Chief Joseph Dam, Hydroelectric gravity dam in Washington, US
Chief Joseph Dam extends 1,817 meters across the Columbia River, incorporating 27 Francis turbines for electricity generation through its concrete structure.
Construction of the main dam structure began in 1949, reaching completion in 1955, while the final operational capacity was achieved in 1979.
The dam bears the name of a Nez Perce leader who lived his last years in the Colville Indian Reservation near the current dam location.
The facility produces 2,620 megawatts of electricity through its powerhouse, making it one of the largest hydroelectric installations in the United States.
The dam creates Rufus Woods Lake, which stretches 51 miles upstream and covers 34 square kilometers of surface area.
Location: Douglas County
Location: Okanogan County
Inception: 1949
Length: 1,817 m
GPS coordinates: 47.99530,-119.63300
Latest update: May 27, 2025 13:14
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