The ambitious project of the industrial city of the Comeau Bay could not have been successfully completed at the time, without main infrastructures such as a railway and a wharf, which were built in 1929. The work was unfortunately interrupted during Great Depression of 1929-1933.
When work resumed in 1936, the wharf was expanded and the railway was extended to the bottom of the bay. At first, the steam locomotive brought the workforce, food and above all, the materials needed to build the pulp and paper mill, which was then simply called the "mill". Later on, the railway became the preferred way to route paper rolls to the loading dock.