Watercourse management
© Eawag, WSL, ETHZ, EPFL

This refers to locally limited widening of channels
to benefit people and the environment.


Channel widening can rehabilitate regulated watercourses and reduce the extent of streambed erosion and the risk of flooding. Widening the river gives it the opportunity for self-dynamic development of a typical equilibrium.




Objectives of widenings:

  Streambed stabilisation
  Flood control
  Improvement of water quality
  Ecological enhancement
  Increased value as a recreational area


> Types of structure and methods of construction


> Selected examples from Switzerland


Rohde, S. (2004). River restoration: Potential and limitations to re-establish riparian landscapes.
Assessment & Planning. PhD Thesis. 133 pp. ETH Zurich and WSL Birmensdorf.