Strategic Flood Risk Assessment - South Worcestershire ...

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Table 7-16: SWDP8/1 (Broomhall Community and Norton Barrack)OS NGR: SO 859912 Area: 247ha Brown/Greenfield: Brownfield /greenfieldFlood Zone Coverage: FZ3a: 2% FZ3b: 3% FZ2: 5% FZ1: 90%Exception Test required? Yes, for Essential Infrastructure in FZ3b, for More Vulnerabledevelopment in FZ3a and for Highly Vulnerable development in FZ2.Highly Vulnerable infrastructure should not be permitted within FZ3a. More Vulnerable andLess Vulnerable Infrastructure should not be permitted within FZ3b.Requirements for passing the Exception Test:To pass Part ‘b’ of the Exception Test, a FRA should demonstrate that: thedevelopment will be safe, will avoid increasing flood risk elsewhere, and will reduceflood risk overall.Preference should be given to water compatible and less vulnerable development atthis site. Development should be located away from the Hatfield Brook in the eastof the site, the unnamed tributary of the Hatfield Brook to the west of the site, RiverSevern to the west boundary of the site and Flood Zone 2 and 3, by usingsequential design to locate more vulnerable development towards higher ground,through building design, and by meeting drainage requirements.New development being located outside of Flood Zone 2 and 3 needs to ensure thatno increase in flood risk occurs. Areas within Flood Zone 2 should be kept as openspace, with the potential for a buffer.Safe access and egress would need to be demonstrated.Consultation with the Local Authority and the Environment Agency should beundertaken at an early stage.2012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.doc 86
Sources of Flood Risk:Primary flood risk to the site is from overtopping of the banks of the Hatfield Brookto the east of the site, the unnamed tributary of the Hatfield Brook to the west of thesite and the River Severn to the west boundary of the site. A minority of the sitefalls within Flood Zone 3b and the Blue Zone on the Policy Maps. The Taylors Laneand Norton Road, some of the main access roads within the site area are at riskfrom fluvial flooding.This site is shown to be partially within five of the County Council’s historic floodhotspots.2012s5947 S Worcestershire Level 2 SFRA Update FINAL Report v1.0.doc 87
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2012s5947 South WorcestershireStrat
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ContractThis Level 2 Strategic Floo
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Executive SummaryThis report is an
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Table 7-16: SWDP8/1 (Broomhall Comm
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NRDOrdinary WatercourseOS NGRPFRAPi
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identify the level of detail requir
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1.4 Approach1.4.1 General Assessmen
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1.5.3 Severn Trent WaterSevern Tren
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2 The Planning Framework and Flood
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Additionally Provision 110 of the A
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Risk ManagementAuthority (RMA)Distr
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3 Understanding Flood Risk in South
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earth embankment, flood wall and fl
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4 How Flood Risk is Assessed4.1 Def
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Zone 1Zone 2Zone 3aZone 3bTable 4-1
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etween the proposed level of commit
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5 Mapping and risk based approach5.
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The ability to manage flood risk fo
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Stage 3 - Applying the Sequential T
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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:
Page 54 and 55: 7.4 Summary tables and mapsTable 7-
Page 56 and 57: SUDS and the development site:SUDS
Page 58 and 59: Sources of Flood Risk:Primary flood
Page 60 and 61: Table 7-5: LP1 (Ivy Lane)OS NGR: SP
Page 66 and 67: Table 7-7: 2012SC (Stonebridge Cros
Page 72 and 73: emergence. Further assessment of gr
Page 76 and 77: Table 7-10: SWDP6/NEWJ (Land North
Page 78 and 79: Estimated Attenuation Storage Volum
Page 82 and 83: Table 7-12: SWDP6/6 (Old Northwick
Page 84 and 85: Soil TypeGreenfield Runoff Rate (l/
Page 86 and 87: Sources of Flood Risk:Surface water
Page 88 and 89: Table 7-14: SWDP6/21 (Former Hallow
Page 90 and 91: SUDS and the development siteSUDS T
Page 96 and 97: Surface water presents a risk to th
Page 98 and 99: Table 7-17: SWDP8/2 (Temple Laugher
Page 100 and 101: A44 Bromyard road, the A4440 Grove
Page 102 and 103: Table 7-18: SWDP8/3 (Land to the re
Page 104 and 105: impermeable surfaces may result in
Page 106 and 107: Table 7-19: SWDP9/2 (Land east of S
Page 108 and 109: impermeable surfaces may result in
Page 110 and 111: Table 7-20: SWDP9/3 (Boxing Club)OS
Page 116 and 117: Table 7-22: SWDP9/7 (Canal Basin Pr
Page 118 and 119: Soil TypeGreenfield Runoff Rate (l/
Page 120 and 121: Sources of Flood Risk:The main sour
Page 122 and 123: Table 7-24: SWDP13/4 (Former playin
Page 124 and 125: Surface Water Drainage:As an indica
Page 126 and 127: Table 7-25: SWDP13/5 (Former Recrea
Page 128 and 129: Surface Water Drainage:As an indica
Page 130 and 131: Table 7-26: SWDP13/9 (Land off Mayf
Page 132 and 133: Greenfield Runoff Rate (l/s/ha)Esti
Page 136 and 137: eceiving watercourse to ensure flow
Page 138 and 139: Sources of Flood Risk:The main sour
Page 140 and 141: Table 7-29: SWDP18/6 Land rear of t
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Sources of Flood Risk:Primary flood
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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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Estimated Attenuation Storage Volum
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Sources of Flood Risk:The main sour
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Table 7-34: SWDP24/8 (Site behind H
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SUDS and the development site:SUDS
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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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Estimated Attenuation Storage Volum
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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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Surface Water Drainage:As an indica
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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
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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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