Another milestone has been reached on the construction site of line 16, lot 3 in Champs-sur-Marne in Ile-de-France! Last week TBM Maud, named in honor of Maud Tallet, mayor of Champs-sur-Marne, placed its first rings and began to dig. It will go up in a northerly direction to the Bel-Air site located in Chelles municipality, where its arrival is estimated by the end of 2023. The contractor is the Joint Venture Razel-Bec, Sefi-Intrafor and Fayat Metal. For further information please click here and fr/127 for tunnelbuilder archive. Visit https://www.societedugrandparis.fr and https://www.razel-bec.com/en/.  24/22.