The purpose of the contract to be concluded is to draw up APS (Preliminary Preliminary Design) and a Detailed Design (DPA) for modifications to the roof of the Manche Storage Centre (CSM) in order to provide solutions to the current points of fragility with a view to improving the durability of the structure. This contract covers studies in geotechnics, geomembrane, UHPC civil engineering, impermeable bituminous concrete and seismic stability.

The purpose of the contract to be concluded is to draw up APS (Preliminary Preliminary Design) and a Detailed Design (DPA) for modifications to the roof of the Manche Storage Centre (CSM) in order to provide solutions to the current points of fragility with a view to improving the durability of the structure. This contract covers studies in geotechnics, geomembrane, UHPC civil engineering, impermeable bituminous concrete and seismic stability.