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When the Ministère des Transports Quebec (MTQ) required a temporary detour solution for their bridge replacement project on Autoroute 40, near Berthierville, a heavy-duty Algonquin Bridge System filled the gap.

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Cantilevered launch from one side without lifting equipment
The launch was executed from one side using a fully-cantilevered sequence with a 10-bay launch nose. When all was ready, on-site equipment nudged the structure across the river to the opposite side.

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First of many deployments for the MTQ
The contractor, Roxboro Excavation Inc., erected and launched the bridge with guidance from Algonquin’s on-site advisors. The steel decking and parapet systems were installed prior to launch, in order to reduce the amount of work done over the river.

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The MTQ will own the Delta system after this deployment, and will be able to reconfigure and redeploy it for future projects. It is designed with a minimum life of 25 years with an average traffic of 13,000 vehicles per day at a speed of 70 km/h.

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Project-at-a-glance
Project Name: MTQ P-09806 Detour Bridge
Location: Berthierville, QC
Owner: Ministère des Transports Québec
Designer (Consortium): CIMA+ / Dessau
Contractor: Roxboro Excavation Inc.
Application: River Crossing Product: Heavy-duty Algonquin Modular Panel Detour Bridge
Dimensions: span 67.5 m, width 8 m (two-lane)