India News

Mumbai Trans Harbour Link: India's longest sea bridge

The Mumbai Trans Harbour Link is an under-construction 6-lane access-controlled expressway grade road bridge, which will connect Mumbai with Navi Mumbai–Raigad.

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The Mumbai Trans Harbour Link is the longest sea bridge in India, spanning 21.8km, of which 16.5km crosses the Thane Creek. 

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Speed Limit

The MMRDA has set a speed limit of 100 km/h on the highway, thus commuters will be able to travel the 21.8 km distance rather swiftly.

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Orthotropic Steel Decks (OSDs)

India's inaugural use of seven OSDs in bridge construction is a fabricated deck, comprising a structural steel deck plate, that enhances load-carrying capacities.

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Estimated Cost

The project is estimated to cost a total of Rs 17,843 crore (US$2.2 billion) & is developed by  Mumbai Metropolitan Region Development Authority (MMRDA).

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PPP to EPC Model

In August 2013, the MMRDA decided to proceed with the project on an engineering, procurement, and construction (EPC) framework rather than using the PPP approach.

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Construction of the bridge required the use of 165,000 tonnes of reinforcement steel, 96,250 tonnes of structural steel, and 830,000 cubic metres of concrete.

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MTHL will be inaugurated on January 12, 2024. The bridge will connect Mumbai and Navi Mumbai in just 20 minutes.

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