Wienerwald Tunnel

The Wienerwald Tunnel is a 13.35-kilometre-long railway tunnel near Vienna, passing underneath the northern part of Wienerwald between Gablitz and Mauerbach. It is part of a new 250 kilometres per hour section between Vienna and St. Pölten which is part of the Western Railway .The Wienerwald Tunnel was constructed as part of a major expansion of Austria's most important rail corridor, it was intentionally built as a measure to minimise gradients and facilitate high speed traffic, as well as for better accessibility to the newly constructed Wien Hauptbahnhof central station in Vienna. It is divided into two distinct sections, comprising a single bore accommodating a pair of tracks and two parallel bores each carrying a single track; it also meets up with several other neighbouring tunnels, including the Lainzer Tunnel. Construction of the Wienerwald Tunnel commenced in autumn 2004, largely relying on conventional methods. Breakthrough was achieved in early 2010, after which fitting out commenced. The tunnel has been in operational use since 9 December 2012.

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