Two gigantic tunnel boring machines will excavate both running tunnels simultaneously. The contract also includes drill-and-blast excavation of station areas for four stations: Älvsjö, Östbergahöjden, Årstafältet and Årstaberg.
– This will be the single largest contract within the entire metro expansion. We’re talking about between SEK 5.3 and 6.1 billion, says Johan Brantmark, Head of the Metro Extension to Älvsjö.
Instead of dividing the work into several smaller contracts, a single contractor will be responsible for the entire tunnel and four of the six stations.
– The works are interdependent. Our assessment is that having one and the same contractor offers the best conditions for planning and carrying out the work as efficiently as possible, Johan Brantmark continues.
According to the current schedule, the tunnel boring machines will arrive in Stockholm in autumn 2029, after which they will be assembled in Älvsjö.
Want to know more? Here you can find the latest version of the procurement timetable.
