Open invitation to tender, deadline 28.09.2012, for local general management during refurbishment of concrete border and other civil works in the tunnels Piumogna (1,607 m, 1,606 m), Casletto (220 m, 190 m), Pardorea (581 m, 541 m) and Piottino (850 m, 830 m) on the highway N2. For more http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=742793 and contact ASTRA, Bellinzona, e-mail acquistipubblici@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=231259 -2012. 30/12.