As vehicles zip past one of the busiest areas of the city, the Adyar bridge, a 500-tonne gigantic machine operated by a bunch of workers quietly drills the earth. The Hindu gives you the first glimpse of one of the underwater tunnels built by Chennai Metro Rail for the upcoming phase II project. Of the twin underwater tunnels created between …
After 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 …