A levee, levée (/ˈlɛviː/; ), dike (or dyke), embankment, floodbank or stopbank is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low-lying coastlines.

Read more about Levee:  Artificial Levees, Natural Levees, Levee Failures and Breaches