2 single-track railway tunnels
2 cut and cover tunnel sections
Railway sections in a cutting and on an embankment
Construction of sonic boom structures at all 4 tunnel portals in order to avoid the sonic boom effect
Part of new Erfurt-Leipzig-Halle railway line
Single-track railway tunnel
DB Netz AG [German rail company]
represented by DB Projekt Bau GmbH
Wayss & Freytag Ingenieurbau AG
as technical leader of a joint leader
December 2006 to September 2012
€ 270 million
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.
Railway tunnel and stations for the London railway system in one of the most advanced railway projects in Europe.
Four-track extension of the Olten–Aarau railway line, Switzerland: the 2.6 km long Eppenberg tunnel helps to eliminate the traffic bottleneck.