Boise Cascade Lower Dam is a concrete dam located in Lewis County, New York, built in 1865. It carries a Significant hazard potential classification.
Dam profile
NID height · 14 ft14 ft tall and 400 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Boise Cascade Lower Dam
The primary purpose of Boise Cascade Lower Dam 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 Eagle Creek Hydro Power, LLC (private). It impounds the Beaver River near Beaver Falls.
The dam stands 14 feet tall and stretches 400 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 209 acre-feet, and collects water from a drainage area of 324 square miles. Completed in 1865, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 08/08/2000. That was over 26 years ago.
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Location
| State | New York |
| County | Lewis |
| Nearest City | Beaver Falls |
| River/Stream | Beaver River |
| Coordinates | 43.88417, -75.43083 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 400 ft |
| Year Completed | 1865 (161 years old) |
Storage & Hydraulics
| NID Storage | 209 acre-ft |
| Max Storage | 209 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 324 sq mi |
| Max Discharge | 18,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Eagle Creek Hydro Power, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 08/08/2000 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00756 |
| Federal ID | NY00756 |
| More Info | State Dam Safety Program |