Author(s): Ronnie Falconer
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Abstract: Surface Water Management Plans (SWMPs) are being prepared for key locations across the UK believed to be at high risk of surface water flooding. This paper reviews some recent developments and approaches relevant to the preparation of SMWPs. It draws on a work undertaken in preparing one of the Defra First Edition Surface Water Management Plans completed for the London Boroughs of Richmond and Kingston; also relevant work undertaken for the Scottish Environment Protection Agency. The paper presents a staged approach to SWMP preparation, covering initial screening, more detailed risk assessment and the subsequent evaluation of mitigation measures. A hybrid approach to screening is presented using a combination of GIS-based‘dry’mapping and‘wet’mapping techniques with specific rainfall input. Mapping is verified by a targeted site inspection programme which also forms the basis for undertaking an initial risk assessment using a points-based scoring system. Mitigation measures are assessed using a multicriteria approach and stakeholder review in a workshop environment. Case study examples are provided for Richmond, Kingston and Edinburgh. There are many synergies between good practice and approaches that are evolving through the preparation of SWMPs in the UK and the aims of the EC Flood Resilien City (FRC) project–in particular the FRC aims relating to pluvial flood resilience and urban flood resilience. The bringing together of emerging practice with leading-edge research programmes can often act as a catalyst for innovative ideas. This paper seeks to present such opportunities for innovation by considering these synergies within a European wide context.
Year: 2010