France - Breakthrough of the TBM Marguerite de Catellan for the Toulouse metro

15/04/2025

On March 24, 2025, the Horizon consortium, composed of Bouygues travaux publics (leader), Soletanche Bachy and Bessac celebrated the break through of the TBM Marguerite de Catellan in the Limayrac - Cite de l’espace station, Lot 4, line C of the Toulouse metro: click here for the video.

To date, the TBM which started from the Montaudran Gare - Piste des Gean station, has excavated 2.7 km; its breakthrough is expected in the autumn in the future Cote Pavee station; in November it will arrive at the Saint-Sauveur shaft, concluding the excavation of its 4.2 km section.

Click here if you want to track the TBM and for further information please click here and fr/14 for tunnelbuilder archive.