Jetties are horizontal structures that extend from the shore into a body of water, such as a lake, river, or ocean. They are typically made of wood, concrete, or stone and are used to protect the shoreline, provide a safe harbor for boats, or aid in navigation.
The primary purpose of jetties is to control the flow of water and prevent erosion along the shoreline. They are built perpendicular to the shoreline and help to trap sediment that would otherwise be carried away by currents. This deposit of sediment helps to stabilize the beach area and protect it from erosion.
Jetties also serve as protective barriers for boats and ships. By extending into the water, they provide a buffer zone that can shield vessels from strong waves and currents. This creates a more sheltered area where boats can be moored or docked safely.
In addition to their protective functions, jetties often serve as aids to navigation. They act as markers and guide ships safely into harbors or channels by reducing the risk of running aground or colliding with submerged hazards.
Jetties can be found in various sizes, ranging from small structures suitable for recreational purposes, such as fishing or swimming, to large industrial jetties used for cargo handling or offshore oil operations.
Overall, jetties play a crucial role in shoreline protection, safe boating, and navigation, making them important structures in coastal zones worldwide.
