A multiple vehicle accident snarled traffic on Interstate-80.
It happened just after one this afternoon near the 292 interchange. Authorities say Department of Transportation crews were signaling drivers to change lanes so that they could do some patch work on the road.
Traffic began to slow down, then a tractor trailer rear-ended a travel trailer being pulled by a pick up truck. The pick up flipped over and police say that caused a chain of collisions involving four tractor trailers, one pick up truck and a mini-van.