Scope of work
Conversion of the dead-end station at Zaventem Airport, Brussels, into a through station;
connection of the station to the new high-speed railway line from
Brussels to Antwerp by means of approx. 5,600 m of tunnel
Sand with beds of sandstone in the rock area
single-track railway tunnel
Wayss & Freytag Ingenieurbau AG
in a joint venture
October 2007 to February 2012
€ 333 million
47 km sewerage tunnel across the Ruhr area
Increase in the shipping capacity of the Kiel Canal (Nord-Ostsee-Kanal): Pipe jacking for a pipeline tunnel 35 m below ground during ongoing lock operation.
Tunnel for a gas pipeline under Scruwaddacon Bay, Ireland was awarded the prize for best environmental initiative 2015 during the Tunnelling Awards at the International Tunelling Association.