APPENDIX 12.1 ABNORMAL LOADS ASSESSMENT

Transcription

1 APRIL 2017 APPENDIX 12.1 ABNORMAL LOADS ASSESSMENT

2 NORTH LOWTHER ENERGY INITIATIVE WINDFARM ENVIRONMENTAL STATEMENT IDENTIFICATION TABLE / owner Study Type of document and Buccleuch Estates Ltd Windfarm Environmental Statement Technical Appendix April 2017 Number of pages 17

3 TABLE OF CONTENTS 1. INTRODUCTION 4 2. TURBINE TRANSPORT REQUIREMENTS 5 3. PROPOSED ROUTE DESCRIPTION OF ROUTE PINCH POINTS 6 4. PINCH POINTS PP1 M6 JUNCTION PP2 A74 (M) OFF-SLIP / A702 / B7078 ROUNDABOUT PP3 B7078 / B740 PRIORITY JUNCTION PP4 AND PP5 LEFT-HAND AND RIGHT-HAND BENDS THROUGH CRAWFORDJOHN PP6 BIRKCLEUGH BRIDGE PP7 RIGHT-HAND BEND AT NETHER WHITECLEUGH PP8 LEFT-HAND BEND AT NETHER WHITECLEUCH OVER BRIDGE SITE ACCESS POINT A PP9 S BEND AFTER SPANGO BRIDGE PP10 RIGHT-HAND AFTER CORSEBANK FARM PP11 RIGHT-HAND BEND SOUTH OF PP PP12 RIGHT-HAND BEND NORTH OF BACKBURN WOOD SITE ACCESS POINT B SUMMARY AND CONCLUSIONS CONCLUSION 16 Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 3/17

4 LIST OF FIGURES Figure 2.2 Tower Transport Configuration 6 Figure 3.2 Pinch Points Along Route 7 Figure 4.1 M6 Junction 44 7 Figure 4.2 A74 (M) / A702 / B7078 Roundabout Junction 8 Figure 4.3 B7078 / B740 Priority Junction 9 Figure 4.4 Left-hand Bend on B74 (M) 9 Figure 4.5 Right-hand Bend on B Figure 4.6 Field Adjacent to Crawfordjohn Farm (Looking North) 10 Figure 4.7 Birkcleugh Bridge 11 Figure 4.8 Right-hand Bend on B Figure 4.9 Left-hand Bend on B740 over Bridge 12 Figure 4.10 Site Access Point A 12 Figure 4.11 S after Spango Bridge 13 Figure 4.12 Right-hand after Corsebank Farm 13 Figure 4.13 Right-hand Bend South of PP9 14 Figure 4.14 Right-hand Bend North of Backburn Wood 15 Figure 4.15 Site Access Point B 15 LIST OF TABLES Table 1. Summary of Issues 16 Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 4/17

5 1. INTRODUCTION SYSTRA has been commissioned to undertake an Abnormal Loads Assessment (ALA) on behalf of North Lowther Energy Initiative (NLEI) in support of the proposed North Lowther Windfarm (hereafter referred to as the Proposed Development ). SYSTRA produced the Environmental Statement (ES) Access, Traffic and Transport chapter to support the Environmental Impact Assessment (EIA) process for the Proposed Development and this report forms a Technical Appendix to the ES chapter The proposed site Development Area falls within the administrative boundary of Dumfries and Galloway and borders the boundary of South Lanarkshire Council. The site lies to the west of the M74 trunk road (T) which links the north-west of England with Central Scotland. Figure 1 below indicates the general location of the proposed development and the two points of access. Figure 1.1 Site Location and Access Points By assessing the characteristics of the loads and the route under consideration, it has been concluded that the transportation of the 60m blades is the worst case scenario in terms of length while the bottom tower section at 4.5m wide (and approximately 18m in length) represents the worst case load in terms of width. For the purposes of this assessment and with regard to swept path analyses, both load configurations have been considered For the purposes of this assessment, it has been assumed that the components will be transferred by sea to King George V Docks in Glasgow and then brought to site via the motorway and local road network to site It is envisaged that that the route to the A74(M) to the east from the port of delivery will generally be of a suitable standard to accommodate the abnormal loads associated with the proposed development. The transporter will head past the site to M6 Junction 44 before turning and heading north to exit the A74(M) at Junction 13 before turning left at the off-slip / B7078 roundabout to then head west along the B7078 for a distance of approximately 4km. The transporter would then turn left onto the B740, passing through Crawfordjohn and continuing south on the B740 to the two site access points The purpose of this report is to assess the feasibility of the route from Glasgow to the site via Crawfordjohn. A commentary is provided for each pinch point on the identified route along with diagrams and swept path analysis where required. Several site visits have been undertaken to assess the potential routes to the site which has led to the selection of the route identified in this report This report continues by examining the Transport Requirements associated with the candidate turbine in Chapter 2. Chapter 3 highlights the proposed route while Chapter 4 examines each pinch point along the chosen route. Chapter 5 contains a summary and conclusions. 2. TURBINE TRANSPORT REQUIREMENTS At this stage in the design process, the haulier of the wind turbine components is not yet known nor the exact specifics of the vehicle that they will use. However, from experience of previous developments and from the details of the materials to be moved, it is possible to estimate (with some degree of accuracy) the specifics of the design vehicles that will be used to allow a route assessment to be undertaken The proposal is for turbines with a maximum tip height of 149m and a rotor diameter of 120m erected on a 100m tower. This equates to single blades with a length of approximately 60m which would be transported to site by a series of abnormal loads and these items represent the worst-case in terms of the longest load to be transported. The tower units at a width of 4.5m are considered to be the worstcase in terms of the widest loads that are to be transported Systra has assessed the identified route option from the strategic road network to the site and have used the computer package AutoTrack to produce a swept path analysis for identified pinch points on the route. The following worst-case vehicle/trailer combinations have been used to produce the swept path analysis: The Proposed Development is for 35 turbines which would be manufactured off-site and transferred to the site for assembly. The turbine considered for this site is described in Section 2 of this report. A 55m long and 2.56m wide articulated vehicle which consists of a tractor unit and an extendible trailer for the transportation of the blades. The blades will overhang the back end of the trailer by 7m. A 40m long tractor and load combination for transporting the base tower section with tractor unit at from, load clamped in centre and a wheeled bogie unit at the back Details of the vehicle are contained within Appendix A of this report for reference while schematics of the load configurations are indicated by Figures 2.1 and 2.2 below for the blade and tower loads respectively. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 5/17

6 Figure 2.1 Blade Transport Configuration Figure 3.1 Proposed Abnormal Loads Route to Site Figure 2.2 Tower Transport Configuration It is noted that the trailer units associated with the design vehicle for the transportation of the blades is extendible so on delivery of the abnormal loads; the trailer can be reduced in length. The tower transport vehicle will also be greatly reduced in length for its return journey. In these circumstances, the Autotracking and route assessment has only been undertaken for the route to the site and not the route away from site for the transporter vehicles. 3. PROPOSED ROUTE 3.1 Description of Route It is assumed that the port of delivery will be the King George IV Docks in Glasgow. The transport vehicles would leave the port on the M8 heading eastbound onto the M74. The abnormal load vehicles would remain on the M74 southbound until it joins the M6 near Carlisle. The vehicles would leave the M6 at Junction 44 to turn and re-join the motorway heading north towards Abington (A74(M)). This is a route that has been used successfully in the past for other windfarm developments which lie on the west side of the motorway The route exits the A74(M) at Junction 13 and then follows the B7078 west towards Uddington until its junction with the B740. At the junction of the B7078 and B740, the abnormal load vehicles would take a left turn and continue southwards through Crawfordjohn towards Sanquhar. The vehicles would then turn left onto one of two site access junctions located on the east side of the B The proposed route for accessing the site is indicated by Figure 3.1 below. 3.2 Pinch Points The initial access appraisal identified a number of pinch points while the site visit and desk-top appraisal identified further pinch points on the route. In total, 12 pinch points have been identified excluding the site access points. The locations of these pinch points are identified by Figure 3.2 below, while the following chapter contains a commentary for each pinch point on the basis of the swept path analysis which has been undertaken This section of the report assesses in detail a number of potential pinch points that may pose an issue to the delivery of wind turbine components from the A74 (M) to the site via proposed route. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 6/17

7 Figure 3.2 Pinch Points Along Route An additional swept path analysis of the wider vehicle that will transport the tower component has been undertaken. The specification for this vehicle is indicated by Drawing Ref: SCT/TowerTransporter in Appendix A. 4. PINCH POINTS 4.1 PP1 M6 Junction The first pinch point (PP) is a grade separated roundabout which connects the M6 Junction 44 slip roads with the A7 and A689. The junction is located on the northern outskirts of Carlisle, north of the Kingstown Retail Park. It provides access from the A689 and the A7 to the north and southbound carriageways of the M6. The northbound off-slip, from which the abnormal load vehicles will enter the junction, is a two lane road with a width of approximately 7.5m while the circulatory carriageway of the roundabout is 3 lanes wide with a width of approximately 10m. The M6 southbound slip road, from which the abnormal load vehicles will exit the roundabout, is approximately 7m wide and has 2 lanes The general characteristics of the pinch point are indicated by Figure 4.1 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/001A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/001B contained within Appendix B. Figure 4.1 M6 Junction A number of pinch points have been identified on the route and for each of these locations, a desktop study and swept path analysis was undertaken. Where possible third party land, street furniture and offline routes were avoided but, where unavoidable, consideration was taken as to what would be the most sensible solution in light of safety and financial considerations A detailed commentary for each of the pinch point locations is supplied below including a description of the path taken, itemisation of any street furniture that will require temporary removal, a description of any areas which will require temporary paving and areas of third party ownership For each pinch point the worst case vehicle has been analysed in terms of length which is the transportation of 60m blades. It is noted that the delivery vehicles will be equipped with independent rear wheel steering and this feature has been used in the Swept Path Analysis where required. The specification of the vehicle used to transport the blades is indicated by Drawing Ref: SCT/BladeTransporter in the swept path analysis can be found in Appendix A. Description of Path The abnormal load vehicles will approach the pinch point from the north and will need to circulate the roundabout onto the M6 northbound on-slip which would be the last exit. No over-run of the transporter vehicles is indicated by the swept path analysis. The swept path analysis indicates that the blade transporter will over-sail the verge area on the southern side of the southbound off-slip and the central island of the A7 South (Kingstown Road). Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 7/17

8 Street Furniture requiring temporary removal It is not anticipated that any street furniture will require temporary removal at this pinch point. Temporary paving required The requirement for temporary paving is not anticipated at this pinch point. Infringement on 3rd party land No third party land is required at this pinch point. 4.2 PP2 A74 (M) Off-slip / A702 / B7078 Roundabout This pinch point is a roundabout which provides access between the A74 (M) northbound slip roads, the A702 bridge over the A74 (M) and the B7078 road which extends to the west from the junction. The junction is in a relatively rural area and forms the western part of a dumb-bell arrangement with a bridge over the A74 (M) completing the overall motorway interchange. The A74 (M) northbound off slip approach to the junction is a single lane while the circulatory carriageway of the roundabout is also marked out as a wide single lane. The general characteristics of the pinch point are indicated by Figure 4.2 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/002A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/002B contained within Appendix B. Figure 4.2 A74 (M) / A702 / B7078 Roundabout Junction Description of Path The abnormal load vehicles will approach the pinch point from the south and take the first exit at the roundabout onto the B7078. The swept path analysis indicates that the wheels of the blade transporter will stay within the confines of the existing carriageway for the majority of the pinch point with the exception of a slight area of over-run on the central island. The load will marginally over-sail the outside verge of the A74 (M) off-slip as well as the footway on the inside of the exit of the roundabout. The blade will also significantly over-sail the footway / verge on the entry to the roundabout and the central island The wheels of the tower transporter will remain within the confines of the carriageway while the load will have only minor over-sail the central island. Street Furniture requiring temporary removal It is anticipated that a chevron sign, a no entry road sign and two lighting columns may require temporary removal on the entry to the roundabout. On the central island, two lit chevron boards and some shrubbery may require temporary removal. Temporary paving required A small area of temporary paving may be required at this pinch point on the central island. Infringement on 3rd party land No third party land is required at this pinch point. 4.3 PP3 B7078 / B740 Priority Junction This pinch point is a priority junction between the B7078 and B740 routes as well as providing access to a quarry site opposite. The junction is within a rural location and is surrounded by agricultural land. The B7078 is a single carriageway on approach to the junction with a width of approximately 8m while the B740 to the immediate south of the junction is a single carriageway with a width of approximately 6m. The general characteristics of the pinch point are indicated by Figure 4.3 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/003A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/003B contained within Appendix B. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 8/17

9 Figure 4.3 B7078 / B740 Priority Junction 4.4 PP4 and PP5 Left-Hand and Right-Hand Bends through Crawfordjohn This pinch point is a left-hand bend on the B740 within the village of Crawfordjohn (PP4) followed in quick succession by a right-hand bend (PP5) which effectively make up one large S bend. The road is single carriageway at this location and is approximately 6m wide. Stone walls are located either side of the road separated from the carriageway by narrow grass banks. Private properties are located on either side of the road on the approach to the pinch point The general characteristics of PP4 are indicated by Figure 4.4 below while the general characteristics of PP5 are indicated by Figure 4.5 below. A plan showing the swept path of the blade transporter vehicle through the two pinch points is indicated by Drawing Ref: SCT4104/I/R1/004A & 005A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/004B & 005B contained within Appendix B. Figure 4.4 Left-hand Bend on B74 (M) Description of Path The abnormal load vehicles will approach the pinch point from the east on the B7078 and turn left at the junction onto the B740. The swept path analysis indicates that the wheels of the blade transporter will over-run the grassed area on the inside of the turn in order to complete the turning manoeuvre. The swept path for the blade transporter indicates that it over-sails the verge area on the north side of the B7078 as well as the area on the inside of the turn Similarly to the blade transporter, the tower transporter over-runs the verge on the inside of the left turn manoeuvre. The swept path cuts across the cycle path. Street Furniture requiring temporary removal It is anticipated that four road signs will require temporary removal at this pinch point. Temporary paving required A large area of temporary paving will be required at this pinch point in order to construct a suitable overrun area. It is also noted that the grassed area on the inside of the turn lies at a lower level than the B7078 so the level difference will require to be made up in crushed rock fill between the B7078 and the B740 and the impact upon the cycle track through this area will need to be incorporated into the design Whilst temporary paving is required for the tower transporter, the area required is much smaller than that of the blade transporter. Infringement on 3rd party land A land ownership check has been undertaken and confirmed that the land required is within the control of the roads authority, therefore no third party land is required. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 9/17

10 Figure 4.5 Right-hand Bend on B740 Figure 4.6 Field Adjacent to Crawfordjohn Farm (Looking North) Description of Path The abnormal load vehicles would approach the pinch point from the north and require to negotiate a sharp left-hand bend. It is noted that this bend precedes another right turn bend. The swept path analysis indicates that the wheels of the blade transporter cannot be accommodated within the existing carriageway on the approach to the bend and will require to over-run into an area that is a combination of grass banking and private ground. There is also a significant over-sail of the blade into private ground on the west side of the carriageway on the approach to the bend As the vehicle starts to make the turn to the right (PP5), the vehicle over-runs into the field area adjacent to Crawfordjohn Farm and also into the grass banking area on the east side of the road. There is also significant over-sail of the load into these areas In order for the tower transporter to negotiate this pinch point, an over-run area is required on the outside of the bend across the verge and into third party land. On the inside of the bend the blade and body oversail the verge. Although the area land required to negotiate the tower transporter is less than that of the blade transporter, both have the same requirements in terms of third party land The swept path of the tower transporter at pinch point 5 indicates that third party land on the inside of the bend will be required as the transporter cannot manoeuvre within the existing carriageway. This area of land is indicated by Figure 4.6. Street Furniture requiring temporary removal A mitigation scheme will be required in order to overcome this pinch point involving the temporary removal of boundary walls on the approach to the pinch point, removal of telegraph poles adjacent to the road and the removal of boundary walls that bound the field next to Crawfordjohn Farm. All sections of wall and telegraph poles removed will be reinstated following construction of the Proposed Development. Temporary paving required A bypass facility would require to be constructed across the field adjacent to Crawfordjohn Farm in order to negotiate this pinch point. A preliminary design has been undertaken for this bypass facility to ensure that a technical solution can be delivered which is suitable to accommodate the vertical clearance requirements associated with the abnormal load vehicles and to inform the third party land negotiations. The design involves re-profiling the field area to deliver a bypass route that is on a downward gradient from when it leaves the public road until it re-joins after the bends. The design incorporates a straight grade with transition gradients at either end to ensure that the vehicles do not ground out. The bypass facility would be formed on a solid foundation layer and would be made up of suitable crushed rock fill material. The first 15m and the last 15m of the track would be surfaced in tarmac to ensure a smooth transition and to ensure that no damage occurs to the edge of the adopted road. When not in use, the bypass route would be gated to prevent public access. Infringement on 3rd party land Third party land will be required to deliver the bypass route. A topographical survey has been undertaken for the area adjacent to the two pinch points. This has been used to develop a preliminary design for the Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 10/17

11 new bypass facility which involves a new section of road down through the field area. The preliminary design is included within Appendix C (Drawing SCT4104/P/GL/02). 4.5 PP6 Birkcleugh Bridge path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/007B contained within Appendix B. Figure 4.8 Right-hand Bend on B The next pinch point is Birkcleugh Bridge which is situated along a straight section of the B740 south of Crawfordjohn near Birkcleugh Farm. The road reduces in width from a single carriageway to a single lane of approximately 3m width. There is no problem with the bridge in terms of the horizontal geometry. This existing bridge has, however, been identified by South Lanarkshire Council through the Scoping Stage as being potentially unsuitable for abnormal loads in terms of the bridge s ability to accommodate the weight of the vehicles. The developer acknowledges that a full structural assessment will be undertaken post S36 consent to determine what mitigation may be required to the existing structure. This could potentially take the form of a structural upgrade to the existing structure, the replacement of the structure with a new bridge or the construction of a parallel temporary structure to accommodate the abnormal load movements. One of these measures would form suitable mitigation to enable the abnormal loads to route through this pinch point Swept path analysis is not required at this pinch point as the horizontal geometry of the road at this section is not a constraint for abnormal loads. The general characteristics of this pinch point are indicated by Figure 4.7 below. Figure 4.7 Birkcleugh Bridge Description of Path The abnormal load vehicles will approach the pinch point from the north-east on the B740. The swept path analysis for the blade transporter indicates that the vehicle will require to swing out to the left in advance of the bend in order to make the turn. The wheels of the vehicle will over-run the existing grass verge area on the east side of the road and utilise the full extent of the over-run area that has already been constructed on the outside of the bend (this can be seen in Figure 4.7 above) wheels of both the blade transporter and generator transporter will over-run the grassed area on the outside of the turn in order to negotiate the bend The swept paths also indicate that the vehicle will over-sail a substantial area on the outside of the turn as well at the fence line on the inside of the bend The swept path analysis for the tower transporter indicates that it will over-run the verge on the approach and over-sail the verge and fence on the inside of the bend. Street Furniture requiring temporary removal 4.6 PP7 Right-Hand Bend at Nether Whitecleugh This pinch point is a right-hand bend on the B740 approximately 6.3km to the south-west of Crawfordjohn. The road is a single carriageway at this rural location and is approximately 6m wide. There are grassed areas on either side of the road and an informal over-run area has been formed on the outside of the bend. The general characteristics of the pinch point are indicated by Figure 4.7 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/007A. The swept It is not anticipated that any street furniture will require temporary removal at this pinch point. Temporary paving required Temporary paving is required for both transporter vehicles on the outside of the bend on the approach to the pinch point. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 11/17

12 Infringement on 3rd party land It would appear that both abnormal load vehicles will impinge upon third party land on both the inside and outside of the bend but a check will be required on the extent of roads authority control. 4.7 PP8 Left-Hand Bend at Nether Whitecleuch over Bridge This pinch point is a left-hand bend on the B740 immediately to the south-west of the previous pinch point. The pinch point consists of two small bridge structures and a left-hand bend. There are grassed areas on either side of the road but there are both stone and metal bridge parapets as well which must be negotiated. The general characteristics of the pinch point are indicated by Figure 4.8 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT34104/I/R1/008A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/008B contained within Appendix B. Figure 4.9 Left-hand Bend on B740 over Bridge Temporary paving required No temporary paving is anticipated at this pinch point. Infringement on 3rd party land No third party land is required at this pinch point. 4.8 Site Access Point A Site Access Point A is located approximately 300m north of Spango Bridge and incorporates an existing track which is flanked by open land on either side. The abnormal load vehicles will make a left turn onto the existing track to reach the site. Access Point A is indicated by Figure 4.10 below while a plan showing the preliminary design of the modified junction and swept path of the blade transport vehicle is included in Appendix B (titled: Figure 4.8A). Figure 4.10 Site Access Point A Description of Path The abnormal load vehicles will approach the pinch point from the north-east on the B740. The swept path analysis indicates that the wheels of the blade transporter will just stay within the confines of the existing carriageway but there will be significant over-sail of verge area on either side of the pinch point The tower transporter has some over-sail on the outside of the bend on the approach as well as the inside of the bend just after it has crossed the bridge. Street Furniture requiring temporary removal It is not anticipated that any street furniture will require temporary removal at this pinch point. Description of Path The abnormal load vehicles will approach the access point from the north on the B740. The swept path analysis indicates that the wheels of the blade transporter will over-run a large section the field on the inside of the left turn. The swept path analysis indicates that that there will be minor over-sail on the southern grass verge on approach to the access. There will also be significant over-sail of the grassed area on the northern side of the B740 and of the field on the inside of the left turn onto the access track. Street Furniture requiring temporary removal It is not anticipated that any street furniture will require temporary removal at this pinch point. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 12/17

13 Temporary paving required A large area of temporary paving will be required in the field to allow the vehicles to turn. This is reflected in the preliminary design of the site access junction which is included within Appendix B. Infringement on 3 rd party land An area of third party land will be required to the west of the carriageway to provide the turning area for the vehicles. 4.9 PP9 S Bend after Spango Bridge This pinch point is a left-hand bend followed by a right-hand bend on the B740 south-west of Spango Bridge. There are grassed areas on the northern side of the carriageway while there is a fence / wall separated from the carriageway by a thin strip of grass on the southern side. The general characteristics of the pinch point are indicated by Figure 4.11 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/009A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/009B contained within Appendix B. Figure 4.11 S after Spango Bridge Street Furniture requiring temporary removal It is not anticipated that any street furniture will require temporary removal at this pinch point. Temporary paving required No temporary paving is anticipated at this pinch point. Infringement on 3rd party land No third party land is required at this pinch point PP10 Right-Hand after Corsebank Farm This pinch point is a sweeping right-hand bend on the B740 south of Corsebank Farm. There are grassed areas on the west side of the carriageway while the eastern side is bounded by a fence. The general characteristics of the pinch point are indicated by Figure 4.12 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/010A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/010B contained within Appendix B. Figure 4.12 Right-hand after Corsebank Farm Description of Path The abnormal load vehicles will approach the pinch point from the north-east on the B740. The swept path analysis indicates that the wheels of the blade transporter will just stay within the confines of the existing carriageway but there will be a minor over-sail of the verge area on the northern side of the carriageway on the inside of the right-hand bend The tower transporter and the component will navigate the pinch point without any over-run or over-sail. Description of Path The abnormal load vehicles will approach the pinch point from the north on the B740. The swept path analysis indicates that the wheels of the blade transporter will just stay within the confines of the existing carriageway. The swept path analysis indicates that over-sail will occur on the western edge of the carriageway prior to the bend, on the outside of the corner and on the inside of the bend The tower component will marginally over-sail the inside of the bend. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 13/17

14 Street Furniture requiring temporary removal A telegraph pole on the outside of the bend may need to be temporarily relocated to allow the blade to over-sail. Temporary paving required No temporary paving is anticipated at this pinch point. Infringement on 3rd party land Third party land may be required on the inside and outside of the bend to accommodate over-sail PP11 Right-Hand Bend South of PP This pinch point is a sharp right-hand bend on the B740 immediately south of PP9. The western edge of the carriageway is a steeply banked hillside while the eastern edge of the carriageway is a steeply banked drop to Crawick Water below. The general characteristics of the pinch point are indicated by Figure 4.13 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/011A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/011B contained within Appendix B. Figure 4.13 Right-hand Bend South of PP9 Description of Path The abnormal load vehicles will approach the pinch point from the north on the B740. The swept path analysis indicates that the wheels of the blade transporter will be required to significantly over-run the carriageway to the east to allow the blade to navigate the corner. The swept path analysis also indicates that significant over-sail will occur on the eastern edge of the carriageway while marginal over-sail of the blade and body will occur on the inside of the bend The tower component will marginally over-sail the inside of the bend and marginally over-run the carriageway on the outside of the bend, this over-run is within the area required for the blade transporter. Street Furniture requiring temporary removal It is anticipated that a large section of fencing and 2-3 telegraph poles will need to be temporarily removed / relocated. Temporary paving required A scheme of mitigation will be required to provide a build out to support the over-run area to the east of the carriageway as the banking slopes away from the carriageway. A possible alternative to this is to make a cutting into the banking on the inside of the bend which would facilitate the over-sail of the turbine component. Infringement on 3rd party land A check will be required on the extents of the road boundary but areas of third party land are anticipated PP12 Right-Hand Bend North of Backburn Wood This pinch point is a sharp right-hand bend on the B740 north of Backburn Wood. There are grassed areas on the southern side of the carriageway while the northern side consists of hillside which rises sharply in the vicinity of the road. The general characteristics of the pinch point are indicated by Figure 4.14 below while a plan showing the swept path of the blade transporter vehicle is indicated by Drawing Ref: SCT4104/I/R1/012A. The swept path of the tower transporter is indicated by Drawing Ref: SCT4104/I/R1/012B contained within Appendix B. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 14/17

15 Figure 4.14 Right-hand Bend North of Backburn Wood the preliminary design and swept path of the blade transporter vehicle is included in Appendix B (titled: Figure 4.8B). Figure 4.15 Site Access Point B Description of Path The abnormal load vehicles will approach the pinch point from the north on the B740. The swept path analysis indicates that the wheels of the blade transporter will require to over-run the verge area to the south / east to allow the blade to navigate the corner. The swept path analysis also indicates that significant over-sail will occur on the eastern / southern edge of the carriageway while marginal over-sail of the blade and body will occur on the inside of the bend The tower component will marginally over-sail the inside of the bend. Street Furniture requiring temporary removal It is not anticipated that any street furniture will require temporary removal at this pinch point. Temporary paving required A large strip of temporary paving is required for the blade transporter vehicle on the outside of the bend on the approach to the bend. Infringement on 3rd party land A check will be required to determine whether the grassed area is wholly within the control of the roads authority Site Access Point B Site Access Point B is located in the vicinity of an existing access track and bridge over the Crawick Water. As this existing bridge is not suitable to accommodate the abnormal loads (with regards to width and location) the vehicles will require to turn in the adjacent field via a new access and traverse the river via a newly constructed bridge. The existing access point is indicated by Figure 4.15 below while a plan showing Description of Path The abnormal load vehicles will approach the access point from the north on the B740. The swept path analysis indicates that the wheels of the blade transporter will remain within the confines of the carriageway until the vehicle turns into the field to the east. The swept path analysis also indicates that no over-sail outwith the confines of the carriageway will be required until the vehicle turning into the field area It is noted that a new access junction will be required to the north of the abnormal loads exit from the B740. This is to provide access to the new bridge structure for general construction traffic. Street Furniture requiring temporary removal A section of wall separating the road from the field will require temporary removal while it is anticipated that at least one telegraph pole will require to be temporarily removed. Temporary paving required A significant area of temporary paving will be required in the field to allow the vehicles to turn. Infringement on 3rd party land A large area of third party land will be required to the west of the carriageway to provide the turning area for the vehicles. 5. SUMMARY AND CONCLUSIONS Table 1 below summarises the main issues that have been highlighted within this report. Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 15/17

16 Table 1. Summary of Issues 5.2 Conclusion PINCH POINT TEMPORARY STREET FURNITURE REMOVAL TEMPORARY PAVING THIRD PARTY LAND It is considered that a technically feasible route to site exists for the transportation of abnormal loads and the following recommendations are made: * 7 No street furniture removal necessary. Removal of four road signs, two lighting columns and some shrubbery is required. Four road signs requiring temporary removal. Major mitigation scheme required. Removal of temporary boundary walls and telegraph poles, No street furniture removal necessary. No street furniture removal necessary. No temporary paving required. Small area of temporary paving required on central island. Large area of paving and some levelling of land required. A bypass facility across the field is required and temporary paving on entry to PP4. No temporary paving required. A section of temporary paving is required on the approach and the outside of the bend. No third party land infringement. No third party land infringement. No third party land infringement. Large area of third party land is required. No third party land infringement. Potential third party land required. Recommendations If the necessary mitigation measures are made then the route can be navigated by vehicles carrying wind turbine components to the proposed site; Police escort or Pilot car will be required to accompany abnormal loads in order to assist with traffic control and the control of oncoming traffic; It is recommended to have adequate warning signs implemented to warn other road users at critical points along the route; All hedges, shrubs, bushes, trees and overhanging branches along the nominated routes must be trimmed from within carriageway verges; Specific street furniture has been nominated in this report for removal to facilitate over-sailed and swept areas; Full carriageway widths must be available along the entirety of the route. Measures to remove parked vehicles must therefore be in place; Measures to assist the vehicle negotiating the kerbed changes in level at footways, roundabouts, pedestrian refuges etc. will be required; and Steel road plates may be required at locations where the vehicle overruns utility boxes or footways. 8 No street furniture removal necessary. No temporary paving required. No third party land infringement. Site Access Point A No street furniture removal necessary. Large area of temporary paving required. Area of third party land required. 9 No street furniture removal necessary. No temporary paving required. No third party land infringement. 10 One telegraph pole removal is required. No temporary paving required. Potential third party land required. 11 Large section of fence and two or three telegraph poles will need to be removed. Build-out onto the sloped grass bank on the inside of the bend is required Potential third party land required. Site Access Point B Section of wall and one telegraph pole requiring removal. Large area of temporary paving required. Large area of third party land required. *Structural assessment required Technical Appendix 12.1: Abnormal Loads Assessment Technical Appendix April 2017 Page 16/17

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18 Report Appendix A LOAD CONFIGURATIONS

19 Route 1 Vehicle Specification Blade Transporter A3 Mar '17 NTS SCT4104/I/R1/VS/01

20 Route 1 Vehicle Specification Tower Transporter A3 Mar '17 NTS SCT4104/I/R1/VS/01

21 Report Appendix B SWEPT PATH ANALYSIS

22 Over-sail Of Crash Barrier Marginal Over-sail Of Central Island Route 1 Pinch Point 1 Blade Transporter A3 Mar '17 1:1000 SCT4104/I/R1/001/A

23 Route 1 Pinch Point 1 Tower Transporter A3 Mar '17 1:1000 SCT4104/I/R1/001/B

24 Over-sail of footpath and verge Marginal over-run and significant over-sail of central island Marginal over-sail of verge Over-sail of footpath and verge Route 2 Pinch Point 2 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/002/A

25 Minor over-sail of central island Route 1 Pinch Point 2 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/002/B

26 Marginal over-sail of verge Significant over-sail and over-run of grassed area and cycle path Route 2 Pinch Point 3 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/003/A

27 Significant over-run and over-sail of grass area and cycle path Route 1 Pinch Point 3 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/003/B

28 Over-sail and over-run of grass banking and private gardens Over-run and over-sail of verge Route 2 Pinch Point 4 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/004/A

29 Over-sail of verge Over-sail and over-run of verge Over-run and over-sail of field Route 1 Pinch Point 4 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/004/B

30 Over-run of verge Over-run and over-sail of verge Significant over-run and over-run of field Route 2 Pinch Point 5 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/005/A

31 Over-run and over-sail of field Over-sail of verge Route 1 Pinch Point 5 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/005/B

32 Over-run and over-sail of grass verge Over-sail of fence and verge Route 2 Pinch Point 7 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/007/A

33 Marginal over-sail of fence and verge Route 1 Pinch Point 7 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/007/B

34 Over-sail of verge Route 2 Pinch Point 8 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/008A

35 Marginal over-sail of verge Route 1 Pinch Point 8 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/008/B

36 Over-sail From Rear Overhang Of Blade 60m Blade, 15m Overhang, 2.9m W Figure 4.8A - Junction Design - Access Point A General Layout, Swept Path Analysis & Visibility Splay R12.5m R53.0m LEGEND 22.0m New Carriageway Edge Type-1 Overrun Area Full Carriageway Construction 7.9m Proposed Fence to be installed on completion of construction R12.5m Proposed Gate to be installed on completion of construction 5.3m General Layout - A1 Swept Path Analysis - A1 Achievable Visibility Splay: 4.5m x 215m Achievable Visibility Splay: 4.5m x 150m - Varies Size - A3 - ZB - BF - ADV Visibility Splay - A1 This drawing is for preliminary purposes only and is subject to amendment during design development. UNDER NO CIRCUMSTANCES MUST THIS DRAWING BE USED FOR CONSTRUCTION PURPOSES.

37 Marginal over-sail of verge Route 2 Pinch Point 9 Blade Transporter A3 Mar '17 1:1000 SCT4104/I/R1/009/A

38 Route 1 Pinch Point 9 Tower Transporter A3 Mar '17 1:1000 SCT4104/I/R1/009/B

39 Marginal over-sail of verge Over-sail of verge Route 2 Pinch Point 10 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/0010/A

40 Marginal over-sail of verge Route 1 Pinch Point 10 Tower Transporter A3 Mar '17 1:1000 SCT4104/I/R1/0010/B

41 Over-sail of grass embankment Minor over-sail and over-run of grass verge Route 2 Pinch Point 11 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/011/A

42 Marginal over-sail of verge Marginal over-run and over-sail of verge Route 1 Pinch Point 11 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/011/B

43 Minor over-sail of verge Significant over-run and over-sail Route 2 Pinch Point 12 Blade Transporter A3 Mar '17 1:500 SCT4104/I/R1/012/A

44 Marginal over-sail of verge Route 1 Pinch Point 12 Tower Transporter A3 Mar '17 1:500 SCT4104/I/R1/012/B

45 R12.0m 6.2m 8.3m R12.0m B 740 Figure 4.8B - Junction Design - Access Point B General Layout, Swept Path Analysis & Visibility Splay Sheepfold LEGEND New Carriageway Edge 123.1m Achievable Visibility Splay: 4.5m x 215m Cattle Grid Type-1 Overrun Area Full Carriageway Construction Proposed Fence to be installed on completion of construction 32.0m Proposed Gate to be installed on completion of construction 57.8m General Layout - A1 Achievable Visibility Splay: 4.5m x 215m - Varies Size - A3 - ZB - BF - ADV Swept Path Analysis - A1 Visibility Splay - A1 This drawing is for preliminary purposes only and is subject to amendment during design development. UNDER NO CIRCUMSTANCES MUST THIS DRAWING BE USED FOR CONSTRUCTION PURPOSES. Crawick Water

46 Report Appendix C CRAWFORDJOHN MITIGATION SCHEME

47 Notes 1. Do not scale from this drawing. 2. All dimensions in metres unless stated otherwise. Key: - Location of pinch point 5 This drawing is the property of SYSTRA Limited and the information can only be reproduced with their prior permission. North Lowther Wind Farm - Vertical 1:100, Horizontal 1:500 Crawfordjohn Pinch Point Prelim Design Option 2 IC ADV A1 Aug ' Preliminary SCT4104/P/GL/02 -