France - Structures of art and civil engineering

Description

Structural reinforcement and improvement of the ecological transparency of the metal nozzle OA N184-022 allowing the crossing of the Ru de Liesse by the RN 184 at Saint-Ouen-l'Aumône in the department of Val-d'Oise (95), near the road crossing RN 184/rue Claude Chappe (PR 4+326).
Structural reinforcement and improvement of the ecological transparency of the metal nozzle OA N184-022 allowing the crossing of the Ru de Liesse by the RN 184 at Saint-Ouen-l'Aumône in the department of Val-d'Oise (95), near the road crossing RN 184/rue Claude Chappe (PR 4+326). The works concern: the drying-up of the Ru for the duration of the works the reinforcement of the nozzle's kidneys with reinforced concrete strings the reinforcement of the vault of the metal nozzle with shotcrete. The reduction of the hydraulic section to increase the water level during low-water periods The cutting of the existing invert and the construction of a new invert in reinforced concrete with the installation of an alluvial mattress to reconstitute the natural bed The reconstitution of the watercourse-hydraulic structure junctions.

Opportunity closing date

24 March 2021

Value of contract

to be confirmed