Cross-city link (Durchmesserlinie) lot 3.02, escape and rescue gallery for the Weinberg Tunnel in Zurich

Navigable escape and rescue galleries parallel to the Weinberg Tunnel, connected to the main tunnel every 500 m by emergency exits and crossing points. The tunnel heading is being carried out by a gripper TBM with a 4.75 m diameter; tunnel length 4,459 m.

Mechanical hard rock heading with 4.75 m diameter gripper TBM.


Specific figures

Order value

CHF 21 million

Construction period

Aug. 2009 - Dec. 2009


4459 m

Total excavated surface

17.72 m2