Wednesday, 16 January 2013

Flood Management Schemes: Realignment/Diversion

Realignment/Diversion


Description:

A river is either diverted through a relief channel or given a straighter route by removing meanders or slower sections of the river.

Advantages:

  • Provides alternative route
  • Straighter and shorter course
  • Steeper gradient
  • Aids navigation
  • Reduces flood risk
  • Habitats may survive
  • Allows some control
Disadvantages:
  • Totally artificial environment
  • Destruction of most river habitats
  • May cause greater flood risk downstream

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