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


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

Canal Water Boost for Mudki

In a significant push for public health and urban development, MLA Rajneesh Dahiya has announced a Rs.280 million canal water supply project for Mudki town in the Ferozepur Rural constituency. The initiative aims to provide clean drinking water to every household within Mudki’s municipal limits. Speaking about the development, Dahiya said the project falls under the Centre’s AMRUT (Atal Mission for Rejuvenation and Urban Transformation) scheme and is being carried out with the support of Punjab Chief Minister Bhagwant Singh Mann and Local Government Minister Dr. Inderbir Nijjar. “This ..

Next Story
Infrastructure Transport

6 Tunnel Boring Machines Idle in Chennai

Six tunnel boring machines (TBMs) deployed by the Chennai Metro Rail Limited (CMRL) are currently lying idle beneath city roads, stuck in limbo due to delayed construction of underground stations at Moolakadai, Perambur, and Mandaveli. The TBMs, launched as part of Corridor 3 of the Phase II Metro project from Madhavaram to SIPCOT, have reached their designated stations but are unable to proceed as the station boxes are incomplete. Without a completed diaphragm wall or station box, the machines cannot break through or be dismantled for reuse. According to CMRL officials, the root of the dela..

Next Story
Infrastructure Transport

Mumbai Metro 3 Nears Launch

The Mumbai Metro Rail Corporation shared a sneak peek of the newly completed Acharya Atre Chowk station on Metro Line 3 (Aqua Line) this Sunday, drawing both praise and impatience from the public. Located on the 9.77 km stretch between Bandra Kurla Complex (BKC) and Worli, the underground station is part of a long-anticipated corridor that promises to ease traffic and boost east-west connectivity. The social media update, posted by the handle @MumbaiMetro3, featured images of the station’s sleek new interiors. But the post quickly sparked a flurry of comments, with several users demanding c..

Advertisement

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Talk to us?