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 ...

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

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 ...