Project overview

The Southwest Calgary Ring Road will be between Highway 8 (near the Elbow Springs Golf Club) and Macleod Trail SE, including reconstruction of Glenmore Trail from Sarcee Trail to east of 37 Street.

The Southwest Calgary Ring Road includes:

  • about 31 km of new 6 and 8 lane divided highway with 14 interchanges
  • one road flyover
  • one railway crossing (flyover)
  • 49 bridges
  • one tunnel
  • 3 river crossings

The road is being built to accommodate traffic volumes projected for the next 30 years, which are estimated to be between 80,000 and 100,000 vehicles per day on some sections.


  • October 2021

    Southwest Calgary Ring Road opens to traffic on October 2, 2021.

  • July 2017

    Major construction started on the southwest section of the Calgary Ring Road.

  • Fall 2016

    The Southwest Calgary Ring Road project started preliminary construction.

  • June 2016

    Mountain View Partners was selected as the successful proponent.

  • September 2015

    Government of Alberta issued a Request for Proposals for the design and construction of the Southwest Calgary Ring Road project.

P3 agreement

The ring road is being built using a Design-Build-Finance-Operate (DBFO) procurement process. This method is considered the best option to ensure the road is built and open to traffic within project timelines. The DBFO model will also allow government to realize significant cost savings.

Read the project’s P3 agreement documents.



Connect with the Calgary District office for more information on the Southwest Calgary Ring Road:

Hours: 8:15 am to 4:30 pm (open Monday to Friday, closed statutory holidays)
Phone: 403-297-6311
Toll free: 310-0000 before the number (in Alberta)
Email: [email protected]

Alberta Transportation and Economic Corridors
Major Capital Projects: Southwest Calgary Ring Road
Willowglen Business Park
Main Floor, 803 Manning Road NE
Calgary, Alberta  T2E 7M8

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