What are the embankments on the sides of a river made from deposited sediment called?

Levees are natural or artificial embankments that form along the sides of a river due to the accumulation of sediment deposited during flooding events. As the river overflows its banks, the heavier sediments are deposited closest to the river's edge, gradually building up these elevated structures. Levees play a critical role in managing floodwaters, as they help contain the river within its channel and can reduce the risk of flooding in adjacent areas. This sedimentary process is fundamental to the river's floodplain ecosystem, influencing local habitats and hydrology.