J Kumar Lowers Surat Metro UG-2’s 1st Tunnel Boring Machine S28B

J Kumar Infraprojects this week started lowering parts of tunnel boring machine S28B – the 1st of 2 TBMs – at Surat Railwat Station for Surat Metro Phase 1’s 3.56 km underground Package UG-2 / CS-3 (Surat Railway Station – Chowk Bazar Ramp).

This Ø 6.61m diameter refurbished Terratec earth pressure balance machine along with TBM S25B had previously seen action at Delhi Metro’s Phase 3 Pink Line’s Package CC-24 (Lajpat Nagar – Hazrat Nizamuddin)

Following a final double breakthrough, they were then brought to Surat’s Palanpur for refurbishment in April 2021 and passed factory acceptance tests (FAT) in July 2022.

In Surat, J Kumar will deploy both machines for constructing 4 tunnels on the 21.61 km Line-1’s 7.02 km underground section connecting Chowk Bazar and Kapodra Ramp.

Photo by Sandeep Pande

Gujarat Metro Rail Corporation (GMRC) had awarded J Kumar Infraprojects with Package CS3’s Rs. 941.80 crore contract in December 2020.

Their scope includes constructing Line-1’s underground section from chainage 7160.6m to chainage 10720m with 3 stations at Chowk Bazar, Maskati Hospital and Surat Railway Station.

Route of Surat Metro’s underground section from Chowk Bazar – Surat Railway Station – Kapodra with the indicative location of stations en route – view Surat Metro Phase 1 info & route map
Photo by Sandeep Pande
Photo by Sandeep Pande

After starting out from Surat Railway Station, both machines will be retrieved from Chowk Bazar.

An official commissioning date has not yet been set, but I expect temporary temporary ring building work within the shaft to start in the 2nd half of April with tunnel excavation (mining) works in May.

For more updates, check out the Surat section or my Home Page! Sign up for free instant email notifications on new posts over here. Like this post? Get early-access to updates and support the site over here.


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Global traveler who prefers mass rapid transit

5 Responses to "J Kumar Lowers Surat Metro UG-2’s 1st Tunnel Boring Machine S28B"

  1. Kartik says:

    What happened to rolling stock contract where titagarh was the only bidder?

    • TMRG says:

      I’m not sure. If they had awarded Titagarh, then it would have been announced on the stock exchange by now.

  2. Chittaranjan jena says:

    Iam painter

  3. Harvesp Variava says:

    Please check your source I think this images are not of chowk bazar station. Yesterday only I checked by passing near the construction site of chowk bazar station, there were no TBMs parts. So please check the source.


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