L&T’s Delhi Metro Silver Line TBM DZ1122 Records 1st Breakthrough

Larsen & Toubro today celebrated the first ever tunnel breakthrough for Delhi Metro’s 23.622 km Silver Line (Line-10) which will connect Aerocity – Tughalakabad via 16 stations.

Their CRCHI Earth Pressure Balance TBM DZ1122 arrived at Kishangarh Station after building a 1267 meter long tunnel from Chattarpur Station in 8 months.

This machine is one of four working on Delhi Metro Phase 4 project’s 6.51 km Package DC-09 connecting Kishangarh – Saket G Block. It was the first of 11 machines for the Silver Line’s 3 underground civil packages to be commissioned in March 2023.

Invitation for the event shared by a follower
Photo by Kaushlendra Singh

Delhi Metro Rail Corporation (DMRC) had awarded L&T with Package DC-09’s Rs. 1428 crore contract in March 2022 with a 42 month deadline.

Their 6.51 km section, with twin-tunnels in the middle of the Silver Line, will connect Kishangarh Station (chainage 5356.285) with a cut and cover ramp (chainage 11867.000) west of Saket G Block Station. It includes 4 stations at Chhattarpur (interchange with Yellow Line), Chhattarpur Mandir, IGNOU and Neb Sarai.

Alignment of Delhi Metro Silver Line’s Package DC-09 – view Phase 4 route map with all stations’ exact locations marked
Photo by Kaushlendra Singh
CRCHI’s Indian team & L&T’s engineers – Photo by Kaushlendra Singh

This is the first of what I estimate 10 breakthroughs planned on Package DC-09.

As of last Friday, L&T’s second TBM DZ1123 working on the parallel tunnel on the same stretch had completed tunneling 1067/1274m. Their 3rd TBM DZ1125 was just lowered into Chattarpur Mandir Station’s shaft on Monday.

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

– TMRG

written by

Global traveler who prefers mass rapid transit

6 Responses to "L&T’s Delhi Metro Silver Line TBM DZ1122 Records 1st Breakthrough"

  1. Tanu Oberoi says:

    Exciting progress on Delhi Metro’s Silver Line! 🚇 Kudos to Larsen & Toubro for the first tunnel breakthrough. 🎉 This achievement marks a significant milestone in improving connectivity in Delhi. 🏙️ Looking forward to more breakthroughs and the completion of this crucial project. 🙌 #DelhiMetro #SilverLine #ConnectivityImprovement 🚧👷‍♂️🏗️

    Reply
  2. Naveen Kumar says:

    Great news for Delhi. This line will solve traffic issues on one of the main South Delhi stretch. I stay in Neb Sarai and look forward for completion of this line.

    Reply
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