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description
Woolley Hill Wind Farm
CONDITION 31 CONSTRUCTION METHODSTATEMENT FOR WOOLLEY HILL WIND FARM,
ELLINGTON
Appeal Decision APP/H0520/A/11/2158702
1001741FUL
Date of Approval 23rd March 2012
Site of ProposedDevelopment:
LAND EAST OF WHITLEATHER LODGE, WOOLLEY HILL,ELLINGTON
Description of Proposal: ERECTION OF 4 THREE BLADED WIND TURBINES, UP TOA HEIGHT OF 130.5 METRES, AND ASSOCIATEDELECTRICITY TRANSFORMERS, UNDERGROUNDCABLING, TWO NEW ACCESSES TO THE SITE AND NEWBRIDGE, TRACKS, HARDSTANDINGS, CONTROLBUILDING, SUBSTATION COMPOUND, MET ANDCOMMUNICATIONS MAST FOR A PERIOD OF 25 YEARS;TEMPORARY WORKS TO INCLUDE CONSTRUCTIONCOMPOUNDS LAY DOWN AREA AND 2 ANEMOMETRYMASTS.
Applicant:Address:
RES UK & Ireland LimitedBeaufort CourtEgg Farm LaneKings LangleyHertsWD4 8LR
Document Reference: 02341-003667 Issue: 01 - Approved
CONTENTS
1.0 INTRODUCTION...............................................................................................1
2.0 PROJECT DESCRIPTION.....................................................................................1
3.0 PLANNING CONDITIONS.....................................................................................1
3.1 Conditions of Consent 1
3.2 Non-Material Amendment 5
3.3 Design Basis 5
4.0 CONSTRUCTION PHILOSOPHY AND GENERAL WORKS.................................................6
4.1 Timescale 6
4.2 Environmental Management 7
4.3 Flood Risk Assessment 9
4.4 Site Won Materials 9
4.5 Spoil Management 9
4.6 Traffic Management 10
4.7 Reinstatement of Construction Areas 10
4.8 Community Liaison 10
4.9 Health and Safety Management 10
5.0 CONSTRUCTION METHOD ................................................................................ 11
5.1 Temporary Construction Compounds and Site Fencing 11
5.2 Site Entrances 11
5.3 Site Tracks 12
5.4 Bridge 14
5.5 Crane Hardstandings 15
5.6 Turbine Foundations 16
5.7 Turbine and Turbine Transformer Erection 17
5.8 Cable Trenching Works 18
5.9 Substation Compound and RES Control Building 19
5.10 Grid Connection 20
5.11 Anemometry & Communication masts 21
6.0 DECOMMISSIONING METHOD............................................................................. 22
6.1 Site Access Tracks & Temporary Hardstanding Areas 22
6.2 Wind turbines 22
6.3 Turbine Foundations 22
6.4 Electrical Equipment 23
7.0 RECORDS .................................................................................................... 23
Document Reference: 02341-003667 Issue: 01 - Approved
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1.0 INTRODUCTION
This Construction Method Statement (CMS) is submitted by RES UK & Ireland Ltd (RES). The
principal objective of this document is to provide information on the methodologies to
construct and decommission Woolley Hill Wind Farm, to assist in discharging the pre-
construction planning conditions (Appeal Ref: APP/H0520/A/11/2158702).
At the time of preparing this CMS, RES were yet to appoint a wind turbine manufacturer or
contractors to undertake the electrical or civil engineering works. The contractor(s) appointed
to construct the project will prepare detailed method statements to construct the works.
These detailed method statements will incorporate the details in this outline CMS.
The construction methodologies described in this CMS have been developed in accordance
with relevant local and national design standards, guidelines, regulations and publications and
with due regard to avoiding, minimising and mitigating adverse environmental impacts.
2.0 PROJECT DESCRIPTION
The proposed Woolley Hill Wind Farm is made up of the following elements:
Installation of four wind turbines with a maximum height to blade tip of 130.5 m
including an external transformer at each turbine;
Construction of approximately 2.0 km of new access track and the upgrade of
approximately 1.1 km of existing access track;
Construction of associated infrastructure including an on-site substation, crane
hardstandings, electrical connection cables and a permanent met mast;
Provision of two temporary site calibration and power performance masts; and
Provision of two temporary construction compounds during the construction period.
3.0 PLANNING CONDITIONS
3.1 Conditions of Consent
Consent was received on the 23rd
March 2012 to construct and operate the Woolley Hill Wind
Farm wind powered electricity generating station subject to condition compliance. For ease of
reference, the sections of this document which relate to specific Planning Conditions are
included in Table 1.
RES acknowledges that unless otherwise agreed with Huntingdonshire District Council through
the CMS approval process, the development shall be carried out strictly in accordance with
the approved plans and conditions.
Document Reference: 02341-003667 Issue: 01 - Approved
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Table 1 - Woolley Hill Wind Farm Planning Conditions and Relevant Supporting Information
No. Planning Condition Relevant CMS
Section
1 The development hereby permitted shall begin not later than 5 years from the date of this decision. (23 March 2012) 4.1.1
3
The permission hereby granted shall expire no later than 25 years from the date when electrical power is first exported from
any of the wind turbines to the electricity grid network, excluding electricity exported during initial testing and
commissioning (First Export Date). Written confirmation of the First Export Date shall be provided to the Local Planning
Authority no later than one calendar month after the event.
4.1.1
4
Not later than 12 months before the expiry of this permission, a decommissioning and site restoration scheme shall be
submitted for the written approval of the Local Planning Authority. The scheme shall make provision for the removal of the
wind turbines and the associated above ground equipment and foundations to a depth of at least one metre below finished
ground level. The scheme shall include the management and timing of any works; a traffic management plan to address likely
traffic impact issues during the decommissioning period; an environmental management plan to include details of measures
to be taken during the decommissioning period to protect wildlife and habitats; identification of access routes; location of
material laydown areas; restoration measures; and a programme of implementation. The approved scheme shall be fully
implemented within 24 months of the expiry of this permission.
4.1.1
5
If any of the turbines hereby permitted fails to produce electricity for supply to the grid for a continuous period of 6 months,
a scheme shall be submitted to the Local Planning Authority for its written approval within 3 months of the end of that 6
month period for the repair or removal of the relevant turbine. Where repairs or replacements are required the scheme shall
include a proposed programme of remedial works. Where removal of the relevant turbine is required the scheme shall include
a method statement and timetable for the dismantling and removal of the relevant turbine and associated above ground
works and foundations to a depth of at least one metre below finished ground level; and a method statement and timetable
for any necessary restoration works following removal of the turbine. The relevant scheme shall thereafter be implemented
in accordance with the approved details and timetable.
4.1.1
6
Construction work shall only take place between the hours of 07:00 19:00 on Monday to Friday inclusive and 08:00 13:00
hours on Saturdays, with no construction work on a Sunday or Public Holiday. Outside these hours, works at the site shall be
limited to emergency works and dust suppression. The Local Planning Authority shall be informed in writing of emergency
works within 3 working days of occurrence. Where turbine erection has started, emergency work includes any construction
work necessary to make the turbine safe.
4.1.2
7
The delivery of any construction materials or equipment for the construction of the development, other than turbine blades,
nacelles and towers, shall be restricted to the hours of 07:00 19:00 on Monday to Friday inclusive and 08:00 13:00 hours on
Saturdays with no such deliveries on a Sunday or Public Holiday unless otherwise approved in writing by the Local Planning
Authority having been given a minimum of 7 working days written notice of the proposed delivery.
4.1.2
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8
The turbines shall have a semi matt finish and be a pale grey colour. Prior to the erection of any turbine, its exact
specification of finish and colour along with details of dimensions, finish and colour of any external transformer units and the
proposed meteorological and communications masts shall be submitted to and approved in writing by the Local Planning
Authority. No name, sign, symbol or logo shall be displayed on any external surfaces of the turbines or any external
transformer units or the masts other than those required to meet statutory requirements. The development shall be carried
out as approved and thereafter be retained in accordance with the approved details.
5.7.1
9
The overall height of the wind turbines shall not exceed 130.5 metres to the tip of the blades when the turbine blade is in the
vertical position as measured from natural ground conditions immediately adjacent to the turbine base. The hub height of the
wind turbines shall be between 77 metres and 87 metres.
5.7.1
10 All wind turbine blades shall rotate in the same direction. 5.7.1
11
There shall be no permanent illumination on the site other than a passive infra-red-operated external door light for the
substation building door to allow safe access; temporary lighting required during the construction period or during
maintenance; or emergency lighting; and infra-red lighting required by Condition 23.
4.2.3 and 5.7.1
12
Construction of the substation building and the associated substation compound and parking area shall not commence until
details of the external appearance and materials to be used, together with details of surface and foul water drainage, have
been submitted to and approved in writing by the Local Planning Authority. The development shall be constructed in
accordance with the approved details.
5.9.1
13 All cabling between turbines and between the turbines and substation shall be laid underground. 5.8.1
30The development shall only be carried out in accordance with the approved Flood Risk Assessment (February 2011) submitted
in Appendix 3.1 of the Supplementary Environmental Information.4.3
31
Development shall not be begun until a construction method statement has been submitted to and approved in writing by the
Local Planning Authority. The construction method statement shall set out details of all on-site construction works; post-
construction reinstatement; drainage; mitigation; and other restoration, together with details of their timetabling. It shall
include details of, and measures to secure:-
-
(a) the phasing of construction works; 4.1
(b)the formation of the temporary construction compound and the temporary enabling works construction compound; the
temporary laydown area; and the temporary anemometry masts;5.1
(c) dust management and suppression; 4.2.4
(d) cleaning of site entrances, facilities for wheel washing and cleaning the adjacent public highway; 5.2
(e)pollution control, including the protection of water courses and ground water; subsoil surface water drainage; bunding of fuel
storage areas; sewage and foul water drainage and disposal; and emergency procedures and pollution response plans;4.2.2 and 5.9.1
(f) temporary site illumination during the construction period; 4.2.3
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(g)the methods to be adopted to reduce the effects of noise occurring during the construction period to the lowest practicable
levels and in accordance with BS 5228: Noise control on construction and open sites;4.2.1
(h) storage of materials and disposal of surplus materials; 4.5
(i)the construction of the access into the site, the erection of any entrance gates and the creation and maintenance of
associated visibility splays;5.2
(j) access tracks and other areas of hardstanding; 5.3 and 5.5
(k) the construction of the crane pads; 5.5
(l) the carrying out of foundation works; 5.6
(m) method of working cable trenches; 5.8
(n) the erection of the meteorological and communications masts; 5.11
(o) watercourse crossings; 4.2.1
(p) soils storage and handling; 4.5
(q) post-construction restoration/reinstatement of the working areas; 6.0
(r)the sheeting of all heavy goods vehicles construction materials to, or spoil from, the site to prevent spillage or deposit of any
materials on the highway;4.2.1
(s) any works to the public highway including temporary widening and/or replacement of street furniture; 4.6
(t)
a traffic management plan including access and egress arrangements for abnormal loads and heavy goods vehicles; pre and
post construction surveys of the slip road at junction 20 of the A14 (T) and Maltings Lane, from the east bound on-road at
junction 20 to the site entrance, and a programme and methodology for any repairs as a consequence of any damage caused
by construction traffic following the completion of construction; and a local signage scheme; and
4.6
(u) restricted access to the skew bridge by way of a removable barrier. 5.4
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3.2 Non-Material Amendment
During the development of detailed designs for the construction of the wind farm it became
apparent that improvements could be made through small changes in the layout of
infrastructure, to help minimise the quantities of earthworks required and improve health and
safety during construction. A Non-Material Amendment (NMA) was thus applied for and
approved in February 2013, refer to Annex 1 for details of the approval and description of
changes to the design incorporated in the NMA.
3.3 Design Basis
RES has employed a mix of internal specialists and external consultants to develop and
validate an appropriate design associated with the site specific conditions for Woolley Hill
Wind Farm.
The following parties were used in the preparation of this method statement:
McCloy Consulting (Drainage design)
Waterman Transport & Development Ltd (Site Access and Bridge design)
Mott MacDonald (Substation design)
RSK Environment Ltd (Geotechnical Investigations)
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4.0 CONSTRUCTION PHILOSOPHY AND GENERAL WORKS
Woolley Hill Wind Farm will be constructed in accordance with the Environmental Statement
2010, the Supplementary Environmental Information 2011 and the Non-material Amendment
2013 prepared during the development stage of the project.
Throughout the development of project, the overarching design philosophy has been to ensure
the design:
minimises extent of infrastructure;
avoids sensitive habitats;
minimises environmental impacts; and
maximises health and safety.
Where appropriate and practicable, local plant and materials will be used in order to
maximise the benefit of the wind farm project to the local community.
4.1 Timescale
4.1.1 Wind Farm Operation
In accordance with Planning Condition 1, the development will commence before the
expiration of 5 years from the date of the consent.
In accordance with Planning Condition 3, the permission for the operation of the Wind Farm is
for a period not exceeding 25 years from the date when electrical power is first exported from
any of the wind turbines to the electricity grid network, excluding electricity exported during
initial testing and commissioning.
In accordance with Planning Condition 4, within 24 months of the end of the period of
consent pursuant to Planning Condition 3, those parts of the Development requiring
decommissioning and restoration in accordance with the conditions of the consent will be
removed and the land restored, in accordance with the decommissioning of the scheme and
detailed restoration and aftercare required by Planning Condition 4.
In accordance with Planning Condition 5, if an installed and commissioned turbine fails to
produce electricity for supply to the grid for a continuous period of 6 months, a scheme will be
submitted to Huntingdonshire District Council for its written approval within 3 months of the
end of that 6 month period for the repair or removal of the relevant turbine.
4.1.2 Wind Farm Construction Hours
In accordance with Planning Condition 6, construction work will only take place between the
hours of 07:00 19:00 on Monday to Friday inclusive and 08:00 13:00 hours on
Saturdays. No construction work will take place on a Sunday or Public Holiday. Outside these
hours, works at the site will be limited to emergency works and dust suppression. The Local
Planning Authority will be informed in writing of emergency works within 3 working days of
occurrence. Where turbine erection has started, emergency work includes any construction
work necessary to make the turbine safe.
In accordance with Planning Condition 7, the delivery of any construction materials or
equipment for the construction of the development, other than turbine blades, nacelles and
towers, will be restricted to the hours of 07:00 19:00 on Monday to Friday inclusive and 08:00
13:00 hours on Saturdays with no deliveries on Sundays or Public Holidays.
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If any works are required outside these times, written details will be provided and agreed with
the Local Planning Authority prior to commencing.
Table 2 highlights the projected key dates and timescale for construction activities.
Table 2 - Outline Project Programme
TaskJul-
12
Aug-
13
Sep-
13
Oct-
13
Nov-
13
Dec-
13
Jan-
14
Feb-
14
Mar-
14
Apr-
14
Mobilise to site and set up main
construction compound
Site Entrance and on-site tracks
Crane Hardstandings
Abnormal Load Site Entrance
Turbine Foundations
Control Building & Substation
MV Cable Installation
Turbine Deliveries
Turbine Erection
Operational Take Over
4.2 Environmental Management
Monitoring will be carried out throughout the construction of the wind farm. Specific
documents relating to this are:
1. Environmental Requirements of Contractors Annex 3
2. Emergency Procedure in the Event of a Contaminant Spill Annex 4
3. SuDS Design Statement Annex 5
4. Water Quality Monitoring Procedure Annex 6
4.2.1 Contractors Requirements
Specific details of the environmental management and emergency procedures to be adopted
during the construction phase by Contractors are detailed in the Environmental Requirements
of Contractors document.
RES specific environmental management requirements and compliance of the Contractors to
their environmental responsibilities are managed through our Environmental Management
System Procedures and Policies which are certified to ISO 14001.
The appointed Contractors will be required to adopt methods of working on site which reduce
the effects of noise occurring during the construction period in accordance with BS 5228:
Noise control on construction and open sites. The following mitigation measures will be
implemented where necessary:
For any particular job where construction noise may be an issue, the quietest plant
and/or machinery will be used where reasonably practical;
All equipment will be maintained in good working order and fitted with the
appropriate silencers, mufflers or acoustic covers where applicable;
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Stationary noise sources will be sited as far away as reasonably possible from
residential properties and where necessary acoustic barriers will be used to shield
them; and
The movement of vehicles to and from the site will be controlled and employees
supervised to ensure compliance with the noise control measures adopted.
The appointed Contractors will be required to sheet all heavy goods vehicles when
transporting loose construction materials to, or spoil from the site, to prevent spillage or
deposit of any materials on the highway.
4.2.2 Management of Surface and Ground Water and Water Quality Monitoring
Any incident that may impact on water quality will be dealt with in accordance with the
Emergency Procedure in the Event of a Contaminant Spill.
Detailed measures to address surface water management during the construction of the wind
farm will be based upon the SuDS Design Statement prepared by McCloy Consulting.
Water quality monitoring in accordance with the Water Quality Monitoring Procedure will be
undertaken on discharge waters prior to, during and following the construction phase to assess
and manage the performance of the drainage system, making adjustments as necessary to
ensure that site drainage does not impact on local watercourses.
4.2.3 Temporary Lighting
Temporary lighting will be required at the temporary construction compounds for security
purposes and to ensure that a safe working environment is provided to construction staff. In
addition, temporary lighting may be required to ensure safe working conditions during
construction. Any works will be undertaken within the working hours defined by Planning
Condition 6 of the planning permission, unless otherwise agreed with the Planning Authority.
All lighting rigs will be downward facing and all lights will be switched off during daylight
hours.
4.2.4 Dust Management
Typical construction operations such as the excavation and deposition of materials, vehicle
movements around site and site cutting works may result in dust arising during the works. The
potential issue of dust creation during the works will be weather and season dependant,
therefore detailed dust management methods will be subject to the works programme and
contractor working methods.
Dust management will be carried out at all times in accordance with industry best practice
measures to ensure that any local sensitive receptors are not affected by nuisance levels of
dust from the works. The following methods of dust suppression will be implemented during
the construction phase of the wind farm:
Site tracks to be damped down using bowser or other suitable system;
Road sweeper to be used to remove loose material from highways during construction;
Cleaning vehicles including wheel washing facilities;
Soil erosion control measures;
Speed limits to be put in place to ensure low vehicle speeds;
Vehicle loads to be covered;
Damping of dry excavations and cutting activities which generate dust; and
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Programming of works to minimise the time that soils are exposed.
4.3 Flood Risk Assessment
Planning Condition 30 states that the development shall only be carried out in accordance
with the approved Flood Risk Assessment (FRA) (February 2011) submitted in Appendix 3.1 of
the Supplementary Environmental Information.
Mitigation measures outlined in the FRA have been incorporated in the design of the new
bridge, access tracks, drainage and other site infrastructure and the positioning of temporary
and permanent buildings on site. The following consents will be obtained from the relevant
drainage authority (Environment Agency and Alconbury and Ellington Internal Drainage Board
(IDB)) to satisfy compliance with Planning Condition 30:
Environment Agency
Flood Defence Consents (separate consents for both the Permanent and Temporary works):
Construction of the new bridge across Ellington Brook; and
Construction of access tracks, associated extension of drainage pipe and connection of
new drainage to existing outfall within 9m of the top of bank for Ellington Brook.
Alconbury and Ellington IDB
Application for Consent for Works Affecting Watercourses:
Works affecting tributaries of an IDB controlled watercourse; and
Extension of drainage pipe.
4.4 Site Won Materials
Analysis of geotechnical site investigation results has determined that material won from the
lower strata is unsuitable for construction use within the development. Therefore all stone for
tracks, compounds, sub-station and crane hardstandings will be imported from appropriate
local sources, where possible.
Soil mixing, strengthening and compacting may occur with materials available in the upper soil
strata on site and will be performed in-situ to the extent possible. Suitable material at
locations specific to excavations such as turbine foundations, crane hard standings and
building platforms may be excavated and treated such that they are suitable as engineering
fill within the site.
4.5 Spoil Management
In line with construction best practice and to suit the ground conditions anticipated on site,
the track and crane hardstanding design has endeavoured to minimise spoil created during
construction.
Topsoil and spoil excavated during the works will generally be stockpiled close to the
excavation to limit vehicle movements on site. There will be no permanent storage of
excavated materials within a 10m buffer of any watercourse, stream or river on site to
prevent possible wash-out of fine soils or risk of instability of the watercourse banks. There
will be no permanent spoil stockpiled within the floodplain as identified in the Environment
Agencys flood mapping. The locations for the permanent placement of excavated spoil are
shown on Drawing 02341D3503-01 in Annex 2.
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4.6 Traffic Management
In accordance with Planning Condition 30(t), details of the proposed traffic management for
the site have been developed and are included in the Woolley Hill Wind Farm Traffic
Management Plan (TMP) (Reference: 02341-004519).
4.7 Reinstatement of Construction Areas
4.7.1 General
Reinstatement will be undertaken as work progresses using the turf and or topsoil removed
during the construction activities detailed in Section 5.
In addition, following the completion of the works a final inspection of the wind farm site will
be undertaken and in circumstances where reinstatement using turf and or topsoil is
unsuccessful alternative methods will be considered.
4.7.2 Temporary Construction Compounds
The temporary construction compounds will be reinstated to the approximate pre-construction
condition and the following shall take place:
all temporary structures, construction equipment and fencing will be removed;
the granular material which was placed to form the hardstanding areas will be taken
up and removed to areas agreed with the landowner; and
the areas will be backfilled with material stripped and stored during the construction
of the compounds, covered with topsoil and reseeded as required.
4.8 Community Liaison
Throughout the construction period of the project, RES will maintain an open dialogue with
local residents and all other interested parties. Regular progress meetings will be held within
the local communities and updates on progress and forthcoming activities will be
communicated by a dedicated website and regular newsletters.
A dedicated Community Liaison Officer will be appointed to provide a key contact between
RES and the community through a Community Liaison Group (CLG). Details of this CLG are
provided in Annex 7.
4.9 Health and Safety Management
The Principal Contractor will be responsible for ensuring that a construction phase health and
safety plan is implemented and followed on site. All work will be carried out in accordance
with:
the Health and Safety at Work etc. Act 1974;
the Construction (Design and Management) Regulations 2007; and
all applicable third party safety guidelines.
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5.0 CONSTRUCTION METHOD
5.1 Temporary Construction Compounds and Site Fencing
5.1.1 General
Temporary construction compounds are required for the provision of site offices, welfare
facilities and storage arrangements for materials, plant and equipment. There are two
temporary construction compounds required for different areas and stages of the project.
The temporary construction compounds will be constructed at the locations indicated on
Drawing 02341D1001-06 in Annex 2. Details of the construction compounds are shown on
Drawings 02341D2220-02, 02341D2239-02 and 02341D2229-02 in Annex 2.
The Main Construction Compound shown in Drawing 02341D2220-02 and 02341D2239-02 in
Annex 2 will be built for use during construction of the access tracks and as the main
compound for the site, with welfare facilities provided at this location.
The Enabling Works Construction Compound shown in Drawing 02341D2229-02 in Annex 2 will
be used solely for the temporary setting down of materials during the construction of the
Ellington Brook Bridge. As the compound is located within the floodplain identified within the
EA flood mapping, it will not be fenced and no temporary construction buildings will be
erected.
5.1.2 General Construction Method
The typical construction activities associated with the temporary construction compounds are:
the areas to be used as compounds will be set out;
topsoil shall be removed and carefully stockpiled;
granular material will be spread and compacted to provide an area suitable for the
siting of offices, storage containers, parking (where required) and to enable offloading
of materials;
a covered, impermeable bunded area will be provided within the Main Construction
Compound for the storage of fuel oils. Refuelling will be undertaken in line with the
requirements as outlined in Annex 4;
the Main Construction Compound will be fenced around the perimeter and secured
with locked gates outside working hours.
5.2 Site Entrances
5.2.1 General Method
All traffic associated with construction of the wind farm (except for some larger turbine
components) will be required to access the site via Grove Lane using the newly constructed
General Site Entrance in accordance with the TMP. Grove Lane is a Cambridgeshire County
Council (CCC) adopted highway, therefore technical approval for the new entrance will be
sought from CCC.
Turbine component deliveries will be made via both the newly constructed General Site
Entrance and the Abnormal Load Site Entrance from the eastbound off-slip at Junction 20 of
the A14. The A14 off-slip is a Highways Agency (HA) adopted highway, therefore technical
approval for the new entrance will be sought from the HA.
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The site entrances will be constructed at the locations indicated on Drawing 02341D1001-06 in
Annex 2. Details of the site entrances are provided in the Woolley Hill Wind Farm Traffic
Management Plan (TMP) (Reference: 02341-004519).
All works to be carried out within the public highway will be designed in accordance with the
relevant Highway Authoritys standards. Technical approval for the works will be obtained
from the relevant Highway Authority prior to the works commencing. The technical approval
will address:
construction of the access into the site;
erection of entrance gates;
creation of visibility splays;
installation of a removable barrier for restricting access to the new bridge (Abnormal
Loads Site Entrance only); and
cleaning of site entrances, facilities for wheel washing and cleaning the adjacent
public highway.
Prior to public road works being undertaken, a Section 278 Agreement in accordance with the
Highways Act 1980 will be entered into with the relevant Highway Authorities. All works to
public roads will be carried out in accordance with details of the Section 278 Agreement. A
detailed programme of all works and any required traffic management proposals will be
submitted to and agreed with the Highway Authorities
5.2.2 General Construction Methodology
The site entrances will be constructed in accordance with the approved technical drawings as
follows:
obtain necessary permits and approvals from Cambridge County Council, Highways
Agency and the Environment Agency;
inform statutory services & identify any assets to be protected or diverted;
install appropriate traffic management;
topsoil shall be removed and carefully stockpiled;
new drainage will be installed taking care to ensure that existing drainage will not be
compromised;
edge restraints where required in the design will be installed;
road pavement works at the site entrance will be completed to the design
requirements of the relevant Highway Authority; and
line marking, signage, fencing and vehicle restraint systems required as part of the
design will be completed.
5.3 Site Tracks
5.3.1 Design Philosophy
The general approach to road construction is to provide an alignment that minimises
environmental impact whilst providing an access track that meets the requirements for the
safe delivery of wind turbine components and other vehicles.
The running width of the tracks shall be in accordance with the requirements of the chosen
turbine supplier. Typically this is 4.5 - 5.5 metres wide on straight sections, increasing at
corners and passing places to accommodate the swept path of turbine delivery vehicles. The
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track working area will be kept to the minimum required allowing for working area, safe
access, drainage and electrical works.
All site tracks have been designed taking account of the loadings provided by the turbine
manufacturer, and will consist of compacted stone structure. A number of track designs may
be utilised on site which will be determined during detailed design dependent on the ground
conditions encountered on site. Examples of the track designs that may be used can be found
in Drawing 02341D2221-02 in Annex 2 and include:
cut track from suitable load bearing strata;
cut track from ground improved strata;
floating track; and
another appropriate method identified by the civil works contractor appointed to
undertake the works.
Track drainage will be incorporated within the design as set out in Drawings MCL115-
54_DWG_101_5 to MCL115-54_DWG_105_5 in Annex 5.
5.3.2 Cut Track
Cut track construction may be used in areas identified where the thickness of soft soils is low,
and the underlying layer has adequate load bearing properties. This cut track system will
likely consist of a suitable capping layer and then a suitable running layer, but may be
optimised if a stiffer bearing stratum is encountered.
5.3.3 Floating Track
Floating track construction may be adopted where the ground conditions require. This system
involves installing geo-grid directly onto the organic or exposed soil layer and placing layers of
suitable stone and geo-grid (as required) above.
5.3.4 Ground Stabilisation
Where the load bearing properties of the underlying soils are determined to be insufficient,
ground stabilisation may be carried out to provide adequate bearing capacity of the formation
level. A variety of methods may be required due to the variable nature of the ground at
Woolley Hill but are likely to comprise in-situ soil mixing with lime and/or cement. Specific
construction methods shall be selected at detailed design stage in consultation with specialist
contractors. Any track design based on ground improvement techniques will be performed in
accordance with a project specific Specification for Ground Improvement Works.
5.3.5 Watercourse buffers
A buffer zone will be maintained around all watercourses on site. The exception to these
buffer zones is where there are crossing points or where the existing track is located within
the buffer zone. Site personnel will be made aware of the buffer zones through the site
induction and specific tool box talks. Buffer zones and mitigation measures to prevent
contamination of watercourse by silts will be in accordance with the SuDS Design Statement
provided by McCloy Consulting in Annex 5.
5.3.6 General Construction Methodology
The following general methodology will apply to construction operations for both upgraded
tracks and new tracks:
Document Reference: 02341-003667 Issue: 01 - Approved
p.14
establish alignment of the site tracks from the construction drawings and mark out the
centrelines with ranging rods or timber posts, track corridors shall be pegged out in
advance of operations;
a cut off ditch may be installed on the slope above the earthworks footprint where
achievable given the sloping topography;
topsoil will be removed and stored carefully for use in reinstatement works (not
applicable to floated tracks);
any remaining subsoil will be excavated down to a suitable bearing stratum and set
aside along each side of the road, for later use in landscaping, backfilling around
structures and verge reinstatement (not applicable for floated tracks);
design buffer zones will be adhered to and as construction is progressed the
effectiveness of the buffer zones will be reviewed and if necessary increased;
depending on depth and type of material, embankment slopes are anticipated to be
between 1:1 to 1:3;
the stone track pavement material shall then be either spread by a dozer or placed by
excavator and compacted in layers, typically using vibratory rollers. The thickness of
layers and amount of compaction required will be determined based on the design,
which will take account of the characteristics of the material and the compaction
plant to be used;
track drainage will be excavated adjacent to the tracks where required. The running
surfaces of the site tracks will be finished to encourage drainage and reduce ponding.
Surface water runoff will not be allowed to discharge directly into existing
watercourses but will be routed through the drainage system;
where the road alignment crosses existing drainage channels, crossings appropriate to
the location will be designed in accordance with the relevant guidelines; and
reinstatement of the road verges, drainage swales and embankments will be ongoing
as the roads are constructed. The intention will be to minimise the amount of time in
which any material will be stockpiled.
5.4 Bridge
A bridge across Ellington Brook is required to provide access to the site for the delivery of
turbine components. The construction of the bridge will require permanent Flood Defence
Consent from the Environment Agency under the Flood and Water Management Act.
The Abnormal Load Access Bridge General Arrangement is shown on Drawing
CIV_SA_03_100_A03 in Annex 2.The proposed bridge will be a single span bridge so that there
is no support within the existing channel and will have an overall length of approximately 10.5
metres between faces of abutments. The bridge deck will be supported on reinforced concrete
abutments and have steel containment parapets.
5.4.1 Method Statement
A Flood Defence Consent for temporary works will be obtained from the Environment Agency,
prior to the works commencing. The temporary works Flood Defence Consent will include a
method statement developed with reference to Works and maintenance in or near water:
PPG5 and will details how elements of the bridge will be built including addressing the
following:
excavation for abutments and managing the risk of silt pollution;
disposal of contaminated water;
managing concrete and cement used in the works; and
Document Reference: 02341-003667 Issue: 01 - Approved
p.15
use of oils and chemicals in the works.
5.5 Crane Hardstandings
5.5.1 Design Philosophy
All crane hardstandings will be designed taking account of the loadings provided by turbine
manufacturers, and will consist of one or a combination of the following:
a compacted stone structure bearing directly on a suitable formation strata;
a compacted stone structure bearing on a formation strata improved through ground
stabilisation techniques;
a compacted stone structure bearing on a strengthened soil mass created by the
installation of multiple stone or concrete columns; or
another appropriate method identified by the civil works contractor appointed to
undertake the works.
Floated construction is not deemed to be acceptable for crane hardstandings due to the
flexibility of such structures and the inevitable settlement.
5.5.2 General Method
The main crane hardstandings are anticipated to be 40m x 30m and have a maximum cross and
longitudinal fall tolerance of 1% (1:100). The temporary hardstanding elements as shown in
Drawing 02341D2226-04 in Annex 2 will be reinstated post construction. The main crane
hardstanding area will be left uncovered for the operational lifetime of the wind farm in line
with good practice outlined in the Scottish National Heritage guidance Good Practice during
Windfarm Construction.
Where competent soils exist close to the existing ground surface, the hardstanding area shall
typically be constructed using the following methods:
a cut off ditch may be installed on the slope above the earthworks footprint where
required given the sloping topography;
topsoil will be removed and stored carefully for use in reinstatement works;
any remaining subsoil will be excavated down to a suitable bearing stratum and set
aside for later use in landscaping, backfilling around structures and verge
reinstatement;
where excavation is required to extend below the water table or in material which
does not drain freely, appropriate pumping will be employed to keep the excavation
dry. Water pumped from an excavation shall not be discharged directly to any
watercourse, and shall be treated according to the principles of the SuDS Design
Statement, refer Annex 5.
temporary & permanent drainage shall be installed;
temporary and permanent drainage will be excavated adjacent to the crane
hardstanding where required. The surfaces of the crane hardstanding will be finished
to a cross fall of no greater than 1% to encourage drainage and reduce ponding.
Surface water runoff will not be allowed to discharge directly into existing
watercourses but will be routed through the drainage system;
the crane hardstanding material shall then be either spread by a dozer or placed by
excavator and compacted in layers, typically using vibratory rollers. The thickness of
layers and amount of compaction required will be determined based on the design,
Document Reference: 02341-003667 Issue: 01 - Approved
p.16
which will take account of the characteristics of the material and the compaction
plant to be used.
Where the load bearing properties of the underlying soils are determined to be insufficient,
ground stabilisation may be carried out to provide adequate bearing capacity of the formation
level. Due to the variable nature of the ground at Woolley Hill Wind Farm, specific
construction methods shall be selected at detailed design stage in consultation with specialist
contractors. Such methods may consist of:
Compaction of the existing in situ soils;
Lime/cement stabilisation of the existing in situ soils; or
Installation of stone or concrete columns to provide adequate support.
Any crane hardstanding design based on ground improvement techniques will be performed in
accordance with a project specific Specification for Ground Improvement Works.
In all cases, the completed hardstanding platform shall consist of a compacted stone layer
from the improved formation level to design level.
5.6 Turbine Foundations
5.6.1 Design Philosophy
Foundations will be designed in accordance with the RES Basis of Design - Wind Turbine
Gravity Base Foundations, taking account of the specific foundation techniques to be
employed at Woolley Hill. Due account will be taken of guidance provided in appropriate
codes and standards such as Eurocodes, British Standards and other specialist design
documents.
Due to the anticipated load bearing capacity of the near surface soils, gravity base turbine
foundations are expected to be used to support the wind turbine superstructure. The wind
turbine foundation is characterised by having to resist very high overturning moments. Gravity
foundations are designed to have sufficient weight to maintain stability under all loading
conditions and be of appropriate size and stiffness to distribute load in accordance with the
geotechnical conditions encountered at each turbine location.
The foundations will be designed as a reinforced concrete structural slab. The foundation
geotechnical design will be based on the information contained in the site investigation
reports produced by RSK Environment Ltd and factors of safety will be incorporated in
accordance with European design standards. The site specific designs will typically be of the
dimensions detailed on Drawing 02341D2225-02 in Annex 2.
An earth mat will be buried around the turbine to provide protection to personnel in the event
of an electrical fault during operation of the wind farm.
The foundations will been designed and constructed in accordance with relevant UK safety
legislation and design regulations. Design risk assessments will be carried out and risk
mitigation measures incorporated into the design.
5.6.2 General Construction Method
Details of the foundation works are detailed in the sections below:
the extent of the excavation will be marked out, including an allowance for trimming
the sides of the excavation to provide a safe working area;
the topsoil will be excavated and stored to one side for reuse during the landscaping
around the finished turbine;
Document Reference: 02341-003667 Issue: 01 - Approved
p.17
where excavation is required to extend below the water table or in material which
does not drain freely, appropriate pumping will be employed to keep the excavation
dry. Water pumped from an excavation shall not be discharged directly to any
watercourse, and shall be treated according to the principles of the SuDS Design
Statement, refer Annex 5.
temporary & permanent drainage shall be installed;
excavation will be undertaken to competent material. Excavated material may be
stockpiled temporarily adjacent to the excavation for later use as backfill or stored
elsewhere on site;
a layer of concrete blinding will be laid directly on top of the newly exposed
formation, finished to ensure a flat and level working surface;
steel reinforcement, the turbine anchorage system and cable ducts will be fixed in
accordance with the designers drawings and schedules. Formwork will be erected
around the steel cage;
concrete will be placed using a crane, pump or other suitable lifting device and
compacted using vibrating pokers to the levels and profile indicated on the drawings
and in accordance with best working practices;
upon completion of the concreting works the foundation will be covered and allowed
to cure;
following the curing period any formwork around the foundation will be stripped and
stored for reuse;
the foundation will be backfilled with suitable material, where possible using the
material arising during the excavation, and landscaped using the vegetated soil layer
set aside during the initial excavation;
a gravel footpath will be built leading from the access track or crane hardstanding to
the turbine door or access steps and around the turbine for maintenance.
In the case where competent material is lower than the required formation level the
foundation will likely be over-excavated to competent material and compacted engineering
fill used to provide suitable bearing capacity.
5.7 Turbine and Turbine Transformer Erection
5.7.1 Turbines
In reference to Planning Condition 8, Planning Condition 9 and Planning Condition 10, the
turbine will be supplied with a semi matt finish and be pale grey colour (RAL 7035) and
installed with a height not exceeding 130.5 m measured from ground levels to the blade tip in
the vertical position. The wind turbine blades will rotate in the same direction.
The turbines will not carry any symbols, logos or other lettering except where required under
other legislation. However, RES propose to add turbine numbers to the base of each tower to
aid service engineers during the operational phase of the wind farm. A typical detail for a
completed turbine is shown in Drawing 02341D2227-02 in Annex 2.
In line with health and safety best practice, turbine manufacturers have indicated a
preference to locate a passive infra-red (PIR) detector and light above each turbine door. It
should be noted that this lamp will not be permanently lit and would only be switched by the
PIR when personnel approach a particular turbine.
Specific locations for the turbines are as per Drawing 02341D0001-09 in Annex 2.
Document Reference: 02341-003667 Issue: 01 - Approved
p.18
5.7.2 Turbine Transformers
Depending on the model of turbine finally chosen for the site, turbine transformers will be
placed externally to the main turbine.
The transformers are delivered by the manufacturer. If the oil cooled type, they will be
supplied full of oil and will not require topping up or filtering on site. The transformers will be
of the sealed type and will be inspected for any damage prior to offloading.
The units will be tested, commissioned and energised by suitably trained and authorised
persons. The transformers will be located within enclosures which shall be locked, accessible
by trained and authorised personnel only, and displaying appropriate warning signs.
5.7.3 General Turbine Erection Method
The following steps will be undertaken in order to erect the turbines on site:
turbine components are delivered in sections to the site;
the sections are lifted by adequately sized cranes (1 main crane and smaller tail
crane) and positioned on the foundations / other turbine sections until the entire
turbine is erected;
wind turbine erection is subject to a maximum wind speed and for safety and
structural reasons if the upper tower section is in place it must have the nacelle
section in place too, or other means to ensure the structural integrity of the tower in
its partly constructed state;
upon completion of the erection all fasteners will be tightened to the correct torque
and the internal fit out of the turbine undertaken. Finally the mains power will be
connected to the turbine controller; and
when the controller is booted up the turbine commissioning will commence, and
following the successful execution of the tests on completion the turbines will be
handed over as complete.
5.8 Cable Trenching Works
5.8.1 Design Philosophy
In accordance with Planning Condition 13, all electricity and other service cables between
the turbines and the substation/control building will be placed underground.
The detailed construction and trenching specifications will depend on the ground conditions
encountered but typically cables will be directly buried inside a trench, except at road
crossings where cables will be ducted.
5.8.2 General Method
The approximate layout of onsite cables can be found in Drawing 02341D4301-01 in Annex 2.
The cable trench cross sectional size is dependent on the number and size of the cables
required at each location. Typical details of a cable trench are shown in Drawing 02341D4304-
02 in Annex 2.
The following construction method will typically be used when cable trenching is on flat
terrain:
trenches will be excavated and a suitable bedding material placed for which to lay the
cables upon. The ground is trenched typically using a mechanical digging machine;
Document Reference: 02341-003667 Issue: 01 - Approved
p.19
the cables shall be laid directly onto the bedding material;
the trench will then be backfilled and compacted with a suitably competent material
up to the required level and finished with a layer of topsoil to aid in the trench
reinstatement.
a suitable marking tape is installed between the cables and the surface; and
the cables are terminated on the switchgear at each turbine and the substation.
5.9 Substation Compound and RES Control Building
5.9.1 Design Philosophy
MV cables will export power from the wind turbine generators to the RES substation compound
and control building before being transferred to the local distribution network. The location of
the control building is shown on Drawing 02341D1001-06 in Annex 2.
The control building has been designed, sized and positioned to be sympathetic with the
surroundings. To ensure a high level of design will be carried out in the development of the
control building and substation, Mott Macdonald has been commissioned to provide specialist
input to the design process.
The layout shown on Drawing 02341D2222-02 in Annex 2 and elevations shown in Drawing
02341D2223-03 in Annex 2 represent the probable building configurations but are dependent
on a final choice of turbine and detailed electrical design. The control building contains a
control room, RES switch room, utility switch room, SCADA room, storage rooms and welfare
facilities.
The foundations for the building will be designed based on the investigation reports produced
by RSK Environment Ltd. The substructure will likely consist of mass concrete foundations, in
the form of part raft and part strip footing, insulated and tanked in accordance with best
practice and Local Authority Building Control requirements. Trenches or a floor void would be
provided between the foundation and ground floor to accommodate services via a raised floor
system.
The superstructure will likely consist of external and internal walls built off the foundation
and would support the roof. The ground level raised floor system would be supported by either
the walls or directly by the foundations. The walls would be constructed of precast reinforced
concrete, masonry, blockwork or similar.
The control building roof covering will be dark grey tiles or similar, while the external walls
will be finished with a textured grey render. In accordance with Planning Condition 12,
construction of the control building and substation compound will not commence until details
of the exact finishes of the control building have been submitted to and approved by the Local
Planning Authority.
The roof will be a traditional pitch roof construction that complies with relevant design
standards. All doors and window frames will be made of steel or timber, prefabricated to fit
structural openings. All door openings will be sized to comply with the current mechanical and
electrical requirements.
The substation control building will have a domestic electrical system including lights, sockets,
fire alarm and intruder alarm. This will be designed, installed and commissioned by specialist
electrical contractors.
Surface water drainage from the substation and control building will be connected to the wind
farm drainage network, refer Annex 5. Foul water drainage will be provided in the form of a
sealed cess pit at the location as shown in Drawing 02341D2222-02 in Annex 2.
Document Reference: 02341-003667 Issue: 01 - Approved
p.20
5.9.2 General Method
The control building and substation compound will be constructed generally in accordance
with the following:
the plan area of the control building and substation compound will be set out and the
soil stripped and removed to a temporary stockpile. Storage areas will be stripped of
vegetation prior to stockpiling in line with best working practises;
the dimensions of the control building and substation compound area will be set out to
meet the layout shown on Drawing 02341D2222-02 in Annex 2. Since the overall
footprint cannot be determined until a turbine has been selected, all details present a
worst-case in terms of overall footprint to satisfy the requirements of the Grid
Operator and the necessary equipment and accommodation to safely and efficiently
operate the wind farm;
the building foundations will be excavated down to the level indicated by the
designer. Reinforcement, waterproofing systems and formwork will be installed and
the foundation concrete will be poured;
internal and external walls will be installed/constructed by mobile crane or by hand as
appropriate, services or ducts will be incorporated, and the raised floor system will be
put in place;
the 33kV switchgear is typically installed using a mobile crane or HIAB, the indoor
equipment is then connected, wired, tested and commissioned typically by engineers
supplied by the switchgear manufacturer;
the roof trusses will be lifted into position using an adequately sized mobile crane,
felted, battened, tiled and sealed against the weather;
the doors will be fitted and the external & internal finishing applied including any
fitted furniture. If precast wall are used, doors may be installed prior to erection;
internal and external fittings, finishes and hardware will be installed in the Control
Building. Finishes are to be agreed with the local authority:
o Walls to be finished with render or cladding on all sides.
o Roof tiles to be fibre slating or similar.
o Doors to be made or framed by steel or timber with steel sheeting for
security. The compound area will be re-graded, the electrical equipment
plinths constructed and an over site carpet of single size clean granular
material will be laid.
A palisade fence will be erected around the compound and the area surrounding the
building landscaped as required, returning it as far as practicable to near original
condition;
PIR (Passive Infrared) operated external lighting will be installed on the building and
substation compound to enable safe access and egress during periods of reduced light.
5.10 Grid Connection
Connection to the grid shall be made at Perry Primary Substation. UK Power Networks will
facilitate the connection by installing an underground power line from the onsite substation to
the grid connection point. UK Power Networks will design and construct the connection in
accordance with their recognised standards, planning conditions and any relevant landowner
agreements.
Document Reference: 02341-003667 Issue: 01 - Approved
p.21
All necessary consents for the underground power line shall be obtained by UK Power
Networks, and constitute separate consents.
5.11 Anemometry & Communication masts
Two types of mast have permission to be erected at Woolley Hill Wind Farm, permanent
lattice and temporary guyed tubular masts. In total four different masts are required for the
development as follows:
one permanent anemometry mast;
two temporary site calibration and power performance masts; and
one permanent communication mast.
The locations of permanent and temporary masts are identified in Drawing 02341D1001-06 in
Annex 2. Typical details of the masts can be found in Drawing 02341D2224-04 in Annex 2.
5.11.1 Permanent Anemometry Mast
The mast will require its own reinforced concrete foundation and crane pad to allow for
erection, plus associated electrical and communication plant that service the mast. The
foundation construction and mast erection will follow a similar approach to that of the
turbines.
5.11.2 Temporary Site Calibration & Power Performance Masts
Two masts are to be installed within the development boundary.
Temporary site calibration & power performance masts have planning permission to be
erected during construction and will continue to be in place for a period during operation of
the wind farm while accurate wind speed measurements are taken.
5.11.3 Communication Mast
The mast will require its own reinforced concrete foundation and crane pad to allow for
erection, plus associated electrical and communication plant that service the mast. The
foundation construction and mast erection will follow a similar approach to that of the
turbines.
Document Reference: 02341-003667 Issue: 01 - Approved
p.22
6.0 DECOMMISSIONING METHOD
In conformance with Planning Condition 4, within 24 months of the end of the 25 year period
pursuant to Planning Condition 3, decommissioning of the wind farm will be carried out in
accordance with Planning Condition 4.
Planning Condition 4 requires that a site restoration scheme will be provided to the Local
Planning Authority no later than 12 months before the expiry of the planning permission for
written approval and will detail measures covering the removal of all ground elements of the
development. The site restoration scheme will include:
the management and timing of works;
the environmental management provisions; and
a traffic management plan.
The works described below are indicative of the decommissioning method which would be
undertaken.
6.1 Site Access Tracks & Temporary Hardstanding Areas
The new site tracks and temporary hardstanding areas would be reinstated to the approximate
pre-wind farm condition, unless otherwise agreed with the Local Planning Authority. Areas to
be reinstated would likely be treated in the following way:
the material used to construct the tracks would be taken up and removed to areas
identified and agreed in the site restoration scheme;
the areas would be backfilled with material generated local to the access tracks and
hardstanding areas, covered with topsoil and reseeded as required;
backfilling of access tracks would be carefully planned in advance to avoid having to
unnecessarily move plant and equipment on freshly reinstated land.
Upgraded tracks would be left unchanged from the conditions used during the operation phase
of the wind farm.
6.2 Wind turbines
The decommissioning of the wind turbines would be the reverse of the erection process
involving similar lifting plant and equipment;
It is anticipated that the turbine nacelle would be taken down and loaded straight
onto the back of transport vehicles and removed from site for reconditioning or scrap;
and
The turbine towers and blades would be broken down into smaller component parts
than during the initial delivery and erection process, into more manageable sections
prior to removal from site.
6.3 Turbine Foundations
Following the removal of the wind turbine the concrete foundation would be removed
to 1.5 m below existing ground level;
The steel foundation insert or bolt ring and any exposed reinforcement would also be
cut back to 1.5 m below existing ground level and treated with a proprietary corrosion
protection system;
Document Reference: 02341-003667 Issue: 01 - Approved
p.23
Upon completion of the corrosion protection the foundation would be backfilled with
material generated local to the foundation, covered with topsoil and reseeded as
required; and
It is widely accepted within the construction industry that there is no appreciable
effect on the local environment from buried reinforced concrete structures left in-situ
due to the inert state and classification of concrete.
6.4 Electrical Equipment
The electrical equipment will be decommissioned in the reverse of the installation method
described above to a depth of 1.5m or as agreed with the Local Planning Authority. The
equipment would be dismantled, removed from site and disposed of in an appropriate manner.
Cables may be left in the ground if recovery is not reasonably practicable.
6.4.1 Substation and RES Control Building
The substation and RES control building would be decommissioned by disconnecting and
dismantling all the surface plant. Solid structures such as the building and equipment plinths
will also be dismantled and foundations removed to a depth of 1.5 m. Ducting and cabling that
is practical to remove will be removed to a depth of 1.5 m.
The fence surrounding the compound would be removed and the area landscaped back to its
original state.
6.4.2 Turbine Transformers
The units would be decommissioned in the same manner as they were installed, removed from
site and either disposed of or refurbished by a company certified to handle such materials.
This specialist company will also dispose of any oil or residual waste products in line with
applicable COSHH Regulations.
7.0 RECORDS
Records, as-built drawings, specifications, operational maintenance manuals and residual risks
will be collated and filed in the Project Health & Safety file based upon the requirements of
the Construction (Design & Management) Regulations 2007 or applicable legislation at the time
of decommissioning.
Document Reference: 02341-003667 Issue: 01 - Approved
Annexes
ANNEX 1 NON-MATERIAL AMENDMENT CONFIRMATION
ANNEX 2 DRAWINGS
ANNEX 3 ENVIRONMENTAL REQUIREMENTS OF CONTRACTORS
ANNEX 4 PROCEDURE IN THE EVENT OF A CONTAMINANT SPILL
ANNEX 5 SUDS DESIGN STATEMENT
ANNEX 6 WATER QUALITY MONITORING PROCEDURE
ANNEX 7 COMMUNITY LIAISON GROUP INITIATION LETTER AND TERMS OF REFERENCE
Document Reference: 02341-003667 Issue: 01 - Approved
ANNEX 1 NON-MATERIAL AMENDMENT CONFIRMATION
RIECIE~VIED, 1 FEB,2013
~ ...... ~
,. .. ~./Huntingdo~nshireDISTRICT COUNCIL
Pathfinder House, St Mary's StreetHuntingdon. PE29 3TNmail~huntsdc.gov.ukDX 140316 HuntingdonSC
Tel: 01480 388388Fax: 01480 388099
ww.huntingdonshire.gov.uk
RES UK And Ireland Ltd (FAO Mr J Knight)Beaufort CourtEgg Farm LaneKings LangleyHertordshireWD4 8LR
Our Ref: 1300045NMAYour Ref:
7th February 2013
Oear Sir/Madam
Application for Non-Material Amendment following a grant of Planning ~ermissionAmendment to Planning Permission 1001741FUL (allowed at appeal) to alter position of trackleading to turbine 4 and associated infrastructure. Additional temporary constrUction areas.Redesign of bridge crossing Ellngton Brook. Redesign of substation compound and controlbuilding layoutLand East Of Whitleather Lodge Woolley Hil Ellngton
I refer to the above submission received on the 11 th January 2013 and accompanying drawingsreferenced below.
'(4
Plan Type Reference Version Date ReceivedGeneral 0234102226-04 11.01.2013PlanninQ Layout 0234102222-02 11.01.2013Elevations 02341 02223-03 11.01.2013Planning Layout 02341 02220-02 11.01.2013Elevations 02341 02239-02 11.01.2013General 0234102414-01 11.01.2013General 0234101301-01 11.01.2013PlanninQ Layout 0234101001-06 11.01.2013
I would confirm that the non-material amendment(s) as described is (are) considered acceptablesubject to the additional conditions identified below (the development remains subject to theconditions attached to the original planning permission) ;1. Note to applicant. No conditions
Should you wish to discuss the matter further please contact Jennie Parsonson 01480 388409.
ufm4.rt
-(( I1 ,\ '/I!! i ,t~ ....~ ~
~ .... ~.,/HuntingdonshireDISTRICT COUNCIL
Pathfinder House, St Mary's StreetHuntingdon. PE29 3TNmail~huntsdc.gov.ukDX140316 Huntingdon se
Tel: 01480 388388Fax: 01480 388099
ww.huntingdonshire.gov.uk
Yours faithfully
A;tvft'Andy MoffatPlanning Service Manager(Development Management) ~
ufm4.rt
Document Reference: 02341-003667 Issue: 01 - Approved
ANNEX 2 DRAWINGS
Document Reference: 02341-003667 Issue: 01 - Approved
Schedule of Drawings
Layouts
Turbine Layout 02341D0001-09
Infrastructure Layout 02341D1001-06
Civil Works
Abnormal Load Access Bridge General Arrangement CIV_SA_03_100_A03
Crane Hardstanding General Arrangement 02341D2226-04
Typical Access Track Design 02341D2221-02
Typical Construction Compound Layout 02341D2220-02
Typical Construction Compound Layout Elevations 02341D2239-02
Typical Enabling Works Construction Compound 02341D2229-02
Control Building and Substation Layout 02341D2222-02
Control Building and Substation Elevations 02341D2223-03
Wind Turbine Foundation 02341D2225-02
Met Masts 02341D2224-04
Drainage Design (Refer SuDS Design Statement - Annex6)
Drainage Management (SuDS) Site General Arrangement Sheet 1 of 5 MCL115-54_DWG_101_5
Drainage Management (SuDS) Site General Arrangement Sheet 2 of 5 MCL115-54_DWG_102_5
Drainage Management (SuDS) Site General Arrangement Sheet 3 of 5 MCL115-54_DWG_103_5
Drainage Management (SuDS) Site General Arrangement Sheet 4 of 5 MCL115-54_DWG_104_5
Drainage Management (SuDS) Site General Arrangement Sheet 5 of 5 MCL115-54_DWG_105_5
Drainage Management (SuDS) Typical Details Surface Water
Detention Basin
MCL115-54_DWG_201_2
Drainage Management (SuDS) Typical Details Trackside Drainage MCL115-54_DWG_202_2
Drainage Management (SuDS) Typical Details Silt Fence MCL115-54_DWG_203_2
Drainage Management (SuDS) Permanent & Temporary Track
Drainage Grip / Waterbar
MCL115-54_DWG_204_2
Spoil Placement
Permanent Landscaping Areas 02341D3503-01
Wind Turbine Generator
Typical Front and Side Elevations of Typical Wind Turbine 02341D2227-02
Electrical Works
MV Cable Layout 02341D4301-02
Cable Trench Profile 02341D4304-02
Project scoping turbine shortlist:ECM memo 01456-000067
Some turbines are closer than 10D tohouses. This has been approved bythe DPM.
Some of the turbines spacing is < 4D.
GENERAL NOTES
Amendments
DescriptionDateRev
Title
Client
Publisher Revision
Designed by
Drawn by
Checked by
Date
Scales @ A1
work to figured dimensions only
By
Project
Drawing Status
Project No
Computer File No
Zone Category Number
his drawing should not be scaled. Dimensions to be verified on site.Any discrepancies should be referred to the Engineer prior to work being put in hand.
This drawing is the property of Waterman Transport & Development Limited, and thedrawing is issued on the condition that it is not copied reproduced, retained or disclosed toany unauthorised person, either wholly or in part without the consent in writing ofWaterman Transport & Development LimitedPickfords Wharf, Clink Street, London SE1 9DG t 020 7928 7888 f 020 7902 0992
&
www.watermangroup.com
File
Pat
h
mail@watermangroup.com
Civic House 156 Great Charles Street Birmingham B3 3HNt 0121 212 7700 f 03333 444 501
PRELIMINARY
CONFIGURATION 1 CONFIGURATION 2
BEAUFORT COURT, EGG FARM LANE,KINGS LANGLEY, HERTS WD4 8LR.
TEL +44 (0) 1923 299200FAX +44 (0) 1923 299299
G
1 2
F
E
D
3 4 5
C
B
A
DRAWING NUMBER
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATEDATE APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
THIS DRAWING IS THE PROPERTY OF RENEWABLE ENERGY SYSTEMSLIMITED AND NO REPRODUCTION MAY BE MADE IN WHOLE OR IN PART
WITHOUT PERMISSION
TJS 060710 FIRST ISSUE050710SB01
NTS
PLANNING
N/A
N/AN/A
GENERAL ARRANGEMENTCRANE HARDSTANDING
WIND FARMWOOLLEY HILL
02341D2226-04
02341D2226-04
09071002 SB ROTOR DIAMETER AMENDED090710TJS
07091003 DJK MINOR AMENDMENTS070910MPW
17121204 MP MINOR AMENDMENTS070113GE
TYPICAL RUNNING WIDTH 4.5-5.0m
CUT TRACK SECTION
0.25m SHOULDER0.25m SHOULDER
EXISTING GROUND LEVEL
DRAINAGE SWALESHOWN INDICATIVELY
FILL TRACK SECTION
(SEE NOTE 5)
FLOATED TRACK SECTION
SLOPING GROUND SECTION
EXISTING GROUND LEVEL
DRAINAGE SWALESHOWN INDICATIVELY
TYPICAL RUNNING WIDTH 4.5-5.0m 0.25m SHOULDER0.25m SHOULDER
TYPICAL RUNNING WIDTH 4.5-5.0m 0.25m SHOULDER0.25m SHOULDER
EXISTING GROUND LEVEL
EXISTING GROUND LEVEL
TYPICAL RUNNING WIDTH 4.5-5.0m
0.25m SHOULDER0.25m SHOULDER
DRAINAGE SWALESHOWN INDICATIVELY
DEPTH VARIES GEOSYNTHETIC MESH REINFORCEMENT.NUMBER OF LAYERS REQUIRED TO BEDETERMINED DURING DETAILED DESIGN.
GEOTEXTILE SEPARATOR LAID DIRECTLYONTO VEGETATION MAT
DRAINAGE SWALESHOWN INDICATIVELY
BENCHING TYPICALLY300-500mm
DEPTH VARIES(SEE NOTE 5)
TYPICALLY 250-450mm DRAINAGE SWALESHOWN INDICATIVELY
DEPTH VARIES
BEAUFORT COURT, EGG FARM LANE,KINGS LANGLEY, HERTS WD4 8LR.
TEL +44 (0) 1923 299200FAX +44 (0) 1923 299299
G
1 2
F
E
D
3 4 5
C
B
A
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATECHKD APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
THIS DRAWING IS THE PROPERTY OF RENEWABLE ENERGY SYSTEMSLIMITED AND NO REPRODUCTION MAY BE MADE IN WHOLE OR IN PART
WITHOUT PERMISSION
TJS 060710 FIRST ISSUESB01
1:100
PLANNING
N/A
N/AN/A
TRACK DESIGNTYPICAL ACCESS
WIND FARMWOOLLEY HILL
02341D2221-02
PB02 DJK CMS ISSUE110313GE
1. EFFECTIVE WIDTH OF TRACK TO BE4.5-5.0m ON STRAIGHT SECTIONS WITHWIDENING ON BENDS AND PASSINGPLACES.
2. ALL EMBANKMENT SLOPES TO BEPROVIDED AT A STABLE ANGLE BASED ONTHE PROPERTIES OF THE MATERIALENCOUNTERED ON SITE.
3. MATERIALS ARISING FROM TRACKCONSTRUCTION TO BE SEGREGATEDAND PLACED IN AGREED LOCATIONSADJACENT TO THE WORKING AREA.REINSTATEMENT AND/OR SPOILMANAGEMENT PLANS WILL BEDEVELOPED DURING THE DETAILEDDESIGN OF SITE INFRASTRUCTURE ANDWILL IDENTIFY AREAS OF RE-USE ANDPERMANENT STORAGE OF EXCAVATEDMATERIALS IN LINE WITH CURRENT BESTPRACTICE.
4. RUNNING SURFACE, CAPPING LAYER ANDENGINEERED FILL TO BE FORMED FROMSUITABLE MATERIALS COMPACTED INLAYERS.
5. GEOSYNTHETIC REINFORCEMENT MAY BEUSED TO REDUCE THE DEPTH OF TRACKCONSTRUCTION. REQUIREMENT TO BEDETERMINED DURING DETAILED DESIGN.
6. A GEOTEXTILE SEPARATOR MAY BEINSTALLED BENEATH THECAPPING/ENGINEERED FILL LAYER FORALL TRACK CONSTRUCTION TYPESDEPENDING ON GROUND CONDITIONSENCOUNTERED ON SITE.
RUNNING SURFACE
CAPPING LAYER/ENGINEERED FILL
TOPSOIL/PEAT LAYER
LOAD BEARING STRATA TBC VIA IN-SITUTESTING
SNOW POLES TO DELINEATE SITE TRACKS AT NOMINAL 50m INTERVALS
Storagearea
RES office &meeting room
Sub contractoroffices, drying room
& canteen
Laydown area
Parking
Site
Roa
d
Chain link fence
6m wide gateUnder roaddrainage
Turning area
Soak away(See note 4)
Pedestrianaccess gate
40m Septic tank(See note 3)
Generator fortemporary compoundelectrics
Fence 1.2m highbetween pedestrian and
vehicular areas
Skips with windshield and lid
Hardstanding to compoundconsisting of compacted
stone over a layer ofgoetextile to provide a cleanand firm surface suitable for
cabins / heavy traffic
Containers forRES use.
Containers as required andsupplied by subcontractors
80m
Temporary passingplace allows fortemporary lorryparking
6m wide gate
Parking
Toilets
Oil separator(See note 4)
Bundedrefueling
area
Storagearea
Parking
TemporaryStorage
area
20m
Pedestrian access gate
Soak away(See note 3)
TYPICAL FENCE PANEL1:75 SCALE
2.5m
KERB EDGING FINISH
NOTES
1. NUMBER AND LOCATION OFCOMPOUND EQUIPMENT ANDFACILITIES ARE INDICATIVE ONLY
2. STRUCTURE TO BE TEMPORARYAND TO BE REMOVED AFTERCONSTRUCTION.
3. SEWAGE DISPOSAL TO BE INACCORDANCE WITH THE RELEVANTAGENCY REQUIREMENTS, TO SUIT THEGROUND CONDITIONS. A CESS PIT ORPACKAGE TREATMENT PLANT MAY BESUBSTITUTED FOR THE PROPOSEDSEPTIC TANK AND SOAKAWAY.
4. THE USE OF AN OIL INTERCEPTORAND SOAKAWAY FOR THE BUNDEDREFUELLING AREA SHALL BE AGREEDWITH THE RELEVANT AGENCY TO SUITGROUND CONDITIONS. USE OF AFULLY COVERED BUNDED AREA MAYBE SUBSTITUTED FOR THE PROPOSEDOIL INTERCEPTOR AND SOAKAWAY.
5. INTERNAL LAYOUT OF THECONSTRUCTION COMPOUND MAY BEREVISED TO SUIT THE CONTRACTORSWORKING REQUIREMENTS.
BEAUFORT COURT, EGG FARM LANE,KINGS LANGLEY, HERTS WD4 8LR.
TEL +44 (0) 1923 299200FAX +44 (0) 1923 299299
G
1 2
F
E
D
3 4 5
C
B
A
DRAWING NUMBER
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATEDATE APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
THIS DRAWING IS THE PROPERTY OF RENEWABLE ENERGY SYSTEMSLIMITED AND NO REPRODUCTION MAY BE MADE IN WHOLE OR IN PART
WITHOUT PERMISSION
TJS 060710 FIRST ISSUE050710SB01
1:350@A1
PLANNING
N/A
N/AN/A
COMPOUND LAYOUTTYPICAL CONSTRUCTION
WIND FARMWOOLLEY HILL
02341D2220-02
02341D2220-02
17121202 MP UPDATED TO SUIT THE TOPOGRAPHY070113GE
80m
Containers as required andsupplied by subcontractors
Skips with windshield and lidGenerator for temporary compound
electrics
SCALE : 1:300
SOUTH ELEVATION
SCALE : 1:300
RES office &meeting room
Sub contractoroffices, drying room
& canteen
RES office & Sub contractor offices, drying
2.5m
Generator for temporarycompound electrics
Containers as required andsupplied by subcontractors
Containers as required andsupplied by subcontractors
Skips with windshield and lid
Sub contractoroffices, drying room
& canteen
80m
Toilets
Containers as required and
NORTH ELEVATIONSCALE : 1:300
6m 6m 6m1m
2.5m
40m 20m6m
Generator for temporary compound electrics
2.5m2
.5m
WEST ELEVATION
SCALE : 1:250
40m
ToiletsRES office &meeting room
Sub contractor offices, dryingroom & canteen
EAST ELEVATIONSCALE : 1:250
20m
2.5m
2.5m
NOTES
1. NUMBER AND LOCATION OFCOMPOUND EQUIPMENT ANDFACILITIES ARE INDICATIVE ONLY
2. STRUCTURE TO BE TEMPORARYAND TO BE REMOVED AFTERCONSTRUCTION.
3. ALL DIMENSIONS ARE INDICATIVEAND SUBJECT TO CHANGE.CONTRACTOR MUST COMPLETE THEIROWN SURVEY BEFORE COMMENCINGDETAILED DESIGN.
G
1 2
F
E
D
3 4 5
C
B
A
DRAWING NUMBER
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATEDATE APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
PF 101110 FIRST ISSUE031110BC01
AS SHOWN@A3
PLANNING
N/A
N/AN/A
COMPOUND LAYOUT ELEVATIONSTYPICAL CONSTRUCTION
WIND FARMWOOLLEY HILL
02341D2239-02
02341D2239-02
17121202 MP AMENDED TO SUIT THE REVISED LAYOUT070113GE
Laydown area
Hardstanding to compoundconsisting of compacted stone
over a layer of goetextile toprovide a clean and firm surface
suitable for heavy traffic
29.5
m
43.5m
50.5m
36.0
m
TemporaryStorage
Area
TemporaryStorage
Area
TemporaryStorage
Area
TemporaryStorage
Area
BEAUFORT COURT, EGG FARM LANE,KINGS LANGLEY, HERTS WD4 8LR.
TEL +44 (0) 1923 299200FAX +44 (0) 1923 299299
G
1 2
F
E
D
3 4 5
C
B
A
DRAWING NUMBER
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATECHKD APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
THIS DRAWING IS THE PROPERTY OF RENEWABLE ENERGY SYSTEMSLIMITED AND NO REPRODUCTION MAY BE MADE IN WHOLE OR IN PART
WITHOUT PERMISSION
MPW 080910 FIRST ISSUE070910DJK01
1 : 250 @ A3
PLANNING
BRITISH NATIONAL GRID 1936
N/AN/A
CONSTRUCTION COMPOUNDTEMPORARY ENABLING WORKS
WIND FARMWOOLLEY HILL
02341D2229-02
02341D2229-02
13021302 BC INTERNAL LAYOUT REVISED150213GE
KEY
NEW SITE TRACK
EXISTING TRACK
NOTES
ENABLING WORKS COMPOUND TO BEUSED SOLELY FOR THE SHORT TERMSTORAGE OF MATERIALS DURINGCONSTRUCTION
MATERIALS STORED WITHIN THEENABLING WORKS COMPOUND TO BEPLACED ALIGNED PARALLEL TOELLINGTON BROOK
HARD STANDING AREAS TO BEREMOVED FOLLOWINGCONSTRUCTION
NO FENCE TO BE ERECTED AROUNDENABLING WORKS COMPOUND
WF CONTROLROOM
TURBINE SCADAROOM
BUNDEDSTOREROOM
DRYINGROOM
WC
STORE ROOM
LIVING AREA
OFFICE
WF HVROOM
TARIFFMETERROOM
DNO HV ROOM
TEMPGENERATORHARD STAND
13m
30m
1.5m
1.5m1.5m
SEWAGE DISPOSAL TO BE INACCORDANCE WITH RELEVANTAGENCY REQUIREMENTS AND INACCORDANCE WITH BUILDINGREGULATIONS
CONCRETE AREA TO FACILITATEPALLET LOADING EQUIPMENT
47m1.5m 1.5m
19m
3m1.
5m
1.5m
1.5m
3m
20m
27m
50m
13m
17m 1.5m1.5m
PATH LEVEL TO TIE IN WITHADJACENT TRACK
APPROXIMATELOCATION OFSOLAR TUBE
NOTES
1. ROOM DESCRIPTIONS AND POSITIONS OF DOORS,GATES, INTERNAL WALLS AND EXTERNAL EQUIPMENTARE INDICATIVE ONLY AND ARE SUBJECT TOREQUIREMENTS OF THE TURBINE SUPPLIER AND GRIDCOMPANY.
2. LIGHTING & VENTILATION LEVELS WITHIN OFFICE TOBE DESIGNED FOR OCCASIONAL USE.
3. POSITION OF DOORS AND GATES, ARE INDICATIVEONLY AND ARE SUBJECT TO REQUIREMENTS OF THETURBINE SUPPLIER AND GRID COMPANY
4. LOCAL BUILDING MATERIALS AND FINISHES AREPROPOSED TO ENSURE THAT THE BUILDING IS INKEEPING WITH OTHERS IN THE AREA
?????????????????????????????????
BEAUFORT COURT, EGG FARM LANE,KINGS LANGLEY, HERTS WD4 8LR.
TEL +44 (0) 1923 299200FAX +44 (0) 1923 299299
G
1 2
F
E
D
3 4 5
C
B
A
DRAWING NUMBER
1 2 3 4 5
DRAWN
DRAWING TITLE
PROJECT TITLE
DRAWING NUMBER
LAYOUT DWG
6 7 8 9
SCALE
PURPOSE
COORDS
ISSUE
10
G
ORIGINAL PLOT SIZE
DATEDATE APPD REVISION NOTES
T-LAYOUT NO.
A3
F
E
D
6 7 8 9
C
B
10
A
THIS DRAWING IS THE PROPERTY OF RENEWABLE ENERGY SYSTEMSLIMITED AND NO REPRODUCTION MAY BE MADE IN WHOLE OR IN PART
WITHOUT PERMISSION
TJS 060710 FIRST ISSUE050710SB01
1:200@A3
PRELIMINARY
N/A
N/AN/A
SUBSTATION LAYOUTCONTROL BUILDING AND
WIND FARMWOOLLEY HILL
02341D2222-02
02341D2222-02
17121202 MP UPDATED TO SUIT THE TOPOGRAPHY 070113GE
SINGLE SIZED GRAVEL SURROUNDFOR EARTHING PROTECTION
VIEW 'B'
13m
VIEW B
REAR ELEVATION OF BUILDING
5.5m
FRONT ELEVATION
27m
VIEW 'A'
AIR CONDITIONINGUNIT.
3m
3m
17m
1.5m
VIEW A
VIEW B
VIEW