A significant milestone in India's infrastructure development was achieved recently with the breakthrough of the Zoji La tunnel, a project set to provide all-weather connectivity between Kashmir and Ladakh. At the heart of this challenging Himalayan endeavor is Yousuf Es'haghpour Rahimabadi, an Iranian engineer whose expertise has guided the tunnel's design and construction since January 2022.
The Engineer Behind the Breakthrough
Yousuf Es'haghpour Rahimabadi serves as the authority engineer for the Zoji La tunnel project. His responsibilities encompass comprehensive oversight, including meticulous design reviews, rigorous construction supervision, and stringent quality checks. Es'haghpour elaborated on his role, stating, “Our job is supervision, making the design and drawing; supervising and correcting; commenting; and designing and checking the design drawing. We also monitor each and every activity of the contractor inside the tunnel.”
His crucial involvement came into focus as Union Minister for Road Transport and Highways Nitin Gadkari remotely triggered the final breakthrough blast at the eastern portal in Minamarg, Ladakh. This event officially linked both ends of the 13.15-kilometer tunnel, marking a major step forward for the strategically important corridor.
Zoji La Tunnel: A Marvel of Engineering
The Zoji La tunnel, situated at an altitude of 11,500 feet, is set to become the world's longest single-tube bi-directional road tunnel. It stretches beneath the formidable Zoji La Pass, connecting the Ganderbal district in central Kashmir with Drass in the Kargil district of Ladakh. Once operational, this vital link will transform travel in the region, which currently sees Ladakh cut off from the Kashmir Valley for extended periods during harsh winter months due to heavy snowfall.
The project, estimated at ₹2,600 crore, is designed as a 7.57-meter-high, horseshoe-shaped, two-lane structure. Its completion is expected to drastically reduce the travel time between Sonamarg and Minamarg from approximately two hours to just 30 minutes, significantly improving efficiency and safety on the Srinagar-Leh National Highway.
Overcoming Himalayan Challenges
Minister Nitin Gadkari hailed the breakthrough as a testament to India’s engineering strength. “This breakthrough in the main tunnel is not just a sign of progress in construction but also a testament to India’s technical prowess, engineering capabilities, and indomitable resolve,” he stated. Engineers and a workforce of around 1,200, including technicians and laborers, have navigated immense challenges, including heavy snowfall, severe weather conditions, and complex geological formations.
The tunnel is being constructed using the New Austrian Tunnelling Method (NATM), a technique well-suited for the fragile Himalayan terrain and its varying rock conditions. Officials from MEIL, the construction company, confirmed that international safety standards have been meticulously followed to address risks such as complex geology, water ingress, and potential tunnel collapses. With excavation complete, work will now proceed on tunnel lining, ventilation systems, safety infrastructure, and other finishing activities. The project is anticipated to be fully completed by May 2028, ensuring uninterrupted all-weather road connectivity for Ladakh.