Crews have started drilling along Main Street and nearby streets to check ground conditions for the Hazel McCallion Line extension into downtown Brampton, the Ontario government said Nov. 9. The work will help Metrolinx plan a light-rail link of more than three kilometres between Brampton Gateway Terminal at Steeles Avenue East and Brampton Innovation District GO Station. Ontario’s Nov. 9 announcement
The crews are drilling boreholes to learn what lies beneath the route. The drilling is part of the design work for the planned tunnel. Metrolinx chief executive Michael Lindsay said the soil conditions will influence the equipment the agency uses. Ontario announced plans for a tunnel in January 2025, and Metrolinx lists the extension in planning and design. Ontario’s tunnel announcement, Metrolinx’s Brampton extension page
What riders would gain
The downtown link would give riders a connection to GO trains, Brampton Transit and Züm. The main Hazel McCallion Line is being built from Port Credit GO in Mississauga to Brampton Gateway Terminal and is designed to serve 19 stops over 18 kilometres. Ontario says vehicles are being tested on that corridor. The downtown Brampton and downtown Mississauga extensions are separate projects. Metrolinx’s main line overview, Ontario’s Nov. 9 announcement
What residents are still waiting to learn
Ontario’s announcement gives no block-by-block drilling schedule, lane-closure details, tunnel construction contract award, final project cost or date for passenger service on the extension. Lindsay acknowledged that the ground investigation can disrupt local businesses and communities. Ontario’s Nov. 9 announcement
Metrolinx says environmental studies are part of the next phase of work and that it will share dates for public engagement once confirmed. The federal government announced its intention to support the extension in March 2025 without specifying a dollar amount for the extension. Metrolinx’s Brampton extension page, Federal funding announcement
Feature image: AI-generated illustration of soil sampling. It depicts generic ground layers.
