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Water Injection Dredging (WID)
WID Crew

Water Injection Dredging (WID) is a dredging technique that removes sediment “the natural way”. It is an efficient and environmentally friendly way of maintaining the depth of navigation channels, ports and rivers. A water injection dredger can work very close to embankments and quay walls because of the manoeuvrability of the vessel.

Vessel work scope

Water injection dredging is highly effective in recently deposited fine sediments that consist of fine sand, silt and clay particles. This unique dredging method injects water into the subsoil and fluidizes the fine sediments creating a density current. This density current moves under the influence of natural forces away from the dredged area and takes the sediment particles with it, either to deeper areas at sea or to high energy environments where the sediment is brought back into the water column, where it becomes part of the natural system of erosion, transportation and deposition of sediments.

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