Athens Metro
Greece, Athens
2002 – 2003

A gap in the public transport network had to be closed in time for the 2004 Olympics in Athens. The project involved connecting up the metro between the new Eleftherios Venizelos International Airport and the city center. The underground work was performed by an EPB machine (S-188) with a diameter of 9.46 meters. Ring for ring, it constructed a 3.5-kilometer-long tunnel for metro line 3 in the east of the city. During the tunnelling process, the TBM had to advance at overburdens between 6.5 and eight meters, before finally reaching its destination after only 13 months.

Data Sheet

Country, Location

Greece, Athens


2002 – 2003




Soft ground
Athens slate, firm to hard coarse clay and clay

Tunnelling length

3,522 m

Machine Data

1x EPB Shield:
Diameter: 9,460 mm
Lining method: Segmental lining
Cutterhead power: 2,400 kW
Torque: 19,168 kNm

Your contact person Contact us

Steffen Dubé President and General Manager Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser Commercial Manager Herrenknecht Tunnelling Systems USA, Inc.