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Schweiz
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Who we are
What we do
Projects
Products
Career
Contact

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Who we are

Anchored in Switzerland and internationally active, WALO is managed as a family business in the 4th and 5th generation. For over 100 years, WALO has focused on the combination of consistency and innovation.

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What we do

WALO is active as an innovative total solutions company in all markets of the construction industry. The family-owned company has established itself as a reliable partner in the construction industry and infrastructure projects in Switzerland and worldwide with its decades of experience and the permanent development of sustainable as well as economical solutions.

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Projects

We have successfully implemented many challenging projects. Therefore, we proudly let our references speak for our work.

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Products

Whether residential, industrial, healthcare, outdoor or for sports and leisure facilities - seamless floor coverings have to meet a wide variety of requirements on a permanent basis.

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Career

Good buildings and thus satisfied customers require precise construction work. All our employees, from unskilled workers to engineers, play a key role in ensuring that we achieve this goal time and time again.

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Locations

With our locations in three countries, we are successfully active for you worldwide.

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Renovation of the Walchebrücke Bridge Waterproofing, Zurich

The renovation of the Walchebrücke Bridge in Zurich required innovative construction methods and precise coordination to meet high traffic demands. By using UHFB (Ultra-High-Performance Fiber-Reinforced Material), a durable solution for waterproofing and surfacing was achieved, ensuring the long-term preservation of the bridge.

Project description

The Walchebrücke Bridge in Zurich connects two central, heavily frequented hubs: Walcheplatz on the right bank and Bahnhofquai on the left bank of the Limmat River. The main goal of the project was the complete renovation of mastic asphalt on the roadways between the sidewalks and the tram trough, which had been heavily worn over the years. During this renovation, both the surface and the underlying waterproofing were renewed, using UHFB as the new waterproofing layer with variable thickness and a minimum of 40 mm.

A key feature of this project was the heavy load on the bridge's roadway, which necessitated the use of UHFB as both waterproofing and road surfacing with a gravel matrix. To ensure longevity and proper functionality, the UHFB was applied in multiple layers to accommodate the bridge's varying cross-slopes. Additionally, partial replacement of surfaces, waterproofing, and drainage systems was carried out in the areas of curbs and sidewalks to ensure proper finishing.

Challenges

The renovation of the Walchebrücke Bridge presented several technical challenges:

Variable thickness of UHFB: Due to the varying cross-slopes of the bridge, UHFB had to be applied with variable thickness. This required precise planning and execution to ensure uniform and functional waterproofing and surfacing.
Traffic management: As the Walchebrücke Bridge is a key traffic artery in Zurich, thoughtful traffic management was essential during construction to minimize congestion and disruptions.
Weather-dependent work: The use of UHFB and mastic asphalt is highly dependent on weather conditions. Flexible construction planning was therefore necessary to avoid delays caused by unfavorable weather.