The work

The latest news

Published on 2025 July 07

1 min reading

The new flyover is laid!

Updated on 2025 May 27

1 min reading

Removal of the bridge over Avenue Lefebvre in Poissy

Updated on 2025 May 13

1 min reading

Drilling in progress on the embankment of the old railway line in Poissy

The main stages of the work

Aujourd'hui

2021-2025

Travaux concessionnaires

Aujourd'hui

2025

Les travaux préparatoires

2026-2027

Les travaux d'infrastructure

2028

Les essais et la marche à blanc avant la mise en service

Work by sector

Perspective of the passage of the Mare aux Boeufs in the forest of Saint-Germain

Forest of Saint-Germain south

Rue F Levebre entrance poissy

Poissy La Bruyère

Poissy Centre - Gambetta

Poissy Europe

Poissy - Saint-Exupéry district

Photo showing the installation of the new Saut-de-Mouton bridge over the tracks of the RER A, line J and the Normandy lines between Poissy and Achères.

Forest of Saint-Germain north