• Establishment of sea and river pavements .
• Construction and maintenance of wave bumpers .
• Construction of floating walks .
• Island construction, linking and backfilling of low-lying valleys .
• Construction and maintenance of dams.
• Installation and maintenance of underwater lines (water, gas, drainage).
• Dredging and shedding works.
• Deepening in front of the ports' docks, dams, lakes and collapse.
• Opening the watercourses between the islands.
• Transfer of dredging products with flat barges, the mechanical apprenticeships, horizontal expulsion pipes.
• Tipper transport after drying .
• Sediment basin work .
