Highway 401 Expansion from Mississauga to Milton

completed

The project involved widening and reconstructing 18 km of Highway 401, one of North America's busiest corridors, from Mississauga to Milton, Ontario. The expansion increased highway capacity from three to five lanes in each direction, with some express/collector sections reaching six lanes. The project used innovative techniques such as on-site recycling of over 850,000 tonnes of materials and digital twin technology, and was delivered using a design-build-finance (DBF) model achieving 19.5% cost savings compared to traditional methods.