Who we are
What we do
Projects
Products
Career
Contact

Schweiz
USA
UK

Who we are
What we do
Projects
Products
Career
Contact

Back

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.

Overview

Back

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.

Overview

Back

Projects

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

Overview

Back

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.

Overview

Back

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.

Overview

Back

Locations

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

Contact form

Valtschiel Bridge, Switzerland

In 2013, the Municipality of Donat repaired the first steel-reinforced concrete arch bridge in Switzerland. This involved using traditional shotcrete, an Ultra-High Performance Concrete overlay with steel rebars, and applying a gravel surface for better traction. The bridge was converted to a pedestrian bridge in the 1990s.

Case Study Description

In 2013 the Municipality of Donat in the Swiss Region of Graubünden decided to rehabilitate the historical bridge connecting the two villages of Donat and Casti. The bridge was the first ever steel reinforced concrete arch bridge built in Switzerland and considered a structure of historic importance. To repair the water ingress damages on and below the structure as well as reinforce the bridge for years to come a solution using both conventional shotcrete and a Ultra-High Performance Concrete overlay with steel rebars was choosen. As the bridge was converted into a pedestrian bridge in the 1990s a gravel riding surface was applied to the fresh UHPC-layer for added traction.

Special Features

The 144 ft (44 m) long and 12 ft (3.6 m) wide bridge was rehabilitated using a 1 in (3 cm) thick Ultra-High Performance Fiber Reinforced Concrete layer for waterproofing as well as structural reinforcing using a manual screed and on-site mixing equipment. All works on the underside of the bridge were done by removing the damaged concrete using manual Hydro-demolition lances and conventional shotcrete.