Open invitation to tender, deadline 18/02/2021, for the project manager and localized site management during the traffic management system’s upgrading in the Birchi (1 425 m, 1 700 m), Spitalhof(540 m, 540 m), Witi (1760 m, 1760 m) and Leutzigen (1230 m, 1230 m) tunnels on the Lengnau – Luterbach section of the N05. For tender documents please click here (German) and here (French). Tenders must be sent to Ofrou, Zofingen, tel +41 58 482 75 11, fax +41 58 482 75 90, email beschaffung.zofingen@astra.admin.ch. For further tender information please here. Ref.n. 180037. 51/20.
