The Intercolonial Railway / Canadian Government Railways Halifax terminal trackage inherited by CNR underwent significant change in the late 1910s with the construction and opening of a new south-end terminal and station in 1920. The project saw a massive railway cut built across the isthmus of the Halifax Peninsula which affected the H&SW tracks that connected with the ICR mainline near Africville. In 1921, the Halifax end of the H&SW was shifted to join the new alignment in the rock cut by constructing what became known as "Southwestern Junction" in the community of Fairview, adjacent to a large new roundhouse complex.