Power Lake Dam, also known as Calispell Dam, is a rockfill structure located in Cusick, Washington, on the North Fork Calispell Creek.
Wind
Humidity
Built in 1922 for hydroelectric purposes, this dam has a hydraulic height of 56 feet and a structural height of 56 feet, with a storage capacity of 1450 acre-feet. The dam is owned by a public utility and is regulated by the Washington Department of Ecology, ensuring its compliance with state permitting, inspection, and enforcement regulations.
With a hazard potential categorized as high, Power Lake Dam has been assessed as being in satisfactory condition as of the last inspection in 2015. The dam's emergency action plan was last revised in December 2021, and while there are no inundation maps or risk assessments available, the dam is regularly inspected every five years to ensure its safety and functionality. The dam's location in Pend Oreille County, Washington, makes it a vital component of the region's water resource infrastructure, providing hydroelectric power and water storage for the surrounding area.
Year Completed |
1922 |
Dam Length |
150 |
River Or Stream |
North Fork Calispell Creek |
Primary Dam Type |
Rockfill |
Surface Area |
62 |
Hydraulic Height |
56 |
Drainage Area |
56.4 |
Nid Storage |
1450 |
Structural Height |
56 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
56 |
Little Spokane River At Elk
|
48cfs |
Pend Oreille River At Newport Wa
|
17000cfs |
Priest River Nr Priest River Id
|
955cfs |
Priest R Outflow Nr Coolin
|
764cfs |
Little Spokane River At Dartford
|
173cfs |
Little Spokane River Near Dartford
|
457cfs |