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Historic Bridges: Ivan D. Merchant

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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Total Bridges Found: 1

Marquam Bridge
HSRNational HSR. Local HSR.
Click to visit page.
I-5 Over Willamette River in Portland: Multnomah County, Oregon, United States
Metal Cantilever 14 Panel Multiple-Type-Connected Warren Deck Truss, Fixed and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Length: 5,280 ft. Main Span: 440 ft. Roadway: 114 ft. Main Spans: 3
Built 1966 By: American Bridge Company of New York, New York and Ivan D. Merchant
This utilitarian mid-20th century truss bridge is noted for its unusual double-deck cantilever truss design.

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