Hochtief’s contract involves the design and construction of a series of tunnels and large bridges as well as a train station.

The project, with an estimated value of up to around SEK9.5bn (€900m) is being developed in collaboration with the client Trafikverket – the Swedish Transport Administration – as part of a partnership agreement.

The construction phase is scheduled to run until 2034 and the line is scheduled to open in 2035.

The OL31 Vagnhärad project, located south-west of Stockholm, is part of the planned 160km East Link rail connection between Järna and Linköping. Tunnels and bridges account for 25% of the route.

The double-track railway will allow trains to travel at a maximum speed of 250kph.

Hochtief CEO Juan Santamaría said: “Our end-to-end capabilities as a leading infrastructure and services provider enable us to deliver high-quality rail assets. With the expansion of this rail link in Sweden, we are making a significant contribution to the growth of efficient and sustainable transport infrastructure in Northern Europe.”