THE CONCRETE BRIDGE MAGAZINE

SUMMER 2011

ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.

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The team that carried out Phase 2 of the State Route 519 (SR 519) Intermodal Access Project managed to please a diverse array of concerned stakeholders by completing a complex, intermodal, $84.4 million design-build project 13 months ahead of schedule. Threading the Space Needle SR 519 is located in a fully-developed, congested urban and industrial area in downtown Seattle. To complete the connection between the I-5/I-90 interchange and the Seattle waterfront, the project team had to weave its way through numerous stakeholders and multiple transportation modes. The complications included Seattle's stadium district (SAFECO Field, Qwest Stadium, and the Qwest Event Center); the waterfront district (Port of Seattle and Washington State Ferry at the Colman Dock); light, commuter, and heavy freight rail tracks; and a King County Metro R yerson bus base. Virtually defining intermodalism, this area epitomizes the challenges that occur whenever modes meet. When the Seattle Mariners baseball team or the Seattle Seahawks football team play a home game, 50,000– 67,000 fans fill either stadium. Before the benefits of the SR 519 project were realized, those fans had to cross five sets of railroad tracks to get to or from the stadium. Add children and excited fans to that mix, in a locale where rain is frequent, and the safety risks grow. A s i f p re s s i n g s a f e t y a n d t r a ff i c concerns weren't enough, another factor weighed heavily on the project team. A solution had to be completed i n a d v a n c e o f i m m i n e n t a r e a megaprojects, especially the $3.1 billion Alaskan Way Viaduct project. The SR 519 project required the design and construction of two completely separate structures. profile SR 519 INTERMODAL ACCESS PROJECT / SEATTLE, WASHINGTON BRIDGE DESIGN ENGINEER: AECOM, Seattle, Wash. PRIME CoNTRACToR: Kiewit Infrastructure West Co., Federal Way, Wash. PRECASTER : Concrete Technology Corporation, Tacoma, Wash., a PCI-certified producer awards: 2010 PCI Bridge Design Award, Best Bridge with Spans between 76 and 150 ft; 2011 American Council of Engineering Companies National Silver Award in Transportation; 2011 Associated General Contractors Build Washington Award—Construction Excellence; 2011 American Public Works Association National Public Works Project of the year by Richard Patterson, AECOM Steel-less in Seattle: Concrete Solutions for SR 519 Phase 2 The Atlantic Ramp and Royal Brougham Bridges This panoramic view shows the SR 519 Intermodal Access project site curling around Safeco Field. Photo: ©2010 sky- pix.com. Atlantic Ramp Bridge Royal Brougham Bridge 42 | ASPIRE , Summer 2011 Book_Sum11.indb 42 7/1/11 10:00 AM

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