Why do ports and harbors have dredgers?

Ports and harbors use dredgers to maintain navigable water depths, ensuring that vessels can safely enter, exit, and maneuver within these areas. Over time, sediment accumulation can reduce water depth, posing risks to shipping and cargo operations. Dredging helps remove this sediment and debris, facilitating efficient maritime transport and protecting against potential hazards. Additionally, dredging can improve the overall environmental health of marine ecosystems by managing sediment flow and habitat conditions.