(This article is reproduced from The Metro Rail Guy.)

On this past Saturday afternoon, the THI-2 Tunnel Boring Machine deployed by the L&T-SUCG JV for package CC-27 of Delhi Metro’s Phase 3 project made a successful breakthrough at the 38.235 km Magenta Line’s RK Puram mid-shaft! This TBM was commissioned from the Vasant Vihar station in September 2015 and traveled roughly 950 meters (built 659 rings) to reach the mid-shaft which has been constructed exclusively for the line’s up-line tunnel.

The mid-shaft is located on the edge of RK Puram’s Sector-5 adjacent to the Outer Ring Road and the 1st breakthrough here took place from the opposite end (Munirka side) on December 29, 2015 by its sister machine THI-1.

With this breakthrough out of the way, now only 1 more TBM breakthrough is left on the entire line. This last one will take some time and might drag the tunneling phase up until November.

The DMRC’s MD, Mangu Singh, recently admitted to delays in both the Pink & Magenta lines’ construction which took everyone in Delhi and outside by surprise, but if you’ve been following the Delhi section of the site, then this revelation is nothing new. A new official deadline is yet to be announced by them, so stay tuned for that.

To read the original article, click here.