TBM Kaveri completes 60 m of tunneling for Phase II of Chennai Metro

15 May 2023 CW Team

This corridor runs beneath the Adyar River, and Kaveri will build a 400-meter-long tunnel around 20 meters below the river's surface. The tunnel boring machine began excavating in February and is now approximately 300 meters from the river. This will be Chennai's first metro tunnel built beneath the Adyar River. The tunnel and its approach are 1.2 kilometers long, linking Greenways Road Underground Station with Adyar Junction Underground Station.

"From Greenways Road, the TBM will tunnel through Durgabai Deshmukh Road, crossing the Adyar near Thiru Vi Ka Bridge before reaching Adyar junction where a station will be built," the officials said.

According to Chennai Metro officials, the TBM is projected to conclude river ben tunneling by July and reach Adyar junction by November. The tunnel wall will be 35cm thick, according to officials. Depending on the pressure under the river, the thickness can be increased to 40cm or 45cm. The Chennai Metro Phase II project has three new corridors totaling 118.9 kilometers. The total cost of the project is anticipated to be Rs. 69,180 crores.

According to the present alignment, the Purple Line corridor 3 will feature 44 stations. Around 19 km will be elevated, while the remaining 26.72 km will be buried.

The proposed stations are: Madhavaram Milk Colony, Thapalpetti, Murari Hospital, Moolakadai, Sembiyam, Permabur Market, Perambur Metro, Ayanavaram, Otteri, Pattalam, Perambur Barracks Road, Doveton Junction, Purasawalkam High Road, Kellys, KMC, Chetpet Metro, Sterling Road Jn, Nungambakkam, Gemini, Thousand Lights, Royapettah Govt Hospital, Radhakrishnan salai Jn, Thirumayilai Metro, Mandaiveli, Greenways Road Metro, Adyar Jn, Adayar Depot, Indira Nagar, Thiruvanmiyur Metro, Nehru Nagar, Kandanchavadi, Perungudi, Thoraipakkam, Mettukuppam, PTC Colony, Okkiyampet, Karapakkam, Okkiyam Thoraipakkam, Shozhinganallur, Sathyabama and St Joseph College.

"Join industry leaders at RAHSTA Expo, India's premier platform for roads, highways and traffic infrastructure. Register now to explore innovations, network with experts and shape the future of mobility."

The third corridor of the Chennai Metro Phase II project is rapidly being built. Madhavaram Milk Colony and Siruseri Sipcot are linked by this 45.8-kilometer road. The tunnel boring machine (TBM) Kaveri has completed approximately 60 meters of tunneling on this section. This corridor runs beneath the Adyar River, and Kaveri will build a 400-meter-long tunnel around 20 meters below the river's surface. The tunnel boring machine began excavating in February and is now approximately 300 meters from the river. This will be Chennai's first metro tunnel built beneath the Adyar River. The tunnel and its approach are 1.2 kilometers long, linking Greenways Road Underground Station with Adyar Junction Underground Station. From Greenways Road, the TBM will tunnel through Durgabai Deshmukh Road, crossing the Adyar near Thiru Vi Ka Bridge before reaching Adyar junction where a station will be built, the officials said. According to Chennai Metro officials, the TBM is projected to conclude river ben tunneling by July and reach Adyar junction by November. The tunnel wall will be 35cm thick, according to officials. Depending on the pressure under the river, the thickness can be increased to 40cm or 45cm. The Chennai Metro Phase II project has three new corridors totaling 118.9 kilometers. The total cost of the project is anticipated to be Rs. 69,180 crores. According to the present alignment, the Purple Line corridor 3 will feature 44 stations. Around 19 km will be elevated, while the remaining 26.72 km will be buried. The proposed stations are: Madhavaram Milk Colony, Thapalpetti, Murari Hospital, Moolakadai, Sembiyam, Permabur Market, Perambur Metro, Ayanavaram, Otteri, Pattalam, Perambur Barracks Road, Doveton Junction, Purasawalkam High Road, Kellys, KMC, Chetpet Metro, Sterling Road Jn, Nungambakkam, Gemini, Thousand Lights, Royapettah Govt Hospital, Radhakrishnan salai Jn, Thirumayilai Metro, Mandaiveli, Greenways Road Metro, Adyar Jn, Adayar Depot, Indira Nagar, Thiruvanmiyur Metro, Nehru Nagar, Kandanchavadi, Perungudi, Thoraipakkam, Mettukuppam, PTC Colony, Okkiyampet, Karapakkam, Okkiyam Thoraipakkam, Shozhinganallur, Sathyabama and St Joseph College. See also: CMDA authority approves new railway station in KilambakkamThree high-demand metro corridors listed in Trichy Corp's mobility plan

Infrastructure Urban

07 Jul 2026

IHC and Adani to Invest US$11.5 bn in Odisha Aluminium Project

Abu Dhabi's International Holding Company (IHC) will invest US$11.5 bn in an integrated aluminium project in the eastern Indian state of Odisha in a joint venture with the Adani Group, a state official said. The official said the announcement represented the country's largest foreign investment in mining and metallurgy. Officials said the venture would span both mining and metallurgical activities across several facilities in the state. The project has been described as integrated, encompassing upstream bauxite extraction and downstream smelting and metallurgy, and is intended to develop a com..

Infrastructure Transport

07 Jul 2026

Air India and SIAEC to Explore MRO Joint Venture in India

Air India and SIA Engineering Company (SIAEC) have signed a memorandum of understanding (MoU) to explore the formation of a maintenance, repair and overhaul joint venture in India. The MoU, signed on Friday, will examine collaboration to develop India as a global aviation MRO hub and to serve growing needs across the Indian and regional markets. SIA Engineering Company, part of the Singapore Airlines Group which holds a 25.1 per cent stake in Air India, will bring technical expertise alongside Air India's established airline operations network. The partnership builds on existing cooperation be..

Infrastructure Transport

07 Jul 2026

Assam and Centre Review Aviation Projects Push Silchar Airport Approval

Assam and the Centre on Thursday, July two reviewed a series of aviation infrastructure projects aimed at strengthening air connectivity across the state, with the proposed greenfield airport at Silchar emerging as a key priority. The review formed part of broader efforts to position Assam as a major aviation and logistics hub for the north east. Officials outlined timelines and preparatory work that they said would guide the next stages of project approvals. The Chief Minister met the Union Civil Aviation Minister at Rajiv Gandhi Bhavan in New Delhi and described the meeting as very productiv..