Route & commercial vehicle restrictions

Restrictions and requirements for oversize and overweight commercial vehicles operating on Washington state roadways. Commercial vehicle drivers are responsible for verifying route restrictions, overhead height clearances, and other requirements.

Oversize restrictions
Night closures
Lane closures

Bridge clearance

Check for restrictions and overhead clearance on your route.

Current restrictions

Restrictions for oversize/overweight vehicles on state roadways, bridges and structures.

Chain requirements for vehicles over 10,000 pounds

Tire chain requirements for vehicles over 10,000 pounds gross vehicle weight (GVW). WAC 204-24-050 (2) (f).

Curfew hours & holiday restrictions

Days when travel is restricted: Vehicles operating under special permit for overweight/over dimensional, except as provided for in Washington Administrative Code (WAC 468-38-075), may be restricted from the state highways on the holidays.

Emergency vehicles posted bridge restrictions

Emergency vehicles posted bridge restrictions list for Emergency Vehicles that are above the listed limits for posted bridges and structures.

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Learn more about work zone safety

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.