L&T gets contract for Mumbai's longest underground tunnel project

18 Sep 2023 CW Team

This underground passage is poised to create a congestion-free pathway between Eastern Freeway's Orange Gate and Marine Drive, thereby augmenting connectivity and reducing travel durations significantly.

As per the MMRDA's official statement, the Eastern Freeway, which links Mankhurd to Chembur Junction and Orange Gate on P'Dimello Road, has substantially enhanced transportation to South Mumbai. Nevertheless, the escalating traffic congestion around Orange Gate poses challenges for both the Mumbai Port Trust and the Main Post Office square on P'Dimello Marg.

To address these pressing concerns and establish a seamless road-based transit network, the MMRDA has outlined plans to construct a 9.23 km corridor, connecting Eastern Freeway's Orange Gate to the coastal road at Marine Drive.

The extensive project entails the creation of a 6.51 km twin-tube underground tunnel, with each tunnel accommodating 2+2 traffic lanes, 1+1 emergency lanes, and pedestrian walkways. Additionally, the undertaking includes the construction of a viaduct for vehicle access at the Eastern Freeway Orange Gate, open cuts, and access roads on both sides of the corridor. The left-side tunnel will traverse beneath the seaway and remerge after B. D. SomChowk.

Crucially, the project has been meticulously planned to ensure the safety of the underground Mumbai Metro Line-3 project. To achieve this, the tunnel will be situated at a depth of approximately 40 meters from ground level, thereby avoiding any interference with central rail or high-rise building foundations. Given its proximity to heritage sites and densely populated areas in South Mumbai, utmost attention is being devoted to implementing rigorous safety measures throughout the project's execution.

Keywords –

The Mumbai Metropolitan Region Development Authority (MMRDA) has granted approval for the selection of Larsen & Toubro (L&T) as the designated contractor responsible for the construction of the city's longest underground tunnel, connecting Orange Gate and Marine Drive.This underground passage is poised to create a congestion-free pathway between Eastern Freeway's Orange Gate and Marine Drive, thereby augmenting connectivity and reducing travel durations significantly.As per the MMRDA's official statement, the Eastern Freeway, which links Mankhurd to Chembur Junction and Orange Gate on P'Dimello Road, has substantially enhanced transportation to South Mumbai. Nevertheless, the escalating traffic congestion around Orange Gate poses challenges for both the Mumbai Port Trust and the Main Post Office square on P'Dimello Marg.To address these pressing concerns and establish a seamless road-based transit network, the MMRDA has outlined plans to construct a 9.23 km corridor, connecting Eastern Freeway's Orange Gate to the coastal road at Marine Drive.The extensive project entails the creation of a 6.51 km twin-tube underground tunnel, with each tunnel accommodating 2+2 traffic lanes, 1+1 emergency lanes, and pedestrian walkways. Additionally, the undertaking includes the construction of a viaduct for vehicle access at the Eastern Freeway Orange Gate, open cuts, and access roads on both sides of the corridor. The left-side tunnel will traverse beneath the seaway and remerge after B. D. SomChowk.Crucially, the project has been meticulously planned to ensure the safety of the underground Mumbai Metro Line-3 project. To achieve this, the tunnel will be situated at a depth of approximately 40 meters from ground level, thereby avoiding any interference with central rail or high-rise building foundations. Given its proximity to heritage sites and densely populated areas in South Mumbai, utmost attention is being devoted to implementing rigorous safety measures throughout the project's execution.Keywords –

Infrastructure Transport

06 Aug 2026

Surya Roshni delivers customised lighting for NCRTC RRTS stations

Surya Roshni has supplied customised indoor lighting solutions for 18 elevated stations on the National Capital Region Transport Corporation's (NCRTC) Rapid Rail Transit System (RRTS), strengthening its presence in India's infrastructure lighting segment.The project involved the design and deployment of lighting systems for platforms, concourses, foot overbridges (FOBs) and back-of-house (BOH) areas. According to the company, the luminaires were developed specifically to meet NCRTC's design, operational and performance requirements rather than using standard products.Surya introduced two custo..

Real Estate

06 Aug 2026

Hilton debuts Tapestry Collection brand in Vietnam

Hilton has opened NHAAN Resort & Spa Hoi An, Tapestry Collection by Hilton, marking the debut of the Tapestry Collection brand in Vietnam and expanding its lifestyle hospitality portfolio in Southeast Asia.Located along the Co Co River in Cam Thanh village, the 174-key resort provides access to Hoi An Ancient Town, Cua Dai Beach and the Cam Thanh Nipa Forest. The property has been designed by Vietnamese architect Vo Trong Nghia, incorporating biophilic architecture, locally sourced materials and riverfront landscapes.The resort offers a mix of guest rooms and suites, including family-frien..

Building Material

06 Aug 2026

Electrent expands lithium energy storage system portfolio

Electrent Energy has expanded its lithium-based energy storage portfolio with the launch of the ESS 850 and ESS 1050, targeting compact and maintenance-free power backup solutions for Indian homes.The new systems integrate a Home UPS and a LiFePO4 lithium battery into a single unit, extending the company's product range following the launch of its ESS 1350 and ESS 2500 models.Designed for apartments and smaller homes, the ESS 850 provides up to 1 hour 15 minutes of backup, while the ESS 1050 offers up to 1 hour 45 minutes on a typical 400 W household load. The systems can power essential appli..