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Manual on scour at bridges and other hydraulic structures, second edition (C742)

Structures built in or near rivers and other channels can be vulnerable to scour around their foundations. If the depth of scour becomes significant, the stability of the foundations may be endangered, with a consequent risk to the structure of damage or failure. The factors influencing the development of scour are complex and vary according to the type of structure.

This updated version to the original manual published in 2002 places emphasis on providing specific guidance within the contexts, regulations and legislation of the UK (England, Wales, Scotland and Northern Ireland) and Republic of Ireland. It is for engineers and asset managers engaged in the design, construction, operation and maintenance of structures in the water environment that may be subject to scour of erodible beds or banks. It is relevant to scour problems in the UK and worldwide, affecting both new and existing structures.

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