Mossyrock Dam

Mossyrock Dam is a concrete arch-gravity dam on the Cowlitz River near Mossyrock in Lewis County, Washington. The reservoir created by the dam is called Riffe Lake and the primary purpose of the dam is hydroelectric production while flood control is secondary. The dam is the tallest in Washington State and its hydroelectric power station supplies 40% of Tacoma Power's electricity.

Mossyrock Dam

Mossyrock Dam is a concrete arch-gravity dam on the Cowlitz River near Mossyrock in Lewis County, Washington. The reservoir created by the dam is called Riffe Lake and the primary purpose of the dam is hydroelectric production while flood control is secondary. The dam is the tallest in Washington State and its hydroelectric power station supplies 40% of Tacoma Power's electricity.