Open invitation to tender, deadline 09.12.2015, for a geological and geotechnics study of the three tunnels at Artxanda: La Salve-Txorierri (three-lane, 1,270 m); Ugasko-Txorierri (two-lane, 1,073 m); and La Salve-Ugasko (two-lane, 1,073 m). Contract value EUR375,941 excluding VAT, duration of the contract is 15 months. Contact Interbiak Bizkaiko Hegoaldeko Akzesibilitatea SA, Bilbao, tel +34 944057000, fax +34 944057001, e-mail info@interbiak.com. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=374050-2015. Ref.n. Exp 023/2015/Arm /exp. 45/15.