The East European High Speed Line (HSL) is a project of 406km of new high-speed railway allowing a commercial speed of 320km/hour, between Paris and Strasbourg.

The first phase of the East European HSL project was completed with 300km of new track in June 2007.

The second phase (106km of track) was completed end of 2016.

The H section, awarded to setec, covers 35km of track comprising the following features:
• 9 viaducts (453m for the longest)
• 1 twin-tube tunnel (Tunnel de Saverne) 4km long with a 52m2 air space in each tube

• Excavated land: 6 million m3
• Backfill: 4 million m3
• Engineering structures: 27



setec provided the following services:

  • Concept design and project masterplan
  • Geotechnical studies and surveys
  • Complete detailed design of the civil engineering structures, track, catenaries and power Equipment
  • Assistance to the Project Owner for the works procurement (tender)
  • Civil engineering contract management
  • Review and approval of the construction design
  • Construction supervision and acceptance of works
  • Environmental assessment (noise impact) and mitigation measures (anti-noise devices)
  • As-built documentation


French National Railways (SNCF Réseau - formerly RFF)

Key figures

Period of services

from 1999 to 2001 and from 2007 to 2013

Key challenges