Public transport users in the Île-de-France region should brace themselves for significant disruptions this weekend, as the RATP and SNCF networks undergo various construction projects. On Saturday, May 10, 2025, and Sunday, May 11, 2025, commuters will face interruptions across multiple metro and RER lines, coinciding with a planned strike by transport unions.
Starting with the metro, Line 10 will have no service between Duroc and Boulogne Pont de Saint-Cloud, while Line 13 will be interrupted between La Fourche and Asnières – Gennevilliers Les Courtilles. These interruptions are part of ongoing maintenance works that aim to enhance the reliability of the network.
For RER users, Line B will see a surge in passenger numbers at La Plaine Stade de France due to a concert by DJ Snake at the Stade de France, which is expected to draw large crowds. Meanwhile, Line C will experience disruptions, with no trains running between Champ de Mars - Montigny Beauchamp and Pontoise, and limited service until 5 PM between Brétigny - Dourdan and Brétigny - Saint-Martin d’Étampes.
On Line D, fewer trains will be available between Goussainville and Melun. Service will be halted entirely between Creil and Orry-la-Ville, and trains will not stop at Le Vert de Maisons in either direction, nor at Maisons-Alfort towards Melun/Corbeil. Line E will also face interruptions, with no service after 10:25 PM between Nanterre-la-Folie and Villiers-sur-Marne - Le Plessis-Trévise, as well as between Nanterre-la-Folie and Tournan.
Transilien Line J will have no trains between Paris Saint-Lazare and Mantes-la-Jolie via Poissy, and trains heading towards Normandy will not serve Mantes-la-Jolie on Sunday. On Line L, fewer trains will be running between Paris Saint-Lazare and Nanterre Université, while Line N will be entirely suspended on Saturday and will have limited service until 4 PM on Sunday between Paris Montparnasse and Versailles Chantiers.
Additionally, Line P will see service interruptions starting from 10:30 PM on Saturday, with further disruptions on Sunday evening. Tram T2 will also be affected, with no service between Porte de Versailles and Suzanne Lenglen.
These disruptions come in the wake of a strike called by the CGT-Cheminots and SUD-Rail unions, which is expected to continue into June. The strike aims to address ongoing concerns regarding working conditions and service reliability, prompting many commuters to seek alternative travel arrangements.
In the Essonne department, residents are dealing with additional transport issues, particularly affecting the southern region. As of May 9, 2025, and until Sunday at 5 PM, there are no trains running on the RER C between Brétigny and Etampes, as well as between Brétigny and Dourdan. Replacement buses have been organized to assist affected passengers.
These transport challenges are exacerbated by a significant construction project on the RER C, where the 157-year-old Pont des Souverains is undergoing extensive renovations. SNCF Réseau is replacing the bridge’s deck, which supports tracks for 1,600 trains daily heading towards Gare Saint-Lazare. This work, which began during the May 1 long weekend, is expected to impact service until May 11, 2025, particularly on the Champ-de-Mars - Pontoise branch of the RER C.
The Pont des Souverains, built in 1868, is a critical piece of infrastructure for the region’s rail network. The replacement project involves the installation of 25 new decks, each weighing between 25 and 60 tons, and is estimated to cost around 34 million euros. The entire project will be completed by November 2025, although further disruptions will occur during weekends in June, July, and August.
To facilitate this extensive renovation, SNCF Réseau has developed an innovative tool named Léonard, which is a rail-mounted elevating table designed to safely and efficiently replace the bridge’s components. This method reduces the need for large cranes and minimizes the disruption to surface rail services, ensuring that less than 10% of trains on lines L and J, as well as Normandy TER trains, will be canceled during work weekends.
While the construction and strike-related disruptions present significant challenges for commuters, transport authorities are advising passengers to check schedules and consider alternative routes where possible. The ongoing efforts to improve infrastructure are essential for maintaining the long-term reliability of the region’s transport network.
As the weekend progresses, commuters are encouraged to stay informed through the RATP and SNCF websites, as well as the Île-de-France Mobilités app, which provides real-time updates on service changes and replacement bus schedules. With a little patience and planning, passengers can navigate these disruptions and continue their journeys.
