Open invitation to tender, deadline 18/12/2020, for the design of the collision protection for tunnel portals and niches throughout the territory of the Winterthur Ofrou subsidiary. The contract includes the general management. For further information click here (German), here (French) and here. Duration contract from 15/02/2021 to 30/06/2023. Contact Ofrou, Winterthur, tel +41 58 480 47 11, fax +41 58 480 47 90, email beschaffung.winterthur@astra.admin.ch. Ref.n. 180047. 46/20.