Jurong Island Phase 4 increased the land surface of Singapore with 540 hectares, and the Tuas View extension added another 920 hectares. In order to execute the phase 4, following works have been performed: dredging of sandkey trenches; construction of sandkeys; construction of general reclamation; slope trimming; construction of armour; Slope protection; leveling and compaction of reclamation; drainage works; soil testing; surveys; protection of existing structures; dredging and widening of fairways; rock blasting; design of two jetties for VLCC oil tankers; jetty construction; pipeline installation; removal of existing Single Buoy Moorings (SBM’s) and pipelines.