Thames River Basin District Flood Risk Management Plan PART C · Flood risk management plans (FRMP) have been divided into 4 sections to help readers identify and access information

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Thames River Basin District

Flood Risk Management Plan

2015-2021

PART C – appendices

March 2016

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Published March 2016

Published by:

Environment Agency Horizon house, Deanery Road, Bristol BS1 5AH Email: [email protected] www.gov.uk/environment-agency

© Environment Agency 2016

All rights reserved. This document may be reproduced with prior permission of the Environment Agency.

Further copies of this report are available from our publications catalogue: www.gov.uk/government/publications

or our National Customer Contact Centre: T: 03708 506506

Email: [email protected].

http://www.gov.uk/environment-agencyhttp://www.gov.uk/government/publicationsmailto:[email protected]

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Contents The layout of this document ........................................................................................................ 5

Appendix 1: Sources of objectives and measures for the FRMP .............................................. 6

Appendix 2: Measures tables ....................................................................................................... 7

Table 1: The Thames river basin district measures ...................................................... 7

Table 2: The London flood risk area measures .......................................................... 14

London Borough of Barking and Dagenham ....................................................................................................... 14

London Borough of Barnet .................................................................................................................................... 15

London Borough of Bexley ................................................................................................................................... 17

London Borough of Brent ...................................................................................................................................... 23

London Borough of Bromley ................................................................................................................................. 25

London Borough of Camden ................................................................................................................................. 28

City of London Corporation ................................................................................................................................... 29

London Borough of Croydon ................................................................................................................................ 31

London Borough of Ealing .................................................................................................................................... 43

London Borough of Enfield ................................................................................................................................... 47

London Borough of Greenwich ............................................................................................................................. 51

London Borough of Hackney ................................................................................................................................ 62

London Borough of Hammersmith and Fulham .................................................................................................. 71

London Borough of Haringey ................................................................................................................................ 74

London Borough of Harrow ................................................................................................................................... 77

London Borough of Havering ................................................................................................................................ 82

London Borough of Hillingdon.............................................................................................................................. 84

London Borough of Hounslow .............................................................................................................................. 85

London Borough of Islington ................................................................................................................................ 87

Royal Borough of Kensington and Chelsea ......................................................................................................... 89

Royal Borough of Kingston upon Thames ........................................................................................................... 99

London Borough of Lambeth .............................................................................................................................. 108

London Borough of Lewisham ............................................................................................................................ 110

London Borough of Merton ................................................................................................................................. 112

London Borough of Newham .............................................................................................................................. 121

London Borough of Redbridge ........................................................................................................................... 123

London Borough of Richmond upon Thames ................................................................................................... 126

London Borough of Southwark ........................................................................................................................... 138

Surrey County Council ......................................................................................................................................... 142

London Borough of Sutton .................................................................................................................................. 142

London Borough of Tower Hamlets .................................................................................................................... 152

London Borough of Waltham Forest .................................................................................................................. 155

London Borough of Wandsworth ........................................................................................................................ 160

Westminster City Council .................................................................................................................................... 168

Table 3: The Medway flood risk area measures ........................................................ 170

Table 4: The Cherwell and Ray catchment measures ............................................... 172

Table 5: The Colne catchment measures .................................................................. 184

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Table 6: The Cotswolds catchment measures .......................................................... 196

Table 7: The Darent and Cray catchment measures ................................................. 199

Table 8: The Gloucestershire and the Vale catchment measures ............................ 206

Table 9: The Kennet and tributaries catchment measures ....................................... 213

Table 10: The Loddon and tributaries catchment measures .................................... 218

Table 11: The London catchment measures ............................................................. 224

Table 12: The Maidenhead to Sunbury catchment measures .................................. 253

Table 13: The Medway catchment measures ............................................................. 258

Table 14: The Mole catchment measures .................................................................. 269

Table 15: The North Kent catchment measures ........................................................ 276

Table 16: The Roding, Beam and Ingrebourne catchment measures ...................... 284

Table 17: The South Essex catchment measures ..................................................... 294

Table 18: The Thame and South Chilterns catchment measures ............................ 310

Table 19: The Upper Lee catchment measures ......................................................... 316

Table 20: The Wey and tributaries catchment measures.......................................... 323

Table 21: The tidal Thames strategic area measures ............................................... 327

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The layout of this document Flood risk management plans (FRMP) have been divided into 4 sections to help readers identify and access information relevant to them. This is Part C, the appendices. The plan is divided into 4 parts:

Name Audience

Summary Document For those who a high level overview of the plan

Part A: Background and river basin district (RBD) wide information

For those who need some legislative background and RBD wide, high level information

Part B: Catchment summaries For those who want the detail of the sub-areas and flooding statistics. This section includes the catchments based on Water Framework Directive (WFD) management catchments, flood risk areas (identified through the preliminary flood risk assessment) and other strategic areas across the RBD.

Part C: Appendices For those who would like to see the detailed programme of work for individual communities.

The other parts of the flood risk management plan are located on gov.uk (https://www.gov.uk/government/publications/thames-river-basin-district-flood-risk-management-plan)

https://www.gov.uk/government/publications/thames-river-basin-district-flood-risk-management-plan

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Appendix 1: Sources of objectives and measures for the FRMP Plan or Strategy Purpose and scope of

plan or strategy Drivers Lead authority

The national flood and coastal erosion risk management strategy for England

The approach to managing flood and coastal erosion risk in England.

Statutory requirement under the Flood and Water Management Act 2010.

Environment Agency.

Flood risk management plans (FRMPs)

To manage the risk of flooding from rivers, the sea, reservoirs, surface water and groundwater.

These may be separate plans for flood risk areas that need to be co-ordinated across each river basin district in the whole of England.

Required under the European Floods Directive; implemented in England by the Flood Risk Regulations 2009.

FRMPs for this first cycle of planning must be published by December 2015.

Lead Local Flood Authorities for flooding from surface water, groundwater and ordinary watercourses.

Environment Agency for flooding from main rivers, the sea and reservoirs.

Local flood risk management strategy

To manage local flood risk in each Lead Local Flood Authority across the whole of England. These also include objectives and measures for the management of local flood risk (i.e. from surface water, groundwater and ordinary watercourses).

Statutory requirement under the Flood and Water Management Act 2010.

No statutory deadline for production.

All Lead Local Flood Authorities must prepare a Local Flood Risk Management Strategy.

Surface water management plans (SWMPs)

To establish preferred approach to managing surface water flooding.

Voluntary plans for co-ordinated measures to manage surface water flooding.

Likely to be Lead Local Flood Authorities, in partnership with others.

Catchment flood management plans (CFMPs)

Current and future inland flood risk management across all catchments.

These plans set out preferred policies for inland flooding in England and Wales.

Voluntary plans.

Published in 2009-10.

Environment Agency

Shoreline management plans (SMPs)

Set the strategic direction for how the coast is to be managed over the next 100 years.

Non-statutory, high level planning documents

District or unitary councils in partnership with others.

https://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-englandhttps://www.gov.uk/government/collections/flood-risk-management-plans-frmpshttps://www.gov.uk/government/collections/flood-risk-management-plans-frmpshttp://www.local.gov.uk/local-flood-risk-management/-/journal_content/56/10180/3618366/ARTICLEhttp://www.local.gov.uk/local-flood-risk-management/-/journal_content/56/10180/3618366/ARTICLEhttp://www.local.gov.uk/local-flood-risk-management/-/journal_content/56/10180/3618366/ARTICLEhttps://www.gov.uk/government/publications/surface-water-management-plan-technical-guidancehttps://www.gov.uk/government/publications/surface-water-management-plan-technical-guidancehttps://www.gov.uk/government/collections/catchment-flood-management-planshttps://www.gov.uk/government/collections/catchment-flood-management-planshttps://www.gov.uk/government/publications/shoreline-management-plans-smps/shoreline-management-plans-smpshttps://www.gov.uk/government/publications/shoreline-management-plans-smps/shoreline-management-plans-smps

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Appendix 2: Measures tables Table 1: The Thames river basin district measures

Measure ID

Place Measure name

Measure details Source of flood risk or coastal erosion Category of objective

Category of measure

Timing Priority Measure owner

Statutory or voluntary measure

Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

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ese

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Su

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wa

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Prevention, protection, preparedness etc

FRMP Planning Cycles e.g. 2015 - 2021; 2021 - 2027 etc

Critical, Very High, High, Moderate Low

Measure owner, plan owner and support organisations

Statutory or voluntary

Source plan measure originates from

ACT6134 Environment Agency - national flood risk measure

Thames RBD 1 - national planning policy

We will work with the relevant planning authorities at both the strategic and planning application stages to steer development to areas at the lowest risk of flooding. Where possible we will seek to re-establish and enhance natural river corridors through new development, in line with the Water Framework Directive. We shall look for policies included in planning documents for development in areas at risk of flooding to be resilient and for the implementation of sustainable drainage systems (SuDS). Through our consultation role on planning applications we will continue to ensure the location and layout of development does not increase flood risk, and where possible reduces flood risk.

Y N N N N N N N N Y Y Y M2 - Prevention

2015 - 2021 High Environment Agency | Environment Agency

Statutory FRMP

CFMP


Thames RBD 2 - eel and fish passage

We will assess and where necessary, improve, all of our flood risk management structures as part of a prioritised programme to ensure they comply with the Eel Regulations 2009. We will work with partners, who also have flood risk management structures, to assist with compliance.

Y N N N N N N N N N Y N M2 - Prevention


Statutory FRMP

CFMP

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Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

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m R

ive

rs (

ma

in r

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lus o

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ary

wa

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ou

rses)

Flo

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ea

Co

asta

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n

Flo

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Thames RBD 3 - modelling and hydrology

We will carry out a prioritised programme of mapping and modelling to ensure our flood risk information remains up to date and fit for purpose. This will support the development of our capital programme for new assets, refurbishment work to existing assets, flood forecasting and flood incident management work, planning advice to local authorities and general advice to the public.

Y N N N N N N N N Y N N M2 - Prevention


Statutory FRMP

CFMP


Thames RBD 4 - asset maintenance

We will continue our work to maintain existing flood risk management assets in order to sustain the standard of service that they provide into the future.

Y N N Y N N N N N Y N N M2 - Prevention


Statutory FRMP

CFMP

of 360

Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

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rs (

ma

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ary

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Flo

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ea

Co

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Flo

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Thames RBD 5 - asset performance

We will continue to review system asset management plans (SAMPs) regularly with regard to maintenance, funding requirements and asset condition related works. We will utilise data from SAMPs, updated surveys and modelling to develop a more strategic approach to routine management and maintenance of the catchments. We will ensure a robust revenue maintenance programme exists that prioritises flood risk management works across each catchment, which is reflected in the maintenance bid within the relevant SAMPs. We will further develop the SAMPs to include, where possible, opportunities for proposed maintenance works to naturalise watercourses and create habitat through possible external partnership funding.

Y N N Y N N N N N Y N N M2 - Prevention


Statutory FRMP

CFMP


Thames RBD 6 - deliver flood warning service

We will continue to work closely with the Met Office to provide timely and accurate forecasts and warnings of flooding from rivers and the sea to communities at risk

Y N N Y N N N N N Y N Y M4 - Preparedness


Statutory FRMP

CFMP


Thames RBD 7 - work with local resilience forums

We will continue to provide advice and information to local resilience forums to enable them to prepare for, and reduce the impact of, flooding.

N N Y Y N Y Y Y Y Y N Y M4 - Preparedness


Statutory FRMP

CFMP

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Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

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n

Flo

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Su

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Thames RBD 8 - support community resilience

We will continue to provide advice and information to local communities to enable them to prepare for, and reduce the impact of, flooding. We will also engage with communities to improve awareness of riparian owner responsibilities where we may require individuals to take local actions to reduce flood risk.

Y N N Y N Y N N N Y N Y M4 - Preparedness


Statutory FRMP

CFMP


Thames RBD 9 - hydrometry and telemetry

As part of a prioritised programme, we will improve our hydrometry and telemetry assets, which may include creating new assets, or increasing the life or performance of existing ones. This work will support our flood forecasting, warning and response activities.

Y N N Y N N N N N Y N N M4 - Preparedness


Statutory FRMP

CFMP


Thames RBD 10 - flood forecasting and incident management

We will improve our flood forecasting and flood incident management services, focusing on areas for improvement as highlighted by recent flooding events and routine exercises.

Y N N Y N N N N N Y N N M4 - Preparedness


Statutory FRMP

CFMP


Thames RBD 11 - ongoing development of the FRMP

We will continue to work with partners and collect and assess data to further improve our understanding of flood risk to local communities from all sources of flooding. We will utilise this understanding to improve our joint approach to managing flood risk and inform the on-going development of the flood risk management plan into the future.

Y Y N Y N Y Y Y N Y Y Y M4 - Preparedness


Statutory FRMP

CFMP

of 360

Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

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m r

ese

rvo

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Su

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ce

wa

ter

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Gro

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Sew

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En

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Thames RBD 12 - reservoirs

All Environment Agency high risk reservoirs have on-site reservoir plans in place

N N N N N Y N N N Y Y Y M4 - Preparedness

2015 - 2021 Critical Environment Agency | Environment Agency

Statutory FRMP

CFMP


Thames RBD 13 - investigate flood risk reduction measures

Where there is a high flood risk to a community, we will investigate what flood reduction measures are possible and explore partnership funding, to ensure the preferred option can go forward.

Y N N Y N N N N N Y Y Y M3 - Protection


Statutory FRMP

CFMP


Thames RBD 14 - reservoirs

All high-risk reservoirs are regulated in accordance with the Reservoirs Act 1975 this is already monitored through business measures.

N N N N N Y N N N Y Y Y M3 - Protection

2015 - 2021 Critical Environment Agency | Environment Agency

Statutory FRMP

CFMP


Thames RBD 15 - learn from flood events

We will continue to improve and develop our services based on lessons identified following flooding, including feedback from communities and partners

Y N N Y N N N N N Y Y Y M5 - Recovery and Review


Statutory FRMP

CFMP

of 360

Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

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lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

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Su

rfa

ce

wa

ter

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Gro

un

dw

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din

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Thames RBD 16 - climate change allowances

Incorporate climate change allowances into flood risk management works. Impacts from a changing climate will be considered in plans for location-specific works to reduce flood risk from all sources. Additional provision will be made during original design and construction, or may be deferred until later but allowance made in the design of structures (such as larger wall foundation) to facilitate this. Revised guidance for risk management authorities is scheduled for publication early in 2016 and will recommend use of scenarios and allowances by river basin district which are contained in the recently released planning decisions and climate change guidance for local authority planners.

Y Y N Y N Y Y Y Y Y Y Y M3 - Protection


Statutory FRMP

FRMP

of 360

Measure ID

Place Measure name


Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

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Gro

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Thames RBD 17 - climate change - natural processes

Identify where working with natural processes and natural flood management can help to reduce flood and coastal erosion risk and help catchments both adapt and become more resilient to the impacts of climate change. Produce working with natural processes opportunity maps to show where these measures could help: - reduce flood and coastal erosion risk - catchments both adapt and become more resilient to the impacts of climate change - improve water quality and - improve the environment. Woodland planting opportunity maps have already been produced, these identify where planting trees could reduce flood risk and improve water quality. Between 2015-2017, these maps will be expanded to cover a wider range of working with natural processes measures. Planting trees could have an additional role in mitigating against increasing COÂ² emissions - they can also help shade watercourses helping fish species adapt to increasing water temperatures.

Y Y N Y N Y Y Y Y Y Y Y M3 - Protection


Statutory FRMP

FRMP

Total = 17 measures

of 360

Table 2: The London flood risk area measures

London Borough of Barking and Dagenham

Measure ID

Place Measure name Measure details Source of flood risk or coastal erosion Category of objective

Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

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r

plu

s o

rdin

ary

wa

terc

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rses)

Flo

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m th

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Co

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Measure owner , plan owner and support organisations



ACT7154 London Borough of Barking and Dagenham

Barking and Dagenham - surface water management plan actions

Assess surface water management plan (SWMP) and decide which actions need to be taken forward to the local flood risk management strategy

Y Y Y N N N Y Y Y Y N N M2 - Prevention

2015 - 2021 High Barking and Dagenham London Borough | Barking and Dagenham London Borough

Statutory FRMP

SWMP

Total = 1 measure

of 360

London Borough of Barnet

Measure ID

Place Measure name Measure details Source of flood risk or coastal erosion

Category of objective

Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

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m R

ive

rs (

ma

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wa

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Flo

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Flo

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ACT7142 London Borough of Barnet

LBB 2 - reduce flood risk in new development

Use the planning process to ensure that new development does not increase flood risk and enhances flood resilience wherever possible. Encourage use of sustainable drainage systems (SuDS) to reduce surface water discharge to existing surface water drainage network.

Y Y Y N N N Y N N Y N Y M2 - Prevention

2015 - 2021 Moderate Barnet London Borough | Barnet London Borough

Statutory FRMP

Local FRM Strategy


LBB 3 - promote flood resistance and resilience

Promote flood resistance and resilience measures to property owners including the installation of sustainable drainage systems (SuDS)

N N N N N N Y N N Y Y Y M3 - Protection


Statutory FRMP

Local FRM Strategy


LBB 4 - flood risk evaluation

Maintain and update asset register using Flood Station and investigate all flooding incidents and keep records on Flood Station

Y Y Y N N N Y Y N N N Y M5 - Recovery and Review


Statutory FRMP

Local FRM Strategy


LBB 5 - emergency preparedness

To ensure that plans are in place for warning and informing, responding to flooding incidents and dealing with recovery from flooding

Y Y Y N N N Y N N Y Y Y M4 - Preparedness

2015 - 2021 High Barnet London Borough | Barnet London Borough

Statutory FRMP

Local FRM Strategy


LBB 6 - partnership working

Work closely with other risk management authorities and other organisations to manage flood risks within the borough and to adjoining boroughs.

Y Y Y N N Y Y Y Y Y Y Y M4 - Preparedness


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

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lus o

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ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic








LBB 7 - modelling of critical drainage areas

Detailed modelling of critical drainage areas to understand full risks of flooding.

N N N N N N Y N N Y N N M2 - Prevention


Statutory FRMP

Local FRM Strategy


LBB 8 - modelling of Barnet catchment

Liaise with Thames Water to undertake modelling to better understand the risk of flooding from foul and surface water. The model will be integrated with other models previously prepared by Environment Agency.

N N N N N N Y N Y N N Y M2 - Prevention


Statutory FRMP

Local FRM Strategy


LBB 10 - develop, maintain, apply and monitor a strategy for local flood risk management of the area

In progress - flood risk strategy in progress and due to be complete by December 2014.

Y Y N N N N Y N N Y N N M2 - Prevention

2015 - 2021 Low Barnet London Borough | Barnet London Borough

Statutory FRMP

Local FRM Strategy


LBB 11 - prepare flood hazard maps and flood risk maps

In progress - work closely with other flood risk authorities to develop flood hazard and flood risk map.

N N N N N N Y N N Y N N M4 - Preparedness


Statutory FRMP

Local FRM Strategy


LBB 12 - prepare flood risk management plans

In progress - In conjunction with flood risk strategy to be completed by March 2015

Y Y Y N N N Y N N Y N N M4 - Preparedness

2015 - 2021 Low Barnet London Borough | Barnet London Borough

Statutory FRMP

Local FRM Strategy

Total = 10 measures

of 360

London Borough of Bexley

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6867 London Borough of Bexley

BX-Groundwater Risk Map

Borough wide - study as part of 5 borough group to improve and formalise understanding of areas at risk of groundwater flooding within the London Borough of Bexley. Provide local groundwater flood risk map linked to conditions that result in flood risk to particular areas.

N N N N N N N N N N N Y M4 - Preparedness

Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Groundwater monitoring

Borough wide - review of existing groundwater monitoring sites (boreholes) in relation to areas at risk within London Borough of Bexley. Consider locations of additional sites. Review telemetry arrangements at existing and proposed sites.



Statutory FRMP

Local FRM Strategy


BX-Groundwater warning

Borough wide - review the potential for area specific groundwater flood warnings based on improved understanding, risk map and monitoring. Aim would be to establish Flood Warnings Direct style flood warning areas and establish triggers for alert, warning and severe warning categories or similar.



Statutory FRMP

Local FRM Strategy


BX-Culvert Blockage Risk Assessment

Borough wide - review residual risk of culvert blockage throughout non-main river.

N N N N N N N N N Y N N M4 - Preparedness


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic








BX-Borough wide storage and FRM

Borough wide - ensure the incorporation of storage / infiltration or other FRM measures alongside other works where practical.

N N N N N N N N N N Y N M3 - Protection Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Borough wide SuDS

Borough wide - maintain a strategy to ensure SuDs incorporated in new developments and redevelopments by applying national, regional and local planning policies, supported by a borough wide education programme. This is particularly relevant in areas likely to derive the most benefit, such as Crayford and Bexley.

N N N N N N N N N Y N Y M2 - Prevention Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Borough wide runoff management

Borough wide - seek opportunities to intercept roof runoff into gardens and promote the use of green and permeable coverings in gardens. Replace footways with permeable tarmac where practical.

N N N N N N N N N Y N N M2 - Prevention Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy

ACT6879 Blackfen and Lamorbey / Longlands / Sidcup wards

BX-Wyncham Stream Risk Map

Study to improve and formalise understanding of areas at risk of fluvial flooding along the Wyncham Stream (ordinary watercourse).


High Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy

ACT6880 Blackfen and Lamorbey / Longlands / Sidcup Wards

BX-Wyncham Stream Warning and Stream Telemetry

Review existing flood warning arrangements for River Shuttle and Wyncham Stream and options for extending these upstream on Wyncham Stream (ordinary watercourse). Review need for additional telemetry.



Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6881 Blackfen and Lamorbey / Longlands / Sidcup Wards

BX-Wyncham Stream SoP

Look to enhance surface water drainage systems and performance of Wyncham Stream, increasing protection to properties within the catchment. Aim to achieve a target of 1 in 70 year return period protection level.


Statutory FRMP

Local FRM Strategy

ACT6882 Blackfen and Lamorbey Ward

BX-Highway Drainage improvements - Old Farm Av

Review and identify improvements to drainage in Halfway Street and Woodlands Avenue (as part of Wyncham Catchment Study).

N N N N N N N N N Y N N M3 - Protection Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Review potential for FRM in Berwick Crescent

Review potential for FRM measures in Berwick Crescent open space as modelling and flood records identify flooding affects properties and highway in Berwick Crescent and Oaklands Avenue. Identify opportunities for river restoration and remediation of existing flood wall to improve biodiversity and flood storage in Hollyoak Wood Park.

N N N N N N N N N Y N N M3 - Protection Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Review opportunities for Storage in Parish Wood

Review opportunities for storage in Parish Wood and surrounding area.

N N N N N N N N N N N Y M2 - Prevention Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy


BX-Review FSA opportunities Greenwich campus

Review potential of joint opportunities for wetland/storage area at University of Greenwich campus (as part of Wyncham study)


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6886 Longlands Ward

BX-Wyncham Stream FAS / joint policy

Review potential for joint policy with Bromley on upstream management of Wyncham Stream and associated catchment, including opportunities for storage.


Statutory FRMP

Local FRM Strategy

ACT6887 Longlands Ward

BX-Review potential for FSA at King George's Field

Maintain King George's Field and Longlands Recreation Ground as public open space to protect the functional flood storage area they provide during extreme surface water flooding events.


Statutory FRMP

Local FRM Strategy

ACT6888 Sidcup Ward

BX-Sidcup railway embankment

Major problems around the railway embankment and railway underpass. Explore opportunities linked to station access and upstream storage.


Statutory FRMP

Local FRM Strategy

ACT6889 Barnehurst / Crayford Ward

BX-Hall Place - asset mapping pilot

Pilot mapping of assets at Hall Place to include mapping watercourses and asset register.



Statutory FRMP

Local FRM Strategy

ACT6890 Crayford Ward

BX-Crayford Integrated Drainage study/ SuDS

Extend integrated drainage study in Crayford to provide further options assessment / development required to identify the most effective scheme to reduce flood risk within Crayford. Ideally this scheme will increase the level of protection to at least a 70 year return period. The identified scheme will then be implemented.

N N N N N N N N N Y N Y M4 - Preparedness


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6891 Cray Meadows Ward

BX-Joyden's Wood drainage ditches - Maintenance

Keep maintenance of Joyden's Wood drainage ditches under review - these are poorly maintained but results in some flood storage potential. Should maintenance be instigated (either in Bexley or Kent) then review opportunities to introduce 'check-weirs' to hold water back and slow response of catchment to rapid response events. Note Hurst Grid Sub Station downstream of wood.


Statutory FRMP

Local FRM Strategy

ACT6892 St. Mary's Ward

BX-High Street Bexley station SW management

Review surface water flooding issues around Bexley Village, related to lack of permeable ground coverings resulting in excessive demand on formal drainage systems. Identify long list of potential solutions.


Statutory FRMP

Local FRM Strategy

ACT6893 North End Ward

BX-Apperfield Rd/Reddy Rd Drainage improvements

Work with TWUL to ensure drainage is monitored and maintained around Aperfield Road and Manor Road, where significant surface water issues were experienced prior to TWUL maintenance of sewers in February 2010.


Statutory FRMP

Local FRM Strategy

ACT6894 Erith Ward BX-Erith SW overflow management

Look to provide upstream storage capacity to address surface water issues in Riverdale Rd, Church Rd and Pembroke Road.


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6895 Erith Ward BX-Pembroke Road watercourse

Work with TWUL to develop partnership funding scheme to reduce risk of combined surface water flooding and sewer flooding in Pembroke Road and surrounding area.


Statutory FRMP

Local FRM Strategy

ACT6896 Erith Ward BX-Fraser Road SW flood resilience

Address historical surface water flooding in Fraser Road in developer proposals linked to Erith Quarry development.


Statutory FRMP

Local FRM Strategy

ACT6897 Belvedere Ward

BX-Lower Belvedere holistic maintenance

Develop closer partnership working arrangements to secure improved maintenance of the main river / ordinary watercourse network draining upper and lower belvedere.


Statutory FRMP

Local FRM Strategy

ACT6899 Thamesmead East and Lesnes Abbey Wards

BX-Thamesmead ditches and dykes-continuous system

Assist the Environment Agency project of evaluation of the Thamesmead ditch and dyke system including optioneering of improvements or changes in maintenance regime.

N N N N N N N N N N N Y M2 - Prevention Moderate Bexley London Borough | Bexley London Borough

Statutory FRMP

Local FRM Strategy

ACT6900 St Michael's Ward

BX-St Michael's ward - drainage review

Review areas that lack formal drainage to include survey, modelling and options assessment.


Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6901 Brampton Ward

BX-Brampton ward - drainage capacity

Work with TWUL to develop partnership funding scheme to reduce flood risk around Long Lane, Heversham Road, Swanbridge Road and Wenvoe Avenue. Requirement for offline storage, education and encouraging uptake of retrofit SuDS.


Statutory FRMP

Local FRM Strategy

Total = 29 measures

London Borough of Brent

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6208 London Borough of Brent

Partnership working (LLFA)

Continue to work with the Greater London Authority, Environment Agency, Thames Water, Drain London and all adjacent LLFAs

N N Y N N N Y Y Y Y N Y M2 - Prevention 2015 - 2021

High Brent London Borough | Brent London Borough

Statutory FRMP

FRMP


Sustainable development

To work with Planners and other internal and external partners in promoting SuDS and how they will affect flood risk management locally.

N N Y N N N N Y Y Y Y Y M4 - Preparedness

2015 - 2021


Statutory FRMP

FRMP

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic








Develop, maintain, apply and monitor Flood Risk Management Strategy

Prepare Flood Risk Strategy and monitor and review

N N Y N N N Y Y Y Y N Y M3 - Protection 2015 - 2021


Statutory FRMP

Local FRM Strategy


Recording and investigation of flood incidents

Investigate all flooding incidents and record on Flood Station. Liaise with appropriate F R Authorities

N N Y N N N Y Y Y Y N Y M4 - Preparedness

Pre 2015 High Brent London Borough | Brent London Borough

Statutory FRMP

FRMP


Routine Gully and watercourse cleaning

Inspect, clean and monitor gullies, highway drainage and watercourses

N N Y N N N Y N Y Y N Y M2 - Prevention Pre 2015 High Brent London Borough | Brent London Borough

Statutory FRMP

Local FRM Strategy


Funding Continue to identify and apply for funding for relief schemes

N N Y N N N Y Y Y Y N Y M3 - Protection 2015 - 2021


Statutory FRMP

Local FRM Strategy


Modelling in Critical Drainage Area

Detailed sewer modelling of CDA to understand full risk of flooding

N N Y N N N Y Y Y Y N Y M2 - Prevention 2015 - 2021

Moderate Brent London Borough | Brent London Borough

Statutory FRMP

FRMP


Information to local community

Provide and regularly update information on Council's website regarding flooding; resistance, resilience and funding measures

N N Y N N N Y Y Y N N Y M4 - Preparedness

2015 - 2021


Statutory FRMP

FRMP


Duty to maintain asset register

All assets recorded on Flood Station

N N Y N N N Y Y Y Y N N M2 - Prevention 2015 - 2021


Statutory FRMP

FRMP


Flood resistance and resilience

Promote flood resistance and resilience measures to property owners. Rain water harvesting and recycling and installing SuDS.

N N Y N N N Y Y Y Y N N M3 - Protection 2015 - 2021


Statutory FRMP

FRMP


Reduce risk of flooding in new development

Use Planning process to ensure that new development does not increase flood risks. Encourage use of SuDS to reduce discharge to existing watercourses.

N N Y N N N Y Y Y N Y N M2 - Prevention 2015 - 2021


Statutory FRMP

FRMP

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r p

lus o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic








Update Strategic Flood Risk Assessment (SFRA) for L B Brent

To review and update L B Brent SFRA and feed data and outcome to relevant organisations, working with the Planning Team

N N Y N N N Y Y Y N N Y M4 - Preparedness

2015 - 2021

Low Brent London Borough | Brent London Borough

Statutory FRMP

FRMP

Total = 12 measures

London Borough of Bromley

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r

plu

s o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic







ACT6694 London Borough of Bromley

Bromley - Groundwater warning

Review Groundwater provision in local and multi-agency flood plans for Borough. Review the potential to use local GW flood risk maps to identify GW flood warning areas. Work with the Environment Agency to establish trigger levels for alerts. Raise GW flood risk awareness amongst local residents and businesses. Advise on property level protection measures.

N N N N N N N Y N Y N N M4 - Preparedness

2015 - 2021

High Bromley London Borough | Bromley London Borough

Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

in r

ive

r)

Flo

odin

g fro

m R

ive

rs (

ord

ina

ry

wa

terc

ou

rses)

Flo

odin

g fro

m R

ive

rs (

ma

in r

ive

r

plu

s o

rdin

ary

wa

terc

ou

rses)

Flo

odin

g fro

m th

e S

ea

Co

asta

l e

rosio

n

Flo

odin

g fro

m r

ese

rvo

irs

Su

rfa

ce

wa

ter

floo

din

g

Gro

un

dw

ate

r floo

din

g

Sew

er

floo

din

g

So

cia

l

En

vir

on

me

nt

Econ

om

ic








Bromley - Borough wide storage and FRM

Seek opportunities for incorporating storage or other FRM measures alongside other activity ( i.e. public realm works, highway works and to parks and open spaces) ... Subject to funding.

N N N N N N Y N N Y N N M2 - Prevention 2015 - 2021


Statutory FRMP

Local FRM Strategy


Bromley - SW run of neutral Parks and Open Spaces

As opportunities arise, reduce / delay surface water discharging from Bromley’s Parks and other Open Spaces


Moderate Bromley London Borough | Bromley London Borough

Statutory FRMP

Local FRM Strategy


Bromley - lake siltation survey

Borough wide review with Environment Agency or all Council controlled lake and other impounded water bodies. Assess for flood storage, quality and siltation levels

Y Y N N N N Y N N Y N N M2 - Prevention 2015 - 2021


Statutory FRMP

Local FRM Strategy


Bromley - Borough wide runoff management

Borough wide - promote interception of roof run-off into gardens and or front permeable paving, replace footways with permeable tarmac



Statutory FRMP

Local FRM Strategy


Bromley - Culvert blockage risk assessment

Desktop exercise to review residual risk of culvert blockage throughout non-Main River across borough. Consider options to improve surface water systems / catchments. Use to prioritise asset condition surveys.

N Y N N N N N N N Y N N M2 - Prevention 2015 - 2021

Very High

Bromley London Borough | Bromley London Borough

Statutory FRMP

Local FRM Strategy

of 360

Measure ID



Category of measure



Plan type

Community / place

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Bromley -Groundwater Risk Map

Build on understanding of historic groundwater flooding events to establish formal understanding of areas at risk of groundwater flooding. Work with the Environment Agency to produce local groundwater flood risk map. Incorporate into Boroughs Strategic Flood Risk Assessment.


2015 - 2021

Critical Bromley London Borough | Bromley London Borough

Statutory FRMP

Local FRM Strategy


Bromley - Groundwater Monitoring

Borough wide review of existing groundwater monitoring sites (boreholes) in relation to areas at risk within the borough. Review with the Environment Agency requirement for additional sites. Review telemetry arrangements at existing and proposed sites.


2015 - 2021

Very High

Bromley London Borough | Bromley London Borough

Statutory FRMP

Local FRM Strategy

Total = 8 measures

of 360

London Borough of Camden

Measure ID



Category of measure



Plan type

Community / place

Flo

odin

g fro

m r

ive

rs (

ma

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Flo

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Flo

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ACT1594 London Borough of Camden

On line advice to residents and businesses

To provide useful advice to Camden residents and businesses on flood risk with Camden on www.camden.gov.uk

N N N N N N Y N N Y N N M4 - Preparedness

Pre 2015 Low Camden London Borough | Camden London Borough

Statutory FRMP

Local FRM Strategy


Strategic Flood Risk Assessment (SFRA)

To complete an updated SFRA drawing on increased understanding of flood risk in the borough and in order to support the new spatial development plan for Camden

N N N N N N Y Y Y N N Y M4 - Preparedness

Pre 2015 Moderate Camden London Borough | Camden London Borough

Statutory FRMP

Local FRM Strategy


Heath Dams project

For the City of London to submit and the London Borough of Camden to consider a planning application which aims to reduce flood risk from the Hampstead Heath reservoirs (owned by the City of London but located in Camden)

N N N N N N Y N N Y N N M3 - Protection 2015 - 2021

High City of London Borough | Camden London Borough

Statutory FRMP

Reservoir Plans

Total = 3 measures

of 360

City of London Corporation

Measure ID

Place Measure name Measure details

Source of flood risk or coastal erosion Category of objective

Category of measure



Plan type

Community / place

Flo

odin

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m r

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ma

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Flo

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Flo

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ACT152 City of London

Update strategic flood risk assessment (SFRA) for City of London

To review and update the City of London SFRA and feed data and outcomes to relevant organisations

Y N N N N N Y Y N N N Y M4 - Preparedness

2015 - 2021

Low City of London Borough

Documents

Thames River Basin District Flood Risk Management Plan PART C · Flood risk management plans (FRMP) have been divided into 4 sections to help readers identify and access information