| Work Detail |
Metrolinx announced that progress continues on the Hazel McCallion LRT line, with major portions of the project’s new elevated guideway now complete. This elevated section stretching over Highway 403 near Square One is an outstanding featuring of the Hazel McCallion Line. The bridge will connect the future City Centre stop at Rathburn Road and the Robert Speak stop at Hurontario Street, providing easy access to a core area of the city. The last of the girders (the horizontal beams that form the backbone of a bridge) were installed over Highway 403 last fall, following the previous girder installation over the eastbound lanes of the highway in the summer. Girders are critical components of the bridge’s superstructure, the part responsible for supporting the weight of everything that crosses over. In this case, that means trains for the future LRT line. Beneath the girders lies the substructure, made up of piers and abutments that were carefully installed earlier in 2024. With all the key parts now in place, construction teams are shifting focus to building the bridge deck –the flat surface that will eventually hold the LRT tracks. Completing the bridge deck will be a key moment, as it will pave the way for the next step – installing the tracks for the LRT. A specialized concrete screed machine plays a starring role here. Running on rails, it ensures the concrete is poured with precision, creating the perfect thickness, slope, and curvature. This advanced tool not only speeds up the process but also delivers greater accuracy compared to traditional hand-finishing methods. |
