Architects: Marc Mimram
Area: 295 m²
Year: 2024
Photographs: Erieta Attali
Lead Architects: Marc Mimram
Project Management: Administration des Ponts et Chausées – Division des Ouvrages d’Art
Structural Engineer: Marc Mimram Ingénierie
Contractor: Tralux, Viry Fayat
Category: Pedestrian Bridge
Partner Engineer: Jacques Durst, Razvan Ionica
Architect Engineer: Laura Fontaine
Architect: Nathalie Kreib, Bertrand Robuchon, François Renson
Execution Engineering Office: Greisch
Client: Fonds Kirchberg
Partner Architect: Fabeck Architectes
Supervision of Works: INCA
Country: Luxembourg
Passerelle des Arts Bridge infrastructure project by Marc Mimram Architecture Ingénierie and Fabeck Architectes in Luxembourg has redefined the integration of engineering and landscape through its suspended footbridge in a protected forest. Connecting a growing urban area to the Modern Art Museum of the Grand Duchy, the bridge preserves the existing trees by adopting a curved and counter-curved plan at canopy height. Constructed entirely in polished stainless steel, it introduces unprecedented material use in bridge construction at this scale, minimizing maintenance while ensuring reflection-based environmental harmony. The structure’s continuous mirror-like skin deconstructs the visual boundary between architecture and nature, while its on-site assembly using hidden joints maintains the integrity of the polished surfaces. Focused on material efficiency and low carbon impact, the bridge offers both a physical connection and a contemplative experience in a fragile ecological setting.
The Passerelle des Arts, designed by Marc Mimram Architecture Ingénierie in collaboration with Fabeck Architectes, is distinguished by its innovative material use, careful environmental integration, and strong focus on sustainability. This footbridge spans a protected forest, linking a rapidly developing urban area with the Modern Art Museum of the Grand Duchy of Luxembourg. The design addresses functional requirements while expressing a profound respect for the natural landscape. The bridge’s placement was carefully determined to avoid disturbing any existing trees, reflecting a deliberate sensitivity and thoughtful regard for the existing context.
The plan layout of the footbridge preserves all existing trees through a system of curves and counter-curves that allows for a seamless connection while encouraging a slow, reflective walk at canopy height. The structure offers pedestrians and cyclists a distinctive experience of traversing the forest from above. For those walking at ground level and descending into the valley, the underside of the bridge reveals itself as a striking object, primarily due to its material: polished stainless steel. The choice of polished stainless steel is a defining feature of the project, marking the first time this material has been used in bridge construction at such a scale. It possesses mechanical properties comparable to carbon steel while requiring virtually no maintenance and eliminating the need for treatments like galvanization or painting that could negatively affect the surrounding vegetation. The reflective nature of the polished stainless steel enables the bridge to integrate seamlessly into its environment, using light and reflections to respond to its natural context.
Depending on the viewpoint, time of day, and season, the structure partially disappears through its reflective surfaces and maintains an ongoing dialogue with the surrounding trees, shifting visually in the same way the sky changes throughout the year. The mirror effect across all exterior surfaces functions as a means to observe or deconstruct the landscape encountered along the footbridge. The Passerelle des Arts incorporates advanced engineering techniques. As the first bridge of its kind using polished stainless steel, the project required the creation of specialized welding procedures, on-site section assembly, and surface polishing. The individual sections are joined on-site using hidden interior bolting, preserving the uninterrupted appearance of the polished stainless steel. The development of these fabrication and assembly techniques ensured the continuous visual flow of this elevated structure suspended above the forest canopy.
The project places strong emphasis on material efficiency, recognizing that structural performance depends on balancing span length with material use. Frugality is regarded as the most effective approach to reducing carbon emissions. In addressing environmental concerns, the focus extends beyond minimizing the carbon footprint to include the relationship the structure establishes with its immediate surroundings. As such, the design fully considers the landscape context. In addition to serving as a functional connector, the footbridge responds to the conditions of a contemporary intervention within a sensitive site. Through its soft and refined expression, the structure transforms the act of walking at canopy height into both a physical journey and a mental experience.
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Project Location
Address: Luxembourg
Location is for general reference and may represent a city or country, not necessarily a precise address.
