Junction and overpasses X1, Z58 and Z59, Härkingen

The three bridges are located in the heart of the Swiss motorway hub in Härkingen, where the A1 meets the A2. Entrances and overpasses that could handle very heavy traffic were required for crossing from one national road to the other.

The three bridges are located in the heart of the Swiss motorway hub in Härkingen, where the A1 meets the A2. Entrances and overpasses that could handle very heavy traffic were required for crossing from one national road to the other. 

Construction method:

  • Soffit and cantilever frames
  • Removal of old surfaces and sealants
  • Removal of cantilever and damaged areas mechanically and with high-pressure jets
  • Large areas of concrete surface and dowelling
  • Construction of a new cantilever and abutment
  • Replacement of bearings on bridge pillars
  • Epoxy resin seals and PBD
  • HMT and SMA cast asphalt and rolled asphalt
  • Drainage
  • Crash barriers

Specialities: To manage the large volume of work, two shifts were set up from 6:00 a.m. to 10:00 p.m.

Map

Specific figures

Organisation

Project implementation in joint venture

Construction period

2010

Construction costs

CHF 6.5 million