A Bridge Truss Travels Along a Portland River

In what could be the largest bridge ever moved, crews in Portland, Ore., moved the 1,100-ft. Sellwood Bridge. Jacks lifted the steel bridge right off concrete footings and slid it along a host of translation beams for use less than 100 feet away as a detour bridge. Crews will now build a new bridge in its place. Check out all the details of this intricate move in my Engineering News-Record article here.

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