Metrolinx has provided an update:
With grading, new pedestrian sidewalks, paving activities, and the installation of lighting complete, crews have finished the final touches of a major engineering achievement in Mississauga South: the new QEW highway underpass. Beginning Friday, December 19, 2025, the underpass is ready to safely accommodate northbound traffic along Hurontario Street underneath the QEW.
The concrete underpass was built and pushed into place using hydraulic rods, an innovative construction methodology known as box-jacking. This marks the first time this methodology has been used in Ontario.
With northbound traffic now permanently diverted through the new underpass, the former northbound lanes will support the future construction of the light rail guideway underneath the highway.
