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Photo: Eric Prado, CC BY-SA 4.0 via Wikimedia Commons
The Bridge of the Gods is a steel truss cantilever bridge that spans the Columbia River between Cascade Locks, Oregon, and Washington state near Stevenson. It is approximately 40 miles (64 km) east of Portland, Oregon, and 4 miles (6.4 km) upriver from Bonneville Dam. It is a toll bridge operated by the Port of Cascade Locks, and it is named after the historic land bridge on the river.
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The third highest hydropower project in the US, at about 1.2 MWatts. Accessible via exit 40 on I-84, you can visit the dam (after passing a friendly guard who will inspect your car) as well as a fish ladder installed by the Army Corps of Engineers. Salmon run in the river almost year-round, but the fall is peak season.