connecting people

The Rethe double-leaf bascule bridge has two sides: open and free in its closed state, charming and likeable when open. It takes just four minutes to raise the 1,200 t leaves, thus removing any height restrictions for large and flat ships such as general cargo ships and bulk carriers. This bridge easily eliminates any barriers in the Port of Hamburg. Due to the separation of rail and road traffic and the removal of level grade crossings, the bridge facilitates smooth shipping in the busy waterway network. The result: everything flows.

paving the way

Operation and maintenance costs have a much larger impact on the economic feasibility of moveable bridges than of fixed bridges. The moveable parts in particular are often the weakest points of bascule bridges. To economically improve the life cycle, it is best to use few or no moveable parts. Intelligence beats force: the maintenance effort is minimised by the innovative boltless finger system.

creating construction culture

The Rethe double-leaf bascule bridge is an exceptional construction. It keeps an eye to the future of the Hanseatic city and embraces it with flexible solutions. Designed to be extended, its sustainable concepts for the protection of the sensitive riverine habitat speak for themselves. Open up.

Year of completion

In progress

Type of intervention


Contracting authority

Hamburg Port Authority



Type of structure

Road and railway bridge

Construction material of superstructure

Reinforced concrete, steel

Total length

141,55 m

Type of structural system

Bascule bridge

Span lengths

104,20 m

Construction height

2,00 - 12,00 m

Construction width

24,60 m


Prof. Bernhard Winking Architekten BDA, Hamburg

Services Grassl

Basic assessment, preliminary design, detailed design, planning for approval, construction planning, preparation of tendering, assistance for tendering, construction supervision, health and safety coordination, technical examination, consultant services for the client, visualisation

Services provided by engineering consortium

Latest news about the project

Michael Borowski receives award for the Rethe Bridge

On 8 March 2021, the Federal Chamber of Engineers and the German Association of Consulting Engineers (VBI) recognised the winning teams …