China's Insane Underwater Tunnel Is Already Falling Apart — Engineers Are Calling It a Scam

China has built some of the world’s most ambitious underwater infrastructure — but questions surrounding tunnel waterproofing, inspection reports, concrete durability, seawater exposure, and long-term maintenance are raising serious concerns. In this deep-dive, we examine the Hong Kong–Zhuhai–Macau Bridge Tunnel, the Jiaozhou Bay Tunnel, underwater concrete corrosion, chloride penetration, reinforced steel deterioration, waterproofing failures, and the risks that may emerge years after construction. The engineering achievements are remarkable. But when major infrastructure is built under intense cost, schedule, and inspection pressures, what happens when problems remain hidden beneath the water? This video explores the documented cases, engineering mechanisms, and long-term risks behind China’s massive underwater tunnel network. #China #ChinaInfrastructure #UnderwaterTunnel #TunnelEngineering #Engineering #Infrastructure #HongKongZhuhaiMacauBridge #JiaozhouBayTunnel #CivilEngineering #MegaProjects #Construction #Concrete #StructuralEngineering #InfrastructureNews