Open invitation to tender, deadline 31/07/2020, for measurement and monitoring during construction of the 2nd tube of the Gotthard road tunnel (2TG) project on the N02. The duration of the contract is from 01/10/2020 to 31/12/2030. For tender documents please click here (Italian), here (German), here (French) and here. Contact Ofrou, Bellinzona, tel +41 58 469 68 11, fax +41 58 469 68 90, email acquistipubblici@astra.admin.ch. Ref.n. 120043. 26/20.