September 1st, 2026

Oversize Load Rules WA Drivers Should Know

If you've seen giant oversize loads parked on the shoulder of I-5 during your morning commute, there's a reason—and it's not what you might think.

Oversize loads are banned from most Washington freeways during morning and afternoon commutes. Curfew zones exist in Seattle, Tacoma, Olympia, Vancouver, Kelso, and Spokane, with hours that vary by location. WSP Commercial Vehicle Enforcement Officer Andrew Stevens says these massive loads take up a full lane and then some—which would only make rush hour worse.

Chris Sullivan

Chokepoints