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India's first underwater metro will be launched in which city?
A)
Kolkata
B)
Bangalore
C)
Chennai
D)
Mumbai

Correct Answer :   Kolkata


In a first for the country, Hooghly River's underwater tunnel will likely be operational soon. Reports state that the Kolkata Metro Rail Corporation (KMRC) has extended its East-West corridor, which would span the Hooghly River for around 500 m, to incorporate twin tunnels.
 
The underwater metro train is one-of-its-kind and is being compared to the Eurostar, which connects London and Paris. If estimates are to go by, the train will be travelling at a depth equivalent to a 10-storey structure while submerged.

Twin tunnels have been built of 1.4 m wide concrete rings, which will make up the underwater portion of the metro train. Further, to prevent water from entering the tunnels, they have been equipped with hydrophilic gaskets.
 
According to the reports, the project has been completed at a cost of roughly INR 8600 crore, and will likely become operational by March 2023.
 
Howrah metro station will be 33m deep and will be the deepest in the nation. Currently, the Hauz Khas in the Delhi Metro is currently the deepest, with a depth of 29 m. Additionally, the tunnel will have exits for emergencies like earthquakes.

Published On : August 10, 2022
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