First Ever Underwater Metro In India Starts in December
METRO TRIAL RUN
The 16.34 km east-west metro segment between Esplanade and Howrah Maidan, which included the section beneath the Hooghly river, began its safety trial on Thursday.
This is the first time a railway would cross a river in India.
While 10.8 km of the corridor are subterranean, the 520 m underwater tunnel that forms its most important portion is the project’s standout feature.
THE MAIN ATTRACTION
The building of twin tunnels that span the river’s width is the main draw of the east-west metro project.
A DIFFERENT EXPERIENCE FOR TRAVELLERS
This will be a unique experience for commuters.In less than a minute, they will go nearly half a km beneath the surface.Riders are waiting for a 27-minute ride from Sector V to Howrah via the Hooghly.
The river tunnels have been built in a way that makes it impossible to tell them apart from the land, much as the Eurostar trains that travel through the channel tunnel between London and Paris.
DEPTH OF THE TUNNEL
The trains will run 26 metres below ground level while the tunnel’s bottom is 36 metres above the lake. When earthquakes occur in a seismic zone, the material is protective.