Our foundation: acciona.org Initiatives we support Our strategy Sustainable Development Goals Climate emergency Social development Sustainability indices Sustainable Development Alliances Technology and innovation centres Open and collaborative innovation Digital hub Innovation projects Job offers Graduates and internships Diversity, equity and inclusion Safety, health and well-being Training Selection process Energy Transport Water Social Cities Real Estate Financial Integrated annual reports Annual accounts Results, reports & presentations Average period of payment to suppliers Ratings Share price Dividends Analyst opinions Investor calendar General Shareholders' Meeting Board of Directors and Committees Management team Share capital Annual Corporate Governance Report Director remuneration Governance rules and compliance Framework Agreement CNMV Communications Sustainable finance
Construction of twin tunnels Galicia, Spain See on Google Maps
The project consisted of the construction of twin tunnels, with galleries between them every 250 m. The ends of the tunnels are extended with false tunnels. On the Vigo side, these tunnels meet under the A-9 Highway through a section between cut-off walls, constructed with a 'cut-and-cover' method.

The section has two distinct parts. The first is the open subsection between the origin of the project established at k.p. 2/200 from the parking lot defined in the survey report, which meets the junction with Buenos Aires Street, and the entrance of the false tunnels preceding the tunnel, formed by two twin tubes for a single track.

 

The second part consists of this tunnel subsection whose exit is near the end of the section and at the origin of the next section, and which constitutes the main part of this project.

The most significant features of the project include the construction of:

  • Two twin tunnels that are extended at their ends by false tunnels.
  • On the Vigo side, these tunnels meet under the A-9 Highway through a section between cut-off walls, constructed with a 'cut-and-cover' method.
  • There will be galleries between both tunnels built every 250 m, excavated using conventional methods.

GENERAL INFORMATION

  • Location: Vigo - Das Maceiras, Spain.
  • Contract type: Construction.
  • Infrastructure: 2 x 8.15-km long tunnels with 250 m of emergency galleries.
  • Year of project completion: 2010
More projects Discover all of our projects