The Mumbai Metro is a Metro system serving the Maharashtra capital city of Mumbai. The system is designed to reduce traffic congestion in the city, and supplement the existing, but severely overcrowded Mumbai Suburban Railway network. It will be built in three phases over a 15-year period, with overall completion expected in 2021. When complete, the core system will comprise three high-capacity metro railway lines, spanning a total of 63 kilometres (39 mi). Line 1 of the Mumbai Metro is operated by Mumbai Metro One Pvt Ltd (MMOPL), a joint venture company formed by Reliance Infrastructure,Veolia Transport and the Mumbai Metropolitan Region Development Authority (MMRDA).
In June 2006, the then Prime Minister of India, Manmohan Singh inaugurated the first phase of the Mumbai Metro project. Construction work began in February 2008. A successful trial run was conducted in May 2013, and the system's first line entered operation on 8 June 2014, as some aspects of the project were afflicted by delays and cost issues.
The Mumbai Metro is India's first public private partnership metro project in which all the three phases (construction, operation and maintenance) were given to a private player.
Metro Rail Bridge over Western Railway Tracks (Mumbai)
Date of starting: 2010, Open to traffic: 2013, Total value: Rs. 21.16 cr. (appx)
Type: Double Track Rail Bridge, Supply Fabrication & Erection
Span: 3x61m
Steel Work: 1300 mt. (appx)
Challenges during construction: Erection was done at one of the busiest station of Mumbai (Andheri) over the running railway tracks with keeping undisturbed movement of trains.