Level 2 Strategic Flood Risk Assessment (.pdf ... - Wigan Council

Map Name Map Reference Map Title DescriptionSurface WaterFloodingbeen produced from the Environment Agency Areas Susceptible to Surface WaterFlooding map. Surface water flooding has been classified as high, intermediate andlow susceptibility. These maps are supplemented by the wealth of historical floodingdata that is available in the Wigan area.Set F - ClimateChange Sensitivity2009s0578 - D006_001FLUVIALCLIMATECHANGESENSITIVITYFluvial areas sensitive to climate change in Wigan Borough1% AEP + cc outlines from Environment Agency models at borough level. Thesemaps provide early indication of areas in which fluvial flooding is likely may increaseover the next 50 years. These maps are useful when carrying out a sweep of sitesthat may require the Exception Test by Spatial Planners, Development Managementand developers in assessing possible future fluvial risks. Emergency planners mayalso find them useful when designating access routes.Set G - CriticalDrainage Areas2009s0578 - D007_001CRITICALDRAINAGEAREASCritical Drainage Areas in Wigan BoroughDisplays Critical Drainage Areas, Flood Zones, Historical Flooding Records andSurface Water Flooding. These maps have been produced showing the boundary ofCritical Drainage Areas based on known historical flood events, the refined surfacewater mapping and natural catchment boundaries. These maps should be used toscope site-specific FRAs and as a starting point in the identification of areas forSWMPs.Set G - CriticalDrainage Areas2009s0578 - D007_002CRITICALDRAINAGEAREASCritical Drainage Areas and Flood Zones in Wigan BoroughDisplays Critical Drainage Areas and Flood Zones. These maps have been producedshowing the boundary of Critical Drainage Areas based on known historical floodevents, the refined surface water mapping and natural catchment boundaries. Thesemaps should be used to scope site-specific FRAs and as a starting point in theidentification of areas for SWMPs.Set G - CriticalDrainage Areas2009s0578 - D007_003CRITICALDRAINAGEAREASCritical Drainage Areas, Flood Zones and Surface Water Flooding in WiganBoroughDisplays Critical Drainage Areas, Flood Zones and Surface Water Flooding. These2009s0578 Final SFRA with Environment Agency Comments - L2 Ver5 Wigan.docIX