Motorway A3 Frankfurt - Nuremberg, flyover 2242

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Exemplary without example

connecting people

The A3 motorway crosses Germany from the Dutch to the Austrian border. This European west–south connection has six traffic lanes. GRASSL designed the beginning of the new motorway section at the Fürth–Erlangen interchange – sustainably and innovatively.

paving the way

Traditionally delicate meets robust. The innovative union of arch and truss bridge allows the design of an extremely shallow span straddling the approximately 70 m wide motorway without any intermediate supports. The structure exudes elegance from all angles due to the acrylic glass panels in the railings, a soffit with an exceptional design and steel panels that refract the light. Discretion meets intelligence: linear drainage and a conscious decision to forego wear parts significantly improve the durability of this extraordinary structure.

creating construction culture

True creativity may start with the big picture, but the importance of details cannot be denied. By working together creatively, an engineering team can rapidly generate a visually pleasing solution in terms of landscape, traffic and the environment. Many cars cross arch bridges. And also truss bridges. The arch truss bridge – a unique structure: you’d better drive through. // don’t miss it.

Year of completion


Type of intervention


Contracting authority

Autobahndirektion Nordbayern



Type of structure

Road bridge

Construction method

Longitudinal launching on launching car, lateral launching, lifting / assembly of prefabricated parts

Construction material of superstructure

Reinforced concrete, steel composite

Total length

70,00 m

Type of structural system

Mixed arch system

Span lengths

70,00 m

Construction height

0,70 - 5,50 m

Construction width

12,85 m


Firmhofer + Günther Architekten

Services Grassl

Basic assessment, preliminary design, detailed design, planning for approval, construction planning, preparation of tendering

Latest news about the project

Lecture by Jacqueline Donner

Teamwork and impressive infrastructure projects – in late October we attended the Stralsunder Brückenbautag ...

Special publication

The A3 federal motorway is an important west-south connection …