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Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of Multnomah Falls on Historic Columbia River Highway, Troutdale, Multnomah County, OR

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of...

Significance: This 400' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of Multnomah Falls on Historic Columbia River Highway, Troutdale, Multnomah County, OR

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of...

Significance: This 400' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of Multnomah Falls on Historic Columbia River Highway, Troutdale, Multnomah County, OR

Historic Columbia River Highway, West Multnomah Falls Viaduct, West of...

Significance: This 400' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of Multnomah Falls, Troutdale, Multnomah County, OR

Historic Columbia River Highway, East Multnomah Falls Viaduct, East of...

Significance: This 860' half-viaduct was an engineer's solution to aligning the Historic Columbia River Highway between a steep unstable slope and the Oregon Washington Railroad and Navigation Company main line... More