A century-old French-built railway in Yunnan, China, remains abandoned after decades of landslides and human cost. Vietnam now eyes a modern high-speed alternative.
Historic railway line abandoned in 2003
A railway line built by French engineers more than a century ago still winds through the mountains of Yunnan in southern China. Its tracks, tunnels, and bridges remain, but no passengers have used them since 2003.Engineering feat and high cost
The meter-gauge line, constructed by the French Indochina and Yunnan Railway Company between 1904 and 1910, stretches 465 km between Kunming and Hekou. The construction of the line, which included 155 tunnels and 107 bridges, is estimated to have cost thousands of lives, with estimates ranging from 12,000 to over 50,000 deaths.Notable structures and historical protection
The French Indochina and Yunnan Railway Company was founded in 1901 with a capital of twelve million five hundred thousand francs. The entire line connected Haiphong, Vietnam, to Kunming, with the Chinese section running from Kunming to Hekou. The line was built on meter-gauge tracks, allowing for better adaptation to the tight turns imposed by the mountains. The Faux-Namti viaduct, also known as the Renzi Bridge, is a notable structure on the line, spanning a gorge 102 meters deep above the Sicha River. It is now protected as a major historical site by Chinese authorities since 2006.Disputed human toll
Regarding the human toll, sources strongly diverge according to their origin. The most widely cited French count mentions 12,000 deaths among the 67,000 workers employed, including 80 engineers. A Chinese source cited at the Kunming Train Museum, however, puts the toll much higher, between 50,000 and 60,000 victims. Historian Virginia Thompson has even mentioned the figure of 100,000 deaths, considered excessive by more cautious evaluations that speak rather of several tens of thousands of victims.Decline due to natural and structural issues
Starting with the 2001 rainy season, the section between Kaiyuan and Hekou began to pose serious problems. The rugged terrain and poor geological quality of the ground caused repeated rockfalls and landslides. The line, already a century old in some parts, showed worrying signs of wear that the original infrastructure could no longer absorb without colossal maintenance. Chinese authorities suspended the Kunming–Hekou passenger service in June 2003. Only freight traffic was maintained on this section, gradually leaving the stations and platforms empty of regular human presence.End of international service and recent developments
The final blow for cross-border travelers came in 2005, the date on which the international service definitively ended. Most of the passenger cars were then given to Burma, while the traffic that had still run twice a week in 2000 quietly faded away. Nevertheless, this connection experienced a second breath with the resumption of international freight in 1996, followed by the resumption of cross-border passenger service in 1997, before falling back into oblivion a few years later.Legacy and future plans
Today, the tunnels drilled with dynamite and the metal bridges assembled rivet by rivet continue to exist, entwined by tropical vegetation that is eager to reclaim its territory. Meanwhile, neighboring Vietnam is resolutely looking to the future: in February 2025, its National Assembly approved an investment of $8.37 billion for a brand new Lao Cai–Hanoi–Haiphong line, with standard gauge and designed to travel at 160 kilometers per hour, thus turning the page on the meter-gauge line inherited from French colonization.
