https://www.youtube.com/watch?v=EZSjPFep1_c

Łódź Cross-City Tunnel project is not short of controversies. Consortium members falling into troubles and replaced. TBM deliveries late because of coronavirus. All with project delays. Already one year delay announced Original completion date for the completion of the railway tunnel was end-2021, and it was delayed to "sometime in 2022".

But now tunnelling is moving in good pace, The tunnel boring machine Katarzyna is laying 6 rings a day. That is 9,6 meters of progress on a day.

The TBM Katarzyna has already bored 300 meters, according to TVP. Fingers crossed!

https://lodz.tvp.pl/57767025/tunel-srednicowy-katarzyna-wydrazyla-300-metrow