So that the U4 will be able to branch off towards Horner Geest later, HOCHBAHN is building the infrastructure for an interchange at Horner Rennbahn station and connecting the new tunnel to the existing U-Bahn network. In parallel with this work, the platforms at Legienstraße station are being renovated.
The exact date for the end of the closure has now been fixed: trains will be able to use the line without restrictions as of Monday, 6 May!