Trial Assembly for Bangalore Metro ORR Line’s Steel Girder Completed

Steel Infra Solution in Bhilai, Chhattisgarh on Monday completed trial assembly on a 35.5 meter long steel composite girder fabricated for 56 km Bangalore Metro Blue Line‘s viaduct on the Outer Ring Road (ORR).

Weighing approximately 2000 MT, this steel composite girder will be launched by Afcons Infrastructure between piers ORP-60 and ORP-61 alongside HSR Flyover for 18.2 km Bangalore Metro Phase 2A project’s 9.859 km Package 1 connecting Central Silkboard – Kodibeesanahalli.

Photo by Sourav Mukherjee

The city’s new Blue Line by BMRCL is being developed in Phase 2A (ORR Line) and Phase 2B (Airport Line) to connect Silkboard – KR Puram – Bengaluru International Airport through 30 stations.

Afcons Infrastructure was awarded ORR Line Package 1’s Rs. 785.23 crore contract in May 2021 after emerging as its lowest bidder in October 2020.

Their scope includes constructing the 9.859 km Central Silkboard – Kodibeesanahalli section’s viaduct, 6 elevated stations at Central Silk Board, HSR layout, Agara, Ibbalur, Bellandur, Kadubeesanahalli, and a roughly 2.84 km long flyover with loops at Central Silkboard.

Route Map of Phase 2A’s ORR Line-5 (Blue Line) – view Bangalore Metro Phase 2A info & map
Photo by Sourav Mukherjee

Package 1’s viaduct includes 22 composite spans, while 8.377 km Package 2’s viaduct, under construction by Shankaranarayana Constructions (SNC), includes 25 between Kodibeesanahalli and KR Puram

Photo by Sourav Mukherjee

The composite girder will now be dismantled, transported roughly 1350 km south to the site and reassembled for launch.

While we’re on the topic of Package 1’s viaduct, Afcons Infrastructure just posted this cool graphic on LinkedIn with some fun facts. They’ve so far launched around 60 U-girders out of 650.

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Global traveler who prefers mass rapid transit

8 Responses to "Trial Assembly for Bangalore Metro ORR Line’s Steel Girder Completed"

  1. Ajay says:

    This has run into an issue,now with the suburban railway approved railways now want the OWG to be 68 meters

    Another delay can happen now

    • Madhusudan H J says:

      That’s for SNC package over railway line. Not for AFCONS package. AFCONS package doesn’t have any railway related OWG

  2. Anil Kumar says:

    Given the fact that the issue of the Girder over the Marathahalli Railway bridge is now known. The solution can be worked out and planned in parallel not waiting till the end. Since it is early days the overall project delay can be avoided. Because if phase 2A is completed atleast the loop connection with KR Puram and Silk board will benefit lakhs of IT professionals on this section

  3. Mohan V says:

    How this girder moved to Bangalore.. article says trial assembly, does this mean assembly will separated into parts and moved?

    • Kartik says:

      The composite girder will now be dismantled, transported roughly 1350 km south to the site and reassembled for launch.

      Atleast read the full article

    • Santosh says:

      Yes, After dismantled and after paint inspection
      We have dispatched by trailer


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