Mumbai Ahmedabad Bullet Train Full Span Pre-stressed Concrete Box Girder

under construction

The first 40-meter full span pre-stressed concrete box girder for the Mumbai Ahmedabad bullet train corridor has been successfully launched in Maharashtra. Weighing 970 metric tonnes, it is the heaviest girder used in India's construction sector. The girder is cast as a single, monolithic unit, free of construction joints, using 390 cubic meters of concrete and 42 metric tonnes of steel. The use of full-span girders allows construction to progress up to 10 times faster compared to conventional segmental methods. Specialized indigenous heavy machinery such as straddle carriers, bridge launching gantries, and girder transporters are being deployed to support rapid construction.