The I-405 Bellevue to Lynnwood Widening and Express Toll Lanes project, which began construction in 2012, will add strategic capacity in the north end of the I-405 corridor.
This project will add one new lane between NE 6th Street in Bellevue and SR 522 in Bothell and convert the existing carpool lane to an express toll lane. Together, these two lanes will form a dual express toll lane system.
Farther north, the existing carpool lane between SR 522 and I-5 will be converted to a single express toll lane.
The map below shows the future complete system in Option 4, which was selected as a viable option by the 2009 I-405/SR 167 Executive Advisory Group.