HISTORY 1993


1995


THE BIG BUILD


THE CONSTRUCTION OF INCHEON AIRPORT REMAINS SOUTH KOREA’S BIGGEST EVER CIVIL ENGINEERING PROJECT.


S 18


outh Korea’s biggest ever civil engineering project, the construction of Incheon Airport, began in November 1992 with the start of work to reclaim 4,743 hectares of land from the sea between Yeongjong and


Yongyu islands.


Phase one involved building huge 7.3 and 6.2 kilometre long dykes between the two sparsely populated islands to block off the sea and create the actual airport site itself.


Critical phase two concerned dredging the tidal site and transforming the former seabed – essentially a five-metre thick layer of silt clay – into


a solid surface capable of withstanding major building work.


Phase three involved the construction of the gateway’s infrastructure – namely its massive 496,000sqm terminal building, runways, 100-metre ATC tower and other facilities necessary for a major international airport. The dykes, which today form the airport’s boundary with the sea, are monumental in size, each measuring a height of nine metres and ranging in width from 90 to 120 metres at the bottom to 20 metres at the top. The combination of their size, the airport’s sheltered location and shallow one-metre water depth around the former islands, ensures that Incheon Airport can


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