The second phase construction commenced in July 1999. First,
ground improvement works for Holocene clay layer mainly us-
ing a sand drain method were carried out. After that, the seawall
was built all round the second phase island site to start execu-
tion of the reclamation. The reclamation work consists of three
stages: soil dumping by hopper barges, soil heaping by re-
claimer barges and multi-layered construction by bulldozers and
rollers. Figure 5 shows procedure of second phase construction.
In this section, the outlines of construction works are described.