T. Y . Lin International Group | Projects | Crooked River Gorge Bridge Photo Credit: Alan Brandt Photography T. Y . Lin International’s Crooked River Bridge is a landmark crossing over the Crooked River in eastern Oregon. The innovatively-constructed new concrete arch bridge crosses a dramatic basalt rock gorge almost 328 feet above the Crooked River. With a 410-foot arch span and a 6.5-foot-thick arch rib at the canyon rims that tapers to just 4 feet at the crown this 4 lane bridge leaps across the basalt rock canyon. The 79-foot-wide structure carries four lanes of traffic and was built in 28-foot segments. The arch span supports a concrete box girder that spans 20 feet between spandrel columns. T. Y . Lin International developed an innovative construction solution which integrated moder

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