Line 3 (Mumbai Metro)
| Line 3 | |
|---|---|
| Overview | |
| Other name(s) | Metro 3 Colaba–Bandra-SEEPZ line |
| Type | Rapid transit |
| System | Mumbai Metro |
| Status | Under construction |
| Locale | Mumbai, Maharashtra, India |
| Termini |
Cuffe Parade Aarey Depot |
| Stations | 27 |
| Daily ridership | 1.39 million (2021 estimate) |
| Website | MMRCL |
| Operation | |
| Planned opening | 2020 |
| Owner | Mumbai Metro Rail Corporation Ltd (MMRC) |
| Character | Underground and at grade |
| Depot(s) | Aarey Milk Colony |
| Technical | |
| Line length | 33.05 km (20.54 mi) |
| Number of tracks | 2 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
| Electrification | Overhead 25kV AC |
Line 3 of the Mumbai Metro, also referred to as the Colaba–Bandra-SEEPZ line, is a part of the metro system for the city of Mumbai, India of which construction has been initiated. When completed, the 33.5-km long line will be the first underground metro line in Mumbai. The metro line will connect Cuffe Parade business district in the extreme south of the city to SEEPZ in the north-central with 26 underground and one at-grade station. The track width is standard gauge. The cost of this corridor is estimated at ₹23,136 crore (US$3.6 billion). Line 3 is expected to reduce road congestion, besides reducing the load on the Western Line between Bandra and Churchgate.
The project is being implemented by the Mumbai Metro Rail Corporation Limited (MMRCL). The line starts at Cuffe Parade, will run through Nariman Point, Churchgate, CST, Girgam, Worli, Mahim, Kalina University, Dadar, Bandra, Bandra-Kurla Complex, Santacruz East and past the domestic and international terminals of Mumbai Airport, through Andheri MIDC and terminates at SEEPZ.
A 1.2 km section of the line between Bandra Kurla Complex and Dharavi stations will pass under the Mithi river. This will be the second underwater metro rail tunnel in India after the tunnel below the Hooghly river on Kolkata Metro Line 2.
A 20 km metro line from Colaba to Bandra was announced in January 2004, as part of a master plan unveiled by the Mumbai Metropolitan Region Development Authority (MMRDA). The plan encompassed a total of 146 kilometres (91 mi) of track, of which 32 kilometres (20 mi) was proposed to be underground. The MMRDA unveiled plans for an extended Colaba-Bandra-SEEPZ metro line in 2011. According to its earlier plans, a 20-km metro line from Colaba to Bandra was to be constructed, running underground for 10 kilometres (6.2 mi) from Colaba to Mahalaxmi, and then on an elevated track from Mahalaxmi to Bandra. The MMRDA decided to extend the line to the Chatrapati Shivaji International Airport to increase ridership. The 33.5-kilometre (20.8 mi) Colaba-Bandra-SEEPZ line was estimated to cost ₹21,000 crore (US$3.3 billion), have 27 stations, and would be the city's first fully underground metro line. at Nariman Point, BKC, MIDC, SEEPZ, and elsewhere. According to the MMRDA, an underground metro will minimise land acquisition and disturbance to traffic during construction compared to an elevated metro.
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