DB Begins Extensive Upgrade Works on Hamburg–Berlin Rail Line

Deutsche Bahn (DB) has commenced the general renovation of the rail corridor between Hamburg and Berlin.

The nine-month construction programme involves the comprehensive modernisation of the track and station infrastructure. The works are part of DB’s S3 corridor renovation programme and are being delivered by DB InfraGO.

Full Closure Until Spring 2026

The 278-kilometre route, one of Germany’s most heavily used lines, will remain fully closed to rail traffic until 30 April 2026. Over 170 regional replacement buses will operate across 28 routes, while long-distance and freight trains will be diverted.

The project consolidates maintenance and modernisation activities into a single construction period to minimise long-term disruption.

Dr. Philipp Nagl, CEO of DB InfraGO said:

New tracks and switches, modern signalling and interlocking technology, and more attractive stations: We are transforming Germany's most important direct city connection into a stability anchor for reliable rail traffic. Following the successful general renovation of the Riedbahn, the Hamburg-Berlin line is now following suit. With the concept of bundled renewal and modernization, we are making an important contribution to the infrastructure of the S3 renovation program, which will gradually bring the railway back on track. We are aware that we are demanding a great deal of patience from passengers and companies. But I am convinced that this effort will pay off for everyone.

Major Infrastructure Overhaul

The route sees around 470 trains per day, spanning regional, long-distance, and freight services. During the closure, DB InfraGO will:

• Renew more than 165 kilometres of track
• Replace approximately 250 switches
• Convert slab track to ballasted track in key sections
• Install six new passing loops to allow better coordination between freight and passenger services
• Modernise signalling and interlocking systems, including the installation of six new interlockings and upgrades to 19 others
• Prepare systems for the future introduction of the European Train Control System (ETCS)

Noise barriers near Wohltorf and Aumühle will also be refurbished in consultation with local municipalities.

Station Modernisation

Modernisation work is planned at 28 stations along the route. Key improvements will include:

• Raised platforms for step-free access
• Extended platform roofs
• Improved wayfinding for visually impaired passengers
• Better bicycle parking
• Upgraded pedestrian underpasses and waiting areas

Twenty stations will undergo comprehensive redesigns under the “station of the future” programme.

Telecommunications Upgrades

During the closure, DB will also erect new masts to support the Future Railway Mobile Communication System (FRMCS). These installations will also accommodate public mobile network providers, aiming to improve connectivity for passengers.

Alternative Transport and Diversions

Long-distance trains between Hamburg and Berlin will continue to operate via alternative routes, mainly through Uelzen and Stendal. Up to 65 ICE services will run daily, 36 of them direct, albeit with journey times extended by approximately 45 minutes.

Regional replacement services have been jointly developed by DB and local transport authorities. These include direct buses and trains with increased capacity to maintain essential commuter links. For instance, direct services between Schwerin and Berlin (RE 85) and increased capacity on routes such as Lübeck–Bad Kleinen (RE 2) are included in the revised schedules.

Freight traffic will also be rerouted using several diversionary paths, including via Hanover, Magdeburg, and Neustrelitz, ensuring continued rail access to the German seaports.

S3 Programme

The Hamburg–Berlin upgrade is the second major project under DB’s S3 general renovation initiative. The first, completed on the Frankfurt–Mannheim Riedbahn line in late 2024, led to a 60 percent reduction in infrastructure-related delays, with measurable improvements in punctuality for both regional and long-distance services.