Periodic notice for the construction of Line 5 west extension from Schottentor to Ernst Happel Stadion. Schottenring, which supplies a cross-platform interchange with Line 4, has to be rebuilt to pass under Line 4 in a + shape. The next station will be TaborstraíŸe before crossing line U1 at Praterstern. The line will continue south to Ernst-Happel-Stadion. Lot U2/1 Schottenring is 775 m-long, lot U2/2 TaborstraíŸe is 1,493 m, lot U2/3 Praterstern 616 m, lot U2/4 Messe 1,544 m and lot U2/5 Stadion 1 km. Visit http://ted.eur-op.eu.int/ojs/en/frame.htm, OJ S 85-67025 or contact Wiener Linien, fax +43 1790967409. 19/02. A €28.9 million contract has been awarded to Alpine Mayreder for construction of section U2/4 Messe, 1,544 m in length with one station in Messe. Visit www.alpine.at 27/03.Construction of section U2/1 Schottenring has been awarded to Porr Technobau and Bilfinger Berger for €59.2 million. Length 775 m with one station in Schottentor. Cut-and-cover and NATM. Visit www.porr.at and www.bilfinger.de 27/03.