Larsen & Toubro and J Kumar Infraprojects – NCC JV are the only 2 bidders for the 4.46 km Orange Gate – Marine Drive tunnel project’s construction in Mumbai.

Alignment of Marine Drive – Orange Gate tunnel in yellow – via MMRDA’s tender document 

The Orange Gate – Marine Drive tunnel is a proposed road tunnel in Mumbai, India. The tunnel will connect the Eastern Freeway and Marine Drive, and is expected to reduce travel time between the two points by 10 minutes. The tunnel will be 3.8 kilometers long and will have two lanes in each direction. It will be built under 30 meters below the Grant Road and Girgaum stations of Metro 3.

The tunnel is being developed by the Mumbai Metropolitan Region Development Authority (MMRDA) and is expected to cost ₹6,500 crores (US$850 million). Construction is expected to begin in 2023 and be completed in 2027.

Project profile south-west of Eastern Freeway – via MMRDA’s tender docs

The tunnel is one of several projects that are being undertaken by the MMRDA to improve traffic congestion in Mumbai. Other projects include the Mumbai Coastal Road, the Santa Cruz – Chembur Link Road, and the Bandra – Worli Sea Link.

The Orange Gate – Marine Drive tunnel is expected to be a major relief for motorists in Mumbai. It will provide a direct link between two important traffic arteries, and will help to reduce congestion on the roads that currently connect the two points. The tunnel is also expected to boost economic activity in the city, as it will make it easier for people to travel between the two areas.