The project includes a 6.51-km twin-tube underground tunnel, with each tunnel accommodating 2+2 traffic lanes, 1+1 emergency lanes, and pedestrian walkways. The project entails constructing a viaduct for vehicle access at the Eastern Freeway’s Orange Gate and access roads on both sides of the corridor. The left-side tunnel will pass beneath the sea and resurface after B D Somani Chowk.

The project has been planned after considering the safety of the underground Mumbai Metro Line 3. For this, the depth of the tunnel will be about 40 metres from the ground level, ensuring it doesn't obstruct the central rail or high-rise foundations. Safety measures are paramount, given the project's proximity to heritage sites and densely populated areas in south Mumbai.

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Also read: Mumbai: ‘Eyesore’ Marine Drive set to be revamped

Commissioner speak

Dr Sanjay Mukherjee, IAS, metropolitan commissioner MMRDA, said, “In the Mumbai Metropolitan Region, the MMRDA is spearheading a range of ambitious projects aimed at enhancing the region’s transportation infrastructure and fostering overall development. These projects are meticulously planned to complement one another, effectively addressing traffic congestion and providing citizens with convenient transportation options.”

The construction of the underground tunnel is a significant step towards improving connectivity between the east and west coasts of south Mumbai. It will complement other major projects in the region, such as the Sewri-Worli elevated connector, Mumbai-Trans Harbour Link, Eastern Freeway, Mumbai Coastal Road project and Bandra-Worli Sea Link. 

6.51km
the length of the twin-tube underground tunnel