One week before the deadline, the Saint-Cloud Tunnel is set to close in the Paris-to-province direction on the A13 motorway, from November 16, 2026, to August 31, 2027. The closure will run from the Boulevard Périphérique to the Vaucresson interchange, in Hauts-de-Seine (92), while the province-to-Paris direction will remain open until the summer.
Disruptions also begin this Monday, November 9. Until the morning of Friday, November 13, several ramps between the A86 Duplex and the A13 will be closed at night for roadworks. And for anyone who still has questions, a public meeting will be held this Thursday, November 12, in Sèvres.
For motorists traveling to the Yvelines (78) or Normandy each day, the alternatives are taking shape. At a press conference on Thursday, November 5, 2026, Transport Minister Philippe Tabarot outlined the plan: free use of the A14, additional bus and train services, and a monitoring committee. But there is still no relief on the A86 Duplex toll, as Yvelines officials have been calling for.
The Île-de-France Road Directorate (DiRIF) is carrying out work on the connection between the A86 Duplex and the A13. According to VINCI Autoroutes, the tunnel operator, the work requires nighttime closures for four nights, from Monday, November 9, to Friday, November 13, 2026, from 9 p.m. to 6 a.m.
More specifically, the exit from the Duplex onto the A13 towards Paris will be closed for all four nights. The exit onto the A13 towards Rouen will be closed for only two nights: from Monday, November 9 to Tuesday, November 10, and from Thursday, November 12 to Friday, November 13. In the opposite direction, access to the Duplex from the A13, whether coming from Paris or Rouen, will remain closed for all four nights.
To join the A13 towards Paris or Rouen, drivers must exit at Vaucresson or Versailles, then follow the diversion signs. It’s nothing too difficult for a nighttime journey, but it’s best to allow a few extra minutes. VINCI Autoroutes also notes that this schedule may change depending on the weather or the progress of the work: checking Sytadin before setting off remains a sensible precaution.
One last chance to ask questions before the closure: DiRIF is holding a public information meeting on Thursday, November 12, 2026 at 8 p.m. in Sèvres (92). It will take place at Le Sel, in the Rotunda Room, at 47 Grande Rue.
Sèvres is one of the towns on the front line. The RD910, one of the two official diversion routes, runs through the town over the Pont de Sèvres, and residents fear traffic will spill onto the narrow streets. This is all the more concerning because the Département is already carrying out work on the Manufacture interchange, as the city of Saint-Cloud points out.
The city hall website does not specify how to register or provide a detailed programme. This meeting follows those held in recent weeks in Le Chesnay-Rocquencourt, La Celle-Saint-Cloud and Saint-Cloud, and in Versailles on November 2. If you can’t attend in person, the presentation by DiRIF posted online by Saint-Cloud already gives a good overview of the planned diversions.
The north tube of the structure dates back to the 1930s, with sections of unreinforced concrete. Recent inspections have uncovered weaknesses that, according to Île-de-France and Paris prefect Georges-François Leclerc, pose no immediate danger but will necessitate reinforcement work in the medium term. The south tube, built in the 1970s, remains open toward Paris.
The schedule has been brought forward for a very specific reason: the passage of a tunnel boring machine for the Grand Paris Express under the highway, at tunnel level, for the Line 15 West project, planned for 2027. It’s not feasible to run the machine beneath a structure that’s almost a century old without first strengthening it.
In practical terms, crews will pour a new reinforced concrete lining inside the existing tunnel. It's a large-scale civil-engineering operation, estimated at 35 million euros and financed equally by the Société des grands projets and the State.
Prime Minister Sébastien Lecornu announced on Wednesday, October 21, 2026, that the A14 will be free on weekdays for travel from Paris toward the provinces for the duration of the construction work. The measure replaces the 50% discount planned for September through Bip&Go subscriptions.
At the Montesson toll plaza, the journey between La Défense and Orgeval usually costs between 6.50 and 10.70 euros, depending on the time of day. According to Le Parisien, one commuter is estimated to have paid between 2,000 and nearly 4,000 euros over the nine months of construction work. The aim is to make this route more attractive and limit traffic being diverted onto smaller roads, a request made since the summer by Saint-Cloud town hall.
On Thursday, November 5, Philippe Tabarot added that during the full closure of the A13 in July and August 2027, the A14 will be free in both directions. The measure applies to cars and light commercial vehicles, but not heavy goods vehicles. Until then, during the months when the road is closed in one direction only, the toll exemption applies only on weekdays.
Saint-Cloud Tunnel closure: A14 to be toll-free on weekdays.
The A14 motorway will be toll-free on weekdays during the Saint-Cloud tunnel closure on the A13 in Hauts-de-Seine. Sébastien Lecornu announced it will apply for the entire duration of the works, from 16 November 2026 to the end of August 2027. [Read more]
It is the other major route for easing congestion. The Duplex A86, a 10-kilometre toll tunnel between Rueil-Malmaison (92) and Vélizy-Villacoublay (78), remains toll-priced for now. Since the summer, elected officials in Yvelines have been calling for a concession. In late September, the Yvelines departmental council, chaired by Pierre Bédier, even passed a motion calling for the tunnel to be made free or for a reduced rate of 3.50 euros per trip.
The same message is coming from Saint-Quentin-en-Yvelines. Its president, Lorrain Merckaert, welcomes the decision to make the A14 free but is now waiting for a concrete response on the Duplex. He stresses that employees who come to work in the area must not be the major forgotten group in these measures.
The minister says he is ready to make progress on the issue, but government officials have one concern: the tunnel is already congested during rush hour, and a fare cut could make the situation worse. Philippe Tabarot therefore wants to see the figures first. So there will be no free passage from November 16. A monitoring committee will track changes in traffic and, once it has enough perspective, may decide on a measure presented as compensation for users.
With up to 80,000 vehicles per day, the A13 is among the region's busiest corridors. Two detour routes have been set up from the beltway: one via the RN13 and then the A14, the other via the RD910 and then the RN118, with the possibility of linking to the A86, the RN12, the A12 and the A13 further west.
These roads are likely to get congested quickly. To prevent drivers from filtering onto the narrow streets of Saint-Cloud, Meudon, or Boulogne-Billancourt, a restricted-traffic zone will be established by prefectural decree, with the information fed to GPS apps (Waze, Google Maps) so they stop directing motorists there.
To monitor real-time traffic conditions, Sytadin and Bison Futé remain the go-to references. You can also check our daily briefing on traffic and travel in Paris.
In coordination with Île-de-France Mobilités and SNCF, bus services are being strengthened. Five additional Express A14 buses will run during peak hours, in addition to the extra services on Express coach routes using the A14, already promised by the government in its September 16, 2026 press release.
Two Express routes that run along the A13 will also get more service. Route 5117 links Pont de Sèvres with Plaisir-Grignon station in the Yvelines. Route 7815, which runs only on weekdays, goes from Saint-Cloud to the Gâtines business park in Plaisir. Both are operated by Francilité Express Ouest. The extra service on route 7815 was also requested by Saint-Quentin-en-Yvelines, which has 145,000 jobs within its boundaries. The new timetables have not yet been published. The safest bet is to check them in the Île-de-France Mobilités app before November 16.
On the rail side, the RER A and C and Transilien lines L, N, J and U are receiving enhanced maintenance to reduce breakdowns. Staff will assist passengers at several stations, including Versailles, Saint-Quentin-en-Yvelines and La Défense.
The government hopes to shift 20% of A13 users to public transport. It’s an ambitious bet: during the emergency closure in 2024, only 7% made the switch. The minister himself is not promising a miracle and acknowledges that the aim is for things to go “as little badly as possible.” To plan your journeys, our weekly roundup of disruptions gives you an overview.
It doesn’t end there. To optimize the project, the A13 will also be closed in both directions in July and August 2027 while maintenance work is carried out on the Saint-Cloud viaduct. The A14 will be free in both directions to ease congestion, but holiday journeys to the Normandy coast will need to be planned in advance.
The sector had already experienced a painful episode in spring 2024, when it was unexpectedly closed after a crack appeared as a result of ground movement. This time, the closure is planned, and there are a few days left to prepare. All the orders and practical information have been published on the websites of the Île-de-France prefecture and the Hauts-de-Seine prefecture.
Dates and Opening Time
From November 9, 2026 to August 31, 2027
Saint-Cloud Tunnel closure: A14 to be toll-free on weekdays.
