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Introduction

As Thanksgiving travel ramped up across Washington State, Snoqualmie Pass turned into a challenging corridor of unpredictable winter weather. With snow, slush, and freezing temperatures colliding with one of the busiest travel periods of the year, drivers faced treacherous conditions and heightened risks. For many, it served as a stark reminder of the importance of preparing for winter driving and adhering to Washington’s traction and safety laws.

Early Winter Weather Brings Hazards to I-90

Snoqualmie Pass, a vital section of Interstate 90 connecting eastern and western Washington, saw early snow and slushy roads just as Thanksgiving travel surged. The Washington State Department of Transportation (WSDOT) issued a Winter Weather Advisory, warning of snow and freezing rain that could rapidly deteriorate driving conditions.

Travelers described the situation as a mix of light snow, wet pavement, and unexpected slush. For veteran pass drivers, it was familiar. For less experienced motorists, the conditions proved daunting. Regardless of experience, all travelers faced the same legal expectations on the mountain pass.

Washington’s Traction Laws and Winter Driving Requirements

Washington law mandates specific traction requirements during severe winter weather:

  • Chains Required Signs: When these signs are activated, all vehicles must use chains unless exempted (e.g., AWD/4WD vehicles with proper tires).
  • Studded Tire Regulations: Legal for use from November 1 to March 31.
  • Failure to Comply: Ignoring traction device requirements can result in fines and liability in accidents.

Under RCW 47.36.250, WSDOT has the authority to restrict highway use based on vehicle equipment and conditions. Drivers who ignore posted traction advisories may not only face citations but also be found at fault in the event of a collision.

Road Safety and Driver Behavior

While WSDOT crews were out in force plowing and salting the roads, the biggest variable remained driver behavior. Officials noted that many of the delays and crashes were caused not by the snow itself, but by drivers unprepared for winter road conditions. Spinouts, excessive speed, and failure to follow traction rules are common causes of backups and collisions on I-90.

Truck driver Scott Baker emphasized the dangers of overconfidence: “A lot of people, they’re not really prepared. They come up here in a rear-wheel drive car with bald tires.”

Drivers should also be aware of the legal implications of at-fault accidents in poor weather. Negligence in winter driving—such as ignoring traction requirements or speeding in icy conditions—can significantly affect personal injury claims or insurance liability.

Best Practices for Thanksgiving Pass Travel

To navigate Snoqualmie Pass safely during holiday travel:

  • Check WSDOT Pass Reports before departure
  • Equip proper winter tires or carry chains
  • Follow posted traction requirements
  • Drive slower than the speed limit when conditions demand
  • Maintain extra following distance

Call to Action

If you’ve been involved in a winter driving accident or cited for a traction law violation, you may need legal guidance. Contact Blanford Law today at ken@blanfordlaw.com or 253-720-9304 for advice tailored to your situation.

Additional Resources