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May 25

48th Avenue Pedestrian Underpass Update

Posted on May 25, 2018 at 8:22 AM by Melissa Henderson

As you may have noticed, there has been a lot of activity this week. PSA began the excavation across 48 Ave on Tuesday May 22. This was to prepare for the installation of the pedestrian walkway underneath the new road. Wednesday morning (May 23rd) began with the delivery of the first box culvert pieces.

The box culvert installation took place for the rest of the day, and by the end of the day on May 23rd, PSA had installed 13 of the box culverts. As of this morning (May 25th), 17 pieces in total have been installed and an additional 5 pieces have been delivered to the site. In the end, the pedestrian walkway will be made up of 32 of these box culverts. To install all of the pieces, PSA predicts that it would take about three days in total. These three days may not be consecutive, as work will first be done with the back filling and weatherproofing of the current sections. Once this first portion is complete, a ramp will be installed over the box culverts so work can be continued on the east side of the bridge.

By the end of the project, PSA will install handrails along either end of the pedestrian underpass to ensure that trail users along 48 Ave do not accidentally fall down onto the lower trails.

Inside the box culverts, they are about 4 meters wide and 2.5 meters in height. This is over 8 feet of vertical clearance, which is the height of a typical house ceiling. The high clearance is to accommodate bike riders, as to not need to crouch down inside the tunnel. The 4 meter wide path is about one meter wider than the average trail in Camrose. This extra width is to allow for pedestrians to comfortably pass each other.

The slanted ends of the underpass are designed to let in as much natural light as possible into the walkway. Additionally, there will be a total of 16 LED lights installed, with 8 on either edge along its length.

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

excavation for pedestrian underpass
May 22 – PSA has started excavation across 48 Ave for the future pedestrian underpass.

box culvert delivery
May 23 – Delivery of concrete box culverts to site.

installation of first 2 pieces
May 23 – Installation of the first two concrete pieces at the north end of the pedestrian underpass. Note that the contractor is using a winch system to ensure that the concrete pieces are installed snugly together.

moving the rectangular piece
May 23 – PSA moving the first rectangular piece of the pedestrian underpass into place.

Installation of 9 box culvert pieces
May 23 (near the end of the day) – PSA has completed installation of the first 9 rectangular box pieces, in addition to the end pieces on the north end of the structure. PSA to continue excavation of soil material and the installation of the box culvert pieces in the days to follow.