A tractor trailer rollover has closed the southbound 406 in St. Catharines.
The truck rolled and its load of steel coils spilled onto the highway right under the Burgoyne Bridge near Westchester.
OPP say it happened at the curve, which has a speed limit of 80km/hr, and charges are pending against the driver.
No one was hurt.
The 406 SB will be closed at Fourth Ave. for several hours for the cleanup.