Lyonsdale - Dam No. 2
Lyonsdale - Dam No. 2 is a concrete dam located in Lewis County, New York, built in 1935. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lyonsdale - Dam No. 2
The primary purpose of Lyonsdale - Dam No. 2 is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Lyonsdale Associates, Llc (private). It impounds the Moose River near Lyons Falls.
The dam stands 9 feet tall and stretches 34 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 426 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/19/2019.
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Location
| State | New York |
| County | Lewis |
| Nearest City | Lyons Falls |
| River/Stream | Moose River |
| Coordinates | 43.61880, -75.30430 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 34 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 426 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Lyonsdale Associates, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/19/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY12234 |
| Federal ID | NY12234S001 |
| More Info | State Dam Safety Program |