Open invitation to tender, deadline 29.01.2009, for renewal and extension of the ventilation system in A40 Ruhrschnellweg tunnel in Essen. Engineer's estimate EUR2.5 million. For specs and docs contact Hans-Juergen Hammer, tel +49 2151 819398, e-mail hans-juergen.hammer@strassen.nrw.de. http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=337805-2008 01/09.
