Bedload transport continuity through large river widenings

River widenings are a commonly implemented restoration measure to counteract hindered ecological connectivity and disrupted sediment regimes caused by historic channelization. The goal of this project is to better understand how river widenings can impact bedload transport continuity in the river system. Widening a river channel can alter the local morphology, impacting how bedload transport moves through that portion of the system, and in turn can lead to changes in the sediment supply moving downstream. The quantity and frequency of bedload supplied downstream can be affected during the different stages of widening development, inducing and being affected by different initial and long-term morphological impacts on the river that are not yet well understood.

Contact:Meghan Irving
Giovanni De Cesare
Keywords:Resilient rivers, refugia connectivity, stepping stones
Duration:2022-2026
Partners:Research program Wasserbau & Ökologie, FOEN
Funded by:Federal Office for the Environment (FOEN)