A jet suction dredger is a type of dredging vessel or equipment used to remove sediments, debris, or other materials from the bottom of bodies of water such as rivers, lakes, or harbors. The dredging process involves the use of high-pressure water jets and a suction system to loosen and transport material.

It usually has the following uses:

Maintenance Dredging: Removing accumulated sediments to maintain navigable channels for ships and boats.

Land Reclamation: Collecting material to reclaim land from the sea or expand existing land areas.

Environmental Remediation: Cleaning up contaminated sediments in water bodies.

Construction Projects: Excavating and removing materials for infrastructure projects such as the construction of bridges, ports, or pipelines.