M6 Motorway Bridges and Engineering Structures (M0–Érd)

The M6 motorway section between the M0 ring road and Érdi-tető established a connection between Budapest's orbital motorway and the existing M6 motorway towards Dunaújváros. The route, located near the capital, was shaped by existing railway lines, major roads and road junctions. The project also included Hungary's first three-level motorway interchange.

Our responsibilities included the overall bridge engineering design and coordination of the related design activities. The 29 engineering structures have a combined length of 1,417 metres. Various structural solutions were adopted to meet the different geometric and technical requirements, including cast-in-place reinforced concrete, steel–concrete composite structures and precast bridge girders.

Two significant structures are the 228-metre-long overpass crossing the M0 motorway and the bridge over the Budapest–Pusztaszabolcs railway line, which has a maximum span of 50.6 metres. The latter presented particular engineering challenges due to the five railway tracks, the required vertical clearance and the limited structural depth available. The steel–concrete composite structure was designed to accommodate these constraints.

The bridges and engineering structures enabled grade-separated crossings of existing transport routes and contributed to integrating the M6 motorway into the Budapest metropolitan area's expressway network.

General designer of the motorway section: UNITEF ’83 Műszaki Tervező és Fejlesztő ZRt.

Design partner: Speciálterv Kft.

Contractor: Vegyépszer Zrt.