Open invitation to tender, deadline 12.05.2017, for technical support to general management for geological themes during the construction of the safety tunnel, the bypasses and ancillary works for the 2171 m Crapteig tunnel on the N13. Duration of the contract is from 01/08/2017 to 30/12/2022. For further information go to http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=957845. Contact Ofrou, Bellinzona, tel +41 918206811, fax +41 918206890, email email@example.com. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=100817-2017. Ref.n. 090041. 11/17.