Washington State Department of Transportation
KPFF Consulting Engineers
I-90 Snoqualmie Pass project widens the highway from two to three lanes in each direction at the 3,022 foot summit of Snoqualmie Pass through the Cascade Mountain range. The scope of work includes straightening three miles of roadway to eliminate several unsafe curves and constructing an 1,100-foot bridge over the lakeshore, a 170,000-square-foot mechanically-stabilized earth wall, and 4,600 linear feet of drainage.
2020 ENR Northwest Best Project Award (Highway/Bridge)
2020 ACEC Washington Award of Excellence (Platinum)