Start of construction: September 2009
The Söderström tunnel as part of the Citybanan project is an approx. 300 meter long submerged tunnel that crosses under the Söderström and a branch of Lake Mälaren and is located between two rock tunnels.
Start of construction: December 2003
Construction volume (value of our services): 341 M EUR
The Wienerwald Tunnel is an integral part of the new high speed railway line between Vienna and St. Pölten.