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Tilikum Crossing; Bridge of the People Portland’s newest bridge, the largest transit bridge in the U.S., uses dramatic design to connect
David Goodyear, senior vice president and chief bridge engineer for Tilikum Crossing, says that this “design- build project is the jewel of the Portland-Milwaukie Light Rail Project, a 7.3-mile transit link from down- town Portland to Park Avenue in Clackamas County.” Goodyear is a pioneer in cable-stayed bridge design and construction. He has more than 36 years of ex- perience in the design and construction of concrete, steel, segmental, and cable-stayed bridges. He has led the design for major bridge engineering projects ranging from cable-stayed bridges to signif- icant arch structures and explains that TYLI’s scope of work consisted of the design engineering of the el- evated structure, along with roadway improvements at the east side touchdown, two 160-foot-tall pylons, drilled shaft foundations, direct-fixation track, and systems integration. “We are tremendously pleased that T.Y. Lin International had the privilege of designing such an important, visually-iconic bridge for Portland, ‘The City of Bridges.’”
By Liisa Andreassen Correspondent
A t 1,720 feet long, with a main span of 780 feet, the new Tilikum Crossing, touted as the “Bridge of the People,” is the largest transit bridge in the U.S. and T.Y. Lin International (San Francisco, CA), a more than 2,500-person full-service infrastructure consulting firm, served as the engineer of record. A transit-only, cable-stayed bridge spanning the Wil- lamette River in Portland, Oregon – the nation’s “City of Bridges” – will serve light rail, streetcars, buses, bi- cycles, pedestrians, and emergency vehicles, but no private or commercial vehicles. The concrete bridge is a hybrid between a tradition- al cable-stayed layout and an extradosed bridge, with two towers and two landside piers. Two 14-foot-wide bicycle-pedestrian paths flank each side of the bridge, with pedestrian belvederes at the towers. The bridge links the city’s South Waterfront, home to an Oregon Health & Science University campus and the Portland Aerial Tram, to the up and coming Central Eastside, known for visitor favorites like the Eastbank Esplanade and Oregon Museum of Science and Industry, plus some of the city’s best dining and nightlife.
David Goodyear, Sr. Vice President T.Y. Lin Interna tional
THE ZWEIG LETTER NOVE
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