The new S4

The S4 project from Hamburg to Bad Oldesloe

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Latest NewsThe full closure of the Bovestraße has been lifted. The closure of the eastern lane remains.More information

Opening hours in our S4-Info Train

Thursdays, 3.30 – 5.30 p.m.
Tuesdays for groups by previous appointment at S4 (at) deutschebahn.com 

More convenient, more efficient and more punctual 

Passenger numbers on northern German rail services have risen sharply in recent years, and the necessary mobility turnaround is expected to lead to even more people switching to rail in the future. To make this possible, the infrastructure at the Hamburg hub is being massively expanded
Passenger numbers have also been rising steadily for years on regional services between Hamburg, Ahrensburg and Bad Oldesloe. We are responding by constructing the S4. This new S-Bahn line will provide the region's inhabitants with better local transport between Hamburg and Bad Oldesloe. Some 250,000 people will benefit from this new service.

Opportunities and Benefits      Financing 

In-depth information about the planning process and our construction work

20 kilometres of existing line from Hasselbrook to Ahrensburg-Gartenholz will be upgraded for the new S-Bahn service. The project consists of three sections. Each of them has its own specific planning procedure, which means separate approval is necessary for every section. 

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. Members of the project team also provide details about their work so you know more about what's happening in the background. It's a mine of interesting information. Enjoy!

Wednesday, 3. July 2024

Milestone with Bargteheide:
S-Line S4 obtains planning approval decision 

After intensive dialogue, a successful hearing and constructive and cooperative collaboration with the town of Bargteheide and all other parties involved, we now hold the planning approval decision for the S4 Bargteheide individual measure in our hands.

Wednesday, 3. July 2024

More mobility for Rahlstedt

Press Photo Rahlstedt

Hamburger Hochbahn AG

Ute Plambeck, (Management Representative for the Federal States HH/SH), Thomas Ritzenhoff (Wandsbek District Head), Anjes Tjarks (Transport Senator) and Jens-Günter Lang (Technical Director of Hochbahn) at the current construction site at the Rahlstedt central bus station.

Rahlstedt is Hamburg's most populous district. This requires an efficient mobility service. In order to be able to offer this in the future, a new high-performance mobility hub will be built around Rahlstedt station in the coming years. Work on the bus system has just begun. The facility will be demolished and completely rebuilt by summer 2026. From the end of 2027, the new S-Bahn line 4 will also stop here. HOCHBAHN, Deutsche Bahn, the Free and Hanseatic City of Hamburg and the Wandsbek district are working closely together on this major joint project.

Monday, 1. July 2024

The S4 has been awarded - and now also with two prizes!

At the international congress of the ICPMA (International Construction Project Management Association) from June 22 to 25, the S4 urban rail line project in New York received two awards: for project management, public participation and communication as well as for one of the best presentation films.

Click here for the video.

S4 General Project Director Amina Karam: "I am very proud that our little S4 from Hamburg and Schleswig-Holstein is now causing a sensation worldwide and here in the Big Apple. We are part of an international network. Together with the two states of Hamburg and Schleswig-Holstein, we will benefit greatly from these contacts. This award is something like the mobility Oscar in our industry. It motivates us for the tasks ahead and will give us a tailwind."

15.07.2024Construction site camera on section 1