Invitation to tender by negotiated procedure, deadline 16.04.2010, for construction of Vettakollen water reservoir with 1.6 km-long tunnel, and two caverns totalling 80,000 cu m, and associated installation works. Some rock microtunnellingalso required. Contract duration 30 months. Further information, specs and docs from Oddgeir Tryti at Oslo Kommune, tel +47 91655058, fax +47 23437241, e-mail oddgeir.tryti@vav.oslo.kommune.no to whom tenders or requests to participate should be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=072971-2010. 10/10.