The Chaussée de Waterloo appeared in 1662. Originally, it was simply an extension of the old / from the place called La Bascule to Waterloo. The road, which was also called the / was again extended at the end of the 17th century to Charleroi and Namur. In 1711, under the Austrian rule, it was decided to divert the new road at La Bascule and to extend it to the Halle Gate in Saint-Gilles. The construction was carried out between 1725 and 1727. The first section, connecting the Halle Gate to the / (literally "Barrier of Saint Gilles", named after tollgate which stood there), follows the slight curves of the old (Middle Dutch for "Way towards Uccle"). The second section, for its part, constitutes a new straight artery linking the Barrière to Ixelles.
