To be extended northwards 4.6 km with 5 stations. Start scheduled for 2001 on 5 year project. Possible further extension southwards for 5.12 km with 8 stations. May 1998.   Preannouncement by Wiener Linien of intention to extend line 1. Contact by fax +43 17 9096 1090 or visit http://ted.eur-op.eu.int 02/01.   Invitations to tender, value $480 million, expected in May 2001 for 4.6 km-long northern extension to line 1 from Kragraner Platz to Leopoldau with five stations, of which 2 km will be underground with two cut-and-cover stations. Design by Schicki with Eggenfellner. Work on 5-year programme to start August, 2001. Visit www.metropla.net/eu/vie/wien.htm and www.wien.gv.at 12/01.   Open invitation to tender, deadline 12th April, 2001, for construction of metro line 1 extension. Contact Wiener Linien, fax +43 1 7909 61090, or visit www.wien.gv.at 13/01.   Award of construction contract for Line 1 extension to Universale, Bilfinger & Berger, Alpine Mayreder consortium. Visit www.bilfingerberger.com 42/01.   Trevi Group appointed as subcontractor by a jv of Habau, Held & Franke and Holzmann for Line U1 extension between Kagran and Leopoldau awarded for ATS63.3 billion. Continuous background walls and artificial tunnel. Work to begin in November, 2001 with completion targeted for August, 2003. Visit www.trevispa.com 47/01.   1.29 km of 1.76 km metro extension under construction by Ostu Stettin in saturated gravel and sand using combination of 20 sheet piling caissons, each 60 m-long x 10 m-wide, with watertight, back-anchored subaqueous concrete base. Piles 15.5 m-deep are driven to set caissons. Completion expected November 2004. Visit www.oestu-stettin.at 30/02.