Firefighters clean up the scene of a one-vehicle accident on Route 422 Sunday.

BUTLER TWP — The man behind the wheel of a Ford pickup truck that crashed into a guard rail on Route 422 walked away from the scene unharmed, firefighters said.

The truck, driving westbound near the North Duffy Road overpass around 6 p.m., ended up on its side and on top of a guard rail.

The Butler Township Station 3 and Mercer Road fire departments were dispatched to the scene, but arrived to find the driver had managed to get out of the vehicle without assistance and was OK.

Traffic on the road was restricted for about an hour while the vehicle was towed and the scene cleared of debris.