Prior information notice of impending bid for structural and operational retrofit of approximately 1.7 km-long B500 Michaels road tunnel including two rescue tunnels 581 m-long and 287 m-long and revision of ventilation equipment and other safety features. Expected contract duration 12 months from award procedures scheduled for 03.2010. Further information from Herrn Lars Lau at RPK in Karlsruhe, tel +49 721-17752689, fax -93340264, e-mail lars.lau@rpk.bwl.de. http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=232721-2009 35/09.