By 
How a retired engineer, satellite images, and sheer conviction gave India the Chenab Bridge and connected Kashmir forever
Some national achievements arrive with ceremony and noise. Others unfold quietly—inside drafting rooms, through satellite images, and in the minds of engineers who refuse to accept the word impossible. The Udhampur–Srinagar–Baramulla Rail Link belongs firmly to the second kind.
This railway line cuts through some of the most hostile terrain on Earth. It crosses seismic zones, extreme weather systems, and landscapes that resist straight lines by their very nature. It took decades, not because of lack of intent, but because nature, geopolitics, and engineering were locked in a long negotiation.
At the heart of this achievement lies a story few Indians know—the story of retired railway engineer J. S. Mundrey, the man who conceived the exact alignment of the line and identified the location of what would become the Chenab Rail Bridge, today the highest railway bridge in the world.
This is that unseen story.
Before Independence, Jammu and Kashmir were connected by rail through Sialkot to Jammu. Partition erased that connection overnight. For years afterward, Kashmir remained isolated from India’s railway network. Jammu itself was only fully connected by the mid-1970s. When Prime Minister Indira Gandhi laid the foundation stone for the Jammu–Udhampur section in 1983, it was more than an infrastructure project—it was a national promise that Kashmir would one day be connected to India by rail.
What followed instead were decades of delays, limited funding, and near abandonment. Railways do not forgive poor planning, especially in the mountains. Stations cannot be built on slopes because trains will begin to roll. Curves cannot be too sharp without destroying speed and capacity. Gradients cannot be too steep without requiring additional engines. Rivers cannot be crossed casually; the angle of crossing determines the fate of foundations for centuries.
Every decision locks itself into the future.
By the mid-1990s, the Indian government decided the rail line must extend all the way to Baramulla. But railways cannot be built without a final location survey—a detailed mapping of every curve, tunnel, station, bridge, and gradient. At that moment, Kashmir was deep in insurgency. Survey teams refused to enter. Consultants backed out. Even Indian Railways’ own agencies declined. The project froze.
That was when the Chief Engineer reached out to J. S. Mundrey, who had recently retired and was running a small consultancy. Years earlier, Mundrey had attended a technical workshop with the Survey of India on using satellite imagery, aerial photography, and digital terrain modelling for large infrastructure surveys. At the time, the ideas felt futuristic. Now, they were the only option.
Using satellite imagery sourced from French providers, aerial photographs, digital terrain models, and GPS reference points, Mundre proposed something unprecedented for Indian Railways: a complete railway alignment designed remotely, without boots on the ground. It was radical, risky, and entirely necessary.
The Railways accepted.
The most formidable challenge remained the Chenab River. The crossing had to be high enough to maintain gentle gradients, aligned perfectly to avoid sharp curves, founded on rock strong enough to support a massive structure, and capable of withstanding earthquakes and fierce winds. A mistake would permanently restrict speed and capacity on the line.
Through meticulous analysis of river morphology and terrain, Mundrey and his team identified a narrow window where geometry, geology, and alignment aligned. That precise point would later become the site of the Chenab Rail Bridge.
Mundrey took his plans to some of the world’s most respected bridge consultants, including Steinman and his team. Several bridge designs were explored, but geology would decide the final form. Years later, engineers confirmed the rock was dolomite—less strong than expected. A circular arch would not work. Instead, a parabolic arch was chosen, ensuring all forces remained in compression. Extensive rock bolting and deep anchoring transformed the foundation into something capable of carrying history.
Experts from across the world—England, Finland, the United States, and beyond—came together to make it real.
On June 6, 2025, the Udhampur–Srinagar–Baramulla Rail Link was finally completed. For the first time in history, Kashmir became connected to the rest of India by rail throughout the year. Pilgrimage, tourism, logistics, and national integration were transformed by a line drawn decades earlier on a map.
Yet, the man who first imagined it remains largely unknown.
This conversation is not just about a bridge. It is about how engineering decisions echo across generations, how innovation is born under constraint, and how one quiet, determined mind reshaped India’s geography.
🎥 Watch the full conversation here:
👉 https://youtu.be/qntweBJymm8
Listen to J. S. Mundrey tell this story in his own words. Some infrastructure connects places. This one connects history, resilience, and the hidden brilliance of Indian engineering.
Don’t miss it.
The Engineering Fraternity , mainly those work with vision for the future, certainly provide the way for enhancing livability on the Mother Earth. Since they work mostly in Govt Depts, or work for Govt Depts , their contributions are not recognised in Public. Now an ERA started which looks deeper and recognise everyone in the team from all the stages of “vision to realization”. Thanks to the man here, who brought out this Railway line planning information to the outside world.