India’s first bullet train corridor between Mumbai and Ahmedabad has reached a significant milestone with the completion of 300 km of viaducts. This achievement was marked by the launch of a 40-metre-long full-span box girder near Surat, Gujarat.
The project has leveraged indigenously designed and manufactured equipment, including straddle carriers, launching gantries, bridge gantries, and girder transporters, with support from the Japanese government.
The adoption of the full-span launching method has accelerated girder erection, making it ten times faster than conventional segmental methods. Each full-span box girder weighs 970 metric tonnes.
To facilitate construction, 27 dedicated casting yards have been established along the corridor. Additionally, steel bridges are fabricated in seven workshops across Gujarat, Uttar Pradesh, Tamil Nadu, Maharashtra, and West Bengal.
More than 300,000 noise barriers have been installed along the viaducts to mitigate noise once operations commence.