Description
The state’s first transportation design-build project -- a $23 million overpass that directs state Route 500 traffic over Thurston Way in Vancouver. The project is similar to the nearby Route 500 overpass that spans over Andresen.
The bridge involves a precast girder design, which has the least impact on the public, allowing more lanes of traffic to remain open during construction. The design will employ 12 prestressed concrete girders. Each 208-foot-long girder will comprise three components spliced together.
The goal of the project is to improve safety, create better connections to existing roads, improve pedestrian and bicycle connections, increase capacity of the intersection and decrease congestion.
Using the design-build process is expected to: save time because the design and construction phases overlap; allow innovation because the designer and contractor work closely together; and transfer risk from WSDOT to the design-build team because the team is responsible for errors that affect construction costs.
Design-build contractor:
Max J. Kuney Co., P.O. Box 4008, Spokane, WA 99220-0008, (509) 535-0651
Engineers:
Entranco, 10900 N.E. Eighth St., Suite 300, Bellevue, WA 98004-4405, (425) 454-5600
Kristen Betty & Associates Inc., 700 108th Ave. N.E., Suite 201, Bellevue, WA 98004, (425) 455-9720
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Other Participants
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AMEC
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Apply-A-Line
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Concrete Technology Corp.
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Davis Landscape Nursery Inc.
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Elcon Corp.
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KLB Construction
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Lakeside Industries
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Pacific Rock Products
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Parametrix Inc.
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Petersen Brothers Inc.
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White Shield
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