Overview

• The National High-Speed Rail Corporation Limited launched a 40-metre pre-stressed concrete box girder at Sakhare village in Dahanu on June 20.
• Weighing 970 metric tonnes, the monolithic girder is the heaviest ever used in the country’s construction sector.
• Full-span girders enable viaduct assembly up to ten times faster than conventional segmental methods.
• Specialized Make in India machinery, including straddle carriers and bridge-launching gantries, has been deployed to handle these large units.
• The 508-kilometre corridor, backed by Japan, is scheduled for completion by 2028 to introduce advanced high-speed rail infrastructure.