Open invitation to tender, deadline, 16/12/2022, for the design of the Sils tunnel refurbishment on the N29. For further information please click here (German) and/or here (French). Duration of the contract is from 03/04/2023 to 31/12/2032. Contact Ofrou, Bellizona, tel +41 58 469 68 11, fax +41 58 469 68 90, email acquistipubblici@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=592801-2022. Ref.n. N29TUSILS / 180060. 43/22.
