First 100 m Span of a 2 X 100 m long Steel Bridge launched over NH – 48 in Gujarat for Bullet Train Project

Mumbai, Maharashtra, Apr 26, First 100 m span of 2 X 100 m long steel bridge was successfully launched over NH-48 (connecting Delhi, Mumbai & Chennai) near Nadiad, Gujarat.
According to a press release issued by National High Speed Rail Corporation Limited (NHSRCL) company here today, This ‘Make in India’ steel bridge comprising two 100 m long steel spans are planned for crossing NH-48 for the Bullet Train corridor, out of which one is successfully launched.
NH-48 is one of the busiest highway of six lanes (three lanes on each side). The first span of the bridge was launched on the highway across the three lanes by sliding the span for about 200 m from one end. The launching was carried out with a schedule to ensure smooth traffic flow on the busy highway, minimizing disruption to road users.
The 100 m span of this steel bridge, measuring approximately 14.6 meters in height and 14.3 meters in width, weighs around 1414 metric tons. Fabricated at the workshop in Salasar, near Hapur, Uttar Pradesh, the steel bridges are designed for a 100-year lifespan.
The bridge is constructed with approximately 57,200 Tor-Shear Type High Strength (TTHS) bolts, C5 system painting, and elastomeric bearings. It was assembled on temporary trestles at a height of 14.9 meters above the ground and was moved using an automatic mechanism with two semi-automatic jacks, each capable of lifting 250 tons, with mac-alloy bars.
There are 28 steel bridges planned for the entire corridor. Out of which, 11 steel bridges are in Maharashtra and 17 are in Gujarat. Seven steel bridges have been successfully launched in Gujarat over Railways/DFCC tracks, Highways & Bhilosa Industry.