We are constructing the new S4 line for you
Amina Karam is the public face of the S4, and she is just as international as Germany's main port city. She joined the project as General Project Director on 1 February 2021. Originally from Morocco, she is now back in Germany after spending several years outside the country, her adopted home. Not only is she fluent in German, Arabic, French and English, but she is also a communicative and hands-on manager who is keenly aware of how important the new S4 is for the entire Hamburg region.
Overall Project Management
Amina Karam
General Project Director
"I want to strengthen the partnership between our project team, the central and state governments, the participating construction companies and the public so that, together, we can focus on the S4 project and successfully achieve our collective goals."


We are DB Netz AG's S4 team
Working together for a common goal – the construction of the new line S4. This page names the key members of the project team.
Isabell Johannhörster is responsible for the S4 project's PR work. You can contact her by e-mail or phone at +49 (0) 40 3918 4420.
Financial Management

Executive Department


assistant to the Project Team
(on behalf of DB)

Risk Analyst &
Contract Expert
(on behalf of DB)

Building Approval Procedure & Common Law Affairs

Project Partner Management &
Common Law


Communication and Press



Stakeholder-management
Team Management

Back Office

1 and 3

Project Management for Construction Sections
Construction Section 1

Structural Engineering & Station Construction

Structural Engineering & Station Construction




Construction Section 2

Structural Engineering & Station Construction

Structural Engineering & Station Construction

Structural Engineering & Station Construction

Structural Engineering & Station Construction

Structural Engineering & Station Construction
Construction Section 3

Structural Engineering & Station Constructionn

Individual Measures

Structural Engineering & Station Construction
Rail Technology

Electromechanical Engineering
(on behalf of DB)



ETCS

Electromechanical Engineering & Engineer Control-Command

Electromechanical Engineering

Pipeline & Cable Crossings

Pipeline, Cable Crossings & Rail Crossings

Pipeline, Cable Crossings & Rail Crossings
Contract and claims management

Claims Management
(on behalf of DB)
Technical Department / Back Office

Planning & Contracting

Project Planning




Environment, Geology and Waste Disposal Department

Environment

Environment
Financial Management Team







Construction & Supervision

Hamburg


E-Technology





Monitoring












(Competenza GmbH – on behalf of DB)

(R&K Ingenieure -
on behalf of DB)
Students working on the S4 project

GPS / Cross-Team

Electromechanical Engineering
Our S4 project partners
The S4 project is a joint undertaking between the German states of Hamburg and Schleswig-Holstein.
Different ministries and public bodies in these states oversee the building of the new suburban rail line to Bad Oldesloe. We have listed the main contacts here.








Putting plans into action
First, all measures have to be planned and approved. Then we can start the work of putting the plans into action.
To build the new S4 line, we are working with several construction companies that have unrivalled experience and expertise.






Matthäi Trimodalbau GmbHResponsible for the rail overpass at Hammer Strasse, site access roads and construction site facilities. More information








Working together for a common goal
A project like the new S4 line between Hamburg and Bad Oldesloe needs to involve a wide variety of people if it is to be a success on every front. These people include planning experts, environmental engineers, construction managers and communications specialists, not to mention employees at external project partners and construction firms. Though we come from very different professional backgrounds, we all share one goal: creating the new S4 line.
If you want to join the S4 team at DB Netz AG,
just get in touch with our recruiter Joelle Engelmann by e-mail.