Technology and philosophy

Showing posts with label railroads. Show all posts
Showing posts with label railroads. Show all posts

Saturday, July 18, 2026

Nepal: The Developing World's Bridge Builder

Kathmandu, July 3 – At the age of 13, Padam Gurung faced a river that separated him from his school.

Living in a tiny village located in Sindhupalchok, crossing the river was an everyday routine. One rainy season, heavy floods destroyed the wooden bridge that the local people relied upon. For the following seven months, there wasn’t a secure route to cross, making going to school impossible.

In the end, locals stretched a steel cable over the river and fastened a wooden crate to it. In order to get to the other side, Gurung needed to haul himself along the wire with his hands. "Each crossing required payment," he remembered. "It was extremely dangerous, and parents were constantly anxious that their kids might never come back home."

One year later, a suspended bridge was constructed, taking the place of the temporary passage.

After more than four decades, Gurung's path has returned to where it began. The child who previously had difficulty crossing a river now dedicates his efforts to assisting other nations in constructing their own bridges.

After becoming part of the Trail Bridge Programme organized by Helvetas, a Swiss-based development group, in 1996, Gurung has been involved in constructing numerous suspension bridges throughout Nepal. Additionally, he has shared his knowledge internationally, assisting initiatives in nations such as Burundi, Cameroon, and Ethiopia, where he has instructed engineers, offered guidance to authorities, and aided local populations in addressing challenges similar to those he encountered during his childhood.

His narrative highlights an extraordinary yet underappreciated transformation in Nepal's role within global development efforts. For years, foreign engineers came to Nepal to assist with issues related to remote communities. Now, Nepalese engineers are traveling to Ethiopia, Tanzania, and Guatemala to share their knowledge and help address similar difficulties elsewhere.

This change gained formal structure in 2008 with the creation of the South-South Cooperation Unit by Helvetas, which is currently called TRAC4Change. Instead of constructing connections for other nations, this program aimed to assist governments in developing their own capabilities by sharing the expertise, technical specifications, and educational frameworks that Nepal had cultivated over many years.

With the help of TRAC4Change, Nepalese engineers have assisted governments in 11 nations, such as Bhutan, Ethiopia, Tanzania, Indonesia, Guatemala, and Afghanistan, in establishing their own trail bridge initiatives based on Nepalese engineering techniques, local guidelines, and practical expertise.

We do not wish to construct a bridge and then depart," stated Ansu Tumbahangfe, head of TRAC4Change. "Our aim is to empower the community.

Nepal's capacity to export this knowledge didn't appear suddenly. In the 1960s, the Swiss Agency for Technical Cooperation (SATA), operating via Helvetas, collaborated with Nepal to tackle the nation's issues related to rural seclusion. Throughout the hilly regions and mountainous areas, rivers often separated communities from educational institutions, healthcare centers, and marketplaces. During the rainy season, these crossings turned into greater risks, leaving whole villages completely cut off for days or even weeks.

Swiss and Nepalese engineers discovered the answer not in Europe, but within Nepal itself. They turned their attention to communities in regions like Baglung, which had constructed simple chain bridges over many years utilizing indigenous materials and ancestral expertise.

Tumbahangfe stated, 'The Swiss and Nepalese engineers adopted this native technology and enhanced it.'

In contrast to traditional bridges, path bridges can be constructed without the use of large equipment, using materials transported manually, and involving significant input from nearby residents during the building process.

Engineering quality is strong, yet the design is far more straightforward," Tumbahangfe stated. "We believe it costs at least ten times less compared to traditionally built bridges.

Nepalese engineers also stopped creating each bridge separately. Rather, they created standardized modular designs that could be modified for various sites, significantly cutting down on both design time and building expenses.

Gradually, the program extended past just building bridges. Engineers created 16 technical guides addressing surveying, design, construction, upkeep, and standards assurance, with trail bridge engineering becoming integrated into higher education institutions and vocational training throughout Nepal.

Not only are we exporting a bridge," Tumbahangfe stated, "but we are also exporting an entire system.

When Helvetas ceased its direct assistance in 2023, more than 11,000 trail bridges were constructed throughout Nepal, facilitating over one million crossings daily. Research indicated that these structures boosted school enrollment by 16% and improved access to prenatal care by 31%.

However, for Gurung, the significance of a bridge has never been assessed solely through numbers.

Gurung remembers a village in Burundi where people used to pay boat drivers to get across the river. Once the bridge was completed, the whole community came together for a celebration.

They began to sing," he remembered. "I questioned my translator about their lyrics. He informed me they were singing, 'Remove the boat. The bridge has set us free.' I experienced immense pride.

The festival brought back memories for Gurung of his early years in Sindhupalchok, where parents constantly feared for their kids' safety while crossing the river every day.

Via TRAC4Change, Nepalese bridge specialists and engineers such as Gurung work for four to five months at a time with municipal authorities, advisors, builders, and technical staff. Educational programs include lectures, site inspections, and hands-on guidance. Certain classes last over a month. Eritrean representatives mention that this method sets Nepal's support apart from traditional aid initiatives.

Prior to implementing Nepal's trail bridge system, rural areas in Ethiopia encountered similar difficulties that Nepal had dealt with years before. Communities often found themselves isolated from schools, healthcare facilities, and marketplaces when rivers overflowed during the wet season. Individuals either took perilous routes across the water or invested significant time navigating around to find the closest secure passage.

These difficulties ultimately prompted Ethiopian authorities to turn to an unexpected authority: Nepal.

"Designing and constructing trail bridges lacked both awareness and technical expertise," stated Tsehay Tsegaye, Helvetas' National Coordinator for Ethiopia.

Rather than following a costly international model, Ethiopian authorities discovered a solution within a nation that had previously encountered comparable severe limitations.

Tsegaye stated, 'Nepal's approach was basic, scalable, and cost-effective.' 'The structure could be adapted according to the location, and the building techniques were easy to implement.'

The rugged landscape of Ethiopia, marked by mountains, rivers, and steep gorges, posed similar geographic difficulties as those found in Nepal. "Due to Ethiopia's limited resources," Tsegaye noted, "constructing trail bridges proved to be an effective way to address the issue of remote communities being cut off."

Currently, 272 trail bridges have been constructed throughout Ethiopia with assistance from Nepal. More significantly, Ethiopian engineers now do not depend on Nepalese specialists for designing each project.

Tsegaye stated, 'The program has allowed Ethiopian engineers to choose locations, plan, and build trial bridges on their own.' Engineers in Ethiopia can now construct steel trusses and suspension bridges reaching up to 120 meters without external assistance.

"Autonomy stands as one of the program's most significant accomplishments," she remarked.

The initiative has recently moved into a fresh stage. With funding provided by the World Bank, Ethiopia intends to build an additional 600 trail bridges within the coming three years, utilizing the framework that Nepal assisted in developing.

This is a victory for us," Tumbahangfe stated. "Nepal spent approximately 40 years establishing the system. Ethiopia is accomplishing it in just 20.

The most significant indicator of Nepal's achievement could be that its involvement is steadily decreasing. Previously, four Nepalese bridge specialists were working in Ethiopia, but now only two remain. Local engineers are taking greater responsibility for managing projects on their own. "This is exactly what we aim for," Tumbahangfe stated. "In time, our assistance won’t be required anymore."

The process of exporting the model also demanded adaptability. In Indonesia, engineers found that the native soil characteristics varied greatly compared to those in Nepal, necessitating changes to the bridge foundation designs. In Ethiopia, the community-driven approach that worked well in Nepal did not yield similar success. Instead of mainly using local labor, initiatives began focusing more on contractor-managed execution. “Every aspect must be adjusted according to the local situation,” Tumbahangfe mentioned.

This year earlier, representatives from Tanzania visited Nepal to observe the trail bridge initiative up close. They traveled from Kathmandu to Pokhara, passing numerous bridges throughout their route.

Many of them experienced for the first time a complete national bridge network designed around a uniform, affordable system. By the conclusion of the tour, several officials committed themselves to promoting trail bridge development within their respective departments.

Regarding Tumbahangfe, such responses highlight a longstanding misconception about Nepal. Numerous people continue to view Nepal mainly as an entity receiving assistance instead of one offering developmental knowledge.

This viewpoint is starting to shift in Ethiopia. "Nepal is typically viewed as someone receiving assistance," Tsegaye mentioned. "However, in this instance, it turned into a supplier of knowledge." Ethiopian authorities and engineers now regard Nepal as an equal and a hub for real-world solutions, according to her, enhancing reciprocal respect between the two nations.

One part of the difficulty lies in being seen. Highways, airfields, and major construction initiatives often receive media coverage and support from donors. In contrast, trail bridges are more minor. A standard 60-meter bridge typically ranges in cost from $80,000 to $100,000, which is relatively low compared to other infrastructure expenses.

However, their influence can be significant. TRAC4Change reports that approximately one billion individuals globally still do not have consistent access due to rivers, gullies, and challenging landscapes dividing them from roads and essential facilities. For numerous such communities, a basic bridge might make all the difference.

The initiative is currently looking at growing operations in Bangladesh and identifying prospects in Vietnam and Laos, while maintaining efforts in Tanzania, Ethiopia, and Afghanistan.

However, for Gurung, the importance of the program ultimately boils down to a single childhood recollection—the image of a river. He recalls being on one side, observing chances vanishing on the opposite shore. Now, he works to prevent others from encountering similar obstacles.

Once mainly recognized for receiving developmental aid, a nation is now providing its own solutions. Thousands of kilometers away from Sindhupalchok, children are safely crossing rivers due to concepts initially tried out in Nepal's mountain regions.

Saturday, June 20, 2026

Vietnam Unveils $6.5B Rail Link: First in 70 Years from HCMC to Mekong Delta

A railway spanning 175 kilometers, valued at over VND171 trillion (US$6.5 billion), is being planned between Ho Chi Minh City and Can Tho, marking the Mekong Delta region of Vietnam with its initial train connection in almost seventy years.

The project management committee for the My Thuan initiative, responsible for preparing the preliminary feasibility report sent to the Ministry of Construction, has suggested financing the entire railway line using government funding. The route would start from An Binh Station in Di An District of Ho Chi Minh City and terminate at Can Tho Station in Hung Phu District of Can Tho, covering a distance of 175.2 kilometers across Ho Chi Minh City, Tay Ninh, Dong Thap, Vinh Long, and Can Tho.

Passenger services would operate at a maximum designed speed of 160 kilometers per hour, while cargo trains would travel at 120 km/h. There would be 12 stops and three maintenance facilities throughout the route. The initial stage would feature a single line using the standard 1,435 mm rail width, which would eventually be expanded to a dual-track system.

Can Tho is often regarded as the capital of Vietnam's Mekong Delta region, known as the nation's primary rice producer and a major contributor to its seafood and fruit exports.

The delta ceased to have a railway after the Saigon-My Tho line from the French colonial period shut down near 1958. Now, goods and passengers mainly travel through heavily crowded roads and rivers to get to Ho Chi Minh City and its harbors.

According to the board's research, the HCMC-Can Tho route is expected to manage approximately 1.46 billion tons of cargo and over 326 million passenger journeys each year by 2050, with rail potentially handling around 23 million tons and 16 million travels per annum.

A KTX train in South Korea travels at approximately 150-180 km/h. Photo by VnExpress/Anh Duy

The line forms part of a rail initiative Vietnam is advancing at an exceptional pace. At its core is the approximately $67 billion North-South high-speed railroad, a 1,541-kilometer route capable of reaching speeds up to 350 kilometers per hour, stretching from Hanoi to Ho Chi Minh City, scheduled to start construction by the end of 2026. Meanwhile, the broader national network strategy outlines 25 routes covering around 6,354 kilometers.

The HCMC-Can Tho route is a traditional rail system designed for multiple types of traffic, not an actual high-speed line, yet it follows the same key timeline as the main project: both aim to be largely completed by 2035.

Approximately 56% of the route would run over bridges or viaducts, primarily passing through city zones, densely populated regions, rivers, and locations where it connects with current facilities, whereas the rest, amounting to 44%, would be built on embankments where the soil is solid and flood risks are lower. The first phase bridges would measure around 6.5 meters in width, featuring span lengths ranging from 24 meters up to 450 meters. At the Hau River location, the rail system would use the upcoming Can Tho 2 Bridge. The track will be powered using 25 kV AC electricity, with commuter train operations utilizing decentralized power electric multiple units, cargo transport handled by engine-pulled trains, and full implementation of fiber optic communication along with digital signaling systems.

The advisor presented two financial alternatives. Constructing a shared road bridge spanning approximately 4.7 kilometers at the Hau River crossing would result in an initial investment of roughly VND171.3 trillion ($6.51 billion), whereas building an independent railway bridge would increase this amount to around VND175.11 trillion ($6.65 billion). Referring to the scale of Vietnam's economy and its ability to secure funds, the advisor suggested financing the project through government resources.

Having been under development for over ten years, the initiative has now entered its most advanced phase. It will be submitted to the National Assembly for investment policy endorsement in August 2026, with preliminary engineering designs completed during the first quarter of 2028, land clearing beginning in the same period, and a construction company chosen to commence work in the third quarter.

The railway system of Vietnam will manage the route upon its inauguration.