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I-90 - Snoqualmie Pass East
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I-90 Snoqualmie Pass East, Avalanche Structures Final Supplemental Environmental Impact Statement and Record of Decision
Draft Supplemental Environmental Impact Statement
For Contractors - I-90 Project Information
I-90 - Snoqualmie Pass East - Project Handouts
2013 I-90 Construction handout (pdf 765 kb)
I-90 Snoqualmie Pass East Corridor handout (pdf 825 kb)
I-90 Environmental handout (pdf 1.27 Mb)
I-90 travel information handout (166 kb)
Bike Detour Map
I-90 Snoqualmie Pass East Project Detour Map (pdf 917.43 kb)
Environmental Documents
2013 I-90 Snoqualmie Pass East, Avalanche Structures Final Supplemental Environmental Impact Statement and Record of Decision
2012 I-90 Snoqualmie Pass East Avalanche Structures Draft Supplemental Environmental Impact Statement
2008 I-90 Snoqualmie Pass East Final Environmental Impact Statement and Section 4(f) Evaluation
2008 I-90 Snoqualmie Pass East Record of Decision
(pdf 574 KB)