Alarming Degradation of the Longest Railway Tunnel on Hai Van Pass

The Hai Van Pass, stretching across the rugged mountains of Central Vietnam, is globally renowned for its breathtaking scenic beauty and historic engineering marvels. However, recent images highlighting the severe degradation of the longest railway tunnel on this historic route have raised serious concerns among transport authorities, engineering experts, and the public. Built during the colonial era, this vital piece of infrastructure has weathered decades of harsh tropical elements, heavy rainfall, and constant train traffic, resulting in visible structural wear that poses a potential risk to the safety of the North-South railway line.

Reports and photographs from inside the tunnel reveal alarming signs of deterioration, including active water leakage through the concrete lining, cracked walls, and corroded track components. The constant dampness inside the tunnel accelerates the wear and tear of the steel rails and wooden sleepers, requiring frequent, high-effort maintenance to prevent accidents. Because the tunnel is narrow and located in an incredibly remote, mountainous area, conducting comprehensive repairs is an immense logistical challenge that requires specialized equipment and careful scheduling to avoid disrupting vital national rail services.

As one of the most critical bottlenecks in Vietnam's railway network, the preservation and modernization of the Hai Van Pass tunnels are of paramount importance. Transport experts are calling for urgent, comprehensive investment and restoration projects to reinforce the structural integrity of the tunnel, install modern drainage systems, and ensure the long-term safety of passenger and freight trains. Protecting this historic and functional engineering asset is not only crucial for the nation's transportation efficiency but also for preserving the rich historical heritage associated with the iconic Hai Van Pass.

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