For construction vast amounts of sand is needed. To extracted the sand a deepwater dredge is designed able to dredge to a depth of 45 meter. This CSD designed for dredging sand is designed to keep the operation cost as low as possible. This is done by keeping the design as simple as possible. The extraction of sand is done in a small pond because of this calm water the design of the dredger was simple and non traditional. However dredging on a depth of 45 meter is was a big challenge. The dredge starts at water level with extracting sand and go to the depth of 45 meter without changing the configuration of the dredge. It is even possible to extend the dredging depth to over 60 meter.