• Project

I-90 Mullan Road Overcrossing Bridge Deck Repair

Beginning Sunday, May 8, starting at 7 p.m., crews will close the eastbound I-90 at Argonne Road in Spokane Valley for the duration of the project. Drivers will be detoured to the Broadway Avenue interchange to the west. The ramp closure will remain in place throughout the duration of the project.

At the same time, northbound Mullan Road over I-90 will be reduced two lanes for crews to begin the hydro-demolition of the bridge deck.

Project overview

This project will rehabilitate the deteriorating concrete bridge deck for the Mullan Road Bridge over I-90. Crews will remove approximately 1.5 inches of existing concrete through hydro-demolition. Once removed, existing reinforcing steel that is exposed will be evaluated to determine the need and extent of repair. Once complete, a new 2-inch modified concrete surface will be constructed to preserve the bridge deck for years to come.

March 2022 - June 2022
Project status
Not started
$2.41 Million
Project hotline

What to expect

The Mullan Road overcrossing of I-90 carries three lanes of northbound traffic while the Argonne Road overcrossing of I-90 carries southbound traffic. Once construction begins on Mullan Road, the bridge over I-90 will be reduced to one lane near Mission Avenue to the south and the westbound I-90 off-ramp to the north.

In addition, the eastbound I-90 off-ramp at exit 287 to Argonne/Mullan Road will be closed for the duration of the project. Eastbound motorists wishing to use this exit will be instructed with signage to use I-90, exit 286 at Broadway, to access Argonne/Mullan Road. 

The bridge will be closed to those who bike, walk and roll. Travelers will be directed to use the adjacent Argonne Road bridge to cross over I-90.

Project location for the Mullan Road bridge deck repair over I-90.