12.7 m in diameter Herrenknecht TBM is lowered in pieces to 30 meter deep shaft in ul. Stolarska / Odolanowska. It is one of the two Herrenknecht TBMs that will bore tunnels connecting Łódź Fabryczna and Łódź Kaliska and Łódź. Once assembled, it will bore 2 parallel tunnels of 3 kilometers.

https://inzynieria.com/tunele/tunel_srednicowy_w_lodzi/wiadomosci/59931,tunel-srednicowy-w-lodzi-kolejna-maszyna-tbm-w-komorze-startowej