Bonneville Dam

The Bonneville Dam is a dam located on the Columbia River, which forms the boundary between Oregon and Washington in the United States. Completed in 1937, it is one of the major dams on the Columbia River, a significant source of hydroelectric power. The Columbia River is the largest river flowing into the Pacific Ocean from North America and is crucial for hydroelectric power generation in the United States.12

Dams like Bonneville can impact fish populations, particularly salmon. Conservation measures, including fish passes and ladders, have been implemented at Bonneville Dam to help adult salmon migrate upstream to spawn and allow young salmon to safely travel downstream to the ocean. Despite these efforts, dams on the Columbia River system have contributed to declines in salmon populations.32