Widening of A3 motorway
Widening of A3 motorway
Félix Giorgetti is taking part into the major mobility project of the widening of A3 motorway.
The major project to widen the A3 to 2x3 lanes between the French border and the capital began in mid-2022. This project is long awaited by the thousands motorists who use the route every day, and represents a major mobility challenge for the country.
As part of this large-scale project, Félix Giorgetti is in charge of the construction of the section between the Croix de Gasperich and the Livange interchange. More than two years of work are planned for this 4km section.
Initially, the work involve extensive earthworks with the removal of more than 200,000m3 of material. For this purpose, our teams have been equipped with a Komatsu PC 490, which is ideal for large-scale work, and a Liebherr R926 Compact, which is controlled by a Leica GPS to ensure perfect embankment.
The motorway widening also includes the laying of sewerage and multi-tube channels (for electricity and fiber-optic internet), the construction of foundations for future gantries, the laying of acoustic walls, and the creation of a 16,450m3 retention basin with a large vegetated area.
Length of the section
The A3 widening project has some special features, particularly in terms of organisation, safety and traffic management.
"We have to be perfectly organised," explains our site manager. We are working along a busy road. The safety rules are therefore very strict. For example, you can't get within one and a half metres of the concrete blocks. Vehicle traffic is limited to 70 km/h, but you never know. A truck could hit the wall and cause serious damage."
Another requirement is the circulation of authorities. One lane must be accessible at all times to facilitate their intervention through the heavy traffic. An access road was therefore created on what stood as the hard shoulder, as well as refuge areas in case of a break down.
The final constraint was the motorway service area at the beginning of the section under construction. "The petrol station is the busiest in Europe, and closing it is not an option. We therefore had to find solutions to manage the traffic and maintain its activity."
Runway rehabilitation of the Findel airport
The only runway at the Findel Airport has been completely rehabilitated. In order to maintain the airport activities, the work was carried out only at night.
Construction of a 1.9 km bicycle path between Esch-sur-Alzette and Belval, the centrepiece of which is a 1.2 km footbridge, the longest in Europe.
A 400-space P+R in Mersch
Construction of a P+R with 400 places for the CFL next to the station of Mersch to develop the mobility pole of the city.
Félix Giorgetti, in a consortium with Karp-Kneip Constructions, built for lux-Airport a new checkpoint as part of the rehabilitation work on the Findel runway.