The crash happened in the northbound lanes of Interstate 476 in Salford Township, Montgomery County north of the Lansdale interchange shortly before 1:00 p.m.
Two tractor trailers were involved in the original crash.
"It thought it was an airplane that hit me in the back. It was hard," said Victor Mejia. He was driving his blue big rig slowly up a hill when he was rear-ended by a lumber truck. The impact sent lumber flying, and the rig caught fire.
But that driver got out safely, and Mejia was not injured.
"I think this is my day. If I didn't have my seatbelt on, I would have broken my neck or something from the impact from the back," Mejia said.
Rebecca Wright from Susquehanna, Pa. and her children were in a minivan directly behind the two trucks.
"We're lucky we were not in the accident. I was the first car behind the accident in front of me. It was very scary, and I'm glad nobody was hurt and we were not involved," Wright said.
RELATED: Get real-time traffic information HERE
While workers were untangling the tractor trailers, rubber-neckers in the southbound lanes caused a five-car accident. Two people were hurt.
A third accident happened in the northbound lanes behind the original crash. No one was hurt.
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