Good news for motorists in western Île-de-France: The A14 will be free on weekdays for the entire duration of the Saint-Cloud tunnel works. Prime Minister Sébastien Lecornu announced it this Wednesday, October 21, 2026. The north bore of this A13 tunnel, located in Saint-Cloud in the Hauts-de-Seine (92), will close from November 16, 2026, until late August 2027. The A14, which runs from Paris to Orgeval in the Yvelines (78) via La Défense, thus becomes the most attractive relief route to reach the west and Normandy.
The announcement comes in a letter sent to Frédéric Duché, the senator for Eure, according to ICI Normandie. The prime minister, who also represents Eure, says he wants to avoid financially penalizing people who drive to work, and he sees it as a way to limit traffic being diverted onto the smaller roads.
The north tube of the tunnel, the one that carries traffic from Paris to the provinces, dates back to the 1930s. Some sections are in unreinforced concrete, and nearly a century on, the structure needs to be reinforced. The schedule has been brought forward for a specific reason: the TBM for the future Line 15 West of the Grand Paris Express must pass under the motorway in 2027, according to Bison Futé.
Concretely, crews will pour a new reinforced concrete shell inside the existing tunnel. The closure covers the stretch between the périphérique beltway and the Vaucresson interchange. The southern tube, in the province-to-Paris direction, will remain open. But note the summer of 2027: the A13 will be closed in both directions in July and August for works on the Saint-Cloud viaduct. We detailed the entire project in our article devoted to the fermeture du tunnel de Saint-Cloud jusqu'en août 2027.
So far, the state had only planned a 50% discount at the Montesson toll on the A14, reserved for toll transponder subscribers. This offer, marketed by Bip&Go, applied from Monday to Friday, in the Paris-to-province direction. A gesture judged insufficient by several Norman and Île-de-France elected officials, as well as by user groups who have been calling for toll-free access via a petition.
Their argument boiled down to one line: the A13 is toll-free on this stretch, so why pay for the alternate route? Especially since the A14 ranks among France’s most expensive motorways per kilometre. The weekday toll exemption is aimed at making this corridor more appealing, according to the prime minister, so it can absorb part of the roughly 80,000 vehicles that use the tunnel each day.
Yes, the toll remains in effect on weekends and public holidays. On weekdays, no subscription is required for Class 1, 2 and 5 vehicles. The toll-free period applies in the Paris-to-province direction from November 16, 2026, to the end of June 2027, then in both directions in July and August 2027. When a journey is still subject to a toll, the free-flow toll must be paid within 72 hours on Sanef, without a toll tag.
To plan your journeys, the easiest option is to check the diversion routes published by Bison Futé and real-time traffic conditions on Sytadin. The prefect has also planned a restricted traffic zone to prevent the streets of Saint-Cloud, Meudon or Boulogne-Billancourt from becoming shortcuts.
If you can leave the car at home, Île-de-France Mobilités can calculate a rail or bus route, with lines L and U departing from Saint-Cloud station. Also consider checking our update on transports disruptions in Paris and Île-de-France, refreshed every week.
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Dates and Opening Time
From November 16, 2026 to August 31, 2027
Official website
www.ecologie.gouv.fr
