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September 25, 2018

Stantec, Graham replace 1936 bridge on U.S. 12

Rendering provided by Stantec [enlarge]

Stantec and Graham Contracting are the design-build team that is replacing Wildcat Creek Bridge on US 12 east of White Pass, near Rimrock Lake, for the Washington State Department of Transportation.

The 150-foot crossing was built in 1936 and is showing signs of deterioration, Stantec said in a press release.

Work will include a large, buried precast concrete culvert to provide passage for fish and wildlife in this remote location. Retaining walls, paving, striping, signage and roadside restoration are part of the project.

Construction is set to start Friday and be mostly completed within a 17-day window. All the work will be done by early November, Stantec said.

Crews will work quickly to reduce impacts to the environment, traffic and the community. Stantec also said design and construction are being accelerated because the bridge is failing.

The total cost is about $5 million.

Using a culvert design, as opposed to a traditional bridge, is expected to save WSDOT about $1 million in maintenance costs over time.