Open invitation to tender, deadline 13.07.2011, for subprojects 8 and 9 tunnels section south-north involving construction of 255 m-long open cut road tunnel and 85 m-long ramp with technical equipment and ancillary railway, sewer and archaeological excavations for Ko-Bogen in Dusseldorf. Further information from Andreas Weise at LHS Duesseldorf, tel +49 21189-93984, fax -33984, e-mail andreas.weise@duesseldorf.de. Specs and docs from LHS Duesseldorf, tel +49 21189-93902, fax -29080, e-mail ausschreibungen@duesseldorf.de to where tenders or requests to participate must be sent. Time limit for requests for documents 06.07.2011. Contract duration 18 months. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=155595-2011. 20/11.