 The Belgian government opened contractor bidding in May 1888 and, on 1 July 1888, awarded the contract to the French firm Hallier, Letellier Brothers, and Jules Barratoux.Construction began on 28 July 1888 with the clearing and excavation of the sites and building of storage and work structures.Work was finished three years later, on 29 October 1891, and cost a total of ₣71,600,000.