Cap Gammarth and the coast of La Marsa in Tunisia are subject to coastal erosion: breakwaters and hydraulic defense works are the necessary solutions. Coastal erosion is a significant environmental problem affecting many coastal areas around the world. Groynes and hydraulic defense works have been planned to counter coastal erosion and protect these areas from further damage.
Alpha Consult performed the preliminary design and modeling for the project of sustainable protection of the coastal environment and the reconstruction of the beach to make room for hotels on the coast.
The maintenance of the sand and the preservation of marine ecosystems, biodiversity and the safety of the populations living in these areas were the essential objectives of the project. Coastal erosion control has been achieved through the use of coastal stabilization techniques, natural barriers such as sand dunes, as well as man-made structures such as groynes and breakwaters, to protect coasts from erosion and storms.
Sand replenishment works have been planned for beach rehabilitation, which involves adding sand to beaches to restore their natural width and height. The arrangement of the breakwater will allow the formation of an area for the use of hotel bathers.
The protection of marine ecosystems with the Posidonia nursery conceived with SOPAT, Societè de Paysage de Tunisie, was envisaged to strengthen the protection of marine ecosystems, coastal wetlands and habitats to preserve marine biodiversity and the capacity of these ecosystems to provide essential ecosystem services.