Hydraulic performance of river bridges and other structures at high flows: scoping study

A review of the range of ways of estimating afflux used in the UK and other countries, and the supporting science.

From:
Department for Environment, Food & Rural Affairs, Flood and Coastal Erosion Risk Management Research and Development Programme and Environment Agency
Published
16 February 2021
Category:
Understanding risks from all sources of flooding
Topics:
Asset performance, Hydrology, Modelling, Monitoring and detection and Resilient infrastructure
Project status:
Completed
Project code:
SC010029
Date of completion:
31 March 2004

Documents

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Details

Background

Bridges and other structures can have a considerable effect on flood levels during high flows and can cause flooding if blockages occur. Hydraulic modelling needs to take account of such structures but there鈥檚 a lack of consistent approach. Various methods are used, not all of which are relevant for any particular structure, channel geometry or flow conditions.

Objectives

This project aimed to:

  • review existing knowledge and methods to support practitioners when choosing appropriate ways of estimating afflux at structures
  • identify future research that would improve knowledge and tools available to practitioners
  • provide the science to support decision-making

Outcome

This scoping study reviews the range of methods of estimating afflux used in the UK and other countries, in part through a questionnaire survey of selected practitioners. It identifies where further research is needed.

This project ran from 2001 to 2004.

Updates to this page

Published 16 February 2021
Contents