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About

Nearby Bridges: 2
Browse In Google Maps - Browse In OpenStreet Maps

Oregon City Half-Viaduct
HSR

Rough Distance: 0 Miles (0 Kilometers)

OR-99 Over Cliff along Willamette River in Oregon City: Clackamas County, Oregon, United States

Concrete Continuous Curved T-Beam, Fixed

Length: 336 ft. Main Span: 33 ft. Roadway: 50 ft. Main Spans: 11

Built 1940 By: Unknown and Oregon State Highway Commission

This is a half-viaduct that carries the roadway out over the edge of a cliff along the river.

Oregon City Bridge
HSR

Rough Distance: 0.1 Miles (0.2 Kilometers)

OR-43 (7th Street, Willamette Drive) Over Willamette River in Oregon City: Clackamas County, Oregon, United States

Metal Solid Ribbed Through Arch, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed

Length: 745 ft. Main Span: 360 ft. Roadway: 18.4 ft. Main Spans: 1

Built 1922 By: A. Guthrie and Company of St. Paul, Minnesota and Conde Balcom McCullough (Oregon State Highway Commission)

This unique bridge is classified as a steel arch bridge because it is a simple non-structural gunnite (shotcrete) that covers its structural steel arch.

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S - Dismantled and/or in storage. L - Severe loss of historic integrity due to alteration.

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