BudgetGuessr rankings

The most expensive megaprojects from France in our catalogue

The 25 most expensive of 25 built and under-construction megaprojects in France in the BudgetGuessr catalogue, ranked by documented cost in US dollars.

Ranking

  1. 1Flamanville Nuclear Plant, seen from the sea. Reactor 3 (EPR) in foreground, Reactors 1 and 2 in background

    Flamanville Nuclear Power Plant

    2023 · Energy$25.63 billion
  2. 2Chantier au Puits Rû de Nesle pour la ligne 15 du métro de Paris, Noisy-le-Grand.

    Paris Métro Line 15

    2020 · Railway$20.56 billionUnder constructionEstimate
  3. 3TGV TMST n°3011/2 à la sortie du Tunnel sous la Manche à Coquelles, côté Français.

    Channel Tunnel

    1994 · Tunnel$14.54 billion
  4. 4Project decisional and approbation state and work progress for the new Turin–Lyon train line.

    Turin–Lyon high-speed railway

    2033 · Railway$14.26 billionUnder constructionEstimate
  5. 5Travaux de construction de la gare d'Antonypôle (ligne 18 du métro de Paris), à Antony.

    Paris Métro Line 18

    2020 · Railway$4.5 billionUnder constructionEstimate
  6. 6Alstom Coradia Liner trainset #613 with CDG Express livery at Drancy station during trials.

    CDG Express

    2026 · Airport$2.94 billionUnder constructionEstimate
  7. 7The LGV Est high-speed railway line at track kilometer 217, near Gare Meuse

    LGV Est

    2016 · Railway$2.18 billion
  8. 8These photographs were taken during the EMOI campaign which took place in the wind farm off the coast of Fécamp, Normandy. This mission was carried out jointly by the scientific teams and nautical resources of LERN and ENSTA. The photographs notably show the Mélité, an ENSTA vessel, deployed alongside the Delphy, a LERN vessel, to perform measurements at sea. The objective of the EMOI campaign is to acquire in situ observations to better describe the physical processes that develop in the wake o

    Fécamp Offshore Wind Farm

    2024 · Energy$2.16 billion
  9. 9Viaducte del TGV sobre la Muga pel mig del poble de Pont de Molins.

    Perpignan – Barcelona high-speed rail line

    2009 · Railway$1.53 billion
  10. 10Fahrzeug der Métro Rennes auf dem Hochbahnabschnitt zwischen den Stationen Pontchaillou und Anatole France (Linie a)

    Rennes Metro Line B

    2022 · Railway$1.41 billion
  11. 11La ligne A du tramway du réseau FilBleu, sur le pont Wilson de Tours.

    Tours tramway

    2013 · Railway$575.08 million
  12. 12Millau, eine südfranzösische Stadt im Département Aveyron mit dem Viaduc de Millau (Autobahnbrücke der A75).

    Millau Viaduct

    2004 · Bridge$490.1 million
  13. 13Charles de Gaulle Airport viewed from an aircraft

    Charles de Gaulle Airport

    1974 · Airport$338.9 million
  14. 14La Défense

    Tour Hekla

    2022 · Skyscraper$286.43 million
  15. 15Le coup d'envoi du premier match de l'OGCN à l'Allianz Riviera le 22 septembre 2013.

    Allianz Riviera

    2013 · Stadium$280.23 million
  16. 16Concorde (Paris Metro line 12)

    Paris — Line 12 — Line 12 to Aubervilliers

    2022 · Railway$256.52 million
  17. 17Le pont Gustave-Flaubert vu depuis la rive gauche de la Seine à Rouen (Seine-Maritime).

    Pont Gustave-Flaubert

    2008 · Bridge$220.61 million
  18. 18Hainaut Stadium (2013)

    Stade du Hainaut

    2011 · Stadium$104.4 million
  19. 19Le pont de Cheviré à Nantes (France)

    Pont de Cheviré

    1991 · Bridge$92.52 million
  20. 20Vue d’une rame de la ligne à la station Bellecour.

    Lyon — Line A — Line A to Vaulx

    2007 · Railway$72.64 million
  21. 21Pont de Térénez

    Terenez bridge

    2011 · Bridge$57.77 million
  22. 22Vélodrome Couvert Régional Jean Stablinski in Roubaix, im Bau befindlich (Mai 2012)

    Vélodrome Jean-Stablinski

    2012 · Stadium$32.12 million
  23. 23Stade Louis Dugauguez, Sedan (France)

    Stade Louis Dugauguez

    2001 · Stadium$14.15 million
  24. 24The Three Country Bridge at night in Huningue (France) and Weil am Rhein (Germany) next to the Tripoint near Basel (Switzerland).

    Three Countries Bridge

    2007 · Bridge$13.7 million
  25. 25Photographie prise le 26 décembre 2022 au Stade des Antonins lors du match entre le Nîmes Olympique et l'En Avant Guingamp en Ligue 2.

    Antonins Stadium

    2022 · Stadium$12.64 million

How this ranking works

This is a curated catalogue, not an exhaustive list of every megaproject. Projects are ordered by their recorded US-dollar equivalent; each detail page shows the source amount and any currency conversion. Figures are not adjusted for inflation, and construction bills, estimates, and programme costs can have different scopes. Unbuilt proposals and cancelled projects are excluded.

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