Invitation to tender using negotiated procedure, deadline 29.06.2012, for construction of 20,000 cu m stormwater detention system including connectors and 1.5 km-long TBM-driven, segmentally-lined tunnel beneath Avenues De Fre, Brugmann and rue de Stalle. Further information, specs and docs from Vivaqua in Brussels, tel +32 251882-30, fax –10, e-mail sd@vivaqua.be, to where tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=177048-2012. 23/12.