On the 29/02/2020 the TBM EPB S50 built by Terratec broke through at Arnavutkoy-1 station after excavating 1551 metres. The work is part of the new Halkali-Istanbul Airport Metro Line. The 31km-long line, along with 6 new stations and connections, will form the western-leg of the new M11 Line that runs from the third International Airport on the European side of the city southwards to Halkali. Click here for the tunnelbuilder archive and here for the breakthrough video. 09/20.
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