Hurst Spit to Lymington Strategic Outline Case

Location: Hurst Spit to Lymington

Challenge

The Hurst Spit to Lymington frontage represents a diverse range of coastal structures, land uses and habitats and is loved by communities both locally and nationally. However, the impacts of climate change are causing growing pressures on the coastline including increasing overwashing and breaching of the spit, overtopping of hard defence structures, coastal squeeze of intertidal habitats and saline intrusion to freshwater habitats.

The study area is also recognised as being highly sensitive, with a range of inter-tidal, saline and freshwater habitats designed under National (SSSIs), European (SPAs and SACs) and International (Ramsar) legislation. The impacts of any option to the European designated intertidal habitats in front and saline/freshwater habitats behind the existing defences is a fundamental factor in decision making. This is balanced by a realisation that we cannot continue to maintain defences in perpetuity with the available funding and drive for longer-term sustainability and carbon reduction.

Solution

The Hurst Spit to Lymington Strategic Outline Business Case (SOC) we’re delivering seeks to identify a long term strategic sustainable solution to manage the impacts of climate change and numerous competing interests. By carrying out an ecosystem services assessment alongside the direct flood loss assessment we have been able to consider, quantify and monetise the wider socio-economic, environmental and amenity impacts of the proposals. We’ve also been able to predict the extent of habitat creation within the options.

As part of this ongoing project we’re also exploring more natural ways of managing the coastline in light of the heavily managed existing defences. This is considering both hard engineered structures and more softer measures of management. Given the interest in the area, stakeholder engagement is a key component of the project. A Stakeholder Advisory Group (StAG) has been set up to help shape the direction of the project. This includes local authorities, legislative bodies, representatives of large and small businesses and representatives of the community. The StAG is able to feed into project objectives, vision and optioneering, helping to secure buy-in and ensure community feelings are well represented.

Benefit

Our experience from working on the Hurst Spit to Lymington SOC provides us with an in depth understanding of both technical and local issues. Our technical work in understanding the performance of Hurst Spit and influence on the local hydrodynamic regime provides us with a firm grounding into the dominant processes in the area and the issues associated with this stretch of coastline. The project includes a detailed study of the implications of the proposals on the Habitat Regulations and development of mitigation and/or compensation required to deliver the next stage of the business case successfully.

Want to know more?

For more information about this project email Alec Dane.



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