Annual report 20108.31 MB - Boskalis

62Trailing suction hopper dredgersTrailing suction hopper dredgers fill their own holds by sucking upmaterial from the seabed using a trailing suction head while the ship sails.The dredged material can be transported over large distances. Dumpingmethods include rainbowing, as shown in the large photograph. Boskalishas a fleet of around 30 trailing suction hopper dredgers, including one ofthe world’s largest, the Queen of the Netherlands, whose assignments in2010 included the four islands project in the Maldives.