CONSULTATION DOCUMENT

ROUTE SELECTION

NORTH ARGYLL SUBSTATION TO DALMALLY 275KV OVERHEAD LINE

REFERENCE: LT000029

The author/owner of this document This document was approved by Date of issue Name: Paul McQuillan Name: Derek Hearns 15/06/2017 Job Title: Environmental Project Manager Job Title: Lead Project Manager

CONTENTS

GLOSSARY 1

PREFACE 3

1. INTRODUCTION 4 1.1 Purpose of Document 4 1.2 Background and Project Need 4

2. CORRIDOR AND ROUTE SELECTION PROCESS 5 2.1 Introduction 5 2.2 Methodology 6

3. STAGE 1: CORRIDOR SELECTION 10 3.1 Strategic study area 10 3.2 Description of the Strategic Study Area 10 3.3 Public and Statutory Consultation 14

4. STAGE 2: ROUTE SELECTION 15 4.1 Introduction 15 4.2 Potential Route Sections 18 4.3 Comparative Analysis of Potential Routes 18 4.4 Preferred Route 25

5. THE PROPOSALS 26 5.1 Areas with unknown environment effects on the Preferred Route 27

6. CONSULTATION ON THE PROPOSALS 34 6.1 Questions for consideration by consultees 34 6.2 Visualisations and Visibility Mapping 34 6.3 Next steps 34

APPENDIX A 35

APPENDIX B 48

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document

GLOSSARY

Term Definition Alignment A centre line of an overhead line OHL, along with location of key angle structures. Amenity The natural environment, cultural heritage, landscape and visual quality. Also includes the impact of SHE Transmission’s works on communities, such as the effects of noise and disturbance from construction activities. Conductor A metallic wire strung from structure to structure, to carry electric current. Consultation The dynamic process of dialogue between individuals or groups, based on a genuine exchange of views and, normally, with the objective of influencing decisions, policies or programmes of action. Corridor A linear area which allows a continuous connection between the defined connection points. The corridor may vary in width along its length; in unconstrained areas it may be many kilometres wide. Environmental Impact A formal process set down in The Electricity Works (EIA) (Scotland) Assessment (EIA) Regulations 2000 (as amended in 2008) used to systematically identify, predict and assess the likely significant environmental impacts of a proposed project or development. Gardens and Designed The Inventory of Gardens and Designed Landscapes lists those gardens or Landscapes (GDLs) designed landscapes which are considered by a panel of experts to be of national importance. Habitat Term most accurately meaning the place in which a species lives, but also used to describe plant communities or agglomerations of plant communities. Kilovolt (kV) One thousand volts. Listed Building Building included on the list of buildings of special architectural or historic interest and afforded statutory protection under the ‘Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997’ and other planning legislation. Classified categories A – C(s). Micrositing The process of positioning individual structures to avoid localised environmental or technical constraints. Mitigation Term used to indicate avoidance, remediation or alleviation of adverse impacts. National Scenic Area A national level designation applied to those landscapes considered to be (NSA) of exceptional scenic value. Overhead line (OHL) An electric line installed above ground, usually supported by lattice steel towers or wood poles. Plantation Woodland Woodland of any age that obviously originated from planting. Riparian Woodland Natural home for plants and animals occurring in a thin strip of land bordering a stream or river. Route A linear area of approximately 1 km width (although this may be narrower/wider in specific locations in response to identified pinch points / constraints), which provides a continuous connection between defined connection points.

North Argyll substation to Dalmally 275kV Over Head Line 1 Route Selection Consultation Document

Term Definition Routeing The work undertaken which leads to the selection of a proposed alignment, capable of being taken forward into the consenting process under Section 37 of the Electricity Act 1989. Scheduled Monument A monument which has been scheduled by the Scottish Ministers as being of national importance under the terms of the ‘Ancient Monuments and Archaeological Areas Act 1979’. Semi-natural Woodland Woodland that does not obviously originate from planting. The distribution of species will generally reflect the variations in the site and the soil. Planted trees must account for less than 30% of the canopy composition Sites of Special Areas of national importance. The aim of the SSSI network is to maintain Scientific Interest an adequate representation of all natural and semi-natural habitats and (SSSI) native species across Britain. Span The section of overhead line between two structures. Special Area of An area designated under the EC Habitats Directive to ensure that rare, Conservation (SAC) endangered or vulnerable habitats or species of community interest are either maintained at or restored to a favourable conservation status. Special Landscape Landscapes designated by The Highland Council which are considered to Area (SLA) be of regional/local importance for their scenic qualities. Special Protection Area An area designated under the Wild Birds Directive (Directive74/409/EEC) (SPA) to protect important bird habitats. Implemented under the Wildlife and Countryside Act 1981. Stakeholders Organisations and individuals who can affect or are affected by SHE Transmission works. Study Area The area within which the corridor, route and alignment study takes place. Terminal Structure A structure (tower or pole) required where the line terminates either at a substation or at the beginning and end of an underground cable section. The National Grid The electricity transmission network in the Great Britain. Volts The international unit of electric potential and electromotive force. Wayleave A voluntary agreement entered into between a landowner upon whose land an overhead line is to be constructed and SHE Transmission Wild Land Area (WLA) Those areas comprising the greatest and most extensive areas of wild characteristics within Scotland.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 2

PREFACE

This Consultation Document has been prepared by WSP on behalf of Scottish Hydro Electric Transmission plc (SHE Transmission plc) to seek comments from all interested parties on the Preferred Route identified for the proposed North Argyll substation to Dalmally 275kV Over Head Line.

Public consultation events detailing the proposals described in this document will be held in Autumn 2017; these events will be advertised publicly via traditional printed media, social media and through postal notification.

Comments on this document should be sent to:

Neil Anderson, by email at [email protected], or by post to

Inveralmond House, 200 Dunkeld Road, Perth, PH1 3AQ.

SHE Transmission request that all consultation responses on this Route Selection Consultation Document are received by 21st July 2017.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 3

1. INTRODUCTION

1.1 Purpose of Document This document has been prepared by WSP on behalf of Scottish Hydro Electric Transmission plc (SHE Transmission). It summarises the environmental, engineering and economic studies that have been carried out in order to identify a preferred route for a new 275 kV overhead line (OHL) grid connection between the existing substation at Dalmally and the proposed North Argyll Substation near Ardbrecknish, in Argyll.

This document sets out the approach that was undertaken to identify an initial corridor, develop route options within that area, and the comparative analysis of the route options that was undertaken in order to identify a Preferred Route.

After consideration of the environmental constraints and following SHE Transmission’s overhead line routeing approach (see below), six route options were identified which, as far as possible, avoided or minimised potential environmental issues. These were then compared and analysed in relation to environmental, engineering and cost factors. This comparative analysis resulted in the identification of a preferred route; i.e. one that on balance had an optimum balance of environmental, engineering and cost factors. However, as there are some environmental sensitivities in this area, there are issues that remain within the Preferred Route. The purpose of this document is therefore to inform consultees of the process undertaken thus far and its results and to seek comments, particularly on the areas of environmental concern that have been identified on the Preferred Route. These comments will be used to inform the finalisation of what will then become the Proposed Route. An OHL Alignment will then be identified within the Proposed Route, which will subject to an iterative design process, the outcome of which will be a Preferred Alignment. The Preferred Alignment will be included in a further Consultation Document.

1.2 Background and Project Need SHE Transmission owns and maintains the electricity transmission network across Scotland, and holds a license under the Electricity Act 1989 to ‘develop and maintain an efficient, co-ordinated and economical electricity transmission system in its licensed area’.

The existing transmission network serving eastern Argyll was originally designed to serve a rural area with low demand for electricity. Since the introduction of the Scottish Government’s renewable energy targets in 2011, requests for grid connections have increased significantly from renewable energy developers, requesting new connections to the electricity network throughout Scotland. This is placing a significant demand on the transmission system. Specific to this project, connections have been requested for further renewable generation throughout Argyll, which exceeds the capacity of the existing transmission system in the area.

As part of a wider scope of works to upgrade the transmission network in eastern Argyll to accommodate this increase in renewable energy generation, it is proposed to develop a new 275 kilovolt (kV) grid connection linking the existing substation at Dalmally with the proposed new 275/ 132 kV North Argyll Substation near Ardbrecknish. It is anticipated that the new overhead line would be supported by lattice steel (L8) towers with a standard height of 46 m; separated by approximately 300 m to 350 m.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 4

2. CORRIDOR AND ROUTE SELECTION PROCESS

2.1 Introduction As stated in paragraph 1.2.1, SHE Transmission is as the license holder is required by the Electricity Act (1989) to ‘develop and maintain an efficient, co-ordinated and economical electricity transmission system in its licensed area’.

Schedule 9 of the Act states that the license holder: (a) shall have regard to the desirability of preserving natural beauty, of conserving flora, fauna and geological or physiographical features of special interest and of protecting sites, buildings and objects of architectural, historic or archaeological interest; and (b) shall do what he reasonably can to mitigate any effect which the proposals would have on the natural beauty of the countryside or on any such flora, fauna, features, sites, buildings or objects. SHE Transmission’s approach to routeing of overhead lines starts with the identification of environmental constraints within the corridor within which the OHL could potentially be located. Once those environmental constraints have been identified, route options are designed following the SHE Transmission approach, avoiding where possible physical, environmental and amenity constraints and a comparative environmental analysis is undertaken. In parallel, the engineering constraints are considered and cost estimates are produced for each feasible route option.

Identifying a Preferred Route is a balance of technical (engineering) considerations, environmental considerations and cost considerations. Each set is defined by SHE Transmission as follows:  Technical Considerations: These refer, as a minimum, to the capacity and voltage of the OHL which will dictate the choice of the conductor and tower suite, which in turn may inform foundation requirements, span lengths, angle points and constructability requirements. They may also include other considerations relevant to the construction of the OHL such as intermediate cable sections or tappings to generator connections for example. In some cases, the implications for other infrastructure, such as the need for outages or to remove existing infrastructure to accommodate a new OHL infrastructure may be relevant.  Environmental Considerations: Environmental considerations refer to the physical, natural and built environmental features referred to in Schedule 9 of the Electricity Act 1989 and to features of amenity as referred to in the Holford Rules. They include towns, villages and smaller scattered settlements, individual properties and the amenity associated with them; international, national and local designations which protect physical, natural or built environment features, such as National Parks and National Scenic Areas, Special Protection Areas, Special Areas of Conservation, Sites of Scientific Interest (SSSI), Scheduled Ancient Monuments, Gardens and Designed Landscapes, and Listed Buildings; areas of natural habitat which support protected species or functions; they also include physical infrastructure such as roads, railways, pipeline, existing transmission lines, windfarms and other commercial land uses.  Cost Considerations: Cost is a function of the length of new infrastructure and the quantum of assets required (conductors, support structures) the extent of construction and access works to address aspects such as altitude, slope and ground conditions and the nature and extent of operational maintenance required. SHE Transmission’s approach to overhead line route selection incorporates The Holford Rules: Guidelines for the Routing of New High Voltage Overhead Transmission Lines with NGC 1992 and SHETL 2003 Notes’. The Holford Rules (Table 2-1) set out a hierarchical approach to routeing. They advocate avoiding areas of high amenity value, minimising changes in direction, taking advantage of topography and minimising visual interaction with other transmission infrastructure.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 5

Table 2-1 The Holford Rules Rule Explanation Rule 1 Avoid altogether, if possible, the major areas of highest amenity value, by so planning the general route of the line in the first place, even if the total mileage is somewhat increased in consequence. Rule 2 Avoid smaller areas of high amenity value, or scientific interest by deviation; provided that this can be done without using too many angle towers, i.e. the more massive structures which area used when lines change direction. Rule 3 Other things being equal, choose the most direct line, with no sharp changes of direction and thus with few angle towers. Rule 4 Choose tree and hill backgrounds in preference to sky backgrounds, wherever possible; and when the line has to cross a ridge, secure this opaque background as long as possible and cross obliquely when a dip in the ridge provides an opportunity. Where it does not, cross directly, preferable between belts of trees. Rule 5 Prefer moderately open valleys with woods where the apparent height of towers will be reduced, and views of the line will be broken by trees. Rule 6 In country which is flat and sparsely planted, keep the high voltage lines as far as possible independent of smaller lines, converging routes, distribution poles and other masts, wires and cables, so as to avoid a concatenation or ‘wirescape’. Rule 7 Approach urban areas through industrial zones, where they exist; and when pleasant residential and recreational land intervenes between the approach line and the substation, go carefully into the comparative costs of undergrounding, for lines other than those of the highest voltage.

In addition to these requirements are the legal provisions that apply to proposals for electricity infrastructure projects in relation to consenting and environmental impact assessment. These can include, as mentioned previously, The Electricity Act 1989; The Town and Country Planning (Scotland) Act 1997; The Electricity Works (Environmental Impact Assessment) (Scotland) Regulations 2017; and The Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2017.

The routeing process seeks to balance all these considerations, to select a route alignment that is economically viable, technically feasible and is capable of being granted consent by the Scottish Ministers by virtue of causing least impact on important resources or features of the environment and least disturbance to those living in it, working in it, visiting it or using it for recreational purposes

This chapter describes how these considerations have been taken into account in the route selection process and describes the preferred route.

2.2 Methodology There are four principal stages to the SHE Transmission routeing process:  Stage 0: Routeing Strategy Development;  Stage 1: Corridor Selection;  Stage 2: Route Selection;  Stage 3: Alignment Selection. These stages are illustrated in more detail in Figure 2.2 (overleaf). This Consultation Document has been prepared to seek opinion on Stage 2 Route Selection.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 6

Figure 2.2: The SHE Transmission Approach to OHL Routeing and Key Outputs This project is currently at Stage 2: Route Selection. Stages 0 – 1 having been completed. The process within Stage 2 is shown in more detail in Figure 2.3 (overleaf).

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 7

Figure 2.3: The SHE Transmission Stage 2: Route Selection Approach The preparation of this Consultation Document reports on the stages through to “Selection of Preferred Route”.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 8

A number of internal reports have been completed regarding different aspects of the routeing work to date:

 Dalmally Substation to North Argyll Substation, 275kV Transmission Line, Route Options Appraisal (Ash, 2016)  LT29 / LT39 Observations on Routeing Options (WSP, 2016)  LT29 North Argyll 275/132kV Substation and OHL Reinforcement. LT29 North Argyll to Dalmally Route Selection Study Report (SHE Transmission, 2016)

The Route Options Appraisal report (Ash, 2016) encompassed Stage 1: Corridor Selection and Stage 2: Routeing, resulting in the identification of a preferred route, from an environmental perspective only.

The LT29 / LT39 Observations on Routeing Options technical note (WSP, 2016) addressed two areas that were identified in the Ash (2016) report that required further consideration in relation to potential impacts on landscape, visual, and ornithology receptors in particular.

The Route Selection Study Report (SHE Transmission, 2016) reported on the environmental, engineering and economic factors that were considered by SHE Transmission in defining the preferred route. This Consultation Document presents a summary of these reports.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 9

3. STAGE 1: CORRIDOR SELECTION

This chapter provides a summary of the activities undertaken up to Stage 1.

3.1 Strategic study area At the start of the process, a Strategic Study Area was identified within which it would be possible to locate potential routes that would be capable of meeting the requirements of the project.

The Strategic Study Area was defined “by taking a straight line between the existing Dalmally substation and the centre point of the preferred North Argyll Substation Targeted Search Area, and offsetting this by 5 km. This allows a range of route options and tie-in locations to be analysed”.

3.2 Description of the Strategic Study Area The Strategic Study Area is illustrated in Figure 3.1 (overleaf). The environmental baseline of the Strategic Study Area is summarised in Table 3-1.

Within this Strategic Study Area, baseline studies and walkover site visits were undertaken in April and November 2015 (by Ash on behalf of SHE Transmission) to identify the potential constraints to routeing. The following activities were undertaken as part of the baseline studies:  Identification of environmental designated sites and other constraints, utilising GIS datasets available via SNHi Site Link;  Identification of archaeological designations and other recorded sites, utilising GIS datasets available via Historic Scotland Data Services and the West of Scotland Archaeology Service (WoSAS);  Review of policy in the Argyll and Bute Local Development Plan 2015 to identify further environmental constraints and opportunities, such as regional level designations or other locations important to the public;  Review of the ‘Landscape Assessment of Argyll and the Firth of Clyde’ (SNH Natural Heritage Review No.78) from the SNH suite of Landscape Character Assessment documents (ERM, 1996);  Review of Ordnance Survey (OS) mapping (1:50,000 and 1:25,000 and online GIS data sources from OS Open Data) and aerial photography (where available) to identify other potential constraints such as settlement, properties, walking routes, cycling routes etc;  Extrapolation of OS Vectormap GIS data to identify further environmental constraints including locations of watercourses and waterbodies and roads classifications;  Review of other local information through online and published media such as tourism sites and walking routes; and  Review of other developments within the planning system (consented or awaiting determination) which may have impacted upon route options (e.g. wind farm developments and new housing developments)

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 10

Figure 3.1: Environmental constraints within the Strategic Study Area

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 11

Table 3-1 Summary of environmental baseline in Strategic Study Area Environmental Summary of Baseline Topic

Landscape  No national landscape designations (National Parks or National Scenic Areas;  All route options lie entirely within the North Argyll Area of Panoramic Quality (APQ) - regional landscape designation in the Local Development Plan. The landscape of Strath of Orchy is considered sensitive to OHL development and is an important contributory feature of the APQ;  The Study Area includes parts of two Wild Land Areas (WLAs) defined by Scottish Natural Heritage: Ben Lui WLA to the east and Loch Etive Mountains WLA to the north. None of the route options pass through WLAs.  A varying landscape of craggy upland and mountains cut through by deep glens and lochs, mostly sensitive to the introduction of a new OHL. It is a deeply contrasting landscape with wide exposure on the high tops and rocky upland moorland and intimate rural, farming and settled landscapes in the glens and around the lochs. Forest and woodland are prominent defining features of the lower valleys, with large scale commercial plantation on lower slopes and glen sides and attractive and intimate native and policy woodlands along the settled shores of Loch Awe and around Inveraray. Visual  Settlement is largely limited to the loch shores and main glens. Dalmally, at the northeast end of Loch Awe, and Lochawe, on the northern side of the loch, comprise the greatest concentrations of residential development. There are further scattered properties around Cladich to the south of the loch and along the shore to Ardbrecknish.  The roads within the study area (A85, A819, B840 and B8077) generally follow the main valleys and the shoreline of Loch Awe and are all used by tourists.  Valued views in the Study Area include: across open water from many vantage points along the shore of Loch Awe such as Kilchurn Castle and the lochside roads; elevated monuments on hill tops such as the Duncan Ban MacIntyre Memorial south of Dalmally, the Duncan McLaren monument near the B8077 and the Neil Munro monument near to the A819 and; elevated views from the mountain summits of Stob Diamh and Ben a’ Bhùiridh in the north of the Study Area Ecology and A large proportion of the Strategic Study Area is of low ecological value, as it is Ornithology currently used for commercial forestry or agricultural purposes. The designations present in the Strategic Study Area are:  Loch Etive Woods Special Area of Conservation (SAC) for priority woodland;  Glen Etive and Glen Fyne Special Protection Area (SPA) for Golden Eagles;  Coille Leitire Site of Special Scientific Interest (SSSI) for upland oak woodland.  Presence of Annex 1 species such as golden plover, black grouse, divers and waders, as well as raptors such as golden eagle, hen harrier, osprey, peregrine and merlin. There are a number of watercourses and areas of native and ancient woodland that would require to be crossed by route options. The marshy areas and riparian margins of the watercourses, and the woodland all have potential to support protected species (such as otter, watervole, red squirrel, plants and invertebrates) and sensitive priority habitat types. Areas of peat are present in the Strategic Study Area, which can support sensitive priority habitats.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 12

Environmental Summary of Baseline Topic

Land Use The Strategic Study Area includes a range of land uses including residential areas (and associated urban uses, including a shinty pitch), Dalmally golf course, commercial forestry, and agricultural land. Residential settlement is concentrated on the town of Dalmally and scattered along the shores of Loch Awe. The lower slopes and major valleys are populated by small farms with improved grazing land surrounding them. The moorland areas are predominantly used for rough grazing for cattle and sheep. The main land use that would be affected by a new overhead line is commercial forestry; as areas would be permanently removed from forestry. Other land uses would be affected temporarily during construction. The main transport links in the area are the A85, the A819, and the B840, and the West Highland Railway Line (Oban branch). Train stations are located at Dalmally, Loch Awe Hotel and the Falls of Cruachan. There are a number of tourism destinations in the area; including Loch Awe itself, the memorial to the poet Duncan Ban McIntyre above Dalmally, Kilchurn Castle, the monument to the writer and journalist Neil Munro at the head of Glen Aray, and the visitor centre at Cruachan pumped storage scheme. Geology,  Wetlands, waterbodies, watercourses, and areas of flood risk are all present Hydrology and within the Strategic Study Area. Soils  Also present is the Cruachan Reservoir Geological Conservation Review site; and areas of Class 1 peatlands (as classified by SNH). Cultural Heritage There are a number of designated cultural heritage sites within the Strategic Study Area:  26 Scheduled Monuments (SMs) consisting of crannogs, cairns, burial grounds, marked stones and buildings and structures.  One property on the Historic Scotland Inventory of Gardens and Designed Landscapes - Ardanaiseig House;  17 Listed Buildings: including 5 category A, 8 category B, and 4 category C listed buildings. In addition, there are non-designated features present which are listed on the WoSAS Historic Environment Record (HER). There is also the potential for unknown archaeology to be present. The cultural heritage designation most likely to be affected by an OHL in this area is Kiclhurn Castle SM (in relation to potential impacts upon setting).

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 13

3.3 Public and Statutory Consultation In March 2016, SHE Transmission consulted with the public and statutory consultees on a refined corridor within the Strategic Study Area; as shown in Figure 3.2 below.

Figure 3.2: The Corridor provided for Consultation, March 2016

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 14

4. STAGE 2: ROUTE SELECTION

4.1 Introduction Following the baseline studies, potential routes were laid down in accordance with SHE Transmission approach, following the Holford Rules (Table 2-1) and taking into account the physical, environmental and amenity constraints.

The potential routes identified within the Corridor form a complex interlinking network passing either side of Dalmally, then running roughly parallel to the loch shore at different positions on the hillside above the south side of Loch Awe. Given the complexity of the network of potential routes identified and the variety of environmental constraints present, the potential routes were divided into smaller sections for detailed consideration then organised into a series of route options for comparative assessment. The route options identified are shown on Figure 4.1 below, colour coded as follows:  Route 1  Route 2  Route 3  Route 4  Route 5  Route 6 All routes are 500 m in width to allow for the potential for more than one alignment option during later stages of the design process.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 15

Figure 4.1: Route Options

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 16

Figure 4.2: Route Options

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 17

4.2 Potential Route Sections Due to the differences in the potential effects and constraints across the area, the Strategic Study Area was broken down into two sections:  Section A: Dalmally Substation through Strath Orchy; and  Section B: Strath Orchy to the proposed North Argyll Substation. Due to the complex interlinking nature of the route options, each section was broken into shorter route sections for detailed consideration (see Figure 4.2)

Each topic within the environmental, technical and cost categories is considered in terms of the potential for the development to be constrained and a Red/Amber/Green (RAG) rating applied as appropriate.

The RAG rating applied to each topic was colour coded using a “red-amber-green” (RAG) notation as follows:  High potential for the development to be constrained rated RED;  Intermediate potential for the development to be constrained rated AMBER; and  Low potential for the development to be constrained rated GREEN. A summary of these assessments is provided in Appendix A.

4.3 Comparative Analysis of Potential Routes The route sections were then organised into a series of complete routes from Dalmally substation to the search area for the proposed North Argyll substation to allow for comparative analysis. The Routes Options consist of the following sections:  Route 1 – A1, B1a and B1b  Route 2 – A1, B1a, B1d and B2c  Route 3 – A2, B2a (west), B2b and B2c  Route 4 – A4, B2a (east), B2b and B2c  Route 5 – A3, B2a (east), B2b and B2c  Route 6 – A2, B2a (west), B2d and B1b A comparative environmental appraisal was undertaken by Ash to identify an environmentally preferred route. A comparative technical and economic appraisal was then undertaken by SHE Transmission in accordance with their statutory duty to provide an economic and efficient network.

The tables below are a visual summary of the environmental and technical appraisals of the full Route Options. For each route, the RAG rating is given for each section.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 18

4.3.1 Route 1 Route 1 heads almost due south from Dalmally substation crossing the River Orchy by the golf clubhouse then climbing the valley side to pass west of the Duncan Ban Macintyre memorial. From there it follows the line of the old military road down to within about a kilometre of Loch Awe side then runs roughly parallel to the A819, between about 500 m and 1500m from the loch shore, before turning south, south of Cladich, to approach the North Argyll substation search area.

Route 1 would have the potential to form a prominent feature, particularly around Achlian and on the ascent from Strath Orchy, and it could adversely affect the setting and backdrop to the north-eastern end of Loch Awe and Strath of Orchy, landscapes that are important contributing factors to the APQ. It would likely have significant visual effects crossing Strath of Orchy and at the Duncan Ban Macintyre memorial and the central section would be clearly visible from the north side of Loch Awe, although back-clothed. Further south, it would likely be closely visible from the A819 and houses around Achlian. In common with all route options it would be visible where it crosses the A819 and it would have potentially significant effects on a number of isolated properties.

This route would likely entail the loss of native ancient woodland over about a 500 m length and of planted ancient woodland site over about a kilometre. It crosses the edge of the SPA with the potential for effects on golden eagle.

There are no direct significant cultural heritage effects anticipated but potential effects on the setting of Kilchurn Castle SM and particularly the B listed Duncan Ban McIntyre memorial have been identified. The route crosses the golf course at Dalmally, potentially requiring a tower on the golf course itself, and it crosses a braided section of the River Orchy. There are areas of deep peat on the route but it is anticipated that these would be avoidable in detailed alignment.

Table 4-1 Environmental RAG ratings for Route 1 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A1

1 B1a

B1b

The summarised RAG rating of technical findings for Route 1 is presented in the following table. The complete technical findings are provided in Appendix A. Route 1 is the lowest cost option and is therefore noted as having a cost index of 100%.

Table 4-2 Technical RAG ratings for Route 1

ditions

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLength Crossings HV GroundCon Terrain 1

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 19

4.3.2 Route 2 Route 2 follows the line of Route 1 except in the vicinity of Cladich where it passes to the southeast of Creag Bracha, further from the lochside. The main difference in environmental effect would be reduced visibility of this section of the route from the northwest side of Loch Awe.

Table 4-3 Environmental RAG ratings for Route 2 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A1

B1a 2 B1d

B2c

The summarised RAG rating of technical findings for Route 2 is presented in the following table. The complete technical findings are provided in Appendix A. Route 2 has a cost index of 110% (10% more expensive than Route 1).

Table 4-4 Technical RAG ratings for Route 2

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLength Crossings HV GroundConditions Terrain 2

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 20

4.3.3 Route 3 Route 3 heads southeast from Dalmally substation, parallel to the B8077 along the edge of the Orchy floodplain, crossing the River Orchy just east of the golf course then climbing the valley side to pass east of the Duncan Ban Macintyre memorial. From there runs roughly parallel to the A819, in the order of 2 km from the loch shore, before dropping down to cross the A819 south of Cladich before turning south to approach the North Argyll substation search area.

Route 3 would likely have significant local landscape effects in Strath of Orchy but overall, situated further from Loch Awe, it passes through areas that contribute less strongly to the value of the APQ and would likely have less effect on the more valued landscapes than Routes 1 or 2.

It would likely have significant visual effects crossing Strath of Orchy and at the Duncan Ban Macintyre memorial (although not affecting the loch views). It would be visible from Lochawe but further and smaller in the view than Routes 1 and 2. It is unlikely to be noticeable from the A819 except where it crosses the road south of Cladich and it would have potentially significant effects on a number of isolated properties. This route would likely entail the loss of native ancient woodland in notable areas at Millside and Cladich River. It crosses the spur of the SPA above Achlian (about 750 m length, as does Route 4 and Route 5) with the potential for effects on golden eagle There are no direct significant cultural heritage effects anticipated but potential effects on three SMs and the B listed Duncan Ban McIntyre memorial have been identified.

There are areas of deep peat on the route, with one area in Strath of Orchy unlikely to be avoidable because of other constraints.

Table 4-5 Environmental RAG ratings for Route 3 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A2

B2a 3 B2b

B2c

The summarised RAG rating of technical findings for Route 3 is presented in the following table. The complete technical findings are provided in Appendix A. Route 3 has a cost index of 130% (30% more expensive than Route 1).

Table 4-6 Technical RAG ratings for Route 3

th

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLeng Crossings HV GroundConditions Terrain 3

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 21

4.3.4 Route 4 Route 4 starts from Dalmally substation on the line of Route 1, then runs up the floodplain on the north side of the river below Stronmilchan to cross the River Orchy immediately north of Dalmally. It continues up the valley to south of Glenview then bends sharply to climb the valley side obliquely and passing east of the Duncan Ban Macintyre memorial. From there it follows the same line as Route 3.

Route 4 would likely have greater local landscape effects in Strath of Orchy than the alternatives because it runs up the valley rather than crossing it directly but the area it passes through south of Dalmally contributes less strongly to the value of the APQ and it would likely have less effect on the more valued landscapes than Routes 1 or 2.

Similarly, because it runs up the valley, it would likely have more significant visual effects in Strath of Orchy. As Route 3, it would affect the Duncan Ban Macintyre memorial (although not the loch views). It would be visible from Lochawe but further and smaller in the view than Routes 1 and 2. It is unlikely to be noticeable from the A819 except where it crosses the road south of Cladich and it would have potentially significant effects on a number of isolated properties.

This route would likely entail the loss of native ancient woodland in notable areas at Millside and Cladich River. It crosses the spur of the SPA above Achlian (about 750 m length, as does Route 3 and Route 5.) with the potential for effects on golden eagle.

There are no direct significant cultural heritage effects anticipated but potential effects on three SMs and the B listed Duncan Ban McIntyre memorial have been identified.

Table 4-7 Environmental RAG ratings for Route 4 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A4

B2a 4 B2b

B2c

The summarised RAG rating of technical findings for Route 4 is presented in the following table. The complete technical findings are provided in Appendix A. Route 4 has a cost index of 140% (40% more expensive than Route 1).

Table 4-8 Technical RAG ratings for Route 4

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLength Crossings HV GroundConditions Terrain 4

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 22

4.3.5 Route 5 Route 5 heads east south east from Dalmally substation parallel to the existing 275 kV OHL across the flanks of Creag Mhor above Stronmilchan, dropping down to cross the River Orchy east of Glenview. It then bends sharply to climb the valley side obliquely passing east of the Duncan Ban Macintyre memorial and following the line of Route 4 to the search area for the North Argyll substation.

At the north end, Route 5 would likely have a more extensive landscape effect and more effect on the APQ than the alternatives because of the prominence of a line parallel to the existing, high on the steep hill slopes. The construction access would also likely have significant effects, difficult to fully restore.

In terms of visual effect, it would be to the rear of residential property views at Stronmilchan, but likely prominent from parts of Dalmally. More importantly perhaps it would likely be prominent and significantly detracting on the skyline in wider views from the surrounding area including Kilchurn Castle and the A85. As Routes 3 and 4, it would affect the Duncan Ban Macintyre memorial (although not the loch views). It would be visible from Lochawe but further and smaller in the view than Routes 1 and 2. It is unlikely to be noticeable from the A819 except where it crosses the road south of Cladich and it would have potentially significant effects on a number of isolated properties.

This route would likely entail the loss of native ancient woodland in notable areas at Millside and Cladich River. It crosses the spur of the SPA above Achlian (about 750 m length, as does Route 3 and Route 4) with the potential for effects on golden eagle.

There are no direct significant cultural heritage effects anticipated but potential effects on three SMs and the B listed Duncan Ban McIntyre memorial have been identified.

Table 4-9 Environmental RAG ratings for Route 5 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A3

B2a 5 B2b

B2c

The summarised RAG rating of technical findings for Route 5 is presented in the following table. The complete technical findings are provided in Appendix A. Route 5 has a cost index of 140% (40% more expensive than Route 1).

Table 4-10 Technical RAG ratings for Route 5

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLength Crossings HV GroundConditions Terrain 5

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 23

4.3.6 Route 6 Route 6 runs from Dalmally substation across Strathy of Orchy and past the Duncan Ban Macintyre memorial to Teatle Water on the line of Route 3. It then runs southwest, more closely parallel to the loch shore to meet the line of Route 1 on Creag Dubh, south of Achlian. From there it follows Route 1 roughly parallel to the A819 between about 500 and 1500m from the loch shore, before turning south, south of Cladich, to the search area for the North Argyll substation.

Route 3 would likely have significant local landscape effects in Strath of Orchy but overall, situated further from Loch Awe in the section north of Achlian, it passes through areas that contribute less strongly to the value of the APQ and as such would likely have less effect on the more valued landscapes than Routes 1 or 2. It would likely have significant visual effects crossing Strath of Orchy and at the Duncan Ban Macintyre memorial (although not affecting the loch views) and it would be visible from Lochawe but further and smaller in the view than Routes 1 and 2. It is unlikely to be noticeable from the A819 except where it crosses the road south of Cladich and it would have potentially significant effects on a number of isolated properties.

This route would likely entail the loss of native ancient woodland in notable areas at Millside and Cladich River. It crosses the edge of the SPA with the potential for effects on golden eagle. There are no direct significant cultural heritage effects anticipated but potential effects on two SMs and the B listed Duncan Ban McIntyre memorial have been identified.

There are areas of deep peat on the route, with one area in Strath of Orchy unlikely to be avoidable because of other constraints.

Table 4-11 Environmental RAG ratings for Route 6 Cultural Hydrology Route/ Section Landscape Visual Ecology Ornithology Land use Heritage Geology A2 B2a 6 B2d B1b

The summarised RAG rating of technical findings for Route 6 is presented in the following table. The complete technical findings are provided in Appendix A. Route 6 has a cost index of 120% (20% more expensive than Route 1).

Table 4-12 Technical RAG ratings for Route 6

Route

RoadCrossings Elevation Numberof Deviations Residential Proximity AccessRoutes RouteLength Crossings HV GroundConditions Terrain 6

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 24

4.4 Preferred Route The key environmental issues identified through the routeing process (that is, those that have most strongly driven the route selection) are: potential landscape effects; effects on visual amenity; and ornithological effects.

In Section A, all Routes have a moderate level of ornithological risk, therefore landscape and visual were the main driving factors. All of the route options are considered of a high risk for landscape and visual effects due to the high value and sensitivity of this valley landscape to the scale of overhead line development proposed, and the proximity of sensitive visual receptors. Section A2, followed by Routes 3 and 6 was found to have the least high risk and thus to be preferred in this area. In Section B there are fewer risks of significant visual effects (due to there being fewer sensitive receptors) therefore potential landscape and ornithological effects were the main drivers. In this area the routes further from Loch Awe – Routes 3, 4, and 5 would have a lower risk of effect on the landscape as they pass through areas that contribute less strongly to the value of the APQ and as such would likely have less effect on the more valued landscapes than the routes closer to the loch. They would also have lesser visual effect, being less visible from the loch and the lochside and from the north side of the loch including Lochawe. However, these three routes (Routes 3, 4 and 5) cross the spur of the SPA that comes down towards Loch Awe between the blocks of conifer plantation and would thus have a high risk of significant ornithological effect. Route 6 is an effective compromise, following a line with generally lower landscape effects in the northern half of Section B and reasonably set back from the loch in the southern half, and it only touches the very tip of the spur of the SPA similar to Routes 1 and 2.

The engineering appraisal ranked the routes based on how they satisfy key technical criteria. Route 1 was identified as preferred with Route 2 and Route 6 jointly in second place. The cost analysis showed Route 1 as the most cost-effective, with Route 2 10% more expensive and Route 6 20% more expensive than Route 1.

The environmental disadvantages of Route 1 – particularly the degree of intrusion into the landscape of the northern section of Loch Awe - were seen to clearly outweigh the technical and cost advantages.

A key technical issue with Route 6, which is also an environmental issue, was the area of suspected deep peat in Section A2, the crossing of Strath of Orchy. On closer consideration an alternative was identified, following Section A1 from Dalmally substation to avoid the deeper peat then reverting to Section A2 to avoid the golf course. Given the uncertainty over the depth of the peat it was considered that this could not be resolved without the further work that would take place as part of the detailed alignment study and it was concluded that this should be simply noted as a potential deviation.

Route 6 was therefore identified as the overall Preferred Route.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 25

5. THE PREFERRED ROUTE

The overall Preferred Route is shown in Figure 5.1 and it is described in terms of route sections in Table 5-1 below.

Figure 5.1: Preferred Route

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 26

Table 5-1 Preferred Route Section Descriptions

Section Description

A2 This section travels south-east for a little over 2 km from Dalmally Substation following the line of the B8077 to the west of Stronmilchan and across the River Orchy. It then turns south-south-west to cross the A85 and railway line close together, to the west of Dalmally village near Croftintuime.

B2a Following on from either of section A2, this section passes through commercial forestry, to the south of the Donald Ban MacIntyre memorial. Passing either through, or following the edge of the forestry, it passes to the north of Blarchaorain, ending approximately 1 km to the west of this property near Tom a’Chaisteal.

B2d Following on from the end of section B2a, this section takes a south-westerly route for around 1.5 km, passing over Barr na h-Earba, to tie in with the start of route section B1b to the south of Achlian.

B1b From around 1 km south of Achlian, this section takes a west-south-westerly and then south- westerly trajectory for around 3.5 km, passing to the north of Creag Bracha. The route turns west- south-west just after crossing the Cladich River, and continues across the A819 to arrive at the preferred North Argyll substation search area to the north of Craig nan Sassanach.

Although this Preferred Route has the lowest environmental impact, it is acknowledged that there are potentially significant environmental effects predicted; particularly in two areas, described below in section 5.1. Consultation and further (detailed) assessment will be required in each of these areas, as discussed below.

5.1 Key issues on the Preferred Route Two areas have been identified that have potential environmental issues that require further assessment:

 The crossing of Strath of Orchy; and  The area south of Achlian between the two large forestry blocks.

In order to inform the appraisal of these areas of concern, further ecology and ornithology surveys are being undertaken across the entire route options. These surveys commenced in May 2016 and will be completed in August 2017. The aim of these surveys is to capture data for a condensed breeding season in 2016, the full breeding season in 2017 and the non-breeding season between 2016 and 2017. Targeted landscape and visual surveys were undertaken in August 2016. The survey areas are highlighted in Figure 5.2 (overleaf).

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 27

Figure 5.2: Areas of additional survey

Section A3 (and consequent link to the eastern branch of section B2a) were included in this further survey to allow full consideration of the options for crossing Strath of Orchy.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 28

5.1.1 Strath of Orchy As noted above (in section 4), all of the route options are considered of high risk for landscape effects due to the high value of the landscape (as recognised by its designation in the local development plan) and its sensitivity to the scale of overhead line development proposed. Similarly all route options are considered of high risk for visual effects because of the proximity of sensitive visual receptors – Dalmally, Stronmilchan and Croftintuime, tourists on the A85 and Oban railway, visitors to Kilchurn Castle and recreational users on the surrounding hills. In addition, all options would have cumulative landscape and visual effects with the existing 275 kV line from Dalmally to Glenfalloch.

Figure 5.3 illustrates the Dalmally area, with a 100 m buffer around residential properties shown as magenta circles. The existing 275 kV OHL is highlighted in yellow.

Figure 5.3: Strath of Orchy

The further landscape and visual review found that the Preferred Route (section A2) could potentially be considered a reasonable ‘landscape fit’ as it follows a natural line in the landscape along the edge of a moderately open valley (meeting Holford Rules 4 and 5) before climbing quite directly up the hillside. However, it would be likely to cause substantial local adverse landscape effects (altering the pattern and character of the landscape locally) and would affect a characterising element of the APQ designation. In terms of visual effect, the Preferred Route runs close to and across the direct aspect of the western end of the linear settlement of Stronmilchan. There are also likely to be adverse visual effects at Croftintuime on the

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 29

south side of the strath. Views from the wider area are likely to be filtered (and potentially screened in summer) by trees along the road, rail and river sides.

Due to these issues, section A3 was reviewed in order to determine whether utilising that route section was a feasible alternative. Section A3 was found to be a poor ‘landscape fit’ climbing up and across the flank of the hill behind Stronmilchan before dropping down to cross the strath and almost double-back on itself. The new line would be higher on the hillside and thus more prominent than the existing OHL, potentially very intrusive and substantially affecting a characterising element of the APQ designation. Given the steepness of the hillside, construction tracks are likely to require substantial cut and fill and are would likely be quite intrusive.

Visually, there would likely be more individual sensitive receptors affected compared to the Preferred Route (closely visible from all of Stronmilchan and around Dalmally Bridge) but, because it passes behind the houses away from their main aspect, there may be fewer subject to a major adverse visual effect However, a line following section A3 would have substantial visual effects across the wider area, appearing prominent for example in views from the bend in the A85 at Drishaig and from Kilchurn Castle.

Neither route section A2 or A3 was found to present significant ecological or ornithological constraints. Both route sections would have a similar impact upon cultural heritage features and other environmental issues. The further review concluded that, whilst recognising the potential for significant adverse effects, the Preferred Route would, on balance, be the better option.

5.1.2 South of Achlian This section is a pinch point for landscape and ornithology in relation to the Rocky Mosaic Landscape Character Type and the SPA as shown in Figure 5.4.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 30

Figure 5.4: South of Achlian

This area was reviewed to see if there were any clear landscape and visual disadvantages to moving the route slightly northwest to avoid the SPA, taking account of concerns about traversing the Rocky Mosaic landscape type, which is nearer the loch-side.

Figure 5.5: Achlian area – preferred route

The review found that the Preferred Route across this area would be a good ‘landscape fit’ and the optimal location on the hillside from both landscape and visual perspectives. It would be set well back from Loch Awe following a natural crease in the land and a slight valley parallel to the loch. The close back-cloth in views from the loch and the north would help to reduce its wider perceptibility and it would appear to have relatively

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 31

limited visual effects (preliminary viewshed analysis suggests that it would be screened from the A819 by topography in the north and by roadside woodland in the south).

Ongoing ornithological surveys have recorded no breeding protected raptor species, although some foraging has been observed and there have been sightings of golden eagle 2 km to the east. The habitat surveys found that the area within 2 km of the route is not optimal for breeding sites and that the habitat either side the SPA boundary across Creag Dhubh is generally similar.

Ornithology surveys have been interested in the following key issues:

 Number of birds present in the area that fly at the height of the potential OHL (i.e. Potential Collision Height)  Presence of protected species in the area. The ornithology surveys undertaken to date (12 months through a 15 month programme) have reported infrequent numbers of birds flying at the height of the potential OHL within the area of the preferred route options. This is known as the Potential Collision Height (PCH), as it indicates the area where bird flights could intercept the OHL with potentially mortal impacts.

No scarce raptors were recorded breeding in the survey area during the 2016 breeding season. Suitable breeding habitat was scarce within the area of the preferred route option and it is therefore considered unlikely that breeding schedule 1 birds will prose a constraint to the project.

The preferred route option runs through a section of the Glen Etive and Glen Fyne SPA. Two observations of golden eagle were recorded during the survey period, both of which were approximately 2 km to the southeast of the preferred route option. The area of SPA within the preferred route option is low altitude rough grazing and marshy grassland that offers no breeding habitat for golden eagle and limited foraging potential. Published reports on golden eagle ranges within the Glen Etive and Glen Fyne SPA and surrounding area do not highlight the this area of SPA to be of significant importance to golden eagle. The nearest golden eagle range is approximately 3.5km from the area of SPA overlapped by the preferred route option.

Following SNH guidance (SNH 2015) there will likely be a requirement to undertake a Habitats Regulations Appraisal (HRA) of the project due to the proximity to the SPA. Based on the factors detailed above it is considered unlikely that there will be any significant impacts of the project on the conservation objectives of the Glen Etive and Glen Fyne SPA. Consideration was given to deviating the route to avoid the SPA. Fieldwork surveys noted that on the ground, it is difficult to distinguish a clear change of landscape character along the character type boundary 1. Moving the line substantially from the Preferred Route – towards the line of Route 1 would not necessarily have greater landscape effects on the LCT itself and would risk being substantially more intrusive on Loch Awe. Nevertheless, it was found that a small deviation slightly northwest of the SPA boundary would not substantially compromise its landscape and visual effects. An OHL here would be a slightly less good landscape fit and slightly more visible from the north side of the loch but would remain out of sight from the A819 because of the shape of the hillside below, and the extent of woodland around Millside.

1 The original assessment was mapped by hand and at a scale of 1:250,000. The boundaries between landscape character types are rarely sharp and cannot sensibly be translated onto large scale mapping: the landscape character type boundary on Figure 5.3 should therefore be considered indicative

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 32

Figure 5.6 Achlian area – broadened preferred route

However, the extent of deviation is limited: moving the route further northwest increases the risk of adverse effects on the ancient woodland to be crossed in the Allt Fearna valley and increases the risk of adverse landscape effects on the landscape of Loch Awe as a whole and on the APQ. A local widening of the Preferred Route to allow for broader consideration of alignment options at Stage 3 (see Figure 5.7) could allow for an alignment line to be found outwith the SPA.

Figure 5.7: Potential widening of the Preferred Route

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 33

6. CONSULTATION ON THE PROPOSALS

6.1 Questions for consideration by consultees  Have we explained the need for this Project adequately?  Have we explained the approach taken to select the Preferred Route adequately?  Are there any factors, or environmental features, that you consider may have been overlooked during the Preferred Route selection process?

 Do you agree that the Preferred Route selected from these options has minimised the environmental effects taking technical and costs into consideration.

 Do you have any other comments about the Preferred Route?

6.2 Visualisations and Visibility Mapping Wireline visualisations of the overall preferred route and some of the alternative options considered have been produced from four key viewpoints and Zone of Theoretical Visibility (ZTV) maps produced. See Appendix B.

6.3 Next steps As shown in Figure 2, following consultation with statutory stakeholders and consideration of responses to the Preferred Route, the next step will be to finalise the Route Selection Study Report and adopt a Proposed Route. The Proposed Route will be taken forward to Stage 3: Alignment during which a Preferred Alignment will be selected and further consultation will be conducted. Public consultation events detailing the proposals described in this document will be held in Autumn 2017; these events will be advertised publicly via traditional printed media, social media and through postal notification.

North Argyll substation to Dalmally 275kV Over Head Line

Route Selection Consultation Document 34

APPENDIX A

ROUTE OPTIONS APPRAISALS:

SUMMARY OF RAG RATINGS AND KEY ISSUES

35

The tables below give summaries of the findings of the environmental and technical appraisals, with the former further informed by the ongoing ecological surveys. They are divided into sections A and B following the approach taken in the environmental options appraisal and Section B is divided into the B1 sections and B2 sections to aid readability. In all cases general issues that apply to all sections in the table are given first, then issues specific to the section under consideration. Note that sections are of different lengths and do not form complete routes: these should not be read as comparison tables. Comparisons are made of complete routes in Chapter 4 and shown in Tables 4-1 and 4- 3. The background colour of the tables indicates the environmental RAG ratings as set out in Section 4 above.

RED AMBER GREEN

High potential for the Intermediate potential for the Low potential for the development development to be constrained development to be constrained to be constrained

SECTION A SECTIONS: SUMMARY OF RAG RATINGS AND KEY ISSUES

Topic A1 A2 A3 A4

Landscape All sections fall entirely within the APQ. A1, 2 and 4 predominantly pass through the Mountain Glens and the Craggy Upland Landscape Character Types (LCTs), A3 roughly along the boundary of the General issues High Tops and the Mountain Glens LCTs.

The landscape affected by all sections is considered very sensitive and an important contributory feature of the APQ. An OHL in any of these route sections has the potential to be a dominating feature as well as acting cumulatively with the existing OHLs. Therefore all sections are given a high risk rating.

Specific issues Likely noticeable loss Likely noticeable loss of Parallel to but much Likely noticeable loss of and RAG rating of trees, altering the trees, altering the pattern higher on the hill than trees, altering the pattern pattern and character and character of the existing OHL, likely to and character of the of the local landscape. local landscape. appear out of place and local landscape. affect the landscape more widely than the alternatives. Construction access also likely to have significant effects.

Visual Numerous sensitive receptors including: the linear settlement of Stronmilchan, Dalmally village and scattered individual houses; tourist users of the A85 and the Oban railway and visitors to Kilchurn General issues Castle and; recreational users of the surrounding hills.

All sections would be closely visible from the A85 and railway, potentially locally prominent in these views. All sections are likely to have cumulative effects in combination with the existing OHL.

36

Topic A1 A2 A3 A4

Specific issues In front aspect in views Close to west end of Behind and above Close to the western end and RAG rating from west end of Stronmilchan in front Stronemilchan (rear of Dalmally, including Stronmilchan although aspect of views, likely views) but likely golf course. West end of views often filtered by very prominent from prominent from parts of section visible from trees. some. Also close to Dalmally. Likely to be Kilchurn Castle as A1 Croftintuime. Visible very prominent and Visible from Kilchurn from Kilchurn Castle but significantly detracting Castle at around 1.5 less prominent than A1. on the skyline in wider km although views from the backdropped and surrounding area partially filtered. including Kilchurn Castle and the A85.

Ecology All route sections would require watercourses and areas of native woodland to be crossed. The marshy areas and riparian margins of the watercourses, and the woodland all have potential to support protected species (such as otter, watervole, red squirrel, plants and invertebrates) and sensitive priority habitat types. Therefore all route sections have the potential to impact these receptors. Areas of peat are present in route sections A1 and A2.

Specific issues Deep peat is likely to Deep peat likely to be Likely to be unavoidable Likely to be unavoidable and RAG rating be avoidable. difficult to avoid due to loss of ancient loss of ancient other constraints woodland. woodland.

Ornithology Northern end of all sections within 1 km of the Loch Etive and Glen Fyne SPA which supports Golden Eagles. All sections are therefore given a high risk rating.

Specific issues Section includes river As for route section A1. Section includes high As for route section A1. and RAG rating and marshy loch level areas around margin, which has the Creag Mhor which have potential to support a the potential to support number of protected raptor species. Lowland birds including geese, valley areas and osprey and other water woodland areas also birds. Also potential have the potential to for other ground support other woodland nesting birds to be and water bird species. present in the marshy areas north of River Orchy.

37

Topic A1 A2 A3 A4

Land Use and The area includes a range of land uses including residential areas (and associated urban uses, Recreation including a shinty pitch), Dalmally golf course, commercial forestry, and agricultural land. The main transport links in the area are the A85, the A819, and the B840, and the West Highland Railway Line (Oban branch).

All sections would require the sterilisation of an area of commercial forest, albeit a relatively low amount in relation to the entire forest asset. All route sections would require temporary restrictions to agricultural activities during construction, but there would be no significant changes to agricultural land uses as a result of an OHL.

Section crosses the No impacts additional to To cross the River Orchy The land between Strath golf course and there those outlined above. and the A85, it is likely Orchy and Dalmally may be a requirement that a tower would be Hotels, is allocated in the to site a tower on the needed close to the Local Plan as Potential golf course itself. recently constructed Development Area for community centre and housing (PDA4001). An area that has been OHL here may affect the allocated for a sports potential for housing field. development.

Hydrology / All route sections would require wetland and watercourse crossings; with some routes crossing larger Geology waterbodies than others. Care would be needed when micro-siting and during construction to avoid or limit potential impacts.

The potential for deep peat is noted in route sections A1 and A2.

Route sections A1, A2, and A4 include areas at higher risk of flooding.

This section would Similar to section A1, but Crossing of River Orchy Crossing of River Orchy cross the River Strae the areas of deep peat simpler than for A1 or simpler than for A1 or and a braided section are likely to be A2. A2. of the River Orchy. unavoidable, due to Construction run-off and The route section follows other constraints. Areas of deep peat erosion risks of working the river bank more should be avoidable. on steep slopes. closely than alternatives.

Cultural Heritage To varying degrees, all sections have the potential effect on the setting of Kilchurn Castle (Scheduled Monument).

All sections include features on the WoSAS Historic Environment Record; however these do not present the same level of constraint as Kilchurn Castle SM. No route section is likely to have a greater or lesser impact on the features present than any other option, and all include approximately the same number.

There are no designated sites within these route sections.

All route sections have the potential to affect unknown archaeology.

38

Topic A1 A2 A3 A4

Visible from Kilchurn Visible from Kilchurn Likely to be very West end of section Castle at around 1.5 Castle but slightly further prominent in views from visible from Kilchurn km although away so less prominent Kilchurn Castle. In Castle as A1 backdropped and than A1. combination with the partially filtered. existing OHL, there is the potential for a greater cumulative effect on the SM.

Engineering All routes would need to cross one A road, one B road, the railway and the river Orchy. Aspects Route sections A1, A2, and A4 are not above 200 m AGL; which reduces wind and ice loading on towers; but all include areas at higher risk of flooding.

Route sections A1 and A2 include areas of deep peat.

In addition to the In addition to the In addition to the In addition to the constraints identified constraints identified constraints identified constraints identified above, this route above, this route section above, this route section above, this route section section would also would also need to cross would also need to cross would also need to cross need to cross Dalmally a 33kV line. two 11kV lines. up to five 11kV lines. golf course. If this route section was Route section A4 is Located within 1 km of to be combined with connected to the most existing road network, route section B2a, it westerly section of B2a therefore a would be required to through to the midpoint requirement for some cross the existing 275 of route section A1. additional access kV OHL, operated by tracks is anticipated. Scottish Power Energy Networks (SPEN), which is likely to cause significant technical difficulties.

Access tracks would be required on steep terrain, and would pass under the existing SPEN 275kV line.

39

SECTION B1 SECTIONS: SUMMARY OF RAG RATINGS AND KEY ISSUES

Topic B1a B1b B1c B1d

Landscape All sections are entirely within the APQ and predominantly pass through the Craggy Upland LCT. A section of the B1a route section (at Achlian) passes through the area mapped as Rocky Mosaic LCT.

An OHL in section B1 risks creating a cumulative landscape effect on Loch Awe in conjunction with the existing OHLs in the area. An OHL in any of these sections is likely to be a prominent feature in the landscape, to a varying degree. The risk rating applied below to options reflects this.

Potential to form a Generally good Limited direct Well sited within prominent feature, landscape fit, but landscape effect but forestry plantation, particularly around potential to be prominent visual effects would unlikely to significantly Achlian and on the in the backdrop to Loch affect the appreciation affect the wider ascent from Strath Awe, – important to the of the APQ from the landscape or the APQ. Orchy. Could affect the APQ Duncan Ban McIntyre setting and backdrop to memorial. the north-eastern end of Loch Awe and Strath Orchy – important to the APQ.

Visual Sensitive receptors are mainly concentrated along the edges of Loch Awe and in Strath of Orchy (including Lochawe, Stronmilchan, Dalmally and Cladich, scattered individual houses; tourist users of the A85 and the A819). There are also a number of memorial viewpoints and the whole area is distantly visible from the destination summits of Stob Daimh and Beinn a Bhuiridh.

North end visible from Route would be visible Route would cross Visible within the forest Stronmilchan, Dalmally from the northern side of directly in front of the Lochawe but unlikely and Kilchurn Castle, Loch Awe from distant Duncan Ban McIntyre to lead to a significant clear views of the whole views at over 4 km away. memorial and is likely effect. Generally well section likely from to be a significantly screened by The route would be Lochawe. Likely closely distracting feature in topography. visible to road users of visible from A819 and valued views from the the A819, where the houses around Achlian. memorial across Loch OHL would cross the Likely to be prominent in Awe. road. It would not be the valued views of Loch visible from built Awe from the Duncan properties or recognised Ban McIntyre memorial. recreational routes and therefore has a medium risk rating.

40

Topic B1a B1b B1c B1d

Ecology A large proportion of these sections is commercial forestry of low ecological value and there are no designations for habitats and mammals in this area. However, there is native ancient woodland lining the burns that any route would have to cross. The watercourses and woodland have potential to support protected species (such as otter, water vole, red squirrel, plants and invertebrates) and sensitive priority habitat types. Therefore all sections have the potential to impact these receptors.

Deep peat may be present in small sections of all route sections; which could support valued habitats and species.

Likely loss of native and Likely tree loss within Small areas of native or Generally through ancient woodland over notable areas of native ancient woodland that coniferous plantation of 500 m of section and ancient woodland (at may be able to be low ecological value, approximately 1 km of Millside and Cladich avoided in detailed although follows a planted ancient River). alignment. small stream which has woodland site. the potential to support protected species.

Ornithology Sections B1a, B1b and B1d come together on the periphery of Glen Etive and Glen Fyne SPA (golden eagle). Other raptors likely to be present in the area include Osprey, also ground nesting birds.

Crosses the edge of the Crosses the edge of the Through commercial Crosses the edge of SPA. SPA. plantation - impact the SPA. potential comparatively low.

Land Use and The predominant land use is commercial forestry with some areas of moorland grazing and some Recreation small areas of improved farmland.

All sections would sterilise of an area of commercial forest which has varying degrees of net impact (in relation to the entire forest asset). All sections would require temporary restrictions to agricultural activities during construction but there would be no significant changes to these uses as a result of an OHL.

The memorial to the poet Duncan Ban McIntyre above Dalmally is a minor tourist destination (views from here appraised under visual amenity)

4 km of commercial 2.5 km of commercial 2 km of commercial 1 km of commercial forestry affected. The forestry affected. forestry affected. forestry affected. small public road and This route section A communications access tracks alongside crosses the A819, which mast is located in this this route section are would require restrictions route section, which used recreationally. during construction. could be a constraint to the siting of the route.

41

Topic B1a B1b B1c B1d

Hydrology / All sections would require watercourse crossings. Care would need to be taken when micro-siting and Geology during construction to avoid or limit potential impacts.

Deep peat may be present in small sections of all route sections. This would require further consideration in relation to the siting of towers; but is unlikely to form a major constraint to any route sections.

No additional impacts to No additional impacts to No additional impacts In addition to the those outlined above. those outlined above. to those outlined impacts outlined above, above. this route section crosses and runs alongside a small stream for around 1 km. Additional care would be required during construction, but this does not increase the overall risk rating.

Cultural Heritage There are no designated cultural heritage assets within these sections.

All route sections have the potential to affect unknown archaeology.

Potential effects on the Section passes within Section passes very No cultural heritage setting of Kilchurn Castle 500 m of Keppochan close to Tom features identified. SM and particularly the cup-marked rock SM a’Chaisteal, dun, category B listed Duncan near the western end of Teatle Water SM and Ban McIntyre memorial. the route the setting of the Duncan Ban the SM would need to be Memorial. Potential WoSAS HER indicates a considered. setting issues for both. number of further recorded sites however WoSAS HER indicates these are likely to be a number of further avoidable recorded sites however these are likely to be avoidable

Engineering All routes would need to cross an existing 33kV OHL, except for B1d. Aspects The majority of route sections B1b and B1d and all of B1a and B1c are not above 200 m above ground level (AGL); which reduces wind and ice loading on towers.

The potential presence of glacial deposits and peat are noted across all route sections.

Despite the proximity to Loch Awe, flooding is not expected to be an issue in any route section.

42

Topic B1a B1b B1c B1d

Engineering This route section follows This route section will This route section is This route section does Aspects the A819 and is also in need to cross one A road shorter in comparison not require any road or close proximity to to the west of North to other B1 route overhead line forestry tracks. The Argyll substation (A819), sections. There are crossings. It is within route section crosses an and an existing 33kV existing access tracks close proximity of existing 33 kV overhead OHL. in place that could be existing access tracks. line. utilised. 10% of the route section 10% of the route Given the length of this is over 200 m. An existing 33 kV section is over 200 m. route section there will overhead line will be an additional number require to be crossed. of towers required. The entire route The entire route section section is below 200 m. is below 200 m.

43

SECTION B2 SECTIONS: SUMMARY OF RAG RATINGS AND KEY ISSUES

Topic B2a B2b B2c B2d

Landscape All sections are entirely within the APQ and pass through the Craggy Upland LCT. The Craggy Uplands are a landscape of broad scale patterns: locally much of it is under plantation forestry with an established pattern of felling and restocking, capable of accommodating the open wayleave required for an OHL

Situated further from Loch Awe and the more valued valley landscapes than the B1 sections, the B2 sections generally pass through areas that contribute less strongly to the value of the APQ and would have lesser effect on the setting of the more valued landscapes

No additional impacts to The moorland stretch of An OHL here would be The section follows a those outlined above. this section lies some prominent as it slight plateau, away 500 m from the Ben Lui descends towards the from the more sensitive WLA but topography is River Cladich valley and loch shore area.. such that visbility from on the western side of Although it would be the WLA is likely to be the A819, but would visible from more limited, so risk of otherwise be generally sensitive landscapes it affecting wild land well-accommodated is likely to appear character is low. through the terrain rational within the land form and is considered

likely to be at sufficient distance to avoid being significantly detracting.

Visual Sensitive receptors are mainly concentrated along the edges of Loch Awe and in Strath of Orchy (including Lochawe, Stronmilchan, Dalmally and Cladich, scattered individual houses; tourist users of the A85 and the A819). There are also a number of memorial viewpoints and the whole area is distantly visible from the destination summits of Stob Daimh and Beinn a Bhuiridh.

Visible from Dalmally Visible from Lochawe Visible from several Visible from Lochawe and Stronmilchan but further and smaller isolated properties and although not skylined (numbers affected in the view than prominent from a short and unlikely to be depend on whether it alternatives and unlikely section of the A819 prominent. Visible from ties into section A2 or to skyline in key views. around the River several isolated A3) although generally Unlikely to be visible Cladich. Some views properties and a short be to the rear of the from the A819 but from the north side of section of the A819. more valued views, and visible from several Loch Awe but likely to Visible from the Duncan from some isolated isolated properties. look well contained Ban McIntyre memorial houses. Close to the Potentially prominent in within these views. but out of the main Duncan Ban McIntyre periphery of main views valued views and seen memorial but to the rear from Duncan Ban within a context of of the main valued MacIntyre memorial. forestry. views down Loch Awe.

44

Topic B2a B2b B2c B2d

Ecology A large proportion of these sections is commercial forestry of low ecological value and there are no designations for habitats and mammals in this area. However, there is native ancient woodland lining the burns that any route would have to cross. The watercourses and woodland have potential to support protected species (such as otter, water vole, red squirrel, plants and invertebrates) and sensitive priority habitat types. Therefore all sections have the potential to impact these receptors.

Areas of deep peat may be present, which could support valued habitats and species.

None in addition to None in addition to There is potential for There is potential for those outlined above. those outlined above. deep peat at the deep peat in the un- western end of this forested areas of this The medium risk rating route. Notable areas of route. Small areas of applied to this route native woodland at native and ancient section would be Millside and Cladich woodland which would reduced to low if the River, part of which is need to be crossed. OHL were located in the noted as being ancient. There would be forested area. There would be unavoidable tree loss unavoidable tree loss in this area

Ornithology All sections are within 1500 m of the Glen Etive and Glen Fyne SPA (golden eagle), B2b crosses a spur of the SPA and B2d runs just inside the end of the spur.

Other raptors and ground nesting birds are likely to be present in the area.

section located between c.750 m of this section This route section is c.650 m of this section 1 km and 2 km from the crosses a peripheral located in close crosses the end of the SPA. and narrow, protruding proximity to the Glen peripheral and narrow, and potentially Etive and Glen Fyne protruding and disconnected part of the SPA. potentially disconnected SPA. Surveys are part of the SPA. ongoing to establish the Surveys are ongoing to presence of birds in the establish the presence area. of birds in the area.

Land Use and The predominant land use is commercial forestry with some areas of moorland grazing. All sections Recreation would sterilise of an area of commercial forest which has varying degrees of net impact (in relation to the entire forest asset). All sections would require temporary restrictions to agricultural and stalking activities during construction but there would be no significant changes to these uses as a result of an OHL.

The memorial to the poet Duncan Ban McIntyre above Dalmally is a minor tourist destination (views from here appraised under visual amenity). There are no known recreational routes in the area.

45

Topic B2a B2b B2c B2d

None in addition to In addition to the In addition to the None in addition to those outlined above. impacts outlined above, impacts outlined above, those outlined above. a communications mast this route section is located in this route crosses the A819, which section, could be a would require constraint to the restrictions during detailed alignment. construction.

Hydrology / All sections would require watercourse crossings, the largest of which is the Cladich River. Care would Geology be taken when micro-siting and during construction to avoid or limit potential impacts.

Areas of deep peat may be present, which would require further consideration in detailed alignment and tower siting. The risk ratings reflect the extent of likely deep peat.

No additional impacts to No additional impacts to No additional impacts to No additional impacts to those outlined above. those outlined above. those outlined above. those outlined above.

Cultural Heritage All sections have potential setting issues whilst B2a, B2b and B2d come together close to Tom a’ Chaisteal, dun, SM. All sections have the potential to affect unknown archaeology.

Section includes Tom a’ Section includes Tom a’ No designated (or HER) Section includes Tom a’ Chaisteal, dun SM and Chaisteal, dun SM and sites within this section. Chaisteal, dun SM. passes within c. 500 m passes within c. 250 m Passes within 500 m of Potential detailed of two other SMs: of Dychlie (deserted Keppochan cup-marked alignment and setting Achtermally/Uachdar crofts) SM. rock SM: potential issues Mhaduidh (deserted Potential detailed setting issue. township) and Dychlie alignment and setting (deserted crofts). issues Potential detailed

alignment and setting issues

Engineering Route sections B2b-B2d would require crossing an existing 33kV OHL. Aspects Route sections B2a and B2d are not above 200 m AGL; which reduces wind and ice loading on towers.

The potential presence of glacial deposits and peat are noted across all route sections.

Despite the proximity to Loch Awe, flooding is not expected to be an issue in any route section.

46

Topic B2a B2b B2c B2d

Engineering This route section does Over 1 km from the This route section is an This is the shortest route Aspects not cross any roads or nearest A road; alternative option to B1c to connect B1b to B2a. existing OHL. however there are a for leaving North Argyll This route section is limited number of substation. Selecting this route over 1 km to the nearest existing forestry access section would have Although the route A road (the A819). tracks in close ramifications on the section is over 1 km to proximity. There are some existing crossings for routes A2, the nearest A road, access tracks in the A3, and A4. This route section would there are some existing northern area of the cross an existing 33kV access tracks in the The entire route section route section, but new OHL. area. is below 200 m AGL, access tracks would be which reduces wind and 60% of the route section This route section would required elsewhere. ice loading on towers. is over 200 m; which necessitate crossing the This route section would would require additional A819 and an existing Over 1 km from the cross an existing 33kV tower strengthening to 33kV OHL. nearest A road (the OHL. counteract the impacts A85) and limited Over 50% of the route of increased wind and The entire route section existing access tracks section is above 200 m ice loadings. is below 200 m AGL, are available. AGL, which would which reduces wind and Total length: 3.8 km require additional tower Total length: 3.7 km ice loading on towers. strengthening to

counteract the impacts Total length: 2.3 km of increased wind and ice loadings.

Total length: 3.8 km

47

APPENDIX B

ZTVS AND WIREFRAMES

48