Our catenary experts at the heart of the revival of the Nantes tramway
ETF a remporté en février dernier, un vaste projet de travaux caténaires pour la modernisation et l’extension du réseau de tramway nantais. L’objectif : accompagner la création des futures lignes 6 et 7 et reconfigurer la ligne 1, en lien avec le développement urbain de l’agglomération.
This major project is being carried out by a consortium comprising ETF (lead contractor), LP Urbain, GTM Ouest and Bouygues (SST), on behalf of Nantes Métropole and SEMITAN.
Three sectors, one goal: smoother mobility
The work is divided into three strategic areas:
- Sector 1 – Quai de la Fosse / Pont Anne de Bretagne: Renovation of the existing platform, creation of a tramway junction and crossing of the Loire via a new structure.
- Sector 2 – Île de Nantes: Construction of new infrastructure, widening of the Pont des Trois Continents bridge.
- Sector 3 – Rezé: Creation of a new tramway route to support the development of the neighbourhood.
Key figures for the project
The project involves significant human and technical resources:
- 1.2 km of redeveloped platform
- 2.6 km of new platform
- 168 LAC posts installed (and 27 removed)
- 11 km of contact wire laid
- 150 LAC foundations, some of which are micropile foundations
- Rail-road fittings installed
- Installation of lighting on LAC posts
This project also takes into account environmental and local acceptance issues, with optimised measures to limit disruption in densely populated areas.
A project serving the region
By modernising its network, the city of Nantes is strengthening its commitment to smoother, more sustainable and inclusive mobility. As a key player in rail mobility in France, ETF is providing its technical expertise to meet this challenge, with a particular focus on safety, quality of execution and inter-professional coordination.
The work will be spread out until July 2027, with the first phase of track laying between May 2025 and July 2026, followed by the installation of LACs from March 2026 to summer 2027.
