Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Horsetail Falls Bridge, Spanning Hors...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Historic Columbia River Highway, Crown Point, East of Corbett, Troutda...
Survey number: HAER OR-36-D Building/structure dates: 1914 Initial Construction Building/structure dates: 1918 Subsequent Work Building/structure dates: 1930 Subsequent Work National Register of Historic Pl... More
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, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Oneonta Tunnel, Adjacent to Historic ...
Significance: One of four tunnels on the Historic Columbia River Highway. Survey number: HAER OR-36-L Building/structure dates: 1914 Initial Construction Building/structure dates: 1948 Subsequent Work Build... More
Historic Columbia River Highway, Crown Point Viaduct, Encircling Vista...
Significance: A half-viaduct designed to carry pedestrians around the outer edge of a spiral section of roadway around the top of a 725' promontory on the Historic Columbia River Highway. Ingenious use of rein... More
Historic Columbia River Highway, Crown Point Viaduct, Encircling Vista...
Significance: A half-viaduct designed to carry pedestrians around the outer edge of a spiral section of roadway around the top of a 725' promontory on the Historic Columbia River Highway. Ingenious use of rein... More
Historic Columbia River Highway, Multnomah Falls Footbridge, Spanning ...
Significance: A reinforced-concrete arch pedestrian bridge over the Lower Multnomah Falls. One of the few bridges constructed on the highway strictly for pedestrian use. Survey number: HAER OR-36-I Building/... More
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, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Eagle Creek Bridge, Spanning Eagle Cr...
Significance: The only stone-veneered reinforced-concrete arch bridge and one of only eight arch spans on the Historic Columbia River Highway. It is the last bridge in the Multnomah County section of the Histo... More
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, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Crown Point Viaduct, Encircling Vista...
Significance: A half-viaduct designed to carry pedestrians around the outer edge of a spiral section of roadway around the top of a 725' promontory on the Historic Columbia River Highway. Ingenious use of rein... More
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, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Multnomah Creek Bridge, Historic Colu...
Survey number: HAER OR-36-H Building/structure dates: 1914 Initial Construction National Register of Historic Places NRIS Number: 83004168
Historic Columbia River Highway, Multnomah Falls Footbridge, Spanning ...
Significance: A reinforced-concrete arch pedestrian bridge over the Lower Multnomah Falls. One of the few bridges constructed on the highway strictly for pedestrian use. Survey number: HAER OR-36-I Building/... More
Historic Columbia River Highway, Multnomah Falls Footbridge, Spanning ...
Significance: A reinforced-concrete arch pedestrian bridge over the Lower Multnomah Falls. One of the few bridges constructed on the highway strictly for pedestrian use. Survey number: HAER OR-36-I Building/... More
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, Bridal Veil Falls Bridge, Spanning Br...
Significance: Site constraints forced Multnomah County and the Oregon State Highway Commission to select a skewed reinforced-concrete deck girder span for this location. The span's angled bents and its tall an... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Crown Point, East of Corbett, Troutda...
Survey number: HAER OR-36-D Building/structure dates: 1914 Initial Construction Building/structure dates: 1918 Subsequent Work Building/structure dates: 1930 Subsequent Work National Register of Historic Pl... More
Historic Columbia River Highway, Crown Point, East of Corbett, Troutda...
Survey number: HAER OR-36-D Building/structure dates: 1914 Initial Construction Building/structure dates: 1918 Subsequent Work Building/structure dates: 1930 Subsequent Work National Register of Historic Pl... More
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, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Historic Columbia River Highway, Oneonta Gorge Creek Bridge, Spanning ...
Significance: One of two nearly identical reinforced-concrete girder trestles on the Historic Columbia River Highway and one of four extant structures on the route that have a distinctive cap and arch concrete ... More
Historic Columbia River Highway, Crown Point Viaduct, Encircling Vista...
Significance: A half-viaduct designed to carry pedestrians around the outer edge of a spiral section of roadway around the top of a 725' promontory on the Historic Columbia River Highway. Ingenious use of rein... More
Historic Columbia River Highway, Eagle Creek Bridge, Spanning Eagle Cr...
Significance: The only stone-veneered reinforced-concrete arch bridge and one of only eight arch spans on the Historic Columbia River Highway. It is the last bridge in the Multnomah County section of the Histo... More
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, Bridal Veil Falls Bridge, Spanning Br...
Significance: Site constraints forced Multnomah County and the Oregon State Highway Commission to select a skewed reinforced-concrete deck girder span for this location. The span's angled bents and its tall an... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More
Historic Columbia River Highway, Troutdale, Multnomah County, OR
Significance: The Historic Columbia River Highway is one of the oldest scenic highways in the United States. It was an early twentieth-century technical and civic achievement, successfully mixing sensitivity t... More