Open call for tenders, deadline 9th December, 2002 for construction of a canal including a TBM-driven 2,476 m section, ID 7.5 m OD 8.6 m. Start shaft, ID 22.5 m, depth 35.5 m. Karlplatz shaft, cross section 14 x 6.3 m, depth 35.5 m. Exit shaft, cross section 22 x 18 m, depth 28.5 m. Also microtunnelling section, length 85 m and diameter 1.5 m, with 5.2 m-inner diameter x 27 m-deep exit shaft. Several other shafts and associated works also required. Visit http://ted.eur-op.eu.int/udl?request=Seek-Deliver&language=en&docid=158453-2002, OJ S 201, or contact City of Vienna, fax +43 1 795149993161. 43/02.
A JV between Porr Tunnelbau and Bilfinger Berger has won a €55 million contract to build a 2,476 m-long TBM-driven tunnel, 8.6 m outer diameter and three shafts together with a 85 m-long microtunnelled section and one shaft. Visit www.porr.at/tunnelbau and www.bilfinger.de 24/03.
