Mumbai Metro’s NATM Stabling Lines at Cuffe Parade Near Completion

Workers from Larsen & Toubro – Shanghai Tunnel Engineering Co. (L&T – STEC JV) are rushing to complete a pair of stabling lines at Cuffe Parade on Mumbai Metro’s 33.5 km Line-3 (Aqua Line) which’ll connect Cuffe Parade – Bandra Kurla Complex – Aarey Colony.

These roughly 190 meter stabling lines start at the extreme southern-end of the 405 meter long Cuffe Parade Station box and were built using the New Austrian Tunneling Method (NATM).

They will be used to stable a few Alstom train-sets overnight for the morning’s first services. A scissors cross-over will come up just north of the tunnels’ entrance to allow trains to switch tracks (or turn back) between the up-line and down-line during regular train operations.

These tunnels are part of the 4.25 km Package UGC-01 which was awarded to L&T-STEC in July 2016. The scope of that package includes building the line’s tunnels with 4 stations at Cuffe Parade, Vidhan Bhavan, Churchgate and Hutatma Chowk. L&T – STEC is being assisted by a Detailed Design Consultant (DDC) team from Systra MVA Consulting India.

Package UGC-01: Cuffe Parade – CST – view Mumbai Metro Aqua Line info & route map
Simple tender drawing of the line at Cuffe Parade – Copyright: MMRCL

With excavation works long completed, workers have now moved onto waterproofing and secondary concrete-lining the tunnel. Within the up-line tunnel, about 60 meters is now complete.

Here’s a snap I shared on Twitter when one of the tunnels was being waterproofed in March using a synthetic membrane of plasticized PVC:

Here are some recent snaps of the up-line tunnel:

Rebar reinforcement being bound – Photo Copyright: Muhammad Shariq
Closer look – Photo Copyright: Muhammad Shariq
Gantry with overt shutter/formwork to pour concrete – Photo Copyright: Muhammad Shariq
Completed section – Photo Copyright: Ambika Mishra

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


written by

Global traveler who prefers mass rapid transit

3 Responses to "Mumbai Metro’s NATM Stabling Lines at Cuffe Parade Near Completion"

  1. Clevin Gomes says:

    Very happy about the fast progress, just the government make a decision on the Aarey Depot ASAP. If this not happen, then it will never inaugurate.

  2. Rupraj Sengupta says:

    Best news during the pandemic,the depot work a quick decision is necessary not playing to the gallery.


Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *