To engineer the replacement of five corrugated metal culverts with a 1,800 m diameter, located under the Dufferin-Montmorency highway in Quebec City, the MTQ hired the experts at Excavations Lafontaine, who paired up with the precast concrete division at Béton Provincial to complete this sensitive portion of the project.
Rusted and weakened over time, the metal culverts needed to be replaced with reinforced concrete culverts, extending their useful life to at least 75 years. Overall, the new commissioned structures needed to be 56.1 metres long, 6.0 metres wide and 4.5 metres high, with walls 500 mm thick: colossal structures, with pieces weighing nearly 36 tons each! No matter how advanced a technology gets, it is still often at nature’s mercy. Built along the inter-tidal zone of the Saint Lawrence River, this infrastructure overlooks a rich ecosystem of flora and fauna that depend on the changing tides.
Excavations Lafontaine and Béton Provincial had to use their experience and expertise to contend with the rhythm and characteristics of the Saint Lawrence tides. Pieces were placed upstream to downstream for some of the work, and some components had to be modified so that installation could be carried out in several phases. The precast concrete pieces had to be delivered to the worksite with extreme precision so that installation could take place within timelines determined by the tides.
This project was conducted for the Maritime Road Development Corporation in New Brunswick. It required the installation of a mobile batch plant to produce and deliver 90,000 m3 of precast concrete for the construction of the Jemseg River Bridge.
We have completed over a dozen paving projects for airport runways:
Opti-cadre and Ter-voile culverts: working together to support the Marsoui municipality
July 5, 2014 will forever be etched in the memory of residents of the small municipality of Marsoui: it was the day when a flood split the village in two, tearing apart its sewage and canal system. Béton Provincial’s Opti-cadre was used with Ter-Voile retaining wall technology, another Béton Provincial exclusive product.
The team in place had to build 62 elements weighing over 20 tons, and use more than 32 trucks to deliver the pieces within the installation timeline set by the client. Thankfully, the effort paid off: the new structure can withstand natural disasters, and will last for over 75 years. The new culvert allows owners who were impacted by Arthur to regain the parcels of land they lost due to the rupture. Marsoui has gotten a new start, and Béton Provincial is proud to have been a part of the effort to give these residents back their enviable living environment.
We have completed over a dozen paving projects for airport runways:
We have completed over a dozen paving projects for airport runways:
