These environmental impacts can significantly hurt marine wildlife populations, contaminate sources of drinking water and interrupt economic activities such as fishing. Dredging systems can either be shore-based, brought to a location based on barges, or built into purpose built vessels.ĭredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Dredges have been classified as suction or mechanical. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.ĭredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Possible reasons for dredging include improving existing water features reshaping land and water features to alter drainage, navigability, and commercial use constructing dams, dikes, and other controls for streams and shorelines and recovering valuable mineral deposits or marine life having commercial value. Need To Know: The dual wedge attained its nickname due to the flange being reduced with. It practically is a gap wedge with a different name. This makes it a similar loft and length to a gap wedge. Wikipedia Rate this definition: 0.0 / 0 votesĭredging is the excavation of material from a water environment. A DW golf club, or a D wedge, is a dual wedge that is usually made one club shorter than a pitching wedge and one club longer than a sand wedge.
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