TBM S-1075 Makes a Breakthrough for Mumbai Metro Line-3 at Worli

Just a few moments ago, Tunnel Boring Machine S-1075 operated by the Continental Engineering Corp – ITD Cementation – Tata Projects JV made a breakthrough at Worli Station’s northern-end on Mumbai Metro’s 33.5 km Aqua Line (Line-3).

This was S-1075’s second breakthrough, 6.08 km package UGC-04’s sixth breakthough, and overall Line-3’s 26th breakthrough.

This Herrenknecht TBM, nicknamed Krishna-3, successfully passed factory acceptance testing (FAT) in October 2017, and was first commissioned on July 19, 2018 to build the 1305 m up-line tunnel of the Siddhivinayak – Worli section. After its breakthrough in March 2019, it was brought back to Siddhivinayak for its final assignment to build the 1284m down-line tunnel towards Worli Station.

Route of UGC-04 (Worli – Dharavi) – view Mumbai Metro info & map
Breakthrough!
Photo Copyright: Ramana R / MMRC
Photo Copyright: Ramana R / MMRC

Package UGC-04 now has just 2 more breakthroughs pending, both at Dadar Station. Here’s a table displaying its tunneling plan (best viewed on a desktop device) and the status of each tunnel –

TBMLineFromToDistanceStatus
1UpNayanagar
Shaft
Dadar2491mCompleted
April 1 ’19
1UpNayanagar
Shaft
Dharavi589mCompleted
Nov 21 ’19
1DownSiddhivinayakDadar1126mIn Progress
2DownNayanagar
Shaft
Dadar2472mCompleted
Mar 1 ’19
2DownNayanagar
Shaft
Dharavi589mCompleted
Oct 11 ’19
2UpSiddhivinayak Dadar1106mIn Progress
3UpSiddhivinayak Worli1305mCompleted
Mar 15 ’19
3DownSiddhivinayak Worli1284mCompleted
Today

Upcoming breakthroughs in March-April include:

• Package UGC-02: CST → Mumbai Central (up-line tunnel, 3825m)
• Package UGC-05: BKC → Dharavi (down-line tunnel, 1504 m)

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

– TMRG

written by

Global traveler who prefers mass rapid transit

5 Responses to "TBM S-1075 Makes a Breakthrough for Mumbai Metro Line-3 at Worli"

  1. Karthik says:

    The balloons look like popcorn 😀

    Reply
  2. Sandeep says:

    For the underground metro, how it is being insured that it don’t get flooded in monsoon during construction and after construction?

    Reply

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