Open invitation to tender, deadline 31/03/2025, for the construction management during the repair of the Barenburg tunnel (1028 m) and the construction of the new fire-fighting water supply system as part of the maintenance project of the 8.5 km section of the N13 in the Andeer region. For bid/tender documents click here. Duration of contract is from 27/05/2025 to 31/12/2031. Contact Ofrou, Bellinzona, tel +41 584696811, email acquistipubblici@astra.admin.ch. Visit https://ted.europa.eu/en/notice/-/detail/88260-2025. Ref.n. MP-070091. 07/25
