Chennai metro: Tunnelling for Chetpet-Nungambakkam stretch starts July

25 May 2023 CW Team

The TBM will be responsible for constructing one of the twin-tunnels that will pass beneath the Sterling Road junction, covering a distance of approximately 850 metres. This particular segment forms part of the 45.8-kilometer corridor-3, stretching from Madhavaram Milk Colony to Siruseri Sipcot. The completion of phase-2, encompassing a total distance of 118.1 kilometres, is expected to occur in stages between 2026 and 2028.

The construction of the shaft, where the TBM will ultimately be retrieved, will also serve as a section of the Sterling Road junction metro station. It was anticipated that this construction would begin in the current month.

The tunnels will be constructed at a depth of 22 metres in Chetpet, gradually decreasing to 15 metres as they progress towards the Sterling Road junction. The short distance between Chetpet metro station and Sterling Road junction metro station is also included in the contract awarded for the construction of tunnels spanning 12 kilometres from Kellys to Taramani, forming part of corridor-3. Officials have stated that a total of eight TBMs will be deployed to complete this segment. Earlier, tunnelling had commenced at the Greenways Road metro station site near the Adyar river, which is also part of the Kellys to Taramani stretch.

Chetpet metro station will serve as an interchange, connecting with Chetpet suburban station. Corridor-3, which traverses the eastern side of the city, links suburban areas such as Madhavaram Milk Colony and the IT corridor on Old Mahabalipuram Road (OMR) with central city areas like Chetpet, Nungambakkam, Mylapore, and Adyar.

Also read:
New railway lines to boost connectivity in Odisha
PM Modi dedicates Millions to railway projects in Odisha

The commencement of tunnelling in Madhavaram and Greenways Road has paved the way for the construction of twin-tunnels in central city locations, specifically from Chetpet to Nungambakkam, starting in July. A tunnel boring machine (TBM) has been transported to the Chetpet metro station site near Chetpet lake, and it is scheduled to be lowered into the shaft in June. The TBM will be responsible for constructing one of the twin-tunnels that will pass beneath the Sterling Road junction, covering a distance of approximately 850 metres. This particular segment forms part of the 45.8-kilometer corridor-3, stretching from Madhavaram Milk Colony to Siruseri Sipcot. The completion of phase-2, encompassing a total distance of 118.1 kilometres, is expected to occur in stages between 2026 and 2028. The construction of the shaft, where the TBM will ultimately be retrieved, will also serve as a section of the Sterling Road junction metro station. It was anticipated that this construction would begin in the current month. The tunnels will be constructed at a depth of 22 metres in Chetpet, gradually decreasing to 15 metres as they progress towards the Sterling Road junction. The short distance between Chetpet metro station and Sterling Road junction metro station is also included in the contract awarded for the construction of tunnels spanning 12 kilometres from Kellys to Taramani, forming part of corridor-3. Officials have stated that a total of eight TBMs will be deployed to complete this segment. Earlier, tunnelling had commenced at the Greenways Road metro station site near the Adyar river, which is also part of the Kellys to Taramani stretch. Chetpet metro station will serve as an interchange, connecting with Chetpet suburban station. Corridor-3, which traverses the eastern side of the city, links suburban areas such as Madhavaram Milk Colony and the IT corridor on Old Mahabalipuram Road (OMR) with central city areas like Chetpet, Nungambakkam, Mylapore, and Adyar. Also read: New railway lines to boost connectivity in Odisha PM Modi dedicates Millions to railway projects in Odisha

Infrastructure Energy

24 Sep 2025

Mahi-Banswara Nuclear Project Siting Transferred to ASHVINI

India’s nuclear regulator, the Atomic Energy Regulatory Board (AERB), has transferred the siting consent for the Mahi-Banswara Atomic Power Project from the Nuclear Power Corporation of India Limited (NPCIL) to Anushakti Vidyut Nigam (ASHVINI), a joint venture company developing the 2,800 MWe project.Prime Minister Narendra Modi is scheduled to lay the foundation stone for the Mahi-Banswara Rajasthan Atomic Power Project (MBRAPP) on 25 September. The project marks the entry of the National Thermal Power Corporation (NTPC) into India’s nuclear power sector.ASHVINI, a joint venture between N..

Infrastructure Energy

24 Sep 2025

PM Modi Launches Rs 5.1 Billion Projects in Arunachal Pradesh

Prime Minister Narendra Modi today launched infrastructure projects worth over Rs 5.1 billion in Arunachal Pradesh, underscoring the state’s growing role in energy and regional development. He virtually laid the foundation stones for two major hydropower projects in Shi Yomi district, as well as a convention centre in Tawang. Additional projects worth over Rs 1.29 billion were rolled out across road connectivity, healthcare, and fire safety sectors.Addressing a public gathering at Indira Gandhi Park in Itanagar, PM Modi described Arunachal Pradesh as both the land of the rising sun and a cra..

Infrastructure Energy

24 Sep 2025

Power Ministry Forms Committee to Standardise Smart Meter Training

The Ministry of Power is establishing a steering committee and a sub-working group of domain experts to standardise training modules and create standard operating procedures (SOPs) and guidelines for smart meter data analytics, adoption of standards-based regimes, and cybersecurity practices for distribution companies (DISCOMs).The National Data Analytics and Reporting Centre at the National Power Training Institute, Faridabad, will conduct training programmes for DISCOM officials and provide guidance on customising use case analytics. It will also offer a “Leadership and Strategic Managemen..