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I-90 Snoqualmie Pass East (SPE) Project – What’s been accomplished so far?

Crews have completed the first two phases of the I-90 Snoqualmie Pass East Project.

Hyak to Keechelus Dam – Phase 1
Phase 1 covers five miles from Hyak to Keechelus Dam. The
2005 Transportation Partnership Account provided $457 million to
widen I-90, build and replace bridges including two new avalanche
bridges, stabilize rock slopes and expand chain-up and chain-off
areas. Construction started in 2009. The first three miles was
completed in 2013 and the remaining two miles is scheduled to
be complete in 2019.

Keechelus Dam to Stampede Pass Interchange – Phase 2
Phase 2 covers two miles from Keechelus Dam to the Stampede Pass
Interchange. Project savings from Phase 1 provided $108 million to
widen I-90, build and replace bridges, stabilize rock slopes and build
the first wildlife overcrossing (pictured below) in the project corridor. Construction started in 2015 and completed in 2019.

I-90 Snoqualmie Pass East overcrossing