Motorway A1, extension including bridge over the Rhine river

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Ausbau der A1, inklusive Rheinbrücke Leverkusen

Measure beats memorial

connecting people

Its reputation could not be worse – ailing, overloaded, contaminated. There is good reason to worry about the existing bridge on federal motorway A1 over the Rhine River at Leverkusen. Politicians call it a “memorial for the catastrophic state of German infrastructure”, truck drivers complain about the time and cost of diversions and residents are troubled about toxic contaminants. The negative circumstances were piling up. A new connection over the Rhine River was urgently needed. And planning permission for the new connection had to be obtained quickly.

paving the way

GRASSL was contracted as the general planner, who coordinates everything. The planning team had to deal with interdisciplinary requirements – traffic infrastructure, feasibility studies, subsoil, emission protection, hydraulics, aerodynamics, etc. – at record speed. And with the design. After only two years of planning, the planning permission application for the entire construction phase was submitted. Despite several lawsuits in the Federal Administrative Court, construction was officially permitted to start four years later.

creating construction culture

Twin bridges are an aesthetic challenge. To ensure that the symmetric structures form a visual unit, the A-pylons are slightly inclined to the inside, and their joint at the apex is also slanting. This creates a great view despite the many structural elements next to each other. The chosen structural system sets an example for economic material usage. The result is a transparent and slender bridge that matches the surrounding land- and cityscape.

Year of completion

In progress

Type of intervention

Replacement

Contracting authority

Die Autobahn GmbH des Bundes

Client

Bundesrepublik Deutschland

Overview

Bridge over the Rhine river

Elevated road B

Elevated road A to DO

Elevated road A to Trier

Bridge K31

Bridge K32

Bridge K33/34

Bridge K35

Energietrasse FR Do

Energietrasse FR Trier

Description

Structures

River crossing: two cable-stayed bridges containing six traffic lanes each, total length 688,7m, bridge area 46.349m²
Approach viaducts: pre-stressed concrete bridges with hollow box girders, total length of each bridge 1,064m, bridge area 65,174m²
Overpass Spoerkelhof and KVB: Two composite steel bridges with plate girders, maximal length 39m, bridge area 2,078m²
Flyover A, in direction of Trier: composite steel bridges with hollow box girders, total length 500m, bridge area 14,510m²
Flyover A, in direction of Dortmund: Composite steel bridges with hollow box girders, total length 431m, bridge area 9,850m²
Interchange Leverkusen West, slip road from Dortmund: composite steel bridges with hollow box girders, total length 442m, bridge area 5,943m²
Interchange Leverkusen West, slip road to Dortmund: composite steel bridges with hollow box girders, total length 742m, bridge area 10,428m²
Interchange Leverkusen West, slip road fromTrier: composite steel bridges with hollow box girders, total length 398m, bridge area 6,265m²
Interchange Leverkusen West, slip road to Leverkusen: composite steel bridges with hollow box girders, total length 374.6m, bridge area 4,975m²
Interchange Leverkusen West, slip road from Düsseldorf: composite steel bridges with hollow box girders, total length 141m, bridge area 1,900m²
Motorway access point Niehl-Industriestraße: two composite steel bridges with hollow box girders, total length 70m, bridge area 2,800m²
4 Supporting structures
17 Noise cancelling barriers in the course of roads
13 Noise cancelling barriers on bridges
5 Rainwater retention facilities
5 Gantries
1 Sealing wall

Location

Leverkusen

Architect

Firmhofer und Günther Architekten

Services Grassl

Basic assessment, preliminary design, detailed design, planning for approval, construction planning, preparation of tendering, assistance for tendering, conceptual design of traffic infrastructure, health and safety coordination, verification analysis, feasibility studies, visualisation, building information modelling

Jobs@GRASSL

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