Turcot Interchange

Project Overview

In 2017, we signed a contract with KPH Turcot to lead the Turcot Interchange demolition, a critical component of Montreal’s infrastructure overhaul. The goal was to replace aging highway structures while protecting public safety, reducing disruptions to neighborhoods and traffic, and modernizing one of Quebec’s most vital transportation corridors.

Scope of Work in the Turcot Interchange Demolition

This interchange featured three stacked overpasses linking Highway 15 with Highways 20 and 720. Our team dismantled 15 major structures spanning 6 km, including a railway tunnel. These overpasses consisted of reinforced concrete box girders resting on piers and abutments. In total, we removed over 360,000 tonnes of concrete. We crushed and reused this material on-site, significantly reducing waste and promoting circular construction practices.

Execution Strategy and Project Coordination

We collaborated with engineers to develop detailed, stage-by-stage demolition plans. Because surrounding roads and railways remained operational, we phased work with precision to ensure continuous safety. Moreover, our planning helped avoid disruptions to critical transportation routes throughout the project duration.

Innovative Tools and Safety Enhancements

To safeguard nearby infrastructure, we deployed custom flat-bed trailers fitted with hydraulic deflectors to intercept falling debris during overhead demolition. In addition, we used vibration monitors and structural sensors to ensure stability in adjacent buildings and utilities.

Demolition Techniques and Night Operations

We used high-reach excavators and specialized attachments to dismantle elevated structures. For confined areas, our crews employed mobile cranes to execute precise removals. Furthermore, we performed most demolition at night during planned road closures. This strategy helped maintain daytime traffic flow and minimized inconvenience to commuters.

Sustainability and On-Site Concrete Recycling

We processed all concrete debris from the Turcot Interchange demolition on-site using mobile crushers. The recycled material served as backfill for new road construction, which aligned with sustainability targets and reduced the project’s carbon footprint. As a result, our methods delivered environmental and economic value.

Project Completion and Impact

We completed the project on schedule and within budget. It met all safety, environmental, and operational benchmarks while preparing the area for future highway infrastructure. Through strategic planning, technological innovation, and strong coordination, the Turcot Interchange demolition became a reference point for effective, sustainable urban deconstruction.