Chennai Metro Phase II: Chetpet-Nungambakkam tunnelling starts July
RAILWAYS & METRO RAIL

Chennai Metro Phase II: Chetpet-Nungambakkam tunnelling starts July

Chennai Metro Rail (CMRL) has relocated a tunnel boring machine (TBM) to the future Chetpet metro station site in preparation for the construction of two twin tunnels in the central areas of the city.

It has been reported that tunnelling has already commenced in Madhavaram and Greenways Road, and the expansion from Chetpet to Nungambakkam, covering a distance of approximately 12 kilometres, may also commence in July.

The TBM will be responsible for constructing one of the twin tunnels at the Sterling Road junction, which spans nearly 850 metres. This section is just a portion of the corridor-3, which extends from Madhavaram Milk Colony to Siruseri Sipcot, covering a total distance of 45.8 km.

The CMRL's phase-2 expansion aims to establish a more extensive network encompassing an area of 118.1 km and 128 stations. The completion of this project is anticipated to occur in stages between 2026 and 2028. As a result of these expansions, it is expected that the ridership will gradually increase to approximately four million passengers per day by 2026.

The excavation of the shaft at the Chetpet metro site has been finalised, and a base slab has already been constructed. The mobilisation of TBM components is currently in progress, and the machine will be ready for assembly in June, followed by its descent into the shaft.

This will be completed before the end of June. By July, we may commence tunnelling. The shaft will also serve as part of the Sterling Road junction metro station.

The tunnels will be constructed at a depth of 22 metres in Chetpet, gradually reducing to 15 metres as they pass through the Sterling Road junction. The section between Chetpet metro and Sterling Road junction metro is also included in the contract for tunnel construction from Kellys to Taramani, covering a distance of 12 km along corridor-3.

A total of eight TBMs will be deployed for the construction of tunnels in this section.

Also read:
Agra Metro's TBM re-launched for Taj Mahal Station, marking a new milestone
RRTS to have multi-modal integration at 9 stations


Redefine the future of urban mobility! Join us at the Metro Rail Conference 2025 to explore groundbreaking ideas and insights. 👉 Register today!

Chennai Metro Rail (CMRL) has relocated a tunnel boring machine (TBM) to the future Chetpet metro station site in preparation for the construction of two twin tunnels in the central areas of the city. It has been reported that tunnelling has already commenced in Madhavaram and Greenways Road, and the expansion from Chetpet to Nungambakkam, covering a distance of approximately 12 kilometres, may also commence in July. The TBM will be responsible for constructing one of the twin tunnels at the Sterling Road junction, which spans nearly 850 metres. This section is just a portion of the corridor-3, which extends from Madhavaram Milk Colony to Siruseri Sipcot, covering a total distance of 45.8 km. The CMRL's phase-2 expansion aims to establish a more extensive network encompassing an area of 118.1 km and 128 stations. The completion of this project is anticipated to occur in stages between 2026 and 2028. As a result of these expansions, it is expected that the ridership will gradually increase to approximately four million passengers per day by 2026. The excavation of the shaft at the Chetpet metro site has been finalised, and a base slab has already been constructed. The mobilisation of TBM components is currently in progress, and the machine will be ready for assembly in June, followed by its descent into the shaft. This will be completed before the end of June. By July, we may commence tunnelling. The shaft will also serve as part of the Sterling Road junction metro station. The tunnels will be constructed at a depth of 22 metres in Chetpet, gradually reducing to 15 metres as they pass through the Sterling Road junction. The section between Chetpet metro and Sterling Road junction metro is also included in the contract for tunnel construction from Kellys to Taramani, covering a distance of 12 km along corridor-3. A total of eight TBMs will be deployed for the construction of tunnels in this section. Also read: Agra Metro's TBM re-launched for Taj Mahal Station, marking a new milestone RRTS to have multi-modal integration at 9 stations

Next Story
Infrastructure Urban

Osaka Expo 2025 to Feature World’s Largest Wooden Structure

Osaka Expo 2025 will showcase the world’s largest wooden structure—a spectacular canopy encircling the 155-hectare exhibition grounds. Designed by architect Sou Fujimoto, the structure combines cutting-edge technology with Japan’s thousand-year tradition of wooden construction to create a futuristic yet sustainable landmark.“This is the biggest wooden construction in the world, so we used the latest technology alongside Japan's ancient craftsmanship to achieve a futuristic design,” Mr Fujimoto said. Rigorous testing ensured the strength of the beams and joints for the immense structu..

Next Story
Infrastructure Energy

India ranks 6th globally with 127 Net-zero firms

India has secured the sixth position globally in corporate climate action, with 127 companies committing to net-zero targets under the Science- Based Targets initiative (SBTi), according to the latest report from ICRA ESG Ratings.Although India contributes approximately 7 per cent of global emissions, its corporate commitments reflect a growing awareness of climate concerns. However, high-emission sectors such as power, energy, and cement are lagging in adopting these goals.The report reveals that fewer than 10 per cent of firms in these high-emission sectors, which contribute to 55 per cent o..

Next Story
Infrastructure Energy

Power prices fall 31% amid renewable push

The average price of electricity traded on India’s power exchanges during October-November 2024 fell by 31 per cent year-on-year (YoY) to Rs.3.61 per unit in the Day-Ahead Market (DAM), down from Rs.5.23 per unit in the same period last year. Similarly, Real-Time Market (RTM) prices dropped by 29 per cent to Rs.3.59 per unit, compared to Rs.5.04 per unit a year ago, as per industry data. The price drop was driven by a surge in renewable energy generation, particularly hydro and wind power, supported by favourable monsoon conditions. Improved fuel availability and government-led ini..

Hi There!

"Now get regular updates from CW Magazine on WhatsApp!

Join the CW WhatsApp channel for the latest news, industry events, expert insights, and project updates from the construction and infrastructure industry.

Click the link below to join"

+91 81086 03000