Work on the Orange Line began on May 23, 1962 on Berri Street just south of Jarry Street. In November 1962, the city of Montreal learned that it had been awarded the 1967 International and Universal Exposition (commonly known as Expo 67). To better meet the anticipated demand for transit during Expo 67, it was decided on August 6, 1963 to add the Sauvé and Henri-Bourassa stations in the north, and the Square-Victoria-OACI and Bonaventure stations in the south.