7 months ago
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Chennai Metro Rail has created yet different passageway successful corridor 3 of the signifier II task and yet linked Greenways Road with Mandaveli connected Saturday (October 18, 2025). Earlier, Chennai Metro Rail finished gathering a passageway successful corridor 3, which connects Royapettah with Dr. Radhakrishnan Salai.
In the 118.9 km signifier II task with 3 corridors—Madhavaram to SIPCOT (corridor 3), Light House to Poonamallee (corridor 4) and Madhavaram to Sholinganallur (corridor 5), each of them are planned arsenic a premix of elevated and underground networks. But corridor 3 has the maximum grade of underground network. The full magnitude of this corridor is 45.8 km and of this, 26.7 km travels underground. Corridor 3’s underground web commences astatine Madhavaram and passes done galore dense, residential, commercialized areas including Perambur, Ayanavaram, Purasawalkam, Kilpauk, Chetpet, Nungambakkam, Thousand Lights, Royapettah, Dr Radhakrishnan Salai, Greenways Road, Mandaveli, Adyar and Taramani. After Taramani, the corridor is built elevated on the IT corridor till SIPCOT.
The 2 passageway boring machines (TBM) ‘Vaigai’ and ‘Noyyal’ began boring astatine Greenways Road astir 2 years back; of that, the instrumentality ‘Vaigai’ made a breakthrough astatine Mandaveli connected Saturday (October 18, 2025).
According to officials of Chennai Metro Rail Limited (CMRL), the full magnitude of the passageway was 775 metres from Greenways Road to Mandaveli, and the machines drilled underneath 75 buildings and densely built-up areas. Be it sewer lines, h2o and energy lines, oregon the beingness of assorted utilities, it was precise challenging to physique the shaft astatine Mandaveli.
Sources said, the TBMs were waiting person to the presumption for rather immoderate clip arsenic determination were delays successful finishing the diaphragm partition of the Mandaveli station.
The machines bored done silty soil and sandy crushed conditions. As acold arsenic the instrumentality ‘Vaigai’ is concerned, the cutter head, a constituent of the TBM, was changed 13 times. In November, the adjacent machine, ‘Noyyal,’ too, volition scope Mandaveli.
