydroelectric | 1922 |
| Gould Paper Co Dam | Low | Not assessed | 9 | Other | 1938 |
| Lyonsdale - Dam No. 2 | Low | Satisfactory | 9 | Hydroelectric | 1935 |
| Smith Brook Lower Dam | Low | Not assessed | 8 | Other | 1937 |
| John Teal Recreational Pond Dam | Low | Not assessed | 8 | Recreation | 1973 |
| Alpina Dam | Low | Not assessed | 7 | Other | 1933 |
| William J Tucker Dam | Low | Not assessed | 7 | Recreation | 1910 |