100-Meter ‘Make in India’ Steel Bridge Installed in Silvassa for Mumbai-Ahmedabad Bullet Train Corridor
A significant milestone has been achieved in the Mumbai-Ahmedabad Bullet Train Project with the successful installation of a 100-meter-long steel bridge near Silvassa in Dadra & Nagar Haveli. This state-of-the-art infrastructure is a testament to India's engineering capabilities under the ‘Make in India’ initiative, aiming to bolster the country’s high-speed rail network.
Massive 1464-MT Steel Structure Fabricated in Trichy and Transported to Silvassa
The newly launched bridge, weighing an impressive 1,464 metric tonnes (MT), stands 14.6 meters high and 14.3 meters wide. Fabricated at a state-of-the-art workshop in Trichy, Tamil Nadu, the massive structure was meticulously designed and manufactured before being transported to its final location in Silvassa. The transportation process was executed using specialized trailers to ensure the bridge reached its destination safely and efficiently.
Innovative Launching Technique Used for Smooth Installation Without Intermediate Support
To facilitate a seamless installation process, a temporary launching nose was strategically incorporated. This structure, extending 84 meters and weighing 600 MT, was connected to the main bridge, allowing for smooth placement without the need for intermediate support. Additionally, several temporary reinforcements were installed to enhance the bridge's structural stability during the launching phase.

High-Strength Friction Grip (HSFG) and Tor-Shear Type Bolts Used for Maximum Structural Integrity
The assembly of this advanced steel bridge required an extensive number of high-strength bolts to ensure durability and safety. Approximately 27,500 High-Strength Friction Grip (HSFG) bolts were used to secure the components of the launching nose. Additionally, around 55,250 Tor-Shear Type High Strength (TTHS) bolts—designed with C5 system painting and elastomeric bearings—were used to reinforce the main bridge structure, ensuring long-term resilience against environmental factors and heavy loads.
Bridge Assembled at 14.5-Meter Height Using Semi-Automatic Jack Mechanism
The entire bridge, along with the launching nose, was pre-assembled near the installation site at a height of 14.5 meters above ground. Temporary trestles were used to provide initial support during the assembly. A specialized semi-automatic jack mechanism, consisting of two high-powered jacks, was employed to precisely position and pull the bridge into place, ensuring accuracy and safety in the launching process.
Mumbai-Ahmedabad Bullet Train Project Moves One Step Closer to Completion
The installation of this steel bridge marks a significant leap forward in the Mumbai-Ahmedabad Bullet Train Project, which aims to revolutionize India's transportation sector with world-class high-speed rail infrastructure. With cutting-edge engineering solutions and ‘Make in India’ innovations driving progress, the project is steadily advancing towards its goal of delivering India's first-ever bullet train network, enhancing connectivity and economic growth along the corridor.