La Cotinière port, Saint-Pierre-d’Oléron
_ Hydraulics. Operations related to the water cycle included a large number of maintenance, renovation and diversion projects on drinking water distribution and sewerage networks, as well as the delivery of plants and processes for drinking water production and purification and wastewater treatment, with some 10 projects under way or handed over around France. Work was also carried out on district and other heating networks in Montpellier, Clichy-la-Garenne (Hauts-de-Seine), Lens (Pas-de-Calais), Pau (Pyrénées-Atlantiques) and several municipalities in the eastern part of France. Fibre-optic network projects also continued, one example being the laying of 3,000km of fibre to connect 60,000 homes, businesses and government offices in the Meuse administrative department.
_ Earthworks, maritime and river works. Business activity was spread across a wide variety of infrastructure projects related to roads (north-eastern Metz bypass, in Moselle), railways (underground section of Line 18 of the Grand Paris Express, fit-out of shafts, high-speed removal of excavated material), flood protection (temporary storage basin on the Bassée site, south-east of Paris, for flood control along the Seine), coastline work (La Cotinière port in Saint-Pierre d’Oléron, Charente-Maritime; Marineff project in Cherbourg, Manche, aimed at protecting marine biodiversity) nuclear sites (floodwall protecting the Blayais power plant) and rubblereuse (analysis and removal of Line 18 excavation materials for reuse in quarry redevelopment). Teams also carried out several ecological engineering operations, such as restoring the hydromorphology of the Drevenne river in Isère and the ecological connectivity of the Nonnenhardt ponds in the Bas-Rhin. They also performed specialised maritime and river works (dredging, rock excavation, sheet-pile driving, etc.), for instance on a wind farm in the bay of Saint-Brieuc (Côtes-d’Armor) and a dam modernisation project vat Poses-Amfreville (Eure).
_ Deconstruction and road equipment. Dismantling, strip-out and asbestos removal operations were carried out as part of deconstruction operations on several industrial sites, such as the Metz electricity plant and the chimney at the Kem One plant in Lavéra (Bouches-du-Rhône), engineering structures (Jean-Jacques Rousseau bridge in Le Havre) and office and residential buildings. Illustrating these circular economy solutions, 200 tonnes of materials were recovered for recycling from deconstruction operations on the Défense 2 building in Nanterre. In road markings and signage, VINCI Construction participated in the A480 widening project in Isère (500km of road markings, 500 signs and 19 gantries) and in urban development work in Rouen (markings and signage, street furniture).