This Tuesday, 24 January 2023 marks the end of 3 years, 2 months and 24 days of digging to complete the 19 kilometres of tunnel on line 16 batch 1, as well as the start of lines 15 and 17 and the connection to line 14 North at Saint-Denis - Pleyel.
 
Throughout their journey, the 6 tunnel boring machines involved in this project will have laid 9,720 rings, i.e. 66,799 voussoirs.
 
Congratulations to the Eiffage Génie Civil teams involved in this major project!
 
Société du Grand Paris
Egis
Tractebel
Herrenknecht AG