New railway line Bettembourg-Luxembourg

2023 - 2025


Civil Engineering

New railway line Bettembourg-Luxembourg

Felix Giorgetti, in joint venture with Baatz, has been awarded contract 10 for the construction of a 1.7 km section of the new railway line between Bettembourg and Luxembourg.

A major mobility project in Luxembourg, underway since 2016, the new railway line between Bettembourg and the capital continues to take shape. The objective for the CFL is to bring it into service from 2027.
After delivering the grade separation in 2020, Félix Giorgetti is now in charge, in temporary association with Baatz, of market 10, which consists of the construction of a 1.7km section of the 7km final route.


Length of the section




Colonnes ballastées

The major challenges of the project

The assignment includes the construction of the foundations of the two-track line as well as several structures, including a cut-and-cover tunnel to allow the train to pass under the N31 between Bettembourg and Livange at the Ibis hotel.

Bypass until May 2024
As the route is very busy, this structure, which passes under the roadway, represents one of the major challenges of the project. It involves digging up to 11m under the road while limiting the impact on traffic.
To do this, a bypass will be installed on one side of the road and then on the other, with a speed limit of 70km/h to allow our teams to carry out the earthworks.
The project also includes two hydraulic structures to channel the nearby river and reinforce a drinking water pipe from Roeser.
In terms of soft mobility, it is also planned to make sections of the PCY and PC28 cycle paths that will pass nearby.


The construction site will also include a major earthwork project, involving some 140,000m3 of excavation and backfill in order to level out the terrain. This will start with stripping the topsoil. A maximum of the extracted material will be reused.

Reinforcing the soil

As the quality of the soil was not sufficient to accommodate the road structure, our teams called on a special machine to create 2,800 ballasted columns. This technique consists of reinforcing the soil by digging shafts - the columns - and injecting ballast, a material that is both permeable to water and has high mechanical properties, into them at high pressure. The column is made throughout the loose soil layer and descends to a more resistant layer of soil. In this project, the ballasted columns will reach a depth from 6 to 8 m.