Porth Minnick (Treasure Beach) 42.12
Summary management approach
In the medium term, move from maintaining existing shoreline position to setting back the defence to prevent coastal squeeze and maintain the natural defence function of the beach. This will provide protection from wave overtopping, which is the major issue here rather than still water levels. Establish trigger values for intervention to realign, and monitor.
Generic approach assigned to this unit
Management approaches depend on funding and relevant approvals and permissions. Adaptation to coastal change may be needed. If defences are present, some risk from flooding, erosion or ground instability may remain.
Time periods (short (0 to 20 years), medium (20 to 50 years) and long (50 to 100)) are approximate and do not signify precise dates of management transitions.
0 to 20 years (2005 to 2025)
HL1Hold the lineMaintain/replace
Where protection is currently provided by coastal defence structures or managed beaches, and the intention is to retain a defence along approximately the current alignment. This will involve replacing defences when needed. Defence type, method and standard of protection may be modified over time.
20 to 50 years (2025 to 2055)
MR1Managed realignmentSet back defence
Where the intention is to defend elsewhere in flood plain inland from present shoreline or allow erosion/recession to a defined alignment. New defences might be constructed at that new location if needed. This may involve the creation of inter-tidal habitat.
50 to 100 years (2055 to 2105)
MR1Managed realignmentSet back defence
Where the intention is to defend elsewhere in flood plain inland from present shoreline or allow erosion/recession to a defined alignment. New defences might be constructed at that new location if needed. This may involve the creation of inter-tidal habitat.
Neighbouring units
The following units are within 1km of this one:
- Porth Hellick 42.10
- Salakee Down 42.11
- Tolman Point 42.13
- Tolman Point to Old Town Slip 42.14
- Old Town Slip to Old Church 42.15
- Old Church to Carn Leh 42.16
- Carn Leh to Playground 42.17
- Innisdgen to Porth Hellick 42.9
Protected sites
This area of coastline is in or near a special protection area.
Data last updated: 2024-04-17
View Special Protection Area on the Data Services PlatformThis area of coastline is in or near an area of outstanding natural beauty.
Data last updated: 2024-06-29
View Area of Outstanding Natural Beauty on the Data Services PlatformThis area of coastline is in or near a special conservation area.
Data last updated: 2024-04-17
View Special Area of Conservation on the Data Services PlatformThis area of coastline is not in or near a ramsar wetland area.
Data last updated: 2024-04-03
View Ramsar Site on the Data Services PlatformThere are 2 scheduled monuments near this area of coastline.
Data last updated: 2024-04-03
View Scheduled Monument on the Data Services PlatformThis area of coastline is not in or near a local nature reserve.
Data last updated: 2024-06-29
View Local Nature Reserve on the Data Services PlatformThere are no sites of special scientific interest near this area of coastline.
Data last updated: 2024-07-26
View Site of Special Scientific Interest on the Data Services PlatformThis area of coastline is not in or near a national nature reserve.
Data last updated: 2024-06-29
View National Nature Reserve on the Data Services PlatformThere is a marine conservation zone near this area of coastline.
Data last updated: 2024-04-03
View Marine Conservation Zone on the Data Services PlatformActions for this unit
All actions are subject to funding and approval, often by other parties than the Lead Organisation shown.
Reference Number | Action Description | Action Lead Organisation | Action Progress Status | Priority |
---|---|---|---|---|
17.173 | Undertake an initial high level assessment of future coastal risk and associated adaptation and resilience requirements, evidence needs to inform management (such as wave/sediment transport modelling) and priorities for action. Use this to define the scope of a comprehensive, long-term (100+ year) Isles of Scilly Coastal Resilience & Adaptation Strategy. | Council for Isles of Scilly | Progressing | High |
17.174 | Develop a comprehensive long-term (100 years+) strategy for how the Isles of Scilly will adapt and be resilient to the challenges posed by climate change, sea level rise and other coastal related hazards. This is to be set within the context of the wider Isles of Scilly Climate Adaptation Strategy. Development of this strategy is to include:1. A new Wave Study utilising recent modelling, updated to account for the latest guidance, boundary data, sea level rise projections and other information to inform present and future risk assessment for the Isles.2. A new assessment of climate change-dirven coastal risks to the Isles based on latest evidence.3. A new assessment of tsunami-related coastal risks.4. Assessment and action to address all recommendations contained in the 2020 SMP17 SMP-Refresh for SMP units covering the Isles, including any changes to currently agreed SMP management approaches.5. A review and update of the SMP17 action plan for the Isles of Scilly.6. A quantification of the magnitude of required managed realignments and an appraisal of the options and requirements for works to manage key risks to people, property and infrastructure, including where there is a particular need to inform spatial planning and future investment programmes.7. Development of new environmental assessments to consider all current environmental designations and potenital implications of coastal squeeze.This strategy will consider risk reduction, readiness, response and recovery to address pre-event, during-event and post-event planning and operations. | Council for Isles of Scilly | Not yet started | High |
17.175 | Engage with land use planners and discuss approach to development of Coastal Change Management Areas (CCMAs) around the Isles, including adaptation planning for existing development , consideration of the natural environment and inclusion of risk zones. Specific flood risk management policies should be included in the updated Local Plan for 2015-30. CCMA to be identified in Core Strategy Policy for community adaptation. | Council for Isles of Scilly | Not yet started | High |
17.214.01 | Improve the quality of community awareness and warning by publishing Flood Maps and extending the Environment Agency Flood Warning Service to the Isles of Scilly. | Environment Agency | Not yet started | High |
17.215 | Undertake a Capital Maintenance project to sustain the functionality and life of existing coastal defences in the short term (25 years), whilst the long-term coastal resilience and adaptation strategy is being developed, and medium to long term responses are considered and then delivered | TBC | Not yet started | Medium-high |
17.214 | Undertake Environment Agency Isles of Scilly Coastal Flood Risk Modelling | Environment Agency | Complete |
Download SMP documents
The information on this website represents the current SMP management approaches adopted by the local authorities within its area, and current actions needed to deliver them. These management approaches have been approved by the Environment Agency under its Strategic Overview for coastal flood and erosion risk management and are considered to be local policy.
The documents below provide the full SMP adopted locally and approved by the Environment Agency at the time of publication. Some of the information has changed in response to new government policy, new evidence or new work identified.
Data on this page
Main report
- Chapter 1 - Introduction
- Chapter 2 - Environmental Assessment
- Chapter 3 - Basis for the Plan
Chapter 4 - Management Units:
- Introduction to the management units
- PDZ1 - Pencarrow Head to Gribbin Head - Introduction
- MA1 - Rame Head to Downderry
- MA2 - Downderry and Seaton
- MA3 - Seaton to Pencarrow Head
- PDZ2 - Pencarrow Head to Gribbin Head - Introduction
- MA4 - Pencarrow Head to Gribbin Head
- MA5 - Fowey Estuary (above Mixtow) inc tributaries
- PDZ3 - Gribbin Head to Black Head - Introduction
- MA6 - Gribbin Head to Par Docks
- MA7 - Par Docks to Black Head
- PDZ4 - Black Head to Zone Point - Introduction
- MA8 - Black Head to Dodman Point
- MA9 - Veryan Bay
- MA10 - Gerrans Bay
- PDZ5 - Zone Point to Nare Point - Introduction
- MA11 - Lower Fal
- MA12 - Upper Fal
- MA13 - Pendennis Point to Rosemullion Head
- MA14 - Helford
- PDZ6 - Lizard (Nare Point to Baulk Head - Gunwalloe) - Introduction
- MA15 - Lizard East (Nare Point to Lizard Point)
- MA16 - Lizard West (Lizard Point to Baulk Head)
- PDZ7 - Mounts Bay East (Baulk Head (Gunwalloe) to Marazion) - Introduction
- MA17 - Baulk Head to Trewavas Head
- MA18 - Trewavas Head to The Greeb
- PDZ8 - Mounts Bay West (The Greeb to Point Spaniard (Inc Marazion and St Michael’s Mount - Introduction
- MA19 - Marazion to Longrock
- MA20 - Longrock to Penzance
- MA21 - Penzance and Newlyn (Albert Pier to Sandy Cove)
- MA22 - Mousehole (Sandy Cove breakwater - Point Spaniard)
- PDZ9 - Penwith Peninsula (Point Spaniard to Clodgy Point) - Introduction
- MA23 - Point Spaniard to Land’s End
- MA24 - Land’s End to Clodgy Point (St Ives)
- PDZ10 - Clodgy Point to Godrevy Point - Introduction
- MA25 - Clodgy Point to Porthminster Point
- MA26 - Porthminster Point to Hayle Estuary
- MA27 - Hayle Estuary
- MA28 - Black Cliff to Godrevy Point
- PDZ11 - North Cliffs (Godrevy Point - Pentire Point West) Introduction
- MA29 - Godrevy Point to St Agnes Head
- MA30 - St Agnes Head to Pentire Point West
- PDZ12 - Newquay (Pentire Point West - Trevelgue Head) Introduction
- MA31 - Fistral Bay and Crantock
- MA32 - Newquay Bay
- PDZ13 - Trevelgue Head to Stepper Point - Introduction
- MA33 - Trevelgue Head to Trevose Head
- MA34 - Trevose Head to Stepper Point
- PDZ14 - Camel Estuary (Stepper Point to Pentire Point) - Introduction
- MA35 - Camel Estuary (Stepper Point to Trebetherick Point)
- MA36 - Trebetherick Point to Pentire Point
- PDZ15 - Pentire Point to Wanson Mouth - Introduction
- MA37 - Pentire Point to Boscastle
- MA38 - Boscastle to Wanson Mouth
- PDZ16 - Widemouth & Bude (Wanson Mouth to Lower Sharpnose Point) - Introduction
- MA39 - Wanson Mouth to Higher Longbeak
- MA40 - Higher Longbeak to Lower Sharpnose Point
- PDZ17 - Lower Sharpnose Point to Hartland Point - Introduction
- MA41 - Lower Sharpnose Point to Hartland Point
- PDZ18 - Isles of Scilly - Introduction
- MA42 - St Mary’s
- MA43 - St Martin’s
- MA44 - Tresco
- MA45 - Bryher
- MA46 - St Agnes and Gugh
Chapter 5 – Summary of Preferred Plan Introduction:
- Chapter 6 - Action plan
- Glossary
- Acknowledgements
Appendices
- Appendix A – SMP Development
- Appendix B – Stakeholder Engagement
- Appendix C - Baseline
- Appendix D – Theme Review Final Report
- Appendix E – Issues and Objectives
Appendix F - SEA:
- Appendix G – Scenario Testing
Appendix H - Economic Appraisal:
Appendix I - HRA:
- Appendix A Cornwall And Ios Smp2 Appropriate Assessment 1
- Appendix B Sssi Condition Tables
- Appendix D Hr01
- Appendix E Hr02
- Hra Appendix C1 Pdz10 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz11 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz12 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz13 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz14 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz16 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz18 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz1 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz2 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz3 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz4 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz5 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz6 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz7 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz8 Assessment Tablesv2 Submitted
- Hra Appendix C1 Pdz9 Assessment Tablesv2 Submitted
- Appendix J - Water framework Assessment
- Appendix K - GIS Data
- Appendix L - Adoption