Last edited 08 Dec 2020


The term ‘riparian area’ refers to the interface between land and a river or stream. Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.

It is defined by The SuDS Manual (C753) published by CIRIA in 2015 as: ‘Of, on, or relating to the banks of a natural course of water.’

Culvert, screen and outfall manual, (CIRIA C786) published by CIRIA in 2019, defines riparian as: ‘Along the banks of a watercourse. Riparian zones support riparian vegetation and are of environmental importance, providing diverse habitats and supporting a range of ecological communities.

It, defines a riparian owner as the: 'Owner of land adjoining a watercourse.'

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