Open invitation to tender, deadline 28.09.2017, for the main inspections between March 2018 and the end of August 2018 of 418 structures including 5 tunnels in Zone 2 of the Ofrou. Time limit for receipt of questions: 29.08.2017. Duration of the contract is from 15.01.2018 to 31.12.2018. Further information from http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=980227 (German) and/or http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR= 982095 (French). Contact Ofrou, Winterthur, tel +41 58 480 47 11, fax +41 58 480 47 90, email beschaffung.winterthur@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=328133-2017 and http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=333516-2017. Ref. n. 170004. 35/17.