Chennai Metro | CMRL finishes tunnelling work in North Chennai

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Chennai Metro Rail Underground Project

Chennai: The Chennai Metro Rail Limited (CMRL) on Tuesday finished its tunnelling work to connect North Chennai with the rest of the city through metro train services.

Engineers of Afcons Infrastructure achieved breakthrough by completing boring work for the second of the two tunnels. A tunnel boring machine drilled through the fibre reinforced concrete wall and entered Korukkupet underground metro station.

Chennai Metro Rail

The 9km phase-1 extension project from Washermenpet to Wimco Nagar, estimated to cost Rs 3,770 crore, is expected to be ready by 2019.

A CMRL official said the tunnel was completed three months ahead of the deadline. The tunnels built in North Chennai will connect a two kilometer stretch with three underground stations- Washermenpet, Theagaraya College and Korukkupet.

From Korukkupet, a ramp will be built to connect the rest of the line up to Wimco Nagar which will be an elevated corridor.

Construction for the underground line was launched in July 2016 and the first of the two tunnels was completed in September 2017. “This is our 19th tunnel breakthrough for Chennai Metro,” said an Afcons engineer.

While tunnelling work is complete, other civil work in the tunnels and stations will continue.

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