The first ramps at the Interstate 90/State Route 18 diverging ... The Washington State Department of Transportation (WSDOT) has been working to improve safety and traffic flow at the interchange ...

Washington State’s Department of Transportation has been hard at work with its I-90/SR Interchange Improvement Project, which is set to add a diverging diamond interchange off I-90 and two new lanes ...

“We’re really hoping to see a drop in speeds in this area," said Kyle Miller, WSDOT's manager for the speed safety camera program. Along with the Washington Traffic Safety Commission and ...