Strategic Flood Risk Assessment - South Worcestershire ...

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ContractThis Level 2 Strategic Flood Risk Assessment (SFRA) Update is commissioned by Malvern HillsDistrict Council, Wychavon District Council and Worcester City Council. The councils'representatives for the contract were Fred Davies, Rosie Murray and Ann Cooper. ClaireGardner, Sophie Dusting and David Kearney of JBA Consulting carried out this work.Prepared by .................................................. Claire Gardner BSc MSc FRGSAnalyst........................................................................Sophie Dusting BScAssistant AnalystReviewed by ................................................. Alastair Dale BSc PGDip MIAHRPurposeDirectorThis document has been prepared as a Final Report for Malvern Hills District Council, WychavonDistrict Council and Worcester City Council. JBA Consulting accepts no responsibility or liabilityfor any use that is made of this document other than by the Client for the purposes for which itwas originally commissioned and prepared.2012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.dociii
AcknowledgementsJBA Consulting would like to thank the following people for their assistance with this project:Adesanya Ayeni (Malvern Hills District Council)Fred Davies and Jessica Woolley (Wychavon District Council)Martyn Wilson and Steve Lambe (Worcestershire County Council)Ruth Clare (Environment Agency)Copyright© Jeremy Benn Associates Limited 2012Carbon Footprint668gA printed copy of the main text in this document will result in a carbon footprint of 668g if 100%post-consumer recycled paper is used and 850g if primary-source paper is used. These figuresassume the report is printed in black and white on A4 paper and in duplex.JBA is aiming to achieve carbon neutrality.2012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.dociv
Page 1 and 2: 2012s5947 South WorcestershireStrat
Page 6: Executive SummaryThis report is an
Page 10 and 11: Table 7-16: SWDP8/1 (Broomhall Comm
Page 12 and 13: NRDOrdinary WatercourseOS NGRPFRAPi
Page 14 and 15: identify the level of detail requir
Page 16 and 17: 1.4 Approach1.4.1 General Assessmen
Page 18 and 19: 1.5.3 Severn Trent WaterSevern Tren
Page 20 and 21: 2 The Planning Framework and Flood
Page 22 and 23: Additionally Provision 110 of the A
Page 24 and 25: Risk ManagementAuthority (RMA)Distr
Page 26 and 27: 3 Understanding Flood Risk in South
Page 28 and 29: earth embankment, flood wall and fl
Page 30 and 31: 4 How Flood Risk is Assessed4.1 Def
Page 32 and 33: Zone 1Zone 2Zone 3aZone 3bTable 4-1
Page 34 and 35: etween the proposed level of commit
Page 36 and 37: 5 Mapping and risk based approach5.
Page 38 and 39: The ability to manage flood risk fo
Page 40 and 41: Stage 3 - Applying the Sequential T
Page 42 and 43: 6 Overview of future developmentThe
Page 44 and 45: A proposed 340 dwelling have been a
Page 46 and 47: Figure 6-5: Proposed Pershore Alloc
Page 48 and 49: 6.3 Windfall sitesWindfall is unall
Page 50 and 51: 7 Summary assessment of SWDP develo
Page 52 and 53: SUDS TypeSource ControlsTable 7-2:
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7.4 Summary tables and mapsTable 7-
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SUDS and the development site:SUDS
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Sources of Flood Risk:Primary flood
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Table 7-5: LP1 (Ivy Lane)OS NGR: SP
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Table 7-7: 2012SC (Stonebridge Cros
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emergence. Further assessment of gr
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Table 7-10: SWDP6/NEWJ (Land North
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Estimated Attenuation Storage Volum
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Table 7-12: SWDP6/6 (Old Northwick
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Soil TypeGreenfield Runoff Rate (l/
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Sources of Flood Risk:Surface water
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Table 7-14: SWDP6/21 (Former Hallow
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SUDS and the development siteSUDS T
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Table 7-16: SWDP8/1 (Broomhall Comm
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Surface water presents a risk to th
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Table 7-17: SWDP8/2 (Temple Laugher
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A44 Bromyard road, the A4440 Grove
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Table 7-18: SWDP8/3 (Land to the re
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impermeable surfaces may result in
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Table 7-19: SWDP9/2 (Land east of S
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impermeable surfaces may result in
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Table 7-20: SWDP9/3 (Boxing Club)OS
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Table 7-22: SWDP9/7 (Canal Basin Pr
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Soil TypeGreenfield Runoff Rate (l/
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Sources of Flood Risk:The main sour
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Table 7-24: SWDP13/4 (Former playin
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Surface Water Drainage:As an indica
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Table 7-25: SWDP13/5 (Former Recrea
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Table 7-26: SWDP13/9 (Land off Mayf
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Greenfield Runoff Rate (l/s/ha)Esti
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eceiving watercourse to ensure flow
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Table 7-29: SWDP18/6 Land rear of t
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New or re-development should adopt
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Table 7-32: SWDP23/26 (Land between
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Table 7-34: SWDP24/8 (Site behind H
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Table 7-36: SWDP24/11 (Site behind
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overtopping of an unnamed tributary
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Table 7-37: SWDP24/13 (Land east of
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Table 7-39: SWDP25/9 (Land at Park
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access roads to the site are at ris
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Table 7-40: SWDP/VPx (Vale Park ext
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8 FRA requirements for developers8.
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Figure 8-1: Rationale for flood res
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Local planning bodies should:Promot
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Temporary BarriersTemporary barrier
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flood risk. Development locations s
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9 Recommended policy for management
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10 Outcomes10.1 Summary of work und
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Appendices2012s5947 S Worcestershir
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AFlood Zone mapping2012s5947 S Worc
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BClimate change mapping2012s5947 S
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CHazard mapping2012s5947 S Worceste
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DSurface water flood risk mapping20
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D.2 200 years2012s5947 S Worcesters
Page 206 and 207:
EFloodplain policy mapping2012s5947
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FSummary of risk to all proposed al
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GProperty and critical infrastructu
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Number of environmental sites at ri
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HConsultation and communication2012
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Offices atAtherstoneDoncasterEdinbu
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