Open invitation to tender, deadline 12/01/2021, for the installation and de-installation of temporary signalling during maintenance and sanitation of the BSA (operation and safety) systems in the Pomy (3005 m, 2958 m), Arrissoules (2987 m, 2987 m) and Bruyeres-Chables (1,8km) tunnels on the A1 motorway (km 92.4-km 112.08) between Yverdon interchange to Estavayer-le-Lac, Lot 9.4. Duration of the contract is from 20/04/2021 to 31/03/2023. For further information on the tender click here (French), here (German) and here. Contact Ofrou, Estavayer-le-Lac, tel +41 58 461 87 11, email marchespublics.estavayer@astra.admin.ch. Ref.n. N01.10 160025. 50/20.
