So, what exactly is a semi-trailer? It's a type of trailer ... gravel, or scrap metal, dump trailers are the go-to choice. These trailers are equipped with hydraulic lifts that tilt the trailer ...

Dump trailers come in a few basic configurations: semi-trailer end dumps, bottom dumps, side dumps, pups and transfers. While regional weight and axle spacing regulations often determine the best ...

The salt that the dump truck had been hauling ended up spilling off the Eisenhower overpass onto Route 83 below, state police said.