An embankment is a raised structure made of earth, gravel, or stones that serves various purposes. It can be either natural or man-made and is often used to prevent water from carrying over during a flood or to support a roadway, railway, or canal. Embankments are typically constructed using non-aerated and waterproofed, compacted (or entirely non-porous) material to provide adequate support to the formation and a long-term level surface with stability). They can be made of soil, concrete, aggregate, or rock, depending on the size and purpose of the embankment. Embankments can be found in various sizes, from small ones supporting creeks or irrigation ditches to large ones creating stability for major canals and the ships coursing through them. They can also be used to support lowlands, such as valleys, that may need to be crossed. In summary, an embankment is a man-made or natural wall that serves to hold back water, support a roadway, railway, or canal, or prevent flooding of land.