Rhineland calls – GRASSL in Düsseldorf

In 1952, Hans Grassl was asked to submit a special design for the flood plain bridge on the western bank of the Rhine River, the first cable-stayed bridge over this river in northern Düsseldorf: the Theodor Heuss Bridge. Subsequently, he was commissioned to also carry out the execution design. In order for GRASSL to be able to be on site, a Düsseldorf office was established in 1954. After Düsseldorf became the state capital in 1950, many infrastructure measures were carried out and Düsseldorf became a main focus of activity. In addition to participating in the creation of the Düsseldorf Rhine River bridge family with the design of the Oberkassler Bridge and the Flehe and Ilverich bridges, GRASSL also made a significant contribution to urban planning flagship projects in Düsseldorf, such as the lowering of the Rheinuferstrasse or the expansion of the metro network. The construction of the U81 still keeps the Düsseldorf office busy today. GRASSL is further participating in the high-profile bridge replacement projects such as those in Leverkusen, Duisburg-Neuenkamp or Rahmede.

In addition to offering traditional services, in the 1980s GRASSL implemented a structural asset management system for the city, which allows all bridges and detected defects to be listed and costed. GRASSL also developed an inspection trolley for checking the cables of the three stayed cable bridges in Düsseldorf.

The Düsseldorf office offers all services and carries out a variety of design and engineering services in the areas of construction, maintenance, supervision and checking of infrastructure, building and industrial structures. As a reliable partner, we support the state capital of Düsseldorf, Wuppertaler Stadtwerke GmbH and the various interregional traffic authorities, amongst others.

News from Düsseldorf

Messe Dresden

33rd Dresden Bridge Building Symposium

From 13 to 14 March 2024, GRASSL participated once again in the 33rd Dresden Bridge Building Symposium at the Technische Universität Dresden. A big thank you to the organising team for preparing and executing these events to perfection each year!...

Hohenzollern Bridge in Cologne

A new Rhine River crossing

The Cologne cityscape is dominated by the cathedral, with the historic Hohenzollern Bridge in the foreground. The proposal for an arch bridge that GRASSL submitted together with the architecture firm PPL won over the City of Cologne in the...

Widening of the B173 at Michelau

Construction progress

As part of the widening of the B173 at Michelau to four lanes, a new, approximately 160 m long prestressed hollow girder bridge (BW 5-2) will be built. With span lengths of up to 70 m, the three-span bridge will pass over the B173...


Ingenieurbüro GRASSL GmbH
Adlerstr. 34-40
40211 Düsseldorf
Tel. 0211 / 17 59 7-0
E-Mail duesseldorf@grassl-ing.de

Office management
Dipl.-Ing. Martin Grassl
Dr. sc. techn. Hans Grassl
Dipl.-Ing. Guido Herbrand