The Ham is a 128 metre long hopper dredger with a 35 metre suction pipe which it employs to move sand out of a designated area. It operates in two ways:
It can either pump the dredged sand into its 9000 cubic metre hold and then move it to where it is needed as they do in Holland, or, it can just suck up the sand and water and move it out the way. The ship is able to operate in shallow water as it only has a nine metre draft.
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