Open invitation to tender, deadline 18.05.2015, for lighting upgrading in the 1,620 m-long Siaix tunnel on trunk road RN 90 in Saint-Marcel. Duration of contract five months from award. Contact DIR Centre-Est - SREI de Chambery, Lyon. Tenders must be sent to DREAL Rhone Alpes, Lyon Cedex 06, tel +33 426286000, website http://www.marches-publics.gouv.fr. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=123899-2015. Ref.n. dirce-pt-2015-siaix-eclairage. 16/15.