New guidance to improve construction of SuDS

Posted: Thursday 23rd November 2017

CIRIA is set to release new guidance to support professionals with the construction and design of sustainable drainage systems (SuDS).

CIRIA's latest publication, Guidance on the construction of SuDS (C768) aims to support and provide greater confidence to those designing, specifying and constructing SuDS by helping them to understand and avoid the common pitfalls experienced during construction.

The guide complements CIRIA's SuDS Manual (C753), published in 2015, and provides clear, practical advice, diagrams, case studies, checklists and photographs to illustrate challenges faced on site and describes ways of overcoming them. This is supported by practical steer on installation methods and how to incorporate SuDS construction into the correct stages of the construction works programme.

The guide is essential reading for site based staff who are working with or delivering SuDS, but it is also useful information for other stakeholders within the supply chain including; designers, planners and regulators.

Martin Lambley, Wavin, project funders for C768 said;"SuDS are increasingly appearing in the design of many new and existing developments. However the knowledge in SuDS design does not yet fully exist in SuDS installation. Wavin supports this document as we believe it will help bridge this knowledge gap, creating awareness of what is being installed and therefore a better understanding of why it should be installed correctly."

Sue Illman, Illman Young Landscape Design Limited and co-author of C768 added;"Understanding how to build SuDS is probably the best way to learn how to design them properly."

The updated Guidance on the construction of SuDS (C768) is collaboratively funded and will be free to download, available from the CIRIA website ( CIRIA also manage the susdrain website, ( that provides a range of resources and information for those involved in delivering SuDS.

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