The Washington State Department of Transportation (WSDOT) will begin construction on the Interstate 90 Ramp Project at Exit 25 in October 2019. It is scheduled for completion before the end of 2019 (weather dependent).
The current on-ramp will be used for those entering westbound I-90 from State Route 18.
The new on-ramp will be built in the decommissioned weigh station area at Exit 25. It will create a free right-turn lane protected by a traffic island for those entering westbound I-90 from Snoqualmie Parkway.
There will be traffic meters for both ramps before they merge, which will be activated during high-commute times.
On October 18 or the following week, road work will begin on Snoqualmie Parkway and the westbound ramp to I-90. The project will start with shoulder closures along Snoqualmie Parkway. As the project progresses, there will be lane closures on Snoqualmie Parkway from 9:00 a.m. – 3:00 p.m. as needed and ramp work from 10:30 a.m. to 4:00 p.m.