The year 2025 will be punctuated by launches and deliveries of construction sites In France. The writing of mesinfos selected ten major projects which will mark the four corners of the country, such as the development of three swimming sites in the Seine (Île-de-France), the XXL renovation of the A7 south of Lyon (Rhône), or even the reopening of the tunnel road of Tende which connects France to Italy.
1. Facilities for swimming in the Seine in summer 2025
During the Paris Olympic Games, the quality of the water in the Seine forced the postponement of several training sessions and events. And although the subject continues to worry part of the public, the swimming in the Seine in Paris is still announced for thesummer 2025.
Development work will begin in February to prepare the three swimming siteswhich will open in July, at Bercytowards the metro Sully Morland at the level of the Marie arm, and at the height of the bridge Bir Hakeimon the Grenelle arm.
The facilities will notably include pools surrounded by pontoons in the Seine. Each of the sites will also be equipped with changing rooms, showers and even solariums.
2. Falaise de la Praz: reopening of the RD 1006 and the France-Italy line
Since a landslide 15 000 m3 of rocks on August 27, 2023, the Praz cliffin Maurienne, is undergoing major security work. In December, the project was completed directly above the railway tracks.
During the 1is quarter 2025, these are the security work of the cliff above the RD 1006 which should be finalized. Finally, the work of restoration of the road, located below the cliff, should be completed by 1is semester 2025.
The RD 1006 should reopen at spring 2025 and the railway line between Italy and France will make its return in next March.
3. Grenoble: the Rondeau interchange operational in 2025
In Grenoble, the Rondeau interchangeshould completely come into service at the end of first quarter 2025. At the crossroads of theA480 and the southern ring roadit completes the redevelopment of the A480 motorway, launched in March 2019.
A central transit node of 1.5 kilometers, the Rondeau interchange was often described as a “noodle dish” when it was created fifty years ago. In question: he never managed to make traffic flow more smoothly.
The work undertaken should make it possible to decongest daily flows and improve service to the Grenoble metropolitan area, which sees approximately 100,000 vehicles travel every day on its southern ring road.
4. Lyon: the start of an XXL renovation on the A7
Since January 5, 2025, the first phase of major renovation work has begun on the Pierre-Bénite viaducts (Rhône), key works of the A7 motorway. A project that is essential for these works inaugurated in 1966, which see more than 150,000 vehicles.
The Center-East Dir plans in particular to repair certain parts of the structure, to replace the waterproofing/coating complex, the cornices and the road joints, or to install metal retaining devices. Cost of work: 14 million eurosfinanced by the State.
Significant disruptions are expected during the work, with lane closures and several days where the circulation sera completely interrupted. The end of the project is expected for 2026.
5. Delivery of the first cable car in Île-de-France
A first. Fin 2025the first cable car in Île-de-France will complete the transport offer of the Ile-de-France network. THE “Cable C1” will serve five stations spaced 500 to 1,800 meters apart to connect the cities of Villeneuve-Saint-Georges, Limeil-Brévannes et Valenton at Metro 8 Créteil – Pointe du Lac.
A new mode of transport which should improve travel for residents of Val-de-Marne with a frequency of less than thirty seconds between two cabin passages. Approximately 11,000 travelers are expected during commissioning.
-6. The Athletes’ Village is transformed into a residential area
The former Olympic village for the Paris 2024 Olympic Games in Saint-Denis (Île-de-France), where athletes and journalists have been staying, is expected to host students for the back to school 2025. Also, the other housing, largely designed for families, will be delivered during the year. Some residents have already moved in.
“Ultimately the transformation work is minimal because we had designed the spaces with a view to making housing“, explain Constantin Lécossetechnical director of Vinci Immobilier. In its entirety, the former Olympic village will be transformed into 2,800 housing units, two school groupsof the offices for 6,000 employees, 6 hectares ofgreen spacesor even in shops.
For now, these transformations are being awaited by the first inhabitants, who note that the place is deserted and very calm. An atmosphere far from the excitement of the Games that the village experienced last summer.
7. Tende Tunnel: a reopening from June?
The Tende road tunnel, which ensures the Franco-Italian connection between the valleys of theRoya and de la Vermenagna, could reopen as early as June, according to Philippe Tabarot, Minister of Transport. Indeed, after more than ten years of work, the project should be completed.most likely“end of March,” he said. “An opening.”in test mode” will then be operated during 75 days before a “final inauguration end or current June“.
The cost of the Tende tunnel construction site has exploded, going from 170 to 255 million eurosdont 41,65% borne by France. A cost which does not include the repair of the old tunnel tube, which avoids an alternating passage by offering two accesses to go from one country to another.
This is why initially, traffic will be alternating during the June reopening. For a full reopeningyou will have to wait until 2027.
8. Notre-Dame and Saint-Véran Cathedral: reopening in February
The Notre-Dame and Saint-Véran cathedralRomanesque-style monument located in Cavaillon in the Luberon Regional Natural Park, will reopen its doors on February 17, 2025 after five years of work. Before that, the building must still benefit from a final phase of work to restore its decorations and its cloister.
In the heart of the old town, the Notre-Dame and Saint-Véran cathedral dates from the end of the XIe century. She was then raised in the 12the and enlarged between the 16the and the 18the century by theaddition of chapels lateral.
In total, the cost of the cathedral renovation project amounts to 12.1 million euros. The western facade, the apse, the choir, the bell tower, the interior of the building, the furniture, the decorations, and even the paintings, were notably repaired and reworked by specialists.
Cathedral opening hours from 02/17 to 12/31/2025: Monday to Saturday, 9 a.m. to 12 p.m. and 2 p.m. to 5 p.m. Sunday is reserved for worship.
9. La Lourdes, start of demolitions in the Ophite district
A vast urban renewal project has been underway for several years in the Ophite district of Lourdes (Hautes-Pyrénées). The objective: to build new, more modern and energy-efficient buildings.
The program is divided into four phases of rehousing and of demolitionswhich will spread from 2025 to 2029 as follows:
- Phase 1 : demolition of 56 accommodations of buildings B, D, and F, scheduled for early 2025.
- Phase 2 : demolition of 156 housing units C, E, R, and L, scheduled for late 2026 or early 2027.
- Phase 3 : demolition of 144 accommodations of buildings A and G expected for 2028.
- Phase 4 : demolition of 195 accommodations of buildings H, I, and K, planned for 2029.
10. A bridge built by Napoleon renovated in Bordeaux
The stone bridge in Bordeaux (Gironde), built by Napoleon I between 1810 and 1822, became very fragile. This is why important consolidation work will be operated from summer 2025 to secure the structure.
The objective: install micropiles at a depth of forty meters, re-waterproof the bridge, renovate the masonry and protect the foundations. The work is expected to last three years to be completed in 2028. Estimated cost of the project: 50 million euros.
