Levee
device · 3000 BC · Ancient world
An embankment against floods.
What it is made of
- Earth embankment — has part. An earth embankment.
- Clay core — has part. A clay layer that keeps water out.
- Stone-faced embankment slopes — has part. Slopes reinforced with stone or turf.
Principles and materials it uses
- Universal gravitation — uses. The weight of the embankment holds back the water.
- Clay — is made of. Levees were built up of earth and clay.
History: what it evolved from and what it influenced
- Dam — evolved into. A retaining structure.