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Traction Advisories

Traction Tires Advised

Traction tires advised - oversize loads prohibited. Oversize vehicles may be restricted from roadways during severe weather conditions.

Traction Tires Required
Traction tires required - Passenger vehicles must use approved traction tires. Chains are required on all vehicles over 10,000 gross vehicle weight rating (GVWR), including large passenger trucks and SUV's over 10,000 GVWR.

Tire Chains Required
Tire chains required - except four-wheel/all-wheel drive* (as long as one set of chains is carried inside 4WD/AWD vehicle). *If the vehicle or vehicle and load are more than 10,000 pounds the 4WD/ADW exemption does not apply.

Chains required on ALL vehicles, even 4WD/AWD

Chains required on ALL vehicles, even 4WD/AWD.

Chain placement
On a front-wheel drive vehicle, you must install chains on the front two tires. On a rear-wheel drive vehicle, you must install chains on the rear two tires. 

Chain alternatives
If your vehicle can not accommodate chains, tire snow socks, are an approved alternative for passenger vehicles and those with five or less axles. These are textile tire covers, officially called "alternative traction devices."

Vehicles differ, so please check your vehicle's owner's manual or see what the manufacturer recommends whenever considering an alternative traction device. For more details, visit the Washington State Patrol's Vehicle and Equipment Requirements page.

Four-wheel/all-wheel drive vehicles are exempt from installing chains during "chains required" posting, but they must still CARRY a set of chains inside the vehicle in case conditions worsen to "chains required on all vehicles." See WAC 204-24-050.

View the Stevens Pass and Snoqualmie Pass map of chain up and off areas (pdf 50kb).