This Thursday, September 7, tunnel boring machine Florence (one of the 4 TBM tunnelling Line 17) has completed its second tunnelling for the Line 17 of Grand Paris Express. The first tunnel was 3,4 km long and the second one was 2,7 km long. With this, more than 15 km of tunnelling done for Line 17 marking the passing of halfway for 26,5 km of tunnelling required for Line 17 leaving only 11,5 km of tunnelling!

https://www.societedugrandparis.fr/actualites/plus-moitie-chemin-parcouru-sur-ligne-17-0