September 16, 2021
This project is another great example of how AIL’s Box Culvert geometry is so well-suited to many stream crossing projects in our area. Whether made from our Super-Cor Structural Steel Plate or our corrosion/abrasion-resistant Dur-A-Span, you will find our Box Culverts all across the Province. One community installed six of them over a 24-year period.
Box Culvert offered open-flow hydraulics, low-rise and protective coating
In this case, the Newfoundland and Labrador Department of Transportation and Infrastructure (NL DTI) was replacing an existing double-tee concrete bridge in Mutton Bay and needed a wide span structure that would meet the hydraulic requirements but still have a low enough rise to maintain the existing road grade.
A 14 m span x 3.1 m rise Super-Cor Box Culvert with protective coating and our MSE Precast Panel Wingwalls fit the bill just perfectly.
Many similar box culverts installed in NL
We worked closely with NL DTI during the design stages and gave them a good idea of a budget and supply timelines. We also made sure we had good communication with our Key Account, Farrell’s Excavating, so they could plan their construction schedule.
All parties very happy with new Box Culvert stream crossing
Southern Construction did the actual installation, having done several similar structures with us in the past, including another coated Super-Cor only structure just a few kms away in Trepassey. The project went great — all parties were happy with the end result and we continue to work with NL DTI on future bridge replacement designs.
“AIL’s coated Super-Cor Box Culvert was the perfect solution for this low-grade/high-flow coastal application. It was quick to install and will last for many decades of rugged Newfoundland weather and storm events.”
—Justin Constantine, Farrell’s Excavating
Take a quick drone-video tour of this new Super-Cor Box Culvert stream crossing with MSE Precast Panel Wingwalls.
Photo Gallery
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Old double-tee concrete bridge in need of replacement -
First Super-Cor ring with CIP headwall anchors -
First Box Culvert ring lifted into place on prepared footings -
Second Box Culvert ring attached in sections -
Box Culvert assembly completed in five days -
Precast Panel wingwall installation -
Wingwall installation and backfilling took ten days -
Protective coating extends life in coastal location -
New Box Culvert bridge replacement nearing completion -
Job site near ocean had brackish water chemistry
