Mumbai-Ahmedabad Bullet Train Project: Seventh Steel Bridge Launched Over DFCCIL Tracks Near Vadodara In Gujarat

The Mumbai-Ahmedabad Bullet Train project achieved another key milestone with the successful launch of a 70-metre-long steel bridge over the Dedicated Freight Corridor Corporation of India Limited (DFCCIL) tracks.

The National High-Speed Rail Corporation Limited (NHSRCL), which is the implementing agency for the 508-km high-speed rail corridor, has said that the steel bridge was successfully launched over the two DFCCIL tracks near Vadodara in Gujarat on Tuesday (8 April).

This is the seventh steel bridge completed for the project in Gujarat out of the planned 28 steel bridges for the entire corridor, the NHSRCL said in a statement.

The construction of these seven steel bridges have utilized over 10,000 metric tons of steel providing a significant boost to the steel industries in India, it added.

According to the NHSRCL, the 674 metric tonne steel bridge of 13 m in height and 14 m in width has been fabricated at the workshop in Kolkata's Durgapur and was transported on trailers to the site for installation.

The bridge was launched using 49-meter-long launching nose, which weighs around 204 metric tonne. 

"The bridge fabrication utilized approx. 28800 Nos. of Tor-Shear Type High Strength (TTHS) bolts with C5 system painting and elastomeric bearings, all designed for a 100-year lifespan," the NHSRCL said.

"The steel bridge was assembled at the site at a height of 18 m from the ground on temporary trestles and was pulled with automatic mechanism of 2 number of semi-automatic jacks, each of capacity of 250 ton using mac-alloy bars," it added.

According to the NHSRCL, the launching was completed within 12 hours with intermittent blocks on DFCC tracks.

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