HCC-URCC JV Completes Bangalore Metro Line-3 Span over Line-2
Between November 13-18, workers from HCC – URCC JV completed building a 34m span for Bangalore Metro’s new 19.143 km Yellow Line (Line-3 / Reach 5) over the existing 24.20 km Green Line (Line-2 / Reach 4A), south of the RV Road Station, under the 72 km Phase 2 project.
Per TOI –
The Yellow line is 19.8m above the road level, the Green line is 11.5m above. BMRCL officials said it is a challenging task as the launching has to be done over the existing operational Green Line at a height of 18m to 20m above the road level. “The span is 34m long and curves at a radius 127.5m. The installation of precast segments, which form a viaduct, is only from a fixed location as the space between the existing viaduct and the Phase-2 piers is not very large,” an official said.
Another challenge is the space constraint for installing precast segments because of the existing line. “The segments have to be rotated twice as they are hauled through the limited space. Special care is being taken to prevent grout and other loose material from falling on the existing line,” an official said. “We are trying to complete the work in a 99-hour period by having continuous 12-hour day and night shifts,” another official said. Work is expected to be completed before 5am on Monday, the official added.
To facilitate the launch of precast segments, BMRCL had to partially suspend services on the Green Line’s 3.9 km Reach 4A between RV Road and Yelachenahalli stations between November 14-17.
This is the first of 3 planned cross-overs in Phase 2 & 2A –
• At Jayadeva Hospital, the 21.386 km Nagawara – Gottigere Line-4 (Pink) will cross over the 19.143 km RV Road – Bommasandra Line-3 (Yellow). Demolition of the existing flyover to facilitate construction is being performed in stages, with the last phase facing delays due ongoing white-topping work by the BBMP on Hosur Road which’ll serve as an alternate route for vehicular traffic.
• At KR Puram – the 18.236 km ORR Line-5 (Blue) will cross-over the 42.17 km Line-1 (Purple). The BMRCL just re-invited bids for the ORR Line’s construction in December 2019.
For more updates, check out the Bangalore section of The Metro Rail Guy!
– TMRG
Hat-tip to Pruthvin Reddy
There is another cross over but one would be underground at MG Road.
Why did they go for X shaped cross section When they could have done a Y shaped cross section. If they opted for x shaped cross section one line going on top was not needed. Karma
I mean they should have gone for Y shaped intersection
y shape results in a lot of land take. x shape saves a lot of land, so less people affected.
Great. Wok by my company
Great job!
Think Full Span maybe better,errection need 1-2 days only.
Do you have any update on why there is no work happening on purple line[Phase2] between Byappanahalli to KR Puram Tinfactory ?
The work is restarted few months ago (you can see new pillars coming up and the drilling machine in action). The work was originally stopped due to a proposed road cum rail flyover feasibility study.
Hello, i’m doing a project on the reach-5 package-3, i tried to get the tender document containing the tender and project details but am unsuccessful and not present on BMRCL website and URC isn’t
providing the details.
If possible can anyone refer me to where i can get the tender document volume 0 and vol. 1.
thank you.
Hi, Does any have info on the flyover start and ending for the rail cum elevated road for this route ? Will the flyover cross silkboard and land near HSR layout ?
Keshav