Open invitation to tender, deadline 15.02.2011, for construction of canal tunnel and associated works. Further information, specs and docs from Maciej Pospieszny at PK in Wronki, tel +48 67254-5655, fax -0645, e-mail m.pospieszny@pk-wronki.pl to whom tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=026445-2011. 04/11.