A jackknifed semi-truck near milepost 103 in Olympia causes lane closures, impacting traffic on southbound I-5.

All lanes of southbound Interstate 5 are blocked in Olympia after a semi tractor-trailer jackknifed and crashed into a ...

A massive semi truck lost control on a crowded highway, causing a chain-reaction crash that left multiple vehicles damaged and traffic at a standstill as authorities rushed to contain the chaos.

FEDERAL WAY, Wash. (KOMO) — A semi-truck went off the highway Friday morning during rush hour and ended up about 200 feet off the road. Washington State Patrol (WSP) Trooper Rick Johnson first posted ...

While semi-trucks only make up about 5% of registered vehicles in the U.S., there are millions of them in the country. And with these vehicles averaging 45,000 miles every year, you'll find them all ...

Local Tecopa, California business owner said he’s never seen a semi truck drive on his property’s rugged roads.