Who We Are and Key Partners Project Team
We are a team of specialist coastal officers and engineers who deliver a comprehensive coastal management service across 246km of coastline. As part of Havant Borough Council, we are managing the delivery of this project.
AECOM is a multinational engineering consultancy, helping us deliver the more technical elements of the Strategy. AECOM are experts in this field, having delivered several coastal management strategies around the country.
Key Partners
Havant Borough Council (HBC) is responsible for delivering local projects and essential services throughout the Borough.
HBC Community Infrastructure Levy is also partially funding the Strategy. HBC are a key landowner on Hayling Island and have permissive powers for sea defence and coast protection.
Project Steering Group
The Hayling Island Coastal Management Strategy Project Steering Group consists of representatives from organisations with a significant interest in the Study as it progresses.
The role of the Steering Group is to guide the delivery of the project; share knowledge, particularly regarding local issues, opportunities and constraints, best practice and provide feedback and input to decision making at key milestones throughout the Strategy.
The Strategy is partially funded through Flood Defence Grant in Aid (FDGiA), managed by the Environment Agency. The Environment Agency also own and maintain some sections of coastal defence on Hayling Island.
Key Stakeholder Working Group
The project team have engaged with a Key Stakeholder Working Group for the project, comprising representatives from local organisations, community associations and businesses, to help shape the Draft Strategy.
The Working Group have met several times through the development of the Strategy providing feedback which has been fed into the appraisal process.
Engagement with the local community is crucial to development of the Strategy and ensuring all those who live, work and visit Hayling Island are able to put forward their thoughts and aspirations for the coast. A community wide survey was undertaken at the start of the project to help set the direction for the Strategy.
The project team have also met with various individuals and landowners as part of the options appraisal process.
Community havant.gov.uk coastalpartners.org.uk
A Coastal Management Strategy for Hayling Island
START OF THE JOURNEY
will the Strategy
Strategy
COASTAL MANAGEMENT STRATEGY
is the Strategy Funded?
Strategy is funded by Flood Defence Grant in Aid, managed by the Environment Agency, in conjunction
Havant Borough Council Community Infrastructure Levy.
2010 2020 2023 HAYLING ISLAND
What
deliver? The
will: • Guide how Hayling Island’s coastal frontages may be sustainably managed for the next 100 years. • Consider the effects of predicted climate change, including sea level rise. • Identify where, when and broadly what type of works are needed in the short term to manage the risks of coastal flooding and erosion and what they may cost. • Consider where we can make space for nature. • Incorporate adaptation strategies.
APPROVAL & ADOPTION OF THE STRATEGY A Timeline of Events: Identified the need for a coastal management strategy for Hayling Island Hayling Island Funding & Implementation Strategy 2019 North Solent Shoreline Management Plan 2010 2023+ SUBJECT TO FUNDING, IMPLEMENT STRATEGY RECOMMENDATIONS Defence Schemes/ Beach Management Landowner Maintenance/ Improvements Adaptation How
The
with
havant.gov.uk coastalpartners.org.uk
Hayling Island
COMMUNITY & ACCESS
Today • Hayling Island has a population of over 17,000. • The largest residential areas are focussed along on the south coast and on the Eastoke peninsula. • Langstone Bridge is the sole road crossing to the island. • The Hayling Billy trail which runs along the old railway line from the north to the south is well used by walkers, cyclists and horse riders. • Hayling Island’s coast features a network of habitats protected by national and international environmental designations as a Ramsar wetland site, Special Protection Area (SPA), Special Area of Conservation (SAC) and Site of Special Scientific Interest (SSSI). • Harbour habitats include mudflats, sandbars, saltmarsh, coastal lagoons, coastal grazing marsh, eelgrass, shingle ridges and islands. • These habitats support a diverse range of wildlife and over 93,000 species of wetland birds. • Hayling has five Local Nature Reserves. ENVIRONMENT & NATURE HERITAGE RECREATION AND LEISURE • The island offers miles of unspoilt coastline and countryside, where visitors can walk, cycle or relax. • The five-mile-long seashore offers safe places for enjoying swimming, sport activities, picnicking and barbeques. • The Island offers the perfect conditions for sailing, windsurfing, power boating, jet skiing, kitesurfing, surfing, paddle boarding and kayaking. • Hayling Island has a number of sailing clubs as well as three major marine facilities, offering berthing and support services for leisure boat owners. • The Island has two golf courses. • Two Scheduled Monuments (SM) are found on Hayling, which include Tourner Bury SM in the east and Sinah Farm SM in the south west. • The Coastguards Conservation Area is located in the south of the Island. • Other heritage features include 22 pillboxes, gun sites and memorials. EASTOKESELSMORE MENGHAM WEST TOWN STOKE NORTHNEY SINAH HAYLING BILLY TRAIL MILL RYTHE COASTAL VILLAGE FLEET TYE RECREATION AND LEISURE • Hayling Island played a vital role in WWII, as a Military base defending Portsmouth and in execution of the D-Day landings, evidenced by the Pillboxes, gun sites and memorials on the coastal landscape. • The Island is considered one of the UK’s last traditional seaside resorts, dating back to its pre-Victorian origins as an exclusive health resort. • The Hayling Island coast covers a total of 38km. • Hayling Island is often dubbed the worldwide home of windsurfing, following resident Peter Chilvers’ invention of the first windsurf board in 1958. • There are approximately 1.9 million recreational visits to Hayling Island per year, generating £9.5 million annually. Did you know? havant.gov.uk coastalpartners.org.uk EASTOKESELSMORE MENGHAM WEST TOWN The Kench LNR MILL RYTHE STOKE Sinah Common SSSI Hayling Billy LNR Oyster Beds West Hayling LNR Gutner Point LNR Sandy Point LNR Chichester Harbour SSSI Chichester Harbour SSSI WWII Heavy AntiAircraft Gunsite SM NORTHNEY ENVIRONMENT AND HERITAGE Tourner Bury SM EASTOKESELSMORE MENGHAM WEST TOWN SINAH LANE THE KENCH HAYLING FERRY STOKE NORTHNEY LANGSTONE BRIDGE COMMUNITY AND ACCESS SOUTH HAYLING MILL RYTHE HAYLING BILLY TRAIL
Our
CLIMATE AND COASTAL CHANGE
The low-lying Hayling Island coastline is facing growing challenges from climate change, where sea levels are predicted to rise by over a metre by the end of the century, storms are becoming more frequent and extreme, and coastal flood and erosion risk is increasing. If not planned for or managed correctly, this could have significant impacts on the economy, the environment, public health and the existing way of life on Hayling.
COASTAL FLOOD AND EROSION RISK
At present, if there were no coastal defences in place, a total of 335 residential & commercial properties would be at risk on the Island from an extreme tidal flood event. With sea level rise, in 100 years, these figures rise to 3,158 properties at tidal flood risk, with an additional 795 properties at risk from coastal erosion by 2121 if no defences were in place.
Large residential areas, key infrastructure including the A3023, Langstone Bridge, environmentally important areas (including the oyster beds) and significant recreation and leisure assets would be affected under an extreme tidal flood event in 100 years’ time (blue areas), assuming no defences in place.
Erosion of the west coast would also occur (purple areas), with potential impacts on the integrity of the Hayling Billy Trail.
Challenges
WHAT’S AT RISK NOW AND INTO THE FUTURE? EASTOKE MENGHAM WEST TOWN Chichester Harbour SSSI, Ramsar and SPA Langstone Harbour Ramsar and SPA Oyster Beds STOKE FLEET NORTHNEY TYE SINAH Hayling Golf Club Ferry Road Along the open coast, large residential areas, environmentally important areas and significant recreation and leisure assets would be affected under this scenario, where the coastline is most exposed to the impacts of the open sea and bi-modal wave conditions. Beaches would roll back to the west, but would disappear over time in the east where constrained. Indicative flood and erosion extents 2120 no defences in place (not to scale) EASTOKE MENGHAM WEST TOWN SINAH Chichester Harbour SSSI, Ramsar and SPA Langstone Harbour Ramsar and SPA Hayling Golf Club Beachlands Golf Course Oyster Beds STOKE FLEET NORTHNEY TYE Indicative flood extents 2120 no defences in place (not to scale) The existing coastal defences around the Hayling Island coastline are in varying condition, with many of these reaching the end of their serviceable lives. These are becoming increasingly difficult and costly to maintain into the future. Therefore, better, longer-term, sustainable solutions are required for future management. AGEING COASTAL DEFENCES havant.gov.uk coastalpartners.org.uk Harbour Coastline Open Coastline
How have we Developed the Strategy?
We began by looking at the baseline situation today, and used modelling to understand the coastal flood and erosion risks now and in the future with climate change. During Strategy development we have explored different ways to manage Hayling Island’s coast, engaged with stakeholders, landowners and the public, and using economic, technical, social and environmental criteria, have selected a suite of leading coastal management options for the island to form the draft Strategy.
Modelling
Engagement
Divide the Coast
Identify Options
Economics
costs of options and benefits
Appraise Options
Score against technical, environmental and social objectives
Leading Options
Identify leading options, where leading option = highest score
Calculate
havant.gov.uk coastalpartners.org.uk
IMPORTANT POINTS TO NOTE... • Without funding, options cannot be progressed • With funding, the Strategy options could change onto an alternative pathway • Landowners are ultimately responsible for maintaining or improving their own defences
Split the coastline into manageable sections
Understand coastal flood and erosion risk
Stakeholder workshops and public engagement to shape the strategy
Shorten a long list of options for appraisal
Beaches move landward Accept more frequent flooding Saltmarsh habitats move landward Erosion events more frequent Revetments Seawalls Embankments Rock Beach management Groynes Saltmarsh restoration Offshore breakwaters Beaches move landward Flood warning, adapting property Relocating property Move defences landward COASTAL MANAGEMENT APPROACHES OPTIONS Accepting the tide… our baseline, involves no intervention or management, where the coast evolves naturally Reducing the impacts of the tide… building artificial structures which try to control natural processes. These often ‘hard’ defences are designed to reduce erosion or tidal flooding Working with the tide… By working with natural processes rather than against them, a more sustainable and natural approach to managing the coast. Adapting to the tide… focuses on managing change, to minimise the negative consequences of flooding and erosion, where we are adapting to a changing environment by making communities more resilient to climate change. TECHNICAL ECONOMIC ENVIRONMENTAL SOCIAL Cost Effective Option Best value for money in line with Government guidance Wider Objectives Option Considers wider environmental, social and technical benefits and landowner aspirations Wider Objectives Option Cost Effective Option
Draft Strategy for North East Hayling
ODU 1a: Langstone Bridge to Northney Marina Short Term Medium Term
Intent: Maintain viability of Northney Rd and the A3023 into the future as sea levels rise.
Leading Option: Reduce the impacts of the tide.
How: Construction of new defences along the road and raise over time to keep pace with sea level rise.
ODU 1b: Northney Marina to Spinnaker Grange (east)
Intent: Maintain flood protection to properties while making space for nature by creating a more sustainable defence alignment into the future.
Leading Option: Adapting to the tide.
How: Construct new set-back defences where appropriate, maintain and raise over time to keep pace with sea level rise.
Long Term
Short Term Medium Term Long Term
ODU 1c: Spinnaker Grange (east) to Northney Farm
Intent: Stop landfill eroding into the harbour into the future as sea levels rise.
Leading Option: Reducing the impacts of the tide.
How: Construction of new defences along existing alignment, maintain and raise over time to keep pace with sea level rise.
ODU 2: Northney Marina
Intent: Landowners to maintain their own flood and erosion protection to assets and businesses or adapt to become more resilient to flooding in the future.
Leading Option: Adapting to the tide. How: Private maintenance or replacement of defences by landowner or adaptation.
Medium Term
Short Term
ODU 3: Northney Farm to Chichester Road
Long Term
Intent: Maximise agricultural opportunities while making space for nature to maintain the viability of agricultural land while exploring a more sustainable defence alignment into the future.
Leading Option: Adapting to the tide.
How: Construct new defences over time, and set back where appropriate, maintain and raise to keep pace with sea level rise.
Short Term
Medium Term
Term
Intent: Landowners to maintain their flood and erosion protection to assets and businesses or adapt to become more resilient to flooding in the future.
Leading Option: Adapting to the tide.
How: Private maintenance or replacement of defences by landowners or adaptation.
details
Short Term Medium Term Long Term
Long
ODU 4: Chichester Road to Mill Rythe Junior School Short Term Medium Term Long Term ST E CopseLn W e s t L n A3023 A3023 OK ODU 1a ODU 2 ODU 1b ODU 1c ODU 3 ODU 4 NORTHNEY havant.gov.uk coastalpartners.org.uk For full
on the draft strategy, scan here:
Intent: Maintain and improve flood protection to properties and businesses.
Leading Option: Reduce the impacts of the tide.
ODU 5a: Mill Rythe Junior School to Tournerbury Farm Short Term Medium Term Long Term
How: Construct new defences, maintain and raise over time to keep pace with sea level rise.
ODU 5b: Tournerbury Farm to Tournerbury Woods Estate
Intent: Make space for nature by creating a more sustainable defence alignment into the future.
Leading Option: Adapting to the tide.
How: Construct new set-back defences, maintain and raise over time to keep pace with sea level rise.
Short Term Medium Term Long Term
ODU 5c: Tournerbury Woods Estate to Salterns Lane
Intent: Landowners to maintain their own flood and erosion protection to assets and businesses or adapt to become more resilient to flooding in the future.
Leading Option: Reducing the impacts of the tide.
How: Private maintenance or replacement of defences by landowner or adaptation.
ODU 6: Salterns Lane to Wilsons Boat Yard
Intent: Maintain flood protection to the residents, community and businesses at Selsmore.
Leading Option: Reducing the impacts of the tide.
How: Private maintenance of defences in the short and medium term, then construct and maintain new defences in the longer term.
For full details on the draft strategy, scan here:
Short Term Medium Term Long Term
Short Term Medium Term Long Term
Intent: Maintain flood protection to the residents, community and businesses at Selsmore.
Leading Option: Reducing the impacts of the tide.
ODU 7: Wilsons Boat yard to Fishery Creek Short Term Medium Term Long Term
How: Construct new defences, maintain and raise over time to keep pace with sea level rise.
havant.gov.uk coastalpartners.org.uk
Draft Strategy for South East Hayling SouthwoodRd C h u r c h R d Elm Grove A 3 0 2 3 ODU 6 ODU 5a ODU 5b ODU 5c ODU 7 SELSMORE MENGHAM
Draft Strategy for South Hayling
ODU 8 North: Fishery Creek to Sandy Point Nature Reserve
Intent: Maintain a healthy beach alongside flood and erosion protection to residents, community and businesses at Eastoke.
Leading Option: Reduce the impacts of the tide.
How: Construct new defences (flood walls, crest raising and set back floodwalls), maintain and raise over time to keep pace with sea level rise.
ODU 9: Eastoke Corner to Inn on the Beach
Intent: Maintain a healthy beach alongside flood and erosion protection to residents, community and businesses along the seafront.
Leading Option: Working with the tide. How: Continue beach management, new rock groynes and new defences to maintain the Inn on the Beach as a control structure, maintain and raise over time to keep pace with sea level rise.
Short Term Medium Term Long Term
Short Term Medium Term
Long Term
ODU 10 South: Inn on the Beach to the Ferry Boat Inn
Intent: Make space for nature while landowners maintain their flood and erosion protection to assets and businesses or adapt to become more resilient to flooding in the future.
Leading Option: Adapting to the tide. How: Allow the coast to evolve as naturally as possible alongside private maintenance or replacement of defences or adaptation by landowners.
Short Term Medium Term
Long Term
ODU 8 South: Sandy Point Nature Reserve to Eastoke Corner Short Term Medium Term Long Term
Intent: Maintain a healthy beach alongside flood and erosion protection to residents, community and businesses at Eastoke.
Leading Option: Reduce the impacts of the tide.
How: Beach management alongside new rock groynes
construct new
maintain and raise over time
keep pace with sea level rise.
ODU 10 North: The Ferry Boat Inn to North Shore Road
Intent: Landowners to maintain their flood and erosion protection to assets and businesses or adapt to become more resilient to flooding in the future.
Leading Option: Adapting to the tide.
How: Private maintenance or replacement of defences by landowners or adaptation.
Short Term Medium Term Long Term
havant.gov.uk coastalpartners.org.uk For full details on the draft strategy, scan here: SeaFront Sea Front SouthwoodRd Elm Grove EASTOKE A 3 0 2 3 ODU 10s ODU 10n ODU 9 ODU 8s ODU 8n
and
defences,
to
Draft Strategy for West Hayling
ODU 11: North Shore Road Short Term
Intent: Maintain flood and erosion protection to residents.
Leading Option: Reducing the impacts of the tide.
How: Construct new defences in stages, maintain and raise to keep pace with sea level rise.
ODU 12: North Shore Road to Newtown
Intent: Make space for nature.
Leading Option: Accepting the tide.
How: Allowing the coast to evolve naturally, no active management.
Medium Term Long Term
Short Term
Medium Term Long Term
ODU 13: Newtown
Intent: Maintain flood and erosion protection to residents, community and businesses at Newtown.
Leading Option: Reducing the impacts of the tide.
How: Maintain in the short term, construct new defences in the medium term, maintain and raise to keep pace with sea level rise.
Short Term
Medium Term Long Term
ODU 14: Newtown to Stoke
Intent: Make space for nature.
Leading Option: Accepting the tide. How: Do nothing, but consider realigning sections of the Hayling Billy Trail to maintain access.
Medium Term
Short Term
For full details on the draft strategy, scan here:
Long Term
ODU 15: Stoke to Langstone Bridge Car Park Short Term Medium Term Long Term
Intent: Maintain the viability of the Hayling Billy Trail and the community at Stoke while making space for nature by creating a more sustainable defence alignment into the future.
Leading Option: Adapting to the tide
How: Construct new defences, maintain and raise over time to keep pace with sea level rise.
ODU 16: Langstone Bridge Car Park to Langstone Bridge Short Term
Intent: Maintain the viability of the A3023 into the future as sea levels rise.
Leading Option: Reducing the impacts of the tide.
How: Construct new defences, maintain and raise over time to keep pace with sea level rise.
Medium Term Long Term
havant.gov.uk coastalpartners.org.uk
C h W e s t L n u r c h R d A3023 STOKE CopseLn A 3 0 2 3 ODU 11 ODU 12 ODU 14 ODU 15 ODU 13 ODU 16
Short
Action Plan
A short term action plan is shown below, which sets out a 10 year programme of priority studies and works required to facilitate the delivery of the Strategy.
How will this be funded?
• There is no guarantee that any of these options will be progressed, its all down to funding.
• Significant funding from a variety of sources will be needed to progress any options.
• Public funds for coastal management are not widely available and key criteria have to be met in order to apply for funds, but it may be possible to secure some funds for key areas such as Eastoke, Selsmore and Mengham.
We will work to develop business cases to progress schemes if there is funding and if it’s in the public interest (where there is a technical, environmental, social and economic solution)
the end of the day, landowners are ultimately responsible for maintaining or
their own
reality is that we will need to look to adaptation
a realistic response to coastal risks on the Island
in the future.
Coastal
2023 202820272024 2025 2026 203120302029 2032 Detailed Design & consenting Detailed Design & consenting 5 4 1 2 3 10 9 12 6 Beach management activities 7 Secure funding to progress study Secure funding to progress study Bi modal wave study Secure funding to progress Develop Adaptation Plan Develop new BMP & business case Feasibility study & Business case Detailed Design & consenting Construction Secure funding to progress study Feasibility study & Business case ConstructionDetailed Design & consenting Secure funding to progress study Feasibility study & Business case Detailed Design & consenting Construction Secure funding to progress study Feasibility study & Business case Detailed Design & consenting Construction Secure funding to progress study Feasibility study & Business case Detailed Design & consenting Construction Feasibility study & Business case Secure funding to progress study Feasibility study & Business case ConstructionDetailed Design & consenting Feasibility study & Business case Secure funding to progress study 11 Beach management activitiesDevelop new BMP & business case havant.gov.uk coastalpartners.org.uk
Term
•
• At
improving
defences. • The
as
now and
• Identify future ‘no-build areas.’ • Use risk informed land-use planning to prevent new development in areas at risk now or in the future. • Change land use. • Make property resilient to flooding. • Raise community awareness. • Community support groups. • Flood warning • Withdraw, relocate or abandon assets that are at risk. • Habitats are able to move landward as sea levels rise. Coastal adaptation should be considered in all locations alongside the leading strategic options presented. We need to explore methods to adjust to the reality of present and future coastal flooding and erosion risk.
Adaptation ACCOMODATEAVOID RETREAT Source: Google Earth TerraMetrics Data SIO, NOAA, U.S. Navy, NGA, GEBCO 2028 Island wide Adaptation Plan 2024 Beach Management Plan 2026 Northney Habitat Restoration 2032 Tournerbury Habitat Restoration 2027 Selsmore & Mengham Flood Risk management 2026 North Eastoke Flood and Erosion Risk Management 2024 Eastoke Drainage 2027 Northney Road Flood Risk management 2027 Northney Landfill Erosion Management 2029 Replacement Groynes 1 2 3 4 5 6 78 9 10 11 12 2024 Bi modal wave study 2029 Beach Management Plan
We
Your Help...
havant.gov.uk coastalpartners.org.uk
Need
We’d like to hear from you about the draft Hayling Island Coastal Management Strategy. We are looking for feedback from the Island’s community and visitors on the draft coastal management strategy options presented. The information provided by you is very important to help shape the final Coastal Management Strategy for Hayling Island. You will also have the opportunity to leave us feedback and questions, if you wish. Share Your Thoughts Use this QR code to get a link directly to the Survey to share your thoughts on the proposals shown at this exhibition. We would really appreciate your help by completing this questionnaire. Tell us... If you have any additional questions after the events, please email the Coastal Team at: coastal.team @havant.gov.uk Project Webpage Hayling Island Coastal Management Strategy Story Maps Subscribe to the project E-newsletter What happens next? 2022 - 2023 Approval and Adoption of the Strategy Public Consultation October to December 2022 Review comments & finalise Strategy Winter 2023 Submit to Havant Borough Council for approval & adoption Spring 2023 Submit to Environment Agency for approval Summer 2023 Strategy completion Summer 2023
