Turcot
Interchange

Montreal, QC

Project Services

Abatement
Demolition
Recycling

Complete Demolition of the Turcot Interchange

Project Overview
Delsan-AIM was contracted by KPH Turcot in 2017 to execute the demolition of highway structures as part of the extensive civil construction project for the replacement of the Turcot Interchange in Montreal, Quebec. This multi-year initiative aimed to modernize the interchange, originally built in the late 1960s, by dismantling outdated infrastructure while ensuring public safety and minimizing disruption to surrounding communities and live traffic. KPH Turcot, a consortium comprising Kiewit, Parsons, WSP, and Holcim, oversaw the project under contract with the Government of Quebec.

Scope of Work
The Turcot Interchange consisted of three levels of overpasses connecting Highway 15 (north-south) with Highways 20 and 720 (east-west), as well as routes to the Champlain Bridge. The demolition phase involved deconstructing fifteen (15) structures, which spanned approximately 6 km of overpasses and included the removal of a railway tunnel.

Delsan-AIM managed the dismantling of reinforced concrete box girders supported by concrete piers and abutments. The total volume of concrete debris generated was around 360,000 tonnes, all of which was crushed and reused on-site to contribute to new construction activities.

Execution
Planning and Collaboration
Delsan-AIM worked closely with engineering firms to devise comprehensive demolition plans tailored to each stage of the project. Special attention was given to the proximity of live roadways, operational overpasses, railway lines, and other vital infrastructure. This coordination ensured that all demolition activities were executed safely, minimizing risk to both workers and the public.

Innovative Solutions
In response to the project's complexity, Delsan-AIM developed and deployed custom equipment, including flat-bed trailers with hydraulically operated deflectors. These deflectors were strategically positioned beneath demolition zones to safeguard adjacent structures from falling debris.

Demolition Methods
The primary demolition process employed large excavators outfitted with specialized attachments, such as high-reach booms, allowing for the efficient dismantling of elevated structures. Additionally, mobile cranes facilitated selective removal in constrained areas. Demolition activities were conducted in shifts, including overnight operations, to coincide with roadway closures and minimize disruption to traffic flow.

Material Recycling
Concrete debris from the dismantled overpasses and structures was processed on-site using mobile crushers. The recycled material was repurposed to backfill areas designated for new road construction, aligning with project sustainability goals and reducing the environmental impact of the demolition.

Project Success
Delsan-AIM successfully completed the demolition of the Turcot Interchange structures within the project’s timeline and budget, contributing to the seamless progression of new construction phases. The work adhered to all regulatory and environmental guidelines, reflecting Delsan-AIM's commitment to safety, innovation, and sustainability in large-scale infrastructure projects.