Willemen Groep
Boerenkrijgstraat 133, BE - 2800 Mechelen
tel +32 15 569 965,
R41 - Aalst

Project Details

Civil Engineering
Road construction
General roadworks
Asphalt works

Franki Construct
Willemen Infra

9300 Aalst
Oost-Vlaanderen BE

Agentschap Wegen en Verkeer Oost-Vlaanderen, Stad Aalst

Temporary partnership
Franki Construct, Willemen Infra

Construction period 
5 years 9 months

Start work 

End of work 

Project website


Work on this viaduct was completed in May 2021, finalising the redesign of the Aalst ring road. The new R41 is not only smoother and safer, but can also handle higher volumes of traffic.

Over the past few years, the R41 section between the Kwalestraat junction and Verbrandhofstraat has undergone a complete transformation. Three dangerous intersections were redesigned to include new (bicycle) tunnels that separate local and through traffic. In addition to the tunnels, service roads have also been built. Entry and exit slip roads to the tunnels will be provided between Gentsesteenweg (N9) and Raffelgemstraat. A square has also been laid out on the roof of the Raffelgemstraat tunnel.

Roundabouts have been built at the R41/N9 and R41/Raffelgemstraat intersections. The R41/Merestraat intersection was reconstructed at a different location, and once again, bicycle tunnels were added. Gentsesteenweg was redeveloped between Welvaartstraat and Sinte-Annalaan, and wide bicycle paths, new pedestrian pathways, and a separate sewer system were added. The superstructure and substructure of the R41 viaduct between Ledebaan and Verbrandhofstraat were also fully cleaned up and renovated. Sewer systems were fully renovated everywhere, together with all footpaths and street furniture. Finally, we also carried out structural maintenance on the R41between Korte Vooruitzichtstraat and Ledebaan, and between Kwalestraat and Merestraat.

Franki Construct

Kartuizersweg 1
2550 Kontich (Belgium)
tel +32 3 821 16 80

Since 1998 Franki Construct has been part of Willemen Groep, the largest family construction group in Belgium.
Willemen Infra

Booiebos 4
9031 Drongen (Belgium)
tel + 32 9 282 60 30

Willemen Infra is a leading, Belgian road construction company with a regional presence in both Flanders and Wallonia. An important asset is that we have all aspects of the construction process under our own management and thus fully control the execution. Moreover, our team of 1,000 well-trained and experienced employees are willing to work at night and over the weekend to make sure they get everything done in time. In addition, thanks to our own COPRO-certified production and recycling sites, we are one of the leading producers for asphalt and road concrete.