Main works included
- Installation of temporary facilities for ventilation, communication, and construction power supply
- Construction of 65.8 km of Slab Track (Porr system), including 6.5 km as a mass-spring system (approx. 38,700 m³ of concrete)
- Construction of a 2.0 km approach section in ballast superstructure
- Construction of 65.8 km of service and shoulder paths (approx. 123,850 m³ of concrete)
- Construction of 119.6 km of drainage system
- Construction of ventilation buildings and outdoor facilities East and West
- Completion of the East and West portals as well as the East and West portal buildings
Project services
General construction site services
- Operation of installations
- Establishment and dismantling of construction sites (East and West)
- Site offices for the client (East and West)
- Test section
Logistics and safety
- Safety management – safety control centers
- Logistics coordination – logistics control center
Temporary works
- Cooling and ventilation
- Construction communication
- Power supply and lighting
- Access control and personnel tracking
- Sanitary facilities
Structural works, service and cable paths
- Construction of central shafts
- Installation of cable protection routes (cable ducts)
- Construction of service and shoulder paths
Superstructure
- Construction of Slab Track
- Construction of mass-spring systems
- Installation of drainage
Preparatory works for technical equipment
- Drilling/mounting of cable support fixings
Overhead line installation works
- Delivery/drilling/mounting of overhead line supports
Civil engineering
- Construction of ventilation buildings East and West
- Construction and completion of the East and West portals as well as the West portal building
Outdoor facilities
- Construction of outdoor facilities for ventilation buildings East and West
- Construction and adaptation of the GSA East and West
- Works on the L145 road
Open track
- Construction of approach sections in ballast superstructure
- Civil engineering services
