A bucket dredge is a type of excavation equipment used primarily for underwater mining and dredging. It consists of a series of large buckets attached to a rotating chain or cable. As the buckets move through the water, they scoop up sediment, sand, or gravel from the riverbed or seabed, transporting it to the surface for processing. These machines are commonly used in construction, mining, and environmental restoration projects. Bucket dredges can efficiently remove large volumes of material, making them valuable for creating navigation channels, deepening harbors, or extracting valuable minerals from riverbeds.