The Ontario Provincial Police (OPP) say the Highway 400 ramps to the eastbound Highway 401 have re-opened after a tractor trailer rolled over just before 6 a.m. Monday.
OPP Sgt. Kerry Schmidt said the driver of the loaded transport truck has been charged with careless driving.
Emergency services said they transported two people with minor injuries to a local hospital.
OPP said closures on both northbound and southbound ramps from Highway 400 towards the eastbound 401 have now cleared about five hours after the crash initially occurred.
OPP are still investigating the cause of the crash.