Negotiated invitation to tender, deadline 07.03.2013, for the site supervision in Froeschnitzgraben (lot SBT 2.1) during construction of the new 27.3 km-long, twin-bore Semmering Base Tunnel. Contact OEBB, Eng. Anne Schuster, Vienna, tel +43 193000458-31, fax -29, e-mail anne.schuster@oebb.at. Further information from https://www.ava-online.at, to whom tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=019671-2013. 04/13.