The Flemish government has officially greenlit a comprehensive renovation project for the Quatre-Bras tunnels, located at the intersection of the Ring and the Tervueren Avenue. This infrastructure overhaul, which is expected to address both structural needs and modern safety requirements, is currently slated to begin in 2029.
Did You Know? The Quatre-Bras tunnel derives its name from a historical local inn, much like the nearby Léonard intersection, which was named after an establishment known as “Chez Léonard.”
A Strategy of Public-Private Collaboration
To execute the project, authorities are utilizing a public-private partnership (PPP) model, specifically a “Design, Build, Finance and Maintain” (DBFM) formula. Under this arrangement, a private partner will be tasked with the design, construction and financing of the project, as well as the long-term maintenance of the infrastructure. The government will provide a fee over an extended duration to cover these services.
Minister of Mobility Annick De Ridder (N-VA) states that this approach allows for more efficient action while integrating long-term quality and maintenance guarantees. This model has previously been applied to other complex regional projects, including the Zaventem interchange, the upcoming Ring North redevelopment, and the planned A8 tunnel in Hal.
Expert Insight: The transition toward long-term DBFM contracts reflects a broader trend in infrastructure management. While these partnerships aim to accelerate project delivery and ensure consistent upkeep, they also lock public authorities into multi-decade financial commitments, shifting the operational burden to private entities.
Broader Impacts on the Brussels Ring
The Quatre-Bras renovation is part of a wider series of infrastructure challenges for commuters along the eastern section of the Brussels Ring. The tunnel, which serves approximately 100,000 vehicles daily, will require careful coordination alongside other major works in the area.
Authorities are preparing for a significant renovation of the Ring-North, spanning the highway between the two E40 junctions from Zaventem to Grand-Bigard. This project is scheduled to be completed in phases, with the initial “Zaventem zone” segment beginning in January 2027 and expected to run until December 2033. These efforts coincide with several other ongoing projects, including the renovation of the Vilvorde viaduct and the construction of the luchthaventram, both of which are projected to continue through 2031.
Frequently Asked Questions
When will the renovation of the Quatre-Bras tunnels begin?
The current plan aims for the launch of the renovation works in 2029, with the selection process for the project expected to begin this year.
What is the purpose of the “DBFM” formula being used?
The DBFM (Design, Build, Finance and Maintain) formula is intended to facilitate faster project execution while ensuring that the private partner remains responsible for quality and maintenance over a long period.
How will the upcoming construction affect the Ring-North?
The Ring-North will undergo a total redevelopment between the two E40 junctions. Work will be conducted in a counter-clockwise direction, starting with the Zaventem sector in 2027, with the entire project anticipated to conclude in December 2033.
How will these overlapping construction timelines alter your daily commute over the coming years?
