The Saida reservoir dam project, located in the governorate of Mannouba, was designed to provide a reliable source of water for irrigation and domestic consumption in the surrounding region. The dam was built using a flexible concrete diaphragm wall technique over a length of 1,400 meters to ensure complete waterproofing. The Saida reservoir dam also includes a large volume of fill of 2500,000m3 to stabilize the structure and a quantity of concrete of 30,000m3 for finishing works. The construction was carried out in compliance with the highest quality and safety standards to ensure the durability of the work.