The project concerns design services and construction supervision for a new bridge and access structures crossing the Rivière des Galets in the communes of Saint-Paul and Le Port, and the deconstruction of the existing triangulated steel and prestressed concrete structures.

Environmental engineering
As a designer of and project manager for hydraulic, energy, maritime, industrial and urban infrastructure, Artelia has worked for many years on the application of sustainable solutions to protect, collect, store, treat, recycle and rehabilitate.
The pertinence of the thousands of environmental studies that Artelia has performed over the past 40 years is based not only on a major expansion of its analysis capabilities (noise, health risks, green buildings) but also on particularly extensive feedback.
The operation concerns the construction of a new, safe road link between Saint-Denis and La Possession to replace the existing Coastal Highway (RN1), which is subjected to climate hazards (southerly and cyclonic swell) and physical hazards from the cliff (landslides and rockfalls).
The Clichy plant is a key wastewater treatment facility in the Greater Paris area, pretreating effluent from an area measuring 108 km2 with a population of more than two million.