Regardless of the water depth, the distance between the water surface and the crown remains constant.
Therefore, there will be no height gap between ships and the quay. Also, since the pier is moored with posts, it sways very little.

These are placed offshore to reduce or break waves. A design that is backed by maritime structural technology provides stable performance. These breakwaters provide an economical and easy-to-construct breakwater for deep water and weak seabed areas.
These are environmentally friendly structures that do not disturb the sea currents.

This is a deep-water, footed, detached breakwater that was developed with the Public Works Research Institute to prevent coastal erosion and for multipurpose utilization of coastal areas.

These are one element (box) in constructing submarine tunnels that are divided into sizes that will not impair towing and sinking. There are different types, such as hybrid steel and concrete caissons, steel-reinforced caissons, etc. (The photograph shows a steel and concrete caisson.)