Is dredging noticeable?
During the dredging process a dredge plume is sometimes seen. This is simply temporary elevated levels of sediment suspended in the water that comes from the physical action of the dredging activity.Similar events can be observed during and after big storms that can also stir up the sediments in the water giving them a temporary milky or cloudy appearance.Depending on the type, shape and size of the sediments and the prevailing conditions will determine how long these sediments take to settle.The majority of the sediments are siliceous (silica)sands that tend to settle very quickly.