Metrotren Gijon
Spain, Gijon
2004 – 2006

The link between the lightrail stations "El Humedal" and "Universidad de Oviedo" is missing in Gijon, northern Spain, hence, a new connection had to be built. The tunnel route was planned with a length of 3.5 kilometers, crossing under two rivers and built-up areas. Both geology and route looked challenging, but manageable.

Work with the EPB shield S-255 began in April 2004. However, en route for the University, progress came to a sudden halt, as unsuspected geological obstacles caused a change of direction. For nearly a year no further progress was made but with an extra 500 meters of tunnel the project finished successfully after two and a half years in December 2006. It may have meant a detour for the machine but for the students it is a short cut.

Data Sheet

Country, Location

Spain, Gijon


2004 – 2006




Soft ground
Clay, dolomite, limestone

Tunnelling length

3,910 m

Machine Data

1x EPB Shield:
Diameter: 10,550 mm
Lining method: Segmental lining
Cutterhead power: 3,600 kW
Torque: 17,000 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.