When sediment accumulates on either side of a river what kind of land form often results?

When sediment accumulates on either side of a river, it often results in the formation of a floodplain. This flat area adjacent to the river is created by the deposition of sediments during flooding events, which enriches the soil and can support diverse ecosystems. Over time, these floodplains can also develop into wetlands or meandered riverbanks, affecting local hydrology and ecology.