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.
This project was complete in the fall of 2019.
Milestone
Summer 2015
Construction began
Fall 2019
Project complete
There are currently no maps or drawings for this project.
There are currently no related links for this project.