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General Information

Beginning of works: 2007
Completion: 29 November 2012
Status: in use

Project Type


km Name
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Technical Information


length 13.318 km
number of stations 12
maximum speed 80 km/h
track gauge 1 435 mm

Case Studies and Applied Products

Competition win in Hamburg: HafenCity continues to grow

Competition win in Hamburg: HafenCity continues to grow

The result of the realization competition for the southern extension of the U4 to Grasbrook was recently announced. The team of sbp, gmp and WTM won.


Excerpt from Wikipedia

The U4 is a line of the Hamburg U-Bahn, and the shortest with a length of 11.9 kilometres (7.39 mi). The line, opened in 2012, serves 12 stations. From Jungfernstieg to Billstedt, it shares tracks with the U2 line.


The U4 is the newest line in the Hamburg U-Bahn and the first line that is basically a branch of an older, existing line (the U2), with whom it shares the route from Billstedt to the major transfer station Jungfernstieg, located in the city center. More precisely, the U4 branches off the U2 at Jungfernstieg 165 meters before the station and stops at the outer tracks of the four-track U2 station. Subsequently, the U4 crosses the Neustadt in a far-swinging 180 ° bend and reaches the newly built Überseequartier stop under the central area of the HafenCity district after about 3 kilometers. The following station, HafenCity Universität lies about 650 meters to the east in the Elbtorquartier. Since December 7, 2018, the line has been extended 1.3 km eastward, to a new terminus at Elbbrücken.

Except for a part of the section between Burgstraße and Horner Rennbahn and the section immediately before the Elbbrücken station, the U4 runs entirely underground.

Projected extensions


In January 2013, the government of Hamburg decided to build the U4 one more station to Elbbrücken. At Elbbrücken, the U4 will have connections to the Hamburg S-Bahn. In April 2015, the construction works for the extension of the U4 started . The new Elbbrücken U-bahn/S-bahn station opened on December 7, 2018.

Eastern extension from Horner Rennbahn to Dannerallee

At Horner Rennbahn, the U4 is planned to branch off of the U2 and continue east under the Manshardtstraße. Two new stations are planned along this extension: Stoltenstraße, east of the existing bus stop with the same name, and Dannerallee, west of the bus station with the same name in the area of a local shopping center. Following the two stations, the construction of a two-track storage facility is also planned, which is to be built in such a way as to allow a later extension of the line towards Jenfeld. Overall, the extension to Dannerallee is expected to connect the households of around 13,000 people to the subway network. For the year 2030 the Hochbahn expects 13,600 passengers daily on the route.

Text imported from Wikipedia article "U4 (Hamburg U-Bahn)" and modified on 22 July 2019 under the CC-BY-SA 3.0 license.

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