Here is a Small info about construction of palm Jumeirah Island.

The Palm Islands are artificial peninsulas constructed of sand dredged from the bottom of the Persian Gulf by the Belgian company Jan De Nul and the Dutch company Van Oord. The sand is sprayed by the dredging ships, which are guided byDGPS, onto the required area in a process known as rainbowing because of the arcs in the air when the sand is sprayed. The outer edge of each Palm's encircling crescent is a large rock breakwater. The breakwater of the Palm Jumeirah has over 7 million tons of rock. Each rock was placed individually by a crane, signed off by a diver and given a GPS coordinate. The Jan De Nul Group started the work on the Palm Jebel Ali in 2002 and finished by the end of 2006. The reclamation project of the Palm Jebel Ali includes the creation of a 4 km long peninsula, protected by a 200 m wide and 17 km long breakwater built around the island. 135,000,000 m³ of rock, sand and limestone were reclaimed (partly originating from the Jebel Ali Entrance Channel dredging works). There are approximately 5,000,000 m³ of rocks in the slope protection works.

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