Scour at bridges and structures


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 (