Appendix f policy development and appraisal final_dec2010

Severn Estuary SMP2 - Appendix F - Policy Development and Appraisal
Severn Estuary SMP Review
Appendix F: Policy Development
and Appraisal

Notice
This report was produced by Atkins Ltd for the Severn Estuary Coastal Group for the specific purpose of the
development of the Severn Estuary Shoreline Management Plan Review (SMP2).
This report may not be used by any person other than the Severn Estuary Coastal Group without the Severn
Estuary Coastal Group’s express permission. In any event, Atkins accepts no liability for any costs, liabilities
or losses arising as a result of the use of or reliance upon the contents of this report by any person other
than the Severn Estuary Coastal Group.
Atkins Limited
Severn Estuary Shoreline Management
Plan Review (SMP2)
Appendix F: Policy Development and Appraisal
December 2010

Document History – Policy Development and Appraisal
JOB NUMBER: 5078599 DOCUMENT REF: 5078599/62/DG/021
01 For PMG Review CW KH JMcC RS
3 Sept
2009
02
Final Draft For QRG
Review
SB KW JMcC
03 Final KW PC PC RS Dec 2010
Revision Purpose Description Originated Checked Reviewed Authorised Date

iv
Contents
Section Page
Supporting Appendices vi
Acronyms and Abbreviations vii
Glossary of Terms and Definitions xi
Compliance to the SMP2 Quality Review Group (QRG) Terms of Reference xii
1. PART A: INITIAL SMP2 POLICY APPRAISAL 1
1.1 Aim 1
1.2 Approach 1
2. Identification of Potential Policy Drivers and Options 5
2.1 Overview to the Section 5
2.2 Post-consultation amendments 5
2.3 Penarth Theme Area (PEN) 6
2.4 Cardiff Theme Area (CAR) 7
2.5 Wentlooge Theme Area (WEN) 9
2.6 Newport and Usk Theme Area (NEW) 11
2.7 Caldicot Levels Theme Area (CALD) 16
2.8 Wye and Chepstow Theme Area (WYE) 19
2.9 Tidenham and Surrounding Villages Theme Area (TID) 23
2.10 Lydney Theme Area (LYD) 25
2.11 Lydney to Gloucester Theme Area (GLO) 26
2.12 Gloucester to Haw Bridge Theme Area (MAI) 30
2.13 Gloucester to Sharpness Theme Area (SHAR) 35
2.14 Sharpness to Severn Crossings Theme Area (SEV) 41
2.15 Bristol and Severnside Theme Area (BRIS) 45
2.16 Portishead and Clevedon Theme Area (PORT) 49
2.17 Kingston Seymour to Sand Bay Theme Area (KIN) 51
2.18 The Holms Theme Area (HOL) 54
3. PART B: POLICY ASSESSMENT AGAINST OBJECTIVES 55
3.1 Aim 55
3.2 Approach 55
3.3 Assumptions 58
3.4 Other Assumptions 59
3.5 Water Framework Directive (WFD) 60
3.6 Post-consultation amendments 60
4. Objectives Appraisal and Policy Scenario Development 61
4.1 Penarth Theme Area (PEN) 62
4.2 Cardiff Theme Area (CAR) 68
4.3 Wentlooge Theme Area (WEN) 78
4.4 Newport and the River Usk Theme Area (NEW) 84
4.5 Caldicot Levels Theme Area (CALD) 104
4.6 Chepstow and the River Wye Theme Area (WYE) 114
4.7 Tidenham and Surrounding Villages Theme Area (TID) 129
4.8 Lydney Harbour Theme Area (LYD) 135
4.9 Lydney to Gloucester Theme Area (GLO) 138

v
4.10 Gloucester to Haw Bridge Theme Area (MAI) 161
4.11 Gloucester to Sharpness Theme Area (SHAR) 181
4.12 Sharpness to Severn Crossings Theme Area (SEV) 209
4.13 Severnside to Bristol and Avon Theme Area (BRIS) 227
4.14 Portishead and Clevedon Theme Area (PORT) 251
4.15 Kingston Seymour to Sand Bay Theme Area (KIN) 264
4.16 The Holms Theme Area (HOL) 279

vi
Supporting Appendices
Information required to support the Severn Estuary Shoreline Management Plan Review (SMP2) is
provided in the following appendices. These supporting documents offer transparency to the decision
making process that is undertaken, leading to explanations and reasoning for the promoted policies.
A: SMP2 Development
The history, structure and development of the SMP are detailed in
this report. The investigation and decision making process are
explained more fully to outline the procedure to setting policy.
B: Stakeholder Engagement and
Consultation
Stakeholder communication is continuous through the SMP2
process, comments on the progress of the management plan are
recorded within Appendix B.
C: Baseline Process
Understanding
This report includes detail of coastal dynamics, defence data and
shoreline scenario assessments of NAI (natural shoreline
evolution) and With Present Management (WPM) i.e.: SMP1
Policy.
D: Theme Review
The identification and evaluation of the natural landscape and
conservation, the historic environment and present and future
land use of the shoreline.
E: Issues, Features and
Objectives
The features of the shoreline are listed within this report. A series
of strategic objectives are then set along with commentary on the
relative importance of each feature identified.
F: Policy Development and
Appraisal
Presents the consideration of generic policy options for
each frontage identifying possible acceptable policies for
testing. Appendix F Also presents the appraisal of impacts
upon shoreline evolution and the appraisal of objective
achievement.
G: Preferred Policy Scenario
Testing
Presents the policy assessment of appraisal of objective
achievement towards definition of the Preferred Plan (as
presented in the Shoreline Management Plan document).
H: Economic Appraisal and
Sensitivity Testing
Presents the economic analysis undertaken in support of the
Preferred Plan.
I: Strategic Environmental
Assessment Report
Presents the various items undertaken in developing the Plan
that specifically relate to the requirements of the EU Council
Directive 2001/42/EC (the Strategic Environmental Assessment
Directive), such that all of this information is readily accessible in
one document. This includes work to help towards a Habitat
Regulatory Assessment (HRA).
J: Water Framework
Assessment Report
Provides a retrospective assessment of the policies defined
under the Severn Estuary SMP2 highlighting future issues for
consideration at policy implementation stage.
K: Bibliographic Database
All supporting information used to develop the SMP is referenced
for future examination and retrieval.
The information presented in each appendix is supported and guided by other appendices; the broad
relationships between the appendices are illustrated overleaf.

Severn Estuary SMP Review vii
Acronyms and Abbreviations
Term Definition
AA Appropriate Assessment.
ABP Association of British Ports
AONB Area of Outstanding Natural Beauty.
ASERA Association of Severn Estuary Relevant Authorities
ATL Advance the Line
BAP Biodiversity Action Plans
BCCPA Bristol Channel Counter Pollution Association
BMIF British Marine Federation
CAPE Community Adaptation Planning and Engagement
CCW Countryside Council for Wales
CD Chart Datum.
CFMP Catchment Flood Management Plan
CHaMP Coastal Habitat Management Plan
CPSE Coast Protection Survey England
CSG
Client Steering Group, principal decision-making body for the Shoreline
Management Plan = Severn Estuary Coastal Group (SECG)
CV Capital Value. The actual value of costs or benefits.
DCLG Department of Communities and Local Government
DECC Department of Energy and Climate Change
Defra Department for Food, Environment and Rural Affairs.
EA Environment Agency, may also be referred to as 'The Agency'
EH English Heritage
EiP Examination in Public
EMF
Elected Members Forum (SMP2), comprising an Elected Member from each of
the Local Authorities
FCA Flood Consequence Assessment
FCDPAG3 Flood and Coastal Defences Project Appraisal Guidance
FCS Favourable Conservation Status
GCR Geological Conservation Review site

Severn Estuary SMP Review viii
Term Definition
GES Good Ecological Status
GHT Gloucester Harbour Trustees
GIS Geographic Information System
HAT Highest Astronomical Tide
HER Historic Environment Record
HLT High Level Target
HMWB Heavily Modified Water Bodies
HRA Habitats Regulations Assessment
HTL Hold the Line
ICZM Integrated Coastal Zone Management
IFCA Integrated Flood Consequence Assessment
IROPI Imperative Reasons of Over-riding Public Interest
JAC Joint Advisory Committee (of the Severn Estuary Partnership)
KSG
Key Stakeholder Group, which acts as a focal point for discussion and
consultation through development of the SMP
KWS Key Wildlife Sites
LAT Lowest Astronomical Tide
LDP Local Development Plan
LPA Local Planning Authority
MAFF Ministry of Agriculture Fisheries and Food (now DEFRA)
MCZ Marine Conservation Zone
MHWN Mean High Water Neap tide
MHWS Mean High Water Spring tide
MLWN Mean Low Water Neap tide
MLWS Mean Low Water Spring tide
MMO Marine Management Organisation
MoD Ministry of Defence
MR Managed Realignment
MSL Mean Sea Level
MU Management Unit

Severn Estuary SMP Review ix
Term Definition
NAI No Active Intervention
NE Natural England
NEDS National Economic Development Strategy
NFDCC National Flood and Coastal Defence Database
NMR National Monuments Record
NNR National Nature Reserve
NT National Trust
ODPM Office of the Deputy Prime Minister
PCPA Planning and Compulsory Purchase Act
PMG Project Management Group
PPG Planning Policy Guidance
PPS Planning Policy Statement
PSA Public Service Agreement
PU Policy Unit
PWW Planning Policy Wales
QRG Quality Review Group
RBMP River Basin Management Plan
RCZAS Rapid Coastal Zone Assessment Survey
RDP Rural Development Plan
RSS Regional Spatial Strategy
RYA Royal Yachting Association
SAC Special Area of Conservation
SAM Scheduled Ancient Monument
SDAP Sustainable Development Action Plan
SDS Sustainable Development Schemes
SEA Strategic Environmental Assessment
SECG Severn Estuary Coastal Group = Client Steering Group (CSG)
SEFRMS Severn Estuary Flood Risk Management Strategy
SEP Severn Estuary Partnership

Severn Estuary SMP Review x
Term Definition
SESMP2 Severn Estuary Shoreline Management Plan Review
SFC Sea Fisheries Committee
SFRA Strategic flood risk assessment
SMP Shoreline Management Plan
SMP1 A first-round Shoreline Management Plan
SMP2 A second-round Shoreline Management Plan
SMR Sites and Monuments Record
SoP Standard of Protection
SPA Special Protection Area
SRS Single Regional Strategy
SSSI Site of Special Scientific Interest
SuDs Sustainable Urban Drainage System
TAN Technical Advice Note
UKCiP United Kingdom Climate Impacts Programme
UKCP UK Climate Projections
WAG Welsh Assembly Government
WFD Water Framework Directive
WPM With Present Management
WSP Wales Spatial Plan

Severn Estuary SMP Review xi
Glossary of Terms and Definitions
Term Definition
Accretion
Accumulation of sand or other beach material due to the natural action of waves,
currents and wind
Coastal Squeeze
The reduction in habitat area which can arise if the natural landward migration of a
habitat under sea level rise is prevented by a fixation of the high water mark.
Feature (also
referred to as
Issue)
Something tangible that provides a service to society in one form or another, or
more simply, benefits certain aspects of society by its very existence. This will be of
a specific geographical location and specific to the SMP.
Foreshore Zone between high and low water marks
Groyne
Shore protection structure built perpendicular to the shore, designed to trap
sediment
Objective
An objective is set, through consultation with key parties, to encourage the
resolution of an issue or range of issues. It is a desired state to be achieved in the
future
Policy
In this context, ‘policy’ refers to the generic shoreline management options based
on the Defra guidance
Policy Scenario
The combinations of policies selected against the various feature / benefit
objectives for the SMP frontage
Policy Unit
Sections of coastline for which a certain coastal defence management policy has
been defined.

Severn Estuary SMP Review xii
Compliance to the SMP2 Quality Review
Group (QRG) Terms of Reference
This Appendix of the SMP 2 seeks to meet the following requirements set out by the Terms of
Reference (ToR) of the Quality Review Group:
• Impacts of policies on both coastal processes and coastal features (as identified by
the Theme Review) are adequately addressed in both the plan summary in the
main document and the supporting appendices
• The impacts of different policy scenarios have been clearly analysed and
compared, e.g. NAI against with present management
• The justification (or rejection) of policies is clearly defined in terms of processes,
environment, social and economics parameters, both in the short and long-term
• The SMP challenges with coastal management options, particularly in the longer
term epoch
• The decision process is logical and there is a clear audit trail for decisions
• The long-term plan does not appear to be driven by any short-term policy options
• Where social reasons override the environmental or economic factors to support
the preferred policy option, the decision process and any impacts are clearly set
out
This Appendix is divided into two separate Parts:
PART A – Initial SMP2 Policy Appraisal;
PART B – Policy Assessment against Objectives.

Severn Estuary SMP Review 1
1. PART A: INITIAL SMP2 POLICY
APPRAISAL
1.1 Aim
The Initial Policy Assessment aims to consider appropriate potential SMP2 policies based on the
understanding of local features as set out in the Theme Review (Appendix D), their significance
and whether they can be replaced (Appendix E).
This Appendix outlines the key steps undertaken in the development and definition of policies.
Policy Scenarios (referred to in this SMP2 as “Management Approaches” have then been taken
forward and appraised and the results of this appraisal are presented in Appendix G.
The recommended approach (Defra Guidance) for development of a sustainable plan is through
the assessment of Policy Scenarios to take account of the way lengths of shoreline interact with
each other, rather than considering locations in isolation. The aim of this stage has therefore
been to identify the appropriate combinations of policies to be appraised for the whole SMP
frontage. This has involved the following activities:
• Identification of Key Policy Drivers
• Identification of potential policy options through a broad-level appraisal of the four generic
policy choices
• Development of Policy Scenarios for assessment
It should be noted that the first two tasks have looked at individual locations in relative isolation,
but wider-scale impacts of policies have been assessed during the Policy Scenario appraisal
stage which has looked at the likely shoreline response and evolution both locally and along the
SMP shoreline as a whole.
1.2 Approach
1.2.1 Policy Unit Development
In the following initial assessment of appropriate policy, each existing Theme Area is divided into
a series of Policy Units. Policy Units were determined by land use, flood and / or erosion risk
along the shoreline. Where flood / erosion risk and / or land use is common across a Theme Area
boundary, the Policy Unit will cross Theme Area to form a more appropriate Policy Unit. The
segmentation of Oldbury and Berkeley Power Stations are examples of how land-use at the
shoreline has driven individual Policy Units - the small stretches of shoreline are separate Policy
Units due to the different land use and level of risk associated with each site. Extensive flood risk
on the Caldicot and Wentlooge Levels has led to the development of large Policy Units here.
The tables presented in this report (Identification of Potential Policy) identify those indicative
Policy Units and initial policy options that have been reviewed in more detail subsequently. Land
use and flood and/or erosion risk along the shoreline are important considerations in the
assessment of probable appropriate policy. Different features along the shoreline have conflicting
objectives, and therefore multiple policy options are selected through the following assessment for
later appraisal over the 3 epochs considered by the SMP2: 0 -20 years, 20 -50 and 50 to 100
years.
Policy Unit titles are related to the Theme Area originally identified to help the reader and for
consistency and transparency (e.g. PEN = Penarth).

1.2.2 Policy Options
An initial brief review of all four generic Defra policy options was undertaken to determine which
policies could be appropriate, considering not only the defined objectives but also their technical
feasibility, and likely economic justification. Details on how these options were communicated to
Key Stakeholders (as part of the Policy Development approach undertaken in June 2009 is set out
in Appendix B).
In order to determine the likely economic justification, a broad assessment was made of assets
potentially at risk under the baseline scenario No Active Intervention (NAI). This used the
mapping produced as part of the baseline scenario assessment (see Appendix C). The possible
benefits and opportunities arising from each policy option in relation to the objectives for a
frontage were identified, for each of the three epochs. This process allowed identification of which
policy options were viable for a particular feature and were therefore taken forward for further
scrutiny.
The definitions for this SMP2 as consulted with the Coastal Group are set out below:
• Hold the Line (HTL) by maintaining or changing the standard of protection. The standard of
protection could increase or decrease.
The intent of this policy is to maintain the current position of the shoreline. This does not
necessarily mean that the existing defences would be maintained in exactly the same form
as they are at present. There may be a need to adjust the local alignment in the future or to
replace or add to structures e.g. constructing cross shore or shore-linked structures, such as
groynes or breakwaters, may be one approach adopted under this policy in specific cases.
The policy sets the intent to maintain the current position of the coast in an appropriate
manner, which will differ depending on the specific local issues. The standard of protection
could increase, decrease or stay the same.
• Advance the Line (ATL) by building new defences on the seaward side of the original
defences, the advancement of the existing defence line assumes land reclamation and
increased standard of protection from flooding and erosion to the current assets. Using this
policy should be limited to those Policy Units where significant land reclamation is
considered.
This scenario has been appraised over the whole life cycle of the SMP2 (i.e. 100-years).
Within the tables the 3 epochs have been merged to indicate that advancing the line would
have an impact, but should not be considered in each epoch, (i.e. the line would not be
advanced in all 3 epochs, it would be advanced once, and then held in that position.) The
timing of the process of advancing the line will need to be further appraised in future studies.
• Managed Realignment (MR) by allowing the shoreline to move backwards or forwards, with
management to control or limit movement (such as reducing erosion or building new
defences on the landward side of the original defences).
Managed realignment is used where there is a need for continued intervention to achieve a
specific outcome. It may arise from a series of different circumstances. The overall aim is
that management of the shoreline would be improved by either allowing or creating the
conditions for the coast to realign.
One example of this is moving a linear flood defence back from the active coastal zone,
providing a more secure position for defences, while also allowing the shoreline to adjust. In
other cases the coast may be allowed to retreat before intervention is undertaken, which
may create the opportunity to retain a beach in front of a set back hard defence. Managed

realignment should also take account of how adjacent Policy Units function together. For
example, it may be that in one Policy Unit the policy is to hold the line and in doing so; the
coast in an adjacent unit is allowed to function more naturally.
This scenario has been appraised over the whole life cycle of the SMP2 (i.e. 100-years).
Within the tables the 3 epochs have been merged to indicate that realigning the line would
have an impact, but should not be considered in each epoch, (i.e. the line would not be a
realigned in all 3 epochs, it would be moved once, and then held in that position.) The
timing of the process of realigning the line will need to be further appraised in future studies.
• No Active Intervention (NAI), where there is no investment in coastal defences or
operations.
A No Active Intervention policy arises from two distinct sets of circumstances.
1 – The coast needs to be allowed to develop naturally. Typically, it may be that erosion of a
frontage is providing sediment to other sections of the coast. It may, therefore, be important
that the coast is allowed to continue to erode if sustainable intervention is to be achieved
elsewhere.
2 – Where it is unlikely that operating authorities would provide funding for defence. In such
cases, privately funded works may still be permissible but there may be conditions
associated with this to ensure that private works do not result in negative impacts on other
interests.
In setting policy there will be important caveats. There is undoubtedly uncertainty associated
with behaviour of the estuary, in particular in relation to the ability to maintain defences in
relation to the estuary’s response to sea level rise. In addition to the above there are
potential impacts on the important natural conservation interests that need to be considered.
While the proposed management plan is realistic set against anticipated change this will
need to be monitored and reviewed.
1.2.3 Key Policy Drivers
Key Policy Drivers are features that are so important that they can influence the choice of policy
option at a large scale, in more than one stretch of shoreline (Policy Unit) and possible across the
whole SMP2. Keeping or improving the benefits people get from these features may be a
requirement at a regional, national or international level e.g. protecting EU conservation sites is an
international commitment. Key Policy Drivers point towards the choice of possible policies.
Impacts on Key Policy Drivers have been assessed as major impacts.
Features that are not Key Policy Drivers are not ignored. They are considered in choosing the
policy option in the Policy Unit where they are located, but they do not influence the choice of
policy beyond their immediate location. Key Policy Drivers can influence the choice of policy
option in more than one Policy Unit (i.e.: across a far broader strategic area).
Below sets out how different types of feature have been assessed and whether they are
considered to be Key Policy Drivers.
Examples of a key driver may include:
• a power station which must be maintained, due to its national significance, (possibly only
for a certain period of time if the facility is to be closed/decommissioned, or:
• an internationally important habitat which relies on constant sediment feed, driving policy
for the up-drift shoreline.

The Issues and Features exercise (see Appendix E) was used to initially identify key policy
drivers for the Estuary. The Key Stakeholders and Elected Members were invited to review and
comment at the June 2009 workshop and forum.

2. Identification of Potential Policy Drivers
and Options
2.1 Overview to the Section
This section summarises for each Theme Area a series of proposed Policy Units, each containing
a broad, high-level appraisal of the policies undertaken to assess potential benefits of
implementing a policy. It has been produced to help identify where more detailed policy appraisal
work was undertaken (see Appendix G). It outlines current SMP1 policy, the key factors within
each Policy Unit (including possible Key Policy Drivers for later consideration), whether any
Catchment Flood Management Plan (CFMP) policy is assigned within the Policy Unit boundary
and the position of the Policy Unit boundary lines, which are an important consideration in later
analysis.
At some locations, a change in policy to Managed Realignment (MR) or No Active Intervention
(NAI), in the long-term, may potentially offer technical and/or environmental benefits, however its
implementation could involve the loss of important environmental or anthropogenic assets. In
these locations consideration of the long-term policy is presented for the 50- 100 year time period.
This reflects its consideration as a possible long-term goal, and also the barriers to promoting such
an approach within the current legislative framework whist properties remain occupied and
environmental site losses require compensation. This does not preclude the earlier
implementation of the long-term policy if favourable conditions are achieved sooner.
Stakeholders were consulted for their views regarding the appropriateness of the proposed policy
options during the consultation events held in June 2009 (see Appendix B).
2.2 Post-consultation amendments
It should be noted that the policy options assessed in this part are those undertaken to prepare
the draft SMP2 prior to the public consultation in 2009. Following the analysis of the consultation
results, policy options may be changed, based on the feedback and comments received during
the consultation. The policies presented in the final SMP2 document could, therefore, differ from
those assessed or presented in this Appendix. Comments received and amendments made as a
result of the public consultation are set out in Appendix B – Stakeholder Involvement.

2.3 Penarth Theme Area (PEN)
Penarth – South of Forest Road (PEN 1)
Summary description: Mainly residential – more rural at the southern end.
Possible Key Policy Drivers - Coastal path, Nature Conservation sites, Residential areas
Position of ‘the line’: Toe of cliff
Policy Years 0 –20(2025) Years 20–50(2055) Years 50–100(2105)
Hold the Line To be appraised – No defences exist – minimal benefits, highly costly.
Advance the Line
No benefits, and potential environmental impacts, would result from seaward
movement of the line.
Managed Realignment
Not feasible – no defences to manage, technically difficult and costly – low erosion, no
risk of flooding
No Active Intervention To be appraised – Low rate of erosion, no risk of flooding – preferred option
Current SMP1 Policy
SMP1 Management Unit Short Term Policy
Lavernock Point to Penarth
Esplanade
Do Nothing
Penarth – Forest Road to Penarth Head (PEN 2)
Summary description: Mainly residential and small scale commercial, hotels, B&Bs
Possible Key Policy Drivers - Coastal path, Nature Conservation sites, Pier, Lifeboat station, Residential
properties
Policy Years 0 – 20 (2025) Years 20 – 50 (2055) Years 50–100 (2105)
Hold the Line
Some defences – sea wall and groynes. Low erosion, flood risk to esplanade – to be
appraised
Advance the Line
Managed Realignment Not feasible
No Active Intervention Low rate of erosion, no risk of flooding – to be appraised
Current SMP1 Policy
Esplanade
Do Nothing
Penarth Esplanade Hold the Line
Penarth Head
Hold the Line or Retreat the Line (by cliff
control)

2.4 Cardiff Theme Area (CAR)
Cardiff – Cardiff Bay
(CAR 1)
Summary description: Residential, commercial, hotels, offices
Possible Key Policy Drivers – Coastal path (along Barrage), Cardiff Barrage & Bay
Position of ‘the line’: Barrage
Policy Years 0 – 20 (2025) Years 20 – 50 (2055) Years 50 – 100 (2105)
Hold the Line To be appraised – Defences – Cardiff Barrage 1,000 year SoP
Advance the Line
Managed Realignment Not feasible
No Active Intervention Not feasible – Barrage must be maintained
Current SMP1 Policy
Cardiff Bay Barrage Hold the Line
Cardiff – Barrage to River Rhymney, Rover Way
(CAR 2)
Summary description: Mainly industrial and commercial, some residential
Possible Key Policy Drivers - Coastal path, Nature Conservation sites, Pier, docks
Position of ‘the line’: crest of existing defences / made ground or current line of high ground
Hold the Line
Some defences – made ground with intermittent rock armouring.
Some flood risk in Tremorfa in 20-50 yrs.
Will protect residential and industrial assets – to be appraised
Advance the Line
Managed Realignment
Not feasible – would require relocation of large area of industrial, commercial and
residential properties
No Active Intervention Low rate of erosion, low flood risk in short term – to be appraised
Current SMP1 Policy
Cardiff Bay Barrage Hold the Line
North of Cardiff Flats to Pengam Moor Hold the Line
River Rhymney Hold the Line

Cardiff – River Rhymney to Lamby Way landfill site drain / sewer outfall
(CAR 3)
Summary description: Mainly commercial and residential
Possible Key Policy Drivers - Coastal path, Nature Conservation sites, Commercial, Residential, Landfill site
Position of ‘the line’: crest of existing defences / made ground, current line of high ground or crest of river
bank
Hold the Line
Some defences – earth embankments
Some flood risk in Tremorfa in 20-50 yrs.
Will protect residential and industrial assets – to be appraised – consider CFMP policy
Advance the Line No benefits, and potential environmental impacts
Managed Realignment
Not feasible – would require relocation of large area of industrial, commercial and
No Active Intervention
Low rate of erosion, low flood risk in short term – to be appraised – consider CFMP
policy
Current SMP1 Policy
River Rhymney Hold the Line
CFMP Policy
CFMP Unit Policy
River Rhymney PU7
Policy 3 take actions to maintain flood
risk at current level (accepting that flood
risk will increase over time)

2.5 Wentlooge Theme Area (WEN)
Wentlooge – Lamby Way Landfill site drain / sewer outfall to Sluice House Farm / Tarwick Rhyne
(WEN 1)
Summary description: mainly residential, commercial, becoming agricultural towards northern end
Possible Key Policy Drivers - Nature Conservation sites, railway line, residential, commercial, agricultural
properties, heritage landscape; electricity transmission network, sewerage infrastructure.
Position of ‘the line’: grass embankment
Hold the Line
Defences – grass embankment fronted by rock armour with foreshore polders
Long term erosion, flood risk if defences fail
Will protect residential and industrial assets – to be appraised
Advance the Line
Managed Realignment Not feasible in short / medium term. Long term – to be appraised
No Active Intervention Not feasible in short / medium term. Long term – to be appraised
Current SMP1 Policy
Rumney Great Wharf Hold the Line or Retreat the Line

Wentlooge – Sluice House Farm / Tarwick Rhyne to west bank of River Ebbw at Maesglas railway
bridge (WEN 2)
Summary description: mainly agricultural and residential
Possible Key Policy Drivers - Nature Conservation sites, railway line, heritage landscape, electricity
transmission network, sewerage infrastructure
Position of ‘the line’: grass embankment
Hold the Line
Defences – grass embankment fronted by rock armour
Flood risk if defences fail
Will protect agricultural assets – to be appraised – consider CFMP policy
Advance the Line
Managed Realignment
Not feasible in short / medium term. Long term – to be appraised - consider CFMP
policy
No Active Intervention Not feasible – large area at risk
Current SMP1 Policy
Peterstone Great Wharf Hold the Line
Peterstone Gout to East of Outfall Lane Hold the Line
East of Outfall Lane to New Gout Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 7 (Ebbw)

2.6 Newport and Usk Theme Area (NEW)
Newport – East bank of River Ebbw at Maesglas railway bridge to west bank Usk at transporter bridge
(NEW 1)
Summary description: Newport docks
Possible Key Policy Drivers - Nature Conservation sites, docks,
Position of ‘the line’: crest of river bank or defences
Hold the Line
To be appraised
Defences – earth embankment ; Flood risk – minimal in short term, increased flooding
in medium term
Will protect docks – to be appraised - consider CFMP policy
Advance the Line
Managed Realignment Not feasible – would require relocation of docks
No Active Intervention Not feasible beyond short term – to be appraised - consider CFMP policy
Current SMP1 Policy
Ebbw River to the Transporter Bridge Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 7 (Ebbw)

Newport – west bank of Usk at transporter bridge to west bank of Usk at M4 crossing
(NEW 2)
Summary description: mainly industrial and residential
Possible Key Policy Drivers - Nature Conservation sites, industrial assets
Hold the Line
Defences – earth embankment and masonry walls
Flood risk – risk of flooding if defences fail
Will protect industrial / residential assets – to be appraised - consider CFMP policy
Advance the Line
Managed Realignment Not feasible – would require large scale relocation of industry
No Active Intervention Not feasible beyond short term – to be appraised - consider CFMP policy
Current SMP1 Policy
Transporter Bridge to the M4 Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 7 (Usk) Policy 5 - take further action to reduce
flood risk

Newport – Usk (both banks) at M4 crossing to Newbridge on Usk
(NEW 3)
Summary description: approx 50% residential, 50% countryside/agricultural
Possible Key Policy Drivers - Nature Conservation sites, residential properties, historic environment
(Caerleon), M4
Hold the Line
Defences – earth embankment and masonry walls risk of flooding if defences
fail
Will protect residential / agricultural assets – to be appraised - consider CFMP
policy
Advance the Line
Managed Realignment
To be appraised for potential long term technical and environmental benefits –
consider CFMP policy
To be appraised for potential long term technical and environmental benefits –
consider CFMP policy
Current SMP1 Policy
The M4 to Caerleon (both banks) Hold the Line
CFMP Policy
CFMP Unit Policy
flood risk

Newport – east bank of Usk at M4 crossing to Spytty Pill, north of A48 crossing
(NEW 4)
Summary description: mainly residential, some industrial at southern end of unit
Possible Key Policy Drivers - Nature Conservation sites, residential properties, M4
Hold the Line
Defences – earth embankment with reinforced concrete walls
Risk of flooding if defences fail
Will protect residential assets – to be appraised - consider CFMP policy –
consider links with adjacent Policy Units
Advance the Line
Managed Realignment
Not feasible – would require large scale relocation of numerous residential
properties
Not feasible – would result in large scale inundation of numerous residential
properties
Current SMP1 Policy
M4 to Spytty Pill Hold the Line
CFMP Policy
CFMP Unit Policy
flood risk

Newport – Spytty Pill, north of A48 crossing to Uskmouth Power station point (NEW 5)
Summary description: mainly industrial
Possible Key Policy Drivers - Nature Conservation sites, residential properties, Uskmouth Power Station
Hold the Line
Defences – earth embankment and masonry walls risk of flooding if defences
fail
Will protect industrial assets – to be appraised - consider CFMP policy –
consider links with adjacent Policy Units
Advance the Line
Managed Realignment
Not feasible – would require large scale relocation of numerous industrial
properties and power station
Not feasible – would result in large scale inundation of industrial properties and
power station
Current SMP1 Policy
Spytty Pill to Uskmouth Power Station Hold the Line
CFMP Policy
CFMP Unit Policy
flood risk

2.7 Caldicot Levels Theme Area (CALD)
Caldicot – Uskmouth Power Station point to Sudbrook Point, north of M4 Severn Crossing (CALD 1)
Summary description: mainly agricultural / countryside, some industrial / waste sites near Newport ; Nash
waste water treatment works
Possible Key Policy Drivers – Llanwern Steelworks, heritage landscape, Nature Conservation sites, isolated
residential properties, railway, M4, electricity transmission network, sewerage infrastructure.
Position of ‘the line’: crest of embankment defences
Hold the Line
Defences – earth embankment with rock armouring / concrete revetment
Significant risk of flooding if defences fail
Will protect agricultural / industrial assets – to be appraised – consider links with
adjacent Policy Units
Advance the Line
Managed
Realignment
Not feasible in short / medium term. Long term – to be appraised
Would result in large scale uncontrolled inundation of agricultural assets and industry
assets (Llanwern) and infrastructure services
Current SMP1 Policy
Uskmouth Power Station to Saltmarsh
Farm
Hold the Line
Saltmarsh Farm to Gold Cliff Hold the Line (or locally retreat the line)
Gold Cliff to Cold Harbour Pill Hold the Line
Cold Harbour Pill to West Pill Hold the Line
West Pill to West of Sudbrook Point Hold the Line

Caldicot – Sudbrook Point, north of M4 Severn Crossing to Black Rock at Black Rock Road (CALD 2)
Summary description: mainly agricultural / countryside, some residential
Possible Key Policy Drivers – electricity transmission network, heritage landscape, Nature Conservation
sites, isolated residential properties
Hold the Line
Defences – rock armouring and groynes
No erosion or flood risk – higher ground
Will protect agricultural / residential assets – to be appraised – consider links with
adjacent Policy Units
Advance the Line
Managed Realignment
Not feasible – no defences to manage, technically difficult and costly – low erosion, no
risk of flooding
No Active Intervention Low rate of erosion, no risk of flooding – preferred option
Current SMP1 Policy
Sudbrook Point to Black Rock Do Nothing, locally Hold the Line or
Retreat the Line.

Caldicot – Black Rock at Black Rock Road to west bank of River Wye at Park Redding, Thornwell
(CALD 3)
Summary description: mainly agricultural / countryside, some industrial near mouth of River Wye
Possible Key Policy Drivers – electricity transmission network, railway, A48, heritage landscape, Nature
Conservation sites, isolated residential properties
Policy Years 0 – 20
(2025)
Years 20 – 50 (2055) Years 50 – 100 (2105)
Hold the Line
Defences – earth embankment with rock armouring
Significant risk of flooding if defences fail
Will protect agricultural assets, electricity and transport infrastructure – to
be appraised – consider links with adjacent Policy Units
Advance the Line
No benefits, and potential environmental impacts, would result from
seaward movement of the line.
Managed Realignment To be appraised for medium / long terms
No Active Intervention To be appraised for short term
Current SMP1 Policy
Sudbrook Point to Black Rock
Do Nothing, locally Hold the Line or
Retreat the Line

2.8 Wye and Chepstow Theme Area (WYE)
Wye – west bank Wye at Park Redding, Thornwell to west bank River Wye at Alcove Wood, Chepstow
(WYE 1)
Summary description: mainly residential, some industrial
Possible Key Policy Drivers – electricity transmission network, railway, A48, heritage sites, Nature
Conservation sites
Position of ‘the line’: crest of defences / river bank
Hold the Line
Hard defences
Limited erosion and flood risk
Will protect residential assets, transport infrastructure – to be appraised – consider links
with adjacent Policy Units
Advance the Line
No benefits, and potential environmental impacts, would result from seaward movement of
the line.
Managed
Realignment
Not feasible – would require large scale relocation of numerous residential and industrial
assets
No Active
Intervention
Not feasible – limited process benefit, inundation of residential assets
Current SMP1
Policy
Chepstow from Thornwell to Alcove Wood Do Nothing, locally Hold the Line

Wye – west bank River Wye at Alcove Wood, Chepstow to Bigsweir Bridge + east bank River Wye at
Bigsweir Bridge to Bridge Street bridge, Sedbury (WYE 2)
Summary description: mainly agricultural / countryside, some residential
Possible Key Policy Drivers – Nature Conservation sites, historic environment assets
Position of ‘the line’: crest of river bank
Hold the Line
No defences
Very limited erosion and flood risk
No benefit – limited risk
Advance the Line
Managed Realignment No process benefits
No Active Intervention Potential process benefits – to be appraised – preferred option
Current SMP1 Policy
Alcove Wood to Tintern Abbey, Tintern
Abbey to Chapel House Wood
Do Nothing, locally Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 1 (Wye)
Policy 4 - Take further action to sustain
current scale of flood risk into the future
(responding to the potential increases
in flood risk from urban development,
land use change, and climate change).
Policy Unit 4 (Wye
Policy 6 Take action with others to
store water or manage run-off in
locations that provide overall flood risk
reduction or environmental benefits,
locally or elsewhere in the catchment

Wye – east bank River Wye at Bridge Street bridge, Sedbury to Sedbury STW (WYE 3)
Summary description: mainly residential
Possible Key Policy Drivers – Nature Conservation sites, railway line, A48
Position of ‘the line’: crest of river bank
Hold the Line
No defences
Very limited erosion and flood risk No benefit – limited risk
Advance the Line
No Active Intervention To be appraised - Potential process benefits – to be appraised – preferred option
Current SMP1 Policy
Alcove Wood to Tintern Abbey, Tintern
Abbey to Chapel House Wood
Chapel House Wood to Sedbury
Sewage Works
Do Nothing
CFMP Policy
CFMP Unit Policy
Policy Unit 1 (Wye)
current flood risk (responding to the
potential increases in flood risk from
urban development, land use change,
and climate change).
Policy Unit 4 (Wye)
Policy 6 Take action with others to store
water or manage run-off in locations that
provide overall flood risk reduction or
environmental benefits, locally or
elsewhere in the catchment

Wye – east bank River Wye at Sedbury STW to End of Beachley Road, Beachley Point (WYE 4)
Summary description: agricultural / countryside, MOD site
Possible Key Policy Drivers – Nature Conservation sites, railway line, A48
Position of ‘the line’: crest of river bank / cliff
Hold the Line
No defences
Very limited erosion and flood risk No benefit – limited risk
Advance the Line
No Active Intervention To be appraised - Potential process benefits – to be appraised – preferred option
Current SMP1 Policy
Sedbury Sewage Works to north
Beachley
Do Nothing
Beachley Point Do Nothing
CFMP Policy
CFMP Unit Policy
Policy Unit 1 (Wye)
current flood risk (responding to the
potential increases in flood risk from
urban development, land use change,
and climate change).
Policy Unit 4 (Wye)
Policy 6 Take action with others to store
water or manage run-off in locations that
provide overall flood risk reduction or
environmental benefits, locally or
elsewhere in the catchment

2.9 Tidenham and Surrounding Villages Theme Area (TID)
Tidenham and other villages – End of Beachley Road, Beachley Point to Guscar Rocks (TID 1)
Summary description: agricultural / countryside
Possible Key Policy Drivers – Nature Conservation sites, railway line
Hold the Line
No defences – railway embankment
Limited erosion, some long term flood risk
Advance the Line
No benefits, and potential environmental impacts, would result from seaward movement
of the line.
Managed
Realignment
May have Nature Conservation benefits in long term – to be appraised
No Active
Intervention
To be appraised - Potential process benefits – to be appraised – preferred option
Current SMP1
Policy
Beachley to Sedbury Cliffs Do Nothing
Sedbury Cliffs Do Nothing
CFMP Policy
CFMP Unit Policy
Policy Unit 2 (Severn Vale – Severn Tidal
Tributaries)
Policy 3 – Continue with existing or
alternative actions to manage flood risk at
the current level

Tidenham and other villages – Guscar Rocks to Lydney Harbour (TID 2)
Possible Key Policy Drivers – Nature Conservation sites, railway line
Hold the Line
Rock armour revetment
Limited erosion, flood risk if defence fails – links to Lydney
Will protect railway, agricultural assets, Lydney - to be appraised
Advance the Line
Managed Realignment May have Nature Conservation benefits in long term – to be appraised
No Active Intervention No process benefits
Current SMP1 Policy
Guscar Rocks to Lydney Harbour Mouth Hold the Line
CFMP Unit Policy
CFMP Policy
Policy Unit 2 (Severn Vale – Severn
Tidal Tributaries)
alternative actions to manage flood risk
at the current level

2.10 Lydney Theme Area (LYD)
Lydney – Lydney Harbour basin (LYD 1)
Possible Key Policy Drivers – Nature Conservation sites, railway line, harbour area
Position of ‘the line’: top of harbour basin bank
Hold the Line
No defences – railway embankment
Limited erosion, some long term flood risk
Will protect railway, agricultural assets, Lydney - to be appraised
Advance the Line
Managed Realignment Not feasible – would require relocation of harbour
No Active Intervention Potential uncontrolled inundation of harbour and Lydney
Current SMP1 Policy
Guscar Rocks to Lydney Harbour Mouth Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 8 Lydney – Severn Tidal
Tributaries

2.11 Lydney to Gloucester Theme Area (GLO)
Lydney to Gloucester – Lydney Harbour to Brims Pill (GLO 1)
Summary description: agricultural / countryside, isolated residential
Possible Key Policy Drivers – Nature Conservation sites, railway line, agricultural assets
Position of ‘the line’: top river bank
Hold the Line No defences Limited erosion and flood risk No benefit – limited risk
Advance the Line
Managed Realignment No benefits
No Active Intervention To be appraised – limited risk – preferred option
Current SMP1 Policy
Lydney Harbour to Cliff Farm Do Nothing
Cliff Farm to Wellhouse Rock Hold the Line
Wellhouse Rock to Poulton Court Hold the Line
Poulton Court to Whitescourt, Awre Do Nothing
CFMP Policy
CFMP Unit Policy
Tidal Tributaries)
Lydney to Gloucester – Brims Pill to Northington Farm (GLO 2)
Summary description: agricultural / countryside, residential (Awre)
Possible Key Policy Drivers – Nature Conservation sites, line, agricultural assets, electricity transmission
network
Hold the Line
No defences – except railway embankment
Limited erosion and flood risk Economically non-viable
Advance the Line
Managed Realignment May have Nature Conservation benefits – to be appraised
No Active Intervention May have Nature Conservation benefits – to be appraised
Current SMP1 Policy
Whitescourt to Hayward Hold the Line or Retreat the Line
Hayward to Northington Farm Hold the Line or Retreat the Line
CFMP Policy
CFMP Unit Policy
Tidal Tributaries)

Lydney to Gloucester – Northington Farm to Newnham Church (GLO 3)
Summary description: agricultural / countryside, residential (Newnham)
Possible Key Policy Drivers – Nature Conservation sites, railway line, agricultural assets, A48
Hold the Line
Defences – high ground / earth embankments
Limited erosion and flood risk Economically non-viable
Advance the Line
Managed Realignment No Nature Conservation / habitat creation options
No Active Intervention To be appraised – preferred option – limited risk
Current SMP1 Policy
Northington Farm to Portlands Nab
Do Nothing (generally) or Hold the Line
(locally)
Portlands Nab to the downstream
boundary of Newnham
Do Nothing (generally) or Hold/Retreat
the Line
CFMP Policy
CFMP Unit Policy
Tidal Tributaries)
Lydney to Gloucester – Newnham Church to Farm north of Broadoak (GLO 4)
Summary description: agricultural / countryside, residential (Newnham, Broadoak)
Possible Key Policy Drivers – Nature Conservation sites, railway line, residential assets, A48
Hold the Line
To be appraised
Defences – earth embankments, natural steep bank Limited erosion, some flood
risk Will protect residential assets, transport infrastructure
Advance the Line
Would result in uncontrolled inundation of residential properties and transport
infrastructure
Current SMP1 Policy
Newnham and Broadoak Hold the Line
CFMP Policy
CFMP Unit Policy
Tidal Tributaries)

Lydney to Gloucester – Farm to north of Broadoak to Hill Farm, Rodley (GLO 5)
Possible Key Policy Drivers – Nature Conservation sites, residential assets
Position of ‘the line’: toe of cliff, top of embankment
Hold the Line
Defences – earth embankments, natural low cliffs
Limited erosion, flood risk to agricultural land Economically non-viable
Advance the Line
Managed Realignment May be Nature Conservation / habitat creation benefits in medium / long term – to
be appraised
Current SMP1 Policy
Broadoak to the upstream end of
Garden Cliff
Hold the Line, locally Do Nothing
The Dumballs Hold the Line
Rodley to Bollow Do Nothing
CFMP Policy
CFMP Unit Policy
Tidal Tributaries)
Lydney to Gloucester – west bank at Hill Farm, Rodley to west bank at Goose Lane farm (GLO 6)
Possible Key Policy Drivers - Nature Conservation sites, residential / agricultural assets
Position of ‘the line’: top of river bank
Hold the Line
No defences – natural high ground Limited erosion and flood risk
Advance the Line
Current SMP1 Policy
Rodley to Bollow Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

Lydney to Gloucester – west bank at Goose Lane farm to west bank at Ley Road (GLO 7)
Possible Key Policy Drivers – Nature Conservation sites, residential / agricultural assets, A48
Hold the Line
Defences – earth embankment
Limited erosion, some flood risk
Will protect residential / transport assets – to be appraised
Advance the Line
Managed Realignment
Possible Nature Conservation / habitat creation options – would require relocation of
transport links / residential assets – to be appraised
May be process benefits – would result in inundation of transport links / residential
assets – to be appraised
Current SMP1 Policy
Bollow to Hartland’s Hill Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 2 (Severn Vale –
Severn Tidal Tributaries)
Policy 3 – Continue with existing or alternative
actions to manage flood risk at the current level
Lydney to Gloucester – Ley Road to Drain from Long Brook (GLO 8)
Possible Key Policy Drivers – Nature Conservation sites, residential / agricultural assets, A48, railway
Hold the Line
Defences – earth embankment, natural high ground
Will protect residential / transport assets – to be appraised
Advance the Line
Managed Realignment
Possible Nature Conservation / habitat creation options – would require relocation of
transport links / residential assets – to be appraised
May be process benefits – would result in inundation of transport links / residential
assets – to be appraised
Current SMP1 Policy
Hartland’s Hill to Denny Hill Hold the Line
Denny Hill to Minsterwortham Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

2.12 Gloucester to Haw Bridge Theme Area (MAI)
Gloucester to Maisemore – West bank at Drain from Long Brook to west bank at railway / A40 bridge
(MAI 1)
Summary description: agricultural / countryside, some residential (Minsterworth)
Possible Key Policy Drivers – Nature Conservation sites, residential / agricultural assets, A48, A40, railway
Hold the Line
Defences – earth embankment Limited erosion, extensive flood risk
Will protect residential assets – to be appraised
Advance the Line
Managed Realignment Possible Nature Conservation / habitat creation options in areas – No tidal process
benefits – but would improve flood flow – to be appraised
Would result in uncontrolled inundation of large flood risk areas – not preferred due to
risk of uncontrolled nature
Current SMP1 Policy
Lower Parting to Maisemore Weir Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries CFMP)
the current level

Gloucester to Maisemore – West bank from Railway / A40 bridge to west bank at Haw Bridge, including
River Leadon (MAI 2)
Summary description: agricultural cultural / countryside, some residential (Maisemore)
Possible Key Policy Drivers – Nature Conservation sites, residential / agricultural assets, A417, railway
Hold the Line
Defences – earth embankment Limited erosion, some flood risk
Advance the Line
No benefits, and potential environmental impacts, would result from movement of the
line.
Floodplain develops naturally – management of flood risk by non-engineering
interventions – to be appraised
Current SMP1 Policy
No policy set No policy set
CFMP Policy
CFMP Unit Policy
Policy Unit 10 (Lower Severn Corridor –
Severn CFMP)
Policy 2 – Reduce existing flood risk
management actions (accepting that
flood risk will increase over time)
Policy Unit 18 (Leadon – Severn CFMP)
Policy 2– Reduce existing flood risk
Tributaries CFMP)
the current level
Gloucester to Maisemore – East bank at Haw Bridge (B4213) to Upper Parting (MAI 3)
Summary description: agricultural cultural / countryside, some residential
Possible Key Policy Drivers – Nature Conservation sites, residential / agricultural cultural assets
Hold the Line
Defences – earth embankment Limited erosion, some flood risk
Advance the Line
Managed Realignment No tidal process benefits – but would improve flood flow
Shoreline develops naturally – management of flood risk by non-engineering
interventions – to be appraised
Current SMP1 Policy
No policy set No policy set
CFMP Policy
CFMP Unit Policy
CFMP)
Policy 3 – take actions to maintain flood
Policy Unit 3 (Gloucester Streams –
Severn CFMP)
Policy 5 – take further action to reduce
flood risk

Gloucester to Maisemore –Upper Parting to Lower Parting (left bank of parting) (MAI 4)
Summary description: Residential developments at Gloucester, infrastructure network to support the city and
heritage features
Possible Key Policy Drivers – mainly residential / agricultural cultural assets other infrastructure (roads)
Position of ‘the line’: crest of defences
Hold the Line
Defences – earth embankment and Sea wall at Quay
Limited erosion, isolated frequent flood risk
Will protect residential assets – to be appraised against CFMP
Advance the Line
No Active Intervention Not feasible
Current SMP1 Policy
Llanthony Weir to Lower Parting Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 3 (Gloucester Streams –
Severn Tidal Tributaries CFMP)
Policy 5 – Take further action to reduce
flood risk
Policy Unit 10 (Lower Severn Corridor –
Severn CFMP)
Policy 2 – Reduce existing flood risk
Policy Unit 17 (Cheltenham & NE
Gloucester – Severn CFMP)
flood risk

Gloucester to Maisemore – Alney Island (MAI 5)
Summary description: agricultural cultural / countryside
Possible Key Policy Drivers – Nature Conservation sites, agricultural cultural assets main access roads (A40
and A417)
Hold the Line
Defences – high ground and flood walls
to be appraised
Advance the Line
line.
Managed Realignment To be appraised
No Active Intervention Management of flood risk by non-engineering interventions – to be appraised
Current SMP1 Policy
Lower Parting to Maisemore Weir (west
channel)
Hold the Line
Llathony Weir to the Lower Parting (east
channel)
Hold the Line
CFMP Policy
CFMP Unit Policy
Policy Unit 3 (Gloucester Streams–
flood risk

Gloucester to Maisemore – Lower Parting to Severn Farm (MAI 6)
Summary description: agricultural cultural / countryside residential
Possible Key Policy Drivers – STW, residential, monk meadow industrial, A38, Gloucester to Sharpness
canal
Position of ‘the line’: crest of defence/top of bank
Hold the Line
Defences – high ground and embankments
to be appraised
Advance the Line
line.
Managed Realignment
No benefits would result from movement of the line. Consider locally
No Active Intervention To be appraised – consider economic drivers
Current SMP1 Policy
Lower parting to Rea Hold the Line
Rea to Windmill Hill Hold the Line (locally Do Nothing)
Windmill Hill to east end of Elmore Hold the Line
CFMP Policy
CFMP Unit Policy
flood risk

2.13 Gloucester to Sharpness Theme Area (SHAR)
Gloucester to Sharpness –Severn Farm to Wicks Green (SHA 1)
Summary description: agricultural / countryside residential
Possible Key Policy Drivers – long term habitat creation, mainly agricultural some residential, tourism (tidal
bore)
Position of ‘the line’: crest of defence
Hold the Line
Limited erosion, extensive flood risk should defences fail
to be appraised
Advance the Line
line.
Managed Realignment Long term appraisal
Current SMP1 Policy
Elmore Hold the Line
West end of Elmore to Wicksgreen Hold the Line
CFMP Policy
CFMP Unit Policy
flood risk
Tributaries)
the current level

Gloucester to Sharpness – Wicks Green to Longley Green (SHA 2)
Possible Key Policy Drivers – long term habitat creation mainly agricultural some residential
Consider adjacent units i.e. may join with SHA1
Hold the Line
Limited erosion, extensive flood risk should defences fail
to be appraised
Advance the Line
line.
Managed Realignment Long term appraisal
Current SMP1 Policy
Wicksgreen to Longley Crib Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

Gloucester to Sharpness – Longley Green to Overton Lane (SHA 3)
Possible Key Policy Drivers – mainly agricultural some residential settlements (Framilode and Priding)
Position of ‘the line’: top of bank / crest of defence
Hold the Line
to be appraised
Limited erosion, extensive flood risk from failure of defence, leaving Arlingham as a
island
Advance the Line
line.
Managed Realignment No benefits, would result from movement of the line
Current SMP1 Policy
Longley Crib to Priding Wick Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Policy Unit 5 (Frome – Severn Tidal
Tributaries)
Policy 4 – Take further action to sustain
the current level of risk into the future

Gloucester to Sharpness – Overton Lane to upstream of Hock Cliff (SHA 4)
Possible Key Policy Drivers – Nature Conservation Sites, mainly agricultural some residential settlements
Position of ‘the line’: top of bank / crest of defence
Hold the Line
to be appraised
Limited erosion, extensive flood risk from failure of defence, leaving Arlingham as a
island
Advance the Line
line.
Managed Realignment To be appraised – long term habitat creation
No Active Intervention To be appraised – consider economic drivers and geological and ecological features
Current SMP1 Policy
Priding Wick court to Longmarsh Pill Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Gloucester to Sharpness – Hock Cliff (SHA 5)
Summary description: hard geology cliff face
Possible Key Policy Drivers – Nature Conservation site (Hock Cliff)
Hold the Line
high ground
Limited erosion and flood risk to be appraised
Advance the Line No benefits, potential environmental impacts, would result from movement of the line.
Managed Realignment Not appropriate
No Active Intervention To be appraised – consider geological features and possible coastal process benefit
Current SMP1 Policy
Long Marsh Pill to Hock Ditch Do Nothing
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

Gloucester to Sharpness – downstream of Hock Cliff to Frampton Pill (SHA 6)
Summary description: mainly agricultural some isolated residential
Possible Key Policy Drivers – sharpness to Gloucester canal, agricultural some residential
Position of ‘the line’: crest of defence (defence follows canal)
Hold the Line
To be appraised - conveyance of water to adjacent Policy Units
Flood risk to adjacent Policy Units via the Canal?
Advance the Line
line.
No Active Intervention To be appraised needs to consider economic drivers and land loss
Current SMP1 Policy
Hock Cliff to Frampton Breakwater Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Tributaries)
Gloucester to Sharpness – Frampton Pill to Royal Drift outfall (SHA 7)
Summary description:
Possible Key Policy Drivers – sharpness to Gloucester canal, agricultural some residential
Position of ‘the line’: crest of defence (earth embankment)
Hold the Line
To be appraised - Flood risk is low, but could impact on the canal, WWT Slimbridge,
environmental designations if the earth embankment fails.
Advance the Line
line.
Managed Realignment
To be appraised - This is a potential habitat creation site in the short term, so MR is
very possible.
No Active Intervention To be appraised
Current SMP1 Policy
Frampton Breakwater to The Dumbles Hold the line or Retreat the Line
The Royal Drift Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Tributaries)
Policy Unit 6 (Little Avon and Cam –
the current level

Gloucester to Sharpness – Royal Drift outfall to Sharpness Docks (SHA 8)
Summary description: hard geology cliff with rock outcrops, predominant tidal process
Possible Key Policy Drivers – sharpness to Gloucester canal, agricultural some residential, docks and related
industry
Position of ‘the line’: crest of defence/toe of cliff, Nature Conservation sites
Hold the Line To be appraised - limited flood risk and erosion
Advance the Line
line.
No Active Intervention To be appraised
Current SMP1 Policy
Tites Point to South Ridge Sand Hold the Line
Sharpness (north) Hold the Line
Sharpness (west) Hold the Line (locally)
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

2.14 Sharpness to Severn Crossings Theme Area (SEV)
Sharpness to Severn Crossings –Sharpness docks to Bull Rock (SEV 1)
Summary description: earth embankments and muddy foreshore
Possible Key Policy Drivers – STW, some residential and agricultural, Docks and related infrastructure,
Nature Conservation sites
Hold the Line To be appraised - limited flood risk and erosion, flood cell links to adjacent unit
(extensive flooding)
Advance the Line
line.
Managed Realignment
To be appraised in light of impact on Berkley and Oldbury power station, could create
island
island
Current SMP1 Policy
Sharpness (west) Hold the Line (locally)
South of Sharpness Docks to Berkley Pill Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
the current level

Sharpness to Severn Crossings –Bull Rock to southern boundary of Berkley power station (SEV 2)
Summary description: higher ground with Berkley Power Station
Possible Key Policy Drivers - Berkley power station and associated infrastructure, Nature Conservation sites
Advance the Line
line.
Managed Realignment No benefits - detrimental impact on power station
No Active Intervention No benefits - detrimental impact on power station
Current SMP1 Policy
Berkley Power Station Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
the current level
Sharpness to Severn Crossings –southern boundary of Berkley power station to Oldbury Power station
(SEV 3)
Summary description: low lying and extensive flood risk
Possible Key Policy Drivers – agricultural Nature Conservation sites, impact on adjacent cells
Hold the Line To be appraised - limited erosion and extensive flood risk, flood cell links to adjacent
unit (extensive flooding)
Advance the Line
line.
Managed Realignment
island
island
Current SMP1 Policy
South of Berkley Power Station to Chapel
House
Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
the current level

Sharpness to Severn Crossings –Oldbury power station (SEV 4)
Summary description: higher ground with Oldbury Berkley Power Station
Possible Key Policy Drivers – Oldbury power station, agricultural to hinterland, tidal reservoir, Nature
Conservation sites
Position of ‘the line’: toe of cliff
Advance the Line
line.
Managed Realignment No benefits - detrimental impact on power station
No Active Intervention No benefits - detrimental impact on power station
Current SMP1 Policy
Chapel House to Oldbury Power Station Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
the current level
Sharpness to Severn Crossings – Oldbury power station to Littleton Warth (SEV 5)
Summary description: muddy foreshore, possibly accreting. Mainly agricultural
Possible Key Policy Drivers – agricultural, Nature Conservation sites, heritage, industrial, small residential
(Oldbury on Severn)
Hold the Line To be appraised - some flood risk and erosion, flood cell links to adjacent unit
(extensive flooding) Earth embankments
Advance the Line
line.
Managed Realignment To be appraised – consider economic drivers
No Active Intervention To be appraised – consider economic drivers and impact on adjacent units
Current SMP1 Policy
Oldbury to Littleton Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

Sharpness to Severn Crossings – Littleton Warth to Aust Ferry (SEV 6)
Summary description: hard geology cliff face, mainly agricultural in hinterland
Possible Key Policy Drivers – agricultural, Nature Conservation sites, M48 road crossing and services, power
line crossing and pier, small residential developments, power substation, Geological SSSI
Hold the Line To be appraised long term? - limited flood risk and erosion
Advance the Line No benefits would result from forward movement of the line.
No Active Intervention To be appraised – consider geological features longer term consider economic assets
Current SMP1 Policy
Aust Cliff to Old Passage Do Nothing (locally Hold the Line)
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level

2.15 Bristol and Severnside Theme Area (BRIS)
Bristol and Severnside – Aust Ferry (site of) to New Passage (BRIS 1)
Summary description: mainly agricultural, some infrastructure
Possible Key Policy Drivers – power line crossing, M4, M48, Severn tunnels other roads (A403), scattered
residential settlements, agricultural land; habitat creation potential; industrial assets Nature Conservation Sites
Position of ‘the line’: crest of embankments
Hold the Line To be appraised - undefended with localised earth embankments
Advance the Line
Managed Realignment To be appraised - earth embankments for potential habitat creation
To be appraised - largely undefended at present
limited erosion and flood risk
Current SMP1 Policy
Old Passage to new Passage Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Policy Unit 7 (Avonmouth / Severnside –

Bristol and Severnside – New Passage to north extent of Severnside Works (BRIS 2)
Summary description: some agricultural and key infrastructure
Possible Key Policy Drivers – Severn Beach residential area; Second Severn Crossing; power line crossing,
flood risk to M5, M48, M49, Severn tunnels other roads (A403), agricultural land; industrial assets, railway line
(defences), heritage maritime importance, waste tips, chemical processing plants, Nature Conservation sites
Position of ‘the line’: earth embankment
Hold the Line
To be appraised - significant flood risk to adjacent Policy Units
Earth embankments and sea wall
Advance the Line
Managed Realignment No benefits would result from landward movement of the line.
No Active Intervention Not appropriate
Current SMP1 Policy
New Passage to N of Severnside Works Hold the Line
CFMP Policy
CFMP Unit Policy
Tributaries)
the current level
Bristol and Severnside - North extent of Severnside Works to Avonmouth Pier
(BRIS 3)
Summary description: Avonmouth docks and related infrastructure
Possible Key Policy Drivers – Low lying shoreline, Avonmouth village; power line crossing, flood risk to M5
and M49, industrial assets, railway line (defences), heritage maritime importance, waste tips, chemical
processing plants, Nature Conservation Sites
Position of ‘the line’: crest of existing private defences
Hold the Line To be appraised - significant flood risk to adjacent Policy Units
Advance the Line To be appraised - significant private development and ownership issues
Managed Realignment Not appropriate – large area of economic importance
No Active Intervention Not appropriate – large area of economic importance
Current SMP1 Policy
Severnside Works to Mitchell’s Salt
Rhine
Hold the Line
Mitchell’s Salt Rhine to Avonmouth Pier Hold the Line
CFMP Policy
CFMP Unit Policy

Bristol and Severnside – M5 Crossing (Avon, Right Bank) to Netham Weir
(BRIS 4)
Summary description: River Avon flowing through Bristol
Possible Key Policy Drivers – port related industries, power line crossing, residential developments, flood risk
to M4 and M49, industrial assets, mixture of defences with limited coastal flooding, heritage maritime
importance, regeneration potential;
Position of ‘the line’: crest of existing defences
Hold the Line
To be appraised – significant flood risk to adjacent Policy Units. Some spring tides
can overtop the weir. Will need to cross refer to the CFMP policy area.
Advance the Line To be appraised – significant private development and ownership issues
To be appraised – very limited risk from tidal flooding or erosion. Review CFMP
Current SMP1 Policy
River Avon (Right Bank) Hold the Line
CFMP Policy
CFMP Unit Policy
Bristol Avon CFMP Sub Area 10
Markham Brook and Avonmouth)
Policy Option 4 - Already
managing the flood risk effectively,
but we may need to take further
actions to keep pace with climate
change.

Bristol and Severnside - Netham Weir to Avon road (Eastern In Gordando)
(BRIS 5)
Summary description: mixed geology (alluvium and glacial), nature interests Devonian and carboniferous
agricultural and residential developments
Possible Key Policy Drivers –Industrial and residential developments (Bristol and Eastern In Gordando),
small marina, recreational open ground, infrastructure, Nature Conservation Sites.
Position of ‘the line’: crest of existing defences/ embankments and quay walls
Hold the Line
To be appraised - significant flood risk if defences fail Review CFMP Mixture of
defences – hard walls and embankments quay walls
Advance the Line Not appropriate
Managed Realignment Locally to be appraised - Review CFMP
No Active Intervention Locally to be appraised - Review CFMP
Current SMP1 Policy
Netham Weir to South of Burgh Walls Hold the Line
Burgh Walls to Chapel Pill Do Nothing
Chapel Pill to Portbury Pier Hold the Line
CFMP Policy
CFMP Unit Policy
Bristol Avon CFMP Sub Area 10
Markham Brook and Avonmouth)
Policy Option 4 - Already
managing the flood risk effectively,
but we may need to take further
actions to keep pace with climate
change.
Bristol and Severnside- Avon road (Eastern In Gordando) to Portishead Pier
(BRIS 6)
Summary description: west bank of docks, dock related industry and infrastructure
Possible Key Policy Drivers – residential, dock related industry and related infrastructure, electricity
substation, Nature Conservation sites
Position of ‘the line’: crest of existing defences/ embankments and quay walls
Hold the Line To be appraised - significant flood risk if defences fail
Advance the Line No Benefits
No Active Intervention Not appropriate – large area of economic importance
Current SMP1 Policy
Chapel Pill to Portbury Pier Hold the Line

2.16 Portishead and Clevedon Theme Area (PORT)
Portishead and Clevedon - Portishead Pier to swimming pool (PORT 1)
Summary description: Hard geology, cliff face, wave cut platform, residential and industrial
Possible Key Policy Drivers – Portbury Docks, Nature Conservation sites, lighthouse, small residential
developments (woodlands Road), large number of Heritage features
Hold the Line To be appraised – limited erosion and flood risk
Advance the Line
No Active Intervention To be appraised – limited erosion and flood risk
Current SMP1 Policy
Old Pier to Portishead Point Do Nothing
Portishead and Clevedon - swimming pool to southern extent of esplanade road (PORT 2)
Summary description: low lying, rocking shoreline with saltmarsh. Boating lake
Possible Key Policy Drivers – recreational assets, Nature Conservation sites
Position of ‘the line’: top of wall
Hold the Line
To be appraised current defence, masonry wall – limited erosion and small area of
flood risk (1 property at risk)
Advance the Line
Managed Realignment To be appraised to landward side of the lake – need to consider additional flood
created (esplanade road needs to be appraised)
No Active Intervention To be appraised – limited erosion and small area of flood risk
Current SMP1 Policy
Woodhill Bay Hold the Line

Portishead and Clevedon - southern extent of Esplanade Road to Ladye Point (PORT 3)
Summary description: hard cliff geology with cliff top developments including residential, agricultural and
tourism areas
Possible Key Policy Drivers – Golf Course, residential, agricultural Nature Conservation sites
Hold the Line
To be appraised - largely undefended with localised coastal protection defences
Advance the Line
No Active Intervention To be appraised – limited erosion and small area of flood risk
Current SMP1 Policy
Kilkenny Bay to Redcliff Bay Do Nothing (locally Retreat the Line)
Redcliff Bay to Ladye Point Do Nothing
Portishead and Clevedon - Ladye Point to Old Church Road
(PORT 4)
Summary description: wave cut platform, hard cliff geology with cliff top developments mainly residential, with
pockets of recreational and tourism areas
Possible Key Policy Drivers – residential and other infrastructure including petrol storage depot
Position of ‘the line’: crest of defence/ toe of cliff
Hold the Line
To be appraised - defence mainly along beach road
Advance the Line
Managed Realignment To be appraised – need to consider residential and depot at risk
No Active Intervention To be appraised - limited erosion and flood risk
Current SMP1 Policy
Clevedon Hold the Line (locally Retreat the Line or
Do Nothing)

2.17 Kingston Seymour to Sand Bay Theme Area (KIN)
Kingston Seymour to Sand Bay - Old Church Road to St Thomas’ Head
(KIN 1)
Summary description: agricultural and saltmarsh, small residential areas
Possible Key Policy Drivers – M5, Nature Conservation sites, agricultural and residential. Congresbury Yeo
is potential future strategic habitat creation site
Position of ‘the line’: crest of embankment/defence
Hold the Line
To be appraised
Defences – earth embankment and hard defences
Flood risk – risk of extensive flooding if defences fail (to Western SM)
Will protect agricultural / residential assets
Advance the Line
Managed Realignment To be appraised for Congresbury Yeo (potential habitat creation site)
Not feasible – would result in large scale inundation of large area and residential
properties
Current SMP1 Policy
Wains Hill to St Thomas’s Head Hold the Line
CFMP Policy
CFMP Unit Policy
River Yeo (Congresbury Yeo)
L/B Policy Unit 8 Weston-Super-Mere
Policy 5 take further action top reduce
flood risk
River Yeo (Congresbury Yeo)
R/B Policy Unit 5 Puxton, Kenn and
Tickenham
Policy 3 – take actions to maintain flood

Kingston Seymour to Sand Bay - St Thomas’ Head to Middle Hope car park (Sand point)
(KIN 2)
Summary description: steep cliffs, hard headland
Possible Key Policy Drivers – Nature Conservation sites, agricultural and open countryside, scattered
dwellings
Hold the Line No process benefits – no defences
Advance the Line
No Active Intervention To be appraised – limited erosion and flood risk, could be island depending on
adjacent units Nature Conservation importance of maintaining geological features
Current SMP1 Policy
St Thomas’s Head to Sand Point Do Nothing
Sand Point to Middle Hope Car Park Do Nothing
Kingston Seymour to Sand Bay - Middle Hope car park to southern extent of Beach Road
(KIN 3)
Summary description: agricultural (inland) and saltmarsh/ Dunes, small residential and tourist areas (inc
caravan parks)
Possible Key Policy Drivers – Nature Conservation sites, agricultural and residential (beach road)
commercial and tourism
Position of ‘the line’: fore-dune
Hold the Line
To be appraised
Defences – managed sand dunes
Flood risk – risk of extensive flooding if defences fail (to Western S-M)
Advance the Line
Managed Realignment To be Appraised – limited benefit
Not feasible – would result in large scale inundation of large area and residential
properties
Current SMP1 Policy
Middle Hope Car Park to South Kewstoke Hold the Line

Kingston Seymour to Sand Bay - southern extent of Beach Road to Birnbeck Island
(KIN 4)
Summary description: Hard rock headland, mainly undeveloped, small residential areas
Possible Key Policy Drivers – Nature Conservation sites, roads, Lifeboat station and pier future develop
opportunity (Birnbeck Island), residential areas
Hold the Line To be appraised – limited erosion and flood risk
Advance the Line
To be appraised – limited erosion and flood risk,
Nature Conservation importance of maintaining geological features
Current SMP1 Policy
South Kewstoke to Birnbeck Island Do Nothing (locally Hold the Line)

2.18 The Holms Theme Area (HOL)
The Holms – Flat Holm (HOL 1)
Summary description: Semi natural open countryside Hard geology
Possible Key Policy Drivers – Nature Conservation sites, Military installations, listed buildings lighthouse and
pier
Hold the Line
Defences – none
Advance the Line
No Active Intervention Shoreline develops naturally, no long term flooding issue
Current SMP1 Policy
Flat Holm Do Nothing
The Holms – Step Holm (HOL 2)
Summary description: Semi natural open countryside Hard geology
Possible Key Policy Drivers – Nature Conservation sites, Military installations
Hold the Line
Defences – none
Advance the Line
No Active Intervention Shoreline develops naturally, no long term flooding issue
Current SMP1 Policy
Steep Holm Do Nothing

3. PART B: POLICY ASSESSMENT
AGAINST OBJECTIVES
3.1 Aim
This Part shows how well each of the policy options achieves the objectives for each of the
features identified around the shoreline as set out in Appendix E. It also determines the Key
Policy Drivers for each Policy Unit. These have been derived from the initial list produced for
each Policy Unit in Part A.
Strategic Environmental Assessment (SEA) related objectives are also included in this
exercise to ensure that environmental issues have been taken into account in the decision making
process. The full SEA assessment of the SMP2 options is presented in Appendix I.
3.2 Approach
The recommended approach in the Defra Guidance (Defra, 2006) for development of a
sustainable plan is through the assessment of policy options for linked Policy Units, rather than
considering locations in isolation. The aim of this stage has therefore been to assess the
appropriateness (spatially and temporally) of policy options for each Policy Unit, so that when
units are combined to form Policy Scenarios, the interaction of policy options can be seen.
Link with SEA Objectives
Many of the objectives identified in Appendix E overlap with or are the same as objectives
identified as part of the Strategic Environmental Assessment (SEA), which considers the impacts
of policies on specific ‘receptors’. There are seven receptor types against which policies must be
assessed when undertaking an SEA:
• Population and Human Health;
• Land Use, Geology and Soils, including Geomorphology and Contaminated Land;
• Biodiversity, Flora and Fauna;
• Historic Environment;
• Water;
• Air and Climate;
• Landscape.
For feature objective, the relevant SEA receptor is shown in brackets below. Some SEA
objectives do not overlap with feature objectives and these have been added to the appraisal of
other objectives for each Policy Unit. By fully integrating the SEA appraisal into the SMP2
objective appraisal, it is clear to see how environmental issues have been assessed and how this
has been taken account of in the decision making process.
The following general objectives, associated with the features in the SMP2 area have been
identified:

• Reduce the significance of the impact associated with flooding and erosion to people and
property.
(Population and Human Health)
• Reduce the significance of the impact associated with flooding and erosion to key
community, recreational and amenity facilities.
• Reduce the significance of the impact associated with flooding and erosion to industrial,
commercial and economic assets (including agricultural), and activities (including tourism)
• Reduce the significance of the impact associated with policies on marine operations and
activities
• Reduce the significance of the impact associated with flooding and erosion to critical
infrastructure
• Reduce the significance of the impact associated with flooding and erosion on maintaining
the visibility of geological exposures throughout geological SSSIs
(Land Use, Geology and Soils, including Geomorphology and Contaminated Land)
• Reduce the significance of the impact associated with flooding and erosion on maintaining
the integrity of internationally designated sites and the favourable condition of their features.
(Biodiversity, Flora and Fauna)
• Reduce the significance of the impact associated with flooding and erosion on managing
adverse impacts on nationally or locally designated conservation sites.
(Biodiversity, Flora and Fauna)
• Reduce the significance of the impact associated with flooding and erosion on scheduled
and locally, regionally and nationally important cultural historic environment sites and their
setting.
(Historic Environment)
• Avoid / minimise environmental impacts that may have long term health impacts (including
stress and anxiety associated with flood and erosion risk)
• Avoid / minimise impacts on water resources
(Water)
• Avoid / minimise impacts to water quality
(Water)
• Policy is designed to adapt to or accommodate climate change trends.
(Air and Climate)
• Avoid / minimise impacts to landscape character.
(Landscape)
As s es s ment
The significance of potential impacts has been evaluated by taking account of the status and level
of importance of receptors and the magnitude of any impacts
Importance is defined in relation to the scale of the impacts:
.

• International (at a scale greater than the UK)
• National (England or Wales or UK);
• Regional (Local Authority, groups of Local Authorities, Severn Estuary SMP2 study area);
• Local (Individual towns, villages or parishes or smaller).
Magnitude is determined on the basis of vulnerability, sensitivity, spatial and temporal incidence of
any impacts and ability of receptors to recover. In determining the significance of an impact
experience and professional judgement has been used to derive an assessment of major/minor
positive, major/minor negative or neutral impact (where it has been determined that no change
from the current situation will occur). The Project Management Group (PMG) has been
consulted on the determination of impacts and agreed the assessment.
Each policy option has been appraised against the most appropriate Key Policy Drivers, Theme
Area High Level Objectives, individual feature objectives in each Policy Unit (see Part A and
Appendix E for identification of features, issues and objectives) and SEA objective. In most
instances, consideration of whether an objective is met is based on the predicted position (e.g. the
extent of retreat), form (e.g. existence of a beach) of the estuary shoreline or extent of flood risk
from tidal inundation.
The assessment has, therefore, been carried out in three parts:
1. The impact of the policy option on the appropriate Key Policy Drivers in the Policy Unit.
This considers the economic, environmental and social impacts on the selected Key
Policy Drivers.
2. The impact of the policy option on the achievement of the objectives for each feature in
the Policy Unit. This does not differentiate between objectives of differing importance and
is used to appraise and record of the impacts of predicted shoreline evolution and flooding
on local objectives.
3. The impact of the policy option on the achievement of the Strategic Environmental
Assessment (SEA) objectives. This part of the assessment ensures that the wider
environmental impacts are assessed for each objective.

3.3 Assumptions
In developing the SMP2, a number of assumptions have had to be made about what particular
phrases (as defined within the Defra Procedural Guidance - see Section 2.3.2) actually mean in
the context of this SMP2. These are set out below with the reasons for decisions made and the
consequences of those decisions. It should be re-emphasised that this SMP2 is unique in terms of
it being totally included within a European conservation designated area, it represents the only
totally estuarine SMP, has flooding (not erosion) as the dominant management risk and straddles
two countries. For these reasons, the Guidance has needed to be clarified in places to
accommodate this.
An example is linked to the definition of “With Present Management” or what was considered to
be a Key Policy Driver (see Part A and Appendix E for initial assessment).
Property, Land Us e & Human Health
The SMP2 considers the impacts on people, human health and land use over a large area and
long time. Key Policy Drivers are those areas containing a large number of people. In this SMP2,
a large number of people is defined as being more than 10,000 in one area. With this criterion in
mind, the following settlement areas are defined as a Key Policy Driver:
Table 3.1 - Main SMP2 residential areas
• Penarth • Caldicot / Port Skewett • Bristol
• Cardiff • Lydney / Allaston/
Chepstow
• Portishead
• St. Mellons • Gloucester • Clevedon
• Newport • Quedgely • Yatton / Congresbury
Quedgely and Yatton / Congresbury are only partly within the SMP2 area, but as they contain
more than 10,000 people, they are included as Key Policy Driver towns to the list presented
above.
Critical Infras tructure
Critical infrastructure is the transportation, communication and service features that are vitally
important for the region and potentially difficult and costly to relocate. They include motorways,
railways, large electricity power stations, major electrical substations and large water treatment
works. In some more rural areas where there is only one access road into / out of a location, this
is also considered to be critical infrastructure, as there is no alternative route available (critical for
emergency access and community well being etc). Critical infrastructure is therefore a Key
Policy Driver.
Agricultural Land
A large area of the SMP2 is agricultural land. Its importance at a local, regional and national level
is recognised (see Section 4.5). There is no national policy or guidance on how important
agricultural land is in making decisions about managing the risk of coastal flooding and erosion.
Based on the lack of such guidance or policy, this SMP2 does not consider it to be a Key Policy
Driver. It has been valued based on agricultural land valuation only (see Section 5.6).

Nature Cons ervation
There are many designated nature conservation sites in the SMP2 area of local, national and
international importance (see Section 5.4). The SMP2 considers international conservation
sites are
National and local conservation sites are
Key Policy Drivers. This includes SACs, SPAs and Ramsar sites.
not considered to be Key Policy Drivers. This
includes SSSIs, NNRs, Key Wildlife Sites (KWS) and LNRs.
Lands cape Character & Vis ual Amenity
Designated and non-designated landscape sites are not considered to be Key Policy Drivers.
His toric Environment
The historic environment of the Severn Estuary is important. There is no clear guidance on how
the historic environment should be prioritised when considering coastal flooding and erosion (see
Section 4.4). This SMP2 does not consider it to be a Key Policy Driver.
Amenity & Recreation
The All-Wales Coastal Path and the intention to create a coastal path in England are Key
Policy Drivers. This is because national government in England and Wales has a clear policy in
place in relation to these features. This shows that national government considers these
recreational features to be particularly important in the management of the coast. Other
recreational features are not Key Policy Drivers.
Water Quality and Res ources
The Severn River basin district relies on groundwater and rivers for drinking water. The main
responsibility for implementing actions that secure sustainable use and availability of water falls
on a number of different sectors, including the water industry, agriculture and consumers.
Flooding and coastal erosion are very important issues, and have a separate planning process
alongside the new European Floods Directive. Because defences and control structures impact on
ecology, the River Basin Management Plan and all actions proposed need to take account of the
need for and the impact of flood and coastal erosion risk management. Catchment Flood
Management Plans and Shoreline Management Plans will take into account the objectives of the
Water Framework Directive.
3.4 Other Assumptions
Cardiff Bay Barrage
The SMP2 assumes that the Cardiff Bay Barrage remains operational throughout the entire SMP2
period (100 years) and operates as it was designed to. It does not consider risks associated with
the failure of the barrage or its infrastructure. These assumptions are consistent with those made
in the Taff and Ely Catchment Flood Management Plan (CFMP). This means that even under No
Active Intervention (NAI), the Cardiff Bay Barrage prevents coastal flooding along its length during
all three SMP2 epochs.

3.5 Water Framework Directive (WFD)
A separate assessment of the compliance of the SMP2 policies with the Water Framework
Directive (WFD) environmental objectives has been undertaken by the Environment Agency and
the results of this assessment can be found in Appendix J.
3.6 Post-consultation amendments
It should be noted that the policy options assessed in this part are those undertaken to prepare
the draft SMP2 prior to the public consultation in 2009. Following the analysis of the consultation
results, policy options may be changed, based on the feedback and comments received during
the consultation. The policies presented in the final SMP2 document could, therefore, differ from
those assessed in this Appendix. Comments received and amendments made as a result of the
public consultation are set out in Appendix B – Stakeholder Involvement.

4. Objectives Appraisal and Policy
Scenario Development
Key
Table 3.1 – Key to symbols in the assessment tables
Major positive impact (of significance to the SMP2 area)
Minor positive impact (of significance to the SMP2 area)
Minor negative impact (of significance to the SMP2 area)
Major negative impact (of significance to the SMP2 area)
N/A
Not applicable on grounds of technical feasibility (e.g. man managed realignment of
cliff face)
- No impact, or change to existing situation
SEA objective

4.1 Penarth Theme Area (PEN)
The ‘With Present Management’ policy (set by SMP1) for PEN1 – Lavernock Point to south of Forest
Road – is:
SMP1 Management Unit 0-20 20-50 50 - 100
Esplanade
Do nothing (No Active
Intervention)
Do Nothing (No Active
Intervention)
Do Nothing (No Active
Intervention)
The impact on the agreed objectives of continuing with present management policy at the Lavernock Point to
south of Forest Road shoreline can be compared with alternative management policies through the following
table:
Policy Unit - South of Forest Road (PEN1)
Advance the Line Hold the Line No Active Intervention Managed Realignment
0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
Key Policy Drivers
International Nature
Conservation sites:
Severn Estuary
Ramsar, SAC and SPA
Avoid significant impact
on integrity of
internationally
designated sites and the
favourable condition of
their features
N/A
Due to high ground / hard
geology ATL is not
technically appropriate,
option not considered
- - - N/A
High ground / hard
geology precludes
physical retreat of the line,
Hold the line will result in
coastal squeeze impacting
international sites
NAI will allow roll back of
habitats and maintain habitats
and features, however
geology/topography will limit
this
Residential:
Lower Penarth
developments
Reduce significance of
impact associated with
flooding and erosion to
people and property
N/A
geology ATL is not
- - - - - N/A
High ground / hard
geology precludes
No properties at risk of tidal
flooding now or in the future
Theme Area High
Level Objectives
Recreational Sites:
coastal path,
Cosmeston Lakes and
Country Park
Lavernock Point
facilities
key community,
recreational and
amenity facilities.
(Population and
Human Health)
N/A
geology ATL is not
- - - - - - N/A
High ground / hard
geology precludes
No assets at risk of tidal
Industrial, commercial
and economic assets:
Local commercial
assets
industrial, commercial
and economic assets
(including agricultural),
and activities (including
tourism) (Population
and Human Health)
N/A
geology ATL is not
- - - - N/A
High ground / hard
geology precludes
Pier potentially at risk Increased risk of flooding to
pier and impacts on seafront
and coastal footpath

0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
National nature
designations:
Severn Estuary and
Penarth Coast SSSI
managing adverse
impacts on nationally or
locally designated
conservation sites.
SSSIs
(Biodiversity, Flora
and Fauna)
N/A
geology ATL is not
- _ _ N/A
Severn SSSI
Rate of habitat roll back will
be limited due to cliffs
Listed Buildings and
non-designated sites
of historic interest.
impact to scheduled and
locally, regionally and
nationally important
cultural historic
environment sites and
their setting. (Historic
Environment)
N/A
geology ATL is not
_ - - - N/A
High ground / hard
geology precludes
Assuming SoP remains the
same or is increased,
features will be protected
Limited current or future
erosion or flood risk; no
impact
Maintain and enhance
Biodiversity Action Plan
habitats and species in
line with existing
targets/plans
N/A
geology ATL is not
- _ _ N/A
High ground / hard
geology precludes
Intertidal habitats will be lost
to coastal squeeze
Rate of habitat roll back
restricted by cliffs
Avoid/minimise
environmental impacts
which may have long
term health impacts
(including stress and
anxiety associated with
flood and erosion risk)
(Population and
Human Health)
N/A
geology ATL is not
- - - - - - N/A
High ground / hard
geology precludes
Assuming SoP remains the
same or is increased flood
risk will not change
Water resources are
protected (Water)
N/A
geology ATL is not
N/A N/A N/A N/A N/A N/A N/A
High ground / hard
geology precludes
No assets at risk No assets at risk
No detriment to water
quality (Water)
N/A
geology ATL is not
N/A N/A N/A N/A N/A N/A N/A
High ground / hard
geology precludes
No water bodies at risk No water bodies at risk
Policy is designed to
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
geology ATL is not
_ _ _ N/A
High ground / hard
geology precludes
Can not raise the height of
the defences indefinitely.
Natural evolution of the coast
will accommodate climate
change: possible impact to
people and property.
N/A

0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
0-20 20-50
50 -
100
Avoid detrimental
effects to landscape
character (Landscape)
N/A
geology ATL is not
- - - _ _ _ N/A
High ground / hard
geology precludes
flood risk so raising of
defences unlikely to be
required; limited change to
current landscape/views
Due to geology existing
landscape likely to remain; no
major change
Summary
Penarth Cliff line from Lavernock Point to South Forest Road is included in the Severn Estuary international
Ramsar, SAC and SPA designations; it is in the interests of the international community to a adapt shoreline
management policy scenario to meet the objectives, or have a positive impact, on these Key Policy Drivers.
From Lavernock Point to Forest Road there are no defences currently in place, the coastline is in an entirely
natural state which is favourable for the maintenance of the international nature conservation designations. A
natural shoreline has positive implications for the governmental objective to adapt our shoreline or to
accommodate climate change trends.
Erosion rates calculated for this frontage are not deemed to be significant over the 100 yr SMP2 timescale
(~10m per 100 years), al though erosion cliff slumps are evident in the area. Over the 50 to 100 year epoch
there remains uncertainty in the rate of cliff erosion and further study in cliff stability and shoreline processes
is recommended. As a result, the societal assets at Penarth, including Key Policy Drivers of residential
properties and the coastal path, are considered only potentially at risk within the 50 to 100 year epoch.

The ‘With Present Management’ policy (set by SMP1) for PEN2 – Forest Road to Penarth Head – is:
Penarth Esplanade Hold the Line Hold the Line Hold the Line
Penarth Head Hold the Line Hold the Line or retreat the line
(by cliff control)
Hold the Line or retreat the line (by cliff
control)
The impact on the agreed objectives of continuing with present management policy at the Forest Road to
Penarth Head shoreline can be compared with alternative management policies through the following table:
Policy Unit – Forest Road to Penarth Head (PEN2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Critical Infrastructure:
Lifeboat Station
critical infrastructure.
N/A
geology ATL is not
- -
Lifeboat station protected Lifeboat station potentially
affected by coastal
squeeze
Realignment could affect
lifeboat station
Conservation sites
Severn Estuary
Ramsar, SAC and SPA
on the integrity of
internationally
their features
N/A
geology ATL is not
_ - -
international sites
Natural processes
operating; roll back of
habitats will occur, but in
some places rates will be
restricted by hard geology
and existing development
Realignment will be
restricted in some places
by hard geology and
existing development
Residential Properties:
Penarth Head
Developments
including Bradford
Place
people and property
N/A
geology ATL is not
- - - - - -
No properties at current or
future risk of tidal flooding
future risk of tidal flooding -
retreating the line may
affect some properties
Theme Area High
Level Objectives
Recreational Sites:
coastal path; pier
Esplanade, Gallery and
marine recreation
key community,
recreational and amenity
facilities. (Population
and Human Health)
N/A
geology ATL is not
-
Assuming SoP maintained
or increased, features will
be protected
Flood risk will increase and
some coastal features will
be lost
Some coastal recreational
features in their current
state will be lost e.g. pier
Local commercial
assets
and economic assets
N/A
geology ATL is not
-
Existing economic assets
maintained
Some economic assets will
be lost; tourism affected
Some economic assets will
be lost; tourism affected

and Human Health)
policies on marine
operations and activities
(Population and
Human Health)
N/A
geology ATL is not
_ _ _ - - - -
No known activities No known activities No known activities
National nature
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites
SSSIs
and Fauna)
N/A
geology ATL is not
- _ _
Severn SSSI
Natural processes
operating; roll back of
habitats will occur, but rates
will be restricted by hard
geology and existing
development
Realignment will be
restricted in some places
by hard geology and
existing development
Scheduled Monument:
Penarth Churchyard
Cross.
cultural historic
Environment)
N/A
geology ATL is not
_ - - _ - -
No onshore features at
current or future risk of tidal
flooding
No onshore features at
current or future risk of tidal
flooding
Some features along coast
may be lost
line with existing
targets/plans
N/A
geology ATL is not
- - -
Coastal squeeze leading to
loss of intertidal habitats
Roll back of habitats will
occur and maintain
intertidal habitats, but rates
will be restricted by hard
geology and existing
development
Managed realignment will
ensure intertidal habitat
maintained
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
geology ATL is not
- - - - - -
Realignment may adversely
affect properties
Water resources are
protected (Water)
N/A
geology ATL is not
- -- - - - - -
No known resources No known resources No known resources
quality (Water)
N/A
geology ATL is not
- - - - - - -
No known assets at risk No known assets at risk No known assets at risk
adapt to or
accommodate climate
N/A
geology ATL is not
_ _ _

change trends.
(Air and Climate)
Natural evolution of the
coast will accommodate
climate change: possible
impact to people and
property.
accommodate climate
change
Avoid detrimental effects
to landscape character
(Landscape)
N/A
geology ATL is not
- - - - - -
flood risk so raising of
defences unlikely to be
required; limited change to
current landscape/views
Due to geology existing
landscape is likely to
remain
alter the townscape and
views
Summary
Forest Road at Penarth, to and including Penarth Head includes the shoreline Esplanade of Penarth; a
residential area and the tourism and recreational hub of the town. The area of low lying land is at erosion
and flood risk (0.1% AEP), to hold the existing line is considered to be beneficial for the societal assets
located at the Esplanade.
Erosion rates calculated for this frontage (Penarth Head cliffs) are not deemed to be significant over the 100
yr SMP2 (10m in 100 years) timescale, although erosion cliff slumps are evident in the area. Over the 50 to
100 year epoch there remains uncertainty in the rate of cliff erosion and further study in cliff stability and
shoreline processes (in connection with Cardiff Barrage impacts) is recommended here. As a result, the
societal assets at Penarth, including Key Policy Drivers of residential properties and the coastal path, are
considered only potentially at risk within the 50 to 100 year epoch.

4.2 Cardiff Theme Area (CAR)
The ‘With Present Management’ policy (set by SMP1) for CAR1 – Cardiff Bay – is:
Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Cardiff Bay
shoreline can be compared with alternative management policies through the following table:
Policy Unit – Cardiff Bay (CAR1)
Advance the Line Hold the Line No Active Intervention Managed
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Key Policy Drivers
Conservation sites:
Severn Estuary
Ramsar, SAC and
SPA
maintaining the integrity
of internationally
designated sites and
the favourable
condition of their
features (Biodiversity,
Flora and Fauna)
- - -
Impact on
internationally
protected sites
Coastal squeeze will result in
Barrage and development will restrict
rate of roll back of habitats; coastal
squeeze likely to result
Managed realignment
will allow intertidal
habitat to be
maintained – would
require the removal of
the Barrage (not
considered a feasible
choice)
Residential:
Cardiff Bay
residential
developments
people and property
(Population and
Human Health)
- - - - - - - -
No properties at
current or future risk
of tidal flooding
No properties at current or future risk
of tidal flooding
Retreating the line will
affect residential
properties – would
the Barrage (not
choice)
Industrial,
commercial and
economic assets:
Cardiff Bay
developments
and economic assets
tourism)
- - - - -
Small area of dock at
risk of erosion;
protected under ATL
Docks and other economic
assets protected from risk of
erosion
Future risk of erosion Would require the
removal of the Barrage
(not considered a
feasible choice)
Cardiff Bay Barrage,
local road and path
network within Cardiff
Bay
critical infrastructure
(Population and
Human Health)
- - - - - - - -
No infrastructure at
current or future tidal
flood risk
No infrastructure at current or
future tidal flood risk
No infrastructure at current or future
tidal flood risk
Infrastructure affected
– would require the
(not considered a
feasible choice)
Theme Area High
Level Objectives

Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Recreational Sites:
Coastal path,
Cardiff Bay
recreational
attractions
key community,
recreational and
amenity facilities.
(Population and
Human Health)
- - - - - - -
No features at risk
now or in future from
tidal flooding
No features at risk now or in
future from tidal flooding
NAI will affect recreational use of bay
in longer term
Retreating defences
will affect recreational
use of bay – would
the Barrage (not
choice)
Marine Operations:
Access to Cardiff Bay
and subsequent
docks
policies on marine
operations and
activities (Population
and Human Health)
- - - - -
Access to and
operation of Cardiff
Bay potentially
affected
No change Sea level rise will affect activities in
the Bay
Realignment will affect
activities in the Bay –
would require the
(not considered a
feasible choice)
National nature
designations:
Severn Estuary SSSI
of nationally and locally
the favourable
condition of their
features (Biodiversity,
Flora and Fauna)
- -
Advance the line will
impact on the
protected site
Coastal squeeze will impact
on the protected site
Habitat roll back not possible due to
presence of bay and barrage –
coastal squeeze will result
Development will
restrict the amount of
habitat roll back –
would require the
(not considered a
feasible choice)
impact to scheduled
and locally, regionally
and nationally
important cultural
historic environment
sites and their setting.
(Historic
Environment)
- - - - - - - -
No known assets at
risk
No known assets at risk No known assets at risk Would require the
(not considered a
feasible choice)
line with existing
targets/plans
- - -
reduce extent of
intertidal habitats
Coasts squeeze will reduce
extent of intertidal habitat
Development and barrage will restrict
ability of habitat to roll back; coastal
squeeze will occur
Managed realignment
could promote
intertidal habitat –
would require the
(not considered a
feasible choice)
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
- - - - - - -
No properties at risk
of tidal flooding now
or in the future
No properties at risk of tidal flooding
now or in the future
Realignment could
adversely affect
properties – would
the Barrage (not
choice)

Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Water resources are
protected (Water)
- - - - - - -
-
No assets at risk of
tidal flooding now or
in the future
No assets at risk of tidal flooding now
or in the future
Would require the
(not considered a
feasible choice)
quality (Water)
- - - - - - - -
No known assets at
risk of tidal flooding
now or in the future
No known assets at risk of
tidal flooding now or in the
future
No known assets at risk of tidal
Would require the
(not considered a
feasible choice)
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
- - -
Can not raise the
height of the defences
indefinitely.
the defences indefinitely;
however adequate protection
currently provided for 100
yrs.
Natural evolution of the coast will
accommodate climate change:
possible impact to people and
property.
Managed realignment
will accommodate
climate change –
would require the
(not considered a
feasible choice)
Avoid detrimental
character
(Landscape)
- - - - - -
Flood risk minimal so
limited raising of
defences likely to be
required. Limited
effect on local
landscape-
Flood risk minimal so limited
raising of defences likely to
be required. Limited effect on
local landscape
Due to limited flood risk and
presence of barrage existing
landscape likely to remain
unchanged
Managed realignment
will alter the
townscape and views
– would require the
(not considered a
feasible choice)
Summary
The Bay is afforded protection from flooding and erosion by the Barrage. Behind the barrage is a significant
amount of important economic assets including residential properties, commercial and industrial sites and
well as civil infrastructure. For the purpose of this assessment it has been assumed that under NAI, the
barrage will remain in place for the duration of the SMP2 timeframe. It will begin to deteriorate in the 50 to
100 year epoch but remain operational for the entire 100 year SMP2 period.

The ‘With Present Management’ policy (set by SMP1) for CAR2 – Barrage to River Rhymney, Rover Way
– is:
Cardiff Flats Hold the Line Hold the Line Hold the Line
North of Cardiff Flats to Pengam
Moor Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Barrage to River
Rhymney, Rover Way shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Barrage to River Rhymney, Rover Way (CAR2)
0-
20
20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Recreational Sites:
Coastal Path
key community,
facilities.
-
Assets protected from
erosion
erosion
Assets at risk from erosion Assets adversely affected
by retreat
Conservation sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
Coastal squeeze will
occur
on the protected sites
Habitats will roll back Realignment will allow
intertidal habitats to roll
back
Docks –Queen
Alexandra and Roath
and access including
railway
Docks will remain
protected from
flooding and erosion
Docks will remain protected
from flooding and erosion
Docks at risk primarily from
erosion
Realignment may affect
dock operation
Theme Area High Level
Objectives
Residential:
Small scale residential
developments
people and property
(Population and
Human Health)
- -
Limited number of
properties currently
at risk and therefore
protected under this
option
Limited number of properties
currently at risk and
therefore protected under
this option
Limited number of
properties currently at risk
of future flooding/erosion
under this option
Realignment may
adversely affect some
properties

Dockland industry
and economic assets
and Human Health)
Limited number of
assets currently at
risk and therefore
option
Limited number of assets
this option
Limited assets at risk of
future flooding/erosion
under this option
Realignment may
adversely affect local
industry operation
Marine Operations:
Docks – Queen
Alexandra
policies on marine
(Population and
Human Health)
Advancing the line
may affect dock
access/operation
Dock operations protected
from flood and erosion risk
Dock operations at risk
from future flooding and
erosion
Realignment may
adversely affect dock
operation
National nature
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
(Biodiversity, Flora and
Fauna)
-
result in loss of
intertidal habitats
occur
Realignment will maintain
intertidal habitats
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
cultural historic
Environment)
- -
Terrestrial site
protected; marine
sites potentially
adversely affected
Sites protected Sites at risk from increased
flooding/erosion
Sites potentially affected
by retreat term
line with existing
targets/plans
-
result in loss of
intertidal habitats
on habitats and species
occur
Realignment will maintain
intertidal habitats
Avoid/minimise
which may have long
term health impacts
- -

(Population and
Human Health)
Limited number of
properties currently
at risk and therefore
option
Limited number of properties
this option
Limited number of
properties currently at risk
of future flooding/erosion
under this option
Realignment may
properties
Water resources are
protected (Water)
- - - -
No resources known
to be present
No resources known to be
present
present
No resources known to
be present
quality (Water)
- - - - - - -
No assets known to
be at risk
No assets known to be at
risk
risk
risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
_ _ _
Can not raise the
indefinitely.
property.
accommodate climate
change
(Landscape)
- - - - - - - -
limited raising of
required. Limited
effect on local
landscape
Flood risk minimal so limited
raising of defences likely to
be required. Limited effect on
local landscape
Some erosion of the
coastline may occur, but
landscape unlikely to
change significantly without
additional human
intervention
alter the current industrial
landscape and views.
Subjective as to whether
this is positive or negative
impact
Summary
This unit is largely dominated by large areas of heavy industrial processes and Alexandra Dock located
directly behind the shoreline.
The Queen Alexandra and Roath Docks are in close proximity to the CAR2 shoreline and subsequent
erosion risk. The integrity of the defence preventing degradation of the docks is at risk in the 2nd epoch (20
to 50 years).

The ‘With Present Management’ policy (set by SMP1) for CAR3 – River Rhymney to Lamby Way landfill
site drain/sewer outfall – is:
River Rhymney Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the River Rhymney to
Lamby Way landfill site drain/sewer outfall shoreline can be compared with alternative management policies
through the following table:
Policy Unit – River Rhymney to Lamby Way landfill site drain / sewer outfall
(CAR3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation sites:
Severn Estuary Ramsar,
SAC and SPA
maintaining the integrity of
internationally designated
sites and the favourable
condition of their features
N/A
Advance the Line is
considered to be an
unsuitable policy for
tributaries to the Severn
Estuary, as it would reduce
in-channel flood storage
and water movement,
potentially leading to
greater flooding. It could
also trigger erosion, rather
than reduce it
- -
impact on the protected
sites
Habitats will roll back,
however space is limited in
some areas due to
development
Realignment will allow
habitats to roll back
Residential:
Residential
developments aside
River Rhymney
people and property
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Limited number of
properties at current or
future risk from tidal
flooding/erosion
Increase in flood risk to
properties; limited number
at risk from current/future
flooding/erosion
some properties
Recreational Sites:
Coastal path and local
open space
flooding and erosion to key
community, recreational
and amenity facilities.
(Population and Human
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
Recreational sites will be
protected, although limited
flood risk
at an increased risk of
flooding, although limited
vulnerable sites.
Impact will depend on the
alignment line: however
limited space in reach; so
likely to be an adverse
impact.

Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Limited infrastructure at
risk
risk
Retreating the line may
adversely affect existing
infrastructure
Objectives
National and local nature
designations:
Severn Estuary,
Penyland Quarry,
Rhymney River Section
and Rumney Quarry
SSSIs, and Howardian
LNR Reduce significance
of impact associated with
managing adverse impacts
on nationally or locally
designated conservation
sites.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
sites
Roll back of habitats may
occur, although space is
limited in some locations
allow roll back of habitats
Commercial
development aside River
Rhymney
industrial, commercial and
economic assets (including
agricultural), and activities
(including tourism)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
Limited assets at
risk/protected
Limited assets at risk Limited assets at risk ,
realignment could affect
assets
Scheduled Monuments,
non-designated sites of
historic interest. Reduce
significance of impact to
scheduled and locally,
regionally and nationally
important cultural historic
environment sites and their
setting. (Historic
Environment)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
Limited assets at risk Limited assets at risk Retreating the line may
affect existing features
habitats and species in line
with existing targets/plans
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-

habitats and species
Roll back of habitats may
occur, although space is
limited
allow roll back of habitats
Avoid/minimise
which may have long term
health impacts (including
stress and anxiety
associated with flood and
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
Limited number of
properties at risk from tidal
flooding
Increase in flood risk to
properties; limited number
at risk
some properties
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
No known resources at
risk.
risk.
risk.
quality (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - -- -
Current and old landfill
sites present; however not
at current/future erosion or
flood risk
Current and old landfill
sites present; however not
at current/future erosion or
flood risk
Retreating line may put
theses sites at increased
flood risk with implications
for water quality.
Policy is designed to adapt
to or accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - -
. Can not raise the height of
property.
accommodate climate
change
Avoid detrimental effects to
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - -

than reduce it
limited raising of defences
likely to be required.
Limited effect on local
landscape
Landscape unlikely to
change significantly
without additional human
intervention
alter the current industrial
landscape and views.
Subjective as to whether
this is positive or negative
impact
Summary
The banks of the River Rhymney where there is tidal influence are characterised by industrial and residential
developments. A significant feature of the shoreline with the Policy Unit is the Lamby Landfill Site, the
flooding and/or erosion of which will have a negative impact on sites of nature conservation and water quality
of the estuary.

4.3 Wentlooge Theme Area (WEN)
The ‘With Present Management’ policy (set by SMP1) for WEN1 – Lamby Way Landfill site drain / sewer
outfall to Sluice House Farm / Tarwick Rhyne – is:
Rumney Great Wharf Hold the line Hold the Line or retreat the line Hold the Line or retreat the line
The impact on the agreed objectives of continuing with present management policy at the Lamby Way
Landfill site drain / sewer outfall to Sluice House Farm / Tarwick Rhyne shoreline can be compared with
alternative management policies through the following table:
Policy Unit – Lamby Way Landfill site drain / sewer outfall to Sluice House Farm / Tarwick Rhyne
(WEN1)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Key Policy Drivers
Conservation sites:
Severn Estuary
Ramsar, SAC and
SPA
maintaining the
integrity of
internationally
the favourable
condition of their
features
- -
ATL will impact on the
protected sites
on the protected sites
intertidal habitats
maintained.
Intertidal habitats will
roll back and be
maintained. .
Critical
infrastructure:
Railway Line
Electricity
substations,
- -
Infrastructure
protected.
Infrastructure protected. Infrastructure at an
increased risk of flooding.
Impact will depend on
alignment line. The
assets are at least
800m inland so it is
likely they will be
protected and not
adversely impacted.
Residential:
Outskirts of Cardiff,
Newton and
Llanrhymney Reduce
significance of impact
associated with
people and property
- -
Limited no. of
properties in Cardiff at
risk from tidal flooding.
Residential properties
will be protected.
Limited no. of properties in
Cardiff at risk from tidal
flooding. Residential
properties will be protected.
Residential properties will
be at an increased risk of
flooding.
the alignment line. It
is not expected that
properties will be
adversely affected.
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Commercial
developments of
Newton
andLlanrhymney ,
Agricultural
landscape,
-
Assets protected Assets protected Assets at increased risk of
flooding
The impact will
depend on the
alignment line. It is
not expected that the
developments will be
impacted on but there
is likely to be an
adverse impact on the
agricultural land

and economic assets
and activities
(including tourism)
Recreational Sites:
Coastal path and
local open space
key community,
recreational and
amenity facilities.
(Population and
Human Health)
-
Access route along
the coast will be
protected.
Access route along the coast
will be protected.
Access route along the
coast will be at risk from
increased flooding.
Impact depends on
the realignment of the
coast. The current
access route is likely
to be adversely
affected but it could
be repositioned.
Heritage Landscape:
Scheduled
Monuments:
Relict Seawall on
Rumney Great Wharf
of historic interest
impact to scheduled
and nationally
important cultural
sites and their setting
/
- -
Limited number of
features. Structures
will be protected.
Historic landscape will
be altered
Structures and Historic
landscape will be protected,
although increased height of
defences could have a local
impact within the Gwent
Levels Historic landscape
Area
Structures will be at an
increased risk of flooding
as will the historic
landscape
Structures and
Historic landscape
may be adversely
affected by
realignment
National and local
nature designations:
managing adverse
impacts on nationally
or locally designated
conservation sites.
and Fauna)
-
For Land based sites – Gwent Levels Rumney and Peterstone SSSI
The Gwent Levels
Rumney and
Peterstone SSSI site
will be protected
The Gwent Levels Rumney
and Peterstone SSSI site will
be protected
There will be an adverse
impact on the site due to
erosion
There will be an
adverse impact on the
site due to the
realignment of the
coast
- -
For marine based sites – Severn Estuary SSSI
protected site
intertidal habitats
maintained
Intertidal habitats will
roll back and be
maintained
Biodiversity Action
Plan habitats and
species in line with
existing targets/plans
Fauna)
? ? ? ?
Unclear how the mix
of terrestrial and
marine habitats and
species will be
affected – possible
negative, neutral or
positive outcomes.
More detailed
assessment at lower
level required.
Unclear how the mix of
terrestrial and marine habitats
and species will be affected –
possible negative, neutral or
positive outcomes. More
detailed assessment at lower
level required.
terrestrial and marine
habitats and species will
be affected – possible
detailed assessment at
lower level required.
Unclear how the mix
of terrestrial and
marine habitats and
species will be
positive outcomes.
More detailed
assessment at lower
level required.
Avoid/minimise
which may have long
term health impacts
anxiety associated
with flood and erosion
risk)
-
will be protected.
Residential properties will be
protected.
flooding.
potentially affected.

(Population and
Human Health)
quality (Water)
Historic landfill sites
- - - - - - -
Historic landfill sites
are present in the
flood risk zone but are
not expected to pose
a risk to water quality.
Historic landfill sites are
present in the flood risk zone
but are not expected to pose a
risk to water quality.
Historic landfill sites are
present in the flood risk
zone but are not expected
to pose a risk to water
quality.
Retreating the line
could affect landfill
sites and water quality
Water resources are
protected (Water)
- - - -
No known impact to
water resources.
No known impact to water
resources.
No known impact to water
resources.
No known impact to
water resources.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
Can not raise the
indefinitely.
Can not raise the height of the
defences indefinitely.
property.
Managed retreat will
accommodate climate
change.
Avoid detrimental
character
(Landscape)
- - - -
Ever increasing the
height of the defence
will affect local
landscape in terms of
character (increasing
presence in the
landscape): also a
visual impact with
defences disrupting
views.
Ever increasing the height of
the defence will affect local
presence in the landscape):
also a visual impact with
defences disrupting views.
Increased frequency of
flooding may alter the local
landscape (whether
positive or negative
depends on perception).
May be a local change in
the landscape due to
potential changes in
vegetation condition and
structure.
Increased frequency
of flooding may alter
the local landscape
(whether positive or
negative depends on
perception). May be a
local change in the
landscape due to
vegetation condition
and structure.
Summary
The shoreline from Lamby Way Landfill site drain / sewer outfall to Sluice House Farm / Tarwick Rhyne are
defended by Rumney Great Wharf earth embankments and rock armouring with a residual life of 20 – 50
years.
Flood risk is extensive with a large portion of the area at risk in the first epoch (0 – 20 years); however, many
of the critical assets recognised under the Key Policy Drivers are at risk in the final epoch considered by the
SMP2 (50 – 100 years).

The ‘With Present Management’ policy (set by SMP1) for WEN2 – Sluice House Farm / Tarwick Rhyne to
west bank of River Ebbw at Maesglas railway bridge – is:
Peterstone Great Wharf Hold the line Hold the Line Hold the Line or retreat the line
Peterstone Gout to East of Outfall
Lane
Hold the line Hold the Line Hold the Line or retreat the line
East of Outfall Lane to New Gout Hold the line Hold the Line Hold the Line or retreat the line
The impact on the agreed objectives of continuing with present management policy at the Sluice House
Farm / Tarwick Rhyne to west bank of River Ebbw at Maesglas railway bridge shoreline can be compared
with alternative management policies through the following table:
Policy Unit – Sluice House Farm / Tarwick Rhyne to west bank of River Ebbw at Maesglas railway bridge
(WEN2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Critical infrastructure:
Railway Line,
Electricity substations
- -
Infrastructure protected. Infrastructure protected. Infrastructure at an
alignment line. The assets
are at least 2km inland so
they will be protected and
not adversely impacted.
Conservation sites:
SAC and SPA
- -
protected site
site
intertidal habitats
maintained.
Intertidal habitats will roll
back and be maintained.
Objectives
Residential:
Peterstone, Marshfield,
St. Brides and isolated
properties.
people and property
-
Recreational Sites:
Local open space and
facilities
Health)
- -
coast will be protected.
coast will be protected.
coast will be at risk from
increased flooding.
Impact depends on the
realignment of the coast.
The current access route
is likely to be adversely
affected but it could be
repositioned.

Agricultural landscape
economic assets
tourism)
-
/
Assets protected. Assets protected. Assets at and increased
risk of flooding.
The impact will depend on
the alignment line. It is not
expected that the
developments will be
impacted on but there is
impact on the agricultural
land.
National nature
designations:
sites.
Fauna)
- -
For Land based sites – Gwent Levels – St. Brides SSSI
The Gwent Levels –St
BridesSSSI site will be
protected
The Gwent Levels – St
Brides SSSI site will be
protected.
impact on the site resulting
from coastal erosion.
impact on the site due to
the realignment of the
coast.
-
For marine based sites – Severn Estuary SSSI
protected site
site
intertidal habitats
maintained.
back and be maintained.
line with existing
targets/plans
Fauna)
? ? ? ?
habitats and species will be
negative, neutral or positive
outcomes. More detailed
assessment at lower level
required.
Heritage Sites:
Scheduled Monuments:
St. Mary’s Churchyard
Cross at Marshfield
And Listed Buildings
cultural historic
their setting
/
- -
Terrestrial structures will
be protected. Gwent
Levels Historic Landscape
may be adversely affected
Features on landward side
of the defences and
Historic Landscape Area
will be protected. Increased
height if defences could
have local adverse impact
Structures and Historic
Landscape Area will be ay
an increased risk of
flooding.
Structures likely to be
protected as located over
2.5km inland; Historic
landscape area could be
adversely affected. .
Avoid/minimise
stress and anxiety
erosion risk)
Health)
-
be protected.
be protected.
flooding.
Isolated residential
properties may be
adversely impacted by the
realignment. There would
be loss of agricultural land
in the area.
Water resources are
protected (Water)
- - - - - - - -
present.
present.
present.
present.

quality (Water)
3 Active landfill sites
-
Landfill sites protected
from flooding.
Landfill sites protected
from flooding.
Landfill sites are at an
One of the sites is on the
coast and another within
500m so it is likely that
they would be adversely
affected.
to or accommodate
climate change trends.
(Air and Climate)
_ _ _
property.
accommodate climate
change.
(Landscape)
- - - - -
Ever increasing the height
of the defence will affect
local landscape in terms of
presence in the
landscape): also a visual
impact with defences
disrupting views.
presence in the
disrupting views.
landscape (whether
structure.
landscape (whether
structure.
Summary
This unit is dominated by agricultural landscape with a large extent of flooding under the NAI policy.
Flood risk is extensive when defences fail in the 3
rd
epoch (50 to 100 years); many of the critical assets
recognised under the Key Policy Drivers are at risk.

4.4 Newport and the River Usk Theme Area (NEW)
The ‘With Present Management’ policy (set by SMP1) for NEW1 – East bank of River Ebbw at Maesglas
railway bridge to west bank Usk at transporter bridge – is:
Ebbw River (right bank) to the
Transporter Bridge
The impact on the agreed objectives of continuing with present management policy at the East bank of River
Ebbw at Maesglas railway bridge to west bank Usk at transporter bridge shoreline can be compared with
Policy Unit – East bank of River Ebbw at Maesglas railway bridge to west bank Usk at transporter bridge (NEW
1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 -
100
Key Policy Drivers
Conservation sites:
River Usk SAC
of internationally
their features
N/A
Advance the Line is
considered to be an
Estuary, as it would
reduce in-channel flood
storage and water
movement, potentially
leading to greater
flooding. It could also
trigger erosion, rather
than reduce it
- - - - -
Usk designated for river
habitats, otter and
migratory fish ; no impact
on Usk SAC likely
Usk – roll back of habitats might
increase river corridor and
improve site for otters
very limited space in
reach: potential to
increase habitat for otter.
Docks
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
Assets protected. Assets will be at an increased
risk of flooding.
limited space in reach so
assets likely to be
affected.
Objectives
Residential
properties
people and property
N/A
Advance the Line is
considered to be an
storage and water

Health) movement, potentially
leading to greater
than reduce it
protected.
Residential properties at an
alignment line : however
impact.
Dock related and
supporting industry
and commercial
developments
and economic assets
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
Assets protected. Assets will be at an increased
risk of flooding.
limited space in reach
assets likely to be
affected.
National Nature
conservation:
Severn Estuary and
River Usk, Gwent
Levels St. Brides SSSI
managing adverse
locally designated
conservation sites.
Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
Coastal squeeze could
impact on the Severn
SSSI.
River Usk and Gwent
Levels unaffected
Natural processes will dominate;
In theory habitats will roll back
and intertidal habitats will be
maintained. However reach
developed so scope for rollback
limited. In addition terrestrial
habitats will be affected.
Gwent Levels unaffected; Usk
potential for habitat
enhancement
Severn : Impact will
depend on alignment
line: possibility to
maintain intertidal
habitats however very
limited space in reach:
Gwent Levels potentially
affected by realignment
Usk potential for habitat
enhancement
line with existing
targets/plans
Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
- - -
Loss of intertidal habitat
due to coastal squeeze.
Coastal squeeze likely to occur
because reach is developed.
Also there is a potential loss of
terrestrial habitats.
reach: terrestrial habitats
likely to be affected.
Listed buildings and
historic interest
including Transporter
Bridge
N/A
Advance the Line is
considered to be an

cultural historic
Environment)
storage and water
leading to greater
than reduce it
Historical assets
protected.
Historical assets at risk of
increased flooding.
alignment line, however
very limited space in the
reach so asset may be
adversely affected.
Avoid/minimise
which may have long
term health impacts
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets will be protected. Assets will be at an increased
risk of flooding.
Some local adverse
affects within retreated
areas. Assets behind
protected. Scope for
retreat limited by docks.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
at risk.
No resources known to be at
risk.
be at risk.
quality (Water)
Docks Way active
landfill site and several
historic landfill sites.
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets protected. Assets at an increased risk of
flooding, with implications for
water quality.
Assets all border coast
so assets are likely to be
impacted by the
managed realignment
with adverse implications
for water quality.
adapt to or accommodate
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
- - _ _ _

leading to greater
than reduce it
Can not raise the height
of the defences
indefinitely.
property.
accommodate climate
change.
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Limited erosion and flood
risk within the unit both at
present and in the future
so limited raising of
required. Limited effect on
local landscape.
V. localised increase in
frequency of flooding may alter
the local landscape (whether
positive or negative depends on
perception). May be a local
change to townscape due to
increased flooding and effect on
buildings and use of the area.
Retreating the defences
will alter the appearance
and character of the
urban area; the nature
and design of any
changes will determine
whether this is a positive
or a negative impact.
Summary
The immediate shoreline East bank of River Ebbw at Maesglas railway bridge to west bank Usk at
transporter bridge is occupied by the Newport Docks and associated infrastructure.
Flood risk is limited, but the residual life of the defences in place currently is <20 years, the failure of the
defence would have implications for the maintained integrity of the docks and continued operation of
associated industry surrounding them.

The ‘With Present Management’ policy (set by SMP1) for NEW2 – west bank of Usk at transporter bridge
to west bank of Usk at M4 crossing – is:
Transporter Bridge to the M4 (right
bank)
Hold the Line Hold the Line Hold the Line or retreat the line
The impact on the agreed objectives of continuing with present management policy at the west bank of Usk
at transporter bridge to west bank of Usk at M4 crossing shoreline can be compared with alternative
management policies through the following table:
Policy Unit – West bank of Usk at transporter bridge to west bank of Usk at M4 crossing (NEW 2)
0-20 20-
50
50 -
100
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Conservation Sites:
River Usk SAC
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - -
Usk SAC designated for
river habitat, otter and
migratory fish; no impacts
likely under HTL
Potential to increase river
corridor and enhance the site
Potential to increase
river corridor and
enhance the site
Dock related industry and
commercial
developments
(including tourism)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets will be protected
Assets are at an increased risk
of flooding
the alignment line:
however limited space
in reach of assets likely
to be affected
Roads – Usk road
crossings
Railway line
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets protected Assets are at an increased risk
of flooding.
the alignment line:

in reach assets likely to
be affected
Objectives
Residential:
Pilgwenlly and Baneswell
residential developments
and isolated residential
properties
people and property
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
protected.
alignment line : however
limited space in reach
so likely to be an
adverse impact.
Recreational Sites:
Local open space and
facilities
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
protected.
Recreational sites will be at an
the alignment line:
in reach; so likely to be
an adverse impact.
Local commercial assets
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
National Nature
conservation
designations:
Lower River Usk SSSI
sites.
Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - --
habitats, otter and
likely
Natural processes will
dominate, however limited
undeveloped space to allow
expansion of river corridor
reach: potential to
increase habitat for

otter.
Listed Buildings and non-
designated sites of
setting. (Historic
Environment)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Historical assets
protected.
increased flooding.
the alignment line,
however very limited
space in the reach so
asset may be adversely
affected.
Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
due to sea level
rise/coastal squeeze
Loss of intertidal habitat likely
to occur because reach is
developed.
reach
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Limited assets at risk;
assets will be protected.
Assets will be at an increased
risk of flooding.
Some local adverse
areas. Assets behind
retreat limited by
development.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
be at risk.
risk.
be at risk.
quality (Water)
STW Outfalls and
N/A
Advance the Line is
considered to be an

treatment works unsuitable policy for
storage and water
leading to greater
than reduce it
Limited assets present;
asset protected
Assets at an increased risk of
flooding, potential for pollution,
Asset protected
because it is assumed
that managed retreat
will not impact on the
docks or the sewage
outfalls.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
_ _ _
of the defences
indefinitely.
accommodate climate
change.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - -
Ever increasing the
may affect local
presence in the
disrupting views.
Localised increase in frequency
of flooding may alter the local
landscape (whether positive or
negative depends on
change to townscape due to
increased flooding and effect
on buildings and use of the
area.
will alter the
appearance and
character of the urban
area; the nature and
design of any changes
will determine whether
this is a positive or a
negative impact.
Summary
This unit is dominated by residential properties with a limited flood extent under the NAI policy, however, with
key societal assets in close proximity to the shoreline, the implications of flooding are substantial, with
residential, commercial properties and associated infrastructure at risk.

The ‘With Present Management’ policy (set by SMP1) for NEW3 – River Usk (both banks) at M4 crossing
to Newbridge on Usk – is:
The M4 to Caerleon (both banks) Hold the Line Hold the Line Hold the Line or retreat the line
The impact on the agreed objectives of continuing with present management policy at the River Usk (both
banks) at M4 crossing to Newbridge on Usk shoreline can be compared with alternative management
policies through the following table:
Policy Unit River Usk (both Banks) at M4 crossing to Newbridge on Usk (NEW 3)
Realignment
0-20 20-50 50 -
100
0-20 20-
50
50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
International
Nature
Conservation
Sites:
Usk SAC
Reduce
significance of
impact associated
with maintaining the
integrity of
internationally
designated sites
and the favourable
condition of their
features
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - -
likely under HTL
corridor and enhance the site
Potential to increase
river corridor and
enhance the site
Theme Area High
Level Objectives
Residential:
Caerleon,
Llanhennock,
Newbridge on Usk
and isolated
residential
properties
Reduce
significance of
impact associated
with flooding and
erosion to people
and property
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Residential properties are
not at risk of tidal flooding.
Residential properties are not at
risk of tidal flooding.
alignment line however
adequate space to
select alignment so
unlikely to be an
adverse impact.
Historic
Environment
Scheduled
Monuments,
Listed Buildings
and non-
designated sites
including
concentration at
Caerleon
Reduce
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
- - - - - - -

significance of
impact to scheduled
and locally,
regionally and
cultural historic
environment sites
and their setting
than reduce it
Historic assets protected
from tidal flooding.
Historic assets potentially at risk
adequate space to
select alignment so
unlikely to be an
adverse impact.
Recreational sites:
Local facilities
and open space
Reduce
significance of
impact associated
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Recreational assets not at
Recreational assets not at risk of
tidal flooding.
adequate space to
select alignment so
unlikely to be an
adverse impact.
Industrial,
commercial and
economic assets:
Agriculture and
local commercial
assets
Reduce
significance of
impact associated
with flooding and
erosion to
industrial,
commercial and
economic assets
(including
agricultural), and
activities (including
tourism)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
Agricultural land protected
Agricultural land at risk of tidal
flooding.
alignment line.
Potential loss of
agricultural land
Local
Infrastructure:
Local road and
path network
Reduce
significance of
impact associated
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Assets not at risk of tidal
flooding.
flooding.
adequate space to
select alignment so
unlikely to be an
adverse impact.
National nature
conservation:
N/A
Advance the Line is
- - - - - - -

Lower River Usk
SSSI
Reduce
significance of
impact associated
with managing
adverse impacts on
nationally or locally
designated
conservation sites.
(Biodiversity,
Flora and Fauna)
considered to be an
storage and water
leading to greater
than reduce it
habitats, otter and migratory
fish ; no impact likely
Natural processes will dominate,
however limited undeveloped
space to allow expansion of river
corridor
alignment line:
space in reach:
potential to increase
habitat for otter.
Maintain and
enhance
Biodiversity Action
Plan habitats and
existing
targets/plans
and Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
? ? ? ? ? ? ?
affected – possible negative,
neutral or positive
required.
Unclear how the mix of terrestrial
and marine habitats and species
will be affected – possible
negative, neutral or positive
required.
habitats and species
will be affected –
possible negative,
neutral or positive
outcomes. More
Avoid/minimise
environmental
impacts which may
have long term
health impacts
(including stress
and anxiety
associated with
flood and erosion
risk)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Limited properties at risk
Limited properties at risk from
tidal flooding.
alignment line; effects
unlikely.
Water resources
are protected
(Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
at risk.
risk.
be at risk.
No detriment to
water quality
(Water)
N/A
Advance the Line is
considered to be an
- -

Ponthir STW,
active and historic
landfill sites
storage and water
leading to greater
than reduce it
STW and other features
protected
Asset at increased risk from tidal
flooding.
adequate space to
select alignment so
unlikely to be an
adverse impact on
STW.
Policy is designed
to adapt to or
accommodate
climate change
trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
_ _ _
property.
accommodate climate
change.
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - -
Ever increasing the height of
the defence will affect local
Increased frequency of flooding
may alter the local landscape
(whether positive or negative
depends on perception). May be
a local change to townscape due
to increased flooding and effect
on buildings and use of the area.
Retreating the
defences will alter the
appearance and
negative impact.
Summary
The shoreline of the River Usk (both banks) at M4 crossing to Newbridge on Usk is primarily used as
agricultural land with associated small residential developments and the larger developments of Caerleon,
Llanhennock and Newbridge on Usk. Caerleon is recognised by numerous national designations for the
historic environment preserved there, many of the recognised sites are on high ground and not at flood risk.
The River Wye is recognised as an SAC, an international nature conservation designation.

The ‘With Present Management’ policy (set by SMP1) for NEW4 – east bank of Usk at M4 crossing to
Spytty Pill, north of A48 crossing – is:
M4 to Spytty Pill (left bank) Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the east bank of Usk
at M4 crossing to Spytty Pill, north of A48 crossing shoreline can be compared with alternative management
Policy Unit – East Bank of Usk at M4 crossing to Spytty Pill, North of A48 crossing (NEW 4)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Usk crossings including
M4, Railway
Gwent Police station
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Infrastructure protected.
Assets are at an increased
risk of flooding.
assets likely to be affected
Conservation Sites:
Usk SAC
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
likely under HTL
corridor and enhance the
site
corridor and enhance the
site
Objectives
Residential:
St. Julian’s, Barnardtown
and Somerton
people and property
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
protected.
Residential properties at
risk from flooding.
alignment line; however
southern section of the
reach so properties likely

to be impacted.
Recreational Sites:
Local facilities and open
space
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Local recreational sites will
be protected.
flooding.
alignment line. Space in
the reach is limited so
there is likely to be an
adverse impact.
Local commercial
developments and
industry
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Assets will be protected. Assets will be at an
adverse impact.
Infrastructure:
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
National nature
conservation:
Lower Usk SSSI
sites.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
habitats, otter and
likely
dominate, however limited
undeveloped space to
allow expansion of river
corridor
reach: potential to increase
habitat for otter.
historic interest
N/A
Advance the Line is
considered to be an

cultural historic
setting. (Historic
Environment)
and water movement,
than reduce it
Historical assets protected. Historical assets at risk of
increased flooding.
adversely affected.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
? ? ? ? ? ? ?
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Assets protected. Assets at an increased risk
of flooding.
reach: assets likely to be
affected.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
at risk.
at risk.
at risk.
quality (Water)
Sewage treatment outfall
Historic landfill site
N/A
Advance the Line is
considered to be an
and water movement,

than reduce it
Assets protected.
Assets at an increased risk
of flooding, potential for
pollution,
Asset protected because it
is assumed that managed
retreat will not impact on
the sewage outfall or
historic landfill site.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
_ _ _
property.
accommodate climate
change.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
Increasing the height of the
defence will affect local
presence in the
disrupting views.
landscape (whether
May be a local change to
townscape due to
increased flooding and
effect on buildings and use
of the area.
and character of the urban
design of any changes will
determine whether this is a
positive or a negative
impact.
Summary
Advance the line has not been assessed due to the adverse impact on fluvial flood risk from restricting
channel flow capacity.

The ‘With Present Management’ policy (set by SMP1) for NEW5 – Spytty Pill, north of A48 crossing to
Uskmouth Power station – is:
Spytty Pill to Uskmouth Power
Station (left bank)
The impact on the agreed objectives of continuing with present management policy at the Spytty Pill, north of
A48 crossing to Uskmouth Power station point shoreline can be compared with alternative management
Policy Unit – Spytty Pill, north of Uskmouth Power station point (NEW 5)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
SAC and SPA, Usk SAC
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - -
Severn N3K site outside
policy unit – possible
impacts resulting from HTL
in this unit
Usk SAC – some loss of
intertidal habitats as a
result of sea level rise
however this is considered
unlike to affect the SAC
In theory habitats will roll
back
Intertidal habitats of
Severn will be maintained
and possible benefits for
Usk SAC. However reach
developed so scope for
rollback limited. .
very limited space in reach
Industrial developments
Usk power station
Surrounding industry
(including tourism)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
Industrial assets will be
protected.
Industrial assets will be at
flooding.
alignment line: space in
the reach is limited
therefore there may be an
adverse impact.
Uskmouth Power Station
and associated
infrastructure
Nash STW
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -

Assets protected.
of flooding.
adverse impact.
Objectives
Residential:
properties
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
protected.
at an increased risk from
flooding.
adverse impact.
Recreational site:
Local facilities and open
space
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
protected.
at an increased risk from
flooding.
adverse impact.
Infrastructure:
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
National nature
conservation:
Lower Usk SSSI
sites.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
occur.
back and intertidal habitats
will be maintained.
However reach developed
so scope for rollback
limited. In addition
terrestrial habitats will be

affected.
historic interest
including Transporter
Bridge
cultural historic
setting. (Historic
Environment)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Historical assets protected. Historical assets at risk of
increased flooding.
adversely affected.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Coastal squeeze likely to
occur because reach is
developed. Also there is a
potential loss of terrestrial
habitats.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
protected.
at risk from flooding.
reach, so likely to be an
adverse impact.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
at risk.
at risk.
at risk.
quality (Water)
Nash STW
3 active landfill sites.
N/A
Advance the Line is
considered to be an
- -

and water movement,
than reduce it
STW and landfill sites
protected.
STW and landfill sites at
flooding, with increased
risk of pollution.
reach, so may be an
adverse impact because of
proximity of sites.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - -
property.
accommodate climate
change.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
presence in the
disrupting views.
landscape (whether
townscape due to
of the area.
impact.
Summary
Uskmouth Power Station is a Key Policy Driver within the Policy Unit. The base of the Transport Bridge is
also located within the Unit, its heritage and landscape value within the city of Newport mean to preserve it
from flooding and erosion would be positive.

4.5 Caldicot Levels Theme Area (CALD)
The ‘With Present Management’ policy (set by SMP1) for CALD1 – Uskmouth Power Station point to
Sudbrook Point, north of M4 Severn Crossing – is:
Uskmouth Power Station to
Saltmarsh Farm
Hold the Line (locally retreat) Hold the Line Hold the Line or retreat the line
Saltmarsh Farm to Gold Cliff Hold the Line Hold the Line (or locally retreat
the line)
Hold the Line or retreat the line
Gold Cliff to Cold Harbour Pill Hold the Line Hold the Line Hold the Line or retreat the line
Cold Harbour Pill to West Pill Hold the Line Hold the Line Hold the Line or retreat the line
West Pill to West of Sudbrook Point Hold the Line Hold the Line Hold the Line or retreat the line
The impact on the agreed objectives of continuing with present management policy at the Uskmouth Power
Station point to Sudbrook Point, north of M4 Severn Crossing shoreline can be compared with alternative
Policy Unit – Uskmouth Power Station point to Sudbrook Point, north of M4 Severn Crossing (CALD 1)
0-
20
20-
50
50 -
100
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Industrial,
commercial and
economic assets:
Llanwern
Steelworks
Reduce significance
of impact associated
with flooding and
erosion to critical
infrastructure.
Reduce significance
with flooding and
erosion to industrial,
commercial and
economic assets and
activities
- -
Assets will be
protected.
Assets will be protected. Assets will be at an increased risk of flooding. Impact will depend on
the reach is not very
limited due to land
being used for
agriculture. There may
be an adverse impact.
Conservation sites
Severn Estuary
Ramsar, SAC and
SPA
Reduce significance
integrity of
internationally
the favourable
condition of their
features
- -
Coastal squeeze
will occur.
occur.
Habitats will roll back, intertidal habitats
maintained; however potentially some loss of
intertidal habitats
maintained; however
potentially some loss of
Residential:
Caldicot
- -

Reduce significance
with flooding and
erosion to people and
property
Residential
properties
protected.
protected.
Residential properties at an increased risk from
flooding.
adequate space to
select alignment so
larger residential
settlements are likely to
be protected. Isolated
properties may be
adversely impacted.
Critical
infrastructure:
Railway, Electricity
transmission
network, Sewerage
network
and M4
Gwent constabulary
emergency
response centres
Reduce significance
with flooding and
erosion to critical
infrastructure.
- -
Infrastructure
protected.
Infrastructure protected. Infrastructure at an increased risk of flooding. Impact will depend on
there is adequate space
to select alignment so
critical infrastructure is
likely to be protected as
it is all located at a
distance from the coast
(with the exception of
two electricity
substations at Magnor
Pill).
Theme Area High
Level Objectives
Heritage Landscape
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
Gwent levels
historic landscape
13 SAMS including
a cluster around
Magnor and Undy
Listed buildings in
several villages
across the area.
Reduce significance
of impact to
scheduled and
cultural historic
their setting
-
Historic landscape
and assets
protected.
Historic landscape and
assets protected.
Potentially some local
adverse effects from
increased height of
defences
Historic landscape and assets at an increased
risk of flooding.
the alignment line: not
very limited so there
may be an adverse
impact on the historic
landscape.
Residential:
Magor, Undy and
properties
Reduce significance
with flooding and
- - - -

property
Recreational sites:
Local facilities,
open space and
footpath network
Coastal footpath
and network of
footpaths across
Caldicot levels
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
-
Recreational sites
including the
coastal footpath
will be protected.
Recreational sites
including the coastal
footpath will be
protected.
Recreational sites including the coastal
footpath will be at an increased risk of flooding.
adequate space to
select alignment so
coastal footpath is likely
to be adversely
impacted.
Industrial,
commercial and
economic assets:
Local commercial
assets
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
and Human Health)
-
Agriculture is
primary land use;
land protected
Agricultural land
protected
Agricultural land at risk of flooding and erosion Impact will depend on
alignment line; some
land likely to be
affected.
Infrastructure:
Local road and path
network
Reduce significance
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
- - - - -
Reduce significance
with managing
adverse impacts on
designated
conservation sites.
and Fauna)
-
For Land based sites – Gwent Levels – Nash and Goldcliff, Whitson, Redwick and Llandevenny and Magor and Undy
SSSIs
Sites will be
protected from
coastal flooding.
Sites will be protected
from coastal flooding.
Sites will be at an increased risk from coastal
flooding.
adequate space to
select alignment so
impact on Gwent levels
SSSIs.
- -
For Marine based sites – Severn Estuary SSSI
Coastal squeeze
will occur
occur.
Habitats will roll back, intertidal habitats
maintained;.
intertidal habitats
maintained;
Maintain and
enhance Biodiversity
Action Plan habitats
and species in line
with existing
targets/plans
and Fauna)
-
-
-
Coastal squeeze Coastal squeeze will Loss of terrestrial habitat on the Caldicot levels; Loss of terrestrial

will
occur//terrestrial
habitat will be
gained.
occur. intertidal habitats maintained. habitats on the Caldicot
levels.
Avoid/minimise
environmental
impacts which may
have long term
health impacts
anxiety associated
with flood and
erosion risk)
(Population and
Human Health)
- -
Residential
properties
protected.
protected.
Residential properties at an increased risk from
flooding.
adequate space to
select alignment so
larger residential
settlements are likely to
be protected. Isolated
properties may be
adversely impacted.
Water resources are
protected (Water)
Usk Devonian Old
Red Sandstone
SPZ. No impact
Usk Devonian Old Red
Sandstone SPZ. No
impact
SPZ is at increased risk of salinisation SPZ is at increased risk
of salinisation.
No detriment to
water quality (Water)
Source protection
zone
Uskmouth power
station historic
landfill site
-
Assets protected. Assets protected. Assets at an increased risk of flooding. SPZ is at increased risk
of saline intruction.
adapt to or
accommodate
climate change
trends.
(Air and Climate)
- - -
Can not raise the
height of the
defences
indefinitely.
of the defences
indefinitely.
accommodate climate change: possible impact
to people and property.
accommodate climate
change.
Avoid detrimental
character
(Landscape)
- - - -
Ever increasing the
height of the
defence will affect
local landscape in
terms of character
(increasing
presence in the
landscape): also a
visual impact with
defences
disrupting views.
Ever increasing the
will affect local
presence in the
landscape): also a
visual impact with
defences disrupting
views.
Increased frequency of flooding may alter the
local landscape (whether positive or negative
depends on perception). May be a local
change to townscape due to increased flooding
and effect on buildings and use of the area.
will alter the
appearance and
negative impact.
Summary
This unit is dominated by agricultural landscape and the Llanwern Steelworks with a large extent of flooding
under the NAI policy.
The 0 to 20 year flood cell from the shoreline at CALD1 includes sections of source protection zone 3. Saline
intrusion from flooding may alter chemical status of groundwater.

The ‘With Present Management’ policy (set by SMP1) for CALD2 – Sudbrook Point, north of M4 Severn
Crossing to Black Rock at Black Rock Road – is:
Sudbrook Point to Black Rock Do nothing (locally hold) Do Nothing, locally Hold the Line
or Retreat the Line
or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Sudbrook Point,
north of M4 Severn Crossing to Black Rock at Black Rock Road shoreline can be compared with alternative
Policy Unit – Sudbrook Point, north of M4 Severn Crossing to Black Rock at Black Rock Road (CALD 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Electricity transmission
network
- - - - - - -
N/A
High ground / hard geology
precludes physical retreat
of the line, option not
considered
Critical infrastructure not at
risk from flooding.
risk from flooding.
risk from flooding.
Conservation sites
SAC and SPA
- -
N/A
considered
occur.
occur.
will be maintained.
However reach is a high
ground and hard geology
so scope for roll back
limited.
Residential:
Portskewett
people and property
Health)
- - - - - - - N/A
considered
not at risk.
not at risk.
not at risk.
Objectives
Heritage Landscape
historic interest
cultural historic
setting
- - - - - - - N/A
considered
No historical assets at risk, No historical assets at risk, No historical assets at risk,
Residential:
properties
people and property
- - - - - - - N/A
considered
not at risk.
not at risk.
not at risk.

Health)
Recreational Sites:
Local facilities, open
space and footpath
network
Health)
- - - - - - - N/A
considered
Recreational sites
footpath are not at risk.
Recreational sites
Recreational sites
(including tourism)
Health)
- - - - - - - N/A
considered
Assets not at risk. Assets not at risk. Assets not at risk.
Infrastructure:
Local road and path
network
Health)
- - - - - - - N/A
considered
No assets at risk No assets at risk No assets at risk
Severn Estuary SSSI
sites.
Fauna)
- -
N/A
considered
Coastal squeeze will occur Coastal squeeze will
occur.
will be maintained.
limited.
Fauna)
-
-
-
-
N/A
considered
occur.
occur.
In theory coastal habitats
will roll back and intertidal
habitats will be maintained.
limited.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
- - - - - - -
N/A
considered
Recreational sites
Recreational sites
Recreational sites

footpath are not at risk. footpath are not at risk. footpath are not at risk.
Water resources are
protected (Water)
- - - - -
-
N/A
considered
Sandstone SPZ. No impact
SPZ at increased risk of
saline intruction
quality (Water)
- - - - - N/A
considered
SPZ at increased risk of
saline intrusion
change trends.
(Air and Climate)
_ _ _ N/A
considered
property.
landscape character
(Landscape)
-o - - - - - N/A
considered
presence in the
disrupting views.
Limited flood and erosion
risk in this unit so
significant increase in
height of defences not
required; limited impact.
Unit not at significant
flood/erosion risk;
change
Summary
The majority of this area is high ground and is not impacted by flood or erosion risk; as a result the policies
appraised do not significantly impact on the objectives or Key Policy Drivers.

The ‘With Present Management’ policy (set by SMP1) for CALD3 – Black Rock at Black Rock Road to
west bank of River Wye at Park Redding, Thornwell – is:
Sudbrook Point to Black Rock Hold the Line / Do nothing Hold the Line or Retreat the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Black Rock at
Black Rock Road to west bank of River Wye at Park Redding, Thornwell shoreline can be compared with
Policy Unit – Caldicot – Black Rock at Black Rock Road to west bank of River Wye at Park Redding,
Thornwell (CALD 3)
Advance the
Line
Hold the Line No Active Intervention Managed
Realignment
0-
20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Electricity
transmission network,
M48, Railway line
- - -
Infrastructure
protected.
Infrastructure protected. Infrastructure at risk from flooding. Impact will depend on
alignment line:
however adequate
space to select
alignment so unlikely
to be an adverse
impact.
Conservation sites
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
/ /
Coastal
squeeze will
occur.
Coastal squeeze will occur. Habitats will roll back, intertidal
habitats maintained: however
potentially some loss of terrestrial
habitats.
Intertidal habitats
maintained: however
potentially some loss
of terrestrial habitats.
Objectives
Heritage Landscape
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
cultural historic
their setting
Historic
structures
protected from
flooding;
Historic
Landscape
potentially
affected.
Historic structures protected
from tidal flooding; Historic
Landscape protected
Historic structures potentially at risk
from tidal flooding; Historic Landscape
potentially affected
Historic Landscape
potentially affected.
Residential:
Thornwell, Mathern
and isolated properties
people and property
- - -
Residential
properties
protected.
protected.
Residential properties are at risk from
flooding.
alignment line:
however adequate
space to select
alignment, so unlikely
to be adverse impact.

Recreational sites:
space and footpath
network
key community,
and Human Health)
- -
Recreational
sites protected.
Recreational sites protected. Recreational sites are at an increased
risk of flooding.
alignment line.
Footpath network may
be adversely
impacted.
Local commercial
assets
Agricultural land
and economic assets
and Human Health)
- -
Land use
predominantly
agricultural.
Agricultural
assets will be
protected.
Land use predominantly
agricultural. Agricultural
Agricultural assets will be at an
alignment line:
however adequate
space to select
alignment, but
agricultural land may
be adversely
impacted.
Infrastructure:
Local road and path
network
(Population and
Human Health)
- - - - -
managing adverse
locally designated
conservation sites.
Fauna)
- - - - - - - -
For Land based sites – Bushy Close SSSI, River Wye (Lower Wye) SSSI
Sites not at risk
of tidal flooding
via this unit.
Sites not at risk of tidal
flooding via this unit.
Sites unaffected by increased flood
risk .
alignment line:
however adequate
space to select
alignment so unlikely
to be an adverse
impact on the SSSIs.
- -
For Marine based sites – Severn Estuary SSSI
Coastal
squeeze will
occur.
Coastal squeeze will occur. Habitats will roll back, intertidal
habitats maintained; however
potentially some loss of terrestrial
habitats.
intertidal habitats
maintained; however
potentially some loss
line with existing
targets/plans
Fauna)
-
-
-
Coastal
squeeze will
occur, loss of
intertidal
habitats
Coastal squeeze will occur,
loss of intertidal habitats .
Loss of terrestrial habitats on the
Caldicot levels; intertidal habitats
maintained.
Loss of terrestrial
habitats on the
Caldicot levels;
intertidal habitats
maintained. .
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
- - -
Residential
properties
protected.
protected.
Residential properties are at risk from
flooding.
alignment line:
however adequate
space to select
alignment, so unlikely
to be adverse impact.
Water resources are
protected (Water) - - - - - - - -

No resources
known to be at
risk.
risk.
No resources known to be at risk.
No resources known
to be at risk.
quality (Water)
- - - - - - - -
No risk to water
quality.
No risk to water quality. No risk to water quality.
No risk to water
quality.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - _
Can not raise
the height of the
defences
indefinitely.
property.
(Landscape)
- -
- - -
Increasing the
height of the
defence will
affect local
landscape in
terms of
character
(increasing
presence in the
landscape): also
a visual impact
with defences
disrupting
views.
Increased frequency of flooding may
alter the local landscape (whether
positive or negative depends on
perception). May be a local change to
townscape due to increased flooding
and effect on buildings and use of the
area.
Retreating the
defences will alter the
appearance and
design of any
changes will
determine whether
negative impact.
Summary
The 0 to 20 year flood cell from the shoreline at CALD3 includes sections of source protection zone 3. Saline
intrusion from flooding may alter chemical status of groundwater

4.6 Chepstow and the River Wye Theme Area (WYE)
The ‘With Present Management’ policy (set by SMP1) for WYE1 – west bank Wye at Park Redding,
Thornwell to west bank River Wye at Alcove Wood, Chepstow – is:
Chepstow from Thornwell to Alcove
Wood
Do nothing (locally hold) Do Nothing, locally Hold the Line Do Nothing, locally Hold the Line
The impact on the agreed objectives of continuing with present management policy at the west bank Wye at
Park Redding, Thornwell to west bank River Wye at Alcove Wood, Chepstow, shoreline can be compared
with alternative management policies through the following table:
Wye – West bank Wye at Park Redding, Thornwell to west bank River Wye at Alcove Wood, Chepstow (WYE
1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Residential:
Chepstow and Bulwark
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Residential properties not
at risk, from current or
future flood or erosion.
at risk from current or
future flood or erosion risk.
adverse impact on some
properties.
Railway, A48 crossing
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
Critical infrastructure is not
critical infrastructure is not
expected to be impacted.
Conservation sites:
River Wye SAC
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Features of River Wye
SAC not impacted by tidal
flooding; site designated
flooding; natural processes
Realignment may offer
opportunities to enhance
the site

for river habitats, otter and
migratory fish species no
impact to habitats or
species for which the site
is designated.
will operate; no impact to
habitats or species for
which the site is
designated..
Objectives
Recreational sites:
Local facilities and
footpath network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Recreational sites not
impacted by current or
future tidal flooding and
erosion.
Recreational sites not
impacted by current or
future tidal flooding and
erosion.
alignment line. There is
limited space for
realignment so there may
be adverse impacts.
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Assets not impacted by
flooding and erosion..
Assets not impacted by
flooding and erosion.
limited space for
be adverse impacts.
Infrastructure:
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
National nature
conservation:
Lower Wye SSSI
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Site designated for river
habitat, otter and migratory
fish species. Lower Wye
SSSI is not impacted by
HTL policy.
operate; NAI unlikely to
affect site
alignment line. May offer
opportunities for
enhancement
N/A
Advance the Line is
- - - - - - -

designated sites of
setting. (Historic
Environment)
considered to be an
and water movement,
than reduce it
Historical assets are not at
current or future risk from
tidal flooding/erosion.
current or future risk from
limited space for
be adverse impacts on St
Peters Cave or Bulwarks
camp SAMs or listed
building in the Chepstow
area.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Habitats not at current or
flooding/erosion
Habitats not at current or
flooding/erosion
alignment line. If river
channel is widened this is
likely to have an adverse
impact on the terrestrial or
riverine habitats of the
area.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
at risk.
at risk.
adverse impact.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Water resources are not at
risk.
risk.
risk.
quality (Water)
N/A
Advance the Line is
considered to be an
- - - - - - -

and water movement,
than reduce it
Water quality is not at risk. Water quality is not at risk. Water quality is not at risk.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - _
property.
accommodate climate
change.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
. Limited current or future
flood/erosion risk means
there is no requirement to
increase the height of
defences
Landscape is unlikely to
change
impact.
Summary
The West bank Wye at Park Redding, Thornwell to west bank River Wye at Alcove Wood, Chepstow
includes a high density of residential property and associated assets of commercial property and recreation.
The defences protecting the present assets from the minimal flood risk are in good condition with a residual
life of 20 – 50 years.

The ‘With Present Management’ policy (set by SMP1) for WYE2 – west bank River Wye at Alcove Wood,
Chepstow to Bigsweir Bridge + east bank River Wye at Bigsweir Bridge to Bridge Street bridge,
Sedbury, – is:
Alcove Wood to Tintern Abbey,
Tintern Abbey to Chapel House
Wood
The impact on the agreed objectives of continuing with present management policy at the west bank River
Wye at Alcove Wood, Chepstow to Bigsweir Bridge + east bank River Wye at Bigsweir Bridge to Bridge
Street bridge, Sedbury, shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Wye – west bank River Wye at Alcove Wood, Chepstow to Bigsweir Bridge + east bank River
Wye at Bigsweir Bridge to Bridge Street bridge, Sedbury (WYE 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites
Lower Wye Valley SAC
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
flooding; site designated
for river habitats, otter and
is designated.
flooding; natural processes
will operate, no impact to
which the site is
designated.
Residential:
Chepstow,
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
N/A
considered
not at current or future risk
of flooding/erosion.
Objectives
Heritage Landscape:
Tintern Abbey
designated sites of
historic interest.
nationally important cultural
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - N/A
considered

historic environment sites
and their setting
than reduce it
current or future risk of
flooding/erosion.
flooding/erosion.
Residential:
properties
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
Infrastructure:
space and footpath
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
at current or future risk of
flooding/erosion.
at current or future risk of
flooding/erosion.
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
Assets are not at current or
future risk of
flooding/erosion
Assets are not at current or
future risk of
flooding/erosion
Blackcliff-Wyndcliff SSSI
maintaining the visibility of
geological exposures
throughout geological
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
SSSI is not at current or
future risk of
flooding/erosion
SSSI is not at current or
future risk of
flooding/erosion
National and local
conservation sites:
Lower Wye Valley,
Barbadoes Hill Meadows,
Cleddon Shoots
Woodland and Wye Valley
Bat Site SSSIs, plus The
N/A
Advance the Line is
considered to be an
- - - - - - N/A
considered

Hudnalls NNR.
sites.
Fauna)
and water movement,
than reduce it
Features of Wye SSSI not
impacted by flooding.
Other Sites not at current
or future risk of
flooding/erosion
impacted by flooding.
Other Sites not at current
or future risk of
flooding/erosion
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
Habitats and species not at
flooding/erosion.
flooding/erosion.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
of flooding/erosion
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
Water resources are not
known to be at risk.
quality (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
N/A
considered
Water quality is not known
to be at risk.
to be at risk.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
- - _
N/A
considered

and water movement,
than reduce it
property.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
defences
change
Summary

The ‘With Present Management’ policy (set by SMP1) for WYE3 – east bank River Wye at Bridge Street
bridge, Sedbury to Sedbury STW – is:
Alcove Wood to Tintern Abbey,
Tintern Abbey to Chapel House
Wood
Chapel House Wood to Sedbury
Sewage Works
Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the east bank River
Wye at Bridge Street bridge, Sedbury to Sedbury STW shoreline can be compared with alternative
Policy Unit – Wye – east bank River Wye at Bridge Street bridge, Sedbury to Sedbury STW (WYE 3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
River Wye SAC
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
Features of SAC not
impacted by tidal flooding;
site designated for river
habitats, otter and
is designated.
Features of SAC not
natural processes will
operate, no impact to
which the site is
designated.
Railway, A48, Sewage
Treatment Works
and crossing
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
future flooding/erosion .
Objectives
Residential:
Tutshill and Sedbury
people and property
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - N/A
considered

than reduce it
not at risk from current or
future flooding/erosion.
Recreational sites:
space and footpath
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
N/A
considered
Recreational sites are not
Recreational sites are not
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
N/A
considered
Assets are not at risk from
current or future
flooding/erosion.
current or future
flooding/erosion
Infrastructure:
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
National Nature
conservation:
Lower Wye Valley SSSI
sites.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
No impact to habitats or
is designated.
which the site is
designated.
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - N/A
considered

setting. (Historic
Environment)
than reduce it
risk from current or future
flooding/erosion..
flooding/erosion..
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
flooding/erosion..
flooding/erosion..
Avoid/minimise
stress and anxiety
erosion risk)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
future flooding/erosion..
future flooding/erosion..
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
quality (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - N/A
considered
to be at risk.
to be at risk.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
- - _ N/A
considered

than reduce it
Cannot raise the height of
property.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- = - - - - N/A
considered
defences
change
Summary

The ‘With Present Management’ policy (set by SMP1) for WYE4 – east bank River Wye at Sedbury STW
to End of Beachley Road, Beachley Point – is:
Sedbury Sewage Works to north
Beachley
Beachley Point Do nothing Do Nothing Do Nothing or retreat the line
The impact on the agreed objectives of continuing with present management policy at the east bank River
Wye at Sedbury STW to End of Beachley Road, Beachley Point shoreline can be compared with alternative
Policy Unit – Wye – east bank River Wye at Sedbury STW to End of Beachley Road, Beachley Point (WYE 4)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites
River Wye SAC
- - - - - - N/A
considered
River Wye SAC will be
adversely affected.
Features of SAC not
site designated for river
habitats, otter and
is designated.
Features of SAC not
natural processes will
which the site is
designated.
M48 Crossing
- - - - - - - N/A
considered
Objectives
Residential
developments:
Beachley Head
people and property
Health)
- - - - - - - N/A
considered
(including tourism)
Health)
- - - - - - - N/A
considered
current or future
flooding/erosion
current or future
flooding/erosion
current or future
flooding/erosion
Infrastructure:
Local road and path
network
- - - - - - - N/A

Health)
considered
National nature
conservation:
Pennsylvania Fields and
sites.
Fauna)
- - -
N/A
considered
SSSI (Pennsylvania Fields) brackish pasture land requires periodic inundation
Flooding to SSSI
potentially reduced
Flooding to SSSI
potentially reduced
Natural processes
predominate, site will
evolve and interest features
should be protected
- - - - - - -
. No impact to habitats or
is designated..
impacted by flooding; no
impact on habitats or
species for which the site is
designated
setting. (Historic
Environment)
- - - - - - - N/A
considered
flooding/erosion
flooding/erosion
flooding/erosion
Fauna)
- - - - - - N/A
considered
ATL could adversely affect
habitats and species for
which the Wye is
designated
Habitats and species not
flooding/erosion.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
- - - - - - - N/A
considered
Water resources are
protected (Water)
- - - - - - - N/A
considered
quality (Water)
Buttington Farm Historic
Landfill site.
- - - - - - - N/A
considered
to be at risk. Buttington
Farm Historical landfill site
is not at risk from current
or future flooding/erosion.
is not at risk from current
or future flooding/erosion.
is not at risk from current or
change trends.
- - -
N/A

(Air and Climate) of the line, option not
considered
property.
(Landscape)
- - - - - - N/A
considered
of the defence/land
reclamation will affect local
presence in the
disrupting views.
significantly increase the
height of defences
change
Summary
High ground and no flood risk presently, therefore advance the line will not be a benefit and is technically
inappropriate for areas of high ground and because there is no reduction in current flood risk/increased
protection.

4.7 Tidenham and Surrounding Villages Theme Area (TID)
The ‘With Present Management’ policy (set by SMP1) for TID1 – End of Beachley Road, Beachley Point
to Guscar Rocks – is:
Beachley to Sedbury Cliffs Do nothing Do Nothing Do Nothing or retreat the line
Sedbury Cliffs Do nothing Do Nothing Do Nothing
Sturch Pill to Guscar Rocks Do nothing / Hold / Retreat Do Nothing or (provisionally) Hold
or Retreat the Line
Do Nothing or (provisionally) Hold
or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the end of Beachley
Road, Beachley Point to Guscar Rocks shoreline can be compared with alternative management policies
Policy Unit – Tidenham and surrounding villages – End of Beachley Road, Beachley Point to Guscar Rocks (TID
1)
0-20 20-
50
50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Conservation sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
occur.
occur.
In theory habitats will roll back and
intertidal habitats will be
maintained. . Possibly some loss
alignment line: adequate
space to select
alignment so unlikely to
Terrestrial habitats are
Railway
- -
Limited flood risk, within
unit. Critical
infrastructure will be
protected.
Critical infrastructure will
be protected.
Critical infrastructure at risk from
increased flooding.
realignment of coast.
Assets may be
adversely impacted.
Objectives
Residential:
Sedbury, Beachley,
Tidenham and isolated
people and property
(Population and
Human Health)
- - -
Limited/no properties at
risk. Residential
properties will be
protected.
Limited/no properties at
risk Residential properties
will be protected.
Limited number of residential
properties will be at an increased
risk from flooding.
only limited number of
properties in this area.
Impact unlikely
Recreational sites:
space and footpath
network
key community,
and Human Health)
- - - - - - - -
General access along
coast maintained
. General access along
coast maintained
Limited flood/erosion risk so
existing footpaths unlikely to be
significantly affected
Retreating the line could
affect existing footpaths
Local commercial
- -
Agriculture is primary
land use; will be
Agriculture is primary land
use; will be protected from
Land is some limited areas will be
at increased risk of flooding
Retreating the defence
could result in loss of

assets
and economic assets
and Human Health)
protected from flooding flooding agricultural land
Infrastructure:
Local road and path
network
(Population and
Human Health)
- -
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
occur.
occur.
In theory habitats will roll back and
maintained. In addition terrestrial
habitats within boundary of
designation will be affected.
space to select
Terrestrial habitats
within boundary of
designation could be
affected..
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
Broad Stone
Scheduled Ancient
Monument
cultural historic
Environment)
- -
Limited features at risk
under current and future
Historical assets
protected.
Limited features at risk
under current and future
Historical asset protected.
Limited features present.
Historical asset will be at an
space to select
line with existing
targets/plans
Fauna)
-
Loss of intertidal habitat due to
coastal squeeze because
coastline will not retreat rapidly
enough.
space to select
Terrestrial habitats are
Avoid/minimise
which may have long
term health impacts
- -

(Population and
Human Health)
will be protected.
be protected.
Residential properties will be at an
increased risk from flooding.
space in reach is not
very limited so adverse
impact will only be
localised to some
isolated properties.
Water resources are
protected (Water)
- - - - - - - -
No water resource
No water resource known
to be at risk.
No water resource known to be at
risk.
No water resource
quality (Water) - - - - - - - -
No known risk to water
quality.
quality.
No known risk to water quality.
quality.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
Cannot raise the height
of the defences
indefinitely.
property.
accommodate climate
change.
(Landscape)
- - - N/A
High ground / hard
geology precludes
physical retreat of the
line, option not
considered
Ever increasing the
height of the defence will
affect local landscape in
terms of character
(increasing presence in
the landscape): also a
visual impact with
defences disrupting
views.
local landscape in terms
of character (increasing
presence in the
disrupting views.
depends on perception)
landscape due to potential
changes in vegetation condition
and structure
and design of any
or a negative impact.
Summary
The area is predominantly protected from flood risk by high ground, with an embankment at Sturch Pill with a
residual life of <20years.

The ‘With Present Management’ policy (set by SMP1) for TID2 – Guscar Rocks to Lydney Harbour – is:
Guscar Rocks to Lydney Harbour
Mouth
Hold the Line Hold the Line Hold the Line or Retreat the Line
(locally)
The impact on the agreed objectives of continuing with present management policy at the Guscar Rocks to
Lydney Harbour shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Tidenham and surrounding other villages – Guscar Rocks to Lydney Harbour (TID 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation sites:
SAC and SPA
- -
occur.
occur. Loss of intertidal
habitats from within the
Severn European sites and
SSSI.
will be maintained.
However terrestrial
space to select alignment
so unlikely to be an
adverse impact. Terrestrial
habitats are likely to be
affected.
Railway
Lydney Harbour
- -
be protected.
be protected.
Critical infrastructure at
risk from increased
flooding.
Assets may be adversely
impacted.
Objectives
Residential:
Netherend, Aylburton
and isolated residential
properties
people and property
Health)
- -
be protected.
be protected.
be at an increased risk
from flooding.
space in reach is not very
limited so adverse impact
will only be localised to
some isolated properties.
Recreational sites:
space and footpath
network
- - - - - - - -

Health)
No assets known to be
present.
present.
present.
present.
(including tourism)
Health)
- - -
Infrastructure:
Local road and path
network
Health)
- - -
Nature conservation
sites:
Severn Estuary SSSI
nationally and locally
their features
Fauna)
- -
occur.
occur.
will be maintained.
However terrestrial
affected.
setting. (Historic
Environment)
- - - - - - - -
No assets present. No assets present. No assets present. No assets present.
Fauna)
-
occur.
occur.
will be maintained.
However terrestrial
affected.

Avoid/minimise
stress and anxiety
erosion risk)
Health)
- -
be protected.
be protected.
from flooding.
space in reach is not very
limited so adverse impact
will only be localised to
some isolated properties.
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
Lydney recreation trust
historic landfill site
-
-
Protection from flooding of
Water quality adverse
potential impacts because
of increased tidal flood
risk.
Realignment is not likely to
impact on the historic
landfill site.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
landscape character
(Landscape)
- - -
-
presence in the
disrupting views.
presence in the
disrupting views.
Increasing the frequency of
landscape (whether
changes in vegetation
structure.
landscape (whether
structure.
Summary
As the railway line embankment currently forms the defence for this Policy Unit, retreat of the line would
leave the railway exposed therefore it has been considered to have a strong negative impact on the feature.

4.8 Lydney Harbour Theme Area (LYD)
The ‘With Present Management’ policy (set by SMP1) for LYD1 – Lydney Harbour – is:
Guscar Rocks to Lydney Harbour
Mouth
(locally)
The impact on the agreed objectives of continuing with present management policy at the Lydney Harbour
Policy Unit – Lydney – Lydney Harbour basin (LYD 1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
SAC and SPA
- - -
occur.
occur.
will be maintained.
However terrestrial
alignment line: harbour is
unlikely to be realigned.
Railway
- -
be protected.
be protected.
risk from increased
flooding.
impacted.
Residential:
Lydney
people and property
Health)
- -
be protected.
be protected.
from flooding.
space in reach is limited so
adverse impact likely to
localised properties.
Objectives
Recreational site:
Lydney Harbour facilities
Health)
- - -
Asset protected. Asset protected. Asset at an increased risk
of flooding.
reach is limited. Unlikely
to be adverse impact to
harbour facilities.
Lydney Harbour
industrial estate
(including tourism)
Health)
- - -
Asset protected. Asset protected.
Asset at an increased risk
of flooding.
harbour facilities.
Lydney Harbour port
operations
- - -
of flooding.

policies on marine
Health)
harbour facilities.
Infrastructure:
Local road, path network
and Lydney canal
Health)
- -
National nature
conservation:
Severn Estuary SSSI
sites.
Fauna)
- - -
occur.
occur.
will be maintained.
However terrestrial
historic interest.
Lydney Harbour
cultural historic
setting. (Historic
Environment)
- - -
Asset protected Asset protected Asset at an increased risk
of flooding.
adverse impact.
Fauna)
- - -
occur.
occur.
will be maintained.
However terrestrial
Avoid/minimise
stress and anxiety
erosion risk)
Health)
- -
be protected.
be protected.
from flooding.
space in reach is limited so
adverse impact likely to
localised properties.
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- -

Lydney historic and
active landfill sites
landfill sites.
landfill sites.
Water quality adverse
potential impacts because
of increased tidal flood
risk.
impact on the landfill sites.
change trends.
(Air and Climate)
- - -
- - -
property.
property.
accommodate climate
change.
landscape character
(Landscape)
- - - - - -
-
presence in the
disrupting views.
HTL will not involve any
change to the mudstone
cliffs.
landscape (whether
townscape due to
of the area.
landscape (whether
townscape due to
of the area.
Summary
The key policy driver for this unit is the harbour itself, including the flood defence (Harbour gates).
Within Lydney Harbour there are residential, industrial and commercial properties within the flood risk zone
should the defences be allowed to deteriorate, failing in the 2
nd
epoch under a No Active Intervention
scenario.

4.9 Lydney to Gloucester Theme Area (GLO)
The ‘With Present Management’ policy (set by SMP1) for GLO1 – Lydney Harbour to Brims Pill – is:
Lydney Harbour to Cliff Farm Do nothing Do Nothing Do Nothing
Cliff Farm to Wellhouse Rock Hold the Line Hold the Line Hold the Line
Wellhouse Rock to Poulton Court Hold the Line Hold the Line Hold the Line
Poulton Court to Whitescourt, Awre Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the Lydney Harbour to
Brims Pill shoreline can be compared with alternative management policies through the following table:
Policy Unit – Lydney to Gloucester – Lydney Harbour to Brims Pill (GLO 1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
SAC and SPA
- -
occur.
occur.
will be maintained.
However: the coast is not
likely to erode back fast
enough so coastal
squeeze may occur. Also
affected.
alignment line. In theory
habitats will roll back and
maintained. Also
terrestrial habitats may be
affected.
Railway, Electricity
transmission network
Blakeney Sewage
treatment works
- -
The railway line near
Blakeney is the only
infrastructure likely to be
flooding. Asset will be
protected.
flooding. Asset will be
protected.
flooding. Asset will be at
flooding.
alignment line. Railway
line and sewage treatment
works are likely to be
adversely impacted by
realignment.
Objectives
Residential:
Blakeney and isolated
people and property
Health)
- - - - - - - -
Residential properties not Residential properties not Residential properties not Residential properties not

at risk from flooding. at risk from flooding. at risk from flooding. at risk from flooding.
Recreational sites:
space and footpath
network
Health)
- - - - - - - -
No sites identified to be at
risk.
risk.
risk.
risk.
(including tourism)
Health)
-
Infrastructure:
Local road and path
network
Health)
Geological SSSI:
Lydney Cliff
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
-
National nature
conservation:
Severn Estuary SSSI
nationally and locally
their features
Fauna)
- -
occur.
occur.
will be maintained.
enough so coastal
affected.
maintained. Also
affected.
Listed Buildings and - - - - - - - -

setting. (Historic
Environment)
Historic assets not at risk
from flooding.
from flooding.
from flooding.
from flooding.
Fauna)
- -
occur.
occur.
will be maintained.
enough so coastal
affected.
maintained. Also
affected.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
- - - - - - - -
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - -
STW protected. STW protected.
STW at an increased risk
of flooding.
impact on the STW.
change trends.
(Air and Climate)
- - -
- - -
property.
property.
accommodate climate
change.
landscape character
(Landscape)
- - - - - -
-
presence in the
disrupting views.
HTL will not involve any
change to the mudstone
cliffs.
landscape (whether
townscape due to
of the area.
landscape (whether
townscape due to
of the area.
Summary
This unit does not have defences at present due to high ground limiting flood and erosion risk to the features
of the shoreline. A NAI policy will allow the continued exposure of Lydney Cliff (SSSI), therefore would have

a beneficial continued impact over the 3 epochs considered by the Severn Estuary SMP2. The railway line
runs in close proximity to the shoreline around Wellhouse Bay and Purton, shoreline erosion may threaten
this structure over the SMP2 timeframe.

The ‘With Present Management’ policy (set by SMP1) for GLO2 – Brims Pill to Northington Farm – is:
Whitescourt to Hayward Hold the Line Hold the Line or Retreat the Line Retreat the Line
Hayward to Northington Farm Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Brims Pill to
Northington Farm shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Lydney to Gloucester – Brims Pill to Northington Farm (GLO 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Internationally Nature
Conservation Sites
SAC and SPA
- -
occur.
occur.
will be maintained. The
reach is not limited in
terms of space so there is
scope to roll back. Also
affected.
maintained. Also
affected.
- - - - - - - -
No assets identified that
will be at an increased risk
of flooding.
of flooding.
of flooding.
of flooding.
Objectives
Residential:
Awre and isolated
properties
people and property
Health)
-
Awre not at risk of flooding
but isolated properties will
be protected.
be protected.
Isolated properties will be
flooding.
alignment line. Isolated
properties could be
adversely impacted.
Recreational sites:
space and footpath
network
Health)
- - - - - - - -
risk.
risk.
risk.
risk.
(including tourism)
Health)
- - - - - - - -

Infrastructure:
Local road and path
network
Health)
- - - -
National nature
conservation:
Severn Estuary SSSI
sites.
Fauna)
- -
occur.
occur.
affected.
maintained. Also
affected.
historic interest.
Priory Cottage listed
building
cultural historic
setting. (Historic
Environment)
- - - - - - - -
Limited historic assets
identified.
identified.
identified.
identified.
Fauna)
- -
occur.
occur.
affected.
maintained. Also
affected.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
-
be protected.
be protected.
Isolated properties will be
flooding.
alignment line. Isolated
properties could be
adversely impacted.
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - - - - - - -
quality.
quality.
quality.
quality.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
landscape character
(Landscape)
- - - -
presence in the
presence in the
landscape (whether
landscape (whether

disrupting views.
disrupting views.
townscape due to
of the area.
townscape due to
of the area.
Summary
Flood risk within this Policy Unit does not extend to the residential and commercial properties of Awre over
the SMP2 timeframe. Assets at risk of flooding include agricultural land, local footpaths and isolated
residential properties. Heritage features within the flood risk area are environmental records which will not be
affected by inundation.

The ‘With Present Management’ policy (set by SMP1) for GLO3– Northington Farm to Newnham Church
– is:
Northington Farm to Portlands Nab Do nothing Do Nothing (generally) or Hold the
Line (locally)
Do Nothing (generally) or Hold the
Line (locally)
Portlands Nab to the downstream
boundary of Newnham
Do nothing Do Nothing (generally) or
Hold/Retreat the Line (locally)
Do Nothing (generally) or
Hold/Retreat the Line (locally)
The impact on the agreed objectives of continuing with present management policy at the Northington Farm
to Newnham Church shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Lydney to Gloucester – Northington Farm to Newnham Church (GLO 3)
Key Policy Drivers 0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
A48, Railway
- - - - - - - -
Assets not at risk of
flooding.
flooding.
flooding.
flooding.
Objectives
Residential:
developments
people and property
Health)
- - - - - - - -
at risk of flooding.
Recreational sites:
space and footpath
network
Health)
- - - - - - -
Footpaths will be
protected.
Footpaths will be
protected.
Local footpaths will be at
flooding.
space in reach is not
limited so there is likely to
(including tourism)
Health)
-
Limited flooding likely in
this reach but some
agricultural assets
protected.
this reach but some
agricultural assets
protected.
this reach but some
agricultural assets at an
Impact depends on
space.
historic interest.
Priory Cottage listed
building
- - - - - - - -
Limited historical assets. Limited historical assets. Limited historical assets. Limited historical assets.

cultural historic
setting. (Historic
Environment)
Fauna)
Intertidal habitats retained/
increased; possible loss of
habitats behind existing
defences.
habitats affected by
retreated line.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
- - - - - - - -
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - - - - - - -
No risk to water quality
known.
known.
known.
known.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
landscape (whether
structure.
landscape (whether
structure.
Summary
High ground and hard geology limit flood and erosion risk to this unit, therefore few assets are at risk.
Minimal agricultural land is at risk under a No Active Intervention scenario.

The ‘With Present Management’ policy (set by SMP1) for GLO4– Newnham Church to Farm north of
Broadoak – is:
Newnham and Broadoak Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Newnham Church
to Farm north of Broadoak shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Lydney to Gloucester – Newnham Church to Farm north of Broadoak (GLO4)
Key Policy Drivers 0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Residential:
Newnham
Broadoak
people and property
protected.
protected.
flooding.
space in the reach is
A48, Railway
- - -
be protected.
be protected.
risk from increased
flooding.
Assets unlikely to be
adversely impacted.
Objectives
Recreational sites:
space and footpath
network
Health)
-
Public car park in
Newnham will be protected
from flooding/
Public car park in
Newnham will be protected
from flooding/
Public car park in
Newnham will be at an
increased risk from
flooding/
Assets unlikely to be
adversely impacted.
Agricultural land
Local businesses
(including tourism)
Health)
flooding.
flooding.
from flooding.
impacted.
Infrastructure:
Local road and path
network
Health)
- - - - - - - -
historic interest.
Historical assets protected
from flooding.
from flooding
Historical assets at an
increased risk from

Listed buildings in
Newnham and Broadoak
cultural historic
setting. (Historic
Environment)
flooding. Historical assets may be
adversely impacted.
Fauna)
defences.
retreated line.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
protected.
protected.
flooding.
space in the reach is
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - - - - - - -
known.
known.
known.
known.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
landscape (whether
townscape due to
of the area.
landscape (whether
townscape due to
of the area.
Summary
High ground and hard geology limit flood and erosion risk to this unit, however, the rate of erosion at the
shoreline will accelerate as a result of sea level rise. Newnham is a key residential and centre of heritage
assets within the Policy Unit, many properties are located on the immediate cliff line, and therefore at erosion
risk in the short term and continuing through the SMP2 timeframe. As the line is currently held, to preserve
the landscape character a Hold the Line policy would be beneficial.

The ‘With Present Management’ policy (set by SMP1) for GLO5– farm to the north of Broadoak to Hill
Farm, Rodley – is:
Broadoak to the upstream end of
Garden Cliff
Hold the Line (do nothing locally) Hold the Line, locally Do Nothing Hold the Line, locally Do Nothing
The Dumballs Hold the Line Hold the Line Hold the Line or Retreat the Line
Rodley to Bollow Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the farm to the north
of Broadoak to Hill Farm, Rodley shoreline can be compared with alternative management policies through
the following table:
Policy Unit – Lydney to Gloucester – Farm to north of Broadoak to Hill Farm, Rodley (GLO 5)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Heritage:
Westbury House and
Gardens
cultural historic
setting
Historical assets will be
protected.
protected.
Historical assets will be at
flooding.
Impacts will depend on the
Westbury House water
gardens could be
adversely impacted if
alignment is required at
that point of the reach.
Residential:
Westbury on Severn and
Rodley
people and property
-
protected.
protected.
space in the reach is not
very limited so property is
not likely to be affected.
Objectives
Residential:
properties
people and property
Health)
-
protected.
protected.
Recreational sites:
space and footpath
network
Health)
Coastal path will be
protected from flooding.
Coastal path will be
Coastal path will be at an
increased risk from
flooding.
Coastal footpath is likely to
be adversely impacted.
Agricultural land
Tourism
flooding.
flooding.
from flooding.
impacted.

(including tourism)
Health)
Infrastructure:
Local road and path
network
Health)
-
Garden Cliff SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
setting. (Historic
Environment)
protected.
protected.
Historical assets will be at
flooding.
Impacts will depend on the
assets could be adversely
impacted because those at
Lower and Upper Dumbell
are close to the coast.
Fauna)
defences.
retreated line.
Avoid/minimise
stress and anxiety
erosion risk)
Health)
-
protected.
protected.
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - - - - - - -
known.
known.
known.
known.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
presence in the
landscape (whether positive
or negative depends on
change to landscape due to
Increasing the frequency
of flooding may alter the
local landscape (whether

disrupting views.
disrupting views.
vegetation structure.
structure.

The ‘With Present Management’ policy (set by SMP1) for GLO6– west bank at Hill Farm, Rodley to west
bank at Goose Lane farm – is:
Rodley to Bollow Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the west bank at Hill
Farm, Rodley to west bank at Goose Lane farm shoreline can be compared with alternative management
Policy Unit – Lydney to Gloucester – west bank at Hill Farm, Rodley to west bank at Goose Lane farm (GLO 6)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Objectives
Agricultural Assets
(including tourism)
-
from flooding.
from flooding.
Agricultural land at an
increased risk from
flooding.
Agricultural land may be
adversely impacted.
Residential:
Bollow and isolated
residential
people and property
Health)
- -
protected.
protected.
flooding.
Recreational sites:
space and footpath
network
Health)
- - - - - - -
risk of flooding.
risk of flooding.
risk of flooding.
alignment line; assets may
be adversely impacted.
setting. (Historic
Environment)
- - - - - - - -
Historical assets not at risk
of flooding.
of flooding.
of flooding.
of flooding.
Fauna)
defences.
retreated line.
Avoid/minimise
stress and anxiety
- -
protected.
protected.
flooding.

erosion risk)
Health)
Water resources are
protected (Water)
- - - - - - - -
to be at risk.
to be at risk.
to be at risk.
to be at risk.
quality (Water)
- - - - - - - -
known.
known.
known.
known.
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
landscape character
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
landscape (whether
structure.
landscape (whether
structure.

The ‘With Present Management’ policy (set by SMP1) for GLO7– west bank at Goose Lane farm to west
bank at Ley Road – is:
Bollow to Hartland’s Hill Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the west bank at
Goose Lane farm to west bank at Ley Road shoreline can be compared with alternative management
Policy Unit – Lydney to Gloucester – west bank at Goose Lane farm to west bank at Ley Road (GLO 7)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
Walmore Common
Ramsar Site
sites
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
The site will be protected
from increased tidal
flooding.
The site will experience
increased tidal flooding.
Although the site is
wetland it relies on Winter
fluvial flooding to maintain
habitat. Increased tidal
flooding would have an
adverse impact.
It is unlikely that the site
will be impacted by
managed realignment.
Objectives
Residential:
developments
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
protected.
flooding.
Recreational sites:
space and footpath
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Local footpath network
Local footpath network at
Impact depends on
alignment line: there may

flooding. be an adverse impact.
(including tourism)
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
flooding.
of flooding.
Impact depends on
alignment line. However
there is limited space in
the catchment so an
adverse impact is likely.
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Assets protected. Assets at an increased risk
of flooding.
Impact depends on
the catchment so an
National nature
conservation:
Walmore Common SSSI
and NNR
sites.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- -
The site will be protected
from increased tidal
flooding.
The site will experience
increased tidal flooding.
Although the site is
wetland it relies on Winter
fluvial flooding to maintain
habitat. Increased tidal
flooding would have an
adverse impact.
It is unlikely that the site
will be impacted by
managed realignment.
Fauna)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
Wetland habitat protected. Loss of wetland habitat. Loss of wetland habitat
Avoid/minimise
stress and anxiety
N/A
Advance the Line is
considered to be an
-

erosion risk)
Health)
and water movement,
than reduce it
protected.
flooding.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
to be at risk.
to be at risk.
to be at risk.
quality (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
known.
known.
known.
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
- - -
property.
accommodate climate
change.
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
-
presence in the
landscape (whether
landscape (whether

disrupting views.
structure.
structure.

The ‘With Present Management’ policy (set by SMP1) for GLO8 – Ley Road to Drain from Long Brook –
is:
Hartland’s Hill to Denny Hill Hold the Line Hold the Line Hold the Line
Denny Hill to Minsterwortham Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Ley Road to Drain
from Long Brook shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Lydney to Gloucester – Ley Road to Drain from Long Brook (GLO 8)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Railway, A40
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets protected.
flooding.
Impact depends on
alignment line. However,
limited space for
realignment so adverse
effect likely.
Objectives
Agricultural assets
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
from flooding.
Agricultural land at an
increased risk from flooding.
Agricultural land may be
adversely impacted.
Recreational sites:
space and footpath
network
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Local footpath network Local footpath network Impact depends on

including the
Gloucestershire way
including the Gloucestershire
way protected from flooding.
alignment line: there may
Infrastructure:
Local road and path
network
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Assets protected.
flooding.
Impact depends on
the catchment so an
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
Wetland and terrestrial
habitat protected.
Loss of wetland/ terrestrial
habitat.
Loss of wetland/
terrestrial habitat
Avoid/minimise
which may have long
term health impacts
Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
protected.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
to be at risk.
No water resource known to be
at risk.
to be at risk.
quality (Water)
N/A
Advance the Line is
considered to be an
- - - - - - -

storage and water
leading to greater
than reduce it
known.
No risk to water quality known. No risk to water quality
known.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
accommodate climate
change.
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
-
presence in the
disrupting views.
negative depends on
potential changes in vegetation
structure.
landscape due to

4.10 Gloucester to Haw Bridge Theme Area (MAI)
The ‘With Present Management’ policy (set by SMP1) for MAI1 – West bank at Drain from Long Brook to
west bank at railway / A40 bridge – is:
Lower Parting to Maisemore Weir Hold the Line Hold the Line Hold the Line or Locally Retreat
the Line
The impact on the agreed objectives of continuing with present management policy at the West bank at
Drain from Long Brook to west bank at railway / A40 bridge shoreline can be compared with alternative
Policy Unit – Gloucester to Haw Bridge – west bank at Drain from Long Brook to west bank at railway / A40
bridge (MAI 1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Railway, A48,
flooding and erosion to critical
infrastructure
N/A
Advance the Line is
considered to be an
unsuitable policy for the
upper Estuary, as it would
storage and water
leading to greater flooding.
It could also trigger
erosion, rather than
reduce it
- - - - -
Critical infrastructure
protected
Railway at risk Assuming realignment
avoids main road and
railway
Residential:
Minsterworth
N/A
Advance the Line is
considered to be an
storage and water
reduce it
-
Some isolated properties in
at risk area; will be
protected
Some isolated properties at
risk; MInsterworth largely
unaffected
Overall flood risk will be
reduced however some
isolated properties may be
affected
Objectives
Industrial, commercial and
economic assets:
Agriculture
(including tourism)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
-
Assets would remain
protected
Limited built assets at risk;
increased flooding would
affect agriculture
Increased protection to
majority of assets; some
adverse effects to assets

within area of realignment
designated sites of historic
interest. Reduce significance
of impact to scheduled and
nationally important cultural
historic environment sites and
Environment)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
- - - - - - -
No identified features at risk No identified features at
risk
No identified features at
risk
N/A
Advance the Line is
considered to be an
storage and water
reduce it
-
- - - -
Intertidal habitats lost to
coastal squeeze
Intertidal habitats retained
/increased; possible loss of
defences
Intertidal habitats
retained/increased ;
possible loss of habitats
behind existing defences
Avoid/minimise
environmental impacts which
may have long term health
impacts (including stress and
anxiety associated with flood
and erosion risk)
Health)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
-
Limited properties at risk –
continue to be protected
Flood risk will increase Overall flood risk will be
affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
- - - - - - -
No features at risk No features at risk No features at risk
No detriment to water quality
(Water)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
- - - - - - -

No features at risk No features at risk No features at risk
Policy is designed to adapt to
or accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
- - -
Can not raise height of
defences indefinitely
Natural evolution of coast
change; possible impact to
people and property
accommodate climate
change
landscape character
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
reduce it
- - - -
Ever increasing height of
defences will affect local
presence in the landscape);
defences disrupting views
landscape (whether
condition and structure
landscape (whether
landscape due to
structure

The ‘With Present Management’ policy (set by SMP1) for MAI2 – West bank from Railway / A40 bridge to
west bank at Haw Bridge, including River Leadon – is:
No Policy Set No Policy Set No Policy Set No Policy Set
No policy was set in the first round of SMPs because the upstream reaches of the Severn were considered
to be primarily fluvial rather than estuarine, and therefore the definition of Strategic Shoreline Management
Option for this unit was deemed not required.
The impact on the agreed objectives of all management policy options can be considered through the
following table:
Policy Unit – Gloucester to Haw Bridge –Lower Parting to west bank at Haw Bridge, including River Leadon
(MAI 2)
0-20 20-50 50 - 100 0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
National / Local Nature
Conservation Sites –
Ashleworth Ham SSSI
managing adverse
locally designated
conservation sites
N/A
Advance the Line is
considered to be an
storage and water
leading to greater flooding. It
could also trigger erosion,
rather than reduce it
- - - -
Ashelworthham SSSIs
Site would be protected
from inundation from
saline water
Increased flooding from
saline water could affect
habitats – hydraulic
pathways unclear
Assuming defence line is
not retreated to SSSI
A414 / A40, Railway
N/A
Advance the Line is
considered to be an
storage and water
- -
Limited critical
infrastructure present,
some power lines;
protected from
flooding/erosion
Limited critical
some power lines;
subject to increased
inundation
Some local adverse affects
within retreated area, other
areas protected
Residential:
Maisemore,
Ashleworth
people and property
N/A
Advance the Line is
considered to be an
storage and water
-
Some isolated properties
in at risk area; will be
protected
Some isolated properties
at risk Overall flood risk will be
affected

Objectives
Recreational sites:
space and footpath
network
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
-
/
Pubic footpath along the
west bank protected
Public footpath and other
features at risk of
flooding/erosion
Riverside footpath may be
adversely affected, other
features protected
Local commercial
assets
and economic assets
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
- -
agriculture (grazing with
some arable). Protected
from flooding and
erosion
Agricultural land subject
to inundation
Some local adverse affects
within retreated area, land
behind protected
Scheduled
Monuments,
Highnam Court
Listing Buildings and
cultural historic
Environment)
N/A
Advance the Line is
considered to be an
storage and water
- -
Limited features
present; Highnam court
outside flood risk area
Limited features present;
Highnam Court outside
flood risk area
No major features likely to
be affected by retreated
defences; features further
back protected in long term
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
storage and water
- - - - -
coastal squeeze
Intertidal habitats
retained /increased;
Intertidal habitats
possible loss of terrestrial
habitat as defences set
back
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
-

Limited at risk
population protected
Small population at
increased risk
affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
- - - - - - -
be present
be present
present
quality (Water)
N/A
Advance the Line is
considered to be an
storage and water
- - - - - - -
be at risk
be at risk
at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
_ _ _
will accommodate
climate change; possible
property
accommodate climate
change
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
- - - -
presence in the
landscape); also a visual
disrupting views
flooding may alter the
landscape due to
structure
landscape (whether
Flooding in the 50 – 100 year epoch would inundate the freshwater SSSI of Ashleworth Ham. Advance the
line has not been assessed due to the adverse impact on fluvial flood risk from restricting channel flow
capacity.

The ‘With Present Management’ policy (set by SMP1) for MAI3 – East bank at Haw Bridge (B4213) to
Upper Parting – is:
No Policy Set No Policy Set No Policy Set No Policy Set
No policy was set in the first round of SMPs because the upstream reaches of the Severn were considered
to be primarily fluvial rather than estuarine, and therefore the definition of Strategic Shoreline Management
Option for this unit was deemed not required.
The impact on the agreed objectives of all management policy options can be considered through the
following table:
Policy Unit – Gloucester to Haw Bridge – East bank at Haw Bridge (B4213) to Upper Parting (MAI 3)
Realignment
0-
20
20-
50
50 - 100 0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Key Policy Drivers
Critical
Infrastructure:
Electricity Network
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
trigger erosion, rather than
reduce it
-
Limited critical infrastructure
present, some power lines;
protected from
flooding/erosion
Limited critical
some power lines; subject
to increased inundation
Some local adverse
affects within
retreated area, land
behind protected
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agriculture
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
-
agriculture (grazing with
some arable). Protected
from flooding and erosion
Agricultural land subject
to inundation
Some local adverse
affects within
behind protected
Recreational sites:
space and footpath
network
key community,
recreational and
amenity facilities.
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- -
Severn Valley Way and other
recreation assets protected
Severn Valley Way and
other assets likely to be
Severn Valley Way
possibly affected,

adversely affects other assets
protected
Wainlode Cliff SSSI
maintaining the
visibility of geological
exposures throughout
geological SSSIs
(Land Use, Geology
and Soils -including
Geomorphology and
Contaminated Land)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - -
Site maintained by fluvial
erosion – if defences
installed potential adverse
effects to SSSI
No active intervention will
ensure cliff face
maintained
Impact likely to
depend on alignment
line
National / Local
Nature Conservation
Sites:
Coombe Hill Canal
managing adverse
conservation sites
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - - - -
Terrestrial environment
behind defences protected
form flooding; However,
there is no predicted flood
risk to Coombe Hill Canal
SSSI
Freshwater environment
would be negatively
affected by NAI if saline
flooding was extensive in
this unit. However, there
is no predicted flood risk
to Coombe Hill Canal
SSSI
Impact would depend
on alignment line
sites of historic
interest. Reduce
to scheduled and
cultural historic
Environment)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - - - -
Limited no of features in this
reach
Limited no of features in
this reach
Limited no of
features in this reach
Biodiversity Action
Plan habitats and
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - -
coastal squeeze
/increased; possible loss
of habitats behind
existing defences
Intertidal habitats
possible loss of
retreated line
Avoid/minimise
which may have long
term health impacts
N/A
Advance the Line is
considered to be an
-

(Population and
Human Health)
storage and water
leading to greater
reduce it
Limited at risk population
protected
Small population at
increased risk
Overall flood risk will
be reduced however
some isolated
properties may be
affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - - - -
present
be present
No resources known
to be present
quality (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - - - -
risk
be at risk
No resources known
to be at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
_ _ _
change; possible impact
to people and property
accommodate
climate change
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - -
Increased frequency
of flooding may alter
the local landscape
negative depends on
perception)

defences disrupting views landscape due to
structure
May be a local
change to landscape
due to potential
changes in
and structure

The ‘With Present Management’ policy (set by SMP1) for MAI4 – Upper Parting to Lower Parting (left
bank of parting) – is:
Llanthony Weir to Lower Parting Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Upper Parting to
Lower Parting (left bank of parting)shoreline can be compared with alternative management policies through
Policy Unit – Gloucester to Haw Bridge – Upper Parting to Lower Parting (left bank of parting) (MAI 4)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Key Policy Drivers
Critical
Infrastructure:
A417, A40, Rail inks,
several electricity
substations.,
Reduce significance
with flooding and
erosion to critical
infrastructure
N/A
Advance the Line is
considered to be an
the upper Estuary, as
it would reduce in-
channel flood storage
and water movement,
greater flooding. It
could also trigger
reduce it
-
Critical infrastructure protected Critical infrastructure at risk
from increased flooding
alignment line;
space in the reach, so
likely to be adverse
Residential:
Gloucester City
Centre and northern
suburbs
Reduce significance
with flooding and
property
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agriculture
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Economic assets including
businesses within flood risk area of
Gloucester protected
Increased flood risk over
time
alignment line;
space in the reach, so

likely to be adverse
Heritage:
Scheduled
Monument and
Listed building
concentration at
Gloucester
Reduce significance
of impact to
scheduled and
cultural historic
environment sites
and their setting
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Few features within flood risk area;
protected form flooding
Features at risk of flooding Retreat of defences
likely to affect
Avoid/minimise
environmental
impacts which may
have long term health
impacts (including
stress and anxiety
associated with flood
and erosion risk)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Limited residential properties at risk Limited residential
properties at risk
Overall flood risk will
be reduced however
some isolated
properties may be
affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
No resources known to be present No resources known to be
present
be present
quality (Water)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
No resources known to be at risk No resources known to be
at risk
be at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
- - - -

could also trigger
reduce it
Can not raise height of defences
indefinitely
people and property
accommodate climate
change
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - -
Increasing height of defences will
affect local landscape in terms of
character (increasing presence in
the landscape); also a visual impact
with defences disrupting views
landscape (whether
local landscape
negative depends on
perception)

The ‘With Present Management’ policy (set by SMP1) for MAI5 – Alney Island – is:
Lower Parting to Maisemore Weir
(west channel)
Llathony Weir to the Lower Parting
(east channel)
The impact on the agreed objectives of continuing with present management policy at the Alney Island
Policy Unit – Gloucester to Haw Bridge – Alney Island (MAI 5)
0-20 20-50 50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
railway, A40 and A417
N/A
Advance the Line is
considered to be an
upper Estuary, as it
would reduce in-channel
flood storage and water
leading to greater
than reduce it
Theme Area High
Level Objectives
Agriculture
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
Limited asset present; assets
protected
Limited asset present
Assets at increase risk of
flooding
adverse effects within
retreated area, assets
behind protected
Residential:
properties
people and property
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
Limited residential properties
at risk
Limited residential
properties at risk
Some local adverse
area, properties behind
protected
Recreational sites:
space and footpath
N/A
Advance the Line is
considered to be an
-

network
key community,
recreational and
amenity facilities.
(Population and
Human Health)
leading to greater
than reduce it
adversely affects
Severn Valley Way
possibly affected, other
assets protected
Nature Conservation:
Alney Island LNR
(Mainly neutral wet
grassland and flood
meadows with
associated broadleaf
trees)
managing adverse
locally designated
conservation sites
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - -
No impact if current
hydrological regime
maintained
Increased saline intrusion
could affect habitat
composition of site
Retreat the line would
result in loss of habitat
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - - - - -
No impact on freshwater
habitats if current
hydrological regime
maintained. Loss of intertidal
habitats to coastal squeeze
Loss of
freshwater/terrestrial
habitats; intertidal habitats
maintained
Loss of
habitats; intertidal
habitats maintained
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
at risk/protected
Limited residential
properties at risk/protected
however some isolated
properties may be
affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - - - - -
No known assets at risk No known assets at risk No known assets at risk

quality (Water)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - - - - -
No known features at risk No known features at risk No known features at
risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - -
people and property
accommodate climate
change
Avoid detrimental
N/A
Advance the Line is
considered to be an
leading to greater
than reduce it
- - - - -
landscape (whether
local landscape
negative depends on
perception)
May be a local change
to landscape due to
structure

The ‘With Present Management’ policy (set by SMP1) for MAI6 – Lower Parting to Severn Farm – is:
Lower parting to Rea Hold the Line Hold the Line Hold the Line
Rea to Windmill Hill Hold the Line, locally Do Nothing Hold the Line, locally Do Nothing Hold the Line, locally Do Nothing
Windmill Hill to east end of Elmore Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Lower Parting to
Severn Farm shoreline can be compared with alternative management policies through the following table:
Policy Unit – Gloucester to Haw Bridge – Lower Parting to Severn Farm (MAI 6)
0-
20
20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-50 50 -
100
Key Policy Drivers
Residential:
South Gloucester
suburbs and
Quedgeley
Reduce significance
with flooding and
erosion to people
and property
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
Critical
Infrastructure:
transport network,
Netheridge STW,
A38 etc
Reduce significance
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
unsuitable policy the
would reduce in-
and water movement,
could also trigger
reduce it
-
Significant infrastructure protected Significant infrastructure at
increased risk
Depends on alignment
line – much of at risk
infrastructure adjacent to
river
Theme Area High
Level Objectives
Recreational sites:
Local facilities,
open space and
footpath network
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
Severn Valley Way,
Gloucester &
Sharpness Canal
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Assuming standard of protection Flood risk will increase Realignment will affect

maintained or increased positive
impact as assets inc. Severn Valley
Way and G&S canal will be
protected
riverside recreation
Industrial,
commercial and
economic assets:
Local commercial
assets
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural),
activities and
and Human Health)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
Land use predominantly agricultural
; protected from flooding
agricultural; flood risk will increase
adverse effects within
retreated area, assets
behind protected
Listed Buildings
and non-designated
sites of historic
interest. Reduce
to scheduled and
cultural historic
environment sites
and their setting.
(Historic
Environment)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
Limited features of interest Limited features of interest Limited features of
interest
Maintain and
and species in line
with existing
targets/plans
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - -
No impact on freshwater habitats if
current hydrological regime
Loss of freshwater/terrestrial
maintained
Loss of
habitats maintained
Avoid/minimise
environmental
impacts which may
have long term
health impacts
anxiety associated
with flood and
erosion risk)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - -
Limited number of properties at
risk/protected
Limited number of properties at
risk
Limited number of
properties affected by
realignment; wider FRM
benefits
N/A - -

Water resources are
protected (Water)
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
Gloucester Canal SW abstraction
for Purton (Bristol Water). Not
affected
Gloucester Canal SW abstraction
for Purton (Bristol Water). Could
be affected by increased
flooding/erosion
line ; impacts considered
unlikely
quality (Water)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
Active landfill site protected from
flooding
Active landfill site at risk from
flooding
Realignment in this
reach could affect landfill
adapt to or
accommodate
climate change
trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
-
indefinitely
Natural evolution of coast will
accommodate climate change;
accommodate climate
change
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
- - - - -
Ever increasing height of defences
will affect local landscape in terms
of character (increasing presence in
the landscape); also a visual impact
with defences disrupting views
and structure
landscape due to
structure

4.11 Gloucester to Sharpness Theme Area (SHAR)
The ‘With Present Management’ policy (set by SMP1) for SHAR1 – Severn Farm to Wicks Green – is:
Elmore Hold the Line Hold the Line Hold the Line or Retreat the Line
West end of Elmore to Wicksgreen Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Severn Farm to
Wicks Green shoreline can be compared with alternative management policies through the following table:
Policy Unit – Gloucester to Sharpness –Severn Farm to Wicks Green (SHAR 1)
0
- 20
20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Objectives
Agriculture /
Countryside
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
storage and water
- -
agriculture; continued
protection from flooding ,
Agricultural land subject to
inundation
Some local adverse
area, land behind
protected
Residential:
Elmore, Elmore Back,
Farley’s End and
isolated properties
people and property
N/A
Advance the Line is
considered to be an
storage and water
-
Isolated properties
protected
Isolated properties at risk Overall flood risk will be
affected
Recreational sites:
space and footpath
network
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
- -
other recreation assets
protected
adversely affects
Severn Valley Way
assets protected
N/A
Advance the Line is
considered to be an

(Population and
Human Health)
storage and water
risk/protected – power
lines only
risk – power lines only
Some local adverse
area, land behind
protected
Sites of historic
interest. Reduce
Environment)
N/A
Advance the Line is
considered to be an
storage and water
- - -
Limited features within
flood risk area some listed
structures would be
protected
Limited features within
flood risk area some listed
structures would be
affected
Some local adverse
area, features behind
protected
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
storage and water
- - - - -
Intertidal habitat lost to
coastal squeeze
Intertidal habitat
maintained; possibly some
loss of terrestrial habitats
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
-
Isolated properties
protected
Isolated properties at risk Overall flood risk will be
affected
Water resources are
protected (Water) N/A
Advance the Line is
considered to be an
storage and water
- -
Gloucester Canal SW
abstraction for Purton
(Bristol Water). Not
affected
Gloucester Canal SW
(Bristol Water). Could be
affected by increased
line ; impacts considered
unlikely

flooding/erosion
quality (Water)
N/A
Advance the Line is
considered to be an
storage and water
- - - - - - -
No known features at risk No known features at risk No known features at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
_ _ _
people and property
accommodate climate
change
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
- - - -
landscapes in terms of
presence in the
landscape); also a visual
disrupting views
landscape due to
structure
landscape due to
structure

The ‘With Present Management’ policy (set by SMP1) for SHAR2 – Wicks Green to Longley Green – is:
Wicksgreen to Longley Crib Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Wicks Green to
Longley Green shoreline can be compared with alternative management policies through the following table:
Industrial,
commercial and
economic assets:
Agricultural /
Countryside
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- -
Primary land use is agriculture; land
protected from flooding
Agricultural land at risk
from increased flooding
Some local adverse
area, land behind
protected
Residential:
Waterend and
Longney
Reduce significance
with flooding and
property
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Population in these area at risk; also
isolated properties. Flood risk
maintained or reduced
Population in these area at
risk; also isolated
properties. Flood risk will
increase
Impacts will depend on
alignment. Some
adverse impacts in
realignment area; wider
population protected
Policy Unit – Gloucester to Sharpness – Wicks Green to Longley Green (SHA 2)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Theme Area High
Level Objectives
Recreational sites:
Local facilities,
open space and
footpath network
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
Severn Valley Way
& G&S Canal
(Population and
Human Health)
/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-

adversely affects
Severn Valley Way
assets protected
Critical
Infrastructure:
Reduce significance
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Limited critical infrastructure; some
pylon lines; protected
Limited critical
infrastructure; some pylon
lines at risk
Impact depends on
retreat line. Some local
adverse affects within
behind protected
Reduce significance
with managing
adverse impacts on
designated
conservation sites.
and Fauna)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
No designated sites in this reach No designated sites in this
reach
No designated sites in
this reach
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest at
Waterend and
Longney Reduce
to Scheduled and
cultural historic
environment sites
and their setting.
(Historic
Environment)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- -
Features protected from increased
flooding
Features at increased risk
from flooding
Some features within
retreated area affected;
those behind will have
increased level of
protection
Maintain and
and species in line
with existing
targets/plans Habitat
Creation
Opportunity in this
reach
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- -
Intertidal habitats lost to coastal
squeeze
Opportunity for creation of
intertidal habitats; possible
Opportunity for creation
of Intertidal habitats
possible loss of

defences
Avoid/minimise
environmental
impacts which may
impacts (including
stress and anxiety
and erosion risk)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
-
Limited at risk population protected Small population at
increased risk
isolated properties may
be affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - -
Gloucester Canal SW abstraction for
Purton (Bristol Water). Not affected
Gloucester Canal SW
flooding/erosion
line ; impacts
considered unlikely
quality (Water)
N/A
Advance the Line is
considered to be an
it would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
risk
adapt to or
accommodate
climate change
trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
- - -
indefinitely
people and property
accommodate climate
change
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
- - - -

Summary
Habitat creation opportunities are hampered only by holding the present shoreline. Whilst defences remain in
place there is no impact on the habitat creation opportunity, where defences fail reinstallation or further
maintenance of the defence becomes a hindrance to habitat creation. Policies No Active Intervention and
Managed Realignment allow and create more potential over time for habitat creation.
it would reduce in-
and water movement,
could also trigger
reduce it
Ever increasing height of defences will
affect local landscape in terms of
character (increasing presence in the
landscape); also a visual impact with
landscape (whether
local landscape
negative depends on
perception)
to landscape due to
and structure

The ‘With Present Management’ policy (set by SMP1) for SHAR3 –Longley Green to Overton Lane – is:
Longney Crib to Priding Wick Court
(left bank).
The impact on the agreed objectives of continuing with present management policy at the Longley Green to
Overton Lane shoreline can be compared with alternative management policies through the following table:
Critical
Infrastructure:
Access Road to
Overton
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
Theme Area High
Level Objectives
Policy Unit – Gloucester to Sharpness – Longley Green to Overton Lane (SHA 3)
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Industrial,
commercial and
economic assets:
Agricultural /
Countryside
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
agriculture. Protected from
inundation
Some local adverse
area, land behind
protected
Residential:
Framilode, Priding,
plus isolated
properties
people and property
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
Assuming SoP is maintained
or increased
Flood risk increases Overall flood risk will be
isolated properties may
be affected
Recreational sites:
space and footpath
network
N/A
Advance the Line is
considered to be an
-

key community,
recreational and
amenity facilities.
(Population and
Human Health)
would reduce in-
and water movement,
could also trigger
reduce it
Severn Valley Way Gloucester
and Sharpness canal and
other recreation assets
protected
Severn Valley Way Gloucester
and Sharpness canal and
adversely affects
Severn Valley Way
Gloucester and
Sharpness canal
assets protected
impact to scheduled
and nationally
important cultural
(Historic
Environment)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
this reach
Limited no. of features in this
reach. Listed structures in Saul
Limited no of features in this
reach
this reach
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
- - - -
Loss of intertidal habitat Intertidal habitat
maintained/increased; loss of
terrestrial habitats
Intertidal habitats
affected by retreated line
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
-
Assuming SoP is maintained
or increased
Flood risk increases Overall flood risk will be
isolated populations may
be affected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
- -

reduce it-
risk
quality (Water)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
- - - - - - -
risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
_
property
accommodate climate
change
Avoid detrimental
character
(Landscape)
N/A
Advance the Line is
considered to be an
would reduce in-
and water movement,
could also trigger
reduce it
- - - -
character (increasing presence
in the landscape); also a visual
disrupting views
negative depends on
perception)
due to potential changes in
structure
landscape due to
structure

The ‘With Present Management’ policy (set by SMP1) for SHAR4 – Overton Lane to upstream of Hock
Cliff – is:
Priding Wick court to Longmarsh Pill Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Overton Lane to
upstream of Hock Cliff shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Gloucester to Sharpness – Overton Lane to upstream of Hock Cliff (SHA 4)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Critical
Infrastructure:
Electricity
Transmission
Network
Reduce significance
with flooding and
erosion to critical
infrastructure
N/A
Advance the Line is
considered to be an
the upper Estuary,
as it would reduce in-
channel flood
storage and water
movement,
could also trigger
reduce it
- - -
present; some pylons and lines;
protected from flooding
present; some pylons and lines
position
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agricultural /
Countryside
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
Residential:
Arlingham and
isolated properties
Reduce significance
with flooding and
erosion to people
and property
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
Assuming SoP is maintained or
increase
Flood risk increases Overall flood risk will
be reduced however
some isolated

properties may be
affected
Recreational sites:
Local facilities,
open space and
footpath network
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
Severn Way and
other recreational
assets protected
Severn Way and other recreational
assets protected
Severn Way and other features
subject to increased flooding
Severn Valley Way
possibly affected,
other assets protected
Industrial,
commercial and
economic assets:
Local commercial
assets
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
agriculture. Protected from
inundation
Some local adverse
area, land behind
protected
Listed Buildings
and non-
designated sites of
historic interest.
Reduce significance
of impact to
scheduled and
locally, regionally
and nationally
important cultural
sites and their
setting. (Historic
Environment)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
Listed structures in Alringham
protected
Listed structures in Alringham at
risk
Depends on
alignment; few
features within
immediate river
corridor
Maintain and
enhance
Biodiversity Action
Plan habitats and
existing
targets/plans
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
-
- - - -
No impact on freshwater habitats if Loss of freshwater/terrestrial Loss of

current hydrological regime
maintained
habitats maintained
Avoid/minimise
environmental
impacts which may
have long term
health impacts
(including stress
and anxiety
associated with
flood and erosion
risk) Parts of
Arlingham and
individual properties
at risk
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- -
At risk population remains
protected
Increased flood risk Limited number of
properties affected by
realignment; wider
FRM benefits
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- - - - - - -
No known features No known features No known features
No detriment to
water quality
(Water)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
- - - - - -
No known features No known features No known features
adapt to or
accommodate
climate change
trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
-
indefinitely
accommodate climate
change
Avoid detrimental
character
N/A
Advance the Line is
considered to be an
- - - -

(Landscape) unsuitable policy for
the upper Estuary,
channel flood
storage and water
movement,
could also trigger
reduce it
Ever increasing height of defences
will affect local landscape in terms
of character (increasing presence
in the landscape); also a visual
impact with defences disrupting
views
and structure
local landscape
negative depends on
perception)
to landscape due to
and structure

The ‘With Present Management’ policy (set by SMP1) for SHAR5 – Hock Cliff – is:
Longmarsh Pill to Hock Ditch (left
bank).
The impact on the agreed objectives of continuing with present management policy at the Hock Cliff
National Geological
Nature Conservation
Hock Cliff
To allow natural
processes and to
maintain the visibility of
geological exposure
throughout the SSSI
N/A
geology ATL is not
N/A
considered
Policy Unit – Gloucester to Sharpness – Hock Cliff (SHA 5)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Objectives
Residential:
Fretherne
people and property
Health)
N/A
geology ATL is not
- - - - - -
N/A
considered
No at risk population No at risk population
Recreational sites:
space and footpath
network
key community,
and Human Health)
N/A
geology ATL is not
- - - - - -
N/A
considered
None present None present
Local commercial
assets
and economic assets
tourism) (Population and
Human Health)
N/A
geology ATL is not
- - - - - -
N/A
considered
N/A
geology ATL is not
- - - - - -
N/A
considered

Health)
historic interest at
Fretherne
cultural historic
Environment)
N/A
geology ATL is not
- - - - - -
N/A
considered
line with existing
targets/plans
N/A
geology ATL is not
- N/A
considered
coastal squeeze
High ground will prevent
roll back of habitats –
intertidal habitat lost to
coastal squeeze
Avoid/minimise
which may have long
term health impacts
Health)
N/A
geology ATL is not
- - - - - -
N/A
considered
No at risk population No at risk population
Water resources are
protected (Water)
N/A
geology ATL is not
- - - - - -
N/A
considered
No features at risk No features at risk
quality (Water)
N/A
geology ATL is not
- - - - - -
N/A
considered
No features at risk No features at risk
(Air and Climate)
N/A
geology ATL is not
_ _ _
N/A
considered
people and property
(Landscape)
N/A
geology ATL is not
- - - - - -
N/A
considered
High resistant feature,
High resistant feature,

Summary
Hock Cliff is the primary feature of this Policy Unit, dominating future landscape character. The shoreline is
currently not defended and is stable. Additional features of the Policy Unit - residential developments,
commercial property or historic sites - are not affected by the management of the shoreline.

The ‘With Present Management’ policy (set by SMP1) for SHAR6 – downstream of Hock Cliff to Frampton
Pill – is:
Hock Cliff to Frampton Breakwater Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the downstream of
Hock Cliff to Frampton Pill shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Gloucester to Sharpness – downstream of Hock Cliff to Frampton Pill (SHA6)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation
Designations:
Severn Estuary
Ramsar, SAC and SPA
impact on internationally
their features
- -
Coastal squeeze; intertidal
habitat loss
Habitat roll back; intertidal
habitats retained; terrestrial
habitat loss
Habitat roll back;
intertidal habitats
retained; terrestrial
habitat loss
Theme Area High
Level Objectives
Residential:
Frampton on Severn
people and property
- - - - -
Recreational sites:
Open space and
footpath network
including the Severn
Way and G&S canal.
key community,
recreational and
amenity facilities.
(Population and
Human Health)
-
Features protected from
flooding
Features protected from
flooding
Features at risk
Depends on alignment,
but features likely to be
affected
Local commercial
assets
and economic assets
-

and Human Health)
Primary land use is
agriculture. Assets
protected
Assets protected Assets at risk
Some local adverse
area, land behind
protected
Local Infrastructure:
Frampton STW and
power lines, Gloucester
to Sharpness Canal
(Population and
Human Health)
-
-
Infrastructure protected Infrastructure protected Infrastructure at risk
Depends on alignment.
Some local adverse
effects within retreated
area, features behind
protected
National nature
conservation:
Severn Estuary SSSI.
Frampton Pools
unaffected
managing adverse
locally designated
conservation sites.
and Fauna)
- - - -
Intertidal habitat loss
Intertidal habitat loss to
coastal squeeze
Roll back of habitats
permitted so status quo
maintained
Depends on alignment;
likely to be neutral or
positive
Historic Park and
Garden:
Frampton Court
sites of historic
interest. Reduce
important cultural
(Historic Environment)
-
-
-
Density of listed buildings
around Frampton;
protected form flooding
around Frampton; protected
form flooding
around Frampton; at risk
from flooding Frampton Court
not in flood risk area
line with existing
targets/plans
- - - - - -
Intertidal habitat lost;
terrestrial habitat gained
coastal squeeze
Intertidal habitat maintained;
possibly some loss of
Intertidal habitat
maintained; possibly
some loss of terrestrial
habitats
Avoid/minimise
which may have long
term health impacts
flood and erosion risk).
Frampton and Saul at
risk (Population and
Human Health)
-

Flood risk maintained or
reduced
Flood risk maintained or
reduced
Flood risk will increase over
time
Depends on alignment,
but limited space so likely
to be negative
Water resources are
protected (Water)
-
Gloucester Canal Severn
Water abstraction for
Purton (Bristol Water).
Not affected
Water abstraction for Purton
(Bristol Water). Not affected
Water abstraction for Purton
flooding/erosion
line ; but limited space so
likely to be negative
quality (Water) - - - - - - - -
No known features at risk No known features at risk No known features at risk No known features at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
accommodate climate
people and property
accommodate climate
change
Avoid detrimental
- - - -
perception)
condition and structures
landscape due to
structure
Summary
The shoreline defence fails in the 20 to 50 year epoch, although residential properties become at risk from
flooding between 50 and 100 years.
The intertidal zone downstream from Hock Cliff, to Frampton Pill, is currently in an unfavourable condition
according to it’s inclusion in international and national conservation designations as a result of coastal
squeeze. Holding the Line as a policy for this unit has been considered to have a negative impact on
meeting the objective to “Reduce significance of impact associated with maintaining the integrity of
internationally designated sites and the favourable condition of their features” as sea level rise will
exacerbate the situation over time.

The ‘With Present Management’ policy (set by SMP1) for SHAR7 – Frampton Pill to Royal Drift Outfall –
is:
Frampton Breakwater to The
Dumbles
Hold the Line Hold the Line or Retreat the Line Hold the Line or Retreat the Line
The Royal Drift Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Frampton Pill to
Tites Point shoreline can be compared with alternative management policies through the following table:
Policy Unit – Gloucester to Sharpness – Frampton Pill to Tites Point (SHA 7)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Conservation
Designations:
Severn Estuary
Ramsar, SAC and
SPA
Reduce significance
integrity of
internationally
the favourable
condition of their
features
- -
Loss of intertidal
habitat
Coastal squeeze; intertidal
habitat loss
habitat loss
Habitat roll back;
intertidal habitats
habitat loss
Critical
Infrastructure:
Electricity Network,
Sewerage
Treatment Works
Reduce significance
with flooding and
erosion to critical
infrastructure
-
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agriculture
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
-
Agriculture is main
land use; land
protected from
Agriculture is main land use; land
protected from flooding and
erosion
Agriculture is main land use;
flood risk will increase
Some local adverse
area, land elsewhere
protected

Recreation: inc.
Sharpness to
Gloucester Canal
and Severn Valley
Way , Slimbridge
wetland centre.
Reduce significance
with flooding and
erosion to critical
infrastructure
- -
Features protected
from flooding
Features protected from flooding Features at risk
Depends on
alignment, but
features likely to be
affected
Residential:
Slimbridge and
developments
Reduce significance
with flooding and
property Small
communities and
isolated properties
- -
Property protected
from flooding
Property protected from flooding Flood risk will increase Some local adverse
area, property
elsewhere protected
Industrial,
commercial and
economic assets:
Local commercial
assets
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
and Human Health)
-
Infrastructure:
Local road and path
network
Reduce significance
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
- -
Reduce significance
with managing
adverse impacts on
designated
conservation sites.
Severn SSSI
and Fauna)
- - - - -
Intertidal habitat loss
Intertidal habitat loss to coastal
squeeze
Roll back of habitats permitted
so status quo maintained
Depends on
alignment; likely to be
neutral or positive
Scheduled
Monuments, Listed
- - -

Buildings and non-
designated sites of
historic interest.
Reduce significance
of impact to
scheduled and
cultural historic
environment sites
and their setting.
(Historic
Environment)
No features of major
significance; onshore
features protected
No features of major significance;
features protected
No features of major significance;
feature sat risk or increased
flooding
No features of major
significance
Maintain and
and species in line
with existing
targets/plans.
Potential habitat
creation site
- - - - - -
terrestrial habitat
gained
Intertidal habitat lost to coastal
squeeze
possibly some loss of terrestrial
habitats
Intertidal habitat
some loss of
Avoid/minimise
environmental
impacts which may
impacts (including
stress and anxiety
and erosion risk)
(Population and
Human Health)
- - -
Water resources are
protected (Water)
-
Gloucester Canal
Severn Water
(Bristol Water). Not
affected
Gloucester Canal Severn Water
abstraction for Purton (Bristol
Water). Not affected
Gloucester Canal Severn Water
abstraction for Purton (Bristol
Water). Could be affected by
increased flooding/erosion
line ; but limited space
so likely to be negative
quality (Water)
- - -
adapt to or
accommodate
climate change
trends.
(Air and Climate)
_ _ _
indefinitely
property
accommodate climate
change
Avoid detrimental
character
(Landscape)
- - -
-
Ever increasing the
will affect local
presence in the
Ever increasing the height of the
landscape in terms of character
(increasing presence in the
landscape): also a visual impact
with defences disrupting views.
negative depends on perception).
Increasing the
frequency of flooding
may alter the local
landscape (whether
depends on

landscape): also a
visual impact with
defences disrupting
views.
changes in vegetation structure. perception). May be a
local change to
landscape due to
Summary
As low lying areas with residential, commercial/industrial and key community facilities are at flood risk, to
hold the line or advance the line would be beneficial for the assets and meet the set objectives.

The ‘With Present Management’ policy (set by SMP1) for SHAR8 – Royal Drift Outfall to Sharpness
Docks – is:
Tites Point to South Ridge Sand Hold the Line Hold the Line Hold the Line
Sharpness (north) Hold the Line Hold the Line Hold the Line
Sharpness (west) Hold (locally) / Do nothing
(locally)
Hold the Line (locally), Do Nothing
(locally)
(locally)
The impact on the agreed objectives of continuing with present management policy at the Royal Drift Outfall
to Sharpness Docks shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Gloucester to Sharpness – Royal Drift outfall to Sharpness Docks (SHA 8)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation
Designations:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
Loss of intertidal habitat Coastal squeeze; intertidal
habitat loss
habitat loss
habitats retained;
terrestrial habitat loss
Docks,
Health)
- - - - - - -
Critical infrastructure not
risk from flooding.
risk from flooding.
the reach so adverse
impacts are likely.
Objectives
Agriculture, Docks and
related Industry
and economic assets
tourism)
- - - - - - -
Assets not at risk from
flooding.
flooding.
flooding.
impacts are likely.

Recreational sites:
space and footpath
network including the
Severn Way and
Gloucester to
Sharpness canal
key community,
and Human Health)
- - - - - - -
flooding.
flooding.
flooding.
impacts are likely.
Residential:
developments
people and property
- - - - - - -
Residential properties not at
risk of flooding.
impacts are likely.
Local infrastructure:
Gloucester and
Sharpness Canal
Local road and path
network
Health)
- - - - - - -
Infrastructure not at risk
from flooding.
from flooding.
from flooding.
impacts are likely.
Purton Passage SSSI
maintaining the visibility
of geological exposures
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
-
Cliff face will no longer be
exposed to natural
processes
Cliff face will continue to
erode
alignment line. Cliff face
is unlikely to be excavated
and the coastline moved
backwards.
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -

habitat loss
habitat loss
habitats retained;
historic interest.
cultural historic
Environment)
- - - - - - -
Historical assets not at
risk of flooding.
of flooding.
of flooding.
there is limited space so
could be adverse impacts
to listed buildings at
Sharpness or the milepost
between Sharpness and
Purton.
line with existing
targets/plans. Potential
habitat creation site
- - - - - -
coastal squeeze
Intertidal habitat
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
Health)
- - - - - - -
risk of flooding.
impacts are likely.
Water resources are
protected (Water)
- - - - - - - -
No sources at risk of
flooding.
flooding.
flooding.
No sources at risk.
quality (Water)
- - - - - - - -
Water quality not at risk. Water quality not at risk. Water quality not at risk. Water quality not at risk.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the

disrupting views.
defences disrupting views. potential changes in
structure.

4.12 Sharpness to Severn Crossings Theme Area (SEV)
The ‘With Present Management’ policy (set by SMP1) for SEV1 – South of Sharpness Docks to Bull Rock
– is:
Sharpness (west) Hold (locally) / Do nothing
(locally)
(locally)
(locally)
South of Sharpness Docks to
Berkley Pill
Hold the Line Hold the Line Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the South of
Sharpness Docks to Bull Rock shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Sharpness to Severn Crossings – South of Sharpness docks to Bull Rock (SEV 1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
habitat loss
habitat loss
habitats retained;
Sharpness Sewerage
Treatment Works
and economic assets
tourism)
- - -
of flooding.
adequate space to select
alignment so impact on
STW is not likely.
Objectives
Residential:
properties
people and property
Health)
-
protected.
protected.
alignment line. Adverse
impacts likely to isolated
properties.
Recreational sites: -

space and footpath
Severn Way
key community,
and Human Health)
Assets protected. Assets protected. Assets at an increased risk
of flooding.
impacts likely because
Severn Way runs along
coast.
Local commercial
assets
and economic assets
and Human Health)
- -
of flooding.
coast.
National nature
conservation sites:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitat loss
habitats retained;
historic interest.
Listed buildings
cultural historic
Environment)
- -
Limited historic assets –
assets protected.
assets protected.
assets at an increased risk
of flooding.
Limited historical assets.
realignment but there is
unlikely to be an adverse
impact.
line with existing
- - - - - -
coastal squeeze
Intertidal habitat
Intertidal habitat

Avoid/minimise
which may have long
term health impacts
Health)
-
protected.
protected.
properties.
Water resources are
protected (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
Sharpness STW
- -
Asset protected so no risk
to water quality.
to water quality.
Asset at increased risk of
flooding so there could be
water quality issues
associated with the flooding
of the STW.
alignment so impact on
STW is not likely.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
structure.
Summary
As low lying areas with residential, commercial/industrial and key community facilities are at flood risk, to
hold the line or advance the line would be beneficial for the assets and meet the set objectives.

The ‘With Present Management’ policy (set by SMP1) for SEV2 – Bull Rock to southern boundary of
Berkeley Power Station – is:
Berkley Power Station Hold the Line Hold the Line Hold the Line / Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Bull Rock to
southern boundary of Berkeley Power Station shoreline can be compared with alternative management
Policy Unit – Sharpness to Severn Crossings –Bull Rock to southern boundary of Berkley power station (SEV
2)
0-20 20-50 50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-50 50 -
100
Key Policy Drivers
Berkeley Power Station
and Associated
Infrastructure
-
Assets protected. Assets protected. Assets at risk of some
(limited) flooding.
there is very limited
space in this reach so
adverse impacts are
likely.
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
habitat loss
habitat loss
Habitat roll back;
intertidal habitats
habitat loss
Objectives
Local commercial
assets
and economic assets
and Human Health)
- -
Assets protected. Assets protected. Assets at risk of some
(limited) flooding.
there is very limited
space in this reach so
adverse impacts are
likely.

National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitat loss
Habitat roll back;
intertidal habitats
habitat loss
historic interest.
Listed buildings south of
Berkley
cultural historic
Environment)
- -
assets protected.
assets protected.
assets at an increased risk of
flooding.
Limited historical assets.
realignment but there is
unlikely to be an adverse
impact.
Residential:
people and property
Health)
-
protected.
protected.
properties.
line with existing
- - - - - -
coastal squeeze
possibly some loss of
Intertidal habitat
some loss of terrestrial
habitats
Avoid/minimise
which may have long
term health impacts
Health)
and power station
protected.
Residential properties and
power station protected.
Residential properties and
power station at an
impacts likely to power
station and isolated
properties.
Water resources are
protected (Water)
- - - - - - - -
No resources known to be No resources known to be No resources known to be at No resources known to

at risk. at risk. risk. be at risk.
quality (Water)
Berkley nuclear Power
Station
-
to water quality.
to water quality.
Asset at increased risk of
flooding so there could be
water quality issues
associated with the flooding
of the STW.
alignment so adverse
impact on Berkley Power
station is likely. This
could potentially cause
water quality issues.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
landscape due to
Summary
The defences fronting Berkeley Power Station have a residual life of 20 – 50 years. Current Policy is to Hold
the Line. In order to continue to meet the objective to protect the power station from flooding and erosion
Hold the Line is the preferred policy. The power station is protected from flooding and erosion by the current
defences over the first epoch (0 – 20 years).
Stress and anxiety of the local population and the preservation of water quality are linked directly to the
protection of the power station.

The ‘With Present Management’ policy (set by SMP1) for SEV3 – southern boundary of Berkley power
station to Oldbury Power station – is:
South of Berkley Power
Station to Chapel House Hold the Line Hold the Line Hold the Line / Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the southern boundary
of Berkley power station to Oldbury Power station shoreline can be compared with alternative management
Policy Unit – Sharpness to Severn Crossings –southern boundary of Berkley power station to Oldbury Power
station (SEV 3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Assets of adjacent PUs
(Power Stations), and
Agriculture
-
Agricultural land protected. Agricultural land protected.
Agricultural land at risk of
flooding.
alignment line. However;
alignment so likely
adverse impact on
agricultural land.
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
habitat loss
habitats retained;
habitats retained;
Objectives
Residential:
properties
people and property
Health)
protected.
protected.
flooding.
properties.
Recreational sites:
space and footpath
Severn Way

key community,
and Human Health)
of flooding.
coast.
Local commercial
assets
and economic assets
and Human Health)
-
Local road and path
network
Health)
- -
of flooding.
alignment line. May be an
adverse impact.
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitats retained;
habitats retained;
historic interest.
Listed buildings.
cultural historic
Environment)
-
Listed buildings protected. Listed buildings protected. Listed buildings at risk of
increased flooding.
alignment line. May be an
adverse impact on listed
buildings adjacent to the
coast.
line with existing
- - - - - -

coastal squeeze
Intertidal habitat
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
Health)
protected.
protected.
flooding.
properties.
Water resources are
protected (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
- - - - - - - -
No known water quality
risks.
risks.
risks.
risks.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
structure.
structure.
Summary
Agriculture is the dominant economic activity at the shoreline from the southern boundary of Berkley Power
Station to the northern boundary of Oldbury Power Station. To advance the line is theoretically a positive
step for the industry over the SMP2 timeframe as the total area of agricultural land could be increased.
The protection from flooding and erosion of nationally significant power stations at either end of this Policy
Unit are key drivers for the setting of policy at the shoreline. Both power stations are within the flood cells of
this Policy Unit.
For historic environment assets to advance the line would have a negative impact. Some assets are marine
based, and the physical advancement of the line is likely to disturb or destroy the sites. To hold the line will
have a positive impact post 2050 as defences under no active intervention will have failed if the line is not
held, leaving the sites vulnerable to flooding and erosion.

The ‘With Present Management’ policy (set by SMP1) for SEV4 – Oldbury Power Station – is:
Chapel House to Oldbury Power
Station
Hold the Line Hold the Line Hold the Line of Retreat the Line
The impact on the agreed objectives of continuing with present management policy at Oldbury Power Station
Policy Unit – Sharpness to Severn Crossings –Oldbury power station (SEV 4)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Oldbury Power Station,
Agriculture, set back
behind power station
-
Power station and
agricultural land protected.
Power station and
agricultural land protected.
flooding. Power station on
higher ground so not at
risk from flooding.
alignment so likely
adverse impact on
agricultural land.
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
Fauna)
- -
habitat loss
habitats retained;
habitats retained;
Tidal Reservoir fronting
Power Station
- N/A
This would impact on the
refill of the tidal reservoir.
Tidal reservoir not impeded
from refilling. Power station
is not at risk of flooding.
Tidal reservoir not
impeded from refilling.
Power station is not at risk
of flooding.
N/A
Objectives
Local commercial
assets
and economic assets
- -

and Human Health)
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitats retained;
habitats retained;
historic interest.
Listed buildings.
cultural historic
Environment)
- -
from flooding.
from flooding.
Historical at risk from
increased flooding.
Impacts depend on
alignment line. Assets are
set back from the coast so
are unlikely to be
adversely impacted.
line with existing
- - - - - -
coastal squeeze
Intertidal habitat
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
Health)
-
of flooding.
Impacts depend on
alignment line. Retreat is
likely to be perceived
negatively.
Water resources are
protected (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
Historic Landfill sites
adjacent to Oldbury
Power Station.
-
Landfill site protected so
no risk to water quality.
Landfill site protected so no
risk to water quality.
Landfill site at risk of
increased flooding so there
could be water quality
issues associated with the
alignment so adverse

flooding of the STW. impact on the historic
landfill site is likely. This
could potentially cause
water quality issues.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
structure.
structure.
Summary
The protection from flooding and erosion of nationally significant power station at Oldbury is a key
driver for the setting of policy at the shoreline. Although the majority of this unit benefits from
high ground, the impact of flooding or erosion on the power station would have a major impact.
.

The ‘With Present Management’ policy (set by SMP1) for SEV5 – Oldbury power station to Littleton
Warth – is:
Oldbury to Littleton Hold the Line Hold the Line Hold the Line of Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Oldbury power
station to Littleton Warth shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Sharpness to Severn Crossings – Oldbury power station to Littleton Warth (SEV 5)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
habitat loss
habitats retained;
habitats retained;
Objectives
Residential:
Oldbury on Severn
Isolated properties
people and property
- -
protected.
protected.
flooding.
impacts on large
residential areas is
unlikely. Isolated
properties may be
impacted.
Local commercial
assets
and economic assets
and Human Health)
- -
Agricultural land protected. Agricultural land protected.
flooding.
alignment so likely
adverse impact on
agricultural land.

Recreational sites:
space and footpath
Severn Way
key community,
and Human Health)
-
of flooding.
coast.
Local infrastructure:
Local road and paths
network
Health)
- - - - - - - -
No assets at risk. No assets at risk. No assets at risk. No assets at risk.
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitats retained;
habitats retained;
At Oldbury on Severn
historic interest.
cultural historic
Environment)
- -
Historical assets protected. Historical assets protected. Historical assets are at an
realignment but it is likely
that historical assets will
be protected as they are
set back from the coast.
line with existing
- - - - - -
coastal squeeze
Intertidal habitat
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
- -

Health)
protected.
protected.
flooding.
impacts on large
residential areas is
unlikely. Isolated
properties may be
impacted.
Water resources are
protected (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
- - - - - - - -
No water quality risks
identified.
identified.
identified.
identified.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
structure.
structure.
Summary
Agriculture is the dominant economic activity at the shoreline from the southern boundary of
Berkley Power Station to the northern boundary of Oldbury Power Station. To advance the line is
theoretically a positive step for the industry over the SMP2 timeframe as the total area of
agricultural land could be increased.
The protection from flooding and erosion of nationally significant power stations at either end of this
Policy Unit are key drivers for the setting of policy at the shoreline. Both power stations are within
the flood cells of this Policy Unit.
For historic environment assets to advance the line would have a negative impact. Some assets
are marine based, and the physical advancement of the line is likely to disturb or destroy the sites.
To hold the line will have a positive impact post 2050 as defences under no active intervention will
have failed if the line is not held, leaving the sites vulnerable to flooding and erosion.

The ‘With Present Management’ policy (set by SMP1) for SEV6 – Littleton Warth to Aust Ferry – is:
Aust Cliff to Old Passage Do nothing (locally hold) Do Nothing, locally Hold the
Line
The impact on the agreed objectives of continuing with present management policy at the Littleton Warth to
Aust Ferry shoreline can be compared with alternative management policies through the following table:
Policy Unit – Sharpness to Severn Crossings – Littleton Warth to Aust Ferry (SEV 6)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
M48 Road Crossing
and Services, Power
Line Crossing and
Substation
- - - - - - - N/A
High ground / hard
geology precludes
Very little at risk from tidal
flooding via this frontage;
no impact
no impact
no impact
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- - N/A
High ground / hard
geology precludes
habitat loss
habitats retained;
Objectives
Local commercial
assets
and economic assets
and Human Health)
- - - - - - - N/A
High ground / hard
geology precludes
Agriculture is main land
use; not at risk from tidal
no impact
no impact
no impact
Aust Cliff SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
-- - - N/A
High ground / hard
geology precludes

Contaminated Land)
Advancing the line would
mean exposure was no
longer subject to natural
erosion processes
Assuming the defences did
not adversely affect the cliff
and were located behind it
natural processes would be
maintained.
Natural processes would
be maintain
Residential:
Aust and isolated
people and property
- - - - - - - N/A
High ground / hard
geology precludes
at risk of tidal flooding via
this frontage; no impact
risk of tidal flooding via this
frontage; no impact
at risk of tidal flooding via
this frontage; no impact
Recreational sites:
space and footpath
Severn Way
key community,
and Human Health)
- - - - - - - N/A
Open space and footpath
network are not at risk of
tidal flooding via this
frontage; no impact
frontage; no impact
frontage; no impact
National nature
conservation sites:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
habitat loss
habitats retained;
habitats retained;
historic interest.
cultural historic
Environment)
- - - - - - - N/A
No historical assets
identified.
identified.
identified.
line with existing
- - - - - -
coastal squeeze
Intertidal habitat
Intertidal habitat
Avoid/minimise
which may have long
term health impacts
- - - - - - - N/A

Health)
No risk of flooding from
this frontage.
No risk of flooding from this
frontage.
No risk of flooding from
this frontage.
Water resources are
protected (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
- - - - - - - -
identified.
identified.
identified.
identified.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - -
-
presence in the
disrupting views.
structure.
structure.
Summary
The negative impact on heritage features of advancing the line is entirely based on the impact on the Aust
Ferry Site; all other heritage sites would undergo no impact to the advancement of the shoreline.

4.13 Severnside to Bristol and Avon Theme Area (BRIS)
The ‘With Present Management’ policy (set by SMP1) for BRIS1 – Aust Ferry (site of) to New Passage – is:
Old Passage to new Passage Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Aust Ferry (site of)
to New Passage shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Bristol and Severnside Aust Ferry (site of) to New Passage (BRIS 1)
Realignment
0-
20
20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 -
100
0-20 20-
50
50 -
100
Key Policy
Drivers
Critical
infrastructure:
Power Line
Crossing, M4 and
M48, Severn
Tunnels, Bedwick
STW
To manage the risk
of flooding and
erosion to critical
infrastructure.
- -
Infrastructure
protected.
Infrastructure protected. Infrastructure at risk from
flooding.
adequate space to
select alignment so
unlikely to be an
adverse impact.
International
Nature
Conservation
Sites
Severn Estuary
Ramsar, SAC and
SPA
Avoid significant
impact on the
integrity of
internationally
designated sites
and the favourable
condition of their
features
- -
Coastal squeeze
will occur
Coastal squeeze will occur Habitats will roll back, intertidal
intertidal habitats
maintained; however
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agriculture
Reduce
significance of
impact associated
with flooding and
erosion to
industrial,
commercial and
- -

economic assets
(including
agricultural), and
tourism)
Land use
predominantly
agricultural.
Agricultural assets
will be protected.
Agricultural assets will be protected. Agricultural assets will be at an
.
the reach is not very
limited due to land
being used for
agriculture. There may
be an adverse impact
Residential:
Isolated
residential
developments at
Northwick and
Redwick
Reduce
significance of
impact associated
with flooding and
erosion to people
and property
(Population and
Human Health)
- -
Residential
properties
protected.
Residential properties protected. Residential properties are at risk
from flooding.
adequate space to
select alignment so
unlikely to be adverse
impact.
Recreational
sites:
Local facilities,
open space and
footpath network
including the
Severn Way
Reduce
significance of
impact associated
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
- -
Recreational sites
including the
Severn Way will be
protected.
Recreational sites including the
Severn Way will be protected.
Recreational sites including the
Severn Way will be at an
adequate space to
select alignment so
impact.
National nature
conservation:
Severn Estuary
SSSI
Reduce
significance of
impact associated
with managing
adverse impacts
on nationally or
locally designated
conservation sites.
(Biodiversity,
Flora and Fauna)
- -
Coastal squeeze
will occur
Coastal squeeze will occur Habitats will roll back, intertidal
intertidal habitats
maintained; however

Listed Buildings
and non-
designated sites
of historic
interest. Reduce
significance of
impact to
scheduled and
locally, regionally
and nationally
important cultural
historic
environment sites
and their setting.
(Historic
Environment)
- - -
Limited no of
features of note;
historical assets will
be protected.
Historical assets will be protected. Historical assets will be at am
adequate space to
select alignment so
impact.
Maintain and
enhance
Biodiversity Action
Plan habitats and
existing
targets/plans
- - - - -
Loss of intertidal
habitat due to
coastal squeeze.
Loss of intertidal habitat due to coastal
squeeze.
/increased; possible loss of
defences
Intertidal habitats
possible loss of
retreated line
Avoid/minimise
environmental
impacts which may
have long term
health impacts
(including stress
and anxiety
associated with
flood and erosion
risk)
(Population and
Human Health)
- - -
Limited number of
residential
properties;
residential
properties
protected.
from flooding.
adequate space to
select alignment so
impact
Water resources
are protected
(Water)
- - - - - - - -
No resources
No resources known to be at risk. No resources known to be at
risk.
be at risk.
No detriment to
water quality
(Water)
Bedwick Sewage
treatment works
-
STW protected. STW protected. STW at risk of flooding; potential
for pollution .
Asset protected as it is
assumed managed
retreat will not impact
on either the sewage
treatment works or the
chemical works.
Policy is designed
to adapt to or
- - -

accommodate
climate change
trends.
(Air and Climate)
Can not raise the
height of defences
indefinitely.
Can not raise the height of defences
indefinitely.
accommodate climate
change.
Avoid detrimental
effects to
landscape
character
(Landscape)
- - - -
Ever increasing
height of the
defences will affect
local landscape in
terms of character
(increasing
presence in the
landscape): also a
visual impact with
defences disrupting
views.
Ever increasing height of the defences
will affect local landscape in terms of
character (increasing presence in the
landscape): also a visual impact with
negative depends on
condition and structure.
Increasing the
may alter the local
landscape (whether
depends on
local change to
landscape due to
and structure.
Summary
Agriculture is the dominant economic activity at the shoreline from the southern boundary of
Berkley Power Station to the northern boundary of Oldbury Power Station. To advance the line is
theoretically a positive step for the industry over the SMP2 timeframe as the total area of
agricultural land could be increased.
The protection from flooding and erosion of nationally significant power stations at either end of
this Policy Unit are key drivers for the setting of policy at the shoreline. Both power stations are
within the flood cells of this Policy Unit.
For historic environment assets to advance the line would have a negative impact. Some assets
are marine based, and the physical advancement of the line is likely to disturb or destroy the
sites. To hold the line will have a positive impact post 2050 as defences under no active
intervention will have failed if the line is not held, leaving the sites vulnerable to flooding and
erosion.

The ‘With Present Management’ policy (set by SMP1) for BRIS2 – New Passage to north extent of
Severnside Works – is:
Old Passage to new Passage Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the New Passage to
north extent of Severnside Works shoreline can be compared with alternative management policies through
Policy Unit – Bristol and Severnside -New Passage to north extent of Severnside Works (BRIS 2)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Critical
infrastructure:
M4 and M5, Second
Severn Crossing,
Power Line
Crossing, Severn
Tunnels, Railway
(defences), Seabank
Power Station
To manage the risk of
to critical
infrastructure.
- -
Infrastructure protected. Infrastructure protected. Infrastructure at risk from
flooding.
alignment line:
impact.
Industrial,
commercial and
economic assets:
Chemical
Processing Plants,
Chittening Wharf
Trading Estate
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
- -
-
Assets will be protected. Assets will be protected. Assets will at an increased risk
of flooding.
alignment line:
impact.
Conservation Sites
Severn Estuary:
Ramsar, SAC and
SPA
Avoid significant
impact on the
integrity of
internationally
- -

the favourable
condition of their
features.
occur
Coastal squeeze will occur In theory habitats will roll back
maintained; however reach
developed so scope for roll back
limited in some areas; also
affected
In theory habitats will
roll back and intertidal
habitats will be
maintained; however
reach developed so
scope for roll back
limited in some areas;
also terrestrial
habitats may be
affected
Theme Area High
Level Objectives
Residential:
Severn Beach
Reduce significance
with flooding and
property
- -
protected.
from flooding.
alignment line;
impact.
Recreational sites:
Severn Way Local
facilities, open
space and footpath
network
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
- -
Footpaths and caravan
and camping site will be
protected.
Local footpaths and caravan and
camping site will be protected.
Local footpaths and caravan and
camping site will be at an
alignment line:
impact.
National nature
conservation:
Severn Estuary
SSSI
Reduce significance
with managing
adverse impacts on
designated
conservation sites.
and Fauna)
- -
occur
Coastal squeeze will occur In theory habitats will roll back
maintained. However reach
developed so scope for rollback
limited. In addition terrestrial
habitats will be affected
alignment line:
space in the reach;
likely to be affected
Scheduled
Monuments:
Heavy anti-aircraft
battery;
Listed Buildings
and non-designated
- -

sites of historic
interest. Reduce
to scheduled and
cultural historic
environment sites
and their setting.
(Historic
Environment)
Historical assets
protected.
Historical assets protected. Historical assets will be at an
alignment line:
impact.
Maintain and
and species in line
with existing
targets/plans
- - - -
coastal squeeze.
Intertidal habitats maintained
however potential loss of
terrestrial habitats; also space
limited due to development
Set back of line will
maintain intertidal
habitats; however
potential loss of
terrestrial habitats;
also space limited due
to development
Avoid/minimise
environmental
impacts which may
impacts (including
stress and anxiety
and erosion risk)
(Population and
Human Health)
- -
Properties protected. Properties protected. Residential properties and
industry are at risk from flooding.
alignment line;
impact.
Water resources are
protected (Water)
- - - - - - - -
be at risk.
risk.
risk.
No resources known
to be at risk.
quality (Water)
Sewage Treatment
Works at Bedwick
Chemical Treatment
works; Active
landfill sites
- -
Assets protected. Assets protected. Assets at risk from increased
flooding, with associated
implications for water quality.
Asset protected as it
is assumed managed
retreat will not impact
on either the sewage
treatment works or the
chemical works.
However limited
space to achieve
realignment
adapt to or
accommodate climate
change trends.
(Air and Climate)
- _ _ _
Can not raise the height Can not raise the height of Natural evolution of the coast will Managed retreat will

of defences indefinitely. defences indefinitely. accommodate climate change;
property.
accommodate climate
change.
Avoid detrimental
character
(Landscape)
- - - - -
Ever increasing height
of the defences will
affect local landscape in
terms of character
(increasing presence in
the landscape): also a
visual impact with
defences disrupting
views.
Ever increasing height of the
negative depends on
Increasing the
may alter the local
landscape (whether
depends on
local change to
landscape due to
and structure.
Summary
Significant assets indicate a Hold the Line Policy to be appropriate. Very large flood cells spanning large
areas of the shoreline mean the impact of not defending this shoreline from flooding are far reaching. There
are, however, significant environmental impacts to Holding the Line at BRIS 2 and adjacent segments due to
lost habitat as a result of coastal squeeze.
The chemical processing plant is considered a Key Policy Driver due to the economic benefit and the
potential detrimental impact on water quality and the environment in the event of flooding or erosion of the
site.

The ‘With Present Management’ policy (set by SMP1) for BRIS3 – North extent of Severnside Works to
Avonmouth Pier – is:
Severnside Works to Mitchell’s Salt
Rhine
Mitchell’s Salt Rhine to Avonmouth
Pier
The impact on the agreed objectives of continuing with present management policy at the New North extent
of Severnside Works to Avonmouth Pier shoreline can be compared with alternative management policies
Policy Unit – North extent of Severnside Works to Avonmouth Pier (BRIS 3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
M5 and M49, Railway
Line, Lighthouse
Avonmouth sewage
treatment works
Avonmouth Docks
Manage the risk of
-
-
protected
protected
increased risk of flooding
Insufficient space to
significantly realign without
affecting infrastructure
Avonmouth industry
including chemical
processing plant
Avonmouth port
Fuel depots
and economic assets
tourism)
Assets will be protected. Assets will be protected. Assets will be at an
Assets will be adversely
affected by the
realignment.
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA
on the integrity of
internationally
their features
- -
Coastal squeeze will occur Coastal squeeze will occur In theory habitats will roll
will be maintained.
affected
reach; terrestrial habitats

Theme Area High
Level Objectives
Residential:
Settlement of
Avonmouth
people and property
-
be protected.
Residential properties will be
protected.
flooding.
Some local adverse
area, land behind
protected; however scope
to retreat defences in this
reach currently limited by
development.
Recreational sites:
footpath network
key community,
and Human Health)
- - - - - - - -
present.
present.
present.
present.
National nature
conservation
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
and Fauna)
-
Coastal squeeze will occur Coastal squeeze will occur In theory habitats will roll
will be maintained.
affected
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
cultural historic
Environment)
-
Historical assets protected Historical assets protected Historical assets at risk of
increased flooding.
.
line with existing
targets/plans
-
Loss of intertidal habitat due
to coastal squeeze.
back, intertidal habitats
maintained
maintain intertidal habitats
Avoid/minimise

which may have long
term health impacts
(Population and
Human Health)
Limited residential
properties present assets
will be protected.
Assets will be protected. Assets will be at an
Some local adverse
area, assets behind
retreat limited by industrial
development
Water resources are
protected (Water)
- - - - - - - -
at risk.
risk.
at risk.
at risk.
quality (Water)
Avonmouth STWs
Active landfill sites
-
of flooding, with
implications for water
quality.
Majority or assets
protected; potential for
some to be affected by the
realignment.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
property.
accommodate climate
change.
(Landscape)
- - - -
the defences will affect
presence in the
disrupting views.
landscape (whether
Summary
Significant assets indicate a Hold the Line Policy to be appropriate. Very large flood cells spanning large
areas of the shoreline mean the impact of not defending this shoreline from flooding are far reaching. There
are, however, significant environmental impacts to Holding the Line at BRIS 3 and adjacent segments due to
lost habitat as a result of coastal squeeze.

The ‘With Present Management’ policy (set by SMP1) for BRIS4 – Avonmouth Pier to Netham Weir – is:
River Avon (Right Bank) Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Avonmouth Pier to
Netham Weir shoreline can be compared with alternative management policies through the following table:
Policy Unit – Bristol and Severnside - Avonmouth Pier to Netham Weir (BRIS 4)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Residential
Developments
Bristol city
Sned Park
Sea Mils
Shirehampton
Avonmouth
people and property
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- -
Residential properties are not
at risk of flooding with the
exception of properties in
Avonmouth. Properties in
Avonmouth will be protected.
not at risk of flooding with
the exception of properties
in Avonmouth. Properties
in Avonmouth will be at an
increased risk of flooding,
Retreating the! line would
affect significant amount
of development
M5
Avonmouth electricity
substations
Avonmouth Fire and
Police stations
Bristol electricity
substations
Bristol hospitals
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
Critical infrastructure in the
centre of Bristol is not at risk
from flooding. The M5 and
M4 and Avonmouth area will
be protected from flooding.
Critical infrastructure in the
centre of Bristol is not at
risk from flooding. The M4
and M5 and Avonmouth
area will be at an
Retreating the line would
affect critical infrastructure
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA,
Avon Gorge
Woodlands SAC Avoid
significant impact on the
integrity of internationally
their features
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- -
Avon Gorge Woodlands
unaffected by tidal flooding.
Severn Estuary affected.
Coastal squeeze will occur
will be maintained.

affected
Industrial Assets,
Regeneration Potential
Avonmouth Docks
Avonmouth Industry
Bristol commercial
centre
Bristol Docks
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
The centre of Bristol is not at
risk from flooding. The
Avonmouth assets will be
protected from flooding under
this option.
The centre of Bristol is not
at risk of flooding. The
Avonmouth assets will be
flooding under this option.
Significant realignment
not feasibly due to
presence of assets that
would be adversely
affected
Objectives
people and property
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- -
If sufficient space
available realignment
towards the mouth of the
Avon could offer some
local protection
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
Limited recreational assets
present. Recreational
amenities are not at risk of
flooding.
Recreational amenities are
not at risk of flooding.
Limited recreational
assets to be affected h
policies on marine
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
- - - - - - -

than reduce it
Marine operations are not
likely to be impacted.
National Nature
Conservation
Designations (Severn
Estuary, Avon Gorge
and Horseshoe Bend
SSSIs). Reduce
associated with
managing adverse
locally designated
conservation sites.
and Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
-
All SSSI apart from Severn
Estuary unaffected by tidal
flooding, both now and in
future Option will protect
terrestrial parts of site,
however intertidal areas will
experience coastal squeeze.
Intertidal habitats will be
protected for as long as
habitat can roll back.
However space limited,
will occur
allow habits to roll back,
however space limited;
terrestrial habitats that
exist will be lost
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
Historic Parks and
Gardens:
King Weston House
cultural historic
Environment)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - -
Scheduled Monuments and
Listed Buildings are not at risk
of tidal flooding.
Scheduled Monuments
and Listed Buildings are
Features may be
adversely affected if line
retreated
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
Coastal squeeze will result in
back retaining intertidal
habitats, however space
limited due to
development so some loss
of habitats ix likely t occur
however may affect
terrestrial habitats, also
space limited due to
development
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
- - - -

than reduce it
Some local adverse
effects within retreated
area; more widely
properties will be
protected
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
risk.
at risk.
at risk
quality (Water)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - - - - - -
risk.
at risk.
at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -
property.
accommodate climate
change
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
than reduce it
- - -

townscape due to
of the area. .
and design of any
or negative impact
Summary
Significant assets indicate a Hold the Line Policy to be appropriate, despite limited likely impact as
a result of high ground. Current defence anticipated lifespan into the 2
nd
epoch of the SMP2 limit
the impact of a potential change in policy.

The ‘With Present Management’ policy (set by SMP1) for BRIS5– Netham Weir to Avon road (Easton-in-
Gordano) – is:
Netham Weir to South of Burgh
Walls
Burgh Walls to Chapel Pill Do nothing Do Nothing Do Nothing
Chapel Pill to Portbury Pier Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at Netham Weir to Avon
road (Eastern In Gordano) shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Bristol and Severnside - Netham Weir to Avon road (Eastern In Gordano)
(BRIS 5)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Residential:
Bristol city
Easton in Gordano
people and property
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
not at risk of flooding. A
small number of properties
in Easton in Gordano will
be at an increased level of
flooding.
not at risk of flooding; plus
limited space to retreat
defences
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA
and Avon Gorge
Woodlands SAC
of internationally
their features
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Avon Gorge Woodlands is
currently unaffected by
tidal flooding and is not
predicted to be at future
risk. Severn site is remote
from this reach
risk. Severn site is remote
from this reach
risk. Retreat the line could
adversely affect the site.
Severn site is remote from
this reach
Bristol electricity
substations
Bristol hospitals within
reach
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - -

than reduce it
No critical infrastructure at
risk of tidal flooding
Objectives
Agriculture, Industrial
Development
and economic assets
tourism)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
flooding.
flooding.
flooding.
people and property
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
flooding.
flooding.
flooding; limited space for
realignment.
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
not at risk of tidal flooding;
limited space for
realignment
policies on marine
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
likely to be impacted;
limited space for
realignment.
managing adverse
locally designated
N/A
Advance the Line is
considered to be an
- - - - - -

conservation sites
(Ashton Court, Ham
Green SSSIs, Leigh
Woods NNR).
Fauna)
and water movement,
than reduce it
All sites currently
unaffected by tidal
flooding; no impacts
anticipated with HTL
All sites currently
unaffected by tidal
flooding; no impacts
associated with this option
All sites currently
unaffected by tidal
flooding; retreat the line
would adversely affect
sites
historic interest.
Historic Parks and
Gardens:
Leigh Court, Arnos Vale
Cemetery Bristol
University Botanic
Gardens
cultural historic
Environment)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - -
Scheduled Monuments
Scheduled Monuments
Scheduled Monuments
Retreating the line could
adversely affect the sites
line with existing
targets/plans
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
-
Coastal squeeze may
result in loss of intertidal
habitats
Potential for habitat roll
back in some areas ;
however terrestrial sites
may be at risk
Retreat the line would
adversely affect
designated terrestrial sites
Avoid/minimise
which may have long
term health impacts
Health)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
not at risk of tidal flooding
so no impact.
so no impact.
so no impact.
Water resources are
protected (Water)
N/A
Advance the Line is
considered to be an
and water movement,
- - - - - - -

than reduce it
at risk.
at risk.
at risk.
quality (Water)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - - - - -
at risk.
at risk.
at risk.
(Air and Climate)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
_ _ -
property.
accommodate climate
change
(Landscape)
N/A
Advance the Line is
considered to be an
and water movement,
than reduce it
- - - -
presence in the
disrupting views.
Defences will fall into
disrepair however risk form
tidal flooding will not
increase. Potentially some
minor changes to local
landscape
and character of the area;
the nature and design of
any changes will determine
whether this is a positive or
negative impact
Summary
nd
the impact of a potential change in poli

The ‘With Present Management’ policy (set by SMP1) for BRIS6– Avon road (Easton-in-Gordano) to
Portishead Pier – is:
Chapel Pill to Portbury Pier Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the Avon road
(Eastern In Gordano) to Portishead Pier shoreline can be compared with alternative management policies
Policy Unit – Bristol and Severnside- Avon road (Eastern In Gordano) to Portishead Pier (BRIS 6)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation
Designations
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- -
Coastal squeeze will occur Habitats will roll back ,
intertidal habitats
maintained; however
terrestrial habitats lost
back , however terrestrial
habitats lost
Dock Related Industry
and Infrastructure –
asset from adjacent
Policy Unit within flood
risk
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
Assets will be protected. Assets will be protected. Assets at an increased risk
of flooding.
Majority or assets will be
protected from the risk of
flooding but some may be
affected adversely by the
realignment.
Docks and marinas
Lighthouse
M5 Avonmouth road
and rail Bridge
Portbury Wharf STW
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
Infrastructure protected Infrastructure at risk Impact depends on
alignment; in theory some
local adverse impacts with
wider positive benefits

Objectives
Residential:
Portbury Wharf,
including new
developments, and
Sheepway
people and property
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
-
Residential assets
protected.
Residential assets at risk
from increased flooding.
Residential assets
protected but some may
be adversely affected by
realignment.
Recreational sites:
space and footpath
network
key community,
and Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
Sustrans route, leisure
centre and some footpath
networks. Assets
protected.
networks. Assets at an
networks. Overall assets
protected potentially some
local adverse effects due
to realignment.
Dock and marina
operations
policies on marine
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it-
Dock operations protected Dock operations at risk Retreating the line likely to
affect dock operations
National nature
conservation
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
intertidal habitats
maintained; some space for
roll back of terrestrial
habitats
Habitats will roll back ,
intertidal habitats
maintained; some space
for roll back of terrestrial
habitats
N/A
Advance the Line is
-

line with existing
targets/plans
considered to be an
storage and water
leading to greater
reduce it
intertidal habitats maintained
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
-
Residential assets
protected.
Residential assets
protected.
Residential assets at risk
from increased flooding.
Residential assets
protected but some may
be adversely affected by
realignment.
Water resources are
protected (Water)
-N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - - - - -
at risk.
risk.
at risk.
quality (Water)
Portbury Wharf STW
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
-
Asset protected. Asset at risk of coastal
flooding with pollution
potentially resulting. The 0 to
20 year flood cell from the
shoreline at PORT1 includes
sections of source protection
zone 1. Saline intrusion from
flooding may alter chemical
status of groundwater.
Realignment in this reach
is likely to affect the STW.
adapt to or
accommodate climate
change trends.
N/A
Advance the Line is
considered to be an
- - -

(Air and Climate) tributaries to the Severn
storage and water
leading to greater
reduce it
property.
accommodate climate
change.
(Landscape)
N/A
Advance the Line is
considered to be an
storage and water
leading to greater
reduce it
- - - -
presence in the
disrupting views.
structure.
Summary
nd
the impact of a potential change in policy.

4.14 Portishead and Clevedon Theme Area (PORT)
The ‘With Present Management’ policy (set by SMP1) for PORT1– Portishead Pier to swimming pool – is:
Old Pier to Portishead Point Do nothing Do Nothing Do Nothing, locally Retreat the Line
(provisional option)
The impact on the agreed objectives of continuing with present management policy at the Portishead Pier to
swimming pool shoreline can be compared with alternative management policies through the following table:
Policy Unit – Portishead and Clevedon – Portishead Pier to swimming pool (PORT 1)
0-20
20-50
50 - 100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20
20-50
50 - 100
Key Policy Drivers
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
Coastal squeeze will occur Coastal squeeze will occur Habitats will roll back ,
intertidal habitats
maintained
intertidal habitats
maintained
Lighthouse
Health)
- - - - - - - -
Lighthouse and electricity
substations are not at risk
of flooding.
of flooding.
of flooding.
of flooding.
Objectives
Residential:
people and property
Woodlands Road
residential properties not
at risk; properties in
outskirts of Portishead
affected
Some residential
properties at risk of
flooding. Properties
protected
Some residential properties
Properties protected
Some residential
properties at risk of
flooding; flood risk will
increase over time.
Local adverse effects,
wider benefits
Recreational Sites:
footpath network
key community,
- - - - - - -

and Human Health)
including footpaths. They
are not at risk of flooding.
are not at risk of flooding
but may be adversely
affected due to
realignment.
Portishead Pier to
Black Nore SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
- - -
Advancing the line means
exposure will no longer be
subject to coastal
processes
Defences may damage
exposure; however
processes will continue to
operate
maintain the exposure
Will depend on alignment;
however likely that
retreating the line will
leave the exposure subject
to natural processes
National nature
conservation
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
Coastal squeeze will occur Coastal squeeze will occur Habitats will roll back ,
intertidal habitats
maintained
intertidal habitats
maintained
Heritage Features:
historic interest.
cultural historic
Environment)
- - - - - - - -
High number of non-
designated archaeological
features along this reach
of coastline. Assets along
coast are not at risk of
tidal flooding.
Assets along coast are not
at risk of tidal flooding.
Local historical assets
along coast are not at risk
of tidal flooding.
alignment. Historical
assets along coast are not
line with existing
targets/plans
- - - - -
intertidal habitats
maintained. LNR behind
defences potentially
affected
maintain intertidal habitats;
however terrestrial habitats
inc LNR may be affected
Avoid/minimise
which may have long
term health impacts
- - - - - - -

Health)
of tidal flooding.
of tidal flooding
of tidal flooding
not at risk of flooding;
realignment would
therefore cause additional
stress.
Water resources are
protected (Water)
-
- - - - - - -
at risk.
at risk.
at risk.
at risk.
quality (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
(Air and Climate)
_ _ _
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
landscape (whether
Summary
The residential properties along the shoreline within this Policy Unit are on high ground but at erosion risk
over the long term due to their close proximity to the coast.
Leisure centre set back out of flood cell or erosion risk line, therefore no impact of any policy approach.

The ‘With Present Management’ policy (set by SMP1) for PORT2 – swimming pool to southern extent of
Esplanade Road – is:
Woodhill Bay Hold the Line Hold the Line Hold the Line
The impact on the agreed objectives of continuing with present management policy at the swimming pool to
southern extent of esplanade road shoreline can be compared with alternative management policies through
Policy Unit – Portishead and Clevedon - swimming pool to southern extent of Esplanade Road (PORT 2)
0-20
20-50
50 - 100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20
20-50
50 - 100
Key Policy Drivers
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
occur
intertidal habitats
maintained
Objectives
Recreational Sites:
Woodhill Bay
Swimming Pool and
Marine Lake
key community,
facilities
- - - - - - -
Recreational assets are
Recreational assets are
Recreational assets are not
Recreational assets along
the sea front (including the
pool and lake) will be
adversely affected due to
realignment.
Residential:
Woodhill Bay
people and property
Health)
- - - - - - -
of tidal flooding.
of tidal flooding.
Residential properties along
coast are not at risk of tidal
flooding.
realignment will therefore
have an adverse effect on
coastal properties.
Local commercial
assets
- - - - - - - -

and economic assets
and Human Health)
Local commercial assets are
No assets to be
protected/affected by
retreated line
Health)
- - - - - - - -
None present None present None present None present
Portishead Pier to
Black Nore SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
- - -
-
subject to coastal
processes
Defences may damage
exposure; however
operate
however likely that
National nature
conservation
designations:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
Fauna)
-
occur
intertidal habitats
maintained
historic interest.
cultural historic
Environment)
- - - - - - - -
High number of non-
designated archaeological
features along this reach
of coastline. Assets along
coast are not at risk of
tidal flooding.
Assets along coast are not
Local historical assets along
flooding.
alignment. Historical
assets along coast are not
line with existing
targets/plans
- - - - -
intertidal habitats
maintained. Terrestrial
maintain intertidal habitats;
however terrestrial be

habitats possible affected affected
Avoid/minimise
which may have long
term health impacts
Health)
- - - - - - -
-
of tidal flooding.
of tidal flooding.
Residential properties along
the coast are not at risk of
tidal flooding.
realignment in this location
will therefore have an
adverse effect.
resources (Water)
- - - - - - - -
at risk.
at risk.
risk.
at risk.
quality (Water)
- - - - - - - -
at risk.
at risk.
risk.
at risk.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- _ _ _
of defences indefinitely.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
structure.
Summary
The landscape character at the shoreline is dominated by the presence of the primarily recreational marine
lake. The marine lake is located directly on the shoreline, at risk from even minimal erosion rates of change
over the long term. Under a scenario of no active intervention the marine lake will lose its integrity over time
and gradually be taken by the sea, thus the current character of the landscape will be lost.

The ‘With Present Management’ policy (set by SMP1) for PORT3 – southern extent of Esplanade Road to
Ladye Point – is:
Kilkenny Bay to Redcliff Bay Do nothing Do Nothing, locally Retreat the
Line (provisional option)
Do Nothing, locally Retreat the Line
(provisional option)
Redcliff Bay to Ladye Point Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the southern extent of
Esplanade Road to Ladye Point shoreline can be compared with alternative management policies through
Policy Unit – Portishead and Clevedon - southern extent of Esplanade Road to Ladye Point (PORT 3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
Coastal squeeze will occur Coastal squeeze will occur Coastal squeeze will occur
because the coastline will
not erode fast enough for
habitats to roll back.
intertidal habitats
maintained
Objectives
Recreational sites:
Golf Course
key community,
facilities
- - - - - - -
flooding.
flooding.
flooding
the sea front (including the
golf course) will be
adversely affected due to
realignment.
Residential:
Redcliff Bay residential
developments, West
Hill, Walton in Gordano
people and property
- - - - - - -
-
along the coast are not at
risk of tidal flooding.;
have an adverse impact
Infrastructure:
IRB, Petrol Storage Site
- - - - - - -

Infrastructure is not at risk
of tidal flooding.;
of tidal flooding.;
of tidal flooding.;
of tidal flooding.;
Local commercial
assets
and economic assets
and Human Health)
- - - - - - - -
and land are not at risk of
flooding.
flooding.
flooding.
assumed that the
alignment will not move far
inland. Local commercial
assets are not at risk of
flooding.
Portishead Pier to
Black Nore SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
- - -
subject to coastal
processes
Defences may damage
exposure; however
operate
however likely that
National nature
conservation
designations:
Severn Estuary, Holly
Lane, Walton Common
and Gordano Valley
SSSIs
managing adverse
locally designated
conservation sites.
Fauna)
- -
Walton Common and
Holly Lane SSSIs
unaffected by tidal
flooding now and in
future.
Coastal squeeze will affect
Gordano Valley unaffected
Coastal squeeze will affect
Gordano Valley unaffected
Intertidal habitats of Severn
SSSI will roll back
intertidal habitats
maintained. Assume
Gordano Valley far enough
inland to be unaffected
historic interest.
cultural historic
Environment)
- - - - - - -
Local historical assets are Local historical assets are Local historical assets are Impact will depend on

not at risk of flooding. not at risk of flooding. not at risk of flooding. alignment line. Historical
assets may be affected.
line with existing
targets/plans
- -
due to coastal squeeze. Loss of intertidal habitat
The coastline will not erode
back fast enough for
back.
Avoid/minimise
which may have long
term health impacts
Health)
- - - - - - -
of tidal flooding.
of tidal flooding
of tidal flooding
of tidal flooding.
realignment would
therefore cause increased
stress to communities
along coast
Source Protection Zone
1
Water resources are
protected (Water)
- - - - - - - -
Source protection zone 1
is not at risk of being
flooded.
flooded.
Source protection zone 1 is
not at risk of being flooded.
flooded.
quality (Water)
- - - - - - - -
at risk.
at risk.
at risk.
at risk.
(Air and Climate)
_ _ _
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
presence in the
disrupting views.
landscape (whether
Summary
Although there is no flooding and minimal erosion at the shoreline, many features are in close proximity of
the shore and subject to erosion.
The petrol storage site is a Key Policy Driver for this unit – it is within the erosion risk zone over the long
term and has the potential to have a significant negative impact on the environment and water quality if
affected.

The 0 to 20 year flood cell from the shoreline at PORT1 includes sections of source protection zone 1. Saline
intrusion from flooding may alter chemical status of groundwater. To hold the line following a breach of the
defences under a No Active Intervention Scenario will be significantly positive for the

The ‘With Present Management’ policy (set by SMP1) for PORT4 – Ladye Point to Old Church Road – is:
Clevedon Hold the Line (do nothing locally) Hold the Line, locally Retreat the
Line or Do Nothing
Hold the Line, locally Do Nothing
The impact on the agreed objectives of continuing with present management policy at the Ladye Point to Old
Church Road shoreline can be compared with alternative management policies through the following table:
Policy Unit – Portishead and Clevedon - Ladye Point to Old Church Road
(PORT 4)
0-20 20-50 50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Residential:
Clevedon
people and property
-
Residential properties in
Clevedon will be
protected.
Clevedon will be protected.
Clevedon will be at an
Clevedon will be
protected
Clevedon Hospital
(Population and
Human Health)
- -
Hospital potentially at risk
under NAI. Asset will be
protected
Asset will be protected. Asset will be at an
Asset will be protected.
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
their features
- -
occur
Coastal squeeze will occur Limited potential for roll
back of habitats due to
development; intertidal
habitats will be lost
Limited potential for
realignment due to
development; intertidal
habitats will be lost
Objectives
Recreational sites:
Local facilities,
footpath network and
seafront esplanade
key community,
and Human Health)
- -
Only western section of
unit affected by flooding
under NAI. Recreational
Recreational assets will be
protected.
Recreational assets will be
adversely affected.
- - - - - - -

Local commercial
assets
and economic assets
and Human Health)
Land use is predominantly
residential. Limited
economic assets at risk
economic assets at risk from
tidal flooding .
economic assets at risk
from tidal flooding
Realignment may
tourism assets along the
seafront e.g. pier.
Clevedon Shore SSSI
SSSIs (Land Use,
Geology and Soils -
including
Geomorphology and
Contaminated Land)
- - - -
subject to coastal
processes
Defences may damage
exposure; however
operate
however likely that
leave the exposure
subject to natural
processes
National nature
conservation
designations:
Severn Estuary and
SSSI
managing adverse
locally designated
conservation sites.
Fauna)
- -
occur
Coastal squeeze will occur Coastal squeeze will occur
because the coastline will
not erode fast enough for
habitats to roll back.
intertidal habitats
maintained
Historic Park and
Garden:
Clevedon Court
cultural historic
Environment)
- - - - - - - -
Local historical assets are
not at risk of flooding or
erosion
not at risk of flooding
assumed that the
alignment will not move
far inland. Historical
assets are not at risk of
flooding.
line with existing
- -

targets/plans
Church and Wains Hills
LNR
due to coastal squeeze
to coastal squeeze.
The coastline will not erode
back fast enough for
back
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
- -
Clevedon will be
protected.
Clevedon will be protected.
Clevedon will be at an
Clevedon will be
protected.
Water resources are
protected (Water)
- - - - - - - -
at risk.
risk.
at risk.
at risk.
quality (Water)
- - - - - - - -
at risk
risk
at risk
at risk
adapt to or
accommodate climate
change trends.
(Air and Climate)
_ _ _
of defences indefinitely.
property.
accommodate climate
change.
(Landscape)
- - - -
presence in the
disrupting views.
landscape (whether
landscape due to
structure

4.15 Kingston Seymour to Sand Bay Theme Area (KIN)
The ‘With Present Management’ policy (set by SMP1) for KIN1 – Old Church Road to St Thomas’ Head – is:
Wains Hill to St Thomas’s Head Hold the Line Hold the Line Hold the Line or Retreat the Line
The impact on the agreed objectives of continuing with present management policy at the Old Church Road
to St Thomas’ Head shoreline can be compared with alternative management policies through the following
table:
Policy Unit – Kingston Seymour to Sand Bay - Old Church Road to St Thomas’ Head
(KIN 1)
Realignment
0-20 20-
50
50 -
100
0-20 20-50 50 - 100 0-20 20-50 50 - 100 0-20 20-
50
50 -
100
Key Policy Drivers
Critical
Infrastructure:
M5
Kingston Seymour
STW
Electricity
substations
Reduce significance
with flooding and
erosion to critical
infrastructure
(Population and
Human Health)
-
protected from
flooding.
Critical infrastructure protected
from flooding.
Critical infrastructure at an
alignment line. There
may be impacts on the
Kingston and Seymour
STW (600m from the
coast).
International
Nature
Conservation
Sites:
Severn Estuary
Ramsar, SAC and
SPA
Reduce significance
integrity of
internationally
the favourable
condition of their
features
- -
occur
Coastal squeeze will occur Habitats will roll back , intertidal
habitats maintained
intertidal habitats
maintained
Residential:
Clevedon
Wick St. Lawrence,
Kingston Seymour
and isolated
properties
Reduce significance
with flooding and
erosion to people
and property
- -

Residential
properties in south
Clevedon and the
villages including
Wick St Lawrence
and Kingston
Seymour are at risk.
Policy will protect
them.
Residential properties in south
Clevedon and the villages
including Wick St Lawrence and
Kingston Seymour are at risk.
Policy will protect them.
Residential properties in south
Clevedon and the villages
including Wick St Lawrence and
Kingston Seymour are at risk.
Policy will not protect them.
alignment line. Some
adverse local impacts
for wider community
benefit .
Theme Area High
Level Objectives
Industrial,
commercial and
economic assets:
Agriculture
Agricultural land,
caravan and
camping parks
south of Clevedon.
Reduce significance
with flooding and
commercial and
economic assets
(including
agricultural), and
tourism)
- -
Agriculture main land
use; assets
protected.
Assets protected. Assets at an increased rick of
flooding.
new line; some local
impacts offset by wider
benefits due to large
area at risk.
Recreational sites:
Local facilities,
footpath network
and open space
Reduce significance
with flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
- -
Golf course south of
Clevedon and
network of footpaths
across area will be
protected.
Golf course south of Clevedon
and network of footpaths across
area will be protected.
Golf course south of Clevedon
and network of footpaths across
area will be adversely affected.
local adverse impacts
for wider community
benefit
National nature
conservation
designations:
Severn Estuary
Reduce significance
with managing
adverse impacts on
designated
conservation sites.
and Fauna)
- -
occur.
Coastal squeeze will occur. Habitats will roll back intertidal
habitats maintained.
intertidal habitats
maintained.
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
- -

4 SAMs including
Woodspring Priory
and many listed
buildings in villages.
Reduce significance
of impact to
scheduled and
locally, regionally
and nationally
important cultural
sites and their
setting. (Historic
Environment)
Historical assets
protected from
flooding.
Historical assets protected from
flooding.
increased flooding.
assumed that the
alignment will not move
far inland. Historical
assets protected from
flooding.
Maintain and
enhance
Biodiversity Action
Plan habitats and
existing
targets/plans
- -
Loss of intertidal
habitat due to coastal
squeeze.
coastal squeeze.
Space for terrestrial and intertidal
habitats to roll back
maintain intertidal
habitats; plus sufficient
space for terrestrial
habitats
Avoid/minimise
environmental
impacts which may
have long term
health impacts
anxiety associated
with flood and
erosion risk)
(Population and
Human Health)
- -
Populations in south
Clevedon and the
villages including
Wick St Lawrence
and Kingston
Seymour are at risk.
Policy will reduce
concern.
Populations in south Clevedon
and the villages including Wick St
Lawrence and Kingston Seymour
are at risk. Policy will reduce
concern.
Populations in south Clevedon
and the villages including Wick St
Lawrence and Kingston Seymour
are at risk. Policy will not reduce
concern.
local impacts for wider
community benefit
Water resources are
protected (Water)
- - - - - - - -
No resources known
to be at risk.
No resources known to be at risk. No resources known to be at risk. No resources known to
be at risk.
No detriment to
water quality
(Water)
Clevedon Source
Protection Zone
Kingston Seymour
STW
-
Protection of
Clevedon source
protection zone and
of Kingston Seymour
STW.
Protection of Clevedon source
protection zone and of Kingston
Seymour STW.
Clevedon source protection zone
and Kingston Seymour STW at
risk of tidal flooding and being
adversely affected by saline
intrusion.
Protection of Clevedon
source protection zone
and of Kingston
Seymour STW.
adapt to or
accommodate
climate change
_ _ _

trends.
(Air and Climate)
Can not raise the
height of defences
indefinitely.
property.
accommodate climate
change.
Avoid detrimental
character
(Landscape)
- - - -
Ever increasing
height of the
defences will affect
local landscape in
terms of character
(increasing presence
in the landscape):
also a visual impact
with defences
disrupting views.
negative depends on perception).
and structure.
Increasing the
may alter the local
landscape (whether
depends on
local change to
landscape due to
and structure.

The ‘With Present Management’ policy (set by SMP1) for KIN2 – St Thomas’ Head to Middle Hope car
park (Sand Point) – is:
St Thomas’s Head to Sand Point Do nothing Do Nothing Do Nothing
Sand Point to Middle Hope Car Park Do nothing Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the St Thomas’ Head
to Middle Hope car park (Sand Point) shoreline can be compared with alternative management policies
Policy Unit – Kingston Seymour to Sand Bay - St Thomas’ Head to Middle Hope car park (Sand Point)
(KIN 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites
Severn Estuary
Ramsar, SAC and
SPA
maintaining the
integrity of
internationally
the favourable
condition of their
features
N/A
geology ATL is not
- N/A. MR not feasible due
to topography; unit is
located on steep headland
Theme Area High
Level Objectives
National nature
conservation
designations:
Severn Estuary &
Middle Hope SSSI
managing adverse
conservation sites
N/A
geology ATL is not
-
/ /
N/A. MR not feasible due
Severn : Coastal squeeze
will occur. Middle Hope –
calcareous grassland
interest on top of cliff so no
impact
Habitats will roll back, albeit
very slowly due to
geology/topography so
intertidal habitats maintained.
Possible impact to calcareous
grassland as cliff retreats
Industrial,
commercial and
economic assets:
Agriculture
and economic assets
and activities
(including tourism)
N/A
geology ATL is not
- - - - - N/A. MR not feasible due

No assets at risk No assets at risk
Isolated Residential
properties of Middle
Hope
people and property
(Population and
Human Health)
N/A
geology ATL is not
- - - - - - N/A. MR not feasible due
No properties at risk from
tidal flooding via this unit
No properties at risk from
tidal flooding via this unit
Recreational sites:
footpath network
key community,
recreational and
amenity facilities.
(Population and
Human Health)
N/A
geology ATL is not
Footpaths on the Middle
Hope headland and LNR
not affected by flooding via
this unit; access severed
due to flooding to the rear
of the unit (see PU?)
Footpaths on the Middle
Hope headland and LNR not
affected by flooding via this
unit; access severed due to
flooding to the rear of the unit
(see PU?)
Middle Hope SSSI
maintaining the
visibility of geological
exposures throughout
geological SSSIs
(Land Use, Geology
and Soils -including
Geomorphology and
Contaminated Land)
- -
subject to coastal
processes
Defences may damage
exposure; however
operate
however likely that
Critical
Infrastructure:
(Population and
Human Health)
N/A
geology ATL is not
No critical infrastructure
present.
No critical infrastructure
present.
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
impact to scheduled
and nationally
important cultural
(Historic
Environment)
N/A
geology ATL is not
No historic environment
assets will be impacted.
assets will be impacted.
Biodiversity Action
Plan habitats and
N/A
geology ATL is not
- - N/A. MR not feasible due

Topography will limit degree
of rollback
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
N/A
geology ATL is not
No residential properties at
risk from tidal flooding via
this frontage
risk from tidal flooding via this
frontage
Water resources are
protected (Water)
N/A
geology ATL is not
No water resource assets
at risk of being affected.
No water resource assets at
risk of being affected.
quality (Water)
N/A
geology ATL is not
- - - - - -
No known features at risk. No known features at risk.
adapt to or
accommodate climate
change trends.
(Air and Climate)
N/A
geology ATL is not
Can not raise height of the
change.
Avoid detrimental
character
(Landscape)
N/A
geology ATL is not
- - - N/A. MR not feasible due
presence in the
disrupting views.
Unit not affected by tidal
flooding; limited erosion. No
impact

The ‘With Present Management’ policy (set by SMP1) for KIN3 – Middle Hope car park to southern extent
of Beach Road – is:
Middle Hope Car Park to South
Kewstoke
The impact on the agreed objectives of continuing with present management policy at the Middle Hope car
park to southern extent of Beach Road shoreline can be compared with alternative management policies
Policy Unit – Kingston Seymour to Sand Bay - Middle Hope car park to southern extent of Beach Road
(KIN 3)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites
Severn Estuary
Ramsar, SAC and
SPA
maintaining the
integrity of
internationally
the favourable
condition of their
features
- -
Loss of intertidal habitat Coastal squeeze will occur. Habitats will roll back,
intertidal habitats
maintained. Some
restrictions due to
development along the
coast
maintain intertidal
habitats; Some restrictions
due to development along
the coast
Theme Area High
Level Objectives
Residential:
Sand Bay. Kewstoke
Holiday Camp
people and property
-
Protected from flooding Protected from flooding Residential areas at
increased risk form
flooding
Large numbers of
concentrated along coast
potentially affected by
retreating line
Recreational sites:
Local facilities,
footpath network and
seafront esplanade
key community,
recreational and
amenity facilities.
(Population and
Human Health)
-
Existing assets protected Assuming standard of
protection maintained or
increased recreation assets
including the beach front will
be protected
Flood risk will increase Beach road and the public
car parks along it may be
affected.

Industrial,
commercial and
economic assets:
Agriculture,
Tourism/Commercial
holiday and caravan
parks
and economic assets
and Human Health)
-
Existing assets will be
protected
Local commercial assets are
present such as holiday park
and caravan parks will be
protected.
Increased flood risk over
time.
Negative impact on
caravan parks, holiday
park and potential loss of
agricultural land. Wider
benefit to areas behind
line
Critical
infrastructure: M5
Two electricity
substations
(Population and
Human Health)
-
Reduced risk of flooding
for beach road. Path
network could be
developed.
Infrastructure will be protected. Increased flood risk over
time. This will not protect
the electricity substations
which are present in Sand
Bay.
Beach road will be
affected and electricity
substations could be put
at more risk.
National nature
conservation
designations:
Severn Estuary SSSI
managing adverse
conservation sites.
and Fauna)
- -
Loss of intertidal habitat Coastal squeeze will occur Habitats will roll back ,
intertidal habitats
maintained
maintain intertidal
habitats.
Scheduled
Monuments, Listed
Buildings and non-
designated sites of
historic interest.
impact to scheduled
and nationally
important cultural
(Historic
Environment)
- - - - -
assets that will be
impacted on.
Historic environment assets
protected. .
Flood risk will increase
Limited historic
environment assets that
will be impacted .
Impact depends on
alignment; potentially
some local impacts but
greater number of assets
protected
Biodiversity Action
Plan habitats and
- -

coastal squeeze.
intertidal habitats
maintained
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
-
Limited residential
properties at
risk/protected
at risk/protected
Limited residential
properties at risk increased
flood risk
properties and caravan
parks may be affected.
Water resources are
protected (Water)
- - - - - - - -
quality (Water)
No known features at risk. No known features at risk. No known features at risk. No known features at risk.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - -
climate change.
accommodate climate
change.
Avoid detrimental
character
(Landscape)
- - - -
presence in the
disrupting views.
character (increasing presence
in the landscape): also a visual
disrupting views.

The ‘With Present Management’ policy (set by SMP1) for KIN4 – southern extent of Beach Road to
Birnbeck Island – is:
South Kewstoke to Birnbeck Island Do nothing (locally hold) Do Nothing (locally Hold the
Line)
Do Nothing (locally Hold the Line or
Do Nothing)
The impact on the agreed objectives of continuing with present management policy at the southern extent of
Beach Road to Birnbeck Island shoreline can be compared with alternative management policies through the
following table:
Policy Unit – Kingston Seymour to Sand Bay - southern extent of Beach Road to Birnbeck Island
(KIN 4)
Advance the
Line
Hold the Line No Active Intervention Managed
Realignment
0-
20 20-
50
50
-
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-
20 20-
50
50 - 100
Key Policy
Drivers
International
Nature
Conservation
Sites
Severn Estuary
Ramsar, SAC
and SPA
Reduce
significance of
impact
associated with
maintaining the
integrity of
internationally
designated sites
and the
favourable
condition of their
features
- - -
N/A
Managed
realignment is
considered to be an
this Policy Unit due
to elevated
topography.
Intertidal
habitat loss of
internationally
designated
sites
Coastal squeeze will occur Habitats will roll back, all be it
slowly due to elevated
topography
Critical
Infrastructure:
Lifeboat Station
To manage the
risk of flooding
and erosion to
critical
infrastructure.
- - N/A
Managed
realignment is
considered to be an
to elevated
topography
Advancing the
line may have
adverse effects
on the lifeboat
station.
Asset protected. Lifeboat station will not be
protected and will be at an
Theme Area
High Level
Objectives
Future
Development
Opportunity –
Birnbeck Island
Reduce
significance of
impact
associated with
flooding and
erosion to
- - N/A
Managed
realignment is
considered to be an
this Policy Unit. due
to elevated
topography

industrial,
commercial and
economic assets
(including
agricultural), and
activities
(including
tourism)
Residential:
Weston
Reduce
significance of
impact
associated with
flooding and
erosion to people
and property
- - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
Recreational
sites:
Local facilities
and footpath
network
Reduce
significance of
impact
associated with
flooding and
erosion to key
community,
recreational and
amenity facilities.
(Population and
Human Health)
- - - - - - - N/A Managed
realignment is
considered to be an
to elevated
topography
Features not at
flood risk now
or under future
scenarios.
Unaffected by
advance the
line
Features not at flood risk now
or under future scenarios.
Features not at flood risk now
or under future scenarios.
Industrial,
commercial and
economic
assets:
Local
commercial
assets
Reduce
significance of
impact
associated with
flooding and
erosion to
industrial,
commercial and
economic assets
(including
agricultural), and
activities
(including
tourism)
(Population and
Human Health)
- - - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
There are
limited
industrial,
commercial
and economic
present within
this reach ; no
assets at risk
There are limited industrial,
commercial and economic
present within this reach ; no
assets at risk from tidal
flooding; no impact
There are limited industrial,
commercial and economic
present within this reach ; no
assets at risk from tidal
flooding; no impact

from tidal
flooding ; no
impact .
Infrastructure:
Local road and
paths networks
Reduce
significance of
impact
associated with
flooding and
erosion to critical
infrastructure
(Population and
Human Health)
- - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
No risk of tidal
flooding via the
frontage within
this unit; no
impact from
ATL
No risk of tidal flooding via
the frontage within this unit;
no impact
no impact
Spring Cove
Cliffs SSSIs
Reduce
significance of
impact
associated with
maintaining the
visibility of
geological
exposures
throughout
geological SSSIs
(Land Use,
Geology and
Soils -including
Geomorphology
and
Contaminated
Land)
- - - N/A
Managed
realignment is
considered to be an
to elevated
topography
Cliffs no longer
exposed to
natural erosive
processes;
exposure will
become buried
Defences may damage
exposure; otherwise impact
will depend on whether
defences are in front or
behind the cliffs. However
defences unlikely as no flood
risk here.
Cliffs will remain exposed to
natural erosive processes
National nature
conservation
designations:
Severn Estuary
SSSI
Reduce
significance of
impact
associated with
managing
adverse impacts
on nationally and
locally
designated
conservation
sites.
(Biodiversity,
Flora and
Fauna)
- - N/A
Managed
realignment is
considered to be an
to elevated
topography
Coastal
squeeze will
occur
Coastal squeeze will occur habitats will roll back all be it
slowly due to elevated land
behind
Scheduled
Monuments,
Listed
Buildings and
non-designated
- - - - - - - N/A
Managed
realignment is
considered to be an

sites of historic
interest. Reduce
significance of
impact to
scheduled and
locally, regionally
and nationally
important cultural
historic
environment
sites and their
setting. (Historic
Environment)
to elevated
topography
No risk of tidal
flooding via the
frontage within
this unit; no
impact from
ATL .
no impact
No risk of tidal flooding via the
frontage within this unit; no
impact
Maintain and
enhance
Biodiversity
Action Plan
habitats and
species in line
with existing
targets/plans
- - N/A
Managed
realignment is
considered to be an
to elevated
topography
Loss of
intertidal
habitat due to
coastal
squeeze.
to coastal squeeze.
Habitats will roll back all be it
slowly due to elevated
topography
Avoid/minimise
environmental
impacts which
may have long
term health
impacts
(including stress
and anxiety
associated with
flood and erosion
risk)
(Population and
Human Health)
- - - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
Limited
residential
properties at
risk/protected
at risk/protected
at risk/protected
Water resources
are protected
(Water)
- - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
No water
resource
assets at risk
of being
affected.
No detriment to
water quality
(Water)
- - - - - - - N/A
Managed
realignment is
considered to be an
to elevated
topography
No known
features at risk.
No known features at risk. No known features at risk.
Policy is _ _ _ N/A

designed to
adapt to or
accommodate
climate change
trends.
(Air and
Climate)
Managed
realignment is
considered to be an
to elevated
topography
Can not raise
the height of
the defences
indefinitely.
change.
Avoid detrimental
effects to
landscape
character
(Landscape)
- - - N/A
Managed
realignment is
considered to be an
to elevated
topography
Ever increasing
height of the
defences will
affect local
landscape in
terms of
character
(increasing
presence in the
landscape):
also a visual
impact with
defences
disrupting
views.
The local landscape may
erode faster (whether positive
structure.

4.16 The Holms Theme Area (HOL)
The ‘With Present Management’ policy (set by SMP1) for HOL1 – Flat Holm – is:
Flat Holm Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the Flat Holm
Policy Unit – The Holms – Flat Holm (HOL 1)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
Severn Estuary
Ramsar, SAC and SPA
of internationally
the favourable condition
of their features
- - -
N/A
considered
Loss of intertidal habitats Currently no defences in
place Coastal squeeze will
habitat
Currently no defences in
and ultimately terrestrial
habitat
Heritage:
Scheduled
Monuments:
Palmerstonian Gun
Batteries and WWII
anti aircraft batteries
impact to scheduled
and nationally important
cultural historic
their setting
- - - - - - - N/A
considered
Historical sites not at risk
Historical sites not at risk of
flooding/erosion.
flooding/erosion.
Lighthouse, Landing
Pier
- - - - - -
N/A
considered
Advancing the line would
make assets redundant
/inaccessible
Infrastructure not at risk of
flooding.
Infrastructure not at risk of
flooding.
Theme Area High
Level Objectives
Residential:
Lighthouse provides
isolated residency
people and property
(Population and
Human Health)
- - - - - - -
N/A
considered
Limited residential
properties at risk /
Limited residential
Limited residential

protected. Lighthouse not
National nature
conservation:
Severn Estuary SSSI
managing adverse
locally designated
conservation sites.
and Fauna)
/
- - - - N/A
considered
Loss of intertidal habitats
but gain of terrestrial
habitat
habitat
line with existing
targets/plans
- - - - N/A
considered
Loss of intertidal and
ultimately terrestrial habitat
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
- - - - - - -
N/A
considered
risk / protected.
risk / protected.
risk / protected.
Water resources are
protected (Water)
- - - - - -
N/A
considered
quality (Water)
- - - - - -
N/A
considered
No known features at risk. No known features at risk. No known features at risk.
adapt to or
accommodate climate
change trends.
(Air and Climate)
_ _ _
N/A
considered
climate change.
Avoid detrimental
character (Landscape) - - -
N/A
considered
presence in the
disrupting views.
Limited change anticipated
.

Summary
The shoreline of Flat Holm is included in the internationally recognised nature conservation designations of
the Severn Estuary, advancement of the current shoreline out into the estuary will have a negative impact on
the sites. To physically hold the line will also have a negative impact on the environment and nature
conservation – engineering works will prevent natural interactions at the shoreline that generate the present
habitats.
Due to the hard rock geology of Flat Holm, and subsequent stable shoreline, the failure to hold the line will
not have a positive or negative impact on landscapes adaptation /accommodation of climate change. The
hard rock geology and negligible movement of the shoreline over the next century ensures there is no impact
from flooding or erosion on the nationally recognised heritage features on Flat Holm.

The ‘With Present Management’ policy (set by SMP1) for HOL2 – Steep Holm – is:
Flat Holm Do Nothing Do Nothing
The impact on the agreed objectives of continuing with present management policy at the Steep Holm
Policy Unit – The Holms – Steep Holm (HOL 2)
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
0-20 20-50 50 -
100
Key Policy Drivers
Conservation Sites:
Severn Estuary
Ramsar, SAC and
SPA
maintaining the
integrity of
internationally
the favourable
condition of their
features
- - - N/A
considered
habitat
habitat
Heritage:
Scheduled
Monuments:
Palmerstonian Gun
Batteries
impact to scheduled
and nationally
important cultural
sites and their setting
- - - - - - - N/A
considered
flooding/erosion.
flooding/erosion.
flooding/erosion.
Theme Area High
Level Objectives
National nature
conservation:
Severn Estuary SSSI
managing adverse
conservation sites.
and Fauna)
- - - - N/A
considered
habitat
habitat
Loss of intertidal habitats
but gain of terrestrial
Biodiversity Action
- - - N/A

Plan habitats and
considered
coastal squeeze.
coastal squeeze.
Loss of intertidal and
ultimately terrestrial habitat
Avoid/minimise
which may have long
term health impacts
(Population and
Human Health)
- - - - - - - N/A
considered
risk / protected.
risk / protected.
risk / protected.
Water resources are
protected (Water)
- - - - - - - N/A
considered
quality (Water)
- - - - - - - N/A
considered
No known features at risk. No known features at risk. No known features at risk.
adapt to or
accommodate climate
change trends.
(Air and Climate)
- - - N/A
considered
climate change.
Avoid detrimental
character
(Landscape)
- - - N/A
considered
Limited change anticipated
Summary
Steep Holm is an important site for nature conservation. Advancement of the current shoreline out into the
estuary will have a negative impact on the internationally recognised environment and nature conservation
sites. To physically hold the line will also have a negative impact on the environment and nature
conservation – engineering works will prevent natural interactions at the shoreline that generate the present
habitats.
Due to the hard rock geology of Steep Holm, and subsequent stable shoreline, the failure to hold the line will
not have a positive or negative impact on landscapes adaptation /accommodation of climate change. The
hard rock geology and negligible movement of the shoreline over the next century ensures there is no impact
from flooding or erosion on the nationally recognised heritage features on Steep Holm.

Appendix f policy development and appraisal final_dec2010

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Appendix f policy development and appraisal final_dec2010