Sustainable Operation of a Small‐scale Flood‐attenuation Wetland and Dry Pond System

Pond structures as cost‐effective source‐control drainage techniques can be applied in order to reduce the downstream risk of flooding. In the UK, there are no widely accepted performance data on pond structures, yet there is a need for detailed design and operation guidelines, coupled with data on urban biodiversity enhancement, maintenance, reliability, economics and social acceptance. The purpose of this study was to investigate (a) cost‐effectiveness and self‐sustainability of stormwater pond systems, and (b) compatibility with the primary needs of water removal and storage to wildlife and amenity enhancement. A case study was used, based upon a combined attenuation wetland and dry pond construction for roof‐water runoff.