The project to install a noise barrier along the E411 is progressing. The Municipal Administration of Walhain has released a provisional schedule updated on September 28, 2026, outlining key steps in cooperation with the Public Service of Wallonia (SPW).
Completed stages include the transmission of the complete technical file to the SPW on July 4, 2026, and its response in September 2026 with requests for modifications to the tender dossier.
Upcoming phases involve carrying out the requested modifications in early October 2026, followed by the launch of the final tender procedure at the end of October 2026. The contractor appointment and the start of metal component fabrication are scheduled for the end of 2026.
Early 2027 will see the commencement of preparatory works on-site, including necessary tree felling, site preparation, and waterproofing of the bridge deck. The noise barrier installation is planned for the first half of 2027.
This schedule is indicative and may be adjusted based on administrative procedures and technical site constraints. The Municipal Administration will keep citizens informed of the project's next steps.
