• Source:JND
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Chennai Metro: By July 2026, the Chennai Metro Rail's double-decker corridor will significantly improve commuting options for residents in areas like Alapakkam and Karambakkam along Arcot Road. This new stretch will serve as a vital link between two key corridors: Light House to Poonamallee and Madhavaram to Sholinganallur.

Once completed, four trains will operate simultaneously on this innovative double-decker line. The design features two levels, with Corridor 4 constructed on the lower tier and Corridor 5 above it, creating a unified network for both routes.

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Chennai Metro Phase II Project will extend 118.9 km With Three Corridors

According to The Hindu report, the expansive Rs 63,246 crore Phase II Project will extend 118.9 km and includes three corridors: Madhavaram to SIPCOT (Corridor 3), Light House to Poonamallee (Corridor 4), and Madhavaram to Sholinganallur (Corridor 5). The project will be launched in phases, with a section of Corridor 4, from Poonamallee to Porur, set to open this December. An extension of this corridor to Kodambakkam is expected to be completed by July next year, allowing commuters to transfer between Phase I and Phase II networks at Vadapalani.

Chennai Metro: Porur to Kodambakkam stretch To Feature Eight Stations

The Porur to Kodambakkam stretch will feature eight stations, including Alwarthirunagar, Valasaravakkam, Karambakkam, and Alapakkam, all part of the double-decker design. Officials from Chennai Metro Rail Limited (CMRL) stated that commuters on Corridor 5 will be able to switch to Corridor 4 at any of these stations.

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Building the double-decker structure has presented challenges due to space limitations. "We used a special-launching girder for construction, which was difficult to transport and place on the viaduct," an official explained. "Huge gantry cranes were also needed for this task, especially in narrow areas like Arcot Road. While we have completed a significant portion, we are working to expedite the remaining parts."

The next focus will be on finishing the construction of the stations and laying the tracks. Progress has been slow in areas like Vadapalani, but officials believe there is still time to meet the project deadlines.