Websystem (pipes, swales, storage areas, ponds, etc.) and how these relate to submitted calculations. • Detailed engineering plans (including levels, detail drawings, long sections and cross sections, etc.) will be needed for each of the SuDS and critical drainage elements, including details of the methods of flow control. WebCritical Drainage Areas (CDAs) representing one or several LFRZs as well as the contributing catchment area and features that influence the predicted flood extent. Within …
Flood Risk and Drainage Assessment Hillingdon - Unda Consulting …
WebCritical Drainage Area 019 Su rf ac eW tFl o dH z R ing 1 in 100 Chance of rainfall event occurring in any given year (1% AEP) Drain London Programme Board Members … WebThe London Borough of Hillingdon is a large borough located in Greater London, England. It has approximately 260,000 residents and covers an area of 44 square miles. … railway track bed
Appendix 2 Roles and Responsibilities of Risk Management …
http://hillingdon.lbhill1-prd.gosshosted.com/media/9235/Fig-23---Depth-100-Critical-Drainage-Area-022/pdf/Fig23_-_Depth_100_Critical_Drainage_Area_022.pdf?m=1648583617143 This map provides an indication of the location of rivers within the London Borough of Hillingdon. The information is obtained from a collection of sources: 1. main river information is obtained from the Environment Agency. … See more This area is shaded purple. This map provides an indication of areas at risk of surface water flooding. The council uses the Government … See more This map provides an indication of flood risk from rivers. The Functional Floodplain (Flood Zone 3B) This zone is shaded light green. Flood zone 3b is defined by the Planning Practice Guidance. The zone comprises land … See more Web19.8 As outlined in the SWMP Maps (EBC 4.64), the updated Critical Drainage Areas do not result in any allocations made within the CLP 2, now being considered at increased surface water flood risk. 19.9 Modifications (CBC1.6) are proposed to the supporting text to update references to the latest national data resources and in response to the ... railway track buckle in heat