Implenia wins £298m railway line expansion contract in Sweden


Swiss construction services company Implenia has secured an order for twin-track expansion of the railway line between Varberg and Hamra in the west coast of Sweden.

The contract, worth SEK3.5bn (£298m), will include the planning and construction of a 2.8km conventional tunnel, a 450m cut-and-cover tunnel, a 1.3km cutting, several bridges, a new railway station and a total of 2.7km of track, plus a freight train station.

The construction work is expected to take six years, during which time the railway line will continue to operate. From 2024, trains could be running on the new tracks beneath the Varberg’s city centre.

In 2018, Swedish Transport Administration Trafikverket has awarded Implenia a commission of about SEK200m (£16.8m) for the initial planning and preparation of the infrastructure project.

During the work, Implenia will rely on the know-how of its Swedish experts and its tunnelling specialists. The company claims that the collaboration between its different divisions has now improved and aims to provide Trafikverket with all the capabilities needed for such a major project.

Due to the early involvement of Implenia and the collaborative contract structure, the company was able to optimise planning, preparation and construction methods by partnering with Trafikverket.

Thus, the company claims to be in a better position to execute the second phase of the project and the contract for the detailed planning and construction work.

In June 2019, Implenia, in a joint venture with Spanish company Acciona, had won a contract to build a new railway line through the town of Moss in Norway. The project will include 10.3km of twin-track line, some of which will run above ground.

The JV’s job also includes building two tunnels (Mosse Tunnel and Carlberg Tunnel), each around 2km long, two shorter cut-and-cover sections, a tunnel portal and a new train station. Implenia’s share of the order is 55%, worth NOK3.4bn (£328m). The company claims to be the technical leader of the joint venture.

The contract is part of InterCity project, awarded by the country’s state railway company Bane NOR. Bane NOR initiated to improve train links between towns and cities in the east of the country.


Image: Implenia to build twin-track railway line in Sweden. Photo: Courtesy of Trafikverket.

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