Open invitation to tender, deadline 16.11.2015, for local and general management during ventilation upgrading in the Mont Terri (4,068 m) and Mont Russelin (3,572 m) tunnels siyuated on the N16.The duration of the contract is from January 2016 until June 2018. For further information go to http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=885005. Contact Ofrou, Estavayer-le-Lac, e-mail marchespublics.estavayer@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=358417-2015. Ref.n. N16.00 080494. 42/15.