Open invitation to tender, deadline 16.11.2017, for consultancy and technical assistance during lining work for the Folledo tunnel (2 km long) on the La Robla-Pola de Lena (Pajares bypass), section. This tunnel is on the new Madrid-Asturias high speed line. Duration of the contract will be 14 months from the award, renewable for 7 months maximum. Value contract EUR1.04 million, excluding VAT. Contact Adif, Madrid, tel +34 917744804, fax +34 917674490, email mjmoro@adif.es. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=396903-2017. Ref.n. 3.17/20830.0234 (CON 015/17). 41/17.