
Busan’s Aging Pipes and the High-Stakes Subway Expansion
Busan, South Korea - As Busan’s skyline grows and its urban sprawl continues, the city faces a looming crisis underground. Beneath the bustling streets and expanding neighborhoods lies an aging water infrastructure—over 40% of Busan’s water pipes are now more than 30 years old, susceptible to frequent bursts, leaks, and even collapse. These weaknesses in the city’s foundation are increasingly leading to dangerous sinkholes, threatening both public safety and the integrity of essential infrastruc










