Dams and reservoirs

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  • Created by: Sam Evans
  • Created on: 29-11-14 19:14

Dams and reservoirs

Advantages

  • Reservoirs store water, especially during periods of prolonged or heavy rain which reduces flooding
  • The water in the reservoir is used as drinking water and can be used as drinking water and be used to generate hydroelectric power (HEP)

Disadvantages

  • Dams are very expensive to build
  • Creating a reservoir can flood existing settlements
  • Eroded material is deposited in the reservoir and not along the rivers natural course so farmland downstream can be less fertile

Evaluation

Dams (huge walls) are built across the rivers, usually in the upper course. A reservoir (artificial lake) is formed behind the dam

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