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.
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. The City of Spokane Valley is also doing work on Mullan Road at the intersection of Mullan and Montgomery to the north. Depending on timing, additional traffic restrictions north of the westbound off-ramp may be in place at the same time.
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. These travelers will be instructed to use the adjacent Argonne Road bridge to cross over I-90.