tractor trailer

Container Loaded with Cows Falls Off Semi-Truck on I-90The Washington State Patrol says a container loaded with cows fell off a tractor-trailer and onto Interstate 90 Saturday, killing at least some of the animals.
Seattle Crash Snarls I-5 Traffic for Miles The Washington State Patrol says a multiple-vehicle collision involving a tractor-trailer rig closed all four southbound lanes of Interstate 5 in downtown Seattle for about two hours on Thursday afternoon, causing an eight-mile backup.