preliminary flood risk assessment drain london

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As identified in Part 2 of the FRR, flooding associated with the sea, main rivers and reservoirs is the responsibility of the Environment Agency and does not need to be considered by the LLFA as part of the PFRA process, unless it is considered that it may affect flooding from local flood sources. 1.3 Objectives The aim of this document is to fulfil LBB’s obligations as the LLFA under the requirements of the FRR. The PFRA aims to locate areas in which the risk of surface water, ordinary watercourse and groundwater flooding is significant and warrants further examination through the production of maps and management plans. The aim of this PFRA is to provide an assessment of local flood risk across the study area, including information on past floods and the potential consequences of future floods. The key objectives can be summarised as follows: � Identify relevant partner organisations involved in future assessment of flood risk; and summarise means of future and ongoing stakeholder engagement; � Describe arrangements for partnership and collaboration for ongoing collection, assessment and storage of flood risk data and information; � Provide a summary of the systems used for data sharing and storing, and provision for quality assurance, security and data licensing arrangements; � Summarise the methodology adopted for the PFRA with respect to data sources, availability and review procedures; � Assess historic flood events within the study area from local sources of flooding (including flooding from surface water, groundwater and ordinary watercourses), and the consequences and impacts of these events; � Establish an evidence base of historic flood risk information, which will be built up on in the future and used to support and inform the preparation of LBB’s Local Flood Risk Strategy; � Assess the potential harmful consequences of future flood events within the study area; � Review the provisional national assessment of indicative Flood Risk Areas provided by the Environment Agency and provide explanation and justification for any amendments required to the Flood Risk Areas. 1.4 Study Area – Geography Extent The Brent PFRA study area covers approximately 4,310 hectares of North West London (Figure 1-1). The study area includes the urban areas of Brondesbury Park, Kensal Rise, Kenton, Kilburn, Kingsbury, Sudbury, Wembley and Willesden. 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
Figure 1-1 London Borough of Brent Boundary Brent is bordered by the London Boroughs of Barnet, Camden, Westminster, Kensington and Chelsea, Hammersmith and Fulham, Ealing and Harrow. The study area falls within the Thames River Basin District and is served by one water only company – Veolia Water Central Limited and one Water and Sewerage Company - Thames Water Utilities Limited. The study area is served by the Environment Agency South East Region and is part of the Thames Regional Flood and Coastal Committee. The LBB shares a member with Barnet, Harrow and Hillingdon on the Thames committee. 1.5 Study Area – Demographics Based on the 2001 Census the population of Brent was 263,454. In 2006 the GLA re-estimated the population of the borough to be approximately 278,500. There are approximately 108,000 households in the borough (LBB Core Strategy, 2010 viii ). By 2016/2017 the number of new homes within the borough is set to increase by 11,200 according to the London Plan (2009) housing capacity targets. As part of the London Plan the following areas were identified as potential regeneration areas within the borough: Barnhill, Dudden Hill, Harlesden, Kensal Green, Kilburn, Stonebridge, Welsh Harp and Wembley (Figure 1-2). UA002334 - Drain London— London Borough of Brent PFRA Hyder Consulting (UK) Limited-2212959 Page 3 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 14 and 15: Figure 1-2 Areas for regeneration (
Page 16 and 17: The INSPIRE Directive (2007/2/EC) i
Page 18 and 19: As the overarching lead for local f
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

preliminary flood risk assessment drain london

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