 The freeway has also been expanded with an extra lane northbound between Perth and Hutton Street, in conjunction with works to increase the capacity of the Graham Farmer Freeway tunnel. Works progressed in two stages, with Vincent Street as the midpoint. As part of the project, the overpasses at Powis Street, Vincent Street and Scarborough Beach Road have been widened. An additional slip lane has been constructed, from Graham Farmer Freeway's Loftus Street exit ramp to Mitchell Freeway northbound, to access Vincent Street without changing lanes to the left lanes of Mitchell Freeway northbound. The project commenced in February 2013 and was completed in December 2013.
