John Hennessy III,
P.E.
A picturesque, three-arch bridge replaces a deteriorating 1925-era structure that was threatened by an encroaching hillside. The project team incorporated advanced seismic resilient bridge components and innovative landslide mitigation systems to stabilize the hillside. They also trimmed a year off the construction schedule by shifting the original steel deck truss to one side using hydraulic jacks, allowing the bridge to remain in service during construction.
View this complete post...It’s been there for over 87 years. But on January 19, 2013, the Sellwood Bridge was moved, 20 feet on the East and 60 feet on the West, to form a temporary span while a new bridge is constructed on the site of the old. – Mike Lloyd on YouTube
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