Heavy trucks won't be permitted on Highway 15 south through the Turcot Interchange as of 11:30 Tuesday night, after cracks were found in the structure.

Trucks will not be able to access Highway 15 south toward the Champlain Bridge from the Decarie Expressway.

Transport Quebec said repairs will begin Wednesday and are expected to last at least until the end of January. Trucks will be banned until repair work is complete.

Trucks heading for the Champlain Bridge will be rerouted to Highway 20 west.