What is a dam? What are the different types of dams?
A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment.
Dams are classified according to their structure, intended purpose or height. On the basis of structure and material used, dams are classified as:
- Timber dams
- Embankment dams or masonry dams.
According to their height, dams can be categorised as:
- Large dams or major dams
- Low dams
- Medium height dams
- High dams