Littlehampton Arun East Bank flood risk management scheme environmental statement

203 Pages·2013·53.57 MB·English

Littlehampton Arun East Bank
Tidal Walls Flood Defence Scheme
Environmental Statement
Volume Two – Main Text
May 2013
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River Arun East Bank, Environmental Statement, Draft
We are the Environment Agency. We protect and improve the
environment and make it a better place for people and wildlife.
We operate at the place where environmental change has its
greatest impact on people’s lives. We reduce the risks to people
and properties from flooding; make sure there is enough water
for people and wildlife; protect and improve air, land and water
quality and apply the environmental standards within which
industry can operate.
Acting to reduce climate change and helping people and wildlife
adapt to its consequences are at the heart of all that we do.
We cannot do this alone. We work closely with a wide range of
partners including government, business, local authorities, other
agencies, civil society groups and the communities we serve.

Published by:

Environment Agency
Horizon house, Deanery Road
Bristol BS1 5AH
Email: enquiries@environment-
agency.gov.uk
www.environment-agency.gov.uk

Further copies of this report are available
© Environment Agency 2011
from our publications catalogue:

http://publications.environment-
All rights reserved. This document may be
agency.gov.uk or our National Customer
reproduced with prior permission of
Contact Centre: T: 03708 506506
the Environment Agency.
Email: enquiries@environment-

agency.gov.uk.

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River Arun East Bank, Environmental Statement, Draft
Environmental Statement
Volume Two - Main Text

Project name Littlehampton Arun East Bank Tidal Walls Flood Defence Scheme
Project 1B1S reference IMSO001021
Region and Area South East

Date 29-05-13
Version number 1
Author E Joanna Walker

Revision history
Revision Summary of changes Author Version
date number
May 2013 First issue, Final E Joanna Walker 1

Approvals
Name Signature Title Date Version
Fiona Brown Fiona Brown Director, Halcrow Group 29-5-13 1
(Ch2mhill)
Imran Bukhari Imran Bukhari Project Director Europe, 29-5-13 1
Halcrow Group (Ch2mhill)

Distribution
Name Title Date Version
Cian Cronin Senior Planner (Strategic Development), Arun District 30-5-13 1
Council
Richard Woodward Senior Environmental Project Manager, national 30-5-13 1
Environmental Assessment Services, Environmental
Agency
Peter Borsberry NCMPS Project Manager, Environment Agency 30-5-13 1
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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
EIA Quality Mark
This Environmental Statement, and the Environmental Impact Assessment (EIA) carried
out to identify the significant environmental effects of the proposed development,
was undertaken in line with the EIA Quality Mark Commitments.

The EIA Quality Mark is a voluntary scheme, operated by the Institute of Environmental
Management and Assessment (IEMA), through which EIA activity is independently
reviewed, on an annual basis, to ensure it delivers excellence in the following areas:

EIA Management
EIA Team Capabilities
EIA Regulatory Compliance
EIA Context & Influence
EIA Content
EIA Presentation
Improving EIA practice

To find out more about the EIA Quality Mark please visit:
www.iema.net/qmark
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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
Non-Technical Summary
A Non-Technical Summary has been prepared which aims to provide sufficient
information for a member of the public to understand the significant environmental
effects of the proposed scheme without having to refer to the main text.
The Non-Technical Summary is available as a stand-alone document at the same
location as the Environment Statement. A short summary of the key findings is also
presented in final chapter of this Volume of the Environmental Statement.

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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
Contents

Part One – The Proposed Scheme

1 Background 1
2 Project development 7
3 Scheme description 14
4 Key issues and methodology 24

Part Two – Assessment of the Scheme

5 Acoustics 31
6 Archaeology and heritage 39
7 Biodiversity 52
8 Ground conditions 63
9 Landscape, townscape and visual issues 71
10 Land use 82
11 Traffic and transportation 86
12 Water resources and flood risk 94
13 Other issues 103
14 Cumulative impacts and inter-relationships 106
15 Planning and legislation 109
16 Summary 114
17 References 116

Environmental Action Plan

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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
Landscape Masterplans
3483 PL 101 Landscape Masterplan Reach 1 (Sheet 1 of 3)
3483 PL 102 Landscape Masterplan Reach 1 (Sheet 2 of 3)
3483 PL 103 Landscape Masterplan Reach 1 (Sheet 3 of 3)
3483 PL 104 Landscape Masterplan Reach 2
3483 PL 105 Visualisations Reaches 1 and 2
3483 PL106 Section Elevations Reaches 1 and 2
3483 PL 107 Landscape Masterplan Reach 3
3483 PL 108 Landscape Masterplan Reach 4
3483 PL 109 Details Reach 4
3483 PL 110 Landscape Masterplan Reach 5 (Sheet 1 of 2)
3483 PL 111 Landscape Masterplan Reach 5 (Sheet 2 of 2)
3483 PL 112 Landscape Masterplan Reach 6 (Sheet 1 of 2)
3483 PL 113 Landscape Masterplan Reach 6 (Sheet 2 of 2)

Engineering Drawings
463457-CIVIL-100-P1 Reaches 1 and 2 General Arrangement Plan
(Sheet 1 of 2)
463457-CIVIL-101-P1 Reaches 1 and 2 General Arrangement Plan
(Sheet 2 of 2)
463457-CIVIL-103-P2 Reaches 1 and 2 General Arrangement Sections
463457-CIVIL-300-P1 Reach 3B (private frontage) General Arrangement
Plan
463457-CIVIL-301-P1 Reach 3B (private frontage) General Arrangement
Sections
463457-CIVIL-302-P1 Reach3B (private frontage) General Arrangement
Elevations
463457-CIVIL- 400-P2 Reach 4 General Arrangement Plan
463457-CIVIL- 401-P2 Reach 4 General Arrangement Sections
463457-CIVIL-500-P2 Reach 5A (Arun View public house) General
Arrangement Plan
463457-CIVIL-501-P2 Reach 5A (Arun View public house) General
Arrangement Sections
463457-CIVIL-550-P2 Reach 5B (Arun View public house) General
Arrangement Plan
463457-CIVIL-560-P1 Reach 5B Details
463457-CIVIL-600-P3 Reach 6 General Arrangement Plan (Sheet 1 of 2)
463457-CIVIL-601-P3 Reach 6 General Arrangement Plan (Sheet 2 of 2)
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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
463457-CIVIL-602-P2 Reach 6 General Arrangement Sections (Sheet 1 of 3)
463457-CIVIL-603-P2 Reach 6 General Arrangement Sections (Sheet 2 of 3)
463457-CIVIL-604-P2 Reach 6 General Arrangement Sections (Sheet 3 of 3)

Figures
Figure 1.1 Site location plan
Figure 1.2 Site location plan in local context
Figure 1.3 Plan of scheme reaches and planning requirements
Figure 2.2 Key environmental features, South
Figure 2.2 Key environmental features, North
Figure 6.1 Designated cultural heritage assets - North
Figure 6.2 Designated cultural heritage assets - South
Figure 6.3 Non-designated cultural heritage assets - North
Figure 6.4 Non-designated cultural heritage assets - South
Figure 6.5 Rapid coastal zone assessment data
Figure 6.6 Historic landscape character data
Figure 6.7 Archaeological sensitivity plan
Figure 6.8 Ground investigation results and known archaeology
Figure 6.9 Ordnance survey West Sussex sheets LXIII/13, 1:2500, 1876 ,
Reach 6
Figure 7.1 Phase 1 habitat plan
Figure 8.1 Geo-environmental interpretative long sections (1 of 4)
Figure 8.2 Geo-environmental interpretative long sections (2 of 4)
Figure 8.3 Geo-environmental interpretative long sections (3 of 4)
Figure 8.4 Geo-environmental interpretative long sections (4 of 4)

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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
List of abbreviations

ADC Arun District Council
BAP Biodiversity Action Plan
BGS British Geological Survey
dB decibel
dB(A) A-weighted decibel
DBA Desk-Based Assessment
DEFRA Department for Environment, Food and Rural Affairs
EA Environment Agency
EC European Commission
ECoW Ecological Clerks of Works
EIA Environmental Impact Assessment
EQS Environmental Quality Standards
ES Environmental Statement
EU European Union
EUS Extensive Urban Survey
GQA General Quality Assessment
ha hectare
HGV Heavy Goods Vehicle
IEA Institute of Environmental Assessment
IEEM Institute of Ecology and Environmental Management
IEMA Institute for Environmental Management and Assessment
km kilometre
LAeq A-weighted equivalent noise level parameter
LAmax A-weighted maximum sound pressure level
LNR Local Nature Reserve
m metre
m2 square metre
MAGIC Multi-Agency Geographical Information for the Countryside
mm millimetre
N/A Not Applicable
NJUG National Joint Utilities Group Guidelines
NNR National Nature Reserve
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Littlehampton Arun East Bank Tidal Walls, Environmental Statement
No. number
NPPF National Planning Policy Framework
PPG Planning Policy Guidance (Planning)
PPG Pollution Prevention Guidelines (Water quality)
PPS Planning Policy Statement
RSS Regional Spatial Strategy
SAC Special Area of Conservation
SM Scheduled Monument
SMP Shoreline Management Plan
SNCI Site of Nature Conservation Importance
SPA Special Protection Area
SSSI Site of Special Scientific Interest
UKBAP United Kingdom Biodiversity Action Plan
WFD Water Framework Directive
WCA Wildlife and Countryside Act
WSCC West Sussex County Council

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Littlehampton Arun East Bank Tidal Walls, Environmental Statement