China’s 113 Metre Deep Undersea Tunnel Could Transform Rail Travel The excavation site in southern China's Pearl River Estuary is a testament to human ingenuity, where machines are carving through unstable ground to create a 113 metre deep undersea tunnel.
The project, part of the Shenzhen Jiangmen high speed rail line, aims to connect industrial hubs, major cities, and ports in the region, revolutionizing transportation patterns and business travel.
The scale of the project is daunting: over 13 kilometres of tunnel boring beneath water linked terrain between major urban zones.