Ontario Provincial Police responded to a tractor trailer rollover at the Highway 401 and Highway 3 roundabout in Tecumseh on Tuesday.
The 18-wheeler was reportedly hauling steel coil when its load shifted. Police say that caused the truck and tractor to flip onto its side.
The driver was not injured in the crash.
Lane restrictions were put in place for about three hours so the load could be recovered.
All lanes were re-opened around 1:30 p.m. and police say traffic is flowing normally.