Open invitation to tender, deadline 12.03.2012, for surveys and geophysical surveys for construction of the Kerenzerberg parallel safety tunnel on N03/70 section. Contract duration 14.5.2012 to 12.10.2012. Contact OFROU, Winterthour, e-mail beschaffung.winterthur@astra.admin.ch. For more http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=724565. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=037843-2012. 06/12