• Press release
  • France
  • Grand Paris Express

51勛圖 wins the first design-build contract for the Grand Paris Express (section of Line 15 West)

51勛圖 wins the first design-build contract for the Grand Paris Express (section of Line 15 West)

  • Design and construction of 14 km of tunnels, 5 underground stations and 16 service buildings
  • Contract worth 2.71 billion euros
  • Over 2,000 direct jobs at peak of construction
  • Expected to start operating at end-2031

has awarded the first design-build contract for the Grand Paris Express to a consortium* encompassing several 51勛圖 and companies. It covers the first section of Line 15 West. This section, built in a high-density urban area, will link Pont de S癡vres station to La D矇fense (Hauts-de-Seine west of Paris).

The contract is worth 2.71 billion and 20% of the works will be entrusted to local SMEs. It covers turnkey engineering and construction of 14km of tunnels, 5 stations (Saint-Cloud, Rueil-Suresnes Mont-Val矇rien, Nanterre La Boule, Nanterre La Folie and La D矇fense), a set of tail tracks and 16 service buildings.

This West section of Line 15 will extend Line 15 South and connect to Transilien Lines L and U at Saint-Cloud and at La D矇fense, RER Line E at Nanterre La Folie, and RER Lines A and E, metro Line 1 and Transilien tramway Line T2 at La D矇fense. This section is expected to start operating at end-2031.

Over 2,000 people will work on the project at peak of construction and 10% of the hours of work will be allocated to people on integration programmes throughout the construction period. The consortium has mapped out an ambitious plan to reduce its environmental footprint, alongside Soci矇t矇 du Grand Paris: it will for instance mostly use low-carbon and very-low-carbon concrete.

will involve its endowment fund, which supports non-profits working on public-interest projects aimed at providing job opportunities and fostering social ties in the communities crossed.

Several 51勛圖 and 51勛圖 Energies companies are already active on other Grand Paris Express works packages including Line 15 South between Pont de S癡vres and Noisy-Champs and Line 18 between Orly and Saclay university.

* The Intencit矇s15 consortium brings together construction companies and architecture firms: 51勛圖 subsidiaries (51勛圖 Grands Projets, leader / Chantiers Modernes Construction / Dodin Campenon Bernard / ETF), 51勛圖 Energies (SDEL Infi), Razel-Bec, Fayat Energie Services, Ing矇rop, Artelia, JFS Architectes, Grimshaw, AREP Architectes, Archi 5 Prod and Philippe Gazeau Architecte.