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Øresund Link, Denmark

Project data

Location: Copenhagen, Denmark

Motorway and railway connection between Denmark and Sweden with a bridge, tunnel and an artificial island in the transition section.

  • length of the tunnel: 4 km
  • start of construction: 1996
  • completion of the shell: start 1999
  • construction method: monolithic tunnel construction using cantilever launching in the caisson technique (submerged tunnel)


  • production of 20 tunnel elements which are each 176 m long and 42 m wide in eight single segments
  • tight schedule
  • strict requirements with regard to dimensional tolerance


OTC - Øresund Tunnel Contractors:

  • NCC AB (Sweden)
  • The Laing Group (Great Britain)
  • Boskalis Westminster Dredging B.V. (Netherlands)
  • Dumez-GTM (France)
  • E. Phil & Son A/S (Denmark)

Customer's benefit

  • compliance with strict specifications
  • reliable waterproofing
Nils Bjelm, Site Manager, Øresund Link
Nils Bjelm
Site Manager

The Øresund Tunnel is the largest monolithically constructed tunnel in the world. During the realisation of this project, PERI has fulfilled our expectations. Even the tight schedule wasn´t a problem, neither was compliance with the strict dimensional tolerances during the construction. PERI has undoubtedly kept its promises with regard to performance and technical knowledge.

PERI solution

  • two stationary hydraulic assembly lines for the formwork units in use (each had one base, two outside and five tunnel forms, four guide girders, various temporary foundations and two stopends)
  • utilisation of the cantilever launching method for construction
  • planning, fabrication and assembly of the forming machines in just 8 months

PERI systems in use