 Work began in October 1989 to twin the existing two-laned route between the Ojibway Parkway and Huron Church Road by building a second parallel roadway to serve as the eastbound lanes. Construction of a partial interchange at Matchette Road as well as an overpass of Malden Road was included in this project, which was completed in September 1990. The project to complete the expressway in the east — by twinning the route between Lauzon Parkway and the Windsor boundary east of Banwell Road — began immediately after; it was completed in late 1991. The overall cost of the expressway between Ojibway Parkway and Banwell Road, originally estimated (in 1967) at $ 55 million, was $ 115 million, out of which the province contributed $ 94 million.
