Mumbai–Ahmedabad Bullet Train Update: Viaducts, Stations & Signals

Overview & Context

The Mumbai–Ahmedabad High-Speed Rail Corridor (MAHSR)—India’s inaugural bullet train project spanning ~508 km—is currently under rapid construction. With Japanese collaboration and domestic manufacturing, the route will connect Mumbai’s BKC with Ahmedabad and other key cities via 12 stations.

Viaduct Construction Milestones

• 300 km of viaducts have been completed as of May 2025, including 257.4 km using Full Span Launching Method (FSLM) and 37.8 km using Span-by-Span (SBS) techniques.
• Construction has also progressed on 383 km of pier foundations, 401 km of track foundations, and 326 km of girder casting.
• Environmental protection measures include installing over 300,000 noise barriers along viaduct sections.

Station Building Progress

• At Vapi station (Gujarat segment), civil work is complete, and interior setup—roof structure, electrical systems, lounges, escalators—is underway.
• Work at Mumbai’s underground BKC station has reached 76% excavation completion (depth ~26 m), with base-slab casting, batching, and concrete testing in progress.
• Six out of eight Gujarat stations are structurally finished, while three elevated stations in Maharashtra continue under construction.

Signalling & Systems Contract

• A consortium of DRA Infracon & Siemens JV has received the Letter of Acceptance for the signalling and telecom Package S‑1, including design, installation, integration, testing, and maintenance over seven years. The contract value is ₹4,140 cr.

Timeline & What Lies Ahead

• Partial trial operations on the Gujarat stretch are anticipated in 2026; full corridor operations are expected between 2028–2030.
• Track-laying has begun: ~157 km of reinforced concrete track beds are complete in Gujarat.
• Advanced infrastructure includes three mega tunnels (incl. 7 km under Thane Creek), 14 river bridges, 7 steel bridges, and 5 prestressed concrete bridges.
• Ongoing work includes casting yards, fabrication facilities, and rolling-stock depots in Maharashtra & Gujarat.