Location: Mumbai Metropolitan Region, India
Project Period: 2019–2022
Owner: Mumbai Metropolitan Region Development Authority (MMRDA)
Contractors: Larsen & Toubro (L&T) and IHI Infrastructure Systems Co., Ltd.
Steel Tonnage: Approx. 19,200 tonnes
Standards: Fabricated in China in accordance with Japanese JIS material standards and JRA bridge standards.

The Mumbai Trans Harbour Link is a major 22 km sea-crossing bridge project. Shanghai Matsuo supplied approximately 19,200 tonnes of structural steel, representing more than 40% of the bridge’s total steel structure volume, with a contract value exceeding USD 40 million.

The project marked Shanghai Matsuo’s first major bridge project in cooperation with IHI and an important breakthrough into large-scale bridge fabrication. A key technical challenge involved welding 6 mm ultra-thin U-ribs to the bridge deck, requiring weld penetration of at least 75% of the plate thickness without burn-through.

To meet these requirements, Shanghai Matsuo independently developed two sets of dedicated automatic welding equipment and successfully completed fabrication, precision processing and full pre-assembly under the leadership of its China-based team.

The successful delivery of the project strengthened Shanghai Matsuo’s bridge fabrication capabilities and laid a solid foundation for continued cooperation with IHI on large-scale international bridge projects.