Japan Built an Entire Airport in the Sea And It Started Sinking

How do you build an international airport in the middle of the ocean? In this episode of MegaStructure Lab, we explore the extraordinary engineering behind Kansai International Airport, one of the largest artificial-island megaprojects ever attempted. Located in Osaka Bay, Japan, Kansai Airport was built entirely on reclaimed land created from the sea. Before a single runway could be constructed, engineers first had to build a giant seawall, transport millions of tons of rock and fill material, and create an artificial island capable of supporting a world-class international airport. In this documentary, you'll discover: ■ How engineers selected the site in Osaka Bay ■ The construction of the giant seawall perimeter ■ The massive land reclamation operation that created the island ■ Ground stabilization and settlement-control systems ■ Runway and airport infrastructure construction ■ The iconic terminal designed by Renzo Piano ■ The unexpected challenge of the island slowly sinking ■ How Kansai Airport became one of the world's most famous engineering achievements From open sea to a fully operational international airport, this is the complete construction story of Kansai International Airport. Subscribe to MegaStructure Lab for weekly documentaries covering the world's most ambitious engineering and infrastructure projects. #KansaiAirport #AirportConstruction #MegaProjects #CivilEngineering #MarineEngineering #Infrastructure #EngineeringDocumentary #MegaStructureLab