The Stockholm Regional Council awarded Skanska a SEK 1.2 billion (EUR 119.4 million) contract for the construction of Stockholm Metro extension to Nacka section, part of Blue Line.
The project includes the construction of a new metro tunnel of 1.2 km, including platform space and two ticket halls for Nacka station. This is part of the expansion of the new metro’s Blue Line, where Nacka is the last station on the eastern extension. The work mainly includes rock tunnels and shafts, rock above-ground, earthwork in the tunnels, concrete work, temporary installations, and temporary traffic diversions.
The construction is scheduled to start in the first quarter of 2022 and the project is expected to be completed during the first quarter of 2026.
The city is currently expanding the metro system by 11 km to Nacka, Södermalm and Söderort. The project consists of three main sections covering the Sickla – Järla – Nacka extension, the Kungsträdgården – Sofia – Hammarby kanal extension and Gullmarsplan – Slakthusområdet – Sockenplan extension.
The Stockholm Metro expansion begins at Kungsträdgården station, where the tunnel is already prepared for a future extension. From there a new tunnel will be constructed through the rock below water level, the first station being Sofia on Södermalm. South of Sofia station, the tunnel spits in two directions, one to Sockenplan and one to Nacka.
The extension to Sockenplan will run from Sofia station to Gullmarsplan, where a new platform is being built below the existing one. The metro line then continues southwards with new station Slakthusområdet that will replace the present stations at Globen and Enskede gård. North of station Sockenplan, the new line connects with the existing Hagsätra branch line, incorporating it into the Blue Line.
The new extensions are expected to enter passenger operation in 2030.
Stockholm Metro plans further expansions comprising four new sections totalling 30 km of new tracks and 18 new stations. The Blue Line will be also extended in west by constructing a 4.1 km of line to Barkarby and two stations. The city will also build the Arenastaden section on the Yellow Line. The 4.1 km -long line and three stations will be constructed within eight years.
The metro development project also includes the Högdalen depot expansion by constructing a 2.5 km track connection, 23 staging spaces and 2 workshop spaces.
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