flood risk maps - gov.uk · unclassified publication catalogue code: lit 8957 special protection...

UNCLASSIFIED

Publication Catalogue Code: LIT 8957

Flood Risk Maps Risk of Flooding from Reservoirs - Anglian River Basin District

Why have we produced these maps – what can they be used for?

The Flood Risk Regulations require the Environment Agency to publish Flood Risk Maps by December 2013 and review them every six years. A series of Flood Risk Maps have been produced reflecting the different sources of flooding in each River Basin District. These will be used by the Environment Agency to inform the production of Flood Risk Management Plans.

What do the Risk Maps show?

The Risk of Flooding from Reservoirs Maps show the maximum extent of flooding in the unlikely event that a reservoir should fail together with our National Receptor Dataset (NRD). There are three maps showing what is at risk of flooding (Risk to People, Risk to Economic Activity and Risk to Natural and Historic Environment). We have also tabulated the receptors at risk for each Management Catchment and the total for the River Basin District.

This document contains the Risk of Flooding from Reservoirs Maps for the Anglian River Basin District as shown in the figure below:

Risk to People Map

This map shows the number of inhabitants that could be affected by flooding and the potential impact on the services that they use.

People at Risk

The number of people at risk of flooding has been calculated using guidance from the Office for National Statistics General Lifestyle Survey, 2011. The circles on the map (representing the number of people affected by flooding) are located in the middle of the defined built-up area. Therefore they do not pinpoint exact areas at risk of flooding but instead offer a representation of the overall risk of flooding in that built-up area. (Source: OS MasterMap® Address Layer 2 and OS MasterMap® Topography Layer)

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Services

These include schools, hospitals, nursing/care/retirement homes, police stations, fire and ambulance stations, prisons, sewage treatment works and electricity installations. Only those in areas at risk of flooding are shown on the map. (Source: OS MasterMap® Address Layer 2 and OS MasterMap® Topography Layer)

Built-up areas

These represent urban areas and settlements as defined by the Office for National Statistics (ONS). All built-up areas are shown on the map for context - reporting is only provided for the number of people in these built-up areas at risk of flooding, rather than the area of land itself. (Source: Office for National Statistics 2011 Built-Up Areas)

Risk to Economic Activity Map

This map shows the type of economic activity in the area potentially affected by flooding. All economic activity is shown on the map - viewed together with the flooding information, it shows what is at risk.

Airports

All principal airports serving the United Kingdom, Europe and beyond are displayed on the map. (Source: Ordnance Survey Strategi®)

Railways

Main railway lines are displayed on the map. (Source: Ordnance Survey Meridian™2)

Roads

Motorways, primary and trunk routes are displayed on the map, as classified by the Highways Agency. These are reported in the tables as a single class. (Source: OS MasterMap® Integrated Transport Network™(ITN))

Non-Residential Properties

Property points have been classified according to their function and all residential properties excluded. (Source: OS MasterMap® Address Layer 2 and OS MasterMap® Topography Layer)

Agricultural Land Classification

The Agricultural Land Classification (ALC) of England and Wales is a method for assessing the quality of farmland. Agricultural land is classified into five grades. Grade one is best quality and grade five is poorest quality. The map shows the best and most versatile land - Grades 1, 2 and 3. (Source: Natural England)

Risk to Natural and Historic Environment Map

This map shows protected areas that may be affected in the event of flooding, and other sites where the risk of pollution may be increased in the event of flooding. To keep the map as clear as possible, only internationally designated environmental sites have been displayed on the map. Other designations have been included in the tables.

Special Areas of Conservation (SACs)

Land designated under Directive 92/43/EEC on the Conservation of Natural Habitats and of Wild Fauna and Flora. All SACs are shown on the map regardless of risk. (Source: Natural England)

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Special Protection Areas (SPAs)

Land classified under directive 79/409 on the Conservation of Wild Birds. All SPAs are shown on the map regardless of risk. (Source: Natural England)

Ramsar Sites

Land listed as a Wetland of International Importance under the Convention on Wetlands of International Importance especially as Waterfowl Habitat (the Ramsar Convention) 1971. All Ramsar Sites are shown on the map regardless of risk. (Source: Natural England)

World Heritage Sites

World Heritage Sites are defined in World Heritage Convention as 'places of outstanding universal value from the point of view of art, history, science or natural beauty'. A Heritage World Convention was drawn up and adopted by UNESCO in 1972 to identify cultural and natural properties throughout the world whose protection would be of concern to the international community. All World Heritage Sites are shown on the map regardless of risk. (Source: English Heritage)

Bathing Waters

Bathing waters are shown on the map where they may be adversely affected by heavy rainfall and are within 50m of surface water flood risk. (Source: Environment Agency)

Environmental Permitting Regulations (EPR) Installations EPR installations range from refineries to breweries and from intensive pig farms to cement works. Each installation has a permit to limit emissions of pollutants to air, water or land. Only active EPR installations within 50m of surface water flood risk have been included on the map. (Source: Environment Agency Pollution Inventory)

Sites of Special Scientific Interest (SSSIs)

Land notified as an SSSI under the Wildlife and Countryside Act (1981), as amended. (Source: Natural England)

Parks and Gardens

The Register of Parks and Gardens of Special Historic Interest serves to ensure that the features and qualities which make these landscapes of national importance can be safeguarded. Inclusion of a historic park or garden on the Register in itself does not bring additional statutory controls, but the Register is recognised as a 'material consideration' in the planning process. (Source: English Heritage)

Scheduled Ancient Monuments

Scheduling is a shorthand term used to refer to the legal system for protecting and conserving nationally important archaeological sites in the United Kingdom. Sites identified for scheduling are designated by the Secretary of State as 'scheduled monuments'. Once a site is scheduled, consent must be obtained from the Secretary of State for any works which affect it. (Source: English Heritage)

Listed Buildings

A listed building is a building which has been placed on the Statutory List of Buildings of Special Architectural or Historic Interest. It is a widely used status, applied to around half a million buildings. There are three grades of listed building. (Source: English Heritage)

Licensed Abstractions

An abstraction licence allocates an exclusive right to take a certain quantity of water from a source of supply (inland water such as rivers or streams or an underground source). An abstraction licence does not guarantee the quality of the water or that the amount authorised for abstraction will always be available. (Source: Environment Agency National Abstraction Licensing Database (NALD))

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Reporting Boundaries used on maps and for tabular statistics

The figures quoted for the River Basin District may not be the same as the total of all the Management Catchments. This is because River Basin Districts also include adjacent transitional and coastal waters.

River Basin Districts (RBDs)

Under the requirements of the Floods Directive, reporting is at the River Basin District level. There are 11 River Basin Districts that are partly or fully in England and Wales. These River Basin Districts are the same as those used by the Water Framework Directive for the river basin planning process. A river basin is the area of land from which all surface run-off and spring water flows through a sequence of streams, lakes and rivers into the sea at a single river mouth, estuary or delta. It comprises one or more individual catchments. A River Basin District is made up of one or several river basins, together with associated coastal waters.

Management Catchments

A catchment is an area with several, often interconnected, water bodies (rivers, lakes, groundwater and coastal waters). Many of the problems facing our water environments are best understood and tackled at a catchment level. There are 101 Management Catchments across the 11 River Basin Districts.

Further Information

Visit our web pages to check your flood risk and for information on how to prepare for flooding.

What other maps have been produced?

A series of Flood Risk Maps have been produced for different sources of flooding in each River Basin District. The Flood Risk Regulations require that we produce surface water flood risk maps for Flood Risk Areas. Not every River Basin District includes a Flood Risk Area.

River Basin Districts Rivers & sea Reservoirs Surface water

1 Anglian 2 Dee 3 Humber 4 North West 5 Northumbria 6 Severn 7 Solway Tweed 8 South East 9 South West 10 Thames 11 Western Wales

http://maps.environment-agency.gov.uk/wiyby/wiybyController?ep=maptopics&lang=_e

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Copyright Statements

© Environment Agency copyright and/or database right 2013. All rights reserved.

These maps are reproduced from Ordnance Survey material with the permission of Ordnance Survey on behalf of the Controller of Her Majesty's Stationery Office © Crown copyright. Unauthorised reproduction infringes Crown copyright and may lead to prosecution or civil proceedings. Environment Agency, 100026380, 2013.

Copyright resides with the data suppliers and the maps must not be reproduced without their permission:

River Basin Districts and Management Catchment

Some features of these maps are based on digital spatial data licensed from the Centre of Ecology and Hydrology, © CEH.

Agricultural Land Classification, Special Areas of Conservation, Special Protection Areas and Ramsar

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2013

World Heritage Sites

World Heritage Sites are provided solely to indicate the location of the designated area. Title, copyright and all other propriety rights remain vested in English Heritage.

Witham

Nene

Combined Essex

WellandBroadland Rivers

East Suffolk

Upper and Bedford Ouse

Cam and Ely Ouse (including South Level)

North West Norfolk

North Norfolk

Old Bedford including the Middle Level

Risk to People

ReservoirsFlood Risk Map

AnglianRiver Basin District

Reporting BoundariesRiver Basin DistrictRiver Basin Districts (Neighbouring)Management Catchment

© Environment Agency copyright and/or database right 2013. All rights reserved.This map is reproduced from Ordnance Survey material with the permission of Ordnance Survey on behalf of the Controller of Her Majesty's Stationery Office © Crown copyright.

Unauthorised reproduction infringes Crown copyright and may lead to prosecution or civil proceedings. Environment Agency, 100026380, 2013.Copyright resides with the data suppliers (see coversheet for details) and the map must not be reproduced without their permission.

Some information is a snapshot of information that is being maintained or continually updated by the originating organisation.Contact Us: National Customer Contact Centre, PO Box 54, Rotherham, S60 1BY. Telephone: 03708 506 506 (Mon to Fri, 8am to 6pm). Email address: [email protected]

Flood Risk SourceReservoirs

Maximum extent of flooding

People at Risk0 - 10001001 - 50005001 +

Services at RiskBuilt-up Areas

0 10 20 30 40Kilometres

Tables showing what is at risk of flooding from reservoirs in the Anglian River Basin District:

Number of people Number of peoplein defined area in defined area

at riskRiver Basin District

Anglian 5,968,930 170,135

Broadland Rivers 751,436 360Cam and Ely Ouse (including South Level) 630,597 3,995Combined Essex 1,367,279 26,040East Suffolk 372,557 371Nene 806,057 22,971North Norfolk 60,426 21North West Norfolk 148,583 1,330Old Bedford including the Middle Level 103,854 3,760Upper and Bedford Ouse 938,717 40,655Welland 265,872 46,570Witham 523,134 24,031

Number of sites Number of sitesin defined area in defined area

at risk

Anglian 13,920 671

Broadland Rivers 1,761 11Cam and Ely Ouse (including South Level) 1,908 48Combined Essex 2,618 79East Suffolk 778 15Nene 1,622 97North Norfolk 204 3North West Norfolk 378 7Old Bedford including the Middle Level 321 65Upper and Bedford Ouse 2,149 152Welland 810 138Witham 1,367 56

River Basin District

Management Catchment

Defined Area

People

Services

Defined Area


Witham

Nene

Combined Essex


East Suffolk



North West Norfolk

North Norfolk


Risk toEconomic Activity






Economic ActivityAirportsMain Line RailwaysMotorwayOther Primary / Trunk RoadsNon-residential Properties

Agricultural Land ClassificationGrade 1Grade 2Grade 3






Anglian 860,034 32,781 Anglian 2 0

Broadland Rivers 123,946 135 Broadland Rivers 1 0

Cam and Ely Ouse (including South Level) 111,735 3,514 Cam and Ely Ouse (including South Level) 0 0

Combined Essex 160,734 3,846 Combined Essex 1 0

East Suffolk 57,786 199 East Suffolk 0 0

Nene 93,527 5,446 Nene 0 0

North Norfolk 12,316 61 North Norfolk 0 0

North West Norfolk 26,111 950 North West Norfolk 0 0

Old Bedford including the Middle Level 20,530 3,003 Old Bedford including the Middle Level 0 0

Upper and Bedford Ouse 115,568 5,475 Upper and Bedford Ouse 0 0

Welland 42,528 8,091 Welland 0 0

Witham 95,035 2,043 Witham 0 0

Anglian 4,503 218 Anglian 1,567 119

Broadland Rivers 442 0 Broadland Rivers 182 1

Cam and Ely Ouse (including South Level) 741 14 Cam and Ely Ouse (including South Level) 256 22

Combined Essex 486 27 Combined Essex 242 8

East Suffolk 217 1 East Suffolk 128 1

Nene 742 68 Nene 122 13

North Norfolk 36 0 North Norfolk 13 0

North West Norfolk 146 4 North West Norfolk 26 4

Old Bedford including the Middle Level 85 15 Old Bedford including the Middle Level 56 10

Upper and Bedford Ouse 819 29 Upper and Bedford Ouse 183 7

Welland 293 48 Welland 137 45

Witham 494 10 Witham 223 9

Anglian 2,156,384 141,729

Broadland Rivers 275,321 1,118

Cam and Ely Ouse (including South Level) 282,148 24,994

Combined Essex 300,078 5,963

East Suffolk 119,696 1,201

Nene 208,215 22,588

North Norfolk 39,754 412

North West Norfolk 84,713 6,484

Old Bedford including the Middle Level 77,254 28,927

Upper and Bedford Ouse 252,926 10,353

Welland 151,314 31,503

Witham 361,685 7,905

Non Residential Properties Airports

Roads Railways

Agricultural Land (Grade 1, 2 & 3)

Defined Area



Leng

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Defined Area

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Area

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Defined Area Defined Area

Num

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Witham

Nene

Combined Essex


East Suffolk



North West Norfolk

North Norfolk


Risk to theNatural and Historic

Environment






Internationally Designated SitesBathing Waters that may beadversely affected by heavy rainfalland are within 50m of flood riskEPR (Environmental PermittingRegulations) Installations within 50mof Risk

Special Areas of ConservationSpecial Protection AreasRAMSAR SitesWorld Heritage Sites






Anglian 6 0 Anglian 644 44

Broadland Rivers 0 0 Broadland Rivers 129 0


Combined Essex 1 0 Combined Essex 58 1

East Suffolk 1 0 East Suffolk 57 1

Nene 0 0 Nene 62 5

North Norfolk 0 0 North Norfolk 8 0

North West Norfolk 0 0 North West Norfolk 16 0



Welland 0 0 Welland 19 9

Witham 0 0 Witham 110 2

Anglian 152,647 6,156 Anglian 159,766 8,193

Broadland Rivers 6,782 94 Broadland Rivers 6,352 10 Cam and Ely Ouse (including South Level) 8,456 449 Cam and Ely Ouse (including South Level) 39,588 1,379 Combined Essex 3,840 740 Combined Essex 8,315 1,141 East Suffolk 3,011 70 East Suffolk 7,414 192 Nene 616 1 Nene 1,864 20 North Norfolk 2,316 8 North Norfolk 3,093 162 North West Norfolk 2,049 21 North West Norfolk 1,732 0 Old Bedford including the Middle Level 541 187 Old Bedford including the Middle Level 2,299 376 Upper and Bedford Ouse 92 92 Upper and Bedford Ouse 0 0 Welland 966 2 Welland 2,498 627 Witham 2,877 2 Witham 2,801 2

Bathing Waters that may be

adversely affected by heavy rainfall

Environmental Permitting

Regulations (EPR) Installations

Defined Area

Num

ber o

f EPR

Inst

alla

tions

in d

efin

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rea

Defined Area

Area

of S

AC (h

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Defined Area


Num

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Inst

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in d

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with

in 5

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Area

of S

PA (h

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Area

of S

AC (h

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in d

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Special Areas of Conservation (SAC)

Special Protection Areas (SPA)

River Basin District River Basin District

Management CatchmentManagement Catchment

Defined Area

Num

ber o

f bat

hing

wat

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tes

in d

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rea

Num

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wat

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with

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Anglian 117,324 6,780 Anglian 0 0

Broadland Rivers 6,434 10 Broadland Rivers 0 0


Combined Essex 8,309 1,136 Combined Essex 0 0

East Suffolk 3,693 99 East Suffolk 0 0

Nene 1,864 20 Nene 0 0

North Norfolk 3,093 162 North Norfolk 0 0

North West Norfolk 2,072 21 North West Norfolk 0 0

Old Bedford including the Middle Level 2,527 394 Old Bedford including the Middle Level 0 0


Welland 2,276 626 Welland 0 0

Witham 2,801 2 Witham 0 0

Anglian 184,727 11,090 Anglian 27,277 678

Broadland Rivers 8,876 106 Broadland Rivers 4,191 65

Cam and Ely Ouse (including South Level) 43,290 1,642 Cam and Ely Ouse (including South Level) 3,794 129

Combined Essex 11,337 1,363 Combined Essex 1,683 30

East Suffolk 9,178 225 East Suffolk 1,318 15

Nene 5,423 1,478 Nene 4,054 103

North Norfolk 3,653 162 North Norfolk 1,420 0

North West Norfolk 2,688 27 North West Norfolk 1,370 0

Old Bedford including the Middle Level 3,111 394 Old Bedford including the Middle Level 25 7

Upper and Bedford Ouse 3,899 348 Upper and Bedford Ouse 4,622 180

Welland 4,333 802 Welland 2,688 89

Witham 4,559 9 Witham 2,109 61

RamsarWorld Heritage

Sites (WHS)

Sites of Special Scientific Interest

(SSSI)Parks and Gardens

Management Catchment Management Catchment

Area

of W

HS (h

ecta

res)

in d

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rea

at ri

sk

Defined Area

Defined Area

Area

of p

arks

and

gar

dens

(hec

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s)in

def

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are

a


Area

of R

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r (he

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in d

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rea

Area

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r (he

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in d

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Defined Area

Area

of W

HS (h

ecta

res)

in d

efin

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rea

Area

of p

arks

and

gar

dens

(hec

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def

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are

aat

risk

Defined Area

Area

of S

SSI (

hect

ares

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def

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are

a

Area

of S

SSI (

hect

ares

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are

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Anglian 6,918 623 Anglian 63,247 2,176

Broadland Rivers 467 0 Broadland Rivers 8,777 17

Cam and Ely Ouse (including South Level) 1,294 82 Cam and Ely Ouse (including South Level) 9,396 83

Combined Essex 757 11 Combined Essex 13,666 362

East Suffolk 239 2 East Suffolk 4,970 12

Nene 947 134 Nene 5,534 175

North Norfolk 86 0 North Norfolk 1,409 6

North West Norfolk 372 1 North West Norfolk 1,161 10


Upper and Bedford Ouse 1,093 78 Upper and Bedford Ouse 9,083 694

Welland 607 295 Welland 4,216 737

Witham 898 12 Witham 4,320 67

Anglian 16,704 6,543

Broadland Rivers 1,086 26

Cam and Ely Ouse (including South Level) 5,942 2,844

Combined Essex 1,438 206

East Suffolk 626 62

Nene 260 149

North Norfolk 185 21

North West Norfolk 331 35

Old Bedford including the Middle Level 4,203 2,498

Upper and Bedford Ouse 544 176

Welland 497 333

Witham 1,581 192

Licenced Abstractions



Defined Area

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of s

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Defined Area

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Scheduled Ancient Monuments

Listed Buildings

Defined Area

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flood risk maps - gov.uk · unclassified publication catalogue code: lit 8957 special protection...

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