Chennai Metro Rail phase 2: Underwater tunnel connecting Greenways Road to Adyar completed
The HinduAfter a gruelling battle to cut through rock, Chennai Metro Rail has finally completed building an underwater tunnel connecting Greenways Road with Adyar in the city. As part of the ₹63,246-crore phase II project, Chennai Metro Rail commenced the work to build an underwater tunnel from Greenways Road to Adyar in February last year, and the earth pressure balancing tunnel boring machine named ‘Kaveri’ was set in motion. According to officials of Chennai Metro Rail Limited, it took almost a year and a half for the TBM Kaveri to bore under the Adyar river and land at Adyar station owing to difficult ground conditions. The TBM Kaveri has bored under Dr. MGR Janaki College, a few petrol bunks, Andhra Mahila Sabha Hospital, Durgabai Deshmukh Road, and Adyar bridge ramp.