sentences:  During the summer of 2011, over 2.7 km worth of lanes were restored, repaved, and returned to safely accessible condition for larger vehicles.In June 2007, the Quebec government announced the demolition and reconstruction of the structure, which was projected to be complete in 2016.The announcement came four years after a study on the interchange showed the Turcot structure was crumbling, with reports of concrete slabs up to one square metre falling from the overpasses.