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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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Repair border bridge Basel

The border bridge is an important connecting element from Basel-Stadt to Weil am Rhein (D). After more than 38 years of operation and taking into account the increasing traffic volumes as well as increased weight loads, the bridge is undergoing a comprehensive overhaul.

Project description

The border bridge is an important connecting element between Basel-Stadt and Weil am Rhein (D). Built between 1976 and 1980, the structure is 1.5 km long in total and consists of four partial bridges and an entrance/exit. About 500 meters of the bridge are on German soil. It also crosses the Deutsche Bahn and Hafenbahn rail networks at two points. Taking into account the increasing traffic figures and the increased weight load, the bridge needs to be repaired after an operating period of more than 38 years from 2018 to 2022.

 

Construction phase 1 Flexibilization

The completed works included the construction phase 1 - flexibilization of the overall rehabilitation of the bridge object N2/925 border bridge. It also included the preliminary phase Gerber joints and construction phase 1. In the preliminary phase, the Gerber joints were strengthened. In construction phase 1, the central carriageway was repaired and the central retaining wall was replaced with a concrete beam. This subsequently allowed flexibility of the lanes for the subsequent construction phases and continuous operation. However, the live/traffic load did not change.

The main construction measures in construction phase 1 flexibilization included the following work in detail:

  • All signal gantries on the bridge were demolished.
  • The fire water lines and the associated hydrants were dismantled.
  • The center bridge/roadway slabs and center box girders underwent extensive concrete repair. The Gerber joints were strengthened and the drag slab was connected to the north center abutment. Furthermore, the center deck crossovers, the center bridge drainage system and the center retaining wall with concrete downstand were replaced.
  • The waterproofing and the pavement in the central carriageway were also renewed.
Contact

Walo Bertschinger AG
Giessenstrasse 5
8953 Dietikon 1

Service

Road construction & Civil engineering

Concrete rehabilitation and hydrodynamics

Civil engineering

Building sum
CHF 14.7 Mio.
Builder
Federal Roads Office FEDRO
Branch office Zofingen
Brühlstrasse 3
4800 Zofingen
Construction management
IG AeBo/S+P
c/o Schmidt + Partner Bauingenieure AG
Bachlettenstrasse 52
4054 Basel
Company
Arbeitsgemeinschaft Grenzbrücke
Hydrojet AG (FF)
Walo Bertschinger AG (TL / KL)
Marti AG Bauunternehmung
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