Major Progress in Mumbai-Ahmedabad Bullet Train Project

The Mumbai-Ahmedabad bullet train project in Maharashtra is progressing rapidly, with significant milestones achieved across the line, according to the NHSRCL. Construction at all three elevated stations - Thane, Virar, and Boisar - is underway, with the first slabs cast at Virar and Boisar stations.

Across the corridor, foundation and pier construction continue at multiple sites, with approximately 44 km of piers already erected. Notably, viaduct work has begun in Palghar using advanced full-span box girder launching technology, while excavation of seven mountain tunnels is actively in progress, showcasing the project's engineering scale.

Bridge work has also commenced over three important rivers—Vaitarna, Ulhas, and Jagani—adding vital infrastructure to the route. An exceptional feature is the 21-kilometre underground and undersea tunnel linking Bandra-Kurla Complex (BKC) station to Shilphata, with 16 km being excavated using Tunnel Boring Machines and 5 km via the New Austrian Tunnelling Method. This includes a pioneering 7 km undersea segment beneath Thane Creek.

So far, around 4.1 km of tunnel has been excavated using NATM, while construction from two fronts continues. Vertical development is also evident with extensive base slab casting at Vikhroli (56 metres deep) and Sawli (39 metres deep). Additionally, sludge treatment plants are being installed at shaft locations, and tunnel lining segment production is underway at the Mahape yard.

At the Bandra Kurla Complex station, 80 per cent of excavation work is complete, with base slabs cast at the 100 ft level from ground. The project’s progress signifies a major step forward in delivering India’s first high-speed rail corridor.