Mumbai Decongestion Plan: New Byculla-Mazgaon Bridges Detailed
3 min readMumbaiApr 17, 2026 03:21 PM IST
The Brihanmumbai Municipal Corporation (BMC)’s high-scale decongestion plan for South Mumbai will involve the construction of two new bridges that will link Byculla and Mazgaon, the two most congested pockets in Mumbai.
The project
Byculla and Mazgaon have recorded heavy traffic congestion during peak hours. Therefore, to ensure seamless movement of vehicles, the authorities are constructing a 916-metre-long cable-stayed bridge at Byculla, which will be further linked with Mazgaon by another 892 metres flyover.
Specifics of the project
The authorities have proposed a 916-metre new cable-stayed bridge to replace the 103-year-old Y bridge in Byculla after a recent audit deemed it unfit for vehicular movement. Since there is no elevated connectivity between Byculla and Mazgaon, motorists have to pass through Richardson and Crudas junction and Sabboo Siddik junction, which stay heavily congested during peak hours. Therefore, another flyover will extend from the JJ flyover and will link the upcoming new Y bridge in Byculla, providing a continuous arterial high-speed corridor.
Specifics of the new bridge
The cable-stayed flyover will comprise six vehicular lanes and will be 916 metres long. The new bridge will be wider and ready to meet the city’s future vehicular density. The bridge will have a selfie point and will have an aesthetic design and illumination system that will reflect the city’s identity. Meanwhile, the second flyover will be 848 metres long and will comprise four vehicular lanes, which will be a high-speed corridor.
Slash in travel time
Once the entire corridor becomes operational, the distance between CSMT (Fort) and Byculla will come down to less than 10 minutes, which, at present, takes 30-45 minutes depending on traffic.
Project timeline
According to officials, the new cable-stayed Y bridge is 78 per cent ready and will be opened by November 2026, while the work orders for the second flyover have been issued and construction has begun, with the deadline being set for early 2028.
Cost of the project
The total cost of the project has been pegged at Rs 1,841 crore. While the newly-built cable-stayed bridge at Byculla is being constructed for Rs 280 crore, the second flyover has a cost estimate of Rs 1,561 crore. Authorities said that the cable-stayed flyover will pass over railway tracks and will have a suspended design, because of which its cost is lower.
Administration speaks
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“The idea is to provide a seamless connectivity network in South Mumbai through these two bridges. Going forward, this lane serves as a continuous high-speed north-south stretch within the city. This is a future-ready project, and the decision to link these two bridges has been taken so that traffic congestion in the island city comes down drastically in the future,” Abhijit Bangar, Additional Municipal Commissioner (Projects), told The Indian Express.
