The Sion overbridge, a vital transportation link of Mumbai, will remain closed for traffic for two years during which the century-old structure would be demolished and rebuilt. The closure, effective August 1 to July 31, 2026, has forced major re-routing of traffic in the country's financial hub.
The Central Railway (CR), in collaboration with the Brihanmumbai Municipal Corporation (BMC), is undertaking the project to replace the 112-year-old bridge. A structural audit by the Indian Institute of Technology (IIT), Bombay, found the British-era structure unsafe and in the way of planned railway expansion between Chhatrapati Shivaji Maharaj Terminus (CSMT) and Kurla.
The bridge is a crucial connector between Dharavi, Bandra, Lal Bahadur Shastri (LBS) Marg, and the Eastern Express Highway (EEH).
Traffic diversions
Dr BA Road Southbound Traffic: Vehicles from Dr BA Road southbound must turn right at Sion Circle-Sion Hospital Junction, proceed via Sulochana Shetty Road-Kumbharwada Junction, and continue towards Kurla and Dharavi via KK Krishnan Menon Marg, Ashok Mill Naka, and St Rohidas Marg.
Heavy vehicles will be diverted from the Sion Hospital Junction to Sulochana Shetty Marg, St Kabir Marg, and then move towards Mahim Link Road and LBS Marg.
Western Express Highway and Bandra traffic
From the Kumbharwada Junction, traffic should proceed to St Kabir Marg, Kemkar Chauk, and Sion Mahim Link Road, eventually turning left at the T-Junction towards the Kalanagar Junction.
Eastbound vehicles from Kurla
Light motor vehicles (LMVs) should pass through LBS Road and Sant Rohidas Road, taking a right turn at Pehalwan Naresh Mane Chowk. Heavy motor vehicles (HMVs) will follow a similar route but will need to take alternate routes via Dharavi Depot Road and Sion Bandra Link Road.
Parking restrictions
Parking is prohibited on several key roads:
- Sant Kabir Marg (60 ft) Road
- Sion Mahim Link Road
- Matunga Labour Camp-TH Kataria Road
- Sulochana Shetty Road
- Bhau Daji Road
- Sant Rohidas Road
- Sion Bandra Link Road
- Dharavi Depot Road
- KK Krishnan Menon Marg (90 ft)Motorists have been advised to plan their routes accordingly and follow traffic police instructions to navigate through the diversions smoothly.
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