Deutsche Bahn has awarded a €290m contract to Alpine and its partners Hochtief and Wayss & Freytag to build the Bad Cannstatt tunnel as part of the Stuttgart 21 project in Germany.
Scheduled to be completed by 2018, the Bad Cannstatt tunnel will be 3.8km long and will connect Stuttgart central station with the new Neckar Bridge.
Alpine managing director of BeMo tunneling Josef Arnold said, "The Bad Cannstatt Tunnel makes the sixth railroad tunnel Alpine is building simultaneously for Deutsche Bahn (DB)."
The 117km Stuttgart 21 high-speed rail project will link the German cities of Stuttgart, Ulm and Augsburg. Once completed, the journey between Stuttgart and Ulm will be reduced from 54 to 28 minutes, while the journey from Stuttgart train station to the airport will be reduced from 27 minutes to eight minutes.
The Stuttgart 21 high-speed rail line was officially announced in April 1994 and construction began on 2 February 2010.
After completion Stuttgart 21 will be part of the 1,500km-long 'Magistrale for Europe' high-speed line that connects Paris, Strasbourg, Stuttgart, Ulm, Munich, Vienna and Bratislava.
Almost half of the 117km of the new railroad line will lead through 16 tunnels, which are the mainstay of the entire railway project and in the future trains will travel underground in the Stuttgart city centre.
The 1,500km Stuttgart - Ulm railroad project includes the new Wendlingen - Ulm line and the Stuttgart 21 section. It will be part of the European high-speed 'Magistrale for Europe' net that links cities and regions with a total of 34 inhabitants and 16 million employees in five states.
Austria-based Alpine Construction is a member of the FCC group and has built roads, motorways, power plants, stadiums, railways and subways, bridges, residential, commercial and industrial buildings worldwide.