Hard and Soft Engineering methods

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  • Created by: narmathan
  • Created on: 07-05-13 10:02

Dam Construction

  • Dams are often built along the course of a river in order to control the amount of discharge. Water is held back by the dam and released in a controlled way. This controls flooding.
  • Water is usually stored in a reservoir behind the dam. This water can then be used to generate hydroelectric power or for recreation purposes.
  • Building a dam can be very expensive.
  • Sediment is often trapped behind the wall of the dam, leading to erosion further downstream.
  • Settlements and agricultural land may be lost when the river valley is flooded to form a reservoir.

River engineering

  • The river channel may be widened or deepened allowing it to carry more


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