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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