Invitation to tender using restricted procedure, deadline 21.03.2011, for engineering design of the Gamlebyen-Langhus tunnel section of the new 22 km-long twin-track Follo line Oslo-Ski. Langhus tunnel will be twin tube and will become the longest rail tunnel in Norway. Further information, specs and docs from Per Fahlen at Jernbaneverket in Oslo, tel +47 97832327, fax +47 22455499, e-mail xfahper@jbv.no. Register interest at www.doffin.no/Search/Search_Switch.aspx?ID=224253. Tenders or requests to participate must be sent to Jernbaneverket, Stenersgt. 1D, attn 9.etg resepsjonen, Utbygging, 0103 Oslo, tel +47 05280. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=060931-2011. 08/11.