The Magdalena River mouth in South America is experiencing changes in sediment levels due to high sediment transport and man-made structures. The river mouth is slowly deepening overall, but goes through cycles of erosion and sedimentation. Erosion rates average 310 mm per year, while sedimentation rates average 293 mm per year. The river mouth can experience rapid changes in sediment levels, with erosion and sedimentation rates reaching up to 1450 mm and 2625 mm per year, respectively. These rapid changes pose challenges for navigation and require innovative solutions to manage the river mouth effectively.