Lane closures coming to Mullan Road bridge over I-90 in Spokane Valley

Work beginning May 8 requires detours, extra travel time during closure

SPOKANE VALLEY – For the first time since its construction in 1975, the Mullan Road bridge is getting a much-needed facelift. Contractor crews working for the Washington State Department of Transportation will remove and replace the deteriorating concrete on the bridge deck, preserving the structure and providing a smoother ride to travelers for years to come.

“The need to repair is essential,” said Project Engineer Thomas Brasch. “There has been a patchwork of repairs over the years and the time has come to do more than the ‘band aid’.  Reinforcing steel is showing, and the existing patches continue to get bigger. Pushing off or doing nothing is not an option.”

Beginning Sunday, May 8, the Mullan Road bridge will be reduced to a single lane for the entire project, which is expected to last several months. Travelers can anticipate varying traffic control on I-90, which will at times be reduced to a single lane during working hours. Work will happen overnight, between 8 p.m. and 5 a.m., to limit inconvenience to travelers on Interstate 90.

Lane closures to the Mullan Road bridge over I-90 will allow crews to remove the concrete from the existing bridge deck and perform deck repair under the surface. Once concrete repairs are complete, crews will repave the surface.

Throughout the duration of the project, the bridge will be completely closed to those who bike, walk and roll. In addition, drivers who wish to access Argonne Road via the off-ramp from eastbound I-90 are encouraged to use alternate routes.

Eastbound I-90 Argonne Road off-ramp detour information

  • People traveling eastbound on I-90 to access exit 287 and Argonne/Mullan Road will be instructed with signage to use the Broadway Avenue interchange, take Broadway Avenue east then north on Mullan Road.
  • Drivers heading west on I-90 will still be able to use the Argonne Road exit.
  • Active transportation users will be detoured to use the adjacent Argonne Road bridge over I-90 just to the west.

Before heading out the door, travelers can find highway conditions on the WSDOT Travel Alerts page, mobile app and on the regional Twitter account.

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