Abstract
There are many types of discontinuous levee on alluvial plain rivers. However, a lot of discontinuous levees are scheduled to be closed by flood control plans.
In recent years, there is a change in flood control plan by the land price falling and the change in social sense of values for nature. The possibility that discontinuous levees remain has come out by the change in flood control plans. In the meantime, the definition of discontinuous levee is vague. For instance, tow types of discontinuous levee that the functions are different have the same name. The difference of recognition to the function of discontinuous levee has a possibility of disturbing right evaluation for discontinuous levees.
In this paper, discontinuous levees are classified by comparing geographical features, levee-shape transition, the functions and historical background of the levees.
