In 1926, the dams built by the Duke-Price papermaker took office on the Grande and Petite Décharge rivers, which flow into the Saguenay at Alma. After a winter of abundant snow and an extremely rainy spring, the level of Lac Saint-Jean reached nearly 24 feet in May 1928, flooding certain residences and farmland, affecting all the surronding municipalities. According to the information of the time,the water reached the main street which was then at a lower level than the current street.