The Unter den Linden Underground Station is the transfer station for the U5 and U6 lines and lies below the junction of Unter den Linden and Friedrichstraße. The platform of the U5 line is underneath the central pedestrian promenade of Unter den Linden, and stretches from the west of Friedrichstraße right up to Charlottenstraße. The U6 platform is directly below Friedrichstraße between Unter den Linden and Behrenstraße.
Three of the station entrances are on the central pedestrian promenade of Unter den Linden, one each to the west and east of Friedrichstraße and one west of Charlottenstraße. Two additional entrances that lead directly to the U6 platform are located on Friedrichstraße, north of Behrenstraße.
The Unter den Linden Underground Station has three levels in which people can travel in all directions. On the top level, the north-south U6 line runs. The middle level is for tranfering between the two lines. On the lowest level, the east-west U5 line will run.
The Unter den Linden Station was designed by the architects Ingrid Hentschel and Axel Oestreich.
The architects had previously designed underground station Brandenburger Tor and see the new Unter den Linden Station in this context. The design is therefore based on similar plans and employs the same materials: shell limestone for the walls, white terrazzo for the floors and black supporting columns in between.
In cooperation with the adjacent Humboldt University, which is providing scientific images for an exhibition on the rear track walls, Unter den Linden underground station will be visually devoted to science.
The excavation pit for the underground station Unter den Linden was constructed in the same way as the Rotes Rathaus underground station, using the wall-, sole- and cover construction method. Through this excavation pit, the two tunnel tubes were constructed by mechanical tunnel driving, while at the same time and directly above the tunnel drive, the underground line U6 was in operation. Due to the traffic constraints at the intersection of the two roads, the diaphragm walls, the sealing floors and the slabs were produced section by section.
Within this excavation pit, the soil of the over 150m long underground station was excavated and the tubbing segments were broken off. Since the end of 2017, work has been underway on all levels.
Once the structural works were completed, the various finishing works teams started laying ballast and laying tracks from 2017 onwards. This was followed by the interior installation of floors, walls and lighting planned by the architect. The next step will be to lay all the technical lines required for underground train operations. Finally, the typical equipment of Berlin's underground stations such as ticket vending machines, ticket validators and information display cases will be installed.
Part of the new U5 has been recreated out of LEGO bricks in MINILAND at the LEGOLAND Discovery Centre Berlin. The miniature stations were built by hand based on the original construction plans at a 1:45 scale and were gradually presented to the public. In October 2015 the underground station Unter den Linden was presented, in January 2016 the underground station Museumsinsel.
Length: 132 meters
Depth: up to 17 meters
Platform depth U5: 14 meters
Platform depth U6: 5 meters
Primary Contractor of the Structural Works: Implenia
Primary Contractor of the Finishing Works: ARGE Bleck&Söhne / Bauer
Finishing works continue on all levels. Passengers of the U6 can have quick views of the construction site because the works are being done during active operation.
Visualization of Unter den Linden Underground Station
Some extraction at Unter den Linden
The track area at Unter den Linden underground station
A sea of lights at Unter den Linden