The CIRIA SuDS Manual was first published in 2007. Since then, understanding has grown in the UK and internationally regarding how sustainable drainage systems (SuDS) should be incorporated into developments to maximise the many benefits that they can provide.
HR Wallingford led an update the Manual to reflect latest research and best practice, so that it would remain as the key reference document for SuDS planning and design in the UK, used by both decision-makers and practitioners.
Although the project started out as an ‘update’, in reality the manual been completely rewritten. A great deal of thought was put into scoping out the document, working closely with the very large and diverse project steering group. The new Manual has a revised structure to maximise clarity, accessibility and legibility for the breadth of the anticipated audience. No longer is this a document just for drainage engineers. The new Manual is intended to be read by landscape architects, architects, planners, urban designers, developers, environmental regulators, ecologists, drainage approval bodies, highways authorities, sewerage undertakers, contractors and proprietary drainage and other product manufacturers.
The new Manual promotes an integrated SuDS philosophy that helps planners and designers secure the greatest value from surface water, whilst effectively mitigating flooding and pollution risks posed by surface water runoff from developments.