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The 5 most common types of sea wall protections

Writer's picture: Equipo InccaEquipo Incca

Updated: Jul 23, 2023

In the construction of marinas in Mexico, one of the key aspects is the protection of the maritime walls against erosion and the maintenance of a constant depth to guarantee a safe navigation of the vessels. In this article, we will explore the five most common types of sea wall protection and the techniques used to ensure the desired depth in marinas.


  1. Rock riprap: Rock riprap is a technique widely used in construction of marinas to protect the maritime walls. It consists of placing stones or concrete blocks in areas exposed to the action of waves and marine currents. These rock rock structures act as barriers that absorb and disperse the energy of the waves, thus protecting the maritime walls from erosion.

  2. Breakwater: Breakwaters are structures made of large blocks of stone or rock arranged in the form of a wall parallel to the coastline. These protections are particularly effective in areas where erosion is intense. The breakwaters break the energy of the waves and redirect the flow of currents, helping to preserve the stability of the sea walls and maintain the adequate depth in the marinas.

  3. Breakwaters: Breakwaters are structures built perpendicular to the coastline, extending out to sea. They can be made of materials such as stone, concrete, or steel. Breakwaters are used to protect areas of the marina against the direct impact of waves, creating a zone of calm water behind them. This helps to maintain constant depth and ensure safe access for vessels.

  4. Geotextiles and geobags: Geotextiles and geobags are synthetic materials that are used to protect maritime walls. These materials are resistant to erosion and are installed in areas exposed to waves and ocean currents. Geotextiles act as a physical barrier, while geobags, filled with sand or granular material, act as shock absorbers. These solutions provide effective and flexible protection for seawalls.

  5. Dredging: Dredging is a technique used to maintain constant depth in marinas. It consists of removing the sediments accumulated on the seabed, thus ensuring an adequate depth for the safe passage of vessels. This technique



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