![]() ![]() In fact, in a usual dredging cycle, self-propelled trailing suction hopper dredgers, barges and other ships spend the majority of their time sailing back and forth between extraction sites and placement sites, transporting materials between the port and the borrow site sailing between borrow sites and sailing from sites where material has been extracted to unloading or placement sites. The purpose for dredging can be maintenance of the depth or the deepening of navigation accesses or channels, it can also be land reclamation, coastal protection, seabed stabilisation for the offshore energy installations or the removal of contaminated sediments. ![]() using a boat or special device: They have to dredge the canal regularly to keep it open. ![]() transporting it to the relocation site and unloading the material or object. dredge verb T (REMOVE) to remove unwanted things from the bottom of a river, lake, etc. With state law in effect, the use of vacuum or suction dredge equipment, otherwise known as suction dredging, is unlawful in California rivers, streams. This technique is often used to keep waterways navigable. It involves collecting and bringing up, fishing up or clearing away or out material and / or any object from the bed of a river, sea, etc. Under existing state law the California Department of Fish and Wildlife is also currently prohibited from issuing any permits for suction dredging in California under the Fish and Game Code. Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location. Dredging is the maritime transportation of natural materials from one part of the water environment to another by specialised dredging vessels. ![]()
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