Catenary and track contract awarded for second section of Grand Paris Express metro’s line 17

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Société du Grand Paris has awarded a contract to the Colas Rail and Alstom consortium, which is led by Colas Rail, to supply the track, rigid overhead catenary system and linear equipment for the second section of Grand Paris Express metro’s line 17.

With a length of 26.5km, line 17 will stretch over 13 municipalities and link nine stations between Saint-Denis Pleyel and Le Mesnil-Amelot in less than 25 minutes, facilitating travel for nearly 565,000 inhabitants.

The Colas Rail/Alstom consortium, in charge of the second section of line 17, will supply and lay 10km of track, the rigid overhead catenary system, as well as the linear equipment between Le Bourget Aéroport and Parc des Expositions, located before Roissy. The work will take place in a tunnel, in embankments and on a viaduct over 3km.

The first works will start by mid-2024.

The Colas Rail/Alstom consortium will pay particular attention to environmental and social impacts. For example, it has committed to limiting its greenhouse gas emissions by supplying low-carbon concrete made from cement produced by reducing energy consumption, and rolled rails made from steel produced from a low energy-consumption process.

Other initiatives have been implemented such as the use of electric vehicles, the use of LEDs for tunnel lighting, the treatment of rainwater and the establishment of a treatment and recycling station for residues from the tracks concrete.