Scour at bridges and structures

This workshop will review how research into scour continues to improve our understanding of the mechanisms and, importantly, how the outcome of this research is being used by asset owners and others.



Scour is not a new phenomenon, but the increasing frequency and intensity of extreme weather events over the past ten years has acted as a salient reminder of (a) the vulnerability of aged infrastructure assets and (b) that the design basis for more newly constructed works may not be as robust as intended.

For example, the collapse of the Tadcaster bridge in 2016, widely reported in the media is an illustration not only of the structural damage, but also the significant social and economic consequences of a vital transport link. The very recent bridge collapse near Grinton in North Yorkshire during a summer flash flood is a further illustration.

Scour, therefore, remains a significant concern to transport infrastructure operators, property owners and utility operators whose assets lie on or cross river banks. 

Industry’s experience and understanding of scour and its prevention continues to grow, along with research council and industry investment in research. This workshop will illustrate some of this research and how it is being applied.

The event will also briefly introduce CIRIA’s forthcoming project to produce a supplement to our existing Scour Guidance CIRIA C742: Manual on scour at bridges and other hydraulic structures (2015).

The project will feature projects supported as part of NERC’s Environmental Risks to Infrastructure programme (

Why attend

  • To understand the challenges faced by  major UK infrastructure owners relating to scour and debris
  • To hear about some of the projects relating to scour and debris underway in the UK’s universities
  • To hear illustrations of how this research and its outputs is informing industry practice.


09:30    Webinar available to log in
             (please log in at least 5 minutes before broadcast)

10.00    Introduction

             Overview of scour challenges and engagement with research

10.05    Mark Pooley, Highways England

10:15    Steven Roffe, Network Rail

             Responding to industry challenges through research

10:25  Assessing scour caused by debris.

            Prakash Kripakaran,  University of Exeter

10:40  Resilience of National Transport Networks to Flood-induced Bridge Failures

            Maria Pregnolato, University of Bristol

10:55  Reducing flood debris and flow risk for infrastructure resilience
             Mark Trigg, University of Leeds

11:05  Introduction to CIRIA supplement to its scour guide
            Owen Jenkins, CIRIA

11:15 Questions and discussion

Who should attend

Owners of transport and other assets vulnerable to river hydraulic scour

Researchers and others interested in scour mechanisms

Instrumentation and survey companies

Transport and civil contingency planners

21 November 2019
10:00am – 11:30 am



Please sign in or create an account to register for this event.
The link to access the webinar will be sent a week before the event.
Only registered attendees can request a CPD certificate. The webinar link is strictly personal.
If you are experiencing issues registering for this event online please contact us on 
020 7549 3300  or email

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Further information

For further information on CIRIA membership and other services, please contact:
Tel: 020 7549 3300

21/11/2019 - 21/11/2019

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