A construction project to ease congestion at one of Washington’s busiest highway interchanges is nearing the finish line, but drivers should expect several more months of disruptions.
The I-90/SR 18 interchange project has already delivered improvements since the opening of a diverging diamond interchange last summer.
Marcus Humberg with WSDOT said the redesign, along with newly added lanes, has reduced the backups that once stretched onto I-90 during peak travel times and busy weekends…