Traffic is backed up in Delaware County after a crash involving a vehicle and tractor trailer Thursday morning.
It happened around 11 a.m. in the southbound lanes of I-476 in Radnor Township, just south of Exit 13.
Chopper 6 was above the scene where you can see a sedan became wedged under a Walmart tractor trailer.
Police say a female driver of the sedan was pulled out of the car…