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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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St Pantaleon Channel, Austria

WALO overcomes challenging conditions to rehabilitate headrace channel in Austria, ensuring optimum performance for hydro-electric power plant.

Background

The 3,700 m headrace channel at St Pantaleon is operated by Ennskraftwerke, Steyr for power production of one of its hydro-electric power plants. The channel, located 25 km south of Linz in Austria, required some rehabilitation to be carried out after 45 years of permanent operation to ensure it continued to perform at optimum capacity. Only the upper, exposed parts of the lining needed maintenance while the channel remained operational during the works.

WALO was contracted to carry out the remedial works which consisted of milling off the old 60 mm Dense Asphaltic Concrete (DAC) layer along the channel slopes and installing a new 60 mm DAC layer. The total surface area to be re-lined was 45,000 m2 and also included various bridges and joint constructions along the length of the channel. Like every WALO project, the team applied DAC formulated to a unique design mix using specialist laying and compaction techniques.

The Challenge

The particular challenge presented by this project was that all the horizontal milling and paving works had to be carried out on the slopes, which have an incline of 34°, above water which remained in the channel throughout. Also, the only access was provided by the narrow crest road, so was very limited. This meant that movement of heavy plant and machinery had to be carefully coordinated to ensure maximum safety and efficiency at all times. The water level in the channel was lowered for just ten weeks to allow the work to be carried out while the whole project was completed in four months.