Station finishing & signage work in progress on Mumbai Metro Line 3

Mumbai, India (Metro Rail Today): With the completion of tunneling works for Mumbai Metro's Aqua Line (Line-3) Phase 1 (BKC – Aarey) spanning 33.5 kilometers, the focus over the past three years has shifted to station civil work, system installation, and architectural finishing touches.

In this update, we will highlight the ongoing signage installation work at Marol Naka and MIDC stations. These stations are part of Package UGC-07 and are being handled by Mettle Infrastructure under a subcontract from Larsen & Toubro – Shanghai Tunnel Engineering Co (L&T – STEC JV).

Package UGC-07, with a length of 4.157 kilometers, connects CSIA Terminal 2 and Sariput Nagar Ramp via three stations at Marol Naka, MIDC, and SEEPZ. The final tunnel breakthrough for this package was achieved by TBM D213 (Wainganga-2) in December 2019.

Among the 10 stations in Phase 1 of Line 3, Marol Naka and MIDC stations are the most advanced in terms of completion. The signage contract for these stations was awarded to Mettle Infrastructure in July 2023, with an approximate value of Rs. 1.5 crore.

Signage reviews and walkthroughs were conducted in August, and installation work is currently in progress. Here are some images from both stations taken in September during the installation process.

Mettle Infrastructure has also secured signage contracts for Package UGC-01 (Cuffe Parade – CST) from L&T – STEC JV and for Package UGC-04 (Worli – Dharavi) from CEC – ITD – TPL JV.

For UGC-01, installation works are scheduled to commence at Vidhan Bhavan Station in the third week of October. In the case of UGC-04, work will commence at Siddhivinayak Station on October 5.

The Mumbai Metro Rail Corporation (MMRC) has not publicly announced a new deadline for the commissioning of Phase 1, which connects Aarey Colony to Bandra-Kurla Complex. Official train and system testing (trial runs) began in August 2022, and their completion depends on the operational control center's (OCC) construction at Aarey Depot.

As of mid-September, MMRC reported that 74.4% of the depot's work, including civil, track, and MEP system installation, had been completed (view recent images). Considering the remaining tasks, it is estimated that the line may open for commercial operations in at least six months.