WSDOT
Washington · I-90
Seattle → Snoqualmie Pass → Spokane → Idaho
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🌨 Road conditionsView
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📡 Official data sourcesView
Safety: Posted signs, law-enforcement instructions and carrier policies always take precedence.
Washington I-90 and Snoqualmie Pass winter travel
I-90 crosses the Cascade Mountains at Snoqualmie Pass, where snow and ice can change driving conditions quickly. Review connected WSDOT camera views and road alerts before taking heavy vehicles over the pass. Follow current official pass restrictions and posted traffic controls.
Related driver tools: truck weather radar, official camera directory, and live DOT/511 highways.
Always follow current official DOT/511 alerts, posted signs and carrier safety procedures; connected sources differ by state and may be delayed.