preliminary flood risk assessment drain london

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As the overarching lead for local flood risk management within the Borough, LBB is responsible for driving the communication of risk to stakeholders and the public by producing and disseminating literature and undertaking communication and engagement events and activities as appropriate. 2.5 Other Responsibilities Aside from forging partnerships and coordinating and leading on local flood management, there are a number of other key responsibilities that have arisen for LLFA from the FWMA and FRR. These responsibilities include: Responsibility Details Asset Register LLFAs have a duty to maintain a register of structures or features which are considered to have an effect on flood risk, including details on ownership and condition as a minimum. The register must be available for inspection and the Secretary of State will be able to make regulations about the content of the register and records. Designation powers LLFAs, as well as the Environment Agency have powers to designate structures and features that affect flooding or coastal erosion in order to safeguard assets that are relied upon for flood or coastal erosion risk management. Investigating flood incidents LLFAs have a duty to investigate and record details of significant flood events within their area. This duty includes identifying which authorities have flood risk management functions and what they have done or intend to do with respect to the incident, notifying risk management authorities where necessary and publishing the results of any investigations carried out. Further information with respect to this duty is provided in Chapter 7. Local Strategy for Flood Risk Management UA002334 - Drain London—London Borough of Brent PFRA Hyder Consulting (UK) Limited-2212959 o:\frr review monitoring & reporting team\publishing\unknown\brent\brent_par.docx LLFAs are required to develop, maintain, apply and monitor a local strategy for flood risk management in its area. The local strategy will build upon information such as national risk assessments and will use consistent risk based approaches across different local authority areas and catchments SuDS Approval Body LLFAs are designated the SuDS Approving Body (SAB) for any new drainage system, and therefore must approve, adopt and maintain any new sustainable drainage systems (SuDS) within their area Works powers LLFAs have powers to undertake works to manage flood risk from surface runoff and groundwater, consistent with the local flood risk management strategy for the area Table 2-1 LLFA Responsibilities under the FRR and FWMA (Brown boxes have yet to be commenced into UK law)
3 Methodology and Data Review The approach for producing this PFRA was based upon the Environment Agency’s PFRA Final Guidance x , which was released in December 2010, and as required within the guidance this PFRA is based on readily available or derivable data. 3.1 Data Sources A number of stakeholders were consulted and provided information used to inform this PFRA. A list of the stakeholders is below along with a summary of the data provided. Stakeholder Information Provided Publicly Available Not Publicly Available British Geological Society Susceptibility to ground water flooding maps, permeability maps British Waterways BW canals network, GIS dataset showing historic overtopping and breaches LBB Brent IUD (2008), Brent SFRA (2007), Barnet Core Strategy (2010) Ordinary watercourses, critical infrastructure (fire stations, schools etc), historical flooding locations, transport infrastructure London Fire Brigade Flood incident database London Underground Pump site data, station flood risk summary Greater London Authority London Plan data including proposed regeneration and intensification areas Administrative boundaries, OS 10k and 50k Mapping ,OS Master Maps, LiDAR Highways Agency Asset data, flood hot spot locations Environment Agency National Receptor Databases, historical flood outlines, modelled flood event outlines, flood affected properties, main rivers, detailed river network, groundwater flooding incidents Natural England SACs, SSSIs, SPAs, Ancient woodland, LNRs, NNRs, RAMSARs, woodland, agricultural land classifications National Health Service Health Trust Maps Network Rail National Rail Network map Thames Water Sewerage networks, asset information and DG5 register Transport for London Main transport links within the Greater London area UA002334 - Drain London— London Borough of Brent PFRA Hyder Consulting (UK) Limited-2212959 Page 9 o:\frr review monitoring & reporting team\publishing\unknown\brent\brent_par.docx
Page 1: PRELIMINARY FLOOD RISK ASSESSMENT D
Page 4 and 5: Executive Summary This Preliminary
Page 6 and 7: 7.2 New FRA .......................
Page 8 and 9: Term Definition Aquifer A source of
Page 10 and 11: Term Definition Resilience Measures
Page 12 and 13: As identified in Part 2 of the FRR,
Page 14 and 15: Figure 1-2 Areas for regeneration (
Page 16 and 17: The INSPIRE Directive (2007/2/EC) i
Page 20 and 21: Table 3-1 Stakeholders contacted an
Page 22 and 23: 4 Past Flood Risk Information provi
Page 24 and 25: incidents, and a majority seem to b
Page 26 and 27: 5 Future Flood Risk As part of the
Page 28 and 29: The Brent SFRA (2007) identified We
Page 30 and 31: Figure 5-8 Cartoon illustrating the
Page 32 and 33: eing used for this PFRA is the Drai
Page 34 and 35: Within the LBB there are 28 regener
Page 36 and 37: 6 Review of Indicative Flood Risk I
Page 38 and 39: 7 Identification of Flood Risk Area
Page 40 and 41: 8.2.1 Incident Recording The Drain
Page 42 and 43: 9 References i Defra (2010) Floods

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