MC solutions help at Toronto's Finch West Station

The newly built Finch West Subway Station at 3939 Keele Street in Toronto, Ontario, represents an important infrastructure investment for the metropolitan region. As a central transport hub in the expanded public transit network, the station plays a key role in the city's mobility strategy. Shortly before commissioning, however, unexpected water ingress raised structural concerns. Water penetrated the shotcrete surface behind a thick concrete wall on the platform level – posing risks to the long-term integrity of the structure.

Challenging conditions at a major transit node

In winter, the penetrating water froze inside the wall, causing expansionTand resulting in cracks over time. The Mosaic Transit Group, responsible for delivering the project, had to act quickly to prevent delays. The repair situation was particularly demanding. The water ingress occurred behind a shotcrete wall with integrated drainage systems, which had to remain functional during remediation. In addition, the work had to be completed within a tight time frame due to rail network constraints.

MC was brought in for its technical expertise, fast availability, and on-site training support. Work began on 3 March 2025. Within two days, crews were trained in drill pattern layout, packer installation, pumping equipment and injection methods.