A wheel loader and seven excavator at work demolishing a massive scection of the bridge
Seven excavators crushing concrete and two employees and a water canon spraying water to contain dust
Eight excavators crushing concrete from the bottom and from the top of what is remaining from the bridge center support structure
Seven excavators equiped with a shear doing demolition work
View of the bridge before the beginning of work, during traffic hours
Four Démex excavators equiped with hydraulic hammers and buckets busy demolishing bridge elements
Two Démex excavators busy demolishing a massive concrete section of the bridge
Two Démex excavators, one equiped with a concrete crusher and the other with a bucket to pile material
Environmental protection measure consisting in a fence made with a black membrane to control surface water flow
Démex PC 800 excavator at work with an employee spraying water to control dust emissions
A Démex excavator equiped with a hydraulic hammer demolishing elements of the bridge concrete structure at night with artificial lighting
Four Démex excavators demolishing elements of the concrete bridge structure
Impressive bottom to top view of the main bridge concrete structure showing a Démex excavator at work.
Five Démex excavators demolishing the bridge, crushing concrete and piling concrete on the ground

Total Deconstruction of the Saint-Jacques Bridge in Montreal, QC

The deconstruction of the tiered, Saint-Jacques concrete bridge, above the Turcot interchange, was above all a complex project given its location, size, and timeline. A large amount of equipment was required at the same time and operated around the clock, even on weekends, when access to highways 15-S, 15-N, and 720-E and 720-O W were closed. The various challenges therefore included, managing the environmental issues at play, road-user safety, working alongside several other contractors, running the project in parallel with another major project nearby, the extremely tight schedule, and the amount of work involved in effectively deconstructing, effectively the largest overpass in Quebec.

SERVICES PROVIDED:

  • Total deconstruction
  • Metal Reclamation/Recycling
  • Waste management
  • Concrete crushing
  • Structural engineering

VARIOUS CHALLENGES:

  • Project magnitude
  • Tall structure
  • Large volume of very hard concrete
  • Providing continued access for maritime traffic
  • Weekend road closures (for road users)
  • Complex logistics
  • Adhering to a very tight schedule
  • Working onsite with other subcontractors
  • Environmental protection
  • Dust management
  • Noise management

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