2nd Launching Gantry Commissioned for B’lore’s R4B at Yelachenahalli

Workers from NCC this weekend commissioned their 2nd launching gantry at Yelachenahalli to launch precast segments for building the Bangalore Metro Green Line’s 6.29 km southern extension to Anjanapura Township.

This development comes just 2 months after they commissioned their first launching gantry south of the Krishna Leela Park Station’s site after winning the contract to build package Reach 4B of the Bangalore Metro’s 72 km Phase 2 project between Yelachenahalli and Anjanapura Township in January 2016. As per a Twitter follower, as of February 14, the 1st LG crane has completed building (launching & post-tensioning segments) for 8 spans.

The Reach 4B section includes 5 new stations at Anjanapura Cross Road, Krishna Leela Park, Vajrahalli, Thalgattapura & Anjanapura Township on Kanakapura Road, and is expected to become operational in late 2019. Here’s a map displaying the direction of both launching gantry cranes in orange:

Map of Yelachenahalli – Anjanapura Township extension – view Bangalore Metro’s Phase 2 map & info

Tweet from January:


Existing viaduct & new segment being launched

Launching gantry crane

Photo Copyright: BMRCL

Each segment weighs 40 tons and usually 10 segments are required to build one span between two adjacent piers. For this section, NCC will launch 2018 segments which they’re currently casting at their yard in the nearby Thataguni Village. As per BMRCL’s Feb 2017 newsletter, 345 of them had been cast by the end of January 2017.

Here’s my go-to video to demonstrate how the Launching Gantry works its magic with precast segments to build modern segmental viaducts and bridges:

For more updates, check out the Bangalore section of The Metro Rail Guy!


written by

Global traveler who prefers mass rapid transit

39 Responses to "2nd Launching Gantry Commissioned for B’lore’s R4B at Yelachenahalli"

  1. Ronith says:

    TMRG, what happened to the integrating and extending the existing rolling stock to 6 coaches? Thank you.

    • TMRG says:

      Unsurprisingly BEML was the only bidder, and as per one source was awarded the contract last week. I’m waiting for confirmation from other sources & final value details before writing about it. If true, then expect the first 6-coach train to roll out by 2018-end.

  2. Saurabh says:

    Which company built the old viaduct which is seen in first picture?

  3. Bharath says:

    There is a news in today’s news paper that pahse-1 majestic to sampige road trail runs are starting from 25th Feb 2017. Any news from your side on the same?

    • TMRG says:

      Hi, I provided an assessment of the underground section in the Feb update. In any case, this is going to be a media event targeted to show they’re on track for an April opening (no pun intended, ha) which is far from happening. The signalling system is nowhere close to being installed and tracks for the northbound line are still being laid.

  4. Sunil says:

    Hi TMRG,
    Can you throw some light on how segments get interlinked with one another?

  5. S Manikantan says:

    Asking the same Qn. again – Will this line be extended up to Art of Living Ashrama? What are the possibilities and when likely?

    • TMRG says:

      1) In Phase 2? No. In Phase 3? I haven’t seen any reports indicating any plans to do so.
      2) Good possibility of it being extended in the future as that’s the only place where the Green Line can be routed to. It could be included in Phase 4 plans? Maybe Phase 5 plans? We’ll have to wait and watch.

      • Sumit says:

        Phase 4/5. Is that really going to happen!!! Even phase 3 seems like would conclude nothing before 2050. Phase 5 by 2100 may be 😛

        • TMRG says:

          New lines and extensions of existing lines will be constructed as long as there’s a demand to connect existing/uncharted neighborhoods or in order to decongest existing lines.

          Timing wise, a 2100 opening for Phase 5 is not too far fetched!

  6. Karthik says:

    Hello TMRG. The road expansion is happening after the nice road junction on kanakapura main road. Is this expansion in the plan to extend the metro till art of living? Plz comment.

    • TMRG says:

      The Green Line in Phase 2 is supposed to end before (north) of the NICE road. The road widening activity you saw must be related to something else.

    • MVM says:

      The road widening is part if NHAI plan to make NH-209 a 4 lane road from Bangalore city till TN border. To start with Bangalore – Kanakapura stretch would be made 4 lane afaik.

  7. Parthasarathy S says:

    Good News. Despite the fact that the there’s no news regarding the underground line of Phase-II, other sections seem to be making progress (tenders wise etc). Even if all the other parts get finished as per schedule (with just 1-2 revisions), then I would expect it to have huge +ve impact on Bangalore traffic.

  8. Nags says:

    Hi TMRG,

    Recently there was article in news paper saying Phase 2 extension (Knakapura Rd & Mysore ) will be completed by 2018 end, two year ahead of schedule. Is this true.

    I see most of pillers are ready from Nayandahalli to RR arch

    • TMRG says:

      BMRCL is just being BMRCL. With the quantum of civil work involved (and all that follows), 2018-end is just not possible. Pillars are easy to setup and come up fairly quickly everywhere, but the stations take a relatively longer time to be constructed and you’ll notice that as construction progresses.

  9. Tanmay says:

    Pls. give some update about magenta line trials , is trial going on between vasant vihar to munirka ?
    When can we expect whole line trial and commissioning?
    Reply surely on dis.

    • TMRG says:

      Hi, IGI – Kalkaji Mandir trial runs are yet to start. They might announce trial runs in Q2 (April – June) and run a train through one of the tunnels for the media, but I expect proper testing through both tunnels to start only in Q3 (July-Sept).

      Pratibha-FEMC, the contractor for the Kalkaji – Hauz Khas section, has deserted most of the station sites due to cash flow issues and the DMRC is currently trying to re-tender the balance work at these stations. Due to this blip, there’s going to be a further delay and although DMRC’s website says they’ll be ready to open in September, I expect them to open only by Dec-end or in Q1 2018. Let’s see.

      • Tanmay says:

        Thanks for info .

        But DMRC has taken standard upto lowest level under supervision of Mr. Mangu Singh.
        Every stretch is late ,even upto 1.5 years in 3rd phase without any solid reason except trilok puri on pink line.
        Moreover Snags are occurring repeatedly now a days.
        This way public & commuters are losing faith in DMRC now a days.

  10. Siddhant Kumar says:

    Is trilokpuri issue resolved. Dmrc will demolish old houses and new houses for block15 residents. Last year you mentioned in your post that dmrc takes over land earmarked for trilokpuri’s residents. Is the work going on.

  11. MVM says:

    On a side note: i see bmrc has christened a station as krishna leela park. but is there any progress at all in the construction of the much hyped krishna leela park itself by isckon ? I dont see any news on that. As per original estimates it was supposed to be inaugurated this year. Any news ?

    • KRISHNAN says:

      Thanks Sumit

      @TMRG – Is it really true . Except Hindu , I dont see this news in twitter or any other news papers.I would have gone to Magestic to see this. Waiting for very long time to see this day

  12. KRISHNAN says:

    Green line remainder set for trial run soon
    Bengaluru, Feb 27, 2017


  13. Vishal says:

    I believe Mumbai metro uses much longer pre-cast segments (ref Line-1) hence there may not be this kind of launching . Going by your updates the pics from J Kumar casting yard shows similar length longer pre-cast segments.

    • TMRG says:

      Yea, Mumbai’s lines are being built using U-girders. Here the BMRCL has got its contractors to use box segments.

  14. Kumar says:

    HI TMRG,

    what is the status of Gottigere to Nagasandra Metro, by when it will be started, our bureaucrats have told it will be completed by 2020. it is not even started will they finish by 2020??

    • TMRG says:

      Construction start depends on when the BMRCL invites bids from civil construction companies. If they were to invite bids on March 1, then construction work is expected to begin only between early-mid 2018 with TBMs starting mining/tunneling works by the end of the 2018.

  15. KRISHNAN says:

    Sampige Road-Yelachenahalli Metro trial run delayed by a week
    Bengaluru, Feb 28, 2017,


  16. Sumanth says:

    I dont see the majestic to yelchenahalli line opening by end of Apr 2017. No news…
    In last April CM said Nov 16
    Then moved to April 17
    When KJG rettook the ministership he said Mar 17….
    Looking at the progress qe have to wait for another 3-4 months

  17. KRISHNAN says:

    At Rs 247 crore, contract for Namma Metro purple line extension finalised

    Read more at:

  18. ranganath says:

    What is the namma metro stats bangalore international airport. When Work will be start. what is timeline ?


Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply to KRISHNAN Cancel reply