Extension of the red line in Lisbon

Double track tunnel section of 2,200 m between Alameda station and the Campolide terminus. The project includes: two new stations (Saldanha II and S. Sebastián II), partial renovation of existing stations (Saldanha I and S. Sebastián I), a service branch in a single-track tunnel connecting to the Blue Line, two ventilation stations and a double connecting tunnel at the end of Alameda station.


  • Name: Extension of the red line in Lisbon
  • Construction Company: Sacyr Somague
  • Cliente: Metropolitano de Lisboa, E.P.
  • Execution dates: 2003 - 2009


Amount (million €)


Stake (%)


m³ excavated


m³ of concrete

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