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First-of-its-kind bridge project
Published:2020-07-24 Roads
First-of-its-kind bridge project DUVALL – Replacing old culverts that block fish passage is common in western Washington, but a project that begins July 26 on State Route 203 just south of Duvall is decidedly uncommon. This bridge will be the first of its kind on the West Coast. It will replace the culvert that carries Loutsis Creek. Contractor crews working for the Washington State Department of Transportation will use carbon fiber forms to build the concrete structure. The process has been used for a few years in the northeastern United States. The work will require a month-long closure in both directions of SR 203 just south of Big Rock Road from July 27 to August 26. By using this new method, crews expect to shave several weeks off the work. “Often building a bridge requires bringing in a large crane to place concrete girders, but these carbon fiber forms are light enough that people can handle them,” said Shawn Wendt, WSDOT’s engineer for the project. “We know this is a long time to close a highway thousands of people depend on each day, but traditional construction would take much longer.” Building with carbon fiber Plan ahead for travel on SR 203 Local traffic will be able to travel as far as Northeast 138th Street from the north and Duvall Park from the south. No one will be able to cross through the work zone once construction starts. Travel information on this and other projects on the @wsdot_traffic Twitter feed, the weekly King County construction update and through WSDOT’s mobile app. Improving conditions for salmon and other species
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