Mechanical dredging is a process used to remove sediment and debris from the bottom of water bodies, such as rivers, lakes, and harbors. This method employs heavy machinery, like dredgers, which scoop up material from the seabed and transport it to the surface. The dredged material can include sand, mud, and other unwanted substances. This technique is often used to maintain navigable waterways, create new land, or restore habitats. Mechanical dredging is efficient and can be performed in various environments, making it a popular choice for construction projects and environmental restoration efforts.