INDIA’S 1ST UNDERSEA TUNNELS

  • India’s first undersea twin tunnels in south Mumbai are close to completion.
  • The tunnels start near Girgaon, extend north under the Arabian Sea, Girgaon Chowpatty and Malabar Hill, and end at Breach Candy’s Priyadarshini Park.
  • It is 2.07-km long which are are a part of the Mumbai Coastal Road Project (MCRP) being built by the Brihanmumbai Municipal Corporation (BMC).
  • The 10.58-km MCRP links Marine Drive to the Bandra-Worli Sea Link and is just one part of the Coastal Road project.
  • The tunnels run 17-20 m below sea level.
  • A nearly 1-km stretch lies under the sea.
  • Resembling the shape of the Queen’s Necklace (the famous C-shaped Marine Drive promenade) the tunnel entry and exit points will have fiberglass facades.
  • Another highlight of the project is the use of the largest ever tunnel boring machine (TBM) in the history of India.
  • Named Mavala, the TBM weighs more than 1,700 tonnes and is nearly 12 m tall.
  • It is manufactured by a Chinese company.

SOURCE: THE HINDU, THE ECONOMIC TIMES, PIB

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