Those boxes you'll find underneath the cab and trailers of larger trucks have a very useful purpose. Here's what they're for and what you'll find in them.

Dash cam footage in Denham Springs shows 18-wheeler colliding with a bucket lift that electrical worker dangling upside down.

Video obtained by USA TODAY shows a semi-truck crash into a bucket truck while a maintenance crew member was doing repairs.

One giant storage unit. One full semi truck. A mountain of total mystery. We had no idea what we were getting into—and what ...

DPS said the driver does not have serious injuries, but the truck and the trailer that was attached to it was heavily damaged ...

KING COUNTY,Wash. — A semi-truck carrying 10,000 bottles of Woodinville Whiskey tipped over on Interstate 90 Friday morning. Washington State Patrol says speed was a factor. It happened around 7 ...

Cummins is working on a hydrogen powertrain that has the potential to stir up the world of semi trucks, and it's being ...