GLENSANDA QUARRY PROPOSED SILT MANAGEMENT
ENVIRONMENT IMPACT ASSESSMENT REPORT
SLR Ref: 403.00275 Version No: DRAFT October 2017
INTRODUCTION 1
CONTENTS
INTRODUCTION ...... 1-1
SUBMISSIONS STRUCTURE ...... 1-2
TERMINOLOGY ...... 1-3
THE APPLICANT ...... 1-3
EIA PROJECT TEAM ...... 1-4 Statement of Competence...... 1-4
PUBLICATION ...... 1-5
INTRODUCTION 1
INTRODUCTION
1.1 This document comprises an Environmental Impact Assessment Report (EIA Report) as required by the Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2017 and has been prepared by SLR Consulting Limited (SLR) on behalf of Yeoman Glensanda Limited (the applicant). The EIA Report presents the findings of an Environmental Impact Assessment (EIA) and is part of a package of documents being submitted to the local planning authority, The Highland Council (THC), to accompany a planning application in respect of land at Glensanda Quarry, Morvern.
1.2 The planning application seeks permission for new settlement lagoons for the management of silt arising from the existing quarry processing plant, together with ancillary infrastructure including associated pipelines and access roads. The proposed development would allow the continued use of the existing washing plant in order to produce a wide range of clean aggregates. Allied to this, the planning application seeks permission for a hydroelectric power (HEP) scheme, in which electricity produced would be used to provide power to the various electrically driven processes around the Glensanda Quarry complex, including the pump that would pump the silty water from the washing plant to the silt lagoons.
1.3 The Glensanda Quarry complex covers 635 hectares (ha) in total which operates under a range of planning permissions for mineral extraction, aggregates processing and distribution of products via a jetty. The area to which the planning application relates (referred to as the application site) extends to around 120 hectares (ha) of which around 70% would be within the existing consented area. In the context of the proposed silt lagoons, the development area would be around 39 ha. The proposed development is situated on the western side of the quarry complex; the location and boundary are shown on drawings FL01: Site Location and FL02: Site Boundary, respectively.
1.4 The EIA Report covers the proposed development of new settlement lagoons for the management of silt arising from the existing quarry processing plant, together with ancillary infrastructure including a hydroelectric power plant, associated water pipelines, and access roads. Details of the proposed development are set out in Chapter 3 below.
1.5 The EIA Report aims to provide an objective account of the possible significant environmental effects of the proposed development by setting out the results of the EIA which has been undertaken. It is intended to provide the local planning authority (i.e. THC) with sufficient information to determine the planning application having due regard to the protection of the environment as a whole. The EIA Report has been prepared in line with the framework provided in the Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2017 (the 2017 EIA Regulations), with regard to the guidance set out in Circular 1/2017 “The Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2017”; Planning Advice Note (PAN) 1/2013 (Rev. 1.0, June 2017) “Environmental Impact Assessment”; and The Institute of Environmental Management and Assessment’s “Guidelines for Environmental Impact Assessment”.
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INTRODUCTION 1
SUBMISSIONS STRUCTURE
1.6 This EIA Report is part of a multi-volume submission to accompany the planning application. In addition to the formal planning application forms and certificates, the full submission comprises:
Environmental Impact Assessment Report (EIA Report); A Non-Technical Summary (NTS) of the EIA Report; Planning Statement; and Pre-application Consultation (PAC) Report.
1.7 The NTS has been produced as a separate document to accompany the planning submission, being a mandatory part of the EIA Report. This provides, in non-technical language, a brief summary of the likely significant effects that the proposed development would have on the environment.
1.8 The Planning Statement supports the planning application and considers the proposal in the context of relevant planning policies and strategies, and other material considerations, including sustainability.
1.9 The PAC Report is a statutory requirement to accompany a planning application for a major development and reports on the consultation undertaken by the applicant prior to submission of the planning application.
1.10 This EIA Report is structured as follows:
Chapter 1: Introduction; Chapters 2 to 6 comprise chapters on Site and Surroundings; Proposed Development; Alternatives; Policy Context and Approach to EIA: this part is essentially descriptive in nature, setting out an overview of the application site and the surrounding area; it describes the proposed development and the alternatives considered, reviews the planning policy context of the application site and sets out the approach taken in carrying out the EIA; Chapters 7 to 13 report on the findings of the EIA. For each environmental topic, the relevant data and background information are provided and the potential impacts are predicted and assessed. Mitigation measures are recommended, where appropriate, and the significance of any residual effects are considered. Drawings, together with any additional information which is included within an appendix, are provided at the end of each chapter. The specific issues considered are:
o Chapter 7 Landscape and Visual; o Chapter 8 Ecology; o Chapter 9 Geology and Water Environment; o Chapter 10 Cultural Heritage and Archaeology; o Chapter 11 Other Potential Effects; o Chapter 12 Accident and Natural Hazards; o Chapter 13 Cumulative Effects and Mitigation.
A Schedule of Mitigation is included in Chapter 13.
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INTRODUCTION 1
TERMINOLOGY
1.11 Throughout the planning application documents the terminology shown in Table 1-1 is used when describing the proposed development and
Table 1-1 Terminology Term Description Application Site The proposed development area which extends to 120 ha, of which all but 35ha is within the existing complex. Glensanda Quarry complex The existing operational area which covers 635 ha and comprises the extraction (or quarry complex) area (quarry), processing plant, storage areas, access roads, jetty, and other ancillary plant, buildings, and operational land. Quarry area The quarry void where granite is extracted. Primary Processing Area The primary crushing plant, which is located in the quarry area, and associated conveyors. Secondary Processing Area This includes crushing and washing plant, with associated screens, conveyors, stockpiles, ship loading facilities, jetty, and accommodation buildings. Washing plant This is an existing facility within the Secondary Processing Area that washes aggregates and produces silt suspended in the discharged water as a by- product. Filter cake A semi-dry material currently produced by mechanical de-watering of the output from the washing plant. Filter cake disposal site The area where filter cake from the processing plant is currently disposed of by land raising techniques. Finger lagoons The proposed lagoons for the settlement of suspended silt; silty water from the washing plant would be discharged into the finger lagoons and silt would settle out under gravity, resulting in clean water for recirculation to the washing plant. Study area The application site plus any additional area over which desk based or field assessments have been undertaken and reported. The study area varies depending on the nature of the potential effects for each environmental parameter, as informed by professional guidance and best practice regarding EIA. The study area is therefore explained within the approach and methods section of the relevant chapter. THE APPLICANT
1.12 Yeoman Glensanda is a part of Aggregate Industries. Aggregate Industries is a leading player in the United Kingdom in the construction industry, manufacturing and supplying a comprehensive range of building and construction materials. Both companies belong to the LafargeHolcim Group, one of the world's largest manufacturers of cement and concrete.
1.13 Further information on Yeoman Glensanda and Aggregate Industries can be found on the corporate website at www.aggregate.com.
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INTRODUCTION 1
EIA PROJECT TEAM
1.14 The EIA was managed, and this EIA Report prepared, by SLR Consulting Ltd.
1.15 SLR is a multidisciplinary consultancy and a leading planning and EIA consultant to the mining and minerals industry in the United Kingdom.
1.16 SLR is a Member of the Institute of Environmental Management and Assessment (IEMA) and holder of the IEMA EIA Quality Mark. The company has extensive experience in the preparation of planning applications and undertaking EIA for a wide variety of projects including minerals, waste, renewable energy and infrastructure developments.
1.17 Further information on SLR can be found on its corporate website at www.slrconsulting.com.
1.18 In preparing this planning application and EIA Report, SLR has drawn upon the expertise of an in- house team of appropriately qualified and experienced specialists comprising town planners, landscape architects, geologists and environmental scientists for the technical assessments. SLR has also worked closely with the management teams and technical staff of Yeoman Glensanda to ensure that the scheme is feasible as well as optimising environmental protection.
Statement of Competence
1.19 Regulation 5 of the EIA Regulations introduces a new requirement for the “developer to ensure that the environmental statement is prepared by competent experts”, with the environmental statement to be “accompanied by a statement from the developer outlining the relevant experience and qualifications of such experts”.
1.20 The EIA Report has been prepared by SLR Consulting Ltd which has a specialist capability in mineral and waste planning. SLR is a member of the Institute of Environmental Management and Assessment (IEMA) with an awarded EIA Quality Mark. The EIA Quality Mark is a voluntary scheme, operated by the IEMA through which EIA activity is independently reviewed, on an annual basis, to ensure it delivers excellence in the following areas:
EIA Management; EIA Team Capabilities; EIA Regulatory Compliance; EIA Context & Influence; EIA Content; EIA Presentation; and Improving EIA practice.
1.21 The EIA Report has therefore be prepared by ‘competent experts’, and is supported by an EIA project team with expertise and experience in the technical disciplines to be assessed. The project team is identified in Table 1-2.
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INTRODUCTION 1
Table 1-2 Summary of Competence
Years of Chapter Specialist Assessor Qualifications Experience
Morag Eaton BSc (Hons), MURP, MRTPI. 11 Planning Policy and EIA Co- Associate Planner ordination Chris Lowden BSc(Hons), MRICS, MIQ 27 Technical Director Graeme Glencorse Associate Landscape HND, BSc, PG DIP, CMLI 9 Architect Landscape and Visual Simon Higson Assessment MIQ, CMLI, BA (Hons), MA, CHort 17 Technical Director Lindsay Guthrie MA (Hons), MPhil, CMLI 25 Technical Director Michael Austin MCIEEM 30 Senior Ecologist Ornithology and Ecology Dr Rhys Bullman BTEC HND, BSc (Hons), PhD 25 Principal Ecologist Colin Duncan Peat Management BSc (Hons), MSc, FGS. 30 Technical Director David Wright BEng, MICE, MCIWEM, CEng, CWEM 25 Technical Director Water Environment Gordon Robb BSc (Hons), MSc, FCIWEM, MBA, 25 Technical Director C.WEM. Andy Bates BSc (Hons), MSc, MSc 21 Senior Archaeologist Cultural Heritage Tim Malim BA (Hons), FSA, MIFA. 37 Technical Director Anne Dugdale BSc (Hons), MA, MRTPI, FIQ 34 Principal Planner Other Matters Alison Sidgwick BSc (Hons), MSc, MRTPI. 15 Technical Director
PUBLICATION
1.22 As recipient planning authority of this EIA Report, THC is required to publicise the availability of the EIA Report in accordance with Regulations 20 and 21 of the EIA Regulations. The requirements include (i) notifying those with an interest in “neighbouring land” and (ii) advertising the publication of the EIA Report in the local press, the Edinburgh Gazette and the application website. An electronic version of the planning submission, including the EIA Report, will be available to download from the THC application website at
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INTRODUCTION 1
http://www.highland.gov.uk/info/180/planning_- _applications_warrants_and_certificates/143/planning_permission/6.
1.23 Copies of the EIA Report can be obtained by writing to SLR or Yeoman Glensanda at the following addresses:
SLR Consulting Ltd Yeoman Glensanda Limited No.68 Stirling Business Centre c/o Aggregate Industries UK Limited Wellgreen Trilogy 3, 21 Woodhall, Stirling Eurocentral FK8 2DZ Holytown Motherwell ML1 4YT
1.24 The EIA Report and other volumes are available in both paper and CD Rom formats. The CD copies are available for a charge of £25, however, due to the size of the application and printing costs there is a charge of £200.00 per hard copy. An electronic copy of the NTS is available free of charge on request, subject to the provision of a valid email address.
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SITE DESCRIPTION 2
CONTENTS
INTRODUCTION ...... 2-1
LOCATION ...... 2-1 The Glensanda Quarry Complex ...... 2-1 The Application Site ...... 2-1
SITE DESCRIPTION ...... 2-2 Land Use ...... 2-2 Topography and Watercourses ...... 2-2
THE SURROUNDING AREA ...... 2-3
ENVIRONMENTAL DESIGNATIONS ...... 2-3 Landscape Designations...... 2-3 Cultural Heritage and Archaeological Designations ...... 2-4 Ecological Designations ...... 2-4
SENSITIVE RECEPTORS ...... 2-4
PLANNING HISTORY ...... 2-4 Quarry Complex ...... 2-4
SITE DESCRIPTION 2
INTRODUCTION
2.1 This chapter of the EIA Report describes the existing physical and environmental characteristics of the application site and the surrounding area.
2.2 In setting out ‘baseline’ characteristics, other chapters within the EIA Report provide detailed descriptions of the application site in relation to each particular environmental topic. In this respect, Chapter 7: Landscape and Visual describes the landscape character and topography of both the application site and its surroundings; Chapter 8: Ecology describes ecological interests; the Water Environment is described in Chapter 9, whilst Cultural and Archaeological interests are described in Chapter 10. Peat Management issues are set out in Technical Appendix 9/1, appended to Chapter 9: Water Environment.
2.3 This chapter therefore provides an overview of the application site and its environs. LOCATION
The Glensanda Quarry Complex
2.4 The application site is located within the Glensanda Quarry complex which covers an area of approximately 635ha on the south-western shore of Loch Linnhe, on the Morvern peninsula. The Glensanda Quarry complex is approximately 19km north-north-west of Oban. The island of Lismore is approximately 5km to the south-east across Loch Linnhe. The location of Glensanda Quarry is shown on Drawing FL01 and the application site is outlined in red on Drawing FL02. For identification purposes the Glensanda Quarry complex is centred on grid reference NGR NM818486.
2.5 Glensanda Quarry is a large coastal ‘super-quarry’ with no road access. Access to the complex is by boat via the applicant’s port facility at Rhugh Garbh Depot at Barcaldine, Argyll. A notable feature of Glensanda Quarry is therefore that all products are exported by sea, via its purpose- built jetty and sea carriers.
2.6 Glensanda Quarry exports approximately 7 million tonnes (Mt) a year of high quality crushed granite products to markets across Northern Europe; products range from washed sand through to armour stone for coastal defence work.
The Application Site
2.7 The application site is located in the western part of the quarry complex. It covers an area of approximately 120 ha and includes not only the area for the new silt lagoons immediately west of the main quarry void but also a downstream area connecting the silt lagoons to the Secondary Processing Area. This downstream section of the application site follows the Allt Feith Mhic Artair valley and encompasses the proposed connecting pipelines, pump house, hydroelectric power house and other infrastructure.
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SITE DESCRIPTION 2
2.8 The application site boundary is shown on Drawing FL02. Grid references for the main items of infrastructure are as follows:
Proposed silt lagoons - centred on NGR NM801492. Hydroelectric Power (HEP) plant - centred on NGR NM822470. SITE DESCRIPTION
Land Use
2.9 The northern (upper) part of the application site currently comprises moorland. The area where the proposed settlement lagoons would be constructed is located in a shallow hanging valley that collects the headwaters of the watercourse known as Allt Feith Mhic Artair. The flow of the Allt Feith Mhic Artair has been affected by quarrying activity with much of its headwaters receiving run-off directly from the quarry floor.
2.10 Within the valley of the Allt Feith Mhic Artair is a series of rockfill dams providing settlement and attenuation of flows, and a reinforced concrete structure known as the Wash Plant Dam. The Wash Plant Dam holds back a small reservoir known as the Wash Plant Reservoir that provides ‘top up’ water for the washing plant within the Secondary Processing Area at the base of the slope.
2.11 The lower part of the application site comprises that part of the Secondary Processing Area that includes the washing plant, and also the existing filter cake disposal area.
2.12 The upper and lower sections of the application site are connected by an existing access road that is used to transport personnel and equipment to the quarry area. The road is some 5.8km long in total.
2.13 The main features of the application site and quarry complex are shown on Drawing FL06: Site Context.
Topography and Watercourses
2.14 At its highest point, the application site extends to nearly 500m Above Ordnance Datum (AOD), although most of the settlement lagoon construction would take place on a relatively flat area at around 310m AOD. Downslope of the settlement lagoon area the land falls relatively steeply towards the coast. The lowest part of the application site is the existing washing plant at approximately 50m AOD.
2.15 Most of the application site is located within the catchment area of the Allt Feith Mhic Artair, which joins the Glen Sanda River approximately 1km from the coast. The Allt Feith Mhic Artair is joined by several other minor watercourses between the quarry and the Glen Sanda River, including the Allt na h-Easaiche.
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SITE DESCRIPTION 2
2.16 The application site also extends into the catchment of a minor un-named watercourse to the west; this watercourse forms part of the headwaters of the Allt Budhe Mor which flows in a predominantly westerly direction and ultimately outfalls to the sea to the north-west. THE SURROUNDING AREA
2.17 The area surrounding the application site is rural and remote in nature, being Highland hills and moorland. The predominant land uses are stalking, fishing, agriculture and forestry. There are a number of areas of woodland within 5km of the site.
2.18 There is a hydro-electric generating station at Loch Usige at Kingairloch.
2.19 The nearest residential properties, together with a number of holiday lets, are some 4km to the north-east at Kingairloch and on Lismore across Loch Linnhe.
2.20 The land uses and surrounding local features can be appreciated to some extent from the aerial photograph in Drawing FL03. ENVIRONMENTAL DESIGNATIONS
2.21 There are no environmental designations within the planning application site nor, with the exception of a scheduled monument (Glensanda Castle), within the wider Glensanda Quarry complex.
2.22 Part of the site is identified on the Scottish Natural Heritage (SNH) Carbon Map as priority 1 peatland habitat. The mapping is a predictive tool for use by local authorities. SNH's guidance emphasises “The location of a proposal in the mapped area does not, in itself, mean that the proposal is unacceptable, or that carbon rich soils, deep peat and priority peatland habitat will be adversely affected. The quality of peatland tends to be highly variable across an application site and a detailed assessment is required to identify the actual effects of the proposal.”
2.23 The quality of the peatland habitat is described in Chapter 8: Ecology, and Technical Appendix 9/1: Peat Management.
Landscape Designations
2.24 The application site is located approximately 4.8km to the west of the Lynn of Lorn National Scenic Area (NSA).
2.25 The site is also located approximately 5km to the south-west of Ardgour Special Landscape Area (SLA) and approximately 2.8km to the north of the Inninmore Bay and Garbh Shlios SLA as identified in the Assessment of Highland Special Landscape Areas.
2.26 Landscape designations within 5km of the application site are shown on Drawings FL05a.
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SITE DESCRIPTION 2
Cultural Heritage and Archaeological Designations
2.27 There are two Scheduled Monuments (Glensanda Castle and Airigh Shamhraidh) located within 3km of the application site. A further four Scheduled Monuments are located within 5km of the application site.
2.28 There are three Grade C Listed Buildings located within 5km of the application site.
2.29 Cultural heritage and archaeological designations within 5km of the application site are shown on Drawing FL05a.
Ecological Designations
2.30 The Garbh Shlios Site of Special Scientific Interest (SSSI) and Morvern Woods Special Area of Conservation (SAC) are located some 4km to the south-west of the application site. The Eileanan Agus Sgeiran Lios Mor SAC is located some 4km east of the application site.
2.31 There are several areas of woodland within 5km that are recorded in the Semi-Natural Ancient Woodland Inventory or Ancient Woodland Inventory.
2.32 Ecological designations within 5km of the application site are shown on Drawing FL05b. SENSITIVE RECEPTORS
2.33 The application site is relatively remote from sensitive human receptors, the nearest residential or holiday let properties being approximately 4km to the north at Kingairloch and 5km to the south east on Lismore. PLANNING HISTORY
Quarry Complex
2.34 Outline planning permission (reference LO/1982/40) was granted in 1982 for quarrying including the ‘glory hole’ principle.
2.35 Detailed planning permission (reference LO/1983/494) was granted in 1984 for quarrying for 25 years (i.e. until May 2007) and included an output limit of 7.5 million tonnes per annum.
2.36 Planning permission (reference LO/1986/167) was granted in December 1989 for a revised quarry masterplan that included relocating the extraction area to higher up the mountain (to its current location).
2.37 Planning permission (reference LO/1989/723) was granted in March 1990 for secondary crushing and screening plant near the foreshore. This permission also extended the life of the quarry to 2015 and the output limit was raised to 15 million tonnes per annum.
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SITE DESCRIPTION 2
2.38 In January 2003 planning permission (reference 02/00189/FULLO) was granted consolidating the previous consents into a single permission with the permitted life of the quarry extended until 2043.
2.39 In addition to the above permissions for quarrying there have been a number of other planning permissions granted for inter alia continued use of the small boat harbour, erection of aggregate plant and modifications to stockpiling arrangements.
2.40 In 1997 planning permission (reference LO/1997/41) was granted for an aggregate washing plant and filter cake disposal.
2.41 The life of the filter cake disposal site was extended until July 2017 by planning permission 07/00229/FULLO which was granted in July 2007.
2.42 A further application (reference 17/02847/S42) was submitted to THC in June 2017 under Section 42 of the Town and Country Planning (Scotland) Act 1997 as amended to extend the life of the filter cake disposal site by eight years. This application was approved on 1 August 2017 and has extended the life of the filter cake disposal site until July 2025, although in practical terms capacity is not expected to last until 2025.
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
CONTENTS
INTRODUCTION ...... 10-1 Legislation, Guidance and Industry Good Practice ...... 10-2 Sources of Information ...... 10-2 Consultations ...... 10-3
METHODOLOGY ...... 10-4 Assessment Structure ...... 10-4 Effects Scoped Out ...... 10-4
BASELINE CONDITIONS ...... 10-4 Introduction ...... 10-4 Nationally Designated Heritage Assets ...... 10-4 Known Heritage Assets within the Inner and Outer Study Areas ...... 10-5 Assessment of Effects ...... 10-9
POTENTIAL IMPACT ...... 10-10
MITIGATION MEASURES ...... 10-10
RESIDUAL EFFECTS ...... 10-11
CONCLUSION ...... 10-11
REFERENCES ...... 10-12
CULTURAL HERITAGE AND ARCHAEOLOGY 10
INTRODUCTION
10.1 The ‘cultural heritage’ of an area comprises archaeological sites, historic buildings, gardens and designed landscapes, historic battlefields and other historic environment features. It also includes features or places which have the capacity to provide information about past human activity, or which have cultural significance due to associations with literary or artistic work, folklore or historic events. The ‘setting’ of an asset within the wider landscape may contribute to its cultural heritage significance.
10.2 This chapter of the EIA Report considers the potential effects the construction and operation of the proposed development may have on heritage assets within the application site (refer to Chapter 2: Site Description) and the surrounding area. A full description of the proposed development is given in Chapter 3: Project Description of this EIA Report. The assessment includes consideration of all known designated and non-designated cultural heritage assets within the application site and the ‘Inner Study Area’, defined as an area up to 2km from the application site boundary, and designated assets within an ‘Outer Study Area’, defined as up to 3km from the application site.
10.3 The assessment is based on a range of data, including the known heritage assets recorded by regional and national bodies; readily available secondary works; and the results of walkover surveys by an experienced archaeologist.
10.4 The historic development of the Inner Study Area is discussed in the context of the wider region in order to predict the direct impact on any known or potential unknown archaeological remains within the application site. Indirect impacts are based on nationally designated assets within the Inner Study Area and an Outer Study Area of 3km beyond the application site boundary. Measures necessary to safeguard or record any assets potentially affected by the proposed development are suggested where appropriate.
10.5 For the purposes of this assessment the historic environment is considered to consist of a variety of historic assets. The historic environment resource includes the following types of designated assets:
World Heritage Sites; Scheduled Monuments (SMs); Listed Buildings; Battlefields; Conservation Areas; and Gardens and Designed Landscapes.
10.6 These designations are considered to be of national importance, with the caveat that only category A listed buildings are considered to be of national importance.
10.7 In addition, the following non-designated assets are also considered in the assessment:
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
nationally/regionally recorded archaeological sites and finds; and other buildings and structures of historic or architectural importance.
10.8 SLR Consulting Ltd is a Registered Organisation with the Chartered Institute for Archaeologists (CIfA) and has undertaken this cultural heritage assessment.
Legislation, Guidance and Industry Good Practice
10.9 Relevant legislation and policy documents include:
The Ancient Monuments and Archaeological Areas Act 1979; The Planning (Listed Buildings and Conservation Areas ) (Scotland) Act 1997; The Historic Environment (Amendment) (Scotland) Act 2011 (this includes amendments to the above); Scottish Planning Policy 2014 (Scottish Government 2014); Historic Environment Scotland Policy Statement (HESPS 2016); Historic Environment Circular 1 (HES May 2016); and Highland-Wide Local Development Plan (2012)
10.10 A number of relevant pieces of guidance have been published by the national heritage agency, Historic Environment Scotland (HES), and the professional archaeological body, the Chartered Institute for Archaeologists. These publications are:
Historic Scotland’s Managing Change in the Historic Environment: Setting (2016). This document provides guidance on how to assess what constitutes the setting of historic structures or places. This is the key document available to assist in managing change; Chartered Institute for Archaeologists (CIfA) Standard and Guidance for Historic Environment Desk-Based Assessment (CIfA 2014a); and CIfA Code of Conduct (CIfA 2014b).
Sources of Information
10.11 The baseline position has been characterised from the following sources:
data held in The Highland Council (THC) Historic Environment Record (HER); the database of the HES, ‘Canmore’; aerial photographic data held at the National Collection of Aerial Photography, Edinburgh; historic mapping on-line at the National Library of Scotland; listings of designated cultural heritage assets; appropriate published archaeological and historical works; and HES Historic Land-use assessment.
10.12 Historic assets within the Inner and Outer Study Areas are numbered in the following text as set out in the gazetteer in Technical Appendix 10/2: Cultural Heritage Impact Assessment Gazetteer of Heritage Assets. As this gazetteer is composed of records from a number of sources, these have been combined into a single sequence with each assigned an SLR Number. References to
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
other coding systems, e.g. THC HER and HES Canmore are also included in this Technical Appendix.
Consultations
10.13 Pre-scoping consultation was undertaken with HES and The Highland Council Historic Environment Team (THCHET) with regard to the methodologies employed by this assessment. This consultation was undertaken by email. A summary of the consultation is provided in Table 10-1.
Table 10-1 Summary of Pre-Scoping Consultation for Cultural Heritage (2017)
Authority Response Method Comments/Action Taken
HES HES are content with the scope of the Email Airigh Shamhraidh (Scheduled assessment proposed. For their interests, it Monument) was removed from any 17/05/17 appears likely that only significant impacts further assessment. would be those on the setting of Glensanda Castle (Scheduled Monument). Depending on the specifics of the proposal, it is possible that HES may be content to scope out their interests entirely. HES do not require any assessment of Airigh Shamhraidh (Scheduled Monument).
THCHET In general THCHET were satisfied with the Email HES had previously responded to methodology proposed. THCHET suggested consultation, stating they were 31/05/17 Scheduled Monuments, such as Castle content with the scope of the Coeffin on Lismore or Castle Stalker, Argyll, assessment. beyond the 3km Outer Study may require assessment. As these sites are outside of the remit of THC, they recommended confirming the proposed methodology with HES.
HES HES reiterated that the only potential Letter The setting of Glensanda Castle has significant effect appears to be possible been addressed in the EIA report. THC 15/09/17 impact upon the setting of Glensanda Castle Archaeologist has been consulted. (Scheduled Monument). They also noted that the Highland Council archaeologist would also provide advice, not solely upon locally important asserts
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
METHODOLOGY
10.14 A detailed description of the approach and methods employed by this assessment is provided in Technical Appendix 10/1. The Technical Appendix details: the Study Areas employed; the direct and indirect effects assessed; the sources of data consulted; the method by which the significance of effect are arrived at for individual assets; and the guidance documentation followed by this assessment.
Assessment Structure
10.15 The assessment is organised in the following stages:
baseline data set in historic context; assessment of the heritage significance; assessment of the potential impact of the proposed development in the historic environment; and outline mitigation strategy.
Effects Scoped Out
10.16 Effects on the impacts on the setting of Airigh Shamhraidh Scheduled Monument (SLR Nos 11-14; SM5679) have been scoped out. The Zone of Theoretical Visibility indicates that the proposed development would not be visible from the site, and in consultation HES stated they required no assessment of this monument. BASELINE CONDITIONS
Introduction
10.17 The landscape character of this part of the highland is characterised by upland granite moorland and rough grazing. It is an area of open and exposed moorland with boggy grasses, little heather and few trees. The land cover is broken up by boulders and rocky summits, and many derelict crofts lie at the edge of the moor in more sheltered locations (Scottish Natural Heritage 1998, 113). All heritage assets within the Inner Study Area are presented in Drawing FL 10.1 and listed in Technical Appendix 10/2. Where heritage assets are referenced in this chapter they are identified by their Gazetteer number and where appropriate Scheduled Monument index number under which they are registered by HES. The location of nationally designated sites, gazetteer sites, and a Zone of Theoretical Visibility (ZTV) are presented in Drawing FL 10.2.
Nationally Designated Heritage Assets
10.18 There are no World Heritage Sites, Listed Buildings, inventoried Battlefields or Garden Designed Landscapes within the study areas. There are two statutorily designated heritage assets within the Outer Study Area, both scheduled monuments. These are shown in Table 10-2. Airigh Shamhraidh lies partially within the Inner Study Area, and both are outside of the application site boundary.
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Table 10-2 Designated Assets within the Outer Study Area
Name Type and Category Index/Reference SLR No. Number
Glensanda Castle Scheduled Monument SM4358 9
Airigh Shamhraidh, house, enclosures and field Scheduled Monument SM5679 10 system
Known Heritage Assets within the Inner and Outer Study Areas
10.19 There are no known heritage assets within the application site boundary. Within the Inner Study Area there are 13 assets recorded by the HER and 11 in Canmore. Once duplications between these two sources of data are accounted for, there are 13 recorded assets.
10.20 There are no recorded prehistoric or Roman remains or finds of artefacts within the study areas.
Medieval
10.21 Within the Inner Study Area, Uamh a' Choilich (SLR No. 12) is a cave which by tradition was the starting place which Sommerled, a Celtic hero, and his father, Gillebride, inhabited and set out from for in their encounter with the MacInnesses. Sommerled was a mid-12th century lord who seized control of the Kingdom of the Isles.
10.22 Glensanda Castle (SLR No. 9) is a Scheduled Monument (SM4358) situated on the north western shores of Loch Linnhe to the north of the mouth of the River Glensanda. The castle has been known under several names: Caisteal na Gruagaich ('Maiden's Castle'), Castle Na'gair, Castle-en- Coer, Castle Mearnaig and Castle of Glensanda (HER MHG316).
10.23 The Tower House is situated on a prominent outcrop of rock approximately 30m high, and although not closely dated its form suggests it was constructed in the early 15th century. It is said to have been constructed by Ewen McLean, the 5th Earl of Kingairloch, who was born in 1450. Today the building is roofless, but the walls survive to the level of the parapets. The remains of outbuildings are visible to the south of the tower, with another possible outbuilding and well close to the western corner. In places around the rocky summit are traces of walls situated to obstruct access to the tower in vulnerable points (op cit).
10.24 The earliest map evidence depicting the castle and its environs is the 18th century Military Map of Scotland, depicting buildings and agricultural features in the vicinity of Glensanda Farmstead to the west (Roy 1747 – 55; SLR No.’s 2, 3, 4 and 11). It is feasible that Glensanda Township also has some antiquity.
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
Post-Medieval
10.25 Airigh Shamhraidh is the site of a Township, and a Scheduled Monument (SM5679; SLR No. 11), the scheduled area of which lies partly within the Inner Study Area. Within the scheduled area there are the sites of a Laird’s House, corn drying kilns, enclosures and rig and furrow. Documentary evidence records the site as a place of permanent occupancy from 1500 AD. The name of the site is gaelic for ‘Summer Shieling’, which may suggest previous use of the site as accommodation for people tending animals in summer pastures.
10.26 The Laird’s House was constructed around 1738 (now ruined) as the main residence of the Kingairloch estate. Laird’s Houses were a form of residence constructed by small landowners influenced by the fashion for symmetry rather than the needs of defence (Beaton 1997). When the estate was brought by James Forbes of Hutton Hall the principal residence was established at Corry, the present Kingairloch House, and the older mansion became a subsidiary farm.
10.27 There are two other sites of shielings (SLR No.’s 1 and 6). Although probably utilised for summer accommodation in the post-medieval period, they potentially have medieval origins.
10.28 Glensanda Township, farmstead and field system (SLR No. 4) is undated, but is depicted on the 1st edition Ordnance Survey map (OS 1875). The site includes a farmstead (SLR No. 2), farm house (SLR No. 3) and bothy (SLR No. 11). Although not labelled, buildings are depicted in the environs of the existing buildings on Roy’s military map of Scotland (Roy 1747 – 52) in a in a different configuration to those of today.
10.29 Two further undated buildings are recorded within the Inner Study Area. The ruins of a building that may have been of a farmstead (SLR No. 7) is depicted on the first edition Ordnance Survey map of the area (OS 1875). A second building is depicted as an unroofed structure on the same map (ibid) (SLR No. 5).
Modern
10.30 The HER and Canmore record the existing works of Glensanda Quarry (SLR No.’s 8 and 13), which began operations in c. 1986.
Conclusions
10.31 The landscape today largely appears to be the results of post-medieval activity, notably farmsteads and shielings (SLR No.’s 1 – 4, 6, 7 and 11). Most of the known heritage assets are located along the coast, with some shielings in more upland environments close to water courses. Medieval assets are evidence by the Tower House at Glensanda Castle (SLR No. 9), and the historical association of Summerled with Uamh a' Choilich (SLR No. 12. In the post-medieval period, the Laird’s House at Airigh Shamhraidh (SLR No. 10) became the principal residence of the Kingairloch estate.
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
Historical Mapping
10.32 The earliest map which clearly depicts Castle Glensanda (SLR No. 9) is Pont’s map of the region, published in Blaeu (1654). The castle is depicted upon a number of subsequent maps of Scotland, but Roy’s military survey (Roy 1747 – 55) of Scotland is the first which provides further detail. It depicts both the castle labelled as ‘Castle na Chuirn’ and buildings in the vicinity of Glensanda Farmstead (SLR No. 4), both surrounded by agricultural land.
10.33 The 1st edition 1:10,560 (6 inch) OS map provides detailed mapping of the area (OS 1875). It labels the castle as ‘Caisteal ne Cruagaich (Ruins Of)’. The castle is depicted within an oval enclosure. The farmstead of Glensanda, largely in its current configuration of buildings and enclosures minus some later additions, is depicted to the west of the castle. A sheepfold is depicted within the area of the existing quarry workings, and is no longer in existence. The port is labelled as ‘Port a’ Chaisteil’ (Port of the Castle). The area of the quarry and the majority of the Inner Study Area are depicted as areas of rough pasture and crags, labelled Meall na h-Easaiche. Two burns, Fèith Mhie Artair and alt na h-Easaiche, pass though the Inner Study Area which converge and then flow into the Glensanda River.
10.34 The second edition 1:10,560 map of the area is almost identical to its predecessor. A field boundary is depicted crossing the hillock Tom na h-Èilde, which has been removed by the quarry workings. Another boundary is shown within and bisecting the oval enclosure around Glensanda Castle, to the north of the castle.
10.35 Subsequent 20th century mapping shows little change to the area until the activity at Glensanda Quarry, which began in 1986.
Aerial Photographs
10.36 An inspection of vertical aerial photographic coverage held by the HES’s National Collection of Aerial Photography (NCAP) and available from on-line sources was conducted. Photographs dating back to 1946 were inspected.
10.37 Inspection of this material did not identify any sites not already recorded by the HER or Canmore.
Historic Landscape Assessment
10.38 Within the application site boundary, the Historic Landscape Assessment (HLA) records areas of: moorland and rough grazing; and quarrying. To the south, areas of medieval settlement and agriculture are recorded, as well as 17th and 18th century rectilinear fields and farms. Areas of 18th to 20th century woodland or plantations are also present in the area.
Walkover Survey
10.39 A walkover survey was undertaken on the 7th of June 2017. All areas of the proposed finger lagoons were inspected where feasible. Lower ground of the finger lagoon area was dominated by waterlogged ground conditions. A network of water channels and standing water covered areas of lower ground. To the east and within the central area of the proposed lagoons, larger pools of
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CULTURAL HERITAGE AND ARCHAEOLOGY 10
standing water were present. Areas of higher ground normally had outcrops of bedrock visible. A network of haul roads previously installed to facilitate access for site investigations crossed the site. No archaeological features were observed in the area of the finger lagoons.
Plate 1: Ground of the Proposed Silt Lagoons, angle of view from the South-South-East (left) to the South-West (right)
10.40 The area of the proposed haul road to the east, towards the existing quarry, was located upon steep ground. The gradient of the ground and proximity of the excavation of the existing access road meant it could not be safely traversed, but was inspected from safe locations (Plate 2). The western and southerly part of the haul road was inspected at the same time as the area of the finger lagoons. No archaeological features were observed.
Plate 2: Ground of the Proposed New Haul Road, looking South-West
10.41 Much of the infrastructure of the proposed Hydroelectric Power (HEP) scheme and the silt pipe would be located on areas of ground previously affected by ancillary quarry development. No archaeological features were observed on ground not impacted by the quarry.
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Potential for Unknown Heritage Assets
10.42 Within the application site there is potential for unknown archaeological sites that could be impacted upon by activities associated with the proposed development. The relatively low level of archaeological sites may reflect the lack of research or development and excavations in the wider environs of the quarry.
10.43 There are no recorded prehistoric assets within the Inner Study Area. This may be a local artefact of the regional dataset or due to the more inland position of much of the development area making it a less attractive area for settlement. Overall, the potential for prehistoric remains is low.
10.44 There are no recorded heritage assets of the Roman period within the Inner Study Area. The potential for unrecorded heritage assets from this period within the application site is considered to be very low.
10.45 Within the Inner Study Area and the Outer Study Area the known heritage assets date from the medieval and post-medieval periods. The majority of these, including Glensanda Castle (SM4358; SLR No. 9) and Airigh Shamhraidh (SM5679; SLR No. 10), are located along the shores of Loch Linnhe. Glensanda Castle is located approximately 135m to the south of the application site boundary. Historic mapping indicates both buildings and fields present to the east of Glensanda Castle by the mid-18th century, along the Glensanda River, and there is the possibility of medieval remains in the environs of the castle. The land within the application site closest to the castle has, however, been greatly affected by the existing ancillary quarry works.
10.46 At more inland locations a number of post-medieval shielings are identified adjacent to sources of water within the Inner Study Area; sites which feasibly may have medieval origins. Overall, the potential for unknown archaeological remains of medieval and post-medieval periods is low to moderate.
Assessment of Effects
10.47 The assessment of effects is based on the proposed development, which is detailed in Chapter 3 above.
Construction Effects
10.48 There are no known heritage assets within the boundary of the application site. There are, therefore, no direct impacts upon known heritage assets.
Operational Effects of the Proposed Development
10.49 The ZTV of the proposed finger lagoons and new haul road indicates that these developments would not be visible from Glensanda Castle (SLR No. 10; SM4358). These are therefore excluded from any further assessment. Both the proposed silt pipe and southerly elements of the HEP would be visible from the monument.
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10.50 The position of the castle historically provided some level of control over maritime passage along the Loch Linnhe, which continues inland to Inverlochy. It also has extensive views from the north east to the south across the loch, towards the island of Lismore and Coeffin Castle (SM2433) located on the island, along the sea loch towards the Isle of Mull, and towards the upper reaches of the sea loch. Included within short range views from the castle are the surrounding lower lying ground by which it may be approached, the River Glensanda, and Glensanda farmstead/township. Part of the appreciation of the monument is derived from an understanding of its relationship with Loch Linnhe, Lismore, the valley of the River Glensanda, and its more immediately surroundings.
10.51 The current setting of the castle has been impacted upon to the north east by partial visibility of the existing quarry works (secondary processing plant) situated adjacent to the coast and Glensanda port. These features appear in views towards the upper reaches of Loch Linnhe. The existing filter cake disposal area to the north of the castle, although in close proximity, appears in the periphery of views of the valley of Glensanda and Glensanda Farmstead. The view northwards and landform from the monument has been impacted upon by the existing filter cake disposal area, storage pile, ponds, roads and buildings, plant and machinery of the existing works. Medium to long distance views northwards encompassing the existing silt tip, lagoons, and quarry buildings do not directly contribute to our appreciation of the monument. The close proximity and scale of quarry works within the nearby views of the low ground north of the castle does negatively impact upon an appreciation of the monument.
10.52 The proposed silt pipe and water pipe of the HEP scheme, where above ground, and power house would be theoretically visible to the north of the monument. The contributions of the water and silt pipes to the landscape of the existing quarry works is very minor, and would not noticeably further negatively affect our ability to appreciate the monument. The proposed power house of the HEP would be the closest element to the monument, at approximately 130m to the north of the monument, and the most visible element of the proposed development from the monument. It would appear adjacent to the existing pond against an immediate backdrop of the surrounding filter cake disposal area, stockpiles, roads, building and landscaping of the existing works. The incremental effect from the addition of the structure would not, therefore, appreciatively further impact upon the setting of the monument. The magnitude of impact upon the monument from the development is assessed as neutral. The significance of effect would be neutral. POTENTIAL IMPACT
10.53 There is the potential for unknown heritage assets to be impacted upon during ground breaking works associated with the development of the finger lagoons and haul road. The potential for unknown heritage assets of the prehistoric and Roman periods is assessed as very low to low. The potential for unknown heritage assets of the medieval and post-medieval periods is assessed as low to moderate. MITIGATION MEASURES
10.54 A programme of archaeological monitoring is proposed during the construction period. The programme would involve a watching brief during the excavation or ground breaking works and
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would be conducted by a professional archaeological organisation. The precise scope of any mitigation works would be developed in consultation with THC; all works would be undertaken in accordance with a detailed Written Scheme of Investigation (WSI).
10.55 No impacts upon the setting of monuments within the study areas are identified. No mitigation measures are, therefore, recommended. RESIDUAL EFFECTS
10.56 The completion of a programme of archaeological mitigation works as set out above would minimise the loss of the archaeological resource that could occur as a result of the construction of the proposed development. No significant residual effects are anticipated in relation to direct and indirect impacts on cultural heritage assets from the construction of the proposed development. CONCLUSION
10.57 This assessment has considered data from a diverse range of sources in order to determine the presence of cultural heritage assets which may be affected by the proposed development. The potential effects on the identified assets and the potential for unknown features which could be lost have been considered, summarised in Table 10.3. There are no identified effects on known heritage assets within the Inner Study Area or Outer Study areas, including impacts upon setting. No mitigation measures or assessment of residual effects are, therefore, required with regard to this. There is potential for direct impacts upon unknown heritage assets. An archaeological watching brief is suggested in order to identify and record such remains.
Table 10-3 Summary of Effects
Predicted Effects Significance Proposed Residual Effects Mitigation
Construction
Direct effect on known None N/A N/A heritage assets within site
Operation
Indirect effect on setting of Neutral N/A N/A Glensanda Castle (SLR No. 10; SM4358)
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REFERENCES
Beaton E. Scotlands Traditional Houses: from Cottages to Tower-Houses, Edinburgh
Blaeu J. 1654 Theatrum Orbis Terrarum Sive Atlas Novus, Volume V, Amsterdam
Roy W. 1747 - 55 Military Map of Scotland
OS 1875 1:10,560 Argyllshire, Sheet 56
Scottish National Heritage 1998 No. 97 Lochaber: Landscape Character Assessment, Battleby.
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APPENDIX 10/1
CONTENTS
METHODOLOGY ...... 1 Study Areas ...... 1 Effects Address in Full ...... 1 Field Survey...... 1 Assessing Significance ...... 2 Significance of Effect...... 5 Residual Effects ...... 5 Statement of Significance ...... 5
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METHODOLOGY
Study Areas
1.1 The assessment includes a consideration of all known designated and non-designated cultural heritage assets within the application site boundary and an area of 2km beyond the site boundary. This forms the Inner Study Area as shown on Drawing FL 10.1. The recorded historic environment within the Inner Study Area (Drawing FL 10.1) is analysed to inform a predictive model of the probability for potential buried archaeological remains to exist, but not be previously identified, which might be directly affected by construction within the Site boundary.
1.2 All nationally important heritage assets are considered for operational impacts upon their setting within an Outer Study Area. This extends from the application site boundary to 3km (Drawing Figure 10.2). For non-designated assets, only those assets in which long distance views towards the proposed development may contribute to our understanding of the sites are included in the assessment.
1.3 The assessment for impacts upon setting takes into account the distance of the heritage asset from the development, as proximity is likely to result in greater potential impact on their settings than for assets further away from the site. It also takes into account particular sensitivity to long- distance visual impact, notably where long distance views form part of the assets design.
Effects Address in Full
1.4 The following effects have been assessed:
direct effects on all heritage assets within the application site; and effects on the setting of designated heritage assets of regional and national importance within the study areas.
Field Survey
1.5 A visual inspection by means of a walkover survey was made on the 7th of June 2017. The aim of the walkover of the application site was to verify the presence and condition of known sites and to identify any previously unrecorded sites or features. Conditions were fair.
1.6 The positions of heritage assets were recorded using a hand held GPS accurate to approximately +/- 10 metres. The condition of heritage assets was recorded in a field note-book and by digital photography.
1.7 A site visit to assets in the Outer Study Area was undertaken to assess the character and heritage significance of the settings of heritage assets that were indicated by the ZTV to have theoretical views of the proposed development and to assess the effects of the proposed development on those settings. The site visits focussed on those heritage assets most likely to receive effects on their setting. A number of factors were considered for the visited heritage assets, including:
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APPENDIX 10/1
location and orientation of the heritage asset; obvious views or vistas; additional screening through small scale topographic variation and vegetation; and integrity of the setting.
Assessing Significance
Introduction
1.8 Assessment of effects on cultural heritage assets took cognisance of the guidance and best practice listed in Chapter 10.
1.9 The assessment identifies impacts and effects as direct or indirect. Direct impacts are those which physically alter an asset; indirect impacts are those which affect the heritage significance of an asset by causing change within its setting. As described below, assessment was undertaken separately for direct effects and indirect effects. The magnitudes of impacts were assessed according to scale of impact, from high impact to negligible. An assessment of the heritage significance of each heritage asset was made on a scale of 'negligible' to 'highest', using professional judgement.
1.10 The significance of effect has been assessed by taking into account the heritage significance of assets, including the contribution made by their setting, and the predicted magnitude of impact. Significance of effect has been graded on a scale from major to negligible.
1.11 Direct effects on the heritage significance of assets have been assessed on the basis of a combination of the heritage significance of the affected asset where known, the probability of further assets being located within the affected areas and their likely significance, and the magnitude of impact on those assets to be caused by the implementation of the proposed development.
1.12 Indirect effects on the heritage significance of assets have been identified with reference to guidance from Historic Environment Scotland (HES 2016a). Assessment has been carried out in the following stages:
initial consideration of intervisibility and other factors leading to identification of potentially affected assets; assessment of the heritage significance of potentially-affected assets; assessment of the contribution of setting to heritage significance of those assets; assessment of the magnitude of impact of the proposed scheme due to causing change within the setting of the assets; and prediction of the significance of the effect.
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Heritage Significance of Heritage Assets
1.13 The heritage significance of a heritage asset is a measure of value of a heritage asset based on its inherent qualities, including intrinsic, contextual and associative characteristics, such as its age, state of preservation and level of supporting knowledge. These characteristics are independent of differing potential impacts on the heritage assets.
1.14 The assessment of heritage significance of heritage assets takes account of the relative weight which statute and policy attach to them, principally as published Historic Environment Scotland Policy Statement (2016b). Table A10/1/1 summarises the relative ranking of heritage assets and the relationship of heritage significance to statutory designations.
Table A10/1/1 - Heritage Significance of Heritage Assets
Heritage Significance Column B
Highest Sites of national of international importance, including: World Heritage Sites; Scheduled Monuments; Category A Listed buildings; Gardens and Designed Landscapes included on the Inventory; Designated Battlefields; and Non-designated assets of equivalent significance.
High Sites of regional importance, including: Category B listed buildings; Conservation Areas; and Non-designated heritage assets of regional importance.
Medium Sites of local importance: Category C listed buildings; and Non-designated heritage assets of local importance.
Low Sites are of minor importance or with little remaining to justify higher importance.
Negligible Negligible or no heritage importance.
Unknown Further information is required to assess the importance of these sites.
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1.15 Following the assessment of heritage value, the settings of groups of assets and important individual examples are defined and assessed.
1.16 The setting of each heritage asset or heritage asset group is described, considering aspects such as how much change to the historic setting has occurred, topography, land-use and intervisibility to other contemporaneous and related heritage assets. All these aspects are considered in relation to how they affect the understanding and appreciation of the heritage asset.
1.17 On this basis the aspects of that setting which contribute to the heritage significance of each heritage asset or heritage asset group are identified.
Magnitude
1.18 Determining the magnitude of any likely impacts requires an assessment against the nature of activities proposed during the construction and operation of the proposed development.
1.19 The changes could potentially include direct change (e.g. ground disturbance), and indirect change (the latter could include visible change and traffic movements). The scale and mass of the proposed development would form part of this potential change.
Table A10/1/2 - Magnitude of Impacts on Heritage Assets
Magnitude of Definition impact
Neutral / The development would not affect, or would have harmful and enhancing None effects of equal magnitude, on the heritage significance of the affected asset or the ability to appreciate it
Negligible The development would erode to a negligible extent the heritage significance adverse of the affected asset or the ability to appreciate it
Very low The development would erode to a very minor extent the heritage adverse significance of the affected asset or the ability to appreciate it
Low adverse The development would erode to a minor extent the heritage significance of the affected asset or the ability to appreciate it
Medium The development would erode to a clearly discernible extent the heritage adverse significance of the affected asset or the ability to appreciate it
High adverse The development would severely erode the heritage significance of the affected asset or the ability to appreciate it
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Significance of Effect
1.20 Significance of effect is determined with respect to the heritage significance and contribution of setting of the heritage assets and the predicted magnitude of impact. Indirect effects are principally concerned with effects from development within the setting of heritage assets. The range of significance of effect is shown in Table A10/1/3.
Table A10/1/3 - Significance of Effect
Magnitude of Heritage Significance impact Highest High Medium Low Neutral / nil Neutral / nil Neutral / nil Neutral / nil Neutral / nil
Negligible Negligible Negligible Negligible Negligible adverse
Very low Slight Very slight Negligible Negligible adverse Slight Very slight Very slight Low adverse Moderate
Medium Substantial Moderate Slight Very slight adverse
High adverse Substantial Substantial Moderate Slight
Residual Effects
1.21 A statement of residual effects, following consideration of any further specific mitigation measures where identified, is then provided for each asset identified.
Statement of Significance
1.22 The cultural heritage assessment concludes with a Statement of Significance associated with the proposed development.
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APPENDIX 10/2
Table 10/2/1: Site Gazetteer
SLR THC HER NMRS Name Type Period Easting Northing No. 1 MHG547 NM74NE 3 Shieling, Lubluarch Shieling Post Medieval 178604 749848 2 MHG22127 NM84NW 3 Glensanda Farm Farmstead Undated 182110 746800 3 MHG22153 NM84NW 3 Glensanda Farmhouse Farmhouse 18th Century 182240 746810 4 MHG35669 NM84NW 4 Glensanda Farmstead Post Medieval? 182100 746800 5 MHG35670 NM84NW 5 Balladh Tigh An Eascairaid Building Undated 183900 748630 6 MHG35646 NM84NW 6 Allt A' Camas Chronaig Shieling Hut Undated 180900 745500 7 MHG35647 NM84NW 7 Camas Chronaig Farmstead Undated 181400 745500 8 MHG36561 NM84NW 8 Glensanda Quarry Quarry Modern 182750 747280 9 MHG316 NM84NW 1 Tower House, Glensanda Castle Tower House Medieval 182383 746869 10 MHG286 NM84NW 2 Township, Airigh Shamhraidh Township Post Medieval 184157 749404 11 MHG22128 Bothy, Glensanda Farm Bothy Post Medieval? 182120 746880 12 MHG32049 Uamh A' Choilich Cave Early Medieval 183338 747764 13 NM84NW 9 Glensanda-Meall na h-Easaiche Quarry Modern 181480 749470
Glensanda Quarry – EIA Report P a g e A10-2| 1 SLR Consulting Limited
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LEGEND
APPLICATION SITE BOUNDARY
0 5km OFFSET BOUNDARY 0 0 4 5 7 ¯ SPECIAL AREA OF CONSERVATION
SSSI
MARINE PROTECTION AREA 0 0
0 MARINE CONSULTATION AREA 2 5 7
SEMI-NATURAL ANCIENT WOODLAND INVENTORY
ANCIENT WOODLAND INVENTORY
SCHEDULED ANCIENT MONUMENT 0 0 0
0 LISTED BUILDING (CATEGORY) 5 7
$+ B
SM5679 Airigh Shamhraidh,house, enclosures and field system $+ C 0 0 0 8 4 7
SM4347 Loch Tearnait,crannog
SM4358 Glensanda Castle SM4199
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LEGEND
SITE BOUNDARY
¯ 3KM OFFSET BOUNDARY 0 0
0 SCHEDULED MONUMENT 2 5 7 LISTED BUILDING (GRADE)
$+ B
$+ C
ZONE OF THEORETICAL VISIBILITY
DRAFT HYDRO SILT PIPE SCHEME 0 0 0 0
5 SM5679: Airigh Shamhraidh, 7 house,enclosures and field system
LAGOONS AND HAUL ROAD 0 0 0 8 4 7
SM4347: Loch Tearnait, crannog
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0 Castle 4 FL10.2 0 7 . 5
7 Scale Date 2 1:35,000 @ OCTOBER 2017 0 SM4192: Lismore A3 0 SM286: St Moluag's Contains Ordnance Survey data © Crown copyright and database rights (2015) 0100031673 Expires 19/06/2018 © This drawing and its content are the copyright of SLR Consulting Ltd and may not be reproduced or amended exceCpt abyt phrioer dwrrittaenl ,pceramisrsnion. SLR Consulting Ltd accepts no liability for any amendments made by other persons. Cathedral, Lismore 180m W of