Invitation to tender by negotiated procedure, deadline 06.06.2014, for project management for the 3.8 km-long Voldslokka tunnel and the balancing basins at Oset. Duration of contract from 01.09.2014 to 31.12.2018. Further information, specs and docs from https://kgv.doffin.no/ctm/Supplier/Documents/Folder/116735 and Benedicte Kjorsvik at Oslo Kommune, tel +47 02180, postmottak@vav.oslo.kommune.no. Tenders or requests to participate must be sent to https://kgv.doffin.no/ctm/Supplier/Notice/248913. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=160682-2014. Ref. n. 53/2014. 20/14.