Line R Modernization: Main Electrical Connection Work Ends in Bois-le-Roi

The main phase of the underground network deployment project is complete, enhancing the reliability of the Line R.

Generic image of construction work under a railway bridge.
AI

Generic image of construction work under a railway bridge.

The Municipality of Bois-le-Roi has announced the end of the main phase of electrical connection work for the Line R modernization, marking the project's last major intervention.

The work to lay asphalt under the SNCF bridge, on Avenue de la Forêt, was finalized during the night of November 9th to 10th. This step represented the final major intervention of this large-scale project.
This project aimed to deploy a dual underground network between Dammarie-les-Lys and Bois-le-Roi to power the future electrical substation, an essential facility for the modernization and reliability of Line R.
The Municipality warmly thanks all residents and users for their patience and understanding throughout the construction period.
Finishing and restoration work will continue at a suitable pace until early 2027, particularly on Chemin des Coureurs and Chemin de Chailly.
Based on information from the official source: Mairie de Bois-le-Roi (13/11/2026)