Categories for Underground works

following the collapse of a 19th-century underground structure in Valenciennes. In early September 2021, the Valenciennes Métropole Local Authority (CAVM) made an urgent call to SADE Special Works. The vault of a 19th-century gallery, located under Place de l’Esplanade in Valenciennes, partially collapsed following road redevelopment works. This gallery channels the Grand Bruille underground river. A key facility for the CAVM, the recommissioning of the whole square had to be executed urgently: the road works were scheduled to resume in mid-October on the collapsed portion, and reinforcement works to the structure had to be completed by… +

Work will begin in Paris this summer on the vast programme to make the Seine swimmable for the 2024 Olympic and Paralympic Games. This Paris City Council action plan covers, among other things, the construction of a storage-treatment-return basin in Austerlitz and several sewer mains down by the River Seine. The aim of this project is crystal clear: to drastically reduce overflows of wastewater from Paris’ wastewater treatment systems during rainy weather to ultimately improve the quality of the waters of the River Seine. Officially announced only very recently, the contract was awarded to a consortium of 5 firms by… +