ms. a sidgwick slr consulting limited... · mid suffolk district council high street, needham...

Mid Suffolk District Council

High Street, Needham Market, Ipswich, IP6 8DL Telephone: (01449) 724500 / Facsimile: (01449) 724627

www.midsuffolk.gov.uk

Suffolk Coastal District Council Melton Hill, Woodbridge, Suffolk, IP12 1AU

Telephone: (01394) 383789 / Facsimile: (01394) 385100 www.suffolkcoastal.gov.uk

Ms. A Sidgwick SLR Consulting Limited BY EMAIL

Please ask for: Mr. Elvin / Mr. Perkin

Direct line: 01449 724935 / 01502 523073

Fax number:

Your reference:

Our reference:

E-mail:

Please reply to:

7 December 2016

Dear Ms Sidgwick The East Anglia ONE Offshore Wind Farm Order 2014 Requirement 29 (1) Installation of Cable Ducts I refer to your email dated 2 November 2016. Mid Suffolk District Council and Suffolk Coastal District Council hereby discharge Requirement 29 (1) (b) in accordance with East Anglia ONE Offshore Windfarm Cable Method Statement (Document reference EA1-CON-R-IBR-021238, dated 2 November 2016). Yours sincerely

Michael Evans Strategic Director Babergh and Mid Suffolk District Councils

Philip Ridley Head of Planning & Coastal Management Suffolk Coastal and Waveney District Councils

CC Katherine Potts – Suffolk County Council

www.scottishpowerrenewables.com

East Anglia ONE OffshoreWindfarm

Cable Method StatementDCO Requirement 29 (1) (b)Final for Approval

ID: EA1-CON-R-IBR-021238

Created by / date: IEC / 28 Oct 2016Checked by / date: RM / 02 Nov 2016Approved by / date: PS / 02 Nov 2016

East Anglia ONE Offshore Windfarm November, 2016

Cable Method Statement

East Anglia ONE – EA1-CON-R-IBR-021238 Page 2

REVISION CONTROL

Revision and Approvals

Rev Date Reason for Issue Originated by Checked by Approved by

0 20/06/2016 Initial Draft MO JK DH

1 01/08/2016 Interim for Consultation IEC MC PS

2 02/11/2016 Final For Approval IEC RM PS




Table of contents

Abbreviations 4

1 Introduction 5

1.1 Project Overview 5

1.2 Purpose and Scope 5

2 Construction Overview 6

2.1 Cable Route and Working Width 6

2.2 Specialist Techniques 6

2.3 Construction Consolidation Sites 7

2.4 Construction Zones 8

3 Construction Methodology 9

3.1 Site Preparation 9

3.2 Site Enabling Works 10

3.3 Open Trench Duct Installation 11

3.4 Trenchless Duct Installation 13

3.5 Cable Installation 15

3.6 Reinstatement 16

4 Programme 17

4.1 Overview 17

4.2 Site Enabling Works Programme 17

4.3 Cable Civils Works Programme 19

4.4 Trenchless Works Programme 19

4.5 Cable Installation Programme 20

4.6 Re-instatement 21

FiguresFigure 1 Typical Trench Layout for EA ONE

Figure 2 Typical Trench Layout for EA THREE

Figure 3 Typical Trenchless Layout for Category 1 HDD

AppendicesAppendix 1 Onshore Cable Route Overview

Appendix 2 Typical Construction Cross Sections

Appendix 3 Construction Zones Plans




AbbreviationsAC Alternating Current

CCS Construction Consolidation Site

CCT Consents Compliance Team

DC Direct Current

DCO Development Consent Order

EA Environment Agency

EIA Environmental Impact Assessment

EMS Environmental Management System

ES Environmental Statement

FID Final Investment Decision

GIS Geographical Information System

HDD Horizontal Directional Drill

HSE Health Safety and Environment

LPA Local Planning Authority

MW Megawatts

SED Special Engineering Difficulty

SPR ScottishPower Renewables




1 Introduction1.1 Project Overview

1. East Anglia ONE Limited (EAOL) was awarded a Development Consent Order (DCO) by the Secretary of State; Department

of Energy and Climate Change (DECC) on June 17th 2014 for East Anglia ONE Offshore Wind Farm (EA ONE). The DCO

granted consent for the development of a 1200MW offshore windfarm and associated infrastructure.

2. In February 2015 EAOL secured a Contract for Difference (CfD) award to build a 714MW project and ScottishPower

Renewables announced its role in leading East Anglia ONE towards construction. In April 2015 EAOL submitted a non-

material change application to DECC to amend the consent from direct current (DC) technology to alternating current (AC).

In March 2016 DECC authorised the proposed change application and issued a Corrections and Amendments Order.

3. The onshore construction works associated with EA ONE comprise of the following, which is based on the AC technology

with an installed capacity of 714MW and transmission connection of 680MW:

A landfall site at Bawdsey, Suffolk.

Up to six underground cables, approx. 37km in length.

Up to four cable ducts for the East Anglia THREE projects.

An onshore substation located at Bramford next to existing National Grid infrastructure.

4. The scope of this document relates to the installation of cable ducts and underground cables along the onshore cable route

as part of the onshore construction works.

1.2 Purpose and Scope

5. This Cable Method Statement sets out the method and programme for installing cables ducts and cables as part of the EA

ONE onshore construction works. These works include the installation of cable ducts for proposed East Anglia THREE

project which will be installed alongside the cable ducts and cables for EA ONE and herein are referred to as the ‘onshore

cable works’.

6. This Cable Method Statement has been produced to fulfil DCO Requirement 29 (1) (b) which states:

29.—(1) Save in relation to plots 448 to 450, 453 to 454 and 457 to 471 in the book of

reference—

(a) all cable ducts forming part of the onshore connection works must be installed

simultaneously together with the onshore cables for the authorised project forming part of

the onshore connection works unless sub-paragraph (2) applies; and

(b) no stage of the connection works shall commence until a written method statement

showing the programme for laying the onshore cables for the authorised project and all

cable ducts as part of a single cable laying operation has for that stage been submitted to

and approved in writing by the relevant planning authority. The method statement must

include an implementation timetable for laying the cables for the authorised project and

all ducts and must be carried out as approved.

7. All works shall be in compliance with all documents produced to fulfil all other DCO Requirements, which include, but are not

limited to;

Ecological Management Plan (EA1-CON-F-GBE-008547);

Cable Landscape Management Plan (EA1-CON-R-IBR-010129);

Code of Construction Practice (EA1-CON-F-GBE-008547);

Archaeological Written Scheme of Investigation (EA1-CON-F-IBR-010138);

Fencing and Enclosures Plan (EA1-CON-R-IBR-009818); and

Highways and Access Improvements Plan (EA1-CON-R-IBR-009582).




2 Construction Overview2.1 Cable Route and Working Width

8. The onshore cable route comprises a 37km corridor between the Suffolk coast at Bawdsey and the substation at Bramford,

passing the northern side of Ipswich. The onshore cable works comprise the installation of electricity transmission cables and

ducts, between the landfall location at Bawdsey and the new substation station adjacent to the existing substation at

Bramford. A plan showing the overview of the onshore cable route is presented in Appendix 1. The majority of the route will

be constructed using trenching methods while in certain locations trenchless techniques will be used.

9. Construction activities will be undertaken within a temporarily fenced strip of land known as the working width. The working

width is determined by electrical and civil engineering considerations and allows for sufficient spacing between the cables

trenches to prevent the cables overheating, plus room for the associated temporary construction works i.e. spoil storage,

drainage, haul road, works areas for personnel and machinery. A figure showing typical cross sections of the working width is

presented in Appendix 2.

10. In accordance with the DCO the working width shall not exceed 55m, except at the horizontal directional drilling locations

specified in Requirement 10 part (6), where the working width is increased to allow for the requirements of the specialist

technique.

2.2 Specialist Techniques

11. The onshore cable route traverses a number of major transport networks and natural obstacles. To enable the installation of

the cable across these major features, specialist techniques are required, namely use of Horizontal Directional Drilling (HDD).

These key locations are listed below and are referred to as ‘Category 1’ HDD sites (locations shown in Appendix 1), in

accordance with the DCO Requirement 10, the working width at these areas is increased, to between 110m and 160m

depending on the location (see Table 2-1 for details), to accommodate the method of work:

Millers Wood

Network Rail tracks west of A14 and River Gipping

A14 Trunk Road

A12 Trunk Road

Network Rail tracks to the south of Woodbridge and Martlesham Creek

Kirton Creek

River Deben

Coastal Landfall, Bawdsey

12. These HDD sites will require additional equipment, storage and ancillary facilities to that required for the conventional open

trench installation methods in order to accommodate the drilling activities. As such, a specialist HDD compound will be set up

at each side of the HDD location to enable the specialist plant and materials to be delivered directly and to facilitate the

drilling activities.

13. In addition to the above major features, a number of other features have been identified where the conventional open cut

trenching technique is not appropriate. At these locations ‘trenchless’ methods will also to be implemented, which will

comprise of a smaller HDD or auger bore. These sites are referred to as ‘Category 2’ HDD/trenchless. As the features to be

crossed are less significant, they will not require any additional compounds and works will take place within the standard 55m

working width. Table 2-1 provides a list all the HDD / trenchless locations.




Table 2-1 HDD (Cat 1) / HDD (Cat 2) Trenchless Locations

Reference Category Location/ Feature Approximate

Length (m)

Max Width

(m)

HDD-01 Cat 1 Millers Wood off Bullen Lane 200 130

HDD-02 Cat 2 Somersham Watercourse 70 55

HDD-03 Cat 2 Pound Lane 60 55

HDD-04 Cat 1 River Gipping and Network

Rail track west of A14

385 130

HDD-05 Cat 1 A14 Trunk Road and Old

Ipswich Road

200 160

HDD-06 Cat 2 River Fynn 30 55

HDD-07 Cat 2 Lodge Road 60 25

HDD-08 Cat 1 A12 Trunk Road 165 120

HDD-09 Cat 2 Top Street 90 55

HDD-10 Cat 2 Sandy Lane 90 50

HDD-11 Cat 1 Martlesham Creek and

Network Rail tracks south of

Woodbridge

650 160

HDD-12 Cat 2 Waldringfield Road 70 55

HDD-13 Cat 2 Watercourse east Howe’s

Farm

50 55

HDD-14 Cat 1 Kirton Creek 550 110

HDD-15 Cat 2 Sewage works outfall

watercourse, south of Park

Lane

50 55

HDD-16 Cat 1 River Deben 700 55

HDD-17 Cat 2 Queen’s Fleet 70 55

HDD-18 Cat 1 Landfall, Bawdsey 1000 160

HDD-19 Cat 2 Bramford Road 60 55

HDD-20 Cat 2 Grundisburgh Road 50 55

2.3 Construction Consolidation Sites

14. All of the onshore cable works will be supported by nine Construction Consolidation Sites (CCSs) (referenced A to I), these

are construction compounds which will be utilised for welfare, site staff accommodation, parking, as well as providing secure

storage for materials, plant and equipment. The CCSs are categorised as Primary and Secondary, there are two Primary

CCSs; CCS B will be a designated storage and delivery facility and the main administrative compound and CCS E will be a

designated storage and delivery facility with designated office space. The remaining seven Secondary CCSs shall be for the

purpose of access, storage and deliveries. A list of the CCS locations is presented in Table 2-2 and the locations are shown

on the presented in the Appendix 1.




Table 2-2 Construction Consolidation Site Locations

CCS Ref CCS Type Address

A Secondary Bullen Lane, Bramford, Ipswich, Suffolk IP8

B Primary Paper Mill Lane, Claydon, Ipswich, Suffolk IP6 0AP

C Secondary Witnesham Road, Ipswich, Suffolk IP6

D Secondary Church Road, Ipswich, Suffolk IP6 9DS

E Primary Top Street, Martlesham, Suffolk IP12

F Secondary Woodbridge Road, Newbourne, Woodbridge, Suffolk IP12 4PA

G Secondary Park Lane, Ipswich, Suffolk IP10

H Secondary Sheepgate Lane, Ipswich, Suffolk IP10 0QZ

I Secondary Ferry Road, Woodbridge, Suffolk IP12 3AS

2.4 Construction Zones

15. For the purpose of construction the onshore cable works has been divided into eleven construction zones. The construction

zones are based on a combination of access controls and lock-out points, which are defined by the presence of natural

barriers or other constraints that will interrupt the continuity of access to the onshore cable route. These eleven construction

zones are the main basis of construction programme development. Table 2-3 lists the breakdown of these zones and

includes the corresponding Work Package Numbers (Work No.), referred to within the DCO and their locations are shown on

the plans presented in Appendix 3.

Table 2-3 Construction Zones

Zone DCO WorkNo.

From To ApproximateLength (m)

1 37E to 36 Substation Pound Lane 3930

2 36 to 35A Pound Lane East of Network Rail and RiverGipping HDD

835

3 34B to 33A East of Network Rail and RiverGipping HDD

East of A14/Old Ipswich RoadHDD

785

4 32 to 29 East of A14/Old Ipswich RoadHDD

East of Clopton Lane 6520

5 29 to 26 East of Clopton Lane West of River Lark 4870

6 25C to 21 West of River Lark North of Network Rail &Martlesham Creek HDD

3410

7 20 to 18 North of Network Rail &Martlesham Creek HDD

East of Waldringfield RoadCamp Site

3450

8 15 (part of) East of Waldringfield RoadCamp Site

South of Ipswich Road (HeathRoad)

410

9 17 to 15 South of Ipswich Road (HeathRoad)

North of Kirton Creek HDD 3190

10 14 to 8 North of Kirton Creek HDD West of River Deben HDD 4250

11 7B to 3B West of River Deben HDD Landfall 4900




3 Construction Methodology16. This section describes the construction methodology associated with the installation of the onshore cable works, these works

comprise of the following and a description of each is provided in the following sections:

Site Preparation;

Site Enabling Works;

Open Trench Duct Installation;

Trenchless Duct Installation (e.g. HDD);

Cable Installation; and

Reinstatement.

3.1 Site Preparation

17. The site preparation works comprise the following activities:

Highways Improvements;

Archaeology Mitigation Works; and

Vegetation Clearance.

18. The site preparation works will be undertaken prior to the commencement of the main construction works. A brief description

of each of the activities is provided in sections 3.1.1 to 3.1.3. All of these activities are covered by independent DCO

Requirements, detailed plans have been prepared to fulfil these requirements.

3.1.1 Highways Improvements

19. To facilitate safe access and egress for the onshore cable works a series of highways improvements are required which

require road alterations works to be completed prior to the main construction work commencing. Such improvements include

junction improvements and the installation of passing places. All identified highway improvement works will be completed

prior to the construction works commencing in the associated area to ensure the road network is suitable for construction

use.

20. Full details of the improvement works are presented in the Highways Improvements and Access Management Plan (EA1-

CON-R-IBR-009582), which has been produced to fulfil DCO Requirement 14 and 25 (c).

3.1.2 Archaeology Mitigation Works

21. An Archaeological Written Scheme of Investigation (WSI) (EA1-CON-F-IBR-010138) has been prepared to fulfil DCO

Requirement 18. The WSI identifies areas where a programme of archaeological investigation (evaluation, mitigation,

excavation, built heritage recording and watching brief) is required, and the measures which will be taken to protect, preserve

in situ or record any significant archaeological remains that may be found.

22. The programme of archaeological investigation works will be undertaken in accordance with the approved WSI in all

identified archaeological sensitive areas prior to the commencement of the main construction works. Further details provided

in the Archaeological Written Scheme of Investigation (EA1-CON-F-IBR-010138).

3.1.3 Vegetation Clearance

23. A Cable Landscape Management Plan (CLMP) (EA1-CON-R-IBR-010129) has been prepared to fulfil DCO Requirement 12.

The CLMP identifies the trees and hedgerows that will be removed along the onshore cable route to facilitate the construction

activities. In order to avoid any impact on potential breeding birds where possible vegetation clearance will be completed

outside the breeding bird season (March to September).

24. All vegetation clearance will be completed in accordance with the Cable Landscape Management Plan (EA1-CON-R-IBR-

010129). An Arboricultural Clerk of Works will be appointed to ensure that all tree works are undertaken to the required

standards.




3.2 Site Enabling Works

25. The site enabling works comprise the following activities:

Access improvements;

Construction of CCSs;

Preparation of working width (i.e. installation of fencing);

Topsoil stripping; and

Installation of the haul road.

26. A description of these activities, in sequence, is provided in sections 3.2.1 to 3.2.5. All temporary works associated with the

enabling works, will be continuously monitored and maintained throughout the construction period. Where required

maintenance and/or repairs of the haul road, fencing etc. will be undertaken.

3.2.1 Access Improvements

27. To facilitate safe access and egress for the onshore cable works a series of access improvements are required which include

the widening of existing entrancesand the installation of new bellmouths onto public roads. Full details of the improvement

works are presented in the Highways Improvements and Access Management Plan (EA1-CON-R-IBR-009582).

3.2.2 Construction of CCSs

28. The construction of the CCSs involves stripping of topsoil, importing and laying stone for the compound base and installing

cabins and welfare facilities. The two Primary CCSs (‘B’ and ‘E’) will be the first to be installed. Once these two main

compounds are installed, the Secondary CCSs will be installed to provide access points to allow the haul road construction to

start.

3.2.3 Preparation of Working Width

29. Temporary fencing and gateways will be erected along the boundary of the working width. The default fencing type will be a

basic type, e.g. post and rail or post and wire, visually defining the boundary of the working width. Where the boundary

interface requires a higher level of protection, for instance livestock fields or housing developments, then protective fencing

will be used. Signage and notices will be fixed along this boundary to inform members of the public of the works being

undertaken. Full details of the fencing to be installed are detailed in the Fencing and Enclosures Plan (EA1-CON-R-IBR-

009818).

30. High visibility signage and suitable protection will be installed to denote any third party utility crossings (such as gas pipelines

or overhead power lines). An Arboricultural Clerk of Works will be appointed during construction to oversee the erection of

fencing for the protection of trees and hedgerows that are to be retained.

3.2.4 Topsoil Stripping

31. Once the working width has been prepared, the remaining topsoil will be stripped from: the haul road location, trench areas

and subsoil storage areas, and then stored in a designated area within the working width (see typical cross section in

Appendix 2). Topsoil storage and management shall be compliant with the relevant standards and guidance as set out in the

Cable Landscape Management Plan (EA1-CON-R-IBR-010129), which includes but is not limited to:

Maximum storage heights of mounds: 2m for topsoil.

Topsoil to be stripped in the driest condition possible.

Use tracked equipment wherever possible to reduce compaction.

Confine movement of trucks or dumpers to designated temporary haul routes.

Do not incorporate vegetation into topsoil to be stored.

Do not strip soils during or after heavy rainfall or when there are pools if water on the surface.

Do not strip topsoil too deeply so that subsoil becomes incorporated, thereby reducing fertility.

Do not remove topsoil from below the spread of trees and hedgerows to be retained.

To prevent compaction of topsoil and subsoil during stockpiling, the stockpiles shall be formed by tipping in mounds

which shall not subsequently be tracked over by vehicles.

Stockpiles shall be kept free of pernicious weeds.




Topsoil and subsoil shall not be allowed to be mixed or cross contaminated with one another or any other unsuitable

materials.

No soils shall be stored within the Root Protection Area of trees or shrubs.

32. Topsoil shall be stored to one side of the working width, in such a way that it is not mixed with any subsoil. Storage time will

be minimised, to prevent the soil deteriorating in quality. Topsoil stripped from different fields will be stored separately, as will

soil from specific hedgerow banks or woodland strips.

3.2.5 Installation of Haul Road

33. A temporary haul road will be installed along the cable route between the CCS locations and access points onto the local

public roads. The haul road will installed for a width of 5.5m along a designated route, following the initial topsoil stripping.

The temporary haul road will be constructed working from the installed CCS locations in two directions, away from the CCS

and towards the adjacent CCS, along the onshore cable route following the initial topsoil stripping.

34. Temporary haul road construction will typically involve the placement of a depth of suitable imported stone material onto a

geotextile on existing subsoil. In order to reduce the volume of imported stone material, the preferred method of temporary

haul road construction will involve the improvement of the underlying conditions prior to the installation of the imported stone.

The methods will follow one of the following options to improve the bearing capacity of the sub-soil; the placement of a geo-

grid material or chemical stabilisation. The type of method used will depend on a number of factors including ground

conditions, programme and landowner requirements. In the event that the stabilisation cannot be achieved then the

temporary haul road will be constructed using the traditional method and be at an increased depth of imported stone.

35. In some special circumstances the temporary haul road may comprise a temporary “trackway”, this will only be the case

where the haul road is required only for a short period of time (i.e. weeks) at locations where through road access is not

required.

36. Temporary crossings at watercourses and drainage ditches will be installed where haul road access is required across such

features. The design of each crossing will have prior approval from the relevant drainage authority. Further details on

watercourse crossings are provided in the Watercourse Crossing Method Statement within the Code of Construction Practice

(EA1-CON-F-GBE-008547).

3.3 Open Trench Duct Installation

37. The open trenching method will be used for the installation of cable ducts along the majority of the onshore cable route. The

open trench method involves the excavation of a trench, using a suitably sized tracked excavator (or similar equipment),

followed by the installation of the cable ducts and then the backfilling of the trench. The ducts will be laid to a minimum depth

to the top of the cables of approximately 1.25m below ground level, unless a shallower depth is required to avoid existing

utilities. The ducts for EA ONE will be installed in two parallel trenches, each trench will contain three power cable ducts and

one fibre optic cable duct. Figure 1 below shows the typical content and layout of the ducts as installed in open trenches for

EA ONE, however the width of trench and spacing between them would vary depending on the depth of burial.




Figure 1 Typical Trench Layout for EA ONE

38. A further trench will be excavated in parallel to install three power cable ducts and a fibre optic duct for the future EA THREE

project. Figure 2 below shows the typical content and layout of the ducts to be installed for EA THREE. A cross section

showing EA ONE and EA THREE trenches are included in Appendix 2.

Figure 2 Typical Trench Layout for EA THREE

39. Once trenches are excavated the ducts will be installed within the trench. Ducting will be delivered to Primary CCS Sites and

then will be transferred, via the haul road or along the designated routes of the public road network, to the Secondary CCS

Sites for temporary storage or onto the required location on the onshore cable route. The ducts will be surrounded by a

thermally stable backfill of cement bound sand (CBS) or selected sands to ensure a known thermal conductivity around the




cables in order to maintain the cable rating (capacity to carry current). The trench will then be backfilled with the excavated

subsoil to working level.

40. Cable protection tiles would be fitted above the cables in each trench, featuring indented lettering warning of the danger of

electricity below. Plastic warning tape will be placed between the protection tiles and the ground surface, alerting future

excavators to the danger of the electric cables below.

41. The excavation of the trenches, duct installation and backfilling will be sequenced to minimise the amount of material

required to be moved to temporary storage or removed from site. The excavations will be progressed in stages, opening a

length of trench, installing the ducts then reinstating the trench with the same excavated subsoil back to working level. The

trenches for EA ONE will be installed first, starting with the cable trenches furthest away from the haul road, followed by the

trench for EA THREEs.

42. Particular care will be taken to ensure that the existing land drainage regime is not compromised as a result of the

construction. Pre-construction survey and local landowner information will be utilised to identify drainage locations, known

drainage features will be marked with appropriate wooden stakes along the line of the drain. Land drainage systems will be

maintained during construction, and be reinstated on completion. Temporary cut-off drains will be installed. These will be

installed parallel to the trenchs, before the start of construction, to intercept runoff from the stripped ground and stockpiled

soils before it reaches the trenches. These interceptor drains will discharge to local drainage ditches after passing through

treatment, as appropriate, to minimise sediment release. A further description of the control measures available to be used

are included in the Surface Water & Drainage Management Plan (EA1-GRD-F-IEC-007683).

3.4 Trenchless Duct Installation

43. Where, due to the existence of features, it is not possible to install the cable ducts using the open trench method, trenchless

installation techniques shall be used. Trenchless techniques require the use of specialist drilling and pulling equipment to

install the cable ducting, avoiding the need to dig an open trench. The most widely used of these techniques is HDD,

however other methods such as auger boring may be used where appropriate.

44. The locations where trenchless duct installation is required are defined in Table 2-1. Two main categories of trenchless

operation have been identified along the onshore cable route as Category 1 and Category 2 (see Section 2.2 for further

details). Category 1 trenchless locations are to address those sites with major features, corresponding to the locations

identified in the DCO Requirement 10. All of these crossings will be carried out using the HDD technique. The Category 2

trenchless crossings will use a combination of smaller HDD or auger boring, as appropriate to the location.

45. At each of these Category 1 HDD locations there will be an access installed to each side of the crossing, either using the haul

road or a new access created directly off the public road dependent on location and sufficient space allocated for a HDD

compound. These crossings have a wider corridor, as identified in the DCO, and their profiles are based on drilling a series of

a single bores for each cable. This is in order to meet the performance requirements of the circuits installed at greater depths.

Figure 3 shows typical cross-sections of the nine main cable ducts that are required for installation of ducts for EA ONE and

EA THREE, these are also presented in Appendix 4. Configurations will depend on length of the drills and how deep the drills

need to go. Flat cable formation is required for deeper drills, trefoil is required for shallower drills. The latter will be deployed

where ever possible so that minimum width and construction time is used.

46. Category 2 trenchless locations are required for crossings of lesser features or to reduce disruption and are shorter in length

to the Category 1 locations. The cable corridor working width at these trenchless locations is not widened beyond 55m and

access to these locations will be provided through the temporary haul road.




Figure 3 Typical Trenchless Layouts

47. The HDD method involves drilling under the obstacle at an appropriate depth using drill which can travel horizontally and

vertically. It requires two areas of hard standing to be installed at each side of the HDD crossing. The first will provide space

for the installation of the HDD rig site where the HDD enters the ground, and the second is at the exit point on the other side

of the crossing. The exit point is also typically the area where the ducting will be joined together into longer strings from

where it will be pulled through the bored hole, back towards the HDD rig site.

48. For a Category 1 HDD, a typical entry point site (area of approximately 75m x 100m), would be required to accommodate the

drilling rig, ancillary equipment, offices, working facilities and storage of drilling fluid, water and drill pipes. At the exit point of

each crossing, an area of approximately 30m x 25m would be required to accommodate the exit pit and mud storage tanks

and ducts for the crossing.

49. A typical HDD operation (Category 1 or Category 2) involves three distinct stages:

1. Drilling a pilot hole from the entry point to the exit point.

2. Reaming (widening) of the bore using special cutting heads, to enlarge the bore to the required diameter.

3. Pulling one or more ducts back through the reamed hole.

50. The addition of a drilling fluid, such as bentonite (a type of clay), is used to lubricate the drill head during cutting and also to

assist in the removal of waste spoil out of the hole, as it is widened (reamed). This procedure is repeated until the drilled

hole has reached the intended final diameter. The hole is typically cut to a size 1.5 times larger than the duct it has to carry.

This additional diameter is to allow the easier removal of drill cuttings and the installation of the duct, allowing for any soil

expansion that may occur during pulling. At each HDD site, the above process will be repeated until all of the required ducts

are installed at the crossing.

51. Once all the individual ducts have been installed, the drilling rig and associated plant and equipment will be removed. The

retained drilling mud and collected cuttings will be sampled, analysed and disposed of to an off-site waste disposal facility, in

accordance with the Waste Management Plan (EA1-GRD-F-IEC-007682).




52. Category 2 trenchless crossings will use a combination of smaller HDD method (as described above) and/or auger boring, as

appropriate to the location. The auger boring method requires the excavation of pits on either side of the feature to the depth

of the required installation. Continuous flights are rotated and simultaneously pushed into the ground at this depth. As the

bore progresses the ground is cut and the auger flights convey the material back into the work pit.

3.5 Cable Installation

53. Once the cable duct installation is completed then works will commence on the installation of the cable within the ducting

system. As the onshore cabling typically comes on drums of up to 2,000m in length, jointing bays will be required along the

cable route to join the sections of cable together. These jointing bays, approximately 10m long x 5m wide x 5m deep, will be

constructed at regular intervals along the onshore cable route to allow cable pulling and jointing at a later stage. The joint bay

will be excavated, a concrete poured floor will be created and concrete or brick walls will be installed. The bay will be topped

with concrete slabs which will be covered with subsoil to a depth of 1.1m.

54. Access to the joint bays will be required during operation for routine integrity testing. Access will take the form of an

inspection pit with a manhole cover which will be visible at the surface.

55. Associated with each of the joint bays will be an area of temporary hard-standing suitable to safely accommodate cable

drums and pulling equipment. These areas will be constructed using imported stone or using temporary “trackway”, which

would then be used at different locations along the route.

56. Cables will be delivered to the respective CCSs for secure storage and handling. The cable drums will be lifted from the

delivery trailer onto a hard standing for temporary secure storage. From the CCSs, the cables will be transferred, along the

haul road, by tractor and cable drum trailer to the corresponding joint bays when required for pulling operations.

57. The cable pulling system will consist of a steel bond attached to the cable end and then to a powered winching system, with

free spinning cable rollers placed along the bottom of the joint bay up to the end of the cable duct. Other variants of cable

pulling systems can be used, which could include the use of motorised rollers or tracked caterpillar drives to push the cable

forwards, as it is pulled from the opposite end.

58. The cable drum will be placed on a raised spindle mounted on a hydraulic cable trailer. The cable will then be pulled from the

drum into the trench on the pre-installed rollers, and once drawn through will leave the sealed ends in each joint bay ready for

jointing to previous and successive cable lengths.

59. Temporary weather-proof structures (‘tents’) will be erected over each joint bay when the construction team are ready for

cable jointing to commence. This is to provide a dry and clean atmosphere to carry out jointing tasks to the required quality.

Artificial lighting and heating will also be required, should seasonal and weather conditions dictate.

60. On completion of the cable installation and jointing works, the joint bay structure will be left in situ and the land around them

reinstated leaving access to the inspection pit used for testing of circuits and commissioning works. On completion of testing

and commissioning works area above the joint bays will be backfilled and the ground fully reinstated with the exception of the

surface manholes.

61. The onshore cable route will be marked with marker posts at key locations such as field boundaries and main river crossings.

These will be visible from the ground and all marker posts will be located to minimise interference with agricultural activities.

62. The cable installation will continue throughout the route, potentially with simultaneous installation at several locations,

depending on progress and programme as detailed in Section 4.




3.6 Reinstatement

63. After the completion of cable installation, testing and commissioning, the reinstatement works will commence, which will

comprise:

Removal of all temporary infrastructure including the haul road and associated infrastructure (e.g. flume crossings,

temporary bridges).

Topsoil will be re-instated along the working width. This will be graded, levelled and seeded where required in

accordance with the Cable Landscape Management Plan (EA1-CON-R-IBR-021236).

Hedgerows and trees will be replanted in line with Cable Landscape Management Plan during the first appropriate

planting season following site restoration.

CCS and HDD compounds will be removed and reinstated to match original profiles.

Temporary fencing will be removed and affected ground reinstated.

All temporary signage associated with traffic routes will be removed.

64. All public roads will be reinstated in line with New Roads and Street Works Act 1991 Specification for the Reinstatement of

Openings in Highways.




4 Programme4.1 Overview

65. The main construction works for the onshore cable route are planned to take place over two years between March 2017 and

February 2019. The works will be completed in four packages, with a contractor being appointed to undertake each package;

Site Enabling Works (as detailed in Section 3.1 and reinstatement works).

Cable Civil Works (duct installation via open trench method).

Trenchless Works (duct installation via trenchless method e.g. HDD).

Cable Installation.

66. As indicated in section 3.1 some site preparation activities will be undertaken prior to the start of the main construction works.

These works are programmed to commence from December 2016.

67. A summary of the overall main construction works programme is shown in Table 4-1, on completion of the construction

works, commissioning works will continue until full operation. Further details on each package of works are provided in the

following sections, which include an anticipated breakdown of the programme into the construction zones (as detailed in 2.4

and shown in Appendix 2). Please note the programme presented does not account for potential unforeseen events, such as

extreme weather, which may result in amendments.

Table 4-1 Programme Overview

2017 2018 2019

Work Package 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2

Site Enabling

Cable Civils Works

Trenchless Works

Cable Installation

Reinstatement

Key Construction Works

Maintenance works

4.2 Site Enabling Works Programme

68. Enabling works will commence by establishment of the Primary CCS sites (‘B’ and ‘E’), followed by the Secondary CCSs. It is

anticipated that the establishment of the Secondary CCSs will commence with CCS A and CCS G and then followed by C, I,

F, D and H. The sequence of secondary CCSs set up will be determined by the requirements of the cable civil works and

HDD contactor and may be subject to change. It is anticipated to all CCSs will be established by July 2017.

69. The preparation of the working width (i.e. the fencing off of the area) will start at the same time as the nearby CCS

establishment or shortly after the CCS is established. It is proposed that preparation works start at four to six different

locations along the cable route using individual teams. The preparation of the working width is programmed to be completed

by July 2017 to facilitate the next stage of construction works.

70. Top soil stripping and storage will commence following the preparation of the working width. It is anticipated that top soil

stripping will commence at four to six different locations and will be completed by July 2017.

71. Installation of haul road will follow at the areas where the preparation works and top soil stripping has been completed.

However, the productivity rate per linear metre of haul road installation will be lower than the working width preparation and

top soil stripping and it is programmed that haul road installation for the entire onshore cable route would continue until

August 2017.




72. There are restrictions on when works can take place for Zone 8 due to its use as a campsite. Works can only take place

within this zone between October to January, however only limited enabling works are required within this zone.

73. Following the completion of the enabling works, maintenance works will be ongoing throughout construction, until

reinstatement works commence on completion of the cable installation.

74. The programme for the Site Enabling Works per construction zone is shown in Table 4-2. Please note the programme

presented does not account for potential unforeseen events, such as extreme weather, which may result in amendments.

Table 4-2 Site Enabling Works Programme

Key Construction Works

Maintenance works

2017 2018

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

Primary CCS Sites

Secondary CCS Sites

Zones 1

Zone 2

Zone 3

Zone 4

Zone 5

Zone 6

Zones 7

Zones 8

Zones 9

Zone 10

Zone 11

Maintenance




4.3 Cable Civils Works Programme

75. Cable civil works, comprising of the duct installation using the open trench method, is expected to take around nine months. It

is proposed to work consecutively at multiple locations, with the potential for works to be undertaken at up to six locations at

one time.

76. The anticipated programme for the Cable Civil Works per construction zone is shown in Table 4-3.

Table 4-3 Cable Civil Works Programme

2017 2018

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

Zone 1

Zone 2

Zone 3

Zone 4

Zone 5

Zone 6

Zone 7

Zone 8

Zone 9

Zone 10

Zone 11

4.4 Trenchless Works Programme

77. The Category 1 HDD installation works are programmed to start in March 2017 with preliminary site activities (establihsing

compounds, special rig set up, etc.). For the Category 2 HDD/trenchless works two to four smaller rigs will work on site at

different locations at the same time, to ensure that all of the HDD works are completed by December 2017.

78. For the eight Category 1 HDDs along the onshore cable route it is expected that three HDD rigs will be set up at different

locations in order to ensure the work is complete by December 2017. However, if in the event that the works need to

accelerated more HDD rigs may be utilised.

79. The anticipated programme for the trenchless works are shown in Table 4-4.




Table 4-4 Trenchless Works Programme

2017 2018

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

HDD-01 Miller’s WoodWork No 37A (Zone 1)

HDD-04 River Gipping &RailwayWork No. 35A (Zone 2)

HDD-05 Old Ipswich Road& A14Work No. 33A (Zone 3)

HDD-08 A12Work No. 24 (Zone 6)

HDD-11 Railway &Martlesham CreekWork No. 19 (Zone 7)

HDD-14 Kirton CreekWork No. 14 (Zone 10)

HDD-16 River DebenWork No. 7A (Zone 11)

HDD-18 LandfallWork No. 3B (Zone 11)

Category 2 Trenchless

4.5 Cable Installation Programme

80. Cable installation works is programmed to start in October 2017 in up to two different locations in the construction zones

where the duct installation works has been completed (both HDDs and open trenching works), starting at Zone 1 and

continuing sequentially along the cable route. In the event that that works needs to be accelerated, there is a potential for

work to commence at up to four locations at one time.

81. No cable installation works are required in Zone 8, as no joint bays will be located in this area. Works in Zone 1 will be

ongoing throughout 2018 to coordinate with the installation of the cables at the substation. The programming of works in

Zone 11 is dependent on the installation of the offshore cable and therefore does not follow the sequencing and works are

required throughout the year.

82. Cable installation works are programmed to be completed by December 2018. Table 4-5 shows an anticipated programme

for the cable installation works across the construction zones.




Table 4-5 Cable Installation Programme

2017 2018

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

Zone 1

Zone 2

Zone 3

Zone 4

Zone 5

Zone 6

Zone 7

Zone 8 (no works required)

Zone 9

Zone 10

Zone 11

Testing

4.6 Re-instatement

83. Partial top soil reinstatement works on the top of trenches will start in October 2017 at the locations where the cable

installation is completed. However, the full top soil reinstatement will be completed following removal of the haul road which is

programmed to be done by February 2019.

84. Following completion of cable installation and initial testing of the cable, the haul road will be removed for majority of the

cable route and top soil reinstatement and fencing removal will follow.

85. Some elements of the temporary works may need to remain in place until the start of Windfarm operation at the landfall

where access is required for commissioning works associated within the offshore cable.

86. With the exception of the landfall site, the cable route corridor will be fully reinstated between October and February 2019

and all CCS locations returned to original landscaping.




Appendix 1 Onshore Cable RouteOverview

HDD-03

HDD-01

HDD-04HDD-05

HDD-06

HDD-07

HDD-08

HDD-11

HDD-12

HDD-13

HDD-14

HDD-15HDD-16

HDD-17 HDD-18

HDD-20

HDD-10

HDD-19

HDD-02

HDD-09

CCSD -Bealings

Road

CCSB -Witnesham

Road

CCSA -BullenLane

CCSC -Paper

Mill Lane

CCSF -Woodbridge

Road

CCSG -Park Road

CCSE - TopStreet

CCSH -RiverDeben

CCSE- TopStreet

CCSI -Ferry Road

Landfall

610000

610000

620000

620000

630000

630000

2400

00

2400

00

2500

00

2500

00

1 234

567 8 9 10 1113 14

15 1617 18 19

20 21 22 24 26 272829 30

31

3233

34 35363738

394041

43 4446

474849 50

51 52 53

5455

575859 60

pw:\\FGDPRODPWV8.euro.iberdrola.local:UKRENEW\Documents\UK%20Offshore\3%20-%20PROJECTS\EA1%20Grid%20Package\03%20ONSHORE%20CABLE\02%20ENGINEERING%20DESIGN\01%20Technical%20Documentation\07%20GIS\01%20Drawings\

1:42,000

¯

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ISSUE DRAWNDATE CHKD APPD

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COORDINATE SYSTEM PROJECTION

© Crown Copyright 2016. All rights reserved. Ordnance Survey Licence 0100031673.

1 of 1

0 2,000 4,000 m

OSGB 1936BNG TRANSVERSE MERCATOR

METRE

DRAFT FOR COMMENT

EA ONE ONSHORE CABLE

ONSHORE CONSTRUCTION WORK OVERVIEW

EA1-GRD-DG-IEC-021702 Rev 0A

LEGEND

Note:This map has been produced to the latest known information at the time of issue, and has been produced for your information only.Please consult with the SPR GIS team to ensure the content is still current before using the information contained on this map.To the fullest extent permitted by law, we accept no responsibility or liability (whether in contract, tort (including negligence) or otherwise in respect of any errors or omissions in the information contained in the map and shall not be liable for any loss, damage or expense caused by such errors or omissions.

0A DRAFT FOR COMMENT25/08/16

EA1 DCO Boundary

Compound Area

HDD Zone

Horizontal Directional Drill (HDD) Compound Area




Appendix 2 Typical Construction CrossSections

1000 1000 1000 7000 1000 2000 MIN.5000 2000 2000 5500 2000 5000 1000 4000 1000 1000 1000

FENCE

GL

TEMP DRAIN

SUBSOILSTOCKPILE

TEMP DRAIN1750

1750

TEMPORARYACCESS ROAD

44500 CONSTRUCTION SWATHE

EA3

TOPSOILSTOCKPILE

TEMPORARY FOOTWAY

1000 1000 1000 7000 1000 2000 MIN. 5000 MIN.5000 2000 2000 4000 1000 1000 1000

SUBSOILSTOCKPILE

1750

1750

44500 CONSTRUCTION SWATHE

FENCE

GLEA1CC1

EA1CC2

TEMP DRAIN

FENCE

GL

FENCE

GL

TOPSOILSTOCKPILE

1000 1000 1000 2000

TEMP DRAIN TEMP DRAIN

TEMP DRAIN TEMP DRAIN

VIEW FROM SHORE LANDING TOWARDS SUBSTATIONS OPTION 1

TEMPORARY FOOTWAYEA3

TEMPORARYACCESS ROAD

1500 12000 6000 3500 3750 3750 3500 9000 1500

1500 12000 6000 6000 3500 3750 3750 6500 1500

VIEW FROM SHORE LANDING TOWARDS SUBSTATIONS OPTION 2

26500 TOPSOIL STRIP

21130 PERMANENT EASEMENT

NOTES:1- PASSING PLACES EACH 250 m.(FIG.1)2- TURN ARROUND AREAS EACH 750m. (FIG.2)3- "V" BUCKET MAY BE USED (SEE PHOTO)

30.0°

26500 TOPSOIL STRIP

12630 PERMANENT EASEMENT

"V" BUCKET

2000

0

1000

0

10000

ROAD

ROAD

FIGURE 1 FIGURE 2

30.0°

EA1CC1

EA1CC2

2500

1000 1000

30.0°

30.0°

30.0° 30.0°

5500

43 5 6 7 8 9 1021 11 12

43 5 6 7 8 9 1021 11 12

C

B

A

D

E

F

G

H

C

B

A

D

E

F

G

H

A2Contractors Drg. No. : Size:

Prepared Reviewed Approved

Date of First Issue:

Project:

Drg. No.: Rev:

All rights reserved. Total or partial reproduction of this drawing without authorisation of the proprietor is prohibited.

Client:

Contractor:

Scale:

Drg. Title:

Rev. Date Reason / Description of changes.Prepared Reviewed Approved

Sheet:

Next:

Location:

Status Stamp:

Status Stamp:

EAST ANGLIA

BAWDSEY TO BRAMFORD

CONSTRUCTION SWATHE

TYPICAL CROSS SECTION

EA1-GRD-E-IEC-0078831- 0

1:100IMFE GRAT FEDO

15-07-2016

EXCAVATED MATERIAL USED FORBACKFILLING AFTER TREATMENT IFNECESSARY

TILING AS PER NTGSCABLE PROTECTIVE COVERS

103/110mm UPVC PILOT DUCT WITH 2 No.30/35mm HDPE SUB DUCT FOR FO(GREEN uPVV)

WARNING TAPE

DTS CABLE IN 38/42mm PVC DUCT

PVC DUCT 188/200mm DUCT COLORS FORPOWER CABLES AND ECC (RED uPVC)

5000 mmMINIMUM CIRCUIT SEPARATION

200

560

80 80

7575

575

mm

1175

mm

Min

imum

cabl

e de

pth

100

Min

imun

cab

le d

epth

to th

eca

ble

top

1250

mm

20

20

5000 mmMINIMUM CIRCUIT SEPARATION1500

75

250

EXCAVATED MATERIAL USED FORBACKFILLING AFTER TREATMENT IFNECESSARY

WARNING TAPE


RED U-PVC DUCTS 250 OD /237 ID

DUCTS SURROUNDED BY CBS

103/110mm GREEN UPVC PILOT DUCT WITH2 No 30/35mm HDPE SUBDUCT FOR FO

700

100

75

Min.350(See Note 9)

175 175

Min

imun

cab

le d

epth

from

the

grou

nd to

the

duct

top

1250

mm

1125

mm

MIN

1800

mm

MIN

EXTRA DUCT

DC POLE 2

DC POLE 1675m

m

75

250EXCAVATED MATERIAL USED FORBACKFILLING AFTER TREATMENT IFNECESSARY

WARNING TAPE


RED U-PVC DUCTS 250 OD /237 ID

DUCTS SURROUNDED BY CBS

103/110mm GREEN UPVC PILOT DUCT WITH2 No 30/35mm HDPE SUBDUCT FOR FO

700

100

75

Min.350(See Note 9)

175 175

Min

imun

cab

le d

epth

from

the

grou

nd to

the

duct

top

1250

mm

EXTRA DUCT

DC POLE 2

DC POLE 1

43 5 6 7 8 9 1021 11 12

43 5 6 7 8 9 1021 11 12

C

B

A

D

E

F

G

H

C

B

A

D

E

F

G

H

A2Contractors Drg. No. : Size:

Prepared Reviewed Approved

Date of First Issue:

Project:

Drg. No.: Rev:

All rights reserved. Total or partial reproduction of this drawing without authorisation of the proprietor is prohibited.

Client:

Contractor:

Scale:

Drg. Title:

Rev. Date Reason / Description of changes.Prepared Reviewed Approved

Sheet:

Next:

Location:

Status Stamp:

Status Stamp:

EAST ANGLIA

BAWDSEY TO BRAMFORD

TYPICAL CROSS SECTION OF DC CABLE TRENCH

EA1-GRD-D-IB-0013021- 0

1:15IMFE GRAT FEDO

15/02/2016




Appendix 3 Construction Zones Plans

Zone 3Zone 2

Zone 1

34B

34B

35A

41

37C

37B

35D

35C35B

33C33B

36

39A

37A

37E

34A

37D

37D

38

39

35C

33A

609000

609000

609200

609200

609400

609400

609600

609600

609800

609800

610000

610000

610200

610200

610400

610400

610600

610600

610800

610800

611000

611000

611200

611200

611400

611400

611600

611600

611800

611800

612000

612000

612200

612200

612400

612400

612600

612600

612800

612800

613000

613000

613200

613200

2456

00

2456

00

2458

00

2458

00

2460

00

2460

00

2462

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2462

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EA1-GRD-DG-IEC-008156 Rev 1

LEGEND

1

EA1 Construction CorridorEA1 DCO BoundaryHorizontal Directional Drill (HDD)Compound AreasCompound AreaConstruction Zones

WorkPlan

33A

33B

33C

34A

34B

35A

35B

35C

35D

36

37A

37B

37C

37D

37E

38

39

39A

41

1 FOR INFORMATION31/10/16

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Zone 4Zone 3

34B

34B

35A

35C35B

33C

33B

34A

32

33A

612200

612200

612400

612400

612600

612600

612800

612800

613000

613000

613200

613200

613400

613400

613600

613600

613800

613800

614000

614000

614200

614200

614400

614400

614600

614600

614800

614800

615000

615000

615200

615200

615400

615400

615600

615600

615800

615800

616000

616000

616200

616200

616400

616400

616600

616600

2466

00

2466

00

2468

00

2468

00

2470

00

2470

00

2472

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2472

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2474

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2498

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2500

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2500

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2502

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2504

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2504

00


1:7,500

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of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

2


WorkPlan

32

33A

33B

33C

34A

34B

35A

35B

35C


PREP

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X323769

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Zone 5Zone 4

30B

31

30A

29

32

616200

616200

616400

616400

616600

616600

616800

616800

617000

617000

617200

617200

617400

617400

617600

617600

617800

617800

618000

618000

618200

618200

618400

618400

618600

618600

618800

618800

619000

619000

619200

619200

619400

619400

619600

619600

619800

619800

620000

620000

620200

620200

620400

620400

2466

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2466

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2468

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2470

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2470

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METRE

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CONSTRUCTION ZONES


LEGEND

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EA1 Construction CorridorEA1 DCO BoundaryCompound AreaConstruction Zones

WorkPlan

29

30A

30B

31

32


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Zone 6

Zone 5

Zone 5

26

25C

28A

28B

25A

2729

619800

619800

620000

620000

620200

620200

620400

620400

620600

620600

620800

620800

621000

621000

621200

621200

621400

621400

621600

621600

621800

621800

622000

622000

622200

622200

622400

622400

622600

622600

622800

622800

623000

623000

623200

623200

623400

623400

623600

623600

623800

623800

624000

624000

2466

00

2466

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2468

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2468

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2470

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2470

00

2472

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2472

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2474

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2474

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2476

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2478

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2480

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2488

00

2488

00

2490

00

2490

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2492

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2492

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2502

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2504

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1:7,500

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ORIGINAL PLOT SIZE


A1

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DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

4

EA1 Construction CorridorEA1 DCO BoundaryCompound AreaConstruction Zones

WorkPlan

25A

25C

26

27

28A

28B

29


PREP

SF CD GRAT FEDO

X323769

For Information

Zone 7

Zone 6

19

21

26

22A

20

22B

25C

25B

23A

21A

23C

18

25A

23B

23B

24 24

24

24A

24A

24A

623000

623000

623200

623200

623400

623400

623600

623600

623800

623800

624000

624000

624200

624200

624400

624400

624600

624600

624800

624800

625000

625000

625200

625200

625400

625400

625600

625600

625800

625800

626000

626000

626200

626200

626400

626400

626600

626600

626800

626800

627000

627000

627200

627200

627400

627400

2466

00

2466

00

2468

00

2468

00

2470

00

2470

00

2472

00

2472

00

2474

00

2474

00

2476

00

2476

00

2478

00

2478

00

2480

00

2480

00

2482

00

2482

00

2484

00

2484

00

2486

00

2486

00

2488

00

2488

00

2490

00

2490

00

2492

00

2492

00

2494

00

2494

00

2496

00

2496

00

2498

00

2498

00

2500

00

2500

00

2502

00

2502

00

2504

00

2504

00


1:7,500

¯



ORIGINAL PLOT SIZE


A1

REVISION NOTES

DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

5


WorkPlan

18

19

20

21

21A

22A

22B

23A

23B

23C

24

24A

25A

25B

25C

26


PREP

SF CD GRAT FEDO

X323769

For Information

Zone 9

Zone 8

Zone 719

16

20

17

15

18

624000

624000

624200

624200

624400

624400

624600

624600

624800

624800

625000

625000

625200

625200

625400

625400

625600

625600

625800

625800

626000

626000

626200

626200

626400

626400

626600

626600

626800

626800

627000

627000

627200

627200

627400

627400

627600

627600

627800

627800

628000

628000

628200

628200

628400

628400

2434

00

2434

00

2436

00

2436

00

2438

00

2438

00

2440

00

2440

00

2442

00

2442

00

2444

00

2444

00

2446

00

2446

00

2448

00

2448

00

2450

00

2450

00

2452

00

2452

00

2454

00

2454

00

2456

00

2456

00

2458

00

2458

00

2460

00

2460

00

2462

00

2462

00

2464

00

2464

00

2466

00

2466

00

2468

00

2468

00

2470

00

2470

00

2472

00

2472

00


1:7,500

¯



ORIGINAL PLOT SIZE


A1

REVISION NOTES

DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

6


WorkPlan

15

16

17

18

19

20


PREP

SF CD GRAT FEDO

X323769

For Information

Zone 10

Zone 9

14

16

10B

11

13

12

17

10A

15

624400

624400

624600

624600

624800

624800

625000

625000

625200

625200

625400

625400

625600

625600

625800

625800

626000

626000

626200

626200

626400

626400

626600

626600

626800

626800

627000

627000

627200

627200

627400

627400

627600

627600

627800

627800

628000

628000

628200

628200

628400

628400

628600

628600

628800

628800

2402

00

2402

00

2404

00

2404

00

2406

00

2406

00

2408

00

2408

00

2410

00

2410

00

2412

00

2412

00

2414

00

2414

00

2416

00

2416

00

2418

00

2418

00

2420

00

2420

00

2422

00

2422

00

2424

00

2424

00

2426

00

2426

00

2428

00

2428

00

2430

00

2430

00

2432

00

2432

00

2434

00

2434

00

2436

00

2436

00

2438

00

2438

00

2440

00

2440

00


1:7,500

¯



ORIGINAL PLOT SIZE


A1

REVISION NOTES

DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

7


WorkPlan

10A

10B

11

12

13

14

15

16

17


PREP

SF CD GRAT FEDO

X323769

For Information

Zone 11

Zone 10

9

14

10B

11

8

13

12

10A

5

7B

7A

627200

627200

627400

627400

627600

627600

627800

627800

628000

628000

628200

628200

628400

628400

628600

628600

628800

628800

629000

629000

629200

629200

629400

629400

629600

629600

629800

629800

630000

630000

630200

630200

630400

630400

630600

630600

630800

630800

631000

631000

631200

631200

631400

631400

631600

631600

2376

00

2376

00

2378

00

2378

00

2380

00

2380

00

2382

00

2382

00

2384

00

2384

00

2386

00

2386

00

2388

00

2388

00

2390

00

2390

00

2392

00

2392

00

2394

00

2394

00

2396

00

2396

00

2398

00

2398

00

2400

00

2400

00

2402

00

2402

00

2404

00

2404

00

2406

00

2406

00

2408

00

2408

00

2410

00

2410

00

2412

00

2412

00

2414

00

2414

00


1:7,500

¯



ORIGINAL PLOT SIZE


A1

REVISION NOTES

DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

8


WorkPlan

10A

10B

11

12

13

14

5

7A

7B

8

9


PREP

SF CD GRAT FEDO

X323769

For Information

Zone 11

Zone 11

3A

4

6

3C

5

7B

7A

3B

631000

631000

631200

631200

631400

631400

631600

631600

631800

631800

632000

632000

632200

632200

632400

632400

632600

632600

632800

632800

633000

633000

633200

633200

633400

633400

633600

633600

633800

633800

634000

634000

634200

634200

634400

634400

634600

634600

634800

634800

635000

635000

635200

635200

635400

635400

2380

00

2380

00

2382

00

2382

00

2384

00

2384

00

2386

00

2386

00

2388

00

2388

00

2390

00

2390

00

2392

00

2392

00

2394

00

2394

00

2396

00

2396

00

2398

00

2398

00

2400

00

2400

00

2402

00

2402

00

2404

00

2404

00

2406

00

2406

00

2408

00

2408

00

2410

00

2410

00

2412

00

2412

00

2414

00

2414

00

2416

00

2416

00

2418

00

2418

00


1:7,500

¯



ORIGINAL PLOT SIZE


A1

REVISION NOTES

DRAWING TITLE

PROJECT TITLE

SCALE

DATUM

DRAWING NUMBER

UNITS

PURPOSE

DRAWING ID



of 9

0 250 500 m


METRE

FOR INFORMATION


CONSTRUCTION ZONES


LEGEND

9


WorkPlan

3A

3B

3C

4

5

6

7A

7B


PREP

SF CD GRAT FEDO

X323769

For Information