Project overview
Phase 2 was part of a 15-mile corridor improvement project to improve safety and reliability and reduce congestion along I-90 from Hyak to the Easton vicinity.
What to expect
Construction for this project phase is complete.
Phases 1 and 2 of the I-90 Snoqualmie Pass East project widens I-90 from four to six lanes, stabilizes rock slopes, builds bridges and connects wildlife habitats.
WSDOT increased capacity and improved safety by adding a new lane in each direction, replacing concrete pavement, stabilizing rock slopes, building wildlife crossings, straightening the roadway and adding new chain-up areas.
Safety
WSDOT improved the driving surface on I-90 by replacing the concrete pavement, straightening the roadway and adding new chain-up areas.
Congestion relief
WSDOT increased capacity by 50 percent in each direction to accommodate projected traffic volumes for the next 20 years by adding a lane in each direction.
Environmental
WSDOT minimized impacts to the environment and improved movement of wildlife.