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Crooked River Gorge Bridge

Terrebonne, Oregon

Market Sector

Bridge

Type

Arch

Services Provided

Design, Construction Phase Services, Construction Engineering and Inspection

Region

Americas

In The News

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 modern cable-stayed technology with classic concrete arch construction techniques. Steel cables attached to 184-feet-high temporary stay towers suspended segmental travelers as each segment was cast, moving from the canyon rims towards the center. The segmental construction of a concrete arch at a limited-access, deep gorge site was new to the U.S. bridge market.

Awards
Design Award, 2002
Concrete Reinforcing Steel Institute (CRSI)
National Recognition Award, 2001
American Council of Engineering Companies (ACEC)
Golden State Award, 2001
Consulting Engineers and Land Surveyors of California (CELSOC)
Award of Excellence, 2000
Portland Cement Association (PCA)