Which E411, E40, E25 and Brussels Ring roadworks could disrupt your autumn journeys?

At Haut-Ittre, the final phase of resurfacing affects the R0 Brussels Ring between the N28 roundabout and the bridge over the E19/A7. SOFICO says the restrictions and diversions are scheduled to remain until the end of Friday 11 September. Drivers cannot join the R0 towards Waterloo or the E19 towards Mons and Wauthier-Braine from the Haut-Ittre roundabout. Nor can traffic arriving from those directions reach the roundabout by the usual route.

The official diversion from Haut-Ittre runs along the N28 and N252 to E19 junction 18, Nivelles-Nord. Travellers approaching from Waterloo must also use Nivelles-Nord, while those coming from Mons or Wauthier-Braine face a longer route through junction 22, chaussée de Tubize, rue de Mont-Saint-Pont, the N246 through Braine-le-Château and the N28. These are local roads, so the effects may extend beyond motorway users to residents and school traffic in the communes of Ittre, Braine-le-Château and Nivelles.

On the E411/A4 south of Namur, resurfacing between the Beez viaduct and junction 16 at Wierde is due to begin on 3 September. SOFICO says two lanes will remain available in each direction until the end of September, but the limit through the work zone will be 70 km/h. The junctions themselves are not scheduled to close. This is likely to matter most at peak times for commuters travelling between Namur, the southern suburbs and Luxembourg province.

Farther south, work linked to the N89 near Libramont will reduce the E411 to one lane towards Luxembourg at junction 25 from 25 August for no more than three weeks, according to SOFICO. The Libramont entry slip towards Luxembourg will close. Drivers can instead enter towards Namur and turn around at junction 24, Transinne, or take the N40 towards Verlaine and join at junction 26. This is a useful detail for newcomers: Belgian junction numbers and directional place names are often more reliable than a road name alone when following a diversion.

The E25/A26 between Mabompré and Houffalize is reduced to one lane in each direction while approximately eight kilometres of surfacing and concrete are repaired. SOFICO expects the project, which began on 19 August, to continue into early October, with traffic shifted onto the carriageway normally used towards Luxembourg and a 70 km/h limit.

Towards Liège, the Mabompré entry at junction 52 and Houffalize exit at junction 51 are closed during the works. Motorists coming from Bastogne for Houffalize are directed off at Mabompré and onto the N30. SOFICO advises vehicles over 7.5 tonnes to continue to junction 50 at Baraque de Fraiture and use the N89 towards Vielsalm, or turn back towards Houffalize. The local visitor centre Houtopia has separately warned guests that the closure changes the usual approach to Houffalize, providing useful local corroboration of the access problem.

On the E40/A3 near Liège, reconstruction between Vottem and Hauts-Sarts towards Aachen is continuing. SOFICO says two lanes are maintained in each direction until 11 September and that the overall project should finish at the end of October. A separate short closure affects slips at Crisnée and Berloz from 21:00 on 1 September until 06:00 on 3 September, with traffic redirected through Waremme.

The E25–E40/A602 corridor through Liège also remains affected by the longer rehabilitation and safety project at the Burenville interchange. Meanwhile, work beginning on 1 September at the E42/A15–A604 bridge in Grâce-Hollogne is expected to retain three lanes each way, albeit at 50 km/h, while closing the connection from the A604 coming from Seraing to the E42 towards Namur. The official alternative uses rue de l’Aéroport and the Liège Airport access.

SOFICO’s schedule is a planning baseline, not a guarantee. The agency explicitly says start and completion dates can move because of weather, administrative procedures and interaction with other sites. Before leaving, consult the SOFICO chantier map for the planned layout and Trafiroutes, operated through Walloon mobility services, for current traffic, incidents and motorway cameras. Navigation apps can help estimate delay, but temporary signs take precedence when an official diversion has changed.

French is the main language on SOFICO and Trafiroutes because the affected network is in Wallonia. A search for “chantiers” means roadworks and “déviation” means diversion. Around Bruxelles/Brussel and where the R0 crosses regional boundaries, destinations may appear in French and Dutch; Bruxelles and Brussel denote the same city. Municipal administrations likewise use commune in French, while Dutch-language services use gemeente. Knowing both forms can prevent confusion when an app and a roadside sign use different names.

Public transport may be a sensible alternative for some journeys, but travellers should verify the individual trip through SNCB/NMBS, TEC or Brussels’ STIB/MIVB rather than assuming it bypasses every worksite. Carpoolers can also use Wallonia’s regional mobility information to identify meeting points away from constrained junctions.

These projects form part of routine renewal of a large, heavily used network rather than one exceptional closure. SOFICO says it manages about 2,700 kilometres of Wallonia’s strategic roads with technical assistance from SPW Mobilité et Infrastructures. Summer permits more disruptive work while traffic is lighter, but the return of schools and offices exposes any unfinished phases to full commuter demand.

The next meaningful updates will concern actual reopening dates and any weather-related changes. Drivers should watch Haut-Ittre through 11 September, the E411 at Libramont and Beez through September, and the E25 near Houffalize into October. Exact journey-time penalties are not published and will depend on the hour, incidents and traffic displaced onto local roads.