Dredging is the process of removing sediment and debris from the bottom of water bodies like rivers, lakes, and harbors. This activity helps maintain navigable waterways, allowing boats and ships to pass safely. Dredging can also improve water quality by removing pollutants and promoting better aquatic habitats. There are different methods of dredging, including mechanical dredging and hydraulic dredging. Mechanical dredging uses equipment like buckets or clamshells to scoop up material, while hydraulic dredging uses high-pressure water jets to dislodge sediment, which is then suctioned away. Both methods are essential for various environmental and construction projects.