Alberta Transportation continues to move forward with development of the Southwest Calgary Ring Road. To accommodate construction of the new interchange at 162 Avenue SW, ENMAX Power Corporation (ENMAX) is required to relocate a portion of an existing 138 kV transmission line.
The project requires the removal of a section of an existing 138 kV transmission line and relocating a portion of it approximately 85 metres north of its current location with new laminate transmission poles including:
ENMAX plans to file an application with the Alberta Utilities Commission (AUC) in mid-May 2017. Subject to approvals being granted, ENMAX expects construction to begin in September 2017 with a proposed in-service date of October 2017.
The proposed single circuit transmission structures will be self-supporting laminate poles and will have a height of 23 to 32 metres (75 to 105 feet). The current wooden poles being replaced are approximately 20 to 22 metres (66 to 72 feet) in height.
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As construction of the new interchange overpass at Macleod Trail and 162 Avenue continues, work is also taking place to upgrade the intersection at Shawville Blvd. and 162 Avenue.
The upgrades include widening the roadway to accommodate dual-left turns, improving traffic flow and increasing the efficiency of the intersection for pedestrians, transit users and motorists. Crews are also revitalizing the pedestrian connectivity at the intersection to provide better accessibility to the pathways hat cross the overpass.
From the beginning to the middle of May, the closures and restrictions around the intersection include:
The project webpage www.calgary.ca/macleod162ave will be updated on a regular basis with details of the construction impacts.
April – May
June – August:
April – Fall
Note: Completion dates may be impacted by weather conditions
As work continues on the construction of the north bridge structure of the new interchange at Macleod Trail and 162 Avenue, some temporary closures and lane restrictions will take place overnight on Jan. 31 and Feb. 1, 2017. These temporary closures and lane restrictions are necessary to allow construction crews to erect girders for the north bridge structure. These closures will take place overnight from 9 PM to 5 AM.
January 31 Closures
February 1 Closures
Two-way east-west traffic and pedestrian and cyclist access will be maintained during this time on the current 162 Ave. bridge over Macleod Trail between Shawville Blvd. and Sunpark Dr.
Please also note that there will be lane restrictions/closures on Shawville Blvd. south of 162 Ave. from Jan. 23 – Feb. 5 as ENMAX completes utility work.
To learn more, please visit the Project Webpage.
Jan. 31 + Feb. 1, 2017: Temporary closures and lane restrictions will take place overnight from 9 PM to 5 AM to erect girders for the north bridge structure.
February – Fall 2017: Construction continues on north bridge structure and approach roads.
September 2017: Anticipated opening of new interchange.
Jan. 23 – Feb. 5: Lane restrictions/closures on Shawville Blvd. south of 162 Ave. as ENMAX completes utility work.
April – August 2017: Major lane restrictions begin at Shawville Blvd./162 Ave. intersection for improvements.
What is this project all about?
The City’s Transportation Department is building an interchange at Macleod Trail and 162 Avenue South. This interchange will be an integral part of The City’s overall transportation network that includes commuters, cyclists, pedestrians, transit users and High Occupancy Vehicles (HOV). The interchange will help to enhance Macleod Trail as a gateway to the City from the provincial highway network, and when complete, motorists will be able to travel Macleod Trail from Lake Fraser Gate to 194 Avenue without going through any traffic lights.
Why is the interchange being built now?
City Council has identified the West Macleod area south of Stoney Trail and west of Macleod Trail as a Priority Growth Area for the City. The interchange will help to facilitate this growth, as well as address existing traffic issues, and coordinate this project with the Alberta Government who is responsible for the construction of the Southwest Ring Road (Stoney Trail).
What are some of the benefits of the interchange?
Construction of the interchange and roadway at this location will:
Will there be impacts to the flow of traffic in the area during construction?
Yes. Construction on this project will result in a number of lane closures and detours. The City will do its best to mitigate these impacts to local businesses and commuting traffic during construction. See below for the construction schedule and 2016 detour plan.
What kind of interchange is being built?
After completing an analysis of the traffic flow at the intersection and evaluating several designs, it was determined that a Diverging Diamond Interchange (DDI) was the most appropriate layout for an interchange at this location. While the Diverging Diamond has been constructed in other parts of the world, this will be the first urban DDI in Canada.
How does the DDI work?
The diverging diamond interchange (DDI) is designed in such a way that the two directions of traffic on 162 Avenue will briefly cross to the opposite side of each other on bridges over Macleod Trail. This allows more effective traffic flow at the signalized intersections within the interchange, and enables left-turning vehicles to proceed without crossing opposing traffic. This design significantly reduces delay and improves efficiency compared to a more traditional diamond interchange.
Check out the videos on the project webpage to see how the interchange will work once it’s completed.
What are the other benefits of the DDI?
Benefits of the DDI include:
Who is doing the work?
What is the budget for this project?
The estimated cost for the project is $68 million.
The City of Calgary is proceeding with the permanent closure of the temporary right-out access onto Macleod Trail from The Boulevard Shopping Centre (which includes businesses such as the Landmark Cinemas and the Superstore).
The right-in access into the shopping centre from southbound Macleod Trail will remain open.
This closure allows crews to continue moving forward on the building of the interchange at Macleod Trail and 162 Avenue by starting the construction of ramps in the area. This is another step within the construction schedule to ensure that the interchange project remains on-track.
To learn more, please visit the Project Webpage.