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Winter Driving Brochure
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I-90 truck chain up
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Ice and Snow - Take it Slow
See live views from WSDOT's mountain pass cameras.
View more WSDOT photos on Flickr.
See WDOT winter weather tips on YouTube.
Cold Weather, Hot Topics
Check out WSDOT's
new chain up requirements
on westbound I-90 / Snoqualmie Pass for trucks over 10,000 pounds.
Prepare for winter driving.
to the most-asked tire and chain questions.
WSDOT on social media
for mountain pass, traffic reports and other winter travel information.
email or text
Protect yourself and your passengers. Allow extra time to reach your destination during inclement weather. It takes only one unprepared or careless driver to slow or stop traffic.
Do not be that driver who shuts down the road.
Drive for conditions
– slower speeds, slower acceleration.
Do not use cruise control.
Four-wheel and all-wheel vehicles
do not stop or steer better
Leave extra room
between your vehicle and the vehicle in front of you. And remember, the larger the vehicle, the longer the stopping distance.
when approaching intersections, offramps, bridges, or shady spots.
If you find yourself behind a snowplow,
stay behind it until it is safe to pass
. Remember that a snowplow driver has a limited field of vision. Stay back (15 car lengths) until you’re sure it is safe to pass or until the plow pulls off the road.
On multi-lane roadways, snow plows often need to clear the center, throwing snow, ice and slush into nearby lanes. If approaching an on-coming snow plow,
slow down and give the plow a little extra room
Slow down and
be extra cautious near the chain-up and removal areas
. There are often people out of their vehicles.
Most of the time, the pass is closed to remove blocking vehicles. WSDOT also closes the road for:
: When possible avalanche control work is scheduled at night when traffic volumes are low. WSDOT attempts to provide advance notice, but in an emergency, it’s not always possible.
: If there is heavy snow in a short amount of time, road crews may close the pass to clear ice and snow from the travel lanes.
Traffic & Cameras
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