Dams in Lewis County, New York
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 Rated | 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 Rated | 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 Rated | 14 | Recreation | 1937 |
| Constableville Fish & Game Club Dam | Low | Not Rated | 14 | Recreation | 1982 |
| Blanchard Pond Dam | Low | Not Rated | 13 | Recreation | 1931 |
| Crystal Lake Dike | Low | Not Rated | 12 | Hydroelectric | |
| Croghan Island Dam | Low | Not Rated | 12 | Other | 1919 |
| Brantingham Lake Dam | Low | Not Rated | 10 | Recreation | 1914 |
| Lyons Falls - Mill 3 | Low | Satisfactory | 10 | Hydroelectric | 1922 |
| Gould Paper Co Dam | Low | Not Rated | 9 | Other | 1938 |
| Lyonsdale - Dam No. 2 | Low | Satisfactory | 9 | Hydroelectric | 1935 |
| Smith Brook Lower Dam | Low | Not Rated | 8 | Other | 1937 |
| John Teal Recreational Pond Dam | Low | Not Rated | 8 | Recreation | 1973 |
| Alpina Dam | Low | Not Rated | 7 | Other | 1933 |
| William J Tucker Dam | Low | Not Rated | 7 | Recreation | 1910 |