Saltfleet to Gibraltar Point Strategy Document
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Saltfleet to Gibraltar Point Strategy M ay 2019 Coastal frontage between Trusthorpe and Sutton on Sea i ii Saltfleet to Gibraltar Point Strategy Document history and status Version Status Signed off by: Date signed Date issued 1.0 Issued as the Strategy Jacobs/MC August 2018 23 August 2018 plan 2.0 Change to strategy Jacobs/MC March 2019 14 March 2019 document format 2.1 Draft strategy for Jacobs/MC May 2019 17 May 2019 consultation following client comments 1 Saltfleet to Gibraltar Point Strategy Contents Section Page Introduction ................................................................................................................................... 1 Purpose of this document ................................................................................................... 1 Strategic framework ........................................................................................................... 2 Policy framework ................................................................................................................ 5 Social and political background .......................................................................................... 6 Environmental designations ............................................................................................... 7 Strategy objectives .............................................................................................................. 7 Background to the present situation ........................................................................................ 9 Flood risk ............................................................................................................................. 9 Flood risk management .................................................................................................... 12 Flood response planning as part of managing flood risk .................................................. 15 Going forward ....................................................................................................................... 17 The need to do something ................................................................................................ 17 Strategic option appraisal ................................................................................................. 18 3.2.1 Flood damages ..................................................................................................... 18 3.2.2 Benefits (damages avoided) ................................................................................ 21 3.2.3 Description of approaches ................................................................................... 21 3.2.4 Option costs ......................................................................................................... 24 3.2.5 Benefit-cost assessment ...................................................................................... 25 Strategy approaches and engagement ............................................................................. 26 3.3.1 Stakeholder workshops ....................................................................................... 27 3.3.2 Public consultation .............................................................................................. 29 Environmental assessment ............................................................................................... 29 Carbon considerations ...................................................................................................... 31 Option appraisal summary ................................................................................................ 32 The proposed strategy ........................................................................................................... 33 Preferred strategy ............................................................................................................. 33 Delivery ............................................................................................................................. 35 4.2.1 Stage 1 (years 1 to 5) ........................................................................................... 36 4.2.2 Stage 2 (years 6 to 10) ......................................................................................... 37 4.2.3 Stage 3 (the next 10 to 25 years) ......................................................................... 37 Long-term management ................................................................................................... 38 Implementation plan ............................................................................................................. 40 Overview ........................................................................................................................... 40 Stage 1 activities (2021 to 2026) ....................................................................................... 41 Stage 2 activities (2026 to 2031) ....................................................................................... 42 Stage 3 activities (2031 to 2060) ....................................................................................... 43 2 Long-term activities .......................................................................................................... 43 Next steps ......................................................................................................................... 43 Glossary, acronyms and abbreviations ............................................................................................... 44 3 SALTFLEET TO GIBRALTAR POINT STRATEGY – DRAFT STRATEGY FOR CONSULTATION Introduction Purpose of this document This document presents the proposed strategy for the next 100 years of flood risk management of the coastline from Saltfleet Haven in the north to Gibraltar Point to the south (refer to Figure 11). It has been produced for the benefit of people and the developed environment, taking account of any potential to impact upon the natural environment, historic (built) environment, potential long-term affordability and sustainability. Figure 1: Location plan with strategy area outlined The Lincolnshire coastal flood plain has had a long history of flooding from the sea and many forms of defence are now in place including sand dunes, seawalls, rock/timber structures and beaches. The coastline between Mablethorpe and Skegness has benefited from beach nourishment, the present flood risk management approach, since 1994. Continuing with that approach, or considering alternative ways to manage this shoreline, have now been reviewed to take account of the latest information, knowledge, understanding, and people’s aspirations. Our strategy has been reviewed in line with government requirements and has been developed in part through formal consultation with statutory bodies. We have completed a 1 Map reproduced from Ordnance Survey material, © Crown copyright, Environment Agency license 100024198. 1 SALTFLEET TO GIBRALTAR POINT STRATEGY – DRAFT STRATEGY FOR CONSULTATION series of statutory stakeholder engagement workshops and public consultation events involving business, tourism and community representatives as well as members of the general public. This has provided a wealth of local views and preferences to be collated and considered to help determine the preferred approach to future management. We will continue our conversations with partners, statutory stakeholders and local communities as the works arising from the strategy are developed in detail. Formal consents, including planning permission supported by Environmental Statements, will be required which will provide further opportunities for public comment. This document sets out the future direction for the management of flood risk to the Lincolnshire coastal flood plain between Saltfleet Haven and Gibraltar Point. Any future strategy will require a high level of central government funding or Grant in Aid, and whilst this strategy will manage the risk of flooding from the sea, it is essential that government funding is also available to manage the risk from weather events inland. The consultation process has included a benefit allocation process for all coastal and inland projects by other flood risk management authorities (internal drainage boards and local authorities) which are required to protect the area. This is because there is little value in maintaining coastal defences without inland drainage systems and outfalls, and vice versa. As such any funding is sourced from a risk to inland flooding and separately for coastal flooding. A benefit apportionment process has been prepared by which benefits can be apportioned between the coastal flood risk and the fluvial/surface water flood risks. The following references, principals and guidance, provide a framework for the apportionment of benefits for the Saltfleet to Gibraltar Point Strategy and inland programmes of projects over the period 2021 to 2121. 1. Flood and Coastal Resilience Partnership Funding, Defra policy statement on an outcome-focused, partnership approach to funding 23 May 2011. 2. Principles for implementing flood and coastal resilience funding partnerships – DEFRA / Environment Agency 2012. 3. Calculate Grant in Aid funding for flood and coastal erosion risk management projects, Feb 2014. Guidance for risk management authorities - Environment Agency. Strategic framework Coastal strategies form the second tier in the shoreline management process planning hierarchy, sitting below the high