Long-Span Continuous Concrete Girder Bridge Supported by Cables


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Title: Long-Span Continuous Concrete Girder Bridge Supported by Cables

Author(s): Conrad P. Bridges

Publication: Concrete International

Volume: 1

Issue: 5

Appears on pages(s): 42-50

Keywords: bridge decks; bridges (structures); cable. supported structures; segmental construction; post-tensioning; precast concrete; prestressed concrete,

Date: 5/1/1979

The newest and longest cable-stayed bridge in North America spans Washington State’s Columbia River, connecting the cities of Pasco and Kennewick. Built in an earthquake zone, this 2503 ft long structure has a segmental deck made from precast, post-tensioned 300 ton concrete segments. The deck is supported by steel cables over 1794 ft of the roadway’s length. These cables are anchored atop two pair of 250 ft concrete towers and along the edges of the bridge every 27 ft. [Author]