Factors affecting the Site

Development Pressures
The nominated Site is a living cultural landscape in which we must expect and allow for evolution, growth and decline. There is a determined agenda for social and economic change across Cornwall and West Devon driven by the Objective One Programme, Objective Two, regional and local government strategies. This will bring direct pressures on some areas of the nominated Site, particularly in urban centres such as Hayle and Camborne-Pool-Redruth, which have been identified for major development. World Heritage Site Inscription can be used as a tool to encourage sensitive development and key to this is relating new development to local character. In Cornwall and West Devon it has been identified that sustainable heritage-led regeneration is both an Aim, and an Issue which is explored further in the Management Plan. World Heritage Site Inscription can make a positive contribution to the economic growth and prosperity of Cornwall and West Devon. So while there is without doubt development pressure, much of this will be positive regeneration of former mining land and mining communities.

The major redevelopment of Camborne-Pool-Redruth is a strategic priority and an Urban Regeneration Company has been established to drive this forward guided by an Urban Framework Plan. English Heritage have commissioned an historic urban survey report to inform redevelopment in this area. The URC Business Plan and Urban Framework Plan recognise the importance of the strong heritage, local distinctiveness, and high quality design in shaping a sustainable future for this area, and these aims are consistent with those of the nominated Site.

Housing
There is substantial housing pressure in Cornwall and West Devon as a result of an increasing population, household growth, and surge in second home ownership. New affordable housing is a serious issue for the region and is needed to sustain social and economic regeneration and future prosperity. Most new housing is likely to be on former brownfield sites within the existing urban envelopes and on the periphery of urban and major village settlements.
 
Industrial, commercial and leisure development
To add value to goods in Cornwall and West Devon, to foster start-up companies and expand niche markets, new business parks are required which could include re-use of former mine sites, for example the existing and proposed development at Wheal Kitty, St Agnes. Ports and harbours are subject to pressures for new facilities to improve and extend commercial and leisure use, most typically in the form of marinas to service the leisure and tourism industry.

Conversion and adaptive re-use of historic buildings
The majority of former mining structures within the nominated Site are either by nature or location unsuitable for adaptive re-use and will be conserved as monuments. However some of the housing, business and commercial growth could include conversion of historic buildings, which might vary from increased use of upper storeys over shops in historic towns, conversion of former industrial premises (engineering works and factories) to offices and homes. Inappropriate conversion resulting in loss of character poses a threat which needs to be balanced with the benefits of losing historic buildings altogether through neglect.

Lack of maintenance and neglect of historic fabric
A serious threat across such a large nominated Site arises from simple neglect of historic structures particularly those that have no economic use. Buildings that are unused and do not receive maintenance quickly become susceptible to the elements and decay can be surprisingly rapid.

Greenhill Arsenic Works, Gunnislake. © Barry Gamble.


Incremental alterations to historic built fabric

Nonavailability or the higher costs associated with the use of traditional building materials, combined with locally depressed economies can result in the widespread use of inappropriate materials, finishes and detailing in works undertaken to many private dwellings. In some areas this can lead to a significant loss of urban historic
character. The new Part L of the Building Regulations aims to improve energy efficiency in buildings but in the interpretation one has to recognise and balance the special interest of historic buildings to avoid erosion of
historic character.

Resumption of mining and mineral processing
There is no presumption in principle against mining in the nominated Site provided that the outstanding universal value is conserved or enhanced. A resumption of mining could add to the evolving cultural landscape and authenticity of the nominated Site. There are currently no active mines in Cornwall and West Devon however in the event of a significant upturn in tin prices, there might be an interest in the reopening and the re-prospection of mines. Proposals for resumption of mining in Cornwall and West Devon would need to satisfy the normal environmental and planning requirements. Cornwall and Devon Minerals Plans (Mineral Development Frameworks) safeguard long term access to mineral reserves and balances mineral and commercial interests with environmental and
conservation concerns. There are currently proposals for the resumption of mining activity at South Crofty by Baseresult Holdings who have submitted a Review of Mineral Permission application under the Environment Act 1995 to the Mineral Planning Authority. South Crofty Tin Mine is outside the nominated Site but development on this site could affect the setting.
 

Removal of secondary minerals (mineral working deposits)
Removal of secondary minerals from waste dumps is permitted under the Town and Country Planning (General Permitted Development) Order 1995 (GPDO) unless the mineral planning authority issues an Article 7 Direction to remove these rights and trigger a planning application. If planning permission is refused then the mineral planning authority is liable for compensation. The imposition of the Aggregates Tax has created renewed interest in old mineral dumps because they are exempt from the Tax which is directed at primary aggregates. Removal of mine and quarry waste is actively encouraged by the Aggregates Tax to deter the working of new deposits where there are existing stockpiles of material that could be used. At the same time the historical and continuing mineralogical value of old mineral dumps is being recognised and the nominated Site includes many such sites.
 

East Caradon Mine. © Barry Gamble.

Agriculture and forestry
Outside the towns and villages, the majority of the land in the nominated Site is currently used for agriculture and forestry. Much of
the area where mining remains survive well is now open moorland predominantly used for grazing, while other parts of the nominated Site are enclosed farmland. Some demands of farming can be damaging to the historic remains on the nominated Site. For example in the past some mineshafts have been unsympathetically filled or capped to avoid stock losses.
In addition, recent changes to the farming industry may mean a gradual reduction in stocking rates in areas of grazing, which could lead to scrub growth obscuring and damaging historic features. The introduction of energy crops could pose a threat to the landscape by obscuring
and damaging historic mine sites and changing its historic character. Woodland Grant Schemes which promote planting of new woodland can potentially change the character of the landscape. This would be particularly damaging in areas of miners’ smallholdings which have historically been cleared for agriculture.
 

Tregurtha Downs Mine, Goldsithney. © Barry Gamble.

Environmental Pressures

Biodiversity
The disturbance and metalliferous contamination of former mined land has resulted in environmental conditions that favour restricted and specialised habitats and species, in particular heathland and bare ground suitable for colonization by specialist lower plants. Many of these habitats contain species of international conservation value, for example petalwort. Many habitats have been given protection, for example, national Sites of Special Scientific Interest notified by English Nature under the Wildlife and Countryside Acts of 1981 (as amended) or local Wildlife Sites designated through Structure and Local plans. The biological composition and character of the majority of these habitats is in transition, very slowly succeeding through a vegetational succession (towards scrub and woodland). The primary aim of all management for biodiversity is to retain a representative mosaic of characteristic habitats and, at a minimum, sustain existing populations of rare and scarce species. In some cases, existing environmental factors, for example substrate chemistry and exposure, maintain these habitats and species, but the majority require active management, usually grazing, to maintain their character and quality.
It is important that biodiversity conservation values and management regimes do not conflict with the overall conservation of the nominated Site. The cultural integrity and value of the area is now dependent upon the development of an integrated policy and management framework, based upon management at the landscape scale. Within this, if it is done well, there are significant opportunities to provide real and sustainable gains for agriculture, archaeology and biodiversity, which will ensure the continuing quality of the nominated Site.

Phoenix Mine. Former mining land presents a great variety of habitats for flora and fauna. © Barry Gamble.

Contamination
The nominated Site contains some of the most polluted land in the United Kingdom. The responsibilities of the Environment Agency together with European Union legislation controlling acceptable levels of heavy metals within watercourses or groundwater may result in pressure to tackle contamination pathways between mine waste disposal areas, mine drainage systems and hydrological systems which provide sources of drinking water for humans or animals, or which discharge into the marine environment. Such methods of de-contamination could cause disturbance to mine sites within the nominated Site.
 

Risk Preparedness and Natural Disasters

Fire
The majority of surviving mine structures are constructed of stone, but a small number of particularly important sites incorporate timber buildings (e.g. Geevor, King Edward Mine, Robinson’s Shaft), retain important floor, roof and other detailing or machinery (Levant whim, Mitchell’s, Taylor’s and Robinson’s engine houses) or incorporate historically important original timber roof elements (e.g. Perran Foundry, Wheal Busy Smithy). All are vulnerable to fire, as has been demonstrated by the destruction by arson of the early 20th century steam winder house at Robinson’s Shaft.
 

The building at Harvey's Foundry, hayle is an example of the damage which can be caused by fire. © HES.

Theft, disposal or damage to artefacts and archives

A number of important artefacts and collections of archive material which document and illustrate the nominated Site are held in private collections. There is a thriving market for such items, which may be vulnerable to sale, disposal into collections without public access or theft. Private archives and collections are also inherently far more vulnerable to accidental damage than those in appropriately housed, conserved and protected public collections.

Mineral collection
With the cessation of active mining, the supply of minerals for research has been significantly curtailed. The stock of existing mine dumps and accessible underground sites are, by definition, a finite and non-replaceable resource. Minerals from such sites are also gathered for private collections or for sale, which can cause depletion and disturbance. In extreme cases mechanical excavators and power tools have been used, in part to supply an international trade, now dominated by internet sites. However the conservation and study of mineral sites by organisations with an interest in responsible recreational and scientific collecting (for example Russell Society) helps promote good practice and self-policing of sites.

Natural disaster
Cornwall and West Devon are not prone to major earthquakes or volcanic activity, devastating forest fires, massive flooding or tidal waves, although extreme weather conditions, e.g. localised flooding, and related events are increasing as a result of global warming. Sea level rise resulting from global warming is unlikely to directly impact the nominated Site in the short term, although increased coastal erosion and the environmental effects of changing weather patterns may need to be taken into account in management plans for a number of coastal sites. Equally the United Kingdom Shoreline Management Plans may need to make better provision for heritage issues particularly in the nominated Site.

Incidences of mining subsidence within hard rock mining areas are rare, and are generally confined to poorly-secured mine shafts or ground instability resulting from near-surface mine workings. Although there are recorded instances of such events damaging or destroying historical mine structures, such events are exceptionally rare and not considered likely to pose a significant risk to components of the nominated Site. The majority of the sites for which public access is proposed have been subjected to geotechnical survey to determine the public risk from mine subsidence and remediation measures undertaken to the small number of features considered likely to pose such dangers.


Risk assessment

Risk is the threat that an event or action will adversely affect the ability to achieve objectives. In the case of the nominated Site, risks are present in the physical Site itself and in the implementation of the Management Plan. The World Heritage Site Office needs to undertake a risk assessment of its own strategic and operational functions relating to the Management Plan. The World Heritage Site Office will use the Cornwall County Council risk management cycle contained in its Risk Management Strategy and will be guided by the Cornwall County Council Emergency Planning Officer on the carrying out of this assessment and the implementation of its recommendations. Action Plans for those risks identified which will be passed to the Cornwall County Council Strategic Risk Management Group for inclusion in the corporate risk framework.

In order to assess the significance of all risks and to mitigate them it is necessary for a risk assessment to be carried out using adopted procedures. Responsibility for risk assessment lies with individual owners and managers. The World Heritage Site Office will need to be proactive in encouraging owners and managers to undertake risk assessment and relate these to its own strategic and operational risk assessment.

East Holmbush Mine (Tamar Valley). Interior of engine house. © Barry Gamble.


Risk management begins with identifying risks, evaluating their potential consequences and determining the most effective methods of managing or responding to them. This might include producing Fire Action Plans for significant historic buildings, particularly those containing machinery or timber roofs, and providing data on the nominated Site to the fire service to inform their response to incidents. It may also involve checking Disaster Plans for archive and museum collections are in place (e.g. Cornwall Record Office, The Cornwall Centre, Courtney Library). Cornwall County Council’s Emergency Planning Officer coordinates emergency planning across the six districts in Cornwall and similarly the Devon Emergency

Planning Officer in West Devon. The World Heritage Site Office will liaise with the Emergency Planning Officers on integrating the nominated Site into the existing Crisis Management Teams and reporting mechanisms at the appropriate level, so that in the event of an incident the World Heritage Site Office is involved in decisions which may affect the outstanding universal value. (A similar process will be applied in West Devon).
 

Visitor/tourism pressures

With appropriate marketing, World Heritage Site inscription will result in increased visitor usage. This needs to be seen in the context of existing targets for growth of the tourism sector in the region generally, as the nominated Site could make a significant contribution not only to the economic benefits derived from this growth, but also to strategies to manage the impact of tourism on the environment. The candidate World Heritage Site is a member of the Cornwall Sustainable Tourism Project, which aims to encourage the existing, and foster an increase in, sustainable behaviour within the tourism industry.

Recent policies pursued by local authorities and tourism agencies in Cornwall and West Devon are designed to extend the region’s visitor season from the traditional peak months of July and August, when traffic congestion is sometimes severe, into the "shoulder" months of spring and autumn, when there is capacity to accommodate more visitors. The strategies also aim to increase income from tourism by developing the cultural tourism markets, which are less high-season focussed.
 

The development of the proposed Cornwall and West Devon Mining Landscape World Heritage Site will complement this strategy by providing visitor experiences which interpret authentic Cornish culture and heritage and appeal to these markets. The World Heritage Site Marketing Strategy differentiates between those nominated Site areas that are suitable for and can sustain an increase in visitors and those where this would not be appropriate, and includes the development of a visitor management strategy as a key objective.
 
Cyclists on one of the Mineral Tramways routeways. © Barry Gamble.

In addition to road traffic pressures, agencies concerned with the care of Cornwall’s natural assets, including the County Council, the National Trust and the Cornwall and Tamar Valley Area of Outstanding Natural Beauty, have identified erosion of footpaths as a key concern. Measures to deal with this are already in place as part of their respective management plans. World Heritage Site status would help to secure public support for these by highlighting the historical significance of the nominated Areas and justifying action taken to conserve them.

Other potential pressures deriving from visitor access to sites within the nominated Site include:

  • the visual and environmental impact of new or expanded facilities

  • the need to integrate socially inclusive service provision with a contribution to economic regeneration

During the lifespan of the Management Plan the World Heritage Site Office will work with owners, operators and agencies concerned with the management of visitor facilities within the nominated Site areas to define individual area marketing and interpretation plans that take into account their particular circumstances, including capacity for growth, and set appropriate actions and targets. In some areas this will involve substituting greater access to information about some sites (e.g. through publications and websites), instead of promoting further physical access to them. Each nominated Site Area marketing plan will address the following identified pressures:

Morwellham (Tamar Valley) situated in the Tamar Valley Area of Outstanding Natural Beauty. © Barry Gamble.

  • Authenticity of experience – marketing plans must balance authenticity in interpreting mining heritage with contemporary environmental concerns. A range of interpretation and presentation techniques will need to be employed to convey the authentic experience whilst protecting their present atmosphere.

  • Traffic management – the South West region generally, but Cornwall in particular, experiences severe traffic flow problems in July and August. World Heritage Site status, if granted, will be used to support shoulder month initiatives linked to the tourism markets for landscape, heritage and cultural appreciation, and in so doing contribute to strategies to spread visitor numbers more evenly throughout the year. Marketing plans will include active promotion of rail, bus and cycle access to sites.

  • Public safety – where relevant, mine site safety guidelines will be provided, including advice regarding arsenic and other contaminants.

  • Quality of design – where visitor facilities are developed they will be expected to follow the principles of sympathetic design. In towns within the proposed World Heritage Site where the Cornwall and Scilly Urban Survey or Cornwall Industrial Settlements Initiative have established the urban landscape character this should be reflected in any development proposals. In rural areas a range of existing controls, e.g. through the Area of Outstanding Natural Beauty Management Plans, are already in place to exert control over the quality and appropriateness of proposed developments.

  • Protection of wildlife – interpretation and visitor access should not result in the loss of significant habitats or other threats to species diversity.

  • Equality of opportunity – in compliance with the Disabilities Discrimination Act, action to ensure World Heritage Site visitor information and services are accessible to all will be prioritised. Marketing plans should identify the range of target audiences to be served, including local residents within the proposed World Heritage Site and develop pricing and access policies which take into account economic circumstances.

  • Optimum economic benefit – to ensure that the proposed World Heritage Site visitor management strategy contributes to the wider economic regeneration agenda, each individual nominated Area marketing plan will be developed in consultation with the Integrated Area Partnerships, District Councils and regional agencies.

Inhabitants within the property

Within the ten nominated Areas there are an estimated 81,535 residents; 26,531 of these live within the Camborne and Redruth Area. Awareness of the World Heritage Site Bid has been raised through a Communication Plan which identified different audiences and interest groups within Cornwall and West Devon and appropriate methods of disseminating information to these. This has included a number of articles in the press, television coverage, over 20 talks to local societies and community groups by members of the Bid team and Officer Working Group, and numerous visits to the Cornish Mining website, which has generated enquiries from overseas, particularly from those descended from migrant Cornish miners.

Wider participation, particularly by residents within the World Heritage Site bid Areas, is actively sought and managed through the Cornwall and West Devon Mining Landscape Consultation Strategy and Programme. This recognises that, for a proposed World Heritage Site with 10 Areas and the number and variety of communities within these, effective participation requires utilising existing successful consultation mechanisms, including those established by local authorities in developing Community Strategies and other local priority setting exercises. The World Heritage Site Consultation Programme includes formally constituted community authorities, such as Town and Parish Councils, Integrated Area Partnerships, set up to advise on priorities for Objective One investment, and questionnaires distributed to the Cornwall People’s Panel. In addition, all existing community strategies and plans will be assessed to influence the implementation of the management plan and to identify how World Heritage Site status could contribute to achieving agreed development priorities. This programme has been integrated into the Management Plan, as a five year commitment from 2004 to 2009, to guide drafting, implementation and ongoing monitoring. Morwellham situated in the Tamar Valley Area of Outstanding Natural Beauty.

 
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