Morphological effects of river improvement works: case studies

Fisher, K. (1992) Morphological effects of river improvement works: case studies. Technical Report. Hydraulics Research Wallingford.

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Abstract

River improvement works can change the capacity of the channel to transport sediment causing areas of deposition and erosion. Morphological effects are often not considered at the planning stage of an improvement scheme, and it is only when the scheme is operational that problems become apparent and may cause large maintenance commitments and costs. In total, six case studies have been carried out, to assess the morphological effect of river works using a morphological model. All the schemes have involved some improvement works to channel or structures and the morphological model was used to represent the selected stretches of river both for pre and post improvement schemes and to identify the possible causes of deposition and/or erosion problems.

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