FD1920 - River Sediments & Habitats & the impact of Maintenance Operations & Capital Works

Theme:Strategy and Policy Development
Project status:Completed
Start date:14/07/2003
End date:31/03/2004
  • Flood and Coastal Defence,
  • Land,
  • Processes,
  • Environmental Protection,
  • Flood Defence
  • HR Wallingford Ltd
Project Closing Statement:
This work describes the first stage of a project to improve the understanding of the interactions of sediments, habitats and conveyance as affected by maintenance operations and capital works. The primary objective of this first stage was to identify the requirements for field trials, identify suitable locations, data collection requirements and protocols for data quality, checking and storage. The results will be used to develop stage 2 of the project, in which it is intended that field trials and demonstrations be carried out. These results will then be interpreted to provide information on the self-regulatory nature of conveyance response, effective river management and new approaches to sustainable maintenance and channel design, including adaptive management for flood defence.

Summary Objective:
Using field trials and demonstration projects, improve the understanding of the impact of engineering works in rivers on the sediments and habitats by updating the existing geomorphology module to the existing RHS methodology that would help determine sediment sources, movements and fates in catchments including a comprehensive floodplain component.

Key Customer Purpose:
To improve the effectiveness of river maintenance, design river works which are more in tune with natural processes and improve the overall management of rivers, flood plains and their associated habitats.