Lyonsdale - Dam No. 1
New York — Lewis County — Moose River
Location
| State | New York |
| County | Lewis |
| River | Moose River |
| Coordinates | 43.61880, -75.30440 |
Physical Characteristics
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 135 ft |
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Surface Area | 9 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | September 19, 2019 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1935 |
| Primary Purpose | Hydroelectric |
| Dam Type | Concrete |
| Owner Type | Private |
| Owner | Lyonsdale Associates, LLC |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.