Macleod Trail / 162 Avenue S Interchange
Detour Phase 1
How DDI operates
Construction update - Dec. 5, 2016
Work has begun on the north side overpass of the new interchange and will continue throughout the winter months.
The south side overpass was completed and opened to traffic in October 2016. It will handle both east and west traffic while crews construct the north side overpass. The south side overpass also provides access for pedestrians and cyclists over Macleod Trail.
By using the south side overpass for east - west traffic, signal lights on Macleod Trail have been removed, allowing the north - south traffic to flow freely at this location.
Lane restrictions and detours are in effect as crews continue construction work. Motorists can use newly constructed ramps to access eastbound Sun Valley Blvd. and westbound 162 Avenue from southbound Macleod Trail.
The intersection at Shawville Blvd. may become congested for motorists traveling westbound on 162 Avenue since only two lanes are operational, one includes a shared through and left turn and other includes a shared through and right turn. Drivers may want to consider taking an alternate route.
Since this area is a construction zone, motorists are reminded to follow road signage and to reduce speed.
About the project
The interchange at Macleod Trail and 162 Avenue S 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 enhance 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 basketweave 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.
- 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
- Fall 2017: Anticipated completion of project
This project has resulted in significant road and pedestrian road restrictions and closures.
Along with opening Macleod Trail to be free flow, the City has now opened access ramps to eastbound Sun Valley Blvd. and westbound 162 Avenue from southbound Macleod Trail.
The intersection at Shawville Blvd. may become congested for motorists traveling westbound on 162 Avenue since only two lanes are operational, one includes a left turn and other includes a right turn. Drivers may want to consider taking an alternate route.
The City has appreciated the patience of area residents and businesses, and of the motorists who have had to deal with numerous detours and lane closures. We ask for continued understanding and patience from Calgarians as we work hard to finish the project in 2017.
Stakeholder communication and engagement has always been an important component of the Macleod Trail/162 Avenue Interchange planning process.
A total of three sets of 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.