The works relate to the reinforcement by nailing of the 1987 ter and quar reinforced earth walls, constituting the front walls of the abutments of the OA 1987 of the A8, in the town of Nice.

The total length of the walls is approximately 79 m and 84 m. They rise about 13 m above the ground for their highest part. This operation mainly includes the following works: site installations, preparatory works, the installation of anchoring nails, the implementation of support plates, the restoration of the premises. The implementation of the nails represents approximately 640 anchor nails representing approximately 8,800 ml of nails.