India’s first bullet train corridor between Mumbai and Ahmedabad achieves significant milestone 

In a major milestone for India’s first bullet train project connecting Mumbai and Ahmedabad, the construction of a 300-kilometre-long viaduct has been successfully completed. This achievement was marked by the successful launch of a 40-metre-long full-span box girder near Surat in Gujarat, signaling significant progress in the country's high-speed rail ambitions.

Accelerated Construction with Full Span Launching Method

A large portion of the viaduct—about 257.4 km—was constructed using the advanced Full Span Launching Method (FSLM). Another 37.8 km was built using the Span-by-Span (SBS) method. The overall structure also includes 14 river bridges, 0.9 km of steel bridges (with 10 spans ranging from 60 to 130 metres across 7 bridges), 1.2 km of PSC bridges (with 20 spans ranging from 40 to 80 metres across 5 bridges), and 2.7 km of station buildings.

Massive Girders and Indigenous Equipment

A total of 6,455 full-span girders and 925 SBS spans, each 40 metres long, were used in the construction. Each full-span box girder weighs approximately 970 metric tons. Impressively, all the major construction equipment—such as straddle carriers, launching gantries, bridge gantries, and girder transporters—were designed and manufactured indigenously, giving a significant boost to the ‘Make in India’ initiative and showcasing India's growing capabilities in infrastructure development.

Nationwide Manufacturing and Noise Control Measures

To support this massive construction, 27 casting yards have been established along the corridor. Steel bridge components were manufactured across seven workshops in India—three in Gujarat and one each in Uttar Pradesh, Tamil Nadu, Maharashtra, and West Bengal—reflecting a spirit of national integration and collaboration. Moreover, to minimize noise during train operations, more than 300,000 noise barriers have already been installed along both sides of the viaduct.

Supporting Infrastructure Rapidly Progressing

Alongside the viaduct, major infrastructure works including 383 km of pier construction, 401 km of foundation work, and 326 km of girder casting have also been completed. The construction of bullet train stations is progressing swiftly. These stations will be integrated with both railway and road transport systems to ensure seamless travel for passengers, and they will offer state-of-the-art amenities.

Track Work Underway

Track laying on the viaduct has already begun, with approximately 157 km of Reinforced Concrete (RC) track bed completed in Gujarat. Additionally, modern rolling stock depots are being developed in both Maharashtra and Gujarat to support train operations.

This accomplishment reflects robust project planning, cutting-edge engineering, and a strong commitment to the Government of India’s ‘Make in India’ policy. Once operational, the Mumbai-Ahmedabad bullet train is expected to transform high-speed travel in the country and set new benchmarks for infrastructure excellence.