Dams in Niagara County, New York
10Total Dams
6High Hazard
1Significant
Dam Safety in Niagara County, New York
Niagara County has 10 dams tracked in the National Inventory of Dams. Of these, 6 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Niagara County is 96 years old. The most common purpose is navigation. The tallest dam is Lewiston at 155 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lewiston | High | Satisfactory | 155 | Hydroelectric | 1963 |
| Robert Moses - Niagara | High | Satisfactory | 97 | Hydroelectric | 1963 |
| Burt Dam | High | Satisfactory | 49 | Hydroelectric | 1924 |
| Maybees Waste Weir Dam | High | Not Rated | 21 | Navigation | 1918 |
| Middleport Waste Weir Dam | High | Not Rated | 17 | Navigation | 1918 |
| Halls Waste Weir Dam | High | Not Rated | 17 | Navigation | 1918 |
| Newfane Dam | Significant | Poor | 14 | Other | 1912 |
| Middleport Reservoir Dam | Low | Not Rated | 21 | Water Supply | 1931 |
| Watsons Waste Weir Dam | Low | Not Rated | 16 | Navigation | 1918 |
| Gill Creek Dam | Low | Not Rated | 12 | Recreation | 1927 |