Open invitation to tender, deadline 18/01/2021, for the upgrading of ventilation and control systems on the A1 motorway, section Yverdon-Arrissoules (km93 +500 – km 110+800), including Pomy (3005 m, 2958 m) and Arrissoules (2987 m, 2987 m) tunnels, Lot D3.2. Duration of the contract is from 17/05/2021 al 30/06/2023. 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.
