On 29/12/2021 TBM Lilia completed the excavation of the last 1.2 km section of the BCL in Moscow,  from the Nagatinsky Zaton station to the Klenovy Boulevard: click here (https://youtu.be/CoN4B7iagio) for the video.  The tunnel driven by TBM Lilia ran along the Nagatinsky backwater under Kolomenskaya Street at a depth of 15 to 22 m. 

Herrenknecht made the 10 m TBM to order in 2015 for Mosinzhproekt. This is the first large-diameter shield that took part in the construction of the Nekrasovskaya line , and on the BCL it laid the first double-track tunnel - from the Mnevniki station to Kuntsevskaya .  

In Moscow the Big Circle Line will now become the longest metro line in the world, overtaking the former leader - the ring line subway in Beijing. BCL is 70 km long with 31 stations, 22 of which are already working and with the remaining 9 stations where work is in full swing.

The BCL is planning to be open completely in 2023, for further more detailed information please click here for the tunnelbuilder archive and visit https://stroi.mos.ru/ and https://mosinzhproekt.ru/en.  52/21.