Out of This World

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Bonneville Dam Fish Window

U.S. Army Corps of Engineers, Portland District

June 19, 2020 | 1:19

Salmon migrate up the Columbia River, between Washington and Oregon states, June 19, 2020. These fish are passing by a "fish window" at Bonneville Lock and Dam, which the U.S. Army Corps of Engineers, Portland district built and still operates.

Bonneville was the first federal lock and dam on the Columbia and Snake rivers. 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.

Today, the project is a critical part of the water resource management system that provides flood risk management, power generation, water quality improvement, irrigation, fish and wildlife habitat and recreation along the Columbia River.