Open invitation to tender, deadline 11.02.2011, for design, bid and construction of ventilation for Lots 2, 3 and 4 (Lot 6 SEA) of the Zurich northern ring road, including future third tube and the two existing tubes of Gubrist tunnel (3,273 m, 3,273 m) and the bitube Stelzen tunnel (375 m, 375 m). Contact OFROU, Winterthour, tel +41 5223447-11, fax -90, e-mail winterthur@astra.admin.ch. Visit http://www.simap.ch/shabforms/servlet/web/DocumentSearch?NOTICE_NR=568327 and http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=363914-2010. Bid Code: N01/38/42. 50/10.
