Construction of two lines with a total length of 32 km and 25 stations

Design and construction of the 'Valle de Aburrá' Metro in Medellín, Colombia.

The main feature of this project was the construction of two lines with a total length of 32 km and 25 stations, such that 40% of the developed area or area suitable for development to be located at a distance of less than one kilometre from any of the system's stations.

Line A runs along the city, from Niquia to Itagüi, a distance of 23.20 km, of which 16.60 km is at-grade track and 6.60 km is viaduct track.

Line B is 5.60 km long, of which 1.20 km is level track and 4.40 km is viaduct track.

The project is completed with a 3.20 km link track. The project was completed in March 1997.


  • Location: Medellín, Colombia.
  • Contract type: Design and construction.
  • Infrastructure: 32 km long, 21 km at grade and 11 km elevated.
  • Year of project completion: 1997