Describe and explain the formation of levees?

Levees are natural or artificial embankments that form along riverbanks due to sediment deposition during flood events. When a river overflows its banks, the velocity of the water decreases, causing sediment carried by the flow to settle along the edges, gradually building up raised barriers. Over time, repeated flooding and sediment deposition can result in the formation of substantial levees. These structures help to contain river water within its channel and reduce flood risk to surrounding areas.