Highway 427 Expansion

Project Type:
DBFM - Design Build Finance Maintain
Infrastructure Type:
Contract Value:
$616 million
Estimated Value for Money:
$103 million

About the Project:

  • Extending Highway 427 is a key priority in addressing the efficient movement of people and goods within the context of the province's Growth Plan for the Greater Golden Horseshoe.


  • Request for Qualifications:
    Jul 13, 2015
  • Short-list Bidders Selected:
    Nov 30, 2015
  • Request for Proposals:
    Mar 03, 2016
  • Winning Bidder Selected:
    Jan 25, 2017
  • Construction Begins:
    May 01, 2017
  • Construction Ends:
    Sep 09, 2021

Latest News


The Highway 427 expansion project includes:

  • A new 6.6 kilometre extension from Highway 7 to Major Mackenzie Drive with
    • eight lanes from Highway 7 to Rutherford Road
    • six lanes from Rutherford Road to Major Mackenzie Drive, and
    • three interchanges: Langstaff Road, Rutherford Road and Major Mackenzie Drive
  • A 4 kilometre road widening from Finch Avenue to Highway 7
    • from six to eight lanes, from Finch Avenue to south of Steeles Avenue
    • from four to eight lanes, from south of Steeles Avenue to Highway 7
  • Managed lane infrastructure is included in the project to improve traffic flow

Community and Green Benefits

  • The Highway 427 extension supports local and regional growth planning strategies and is part of the Province's transportation objectives for the 2006 Growth Plan for the Greater Golden Horseshoe.

Economic Benefits

  • The Highway 427 extension provides economic benefits to the province by offering an enhanced freeway route into York Region, the Vaughan Business area and the CPR Vaughan Intermodal Facility.

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