![]() ![]() Conducting a multi beam survey or single beam survey will provide the needed data to engage in this activity. There are several ways to do this in the modern world. To ensure the right amount of sediments are dredged, we need to conduct a survey and get a good picture of what lies beneath the water. Some of the type of dredging machines are Suction dredgers, Mechanical dredgers to name the 2 most common ones. There are several different ways to engage in dredging and in modern times some very fancy equipment has been developed to monitor and make this process easier. The remains of three dredging boats have been unearthed they were abandoned at the bottom of the harbour during the first and second centuries AD. At Marseille, dredging phases are recorded from the third century BC onwards, the most extensive during the first century AD. There was extensive harbour building in the eastern Mediterranean from 1000 BC and the disturbed sediment layers gives evidence of dredging. Dredging goes back to the ancient Egyptian times where the Nile was channelled, and wharfs built. Authorities engage in it to maintain and build harbours, ports and wharfs to encourage trade and attract merchants to their shores. In some instances it is done to accommodate marine life for commercial value.įrom ancient times to today, dredging has been a vital activity. Altering drainage, dam construction or to recover valuable mineral deposits. Some of the other reasons to engage in dredging are to improve existing water features, reshaping land/ water bodies. Larger ships also need certain levels of water to float and travel or anchor in harbours and berths. This is done to ensure ships have a safe and clear passage to navigate the channel and have the appropriate levels of under keel clearance. With the most common one being the maintenance of or increasing the depth of navigation channels, anchorages, or berthing areas. Dredging is performed for several reasons. ![]()
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