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VIALTA: An Extraordinary Project for an Exceptional Footbridge
A High-Level Geotechnical Challenge
To ensure the long-term stability and durability of the structure, our teams implemented an advanced technique: inclined cased micropiles of great length. This solution was chosen to meet the structural and environmental demands of the site. In total, 14 micropiles were installed on each side of the canal, requiring precise drilling methods and continuous adaptation to variable ground conditions.
A Unique Site, a Fully Tailored Logistics Setup
The project is located in a protected Natura 2000 area, accessible only by hiking trails. The remote and unpaved location created considerable logistical challenges. We duplicated the entire site setup on both riverbanks — power supply, water, welfare units, and storage areas — to enable efficient and safe operations.
Key challenges included:
Remote access, requiring carefully coordinated transportation of heavy equipment.
Working at height: operations took place 50 metres above the canal, demanding strict safety measures and collaboration with rope access experts.
Complex soil conditions: a heterogeneous mix of fill, silt, sand, gravel, and chalk — sometimes weathered, sometimes compact — required continuous drilling adaptations.
Historic context: on the left bank, works took place above Fort Eben-Emael, a listed military site with underground galleries at a depth of 25 metres. All operations were conducted with utmost care to preserve this historic heritage.
Seamless Collaboration Across Experts
This ambitious project was the result of excellent teamwork and collaboration between several key partners:
Project designer: Servais Engineering Architectural + Partners
Main contractor: ARGEA
Rope access works: EXPLOTECH
Client: City of Visé
At Franki Foundations, we take pride in tackling complex projects that require both technical expertise and creative problem-solving. The VIALTA bridge project is a perfect example of our know-how and commitment to excellence, even in the most demanding environments.
A remarkable site, for a bridge that will be just as iconic.
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