Overview
Come visit Bonneville Hydroelectric Dam and Fish Hatchery!
Bonneville Lock and Dam is located 145 river miles from the mouth of the Columbia River and about 40 miles east of Portland, Ore., near Cascade Locks, Ore., and North Bonneville, Wash.
The project’s first powerhouse, spillway and original navigation lock were completed in 1938 to improve navigation on Columbia River and provide hydropower to the Pacific Northwest. A second powerhouse was completed in 1981, and a larger navigation lock in 1993.
A Public Works Administration project of President Franklin D. Roosevelt’s New Deal, portions of Bonneville Lock and Dam Project were declared a National Historic Landmark in 1987.
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