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Construction

For example, the clean concrete covers an area of 9,500 m2 and is 15 cm high. The invert is a good one metre thick. The challenge lies mainly in the high rate of reinforcement and concreting. The site was divided into 15 zones to optimise the schedule. This is why we are pre-assembling the columns and walls.

The particularity of this project lies in the massive quantities of concrete and steel needed to create the reinforced concrete, which will guarantee the solidity and watertightness of the whole structure.

A monumental project

Aerial view of the construction site for Sidest's new biological wastewater treatment plant at Uebersyren.

Built in 1991, the current wastewater treatment plant treats urban wastewater from several neighbouring municipalities as well as wastewater from the airport. But after more than three decades in service, it has reached its maximum capacity. Faced with demographic change and growing needs, Sidest has decided to double the plant's treatment capacity, from 35,000 to 122,000 population equivalents.
The project involves the construction of an imposing infrastructure: 146 metres long, 65 metres wide and 13 metres high, including pools and technical facilities. The work will be carried out in an enclosure that has been excavated and reinforced beforehand, at a depth of 15 metres.

In Uebersyren, Sidest entrusted us with the construction of its new biological wastewater treatment plant.

Biological wastewater treatment plant

Félix Giorgetti designs Sidest's new biological wastewater treatment plant at Uebersyren

Modernisation of the Sidest wastewater treatment plant at Uebersyren

Construction of Sidest's new biological wastewater treatment plant at Uebersyren.

A major reinforcement system.

Concreting operation.

View of the construction site for the Uebersyren wastewater treatment plant.

Pre-assembly of columns.

The challenge also lies in the schedule, since the shell of the building must be completed by the end of 2024. That's just nine months after work began.

Reactivity and mobilisation

Aerial view of the site in June 2024

In March 2024, F&eacute;lix Giorgetti launched the construction of Losch's new headquarters in Kockelscheuer, all&eacute;e Louis Ackermann in the municipality of Roeser. Located alongside Cube 4T8 - Losch's innovation centre - the 9,772 m2 office building is designed to accommodate 300 people over three floors, with two levels of basement parking. The building has been designed with sustainability in mind, and will incorporate geothermal energy, a photovoltaic system and a rainwater recovery system.
Impeccable execution
What's special about this project? The majority of the building is made of architectural concrete, which means that the walls will be left exposed. The quality of the concrete and its execution must therefore be impeccable. Of the 7,253 m3 of concrete, 4,560 m3 will be made from visible concrete.

Losch Luxembourg, a company with a long history in the automotive sector, laid the foundation stone for its new head office this year. And the historic automotive company entrusted the structural work to Félix Giorgetti.

Full throttle for Losch's new headquarters

Félix Giorgetti to build the structural work of Losch Luxembourg's new headquarters in Roeser

Losch Luxembourg's headquarters

Formwork for the level -1 slab.

The walls are made of architectural concrete.

The construction of a hospital involves a number of technical features, including the use of baryta concrete (high density) for the so-called "critical" areas, which contain X-ray machines or sensitive products. The building's waterproofing has also been improved. The perimeter walls and floor slab are covered with a white tank. The reinforcement is reinforced to prevent cracking, and all critical points such as the joints where the concrete is poured are treated to ensure watertightness. A membrane that adheres to the concrete as it is poured is used for critical areas.
Delivery of the shell, external fittings and networks is scheduled for the end of 2027.

Technical features

Conception

Surrounded by the existing CHL and maternity hospital, the new hospital is located on the corner of Val Fleuri and rue Federspiel.

Covering an area of 54,158 m2, the new building stretches between Val Fleuri and Rue Ferderspiel, on the site where the old maternity hospital once stood.
The building has nine storeys and three basement levels. It has 378 rooms, 478 beds, 18 operating theatres, 6 endoscopy rooms and two helipads.
The aim of the project is to bring together on a single site all the acute clinical activities hitherto split between CHL Centre and CHL Eich, as well as the Institut national de chirurgie cardiaque et de cardiologie interventionnelle (INCCI). It is also surrounded by the existing CHL, to which it will be linked by a footbridge, and the maternity unit, which opened in 2015.

A project under discussion since 2013, the long-awaited construction of the new CHL began in February 2024. The structural work on the country's largest hospital is being carried out by the joint venture of Félix Gioregetti, CBL, Galère Lux and Lux TP.

CHL, the country's biggest hospital

Luxembourg's biggest hospital

The project also includes visible concrete elements such as the central staircase, underground elements such as these columns and perimeter walls.

The new hospital should open in 2028.

In addition, two bridges will be built to carry the N13 under the A4, and the existing bridge on rue de l'Europe will be demolished. The retention basin connected to the Mess river below will also be redeveloped.
To ensure the peace and quiet of residents, 9,400 m2 of acoustic walls will be installed along the route.
As this is a busy road, traffic will have to be kept moving throughout the works. For this reason, the width of the carriageway and the speed limit have been reduced until the work is completed in February 2026.

9,400 m2 of acoustic walls

The works will initially involve redesigning half of the Esch-Luxembourg interchange, with the creation of two slip roads.

Especially as motorists currently have to make a diversion through the town to reach the capital. This has a major impact on the comfort and safety of local residents.
Direct access to GRIDX
Organised in several phases, the work being carried out by F&eacute;lix Giorgetti on behalf of Ponts et Chauss&eacute;es and the municipality of Mondercrange will initially involve redesigning half of the Esch-Luxembourg interchange, with the creation of two slip roads. These will be served by an oval roundabout 230 m long and 80 m wide, which will extend under the motorway and be equipped with traffic lights. It will also provide direct access to the Wickrange industrial estate and lead to GRIDX.&nbsp;

Inaugurated at the end of the 1960s, the Pontpierre interchange is one of the oldest in the country. Traffic has exploded since then, making it necessary to adapt the infrastructure, which has just three slip roads for entering and leaving the A4. 

Redesign of the Pontpierre interchange

Redesign of the Pontpierre interchange on the A4 by Félix Giorgetti 

Redevelopment of the Pontpierre interchange on the A4 to improve traffic flow and safety for local residents.

This solution involves prefabricating walls at Green Stone's production site in Bastogne, Belgium. These are then delivered to the site, ready to be installed according to an installation plan supplied by its design office. There are many advantages to this method, including speed of installation, time savings and improved working conditions for the workers involved. For example, a house can be built in one storey a day, compared with 10 days using the traditional method. The walls are also made of Poroton&reg;, a clay brick containing mineral wool insulation. These combined materials offer excellent thermal performance, making it possible to design homes that consume less energy. Thanks to its integrated insulation, there is no longer any need for external insulation, and fa&ccedil;ade renderings can be applied directly, saving even more time on planning.

To build our housing estate, we chose Green Stone technology, a high-performance solution.

High-performance, eco-responsible construction

The houses on the Am Leem development in Bascharage.

Heading to Bascharage, southwest of Luxembourg. This section of the city of K&auml;erjeng in the canton of Capellen has nearly 6,000 inhabitants and is known for its National Brewery, one of the symbols of Luxembourg&rsquo;s terroir.
Located 16 km from Luxembourg-city, 14 km from Esch-sur-Alzette, 7 km from the Belgian border and 13 km from the French border, Bascharage is close to the country&rsquo;s biggest cities and to the main roads, while offering a calm and pleasant living environment.
In terms of mobility, the city has a train station (at Sanem and P&eacute;tange) and is served by numerous bus lines.
Cyclists can also use the two cycle paths that pass through the town.
All the amenities of a big city are also present; schools and high schools, banks and institutions or shops (Cactus, pharmacies, restaurants, gas stations, etc.). Everything is there, five minutes from your future home.

This new residential development is in a quiet, privileged location, set back from the main road between Avenue de Luxembourg and Rue des Pr&eacute;s. It comprises 15 single-family homes and three small-scale residences, each with four flats. With its soft colours, zinc roofing, large elegantly framed windows and green spaces, our teams have created a haven of peace, an invitation to well-being and a gentle way of life.

In Bascharage, Félix Giorgetti is developing and building the Am Leem housing estate.

Am Leem housing estate

Presentation of the Am Leem development, a residential project in Bascharage developed and built by Félix Giorgetti

Development and construction of 15 houses and three residences at Bascharage

View of the back of the houses on the Am Leem development in Bascharage

The Am Leem housing estate features three residences: Clay, Sand and Gravel.

Our interior designers have created bright, functional and welcoming spaces.

Location of the Am Leem housing estate

The environment also plays an important role in this new route. In order to protect the local fauna, our teams have installed protective netting and will build in crossings under the road to allow frogs, in particular, to cross in complete safety. The Moulterbach stream will also be restored and enhanced, with a new bed meandering peacefully along the new road. In keeping with the environmental approach, 85,000 m3 of material from the earthworks will be processed on site and reused for the pavement boxes.

Protecting nature

This is why our teams have opted for a different methodology and will be using the top-down construction technique. The area will first be stabilised with 400 90 cm diameter piles, on which a covering slab will be placed.&nbsp;
Our teams will then come and dig eight metres below the structure to pour its 70 cm invert and its walls, representing 20,000 m3 of material to be evacuated.
<h3>A curved trajectory</h3>
This underpinning work is one of the greatest challenges of this project. Added to this is the fact that the trajectory of the trench is curved. A formwork carriage will be used to pour concrete over the entire height of the walls, in 10 m increments, to ensure that the curvature of the structure is respected.

La tranchée couverte étant située sur une nappe phréatique, cette partie représente l’un des principaux challenges de ce chantier.

Top-down construction

View of the cut-and-cover works in the Bettange-sur-Mess section and view of the rest of the route.

Dipach-Gare bypass

For many years now, the Route des Trois Cantons - the main thoroughfare for the municipality to the west of the capital - has been saturated. More than 8,000 vehicles pass through every day, slowed down by the PN5 level crossing, which is closed for up to 40 minutes an hour. The new bypass will provide a direct link between the municipalities of Reckange-sur-Mess and Bettange-sur-Mess, offering an alternative to the Route des Trois Cantons, which runs through the conurbation, and eliminating its level crossing for greater safety. With a length of 2.2 km, the route will include two lanes of traffic and two junctions at each end to ensure that traffic flows smoothly. It will comprise a number of structures and facilities:
<ul>
<li>a 125 m-long cut-and-cover tunnel, with two 50 m-long access hoppers, which will run under the roundabout towards Bettange-sur-Mess ;</li>
<li>an 85 m mixed metal and concrete footbridge for soft mobility;</li>
<li>a reinforced concrete overpass 15 m long and 5 m wide;</li>
<li>cycle paths;</li>
<li>a farm track;</li>
<li>hydraulic structures such as canals and a retention basin;</li>
<li>a crossroads;</li>
<li>noise protection measures such as noise barriers.</li>
</ul>

Félix Giorgetti is carrying out the construction work on the Dippach-Gare bypass. A 2.2 km long project for the Ponts et Chaussées and the CFL.

Dippach-Gare bypass

Construction of the Dippach-Gare bypass by Félix Giorgetti for the Ponts et Chaussées.

Construction of a 2.2 km bypass to relieve traffic congestion on the rue des Trois Cantons.

The new road will run under the railway bridge, eliminating the level crossing at Dippach-Gare.

The Moulterbach stream being restored to a more natural state.

Drilling the piles for the cut-and-cover section.

Construction

Unique know-how

Civil Engineering

Residential Buildings

Office Buildings

Public Infrastructure

Industrial and Commercial Buildings

Logistics Centre

Projects

Biological wastewater treatment plant

2024 - 2026

Losch Luxembourg's headquarters

2024 - 2024

CHL

2024 - 2027

Redesign of the Pontpierre interchange

2023 - 2026

Am Leem housing estate

2023 -

Dippach-Gare bypass

2023 - 2025

Projects

Biological wastewater treatment plant

2024 - 2026

Losch Luxembourg's headquarters

2024 - 2024

CHL

2024 - 2027

Redesign of the Pontpierre interchange

2023 - 2026

Am Leem housing estate

2023 -

Dippach-Gare bypass

2023 - 2025

Invest with Félix Giorgetti

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