84 pc excavation work completed at Mumbai bullet train station, the only underground station on Mumbai-Ahmedabad HSR corridor

Mumbai Bullet Train Station: Underground Marvel Takes Shape in Bandra Kurla Complex

Mumbai’s ambitious Bullet Train project is zooming ahead, with the underground station at Bandra Kurla Complex (BKC) leading the charge. Officials shared exciting updates on Friday, revealing that about 84% of the excavation work for this Mumbai-Ahmedabad High-Speed Rail (HSR) corridor station is now complete. This makes it the only fully underground stop on the entire route.

Imagine digging down 32.5 meters—that’s roughly 106 feet or the height of a 10-storey building! Workers have already removed 15.7 lakh cubic meters of earth out of the total 18.7 lakh needed. The platform will sit at about 26 meters below ground, with three levels: the platform, concourse, and service floor. Get this—there will be six platforms, each stretching 415 meters long, connecting seamlessly to metro lines and major roads.

To make getting in and out super easy, the station features two entry-exit points. One links straight to the nearby Metro Line 2B station, while the other heads toward the MTNL building. Planners have designed it with plenty of space for crowds, plus smart features like dedicated skylights to let in natural light and keep things bright and airy.

Behind the scenes, the site buzzes with high-tech setups. Three batching plants, each churning out 120 cubic meters of concrete per hour, are up and running. These come with ice plants and chillers to keep the concrete at the perfect temperature. There’s even a modern on-site concrete lab for tests like water permeability and rapid chloride penetration. All concrete checks happen right there, with samples occasionally sent to top labs for double verification.

Construction crews are now pouring the base slab using M-60 grade concrete for the slab and M-80 for the columns. This base slab marks the deepest part of the Mumbai Bullet Train station. In total, they’ll use around two lakh cubic meters of concrete just for it— and they’ve already poured 51,321 cubic meters. Each pour handles 3,000 to 4,000 cubic meters of temperature-controlled mix, produced fresh on-site.

Key structural work is done too: 3,388 secant piles, 2,203 running meters of capping beams, and 2,078 running meters of flood walls now secure the site. Civil works for the entire Bullet Train project are moving at a brisk pace, highlighting India’s skill in building world-class infrastructure with global tech.

Japan, as a key partner, brings cutting-edge expertise to this game-changer. Once finished, the Mumbai-Ahmedabad Bullet Train corridor will slash travel time between the cities, delivering a faster, safer, and more reliable ride for millions. This high-speed rail dream is turning into reality, one deep dig at a time!

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