Study Overview

Highway 404 is a major inter-regional connection within the Greater Toronto Area (GTA) that continues to be an important connection for communities in the Regional Municipality of York.

Within the project limits, the existing Highway 404 is a six-lane divided urban freeway with a posted speed of 100 km/hr. Interchanges currently exist at Highway 7, 16th Avenue, Major Mackenzie Drive, Elgin Mills Road and Stouffville Road. In addition to the existing underpass at 19th Sideroad, a new mid-block crossing over Highway 404 (underpass) north of Highway 7 is under construction by the Regional Municipality of York.

The highway cross section consists of three lanes in each direction plus auxiliary lanes, and an open wide median. The purpose of this assignment, among other associated improvements, is to expand the High-Occupancy Vehicle (HOV) lanes northerly to Stouffville Road. The widening will be occurring within the existing median between the northbound and southbound lanes.

This scope of work will be produced in multiple contract packages.