Bridge-tunnel project between Longue-Pointe and Boucherville, 1961

The initial sketch for the bridge-tunnel spared the Saint-François-d’Assise Church as well as parts of Longue-Pointe. However, engineers quickly realized that such a configuration would be impossible due to the inclination of the tunnel relative to the Boucherville Islands, as it would encroach on the Saint-Jean-de-Dieu property. A slight curve had to be designed in order to achieve a perfectly straight line.