Farigaig Substation Traffic Management Plan - SSEN · PDF fileThe substation works consist of the formation of an access road, substation platform, HV Compound and Control Building

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Farigaig SubstationTraffic Management Plan

TRAFFIC MANAGEMENT PLAN

FARIGAIG 275 / 132 kV SUBSTATION

14055

02/06/15

14055_TMP




REVISION/APPROVAL/AMENDMENT RECORD

Revision Author Date Signature Comments

00 Seamus Donnelly 12.05.15 As per revision status on drawing

01 Seamus Donnelly 15.05.15 SHET comments added

02 Seamus Donnelly 02.06.15 THC Mitigation & Comments


Project Ref No: 14055 Issue No: 02 Issue Date: 02.06.15 Page: 3 of 20



Approval, Distribution, Monitoring, Review

Approval

Date Print Signature

Approved by Project Lead Seamus Donnelly

Approved by Off Site Line Manager*

Stephen Piggin

Customer Ian Parry

*This signature is required for the first issue only prior to work commencing. Thereafter the Project Lead can approve changes which shall be recorded in the review section

Distribution of Traffic Management Plan

Distribution of the TMP will be controlled & managed via BB document management system, all copies will be issued to recipients under a document transmittal & reissued when the plan is revised.

Record of TMP Monitoring Reviews and Amendments

Date Detail of Review/Amendment By Whom Action Taken* Signed

*Confirm that all relevant changes to the BMS have been incorporated in the review





Contents

1. INTRODUCTION ......................................................................................................................5

2. PROJECT DESCRIPTION............................................................................................................6

3. WORK PROGRAMME ..............................................................................................................7

4. SITE HOURS ............................................................................................................................7

5. CONSTRUCTION ACCESS MANAGEMENT .................................................................................7

6. SITE ACCESS............................................................................................................................8

7. PROJECTED VEHICLE MOVEMENTS..........................................................................................9

8. CONTROLLING VEHICLE MOVEMENTS ...................................................................................10

9. PROTECTING PEDESTRIANS AND VULNERABLE ROAD USERS .................................................11

10. PUBLIC ROAD IMPROVEMENTS ...........................................................................................11

11. SPOIL REMOVAL AND CONCRETE DELIVERIES ......................................................................14

12. COMMUNITY LIAISON.........................................................................................................15

Appendices

APPENDIX A – SITE LAYOUT AND ACCESS PLAN

APPENDIX B - SITE COMPOUNDS AND ACCESS PLANS

APPENDIX C – WATERMAN TRANSPORT ASSESSMENT A10





1. INTRODUCTION

The purpose of this document is to describe all measures to be implemented by Balfour Beatty in order to manage and minimise the impact of construction traffic related to construction of the Farigaig 275 /132 kV substation, near Torness, Highland.

This document is specifically required by Condition 2 of planning permission 14/00071/FUL, which states:

“No development shall commence until a Traffic Management Plan (TMP) has been submitted to, and approved by, the Planning Authority in consultation with the relevant Roads Authority(s). The TMP must include:

(1) A description of all measures to be implemented by the developer in order to manage traffic during the construction phase (incl. routeing strategies), with any additional or temporary signage and traffic control undertaken by a recognised SQ traffic management consultant. Included in this TMP

(2) The identification and delivery of all upgrades to the public road network to ensure that it is to a standard capable of accommodating construction-related traffic (including the formation or improvement of any junctions leading from the site to the public road) to the satisfaction of the Roads Authority, including:

a. A route assessment report for abnormal loads, including swept path analysis and details of the movement of any street furniture, any traffic management measures and any upgrades and mitigation measures as necessary. Section 10 of this TMP, Section 4 and Appendix B of Waterman’sTransport Assessment (included as Appendix C).

b. An assessment of the capacity of existing bridges and other structures along the construction access route(s) to cater for all construction traffic, with upgrades and mitigation measures proposed as necessary. Section 4 of Waterman’s Transport Assessment (included as Appendix C).

c. A videoed trial run to confirm the ability of the local road network to cater for transformer delivery. Three weeks notice of this trial run must be made to the local Roads Authority who must be in attendance. To be organised with THC prior to transformer delivery.

(3) Drainage and wheel washing measures to ensure water and debris are prevented from discharging from the site onto the public road. Included in this TMP

(4) A concluded agreement in accordance with Section 96 of the Roads (Scotland) Act 1984 under which the developer is responsible for the repair of any damage to the public road network that can reasonably be attributed to construction related traffic. As part of this agreement, pre-start and post-construction road condition surveys must be carried out by the Developer, to the satisfaction of the Roads Authority. For the avoidance of doubt a Road Bond will be required as part of the Section 96 Agreement. To be concluded separately by SHE Transmission / THC.

Thereafter the TMP will be implemented as agreed”

This TMP will be reviewed periodically or following any significant change to the programme of works and re-issued to The Highland Council. A project wide TMP will be developed by SHE Transmission once construction programmes for the other elements of the wider Project are developed. This will ensure co-





ordination of vehicle movements is undertaken to minimise impacts on the local road network and Community.

2. PROJECT DESCRIPTION

Farigaig 275 / 132 kV substation, near Torness will connect two new windfarms to the transmission network. Dunmaglass Windfarm and Corriegarth Windfarm will connect into Farigaig via underground cables and overhead wood pole lines.

The site details are:

Project Name and Address

Farigaig 275/132kV Substation Off the B862Torness, HighlandsScotlandIV2 6UGUK Grid Reference NH 57201 27778

A site and access layout plan is included in Appendix A.

The substation forms one part of a wider project, which includes:

Farigaig 275 / 132 kV SubstationThe substation works consist of the formation of an access road, substation platform, HV Compound and Control Building along with foundations for HV structures and two Supergrid 275 / 132 kV Transformers.

Dunmaglass 132 kV Wood Pole Overhead LineApproximately 6.5 km of new 132 kV wood pole overhead transmission line from Dunmaglass Wind Farm on-site substation to a point to the west of Cairn Ardachy (NH 58364, 25703),

Corriegarth 132 kV Wood Pole Overhead LineApproximately 14 km of new 132 kV wood pole overhead transmission line from Corriegarth Wind Farm on-site substation to a point to the west of Cairn Ardachy (NH 58364, 25703)

Foyers – Knocknagael 275 kV Overhead Transmission LineIn order to facilitate connection to the existing transmission network, two new steel lattice towers shall be erected (by others) on the adjacent Foyers to Knocknagael 275 kV overhead line in order to divert through the substation. Two existing towers and a section of overhead line will then be removed.

132 kV Underground CablesOther works associated with the wider connection, includes where the connection would convert to underground cable; and where the connection would also convert to underground cable.





Public Road Improvements (PRI’s)In order to ensure the local road network is suitable for the HGV construction traffic and abnormal load deliveries a number of public road improvements have been agreed with The Highland Council. These will be carried out in two phases and are detailed in Waterman’s Transport Assessment in Appendix C.

3. WORK PROGRAMME

Site Start: 04 May 2015

Bulk Earthworks / platform / Phase 1 PRI’s: May ‘15 - November ‘15

Plant foundations: December ‘15 - February ‘16

SGT Bunds: November ’15 – February ‘16

SGT Deliveries: February ’16 – March ‘16

Control Building Construction: December ’15 – March ‘16

Equipment Installation and Wiring: February ’16 – May ‘16

Commissioning: May ’16 - July ‘16

Energisation: August ‘16

Phase 2 PRI’s: By November ‘16

4. SITE HOURS

Construction activities for the substation will be undertaken in accordance with Condition 20 of the substation planning permission, which states:

“The normal working hours during the construction phase within the site shall be Monday – Friday between 0800 hours and 1800 hours and on Saturdays between 0800 hours and 1300 hours, with no work being carried out on Sundays or public holidays. Any work requiring to be conducted outwith these times shall only commence with prior written approval of the Council.”

Public road mitigation works are to be undertaken in two phases, as agreed with The Highland Council, and will last approximately 30 days each. Working hours will be the same as for the substation unless otherwise required. The precise timings and details of these works are still to be finalised with The Highland Council.

5. CONSTRUCTION ACCESS MANAGEMENT

The construction access route to the substation has been agreed with The Highland Council and is from the A9 via the B851 and B862 only (see Figure 1 below).

In accordance with Condition 21 construction traffic shall not use the U1004 (Torness – Inverfarigaig) road.

Contractors, delivery companies and visitors will be made aware of the approved access route (to and from the site) and of on-site restrictions in the following way:

• Contractors – Will be provided with the Farigaig Detailed Delivery document at contract placement, which details the approved route, working hours and on site restrictions.





• Delivery Companies - Will be provided with the Farigaig Detailed Delivery document at order placement, which details the approved route, working hours and on site restrictions. Unplanned /un-notified deliveries shall be turned away from site.

• Visitors - Will be provided with the Farigaig Detailed Delivery document at notification of their visit, which details the approved route, working hours and on site restrictions.

The construction site is off the public road and will not unduly impede the day to day service operations to the local community. As part of the planning consent for the works construction traffic route to and from site is restricted thus certain routes are not available for use. This measure will ensure normal service to domestic and commercial residents will run without absolute impedance from the development works.

Figure 1: Farigaig Site Access Route

6. SITE ACCESS

Access to the site will be via a new bellmouth created on the B862, north east of the junction with the U1004 (Appendix A and Appendix E of Waterman’s Transport Assessment) and a new access road (Appendix A).

To facilitate construction an initial temporary site office compound will be established at the bellmouth (Appendix B1) with the main construction compound being established adjacent to the platform (Appendix B2). The proposed timings of these are as follows:

• Temporary Compound: 18/05/15 – 18/11/15

• Main Site Compound: 18/11/15 – Completion





A turning head will be maintained during the earthworks period when the temporary compound is in use. Upon completion of the substation platform a one way system will be implemented on the platform allowing a forward driving direction to be maintained at all times.

Additional delivery laydown will be provided off the road, on SSE owned substation land.

7. PROJECTED VEHICLE MOVEMENTS

Projected vehicle movements during the civils and electrical construction phases are detailed in Table 3.1 and 3.2 of Waterman’s Transport Assessment (included as Appendix C) and are included below. These are based on the current programme and may be subject to minor change depending on how works progress. This TMP will be reviewed periodically, updated with any changes and re-issued to The Highland Council. Progress on construction and regular updates on traffic and road improvements will be communicated to the Community through the Community Liaison Group (see Section 12).





The following plant is anticipated to be operating on site during construction:

Plant on Site1. 20t Tracked Excavators 2 No.

2. 25t Articulated Dumpers 3 No.

3. Tracked Dozer 1 No.

4. Drill Rigs & Compressor 2 No.

5. 13t Tracked Excavators 2 No.

6. Wheeled Excavator 1 No.

7. 9t Dumpers 2 No.

8. Misc. Rollers, Tractors, smaller Excavators 4 No.

9. MEWP 3 No.

10. Telehandler 3 No.

8. CONTROLLING VEHICLE MOVEMENTS

Co-ordinating and controlling delivery vehicles

The Principle Contractor shall compile and review 4 week lookaheads weekly throughout the site works. The 4 week lookahead will display all contracted works and will be used to coordinate all upcoming deliveries to ensure no waiting. All deliveries must be organised through the Principle Contractor’s Site Manager and SHE Transmission Project Manager. The Farigaig security guard will hold a delivery notification list and will turn away any unannounced or un-notified deliveries under a zero tolerance procedure.

Site induction will include the procedure for deliveries and access / egress at the site. Upon arriving at site all delivery vehicles will also be provided with a prompt card detailing the current environmental, archaeological and site access/egress procedures.





The Farigaig Substation Principle Contractor Project Manager also manages Corriegarth & Dunmaglass substation. In addition to this, the OHL and Tower Works project teams will be invited to monthly Farigaig meetings to further coordinate local movements.

Staff Parking

Sufficient contractor parking will be provided directly alongside the welfare cabins at the temporary compound and main compound (when constructed).

9. PROTECTING PEDESTRIANS AND VULNERABLE ROAD USERS

Public access safety advice signage will be installed around the site area. All excavations shall be surrounded by barriers.

All construction works will be undertaken with strict adherence to the current CDM regulations, works will be well sign posted and a road improvement works are being undertaken to mitigate against risk to road users from road traffic associated from the development. A fully compliant traffic management system will be in place for all road works.

Wheel wash facilities will be installed and roads will be monitored to ensure they are kept clear of mud.

10. PUBLIC ROAD IMPROVEMENTS

Agreed improvement works to the public roads will be undertaken in two phases during the project, as detailed in Table 10.1 below, and Sections 4 and 6 of Waterman’s Transport Assessment (included in Appendix C). Revised mitigation drawings (Rev A02) incorporating comments from The Highland Council are included in Appendix C of Waterman’s Transport Assessment. These will be subject to detailed design under a Licence from The Highland Council which will be applied for in due course by SHE Transmission. It is not expected that any footpaths will be diverted during these works.

The improvement works will not require the erection of any scaffolding or other structures over the public roads.

There may be measures taken to protect utility services such as the BT cable sited along the B861. Anyworks which require the modification of utility services will be specified at the detailed design stage and in full consultation with the relevant service provider and The Highland Council.

Other work to be undertaken on or over a public road is associated with the overhead lines and will involve the stringing of conductors over the B851 near the junction with the B862. Detailed design for this aspect of the wider project is still to be undertaken and agreed with The Highland Council.





Table 10.1 – Schedule of Mitigation

Phase Timescale Description Drawings Location

1 Start on or after 1-Sep-15 and Completion before 30-Nov-15 or the date of start of HGV activity on public roads or the date of abnormal load deliveries (whichever is the earliest)

1. Widening of full length of existing road

(Farigaig to Calanour) to a minimum of 4m

by addition of widened strip up to binder

course (build-up of 290mm sub-base on

suitable formation, 100mm base, 60mm

binder) level with top of existing surfacing.

(Sections already greater than 4m wide will

not be widened).

2. Widening of full length of the B851 existing

road (Dunmaglass to Calanour) to 4m

minimum. Build-up as 1 above.

3. Widening of all sections of the B851 road

(Daviot to Dunlichity) to 4m minimum that

are shown by the videoed road trial

(delivered in accordance with consent

condition 2 (ii) c) to require such a

widening. Build-up as 1 above.

4. Upgrades to existing passing places shown

on the drawings to 15/15/15 x 6.5 m wide

(where possible). (Reduced size may be

accepted at the discretion and prior

acceptance of the Council where space is

constrained). The equivalent of at least 12

of that size of passing place will be

provided.

5. Curve widening at all bends as agreed with

The Highland Council and shown on

accepted drawings. The equivalent of at

least 4 sections of curve widening will be

provided.

6. Construction of new site access at Farigaig

including twin tracking of B862 for full

length of visibility splay in each direction,

with minimum 2.5% crossfall/camber

provided.

7. Construction of new or cleaning out of

existing drainage systems to ensure the

integrity of the road drainage system.

CIV-16756-RT-95-2001 A01

2002 A01

2003 A01

2004 A01

2005 A01

2006 A01

1001 A01

1002 A01

1003 A01

1004 A01

CIV-16756-RT-95-4001 A01

Farigaig substation to 160m north of Calanour junction

Farigaig substation entrance





8. Protection and diversion, if needed , of BT

cabling and other equipment of the

statutory undertakers to permit 1.1, 1.2,

1.3, 1.4 and 1.5 works.

9. Installation of new cattle grid (to be

supplied by The Highland Council for uplift

at its Diriebught depot) at Torness.

10. Drawings and specifications of all works to

be prepared by SSE and submitted to The

Highland Council for acceptance at least 8

weeks prior to construction.

Phase Timescale Description Drawings Location

2 Start after completion of HGV deliveries and Completion before 1-Nov-16

1. Overlay of 40mm surface course to section

of road in 1.1 above. Regulating, as

required, will be laid on existing surfacing

to ensure a minimum of 2.5% crossfall or

camber on the finished surface. White

lining on both sides to define 3.5m

carriageway width.

2. Widening of existing road (c 900m) by

widening strip (build-up of 250mm sub-

base on suitable formation, 100mm base,

60mm binder) and full width overlay of

40mm surface course. Road width 6.5m

blacktop, with 6m between lines. Laid to

minimum 2.5% camber/crossfall.

3. Extension of culvert structures within

length of road improvement, including

provision of safety fencing.

4. Fencing and utilities diversions for 2.2/2.3.

5. Realign and widen Calanour junction to

approx. 200m on each leg. Construction to

be as 2.2 above. The Highland Council will

either contribute the cost of the B862

west/Errogie leg or The Highland Council

will design and construct the junction

improvement and SSE will contribute the

cost of the north (Torness) and east

(Dunmaglass) legs. (Programme and

responsibilities to be agreed).

CIV-16756-RT-95-1001 A01

1002 A01

1003 A01

1004 A01

CIV-16756-RT-95-3001 A01

Farigaig substation to 160m north of Calanour junction

Sections of single track road between substation south-west of Dunmaglass entrance and Calanour

Calanour Junction





6. Cost of utilities diversions for 2.5.

7. Minor localised improvements to other

sections of the B851/B862 road to Farigaig

which are required to mitigate against or

repair local damage – as agreed between

SSE and the Council

8. Drawings and specifications of all works to

be prepared by SSE and submitted to The

Highland Council for acceptance prior to

construction.

Traffic Management

Signage, traffic management, material storage diversions and any temporary structures required to complete public road improvements will be specified in the detailed design and agreed with The Highland Council. The TMP will then be updated to include a full schedule of PRI’s and traffic management arrangements.

The following traffic management arrangements are proposed, subject to final design:

• Construction of the bellmouth access for the new substation will require a partial road closure, involving traffic light controls and a reduced speed limit to protect the workforce. SHE Transmissiondoes not intend to install a traffic diversion as part of the substation access.

• For road widening, passing places and structures works, SHE Transmission will endeavour to undertake the works with minimal disruption to public traffic within the bounds of best practice and the safety of construction staff. Works will be designed to allow for partial closures under temporary traffic lights and reduced speed limits wherever safe and practical to do so. Full closures with diversions are likely to be required along narrow sections of the B862, with consideration for night time or timed works (e.g. avoiding peak use times) to reduce impacts on road users.

11. SPOIL REMOVAL AND CONCRETE DELIVERIES

The number of potential HGV movements has been reduced through careful design of the substation platform and landscaping. All site won materials will be re-used in the construction of the platform, access road and landscaping bunds.

Concrete will not be batched on site and so deliveries will commence following the completion of the platform formation in November 2015. Vehicles will enter the site through the main site access road and travel immediately to the platform, away from the public road.





12. COMMUNITY LIAISON

SHE Transmission’s Community Liaison Officer is Neil Anderson. A Community Liaison Group has been set up which will meet periodically to provide updates on the construction programme, vehicle movements and public road improvements. Representatives from SHE Transmission and Balfour Beatty will attend. Contact details for key project staff will be provided to the Community in order for any complaints or information requests to be actioned.





APPENDICES

APPENDIX A – SITE LAYOUT AND ACCESS PLAN

APPENDIX B - SITE COMPOUNDS AND ACCESS PLANS

APPENDIX C – WATERMAN TRANSPORT ASSESSMENT A10





Appendix A - Site Layout and Access Plan





Appendix B1 – Temporary Site Compound




Farigaig SubstationProject Management Plan

Appendix B2 – Platform and Main Construction Compound




Farigaig SubstationProject Management Plan

Appendix C – Waterman Transport Assessment

Documents

Farigaig Substation Traffic Management Plan - SSEN · PDF fileThe substation works consist of the formation of an access road, substation platform, HV Compound and Control Building