Open invitation to tender, deadline 30.10.2014, for temporary ventilation installations during track renewal in six tunnels ranging in length from 1.1 km to 3.3 km on Koeln-Frankfurt high-speed line in Hesse. Contract commences 11.03.2015 for completion 11.05.2015. Further information, specs and docs from Klaus-Dieter Alten at DB Netz in Frankfurt am Main, tel +49 3029756878, fax +49 6926521757, e-mail klaus-dieter.alten@deutschebahn.com, to whom tenders or requests to participate must be sent. Time limit for accessing documents 13.10.2014. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=291229-2014. 35/14.