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Jun 15

48 Avenue Bridge Update

Posted on June 15, 2018 at 9:00 AM by Ashton Ford

Since the last update, lots of activity has happened at the bridge project. Currently, PSA is working hard to install the new concrete foundations that will be used to relocate the existing signal lights at 53rd Street. As the concrete is being poured, Shelby Engineering is on site along with AMEC to test the concrete, assuring it meets the standards of safety expected by the City. The relocated signal lights will be slightly north of their previous locations, and will allow the construction of the new westbound lane on the north side of 48th Avenue.

On the east side of the bridge, the back wall has been completed, and the road space behind it is being built up to its new elevation. Similarly, progress has been made on the retaining wall adjacent to the Wild Rose Co-op. In a few weeks, once the retaining wall is complete, that team will move to the west side of the bridge to finish the second backwall.

Many may have noticed the large amount of earth being moved around on site. Much of PSA’s team is working hard to clear areas on site, making room for the delivery of the bridge girders. The girders are expected to be delivered in the middle of next week (around June 19th) from the off-site location where they were fabricated near Blackfalds. Once installed, the girders will span the length of the entire bridge, and will serve as the foundation for the roadway across the lake to be built on top of. In total, there will be 30 individual girders delivered.

The City would again like to thank citizens for their patience and cooperation during this project. If you have any questions or concerns, please contact the Engineering Department at 780-672-4428 or at

June 5 – PSA starting excavation of trench along north side of 48 Avenue (east of pedestrian underpass) for the planned installation of a new retaining wall. Because of the higher elevation of the roadway and sidewalk, it is necessary to install a retaining wall to ensure that the sidewalk and roadway do not fall into the nearby Wild Rose Co-op staff parking lot. The City would like to thank the Wild Rose Co-op staff for temporarily parking elsewhere while this retaining wall is being installed.

June 7 – PSA starting to form the foundations for the retaining wall.

June 14 – This picture was taken standing on the west side of Mirror Lake, looking north-east. Here, you can see both the completed east backwall (background) and the west backwall in progress (foreground), as well as the start to the increase in elevation of the eastern section of the roadway.

June 14 – PSA delivering new material to build up the roadway on the east side of the project.

June 14 – The concrete sub-contractor pouring the new foundation for the relocation of one of the signal lights at 53rd Street.

June 14 – PSA installing the retaining wall adjacent to the Wild Rose Co-op staff parking lot.

June 14 – The pedestrian underpass as PSA begins to build up the road base overtop of it.