Share this page Print

 

Macleod Trail / 162 Avenue S Interchange

Design plans Temporary Interchange How DDI operates FAQ document


Construction update – October 4, 2017

Canada’s first Diverging Diamond Interchange (DDI) was officially opened, August 13 at Macleod Trail and 162 Avenue in south Calgary.

View the video of the special event to celebrate the interchange opening.

There is still construction work to be completed this fall with temporary lane closures and road restrictions as the project moves toward full completion.

View the temporary restrictions associated with the interchange opening.

Routine daily lane closures will also continue to take place during off-peak hours along 162 Avenue and Sun Valley Blvd. to allow crews to complete concrete and landscaping work. Motorists are requested to obey all signage and remain aware that the interchange is still an active construction zone.

When using the new interchange, motorists are reminded that left turns from 162 Avenue to Shawville Blvd. are still possible when travelling westbound across Macleod Trail from Sun Valley Blvd. Drivers simply enter the dedicated lane with the overhead sign indicating Shawville Blvd. South. However, the dividing median for the left turn bay has been extended to prevent cars that exit from southbound Macleod Trail from crossing three lanes into the left turn bay. This new, permanent change, improves safety for all motorists by reducing the amount of weaving and lane-changing especially during rush hour.

Also, motorists on southbound Macleod Trail now have two options for accessing the Shawnessy shopping centre to the south. First, you can continue west on 162 Avenue and take the next left turn at Shawville Way. Second, the City has constructed a new dedicated access ramp from southbound Macleod Trail into the Shawnessy shopping centre. All you need to do is continue past the 162 Avenue exit and then take the next right under the overpass structure. Once you take the Shopping Centre exit, the lane will direct you into the south part of the shopping centre without having to go through any traffic lights.

View suggested alternate routes during the temporary restrictions.

Refer to City of Calgary Transit website, www.calgarytransit.com for information on bus detours.

See what the completed Diverging Diamond Interchange will look like. Check out the videos on this page on how to use this DDI.

About the project

The interchange at Macleod Trail and 162 Avenue S. is will be an integral part of The City’s overall transportation network, helping to enhance Macleod Trail as a free-flow gateway to the city from the provincial highway network. Construction of the interchange will enhances mobility for commuters, cyclists and pedestrians while accommodating access to surrounding businesses and services.

After completing an analysis of the traffic flow at the intersection and evaluating several designs, it was determined that the Diverging Diamond Interchange (DDI) was the most appropriate layout for an interchange at that location. This is the first DDI to be constructed in Canada.

This project includes:

  • an interchange at Macleod Trail and 162 Avenue which allows for free-flow traffic north and south on Macleod Trail underneath the interchange bridges
  • two bridges over top Macleod Trail (as part of the interchange) for east and west traffic on 162 Avenue and Sun Valley Boulevard
  • intersection improvements at Shawville Blvd. and 162 Avenue
  • a bridge structure to accommodate access for southbound traffic onto Shawville Blvd. (south end of area shopping centre)

The project is being coordinated with Provincial plans for the Southwest Calgary Ring Road (SWCRR). The prime consultant for the project is ISL Engineering and Land Services Ltd. and Graham Infrastructure LP is the general contractor.

Project timeline

  • Fall 2015: Completion of phase 1 construction
  • Early 2016 – Fall 2016: Construction of first two bridge/overpass structures
  • Fall 2016: Begin phase 2 of detour construction
  • Winter 2016 – Fall 2017: Construction of third bridge/overpass structure and associated roadworks
  • Summer 2017: Staged opening of interchange
  • Fall 2017: Completion of entire project

Project budget

$78 million

Impacts

Sunday, August 13 marked another milestone in the construction of the Macleod Trail/162 Avenue Interchange as Canada’s first Diverging Diamond Interchange (DDI) was officially opened and traffic is now flowing on the new DDI layout.

Additional closures and road construction will continue to take place this fall in order to fully complete the project.

View the temporary restrictions associated with the interchange opening.

Routine daily lane closures continue during off-peak hours along 162 Avenue and Sun Valley Blvd. to allow crews to complete concrete and paving work. Motorists are requested to obey all signage and remain aware that the interchange is still an active construction zone.

Pedestrians and cyclists are being re-routed to the north side of 162 Avenue/Sun Valley Blvd. where detour maps are posted along the pedestrian routes.

Refer to City of Calgary Transit website, www.calgarytransit.com for information on bus detours.

Communications

Stakeholder communication and engagement has always been an important component of the Macleod Trail/162 Avenue Interchange planning process.

A total of four public information sessions have been held related to this project. In addition, two special sessions for businesses in-and-around the future interchange took place in April 2015 and March 2016.

Please fill out the online form if you have questions or require more information.

Related documents