Our project diary

There's a lot happening when it comes to the planning and construction of the new S4. Our project diary keeps track of the latest developments and follows how the project is going. Personal views about this major undertaking are available from different members of the project team, who also explain the details of their work. It's a mine of interesting information. Enjoy!

Monday, 19. December 2022

The S4-Team wishes you Merry Christmas!

Merry Christmas!

Wednesday, 9. November 2022

Agile construction on the S4: DB optimises construction sequence with two steel bridges

Einhub der Brücken

Deutsche Bahn AG

The lifting of the bridges early Saturday morning on the S4 construction site

In order for construction to continue at full speed and for trains to be able to roll along the long-distance railway tracks without major closures next year, Deutsche Bahn (DB) is optimising the construction process for the S4. During a site visit in Hasselbrook today, Hamburg's Senator for Traffic and Mobility Anjes Tjarks got an idea of the creative solution - two 27-metre-long steel bridges. Until the actual structure over the freight bypass is built at the site, DB is using two bridges from its existing stock. Experts installed them in record time over the weekend with the help of a 700-tonne crane.

Wednesday, 2. November 2022

S4 presents innovative noise protection in Ahrensburg

Amina Karam & Michael Kablitz in Ahrensburg

Deutsche Bahn AG/Peter Mantik

General Project Director Amina Karam and Head of Planning Michael Kablitz at the event in Ahrensburg

Why do we need a four-track extension of the railway line? What impact will the planned noise protection have on the townscape of Ahrensburg? DB discussed these and many other questions with citizens and experts in Ahrensburg last Thursday.

After an hour of lively exchange at seven market stands, moderator Katrin Fahrenkrug welcomed the 150 visitors in the auditorium and a further 130 viewers on the livestream. After a keynote speech by IG Tunneltal, Amina Karam, General Project Director for S4, and Michael Kablitz, head of S4 planning, presented the project and details of the third construction phase.

Wednesday, 26. October 2022

Infomation event on the S4 in Ahrensburg

On Thursday, 27 October 2022, the town of Ahrensburg will hold a public dialogue event on the expansion of the  S-Bahnlinie S4 in the region. At the invitation of the town, we from Deutsche Bahn will be there with the S4-Projectteam at the Schulzentrum am Heimgarten. Our experts on planning, noise protection, the environment and archaeology will take part in a panel discussion.  

We look forward to welcoming many of you on site and to exchanging ideas with you. We will be happy to explain all the details of the project and answer your questions. All those interested who are not present can follow the panel discussion here via livestream from 7 pm. We look forward to your active participation!

More information on the event here.

Thursday, 4. August 2022

Get a taste of practical experience: 
a visit to the S4 construction project

Those who regularly follow the construction site camera were recently able to discover something else on the construction project besides the usual work: 17 people, equipped with orange safety jackets and helmets, inspected the site on Hammer Straße. DB trainees from all over Germany and colleagues from the Hamburg railway project "Verbindungsbahnentlastungstunnel" (VET) visited the S4 project.

Marian Mischock, 30, a trainee in the infrastructure planning department in Berlin, was happy about the excursion into practice: "We all come from different backgrounds. During my studies of transport economics, I mainly dealt with the theoretical basics of the economic evaluation of transport projects. I am very happy to get to know a transport project at close quarters today".