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Kolkata East-West Metro Line: Final stretch of 800 meters is halfway completed
The Tunnel Boring Machine Urvi excavating the risky final stretch of Kolkata East-West Metro Line has reached the halfway in boring. The TBM Urvi has bored 425 meters of the 800 meters laying 283 rings.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://timesofindia.indiatimes.com/city/kolkata/urvi-halfway-through-last-leg-of-e-w-metro-tunnelling/articleshow/81957204.cms
Urvi halfway through last leg of E-W Metro tunnelling | Kolkata News - Times of India
timesofindia.indiatimes.comKolkata: Tunnel borer Urvi has now completed half of its journey towards building the final 800m west-bound tunnel of the East-West Metro.