Replacement construction of a four-lane road bridge over the A1 interstate, BIM pilot project and implementation with moving road traffic

At the Hamburg-Billstedt junction on the A1 interstate, a bridge built in 1960 was demolished and replaced by a new structure. Up to 100,000 vehicles a day use the B5 Bergedorfer Strasse, which crosses the A1 interstate with two lanes in each direction at this point. The existing two-span structure was designed as a prestressed box girder bridge and, after 60 years of use, showed considerable damage.

The new two-span bridge was designed as a steel composite superstructure and rests on a flat-founded central column. The use of prefabricated composite girders allowed construction time to be optimised. Construction was carried out in four sections, with half-sided construction ensuring continuous traffic on the main road. The southern section was demolished and then rebuilt. This process was repeated for the northern section. This resulted in four closures of the motorway. Close coordination with the road designers was crucial in planning the construction process.

This challenging task was a BIM pilot project of the German Federal Ministry of Transport and Digital Infrastructure (BMVI) as part of the implementation of the "Digital Planning and Construction Phasing Plan". It was carried out as an open BIM with the planning participants throughout the entire process. The BIM use cases applied included as-built survey, variant analysis, visualisation, coordination of trades, logistics planning, 2D plan derivation, quantity takeoff and 4D scheduling.

ClientFreie und Hansestadt Hamburg, Landesbetrieb Straßen, Brücken und Gewässer
Project dataTotal length: 46 m, Max. span: 23 m, Year of construction: 1956/1960
LocationHamburg
Completion2021

Our services

  • Demolition planning

  • Project design

  • Structural design

  • Use of BIM methods

Download the project description PDF

Other reference projects in this field of service

Bergedorfer Strasse B5/A1 bridge

A7 interstate extension, Hamburg-Schnelsen section

Fehmarnbelt tunnel

U3 city center subway line restoration

Siegtal bridge

Langenhorn Nord

European XFEL research facility

Huntebrücke, A29 interstate

Pedestrian bridge Bremerhaven

Süderelbe crossing

Butterfly Bridge

Connecting HafenCity to the subway system

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