Larsen & Toubro in the past fortnight has recorded two significant milestones for constructing Chennai Metro Line-3’s first 10 km elevated section between Nehru Nagar – Sholinganallur.
This leg the 118.9 km Chennai Metro Phase 2 project (Package CP08 EV-01) consists of 9 elevated stations at the southern-end of 45.8 km Line-3 which will connect Madhavaram – SIPCOT 2 through 49 stations.
The milestones include casting the first set of 27.90m long U-Girders for the line’s superstructure and casting the 1st pile cap at Sri Sowdeswari Nagar on Old Mahabalipuram Road (OMR) for the line’s substructure.
L&T was awarded Package CP08 EV-01’s Rs. 963 crore construction contract by Chennai Metro Rail Ltd (CMRL) in June 2022 with a 36 month deadline.
Their scope includes constructing a 10 km viaduct starting from a ramp south of Taramani Link Road Station with 9 stations at Nehru Nagar, Kandanchavadi Perungudi, Thoraipakkam, Mettukuppam, PTC Colony, Okkiyampet, Karapakkam, Okkiyam Thoraipakkam and Shalinganagallur
L&T’s casting yard currently consists of a 146m long casting bay from where 5 U-girders weighing 165 tons each can be cast simultaneously. Work is underway to add another U-girder casting bay next to it.
The start of commercial operations on this elevated section depends on the completion of 21 km twin tunnels (by Tata Projects and L&T) and track-work between Madhavaram – Nehru Nagar at the minimum, so I see this section opening no sooner than 2027 at this time. An elevated stabling yard will be built at SIPCOT, similar to the one in Wimco Nagar, but I don’t see that being able to sustain commercial operations.
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