Open invitation to tender, deadline 22.11.2017, for upgrading work under the D.l. n. 264/2006, PSG Phase 2, Lot 3C, in tunnels Pagonia (952 m, 952 m), Spartiacque (1800 m, 1773 m), Tarvisio (2362 m, 2347 m) and San Antonio (1260 m, 1238 m) on the A23 highway Udine-Carnia-Tarvisio, section Pontebba-state border, in Udine province. Value of the contract is EUR6.57 million, excluding VAT. The duration of the contract is 360 days from the award. Contact Autostrade per l'Italia SpA, attn Eng Matteo De Santis, Rome, tel +39 0643634553, fax +39 0643634206, email gareappalti@autostrade.it. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=396974-2017. Bid Code n. 0104/A23. 41/17.