The new flyover replaces the historic Bellasis Bridge, originally built in 1893, which was dismantled in June 2024 after a structural audit deemed it unfit for use. To ensure faster and more efficient construction over active railway tracks, a cable-stayed design has been selected.

A coordinated effort between the BMC, Mumbai Metropolitan Region Development Authority (MMRDA), and the Maharashtra Rail Infrastructure Development Corporation (MRIDC) is driving the project. Western Railway is handling the work within the railway boundary, while the BMC oversees the approach road construction. The first phase has seen the successful launch of 12 girders, each measuring 36 meters.

Key structural activities are underway, including girder bracing, deck sheeting, and slab casting. These works require a total of 40 blocks involving traffic and power supply management.

Abhijeet Bangar, Additional Municipal Commissioner (Projects), confirmed the project’s momentum:

“So far, soil testing, foundation work, and pier construction have been completed, and all construction obstructions have been cleared."

He added, “Within railway limits, all 12 main girders have also been successfully launched by the contractor.” Four out of the planned 40 girders for the eastern approach road have already been installed.

The Belasis flyover is expected to significantly improve east-west connectivity in south Mumbai upon completion.