Bank erosion in regulated navigable rivers: Towards a process-based model of bank retreat

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After the European Water Framework Directive, riverbanks in several countries had the protections removed to improve the water quality and the river ecosystem. Particularly, the Meuse River currently has several kilometres of freely eroding banks, which may have consequences for other river functions such as navigation and flood conveyance. The understanding, quantification and prediction of the morphological evolution of restored banks is thus relevant to manage the integrity of all river functions and improve future restoration practices. This work analyses the results of a recently developed model to estimate bank retreat in regulated waterways and compares them with measured profiles. The model essentially accounts for the major drivers of erosion, i.e., primary and secondary ship waves, considers homogenous cohesive banks, and computes erosion rates through a Partheniades-type of formulation. The results show a good qualitative and quantitative agreement with measurements. Erosion rates are yet not accurate with the current approach, for which future work will focus on improving the temporal representation through the inclusion of other factors and processes affecting erosion rates. These are, for instance, statistically representative time series of ship waves, currents during floods, and elements affecting erosion processes such as mass failures, slump-block dynamics and vegetation.
Original languageEnglish
Title of host publicationRiver Flow 2020
Subtitle of host publicationProceedings of the 10th Conference on Fluvial Hydraulics
EditorsW. Uijttewaal, M.J. Franca, D. Valero, V. Chavarrias, C.Y. Arbos, R. Schielen, A. Crosato
Place of PublicationLondon
PublisherCRC Press / Balkema - Taylor & Francis Group
Number of pages6
ISBN (Electronic)978-1-003-11095-8
ISBN (Print)978-0-367-62773-7
Publication statusPublished - 2020
EventRiver Flow 2020: The 10th Conference on Fluvial Hydraulics - Delft, Netherlands
Duration: 7 Jul 202010 Jul 2020


ConferenceRiver Flow 2020

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


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