high street (land to south of) great wakering arboricultural impact assessment method ... ·  ·...

26
HIGH STREET (LAND TO SOUTH OF) GREAT WAKERING ARBORICULTURAL IMPACT ASSESSMENT & METHOD STATEMENT Written by: M Welby Checked by: J Seymour Date: 29/06/2016 Ref: TWEL20425aia-ams Revision:

Upload: ngominh

Post on 13-Apr-2018

218 views

Category:

Documents


2 download

TRANSCRIPT

HIGH STREET (LAND TO SOUTH OF)

GREAT WAKERING

ARBORICULTURAL IMPACT

ASSESSMENT &

METHOD STATEMENT

Written by: M Welby

Checked by: J Seymour Date: 29/06/2016

Ref: TWEL20425aia-ams Revision:

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 2

Table of Contents

1.0 Executive Summary ................................................................................................... 3

2.0 Introduction ................................................................................................................ 4

3.0 Arboricultural Impact Assessment ............................................................................. 6

3.1. Overview of proposed development ...................................................................... 63.2. Tree Preservation Orders ...................................................................................... 63.3. Previous planning applications and consents ....................................................... 63.4. Trees proposed for removal & surgery .................................................................. 63.5. Demolition, site clearance & archaeology ............................................................. 63.6. Construction within RPAs ...................................................................................... 73.7. Permanent hard surfaces within RPAs ................................................................. 73.8. Protection fencing ................................................................................................. 73.9. Shade and future pressure to prune ..................................................................... 73.10. Services .............................................................................................................. 7

4.0 Arboricultural Method Statement ............................................................................... 8

4.1. Construction exclusions zone ............................................................................... 84.2. Tree protection barriers ......................................................................................... 94.3. Ground protection ............................................................................................... 134.4. Site storage, parking, welfare facilities, etc ......................................................... 154.5. Tree surgery and removal ................................................................................... 164.6. Soft landscaping .................................................................................................. 174.7. Installation of underground services ................................................................... 184.8. Installation of no-dig surface ............................................................................... 204.9. Installation of boundary fencing within protected areas ...................................... 23

Appendix: Tree Protection Plan ........................................................................................ 24

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 3

1.0 Executive Summary

1.1. ACD was initially instructed, to carry out a tree survey, and present constraints details

in accordance with BS5837:2012 Trees in relation to design, demolition and

construction. This was to identify the quality and value of existing trees on site,

allowing decisions to be made as to the retention or removal of trees during

development. Subsequently, the subject layout has been produced and is in line with

recommendations of the British Standard. Adequate protection can be provided to

ensure all retained trees are protected throughout development.

1.2. A number of residential dwellings are proposed on this site, the layout of which can

be seen on the appended plan.

1.3. Some site supervision will be required during the installation of the no-dig emergency

access near to retained trees.

1.4. The relationship between the building and retained trees is sustainable and is not

likely to result in any pressure to prune requests from future occupants.

1.5. The arboricultural method statement and tree protection plan include details of all tree

protection measures required.

1.6. The tree protection must be erected after tree removals and surgery but before any

demolition or construction contractor enter the site, and before any soil stripping takes

place.

1.7. There will be no changes in levels, service routing, machine activity, storage of

materials or site hut positioning within areas to be protected, and the protective

fencing shall remain in position for the duration of the construction process.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 4

2.0 Introduction

2.1. Taylor Wimpey instructed ACD Environmental in June 2016 to prepare the following

impact assessment.

2.2. Following the recommendations of the British Standard1, this report includes the

necessary information to support a planning application. It demonstrates that the

impact, both direct and indirect, of the proposed development within the site, has

been assessed and where appropriate, mitigation and tree protection proposed.

2.3. The implementation of the protection methods recommended within this report are

critical for ensuring the retained trees are successfully protected through the

construction process and must be implemented prior to any work on site.

2.4. This assessment is based upon the supplied layout drawing.

2.5. This assessment considers the impact of the development on the constraints posed

by the retained trees (both beneath ground: the root protection area (RPA), and above

ground: the canopy).

2.6. Direct impact from development comes in six main forms: 1) Surface installation

within RPAs, 2) Root loss from excavation for foundations, drainage and other utilities

within RPAs, 3) Soil stripping, removal and level changes within RPAs, 4) Excessive

access facilitation pruning to retained trees, 5) Soil compaction from storage and

vehicle movements within RPAs, 6) Soil contamination.

2.7. Indirect impact can come from changes to the site hydrology, future pressure to prune

or fell, failure of trees exposed by removal of neighbouring trees, and other

environmental changes which can take several years to manifest.

2.8. The RPA for each tree represents a minimum area in m² that should be left

undisturbed around each retained tree. This is initially represented by a circle but is

often adjusted to account for constraints to root growth within the site (primarily

highways and buildings). It is therefore important to ensure the protection of trees

1 BS5837:2012 Trees in relation to design, demolition and construction- Recommendations, London: British Standards Institute

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 5

both above and below ground. Recommendations are provided in the British

Standard as to the protection of existing trees before, during and after development.

This is achieved by ensuring the tree protection plan and arboricultural method

statement are implemented before any commencement on site.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 6

3.0 Arboricultural Impact Assessment

3.1. Overview of proposed development

3.1.1. A number of residential dwellings are proposed on this site, the layout of

which can be seen on the appended plan.

3.2. Tree Preservation Orders

3.2.1. There are no Tree Preservation Orders (TPOs) present on any trees on, or

adjacent to the site, nor is the site within a Conservation Area.

3.3. Previous planning applications and consents

3.3.1. There are no relevant past applications or extant planning consents for this

site.

3.4. Trees proposed for removal & surgery

3.4.1. The only trees to be removed to facilitate construction will be a few edge

trees of the group marked G12. These are low value category C willow trees. Their

removal will not result in significant detriment to the character of the area and is

therefore acceptable.

3.5. Demolition, site clearance & archaeology

3.5.1. To ensure damage does not occur to trees highlighted for retention, tree

protection fencing must be erected before ANY plant/vehicles entering site

whatsoever. This should be subject to a pre-commencement site meeting between

the developer, their project arboriculturist and a representative from the Local

Authority.

3.5.2. No special demolition procedures need be observed on this site, other than

respecting the tree protection fencing.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 7

3.6. Construction within RPAs

3.6.1. The construction of all buildings is proposed outside the RPAs of retained

trees.

3.7. Permanent hard surfaces within RPAs

3.7.1. In section 7.4 of the British Standard, permanent hard surfacing within the

RPAs of retained trees is addressed, and recommendations made.

3.7.2. In the case of T1, the weeping willow tree, the proposed emergency access

passes through its RPA. To avoid root damage, various design criteria must be met,

ensuring that a no-dig approach is taken, limiting the impact on the trees. Any design

must be approved for use by the project arboriculturist.

3.8. Protection fencing

3.8.1. Figure 2 of the British Standard recommends a standard fencing design for

tree protection. This is a weld mesh panel design, mounted upon a well-braced

scaffold framework. This is perfectly adequate for this site and all the retained trees

can be suitably protected by its erection before any works start on site whatsoever.

3.9. Shade and future pressure to prune

3.9.1. ACD have worked with the design team from the start of this project and we

feel that the resulting proposed layout is both sustainable and results in

juxtapositions between trees and buildings which will not bring future requests for

excessive pruning and/or tree removal.

3.10. Services

3.10.1. Full details of the service and utility provisions for the site remain to be

finalised. However, there is adequate space for utility trenches to access the site

whilst avoiding RPAs and exclusion zones.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 8

4.0 Arboricultural Method Statement TO BE READ IN CONJUNCTION WITH THE APPENDED TREE

PROTECTION PLAN REF: TWEL20425-03

4.1. Construction exclusions zone

4.1.1. Barriers and/or ground protection must be used to protect all retained trees

before any machinery or materials are brought onto the site, and before any

demolition, development or stripping of soil commences.

4.1.2. Where all activity can be excluded from the RPA, vertical barriers must be

erected to create the construction exclusion zone (CEZ). The default position of

which is shown on the appended Tree Protection Plan.

4.1.3. Where, due to site constraints, construction activity cannot be fully or

permanently excluded from all, or part of a tree’s RPA, appropriate ground protection

can be installed.

4.1.4. It is the responsibility of everyone engaged in the construction process to

respect the tree protection measures and observe the necessary precautions within

and adjacent to them.

4.1.5. Inside the exclusion zone, the following shall apply:

• No mechanical excavation whatsoever.

• No excavation by any other means without arboricultural site

supervision.

• No hand digging without a written method statement having first been

approved by the project arboriculturist.

• No lowering of levels for any purpose (except removal of grass sward

using hand tools).

• No storage of plant or materials.

• No storage or handling of any chemical including cement washings.

• No vehicular access.

• No fire lighting.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 9

4.1.6. In addition to the above, further precautions are necessary adjacent to trees:

• No substances injurious to tree health, including fuels, oil, bitumen,

cement (including cement washings), builders sand, concrete mixing

and other chemicals shall be stored or used within or directly adjacent

to the protection area of retained trees.

• No fire shall be lit such that flames come within 5m of tree foliage.

4.2. Tree protection barriers

4.2.1. The construction exclusion zone will be protected as per the appended tree

protection plan that shows the default alignment of the tree protection barriers, to be

installed prior to any of the following taking place:

• Archaeology

• Demolition

• Plant and material delivery

• Soil stripping

• Utility installation

• Construction works

• Landscaping

4.2.2. Stages for installation of barriers:

1) Hand clearance of any vegetation to allow clear working access.

2) Setting out of node points

3) Barriers erected

4) Site meeting with project arboriculturist to ‘sign-off’ tree protection

fencing.

5) Site accessible to demolition/construction traffic

4.2.3. Once erected, all barriers will be regarded as sacrosanct, and will not be

removed or altered without prior recommendation by the project arboriculturist and

approval of the local planning authority.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 10

4.2.4. The default barrier construction is suitable for areas of high intensity

development, and shall comprise of interlocking weld-mesh panels, well braced to

resist impacts by attachment to a scaffold framework that is set firmly into the ground.

A detailed specification can be found on the TPP.

4.2.5. The images below are alternative barrier designs that have been successfully

used on site and that ACD are happy to support if a variation from the default style

is required. If such a variation is necessary, the approval of the project arboriculturist

will be obtained prior to any implementation on site.

4.2.6. Once barriers and/or ground protection have protected the exclusion zone,

construction work can commence.

4.2.7. All weather notices should be erected on the barriers (for example see figure

below).

Tree protection sign (download from http://www.acdenvironmental.co.uk)

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 11

Weld-mesh panels on scaffold uprights

Weld-mesh panels on wooden posts

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 12

Chain-link on angle-iron uprights

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 13

4.3. Ground protection

4.3.1. If required, ground protection is to be installed as follows. It must be capable

of supporting the expected loads and avoiding rutting, compaction and damage to

the soil: as advised in section 6.2.3 of the British Standard.

4.3.2. Stages for ground protection installation:

1) No plant machinery to be used in the area of ground protection for

whatever reason

2) Dismantle primary TPF and re-erect in secondary location as shown

on TPP (if required) OR erect fencing to protect any newly exposed

CEZ not to be covered by ground protection.

3) Any shrubs, saplings or trees to be removed, are to be cut, or ground

out to just below ground level rather than grubbed or winched out,

which can damage roots of retained trees.

4) Lay woven geotextile over existing ground surface by hand

5) Cover the area with compressible layer, woodchip for example, using

hand tools only

6) Cover compressible layer with side butting scaffold boards or plywood

boards

7) Confirm surface is acceptable for use with project arboriculturist

8) Area ready for construction access

4.3.3. Any scaffolding required within the area will be erected with the uprights

placed on spreader boards.

4.3.4. The boarding will be left in place until the construction works are finished.

4.3.5. A single thickness of boarding laid on the soil surface will provide sufficient

protection for pedestrian loads. However, for wheeled or tracked construction traffic

movements within the RPA, ground protection will involve the use of temporary

cellular confinement systems, reinforced concrete slabs or track-board systems

details of which are to be specified by the project engineer and approved for use by

the project arboriculturist and local authority before construction commences.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 14

4.3.6. Track-boards can be sourced from Trakmats Europe Ltd, 0845 6435388,

www. trakmatseurope.com, or groundguards.com

4.3.7. There is to be no-excavation within ground protection area whatsoever. This

includes installation of services and associated utilities.

Scaffold board pedestrian ground protection

Vehicular ground protection trackway

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 15

4.4. Site storage, parking, welfare facilities, etc.

4.4.1. The site will require provision for; site storage, contractor parking, welfare

facilities, temporary services/drainage, material drop off points, etc.

4.4.2. It is acceptable to place site cabins and walkways within the CEZ provided

they are installed sensitively:

• Cabins must be placed on sleepers (or similar) to spread the load,

avoiding point loading and associated soil compaction.

• The delivery of cabins should ensure that any unloading via ‘hi-ab’

crane can be carried out without impact on the crowns of retained

trees.

• Walkways, if required, should be installed as per the ground

protection specification.

• Any utilities for site compounds must be run above ground. For

example, WC foul pipes/drainage and temporary electrical

connections.

4.4.3. It is imperative that if cabins and walkways are installed, that fencing is

erected to limit access to the protected areas. If amendments are made, the project

arboriculturist should sign off the proposals prior to their implementation.

4.4.4. Contractor parking and storage areas should be sited outside the CEZ.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 16

4.5. Tree surgery and removal

4.5.1. All trees to be removed are indicated on the TPP.

4.5.2. If any surgery work is proposed, details will be submitted to, and approved

by, the council, before being carried out.

4.5.3. All work will be carried out in accordance with BS39982 industry best practice

and in line with any works already agreed with the council.

4.5.4. The tree surgeon shall ideally be chosen from The Arboricultural

Association's Approved Contractor list. All work shall be undertaken at the

appropriate time and with the consent and approval of the site agent.

4.5.5. The statutory protection3 4 will be adhered to. If further advice is required,

particularly if bats are discovered during tree work, it will be obtained from Natural

England or other competent persons and recommendations adhered to.

4.5.6. The stumps of any trees removed from within the Construction Exclusion

Zone or the RPAs of retained trees will be either cut flush to ground level and left in

situ or ground out using a stump grinder. They will not be winched out.

4.5.7. All operations shall be carefully carried out to avoid damage to the trees being

treated or neighbouring trees. No trees to be retained shall be used for anchorage

or winching purposes.

2 BS3998:2010- Recommendations for Tree Work. London: British Standards Institute 3 Wildlife and Countryside Act. (1981) London: HMSO. 4 Countryside and Rights of Way Act. (2000) London: HMSO.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 17

4.6. Soft landscaping

4.6.1. All landscaping and associated ground preparation within exclusion zones

will be carried out sensitively to ensure root damage is minimised as much as is

practicable.

4.6.2. At no time is any heavy plant to be used within any protected area.

4.6.3. Removal of existing vegetation (including turf) will be carried out with hand

tools only.

4.6.4. Should the soil be compacted or have a poor structure that may hinder the

development of any new planting, soil decompaction techniques may be used upon

consultation with the project arboriculturist.

4.6.5. Tree protection barriers may be removed to allow access and then replaced

as required/per approved documents (in liaison with the arboricultural clerk of works)

4.6.6. Levels (high spots) will not be reduced or excavated in any way. Use good

quality top-soil to level any low-lying areas and hollows, and provide a fine tilth to lay

turf on. This imported soil must not result in a level increase of more than 100mm in

any area.

4.6.7. Import materials by hand in wheelbarrow or using a digger sited outside the

sensitive area.

4.6.8. Any excavation for planting pits must be dug using hand tools only.

4.6.9. No works will be carried out within any protected areas if the soil moisture is

of a level likely to allow compaction to occur.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 18

4.7. Installation of underground services

4.7.1. Mechanical trenching for the installation of underground apparatus and

drainage severs any roots present and can change the local soil hydrology in a way

that adversely affects the health of the tree. For this reason, particular care should

be taken in the routing and methods of installation of all underground apparatus.

Wherever possible, apparatus should be routed outside RPAs. Where this is not

possible, it is preferable to keep apparatus together in common ducts. Inspection

chambers should be sited outside the RPA.

4.7.2. Where underground apparatus is to pass within the RPA, detailed plans

showing the proposed routeing should be drawn up in conjunction with the project

arboriculturist. In such cases, trenchless insertion methods should be used:

Microtunnelling, Surface-launched directional drilling, Pipe ramming or Impact

moling (see BS5837:2012 Table 3), with entry and retrieval pits being sited outside

the RPA. Provided that roots can be retained and protected, excavation using hand-

held tools might be acceptable for shallow service runs. If this is case, the following

methodology must be followed:

4.7.3. Stages for installing services by hand within tree protection areas:

No plant machinery to be used in the area for whatever reason

1) Contact project arboriculturist to hold pre-start site meeting and

‘toolbox’ talk before starting work.

2) Remove just enough tree protection fencing to allow access to area

and facilitate trenching.

3) Remove any surface vegetation or existing hard surfaces using hand

tools.

4) Using and air-pick excavate the trench, keeping to minimum

dimensions required.

5) Roots occurring in clumps of 25 mm diameter and over are

encountered they will be retained, and kept damp by covering with

hessian (re-wetted as required). If required, these should be severed

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 19

only following consultation with an arboriculturist; as such roots might

be essential to the tree’s health and stability.

6) Feed in services.

7) Back fill trench with 200-300mm depth of excavated soil, or a mixture

of excavated and imported top-soil to BS3882 (BSI, 2007), firming

down with heels.

8) Repeat step 7 until trench is filled.

9) Re-erect tree protection fencing as per approved plan.

4.7.4. The method of excavation above, for trenching within RPAs, is using air

excavation. This tool utilises compressed air to remove soil from around tree roots

causing minimal damage and can be run off a typical site compressor. ACD can

provide details of contractors supplying air excavation services if required.

4.7.5. Alternatively, trenchless technology, such as thrust boring can be used in

some instances and is particularly effective as it can pass directly under the tree, at

a depth which is likely to avoid almost all impact on roots of the subject tree. As no

access/thrust pits will be located within the RPAs of the subject trees, the need for

arboricultural supervision is limited.

4.7.6. Reference can be made to NJUG Vol 45 for guidance, but any approach must

be approved by the project arboriculturist and brought to the attention of the local

authority tree officer.

5 National Joint Utilities Group. (2010). Volume 4: NJUG Guidelines For The Planning, Installation And Maintenance Of Utility Apparatus In Proximity To Trees (Issue 2) – Operatives Handbook. NJUG.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 20

4.8. Installation of no-dig surface

4.8.1. To ensure that tree roots, within the ground under this proposed surface,

continue to survive during and after construction a cellular system such a CellWeb6

of 75-200mm depth is to be used.

No-dig cross-section

4.8.2. Stages for Installation of the cellular confinement surface:

1) Contact project arboriculturist to hold pre-start site meeting and

‘toolbox’ talk before starting work

2) Dismantle TPF and re-erect in secondary location as shown on TPP

3) Remove existing vegetation by using a specific herbicide (as advised

by a specialist) or manual removal with hand tools only. Agreed

removal of shrubs, saplings or trees, within the protected areas of

retained trees are to be cut, or ground out to just below ground level

rather than grubbed or winched out, which can damage roots of

retained trees.

4) Retain all original ground levels after vegetation removal. No

excavation whatsoever.

6 Geosynthetics Ltd, 01455 617139, www,geosyn.co.uk

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 21

5) Remove any existing hard surfaces (paving, tarmac etc.) Hand tools

should be used if possible. If machinery is required for this operation,

it must be used only on existing surfaces or outside the protection

areas and tree canopies (approval from project arboriculturist must be

sought before using machinery). The sub base of existing surfaces or

foundations should be left in situ where possible to avoid

unnecessary root disturbance and provide a base for the new

surface.

6) Install a non-woven Geotextile (such as TreeTex T300) directly over

soil grade level (levelled where necessary, by non-compacted

washed sand) and fix in place.

7) Lay the cellular system over the Geotextile, which is secured open

under tension during the infill process with steel staples or wooden

pegs.

8) Install kerbs and edgings directly on top of existing soil grade level.

For light structures, a treated peg and board may be acceptable. For

more substantial structures, railway sleepers, haunched concrete with

road pins, drilled kerbstones, gabions or cast in situ kerbs will be

appropriate.

9) Fill the cellular system ensuring any machinery works only on already

filled areas. Typical infill consists of no fines angular granular material

20-40mm, which will remain un-compacted.

10) Cover with a non-woven Geotextile (such as TreeTex T300).

11) Install porous wearing surface.

4.8.3. Any variation to the above specification must meet the following design

criteria for low-invasive surfaces to provide the conditions for continued tree survival

and growth:

• Maintain oxygen diffusion through new surface to rooting area (5-12%

by volume7)

7 Smith, R. J. (2006). Tree Roots in the Built Environment. HSO

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 22

• Maintain sufficient passage of water to the rooting area (12-40% by

volume8)

• Avoid compaction by maintaining a soil structure sufficient to sustain

root growth (soil bulk density below 1.4g/cc9).

4.8.4. Site analysis of the soil type and its structural characteristics will be required

prior to determining the specific depth of products to be adopted for example,

footpaths normally require a depth of 75mm and, 100mm to 200mm depths are used

for residential driveways, while greater depths may be required for the passage of

heavier traffic such as for construction access and delivery vehicles.

4.8.5. If ground levels are to be raised more than 150mm this should be achieved

by the use of a granular material, which does not inhibit vertical gaseous diffusion.

For example: no-fines gravel, washed aggregate, structural soil (min. 20% sand

content) or cobbles.

8 Coder, D. K. (2000). Tree Root Growth Requirements. University of Georgia 9 Harris, C. M. (2004). Arboriculture, Tree Management of Shade Trees and Vines.

High Street (land to south of), Great Wakering Arboricultural Impact Assessment and Method Statement

______________________________________________________________________________________________ ACD Environmental Ltd Page 23

4.9. Installation of boundary fencing within protected areas

4.9.1. Stages for installing wooden fence posts:

No plant machinery to be used in the area for whatever reason

1) Contact project arboriculturist to hold pre-start site meeting and

‘toolbox’ talk before starting work.

2) Remove TPF to allow access to area.

3) Dig postholes using hand tools, avoiding damage to the protective

bark covering larger roots. Roots smaller than 25mm diameter may

be pruned back using either secateurs or a hand saw, leaving a clean

cut.

4) Damage or severance of roots above 25mm diameter must be

avoided. If roots of this size are discovered, the hole should be

relocated. If there are a large number of such roots it may be

necessary to relocate the hole by half a fence panels length and

adjust the fence panels accordingly.

5) Line hole with non-porous lining, for example durable polythene bag.

6) Insert post and fill post-hole with concrete to just below ground level.

7) Trim polythene to ground level and fill with clean topsoil.

Mark Welby Tech Cert (ArborA), Dip Arb (RFS), FArborA Director & Principal Arboriculturist 29 June 2016

LIMITATIONS OF USE AND COPYRIGHT All rights in this report are reserved. No part of it may be reproduced or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, or stored in any retrieval system of any nature, without our written permission. Its content and format are for the exclusive use of the addressee in dealing with Insert site address. Until all invoices rendered by ACD Environmental to the Client have been paid in full, the copyright of any documents, forms, statements, maps, plans and other such material will remain vested in ACD Environmental and no unauthorised use of such material may be made by the Client or any person purporting to be acting on his/her behalf. It may not be sold, lent, hired out or divulged to any third party not directly involved in this site without the written consent of ACD Environmental ©

Page | 24

Appendix: Tree Protection Plan TWEL20425-03

SI

BUS STOP

SI

BB

EC

BB

Eave

s17

.06

Ridge19.95

Eaves17.09

Ridg

e15

.53 Pa

rape

t15

.64

Eave

s14

.46

Ridge15.64

Eaves14.40

2b

2b

2b

2b

2b

2b

2b 2b 2b 2b 2b 2b 2b 2b

3b

2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 3b 3b 3b 2b 2b 2b 2b 3b 2b 2b 4b

3b

3b

3b

3b

3b

3b

3b

3b

3b

3b

2b

4b

3b

3b 3b 2b 2b 2b 2b 2b 2b 2b3b 3b 2b 2b 2b 2b 2b 2b 3b 3b 3b 3b

2b 2b

4b 3b 3b 3b 3b 3b 3b 4b 4b

4b4b

4b 4b 4b 4b

4b

3b

3b

4b

3b 3b

3b 3b 4b

3b

3b

4b2b2b2b2b2b

3b

3b 4b

4b

4b

4b

3b

3b

4b

4b

4b 3b 3b

3b

4b

3b

3b

5b

3b3b4b

4b

2b

2b

2b

2b

3b 3b4b

5b

4b4b

3b

3b

4b

4b

3b3b

4b

3b

3b

3b

4b

4b

4b

2b

4b

4b

4b

4b

4b

2b

3b

4b

4b4b

4b

5b

5b

3b

3b

4b

4b

4b

3b

2b

2b

3b

3b

1

2

3

4

5

6

7

8

9

10

11

12

131415161 718192021

222324252627282930313233

34

35

36

37

38

39

40 4142 43 44 45 46 47

48

49 5051 52 53 54 55

56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 7273 74 75 76 77 78 79 80 81

8283 84 85 86 87

88

89

9091

92

93

94

95

96

97

98

99 100

101

102

103104

105106

107

108

115

114 113

112

111

110

109118

117

116

127

126

125

124

123

122

121

120

119

128

129

130

131

132

133134

135

136

137

138

139

140

141

142

143144

145

146

147

148

149

150

151

152

153154155

156

157

158

159

160

161162

163

171

170 169

168 167

166

165

164

180179178177176175

174

173

172

10.28

10.3910.35

10.62 10.64

10.43

10.35

10.64

SITP/LP

TP TC

CL 10.39IC

TC10.19GG

10.47

10.50

10.63

10.38

10.49

10.33

10.45

10.31

TC

10.3810.40

10.4510.47

10.49

18.81RL

18.74RL

10.54

10.64

10.36

10.47

11.1911.29 11.11

11.22

11.18

11.26

11.1711.17

11.10

11.1111.14

11.21

11.16

11.08

11.00

10.97

10.95

10.96

11.03

11.03

10.99

10.98

11.08

11.10

11.24

11.16

11.06

11.11

11.09

11.12

11.09

11.0611.08

11.10

11.03

11.0711.10

11.10

10.97

10.90

10.88

10.97

11.01

11.0411.03

11.02

10.98

10.94

10.95

11.10

11.04

11.07

11.09

11.10

11.14

11.10

11.04

11.07

11.01

11.03

11.07

11.05

11.12

11.16

11.21

11.14

11.07

11.06

11.1011.01

10.87

10.94

11.07

11.27

11.19

11.13

11.11

11.07

11.06

11.03

11.03

11.03

11.05

11.0911.04

11.04

11.08

11.12

11.15

11.20

11.13

11.17

11.11

10.88

10.85

10.91

10.91

10.96

11.04

10.97

10.93

10.96

11.03

ST53

11.8311.90

11.8911.92 11.85

11.91

TP11.02

10.92

10.75

10.7710.75

10.66

11.08

10.65

10.99

10.94

11.04

10.95

10.93

9.38

9.71

9.69

9.549.59

9.80

9.56

9.35

9.19

9.12

9.02

8.94

8.93

9.05

9.18

9.08

9.25

9.39 9.23

9.24

9.35

9.87

9.41

11.66

11.73

12.14

12.09

12.20

12.189.57 9.81

9.74

9.54

9.138.42

7.90 7.76 7.66

7.57

T6

7.43

9.59

9.06

8.908.999.16

9.19

9.36

9.31

10.28

10.35

10.37

10.57

11.39

11.49

11.3111.51

11.51

11.35

11.22

9.31 9.239.21

8.938.77 8.27

8.39

7.50

8.89

8.49

9.379.50

9.229.25

9.51

8.77

8.658.738.80

8.718.73

8.70

12.42

14.41RL

14.38RL

8.67

8.698.87

8.869.12

9.219.60

9.659.56IL 9.11

10.48

10.92

11.00

12.10

12.23

12.08

12.23

12.29

12.03 12.23

10.9310.94

11.14

11.20

11.42

12.26

12.26

12.38

12.22

19.90RL

15.64RL

15.69RL

14.58

14.58

11.86

Ridge Line

Ridge Line

Ridge LineR

idge Line

Ridge Line

Ridge Line

10.70

10.50

10.47

10.65

10.75

10.71

10.65

10.66SCs

10.28

10.96

10.90

10.88

10.99

UTL - No leverage

8.62

8.61

8.56

8.58

8.47

8.51

8.47

8.39

8.33

8.35

8.36

8.33

8.31

8.31

8.308.29

8.27

8.39

8.42

8.47

8.48

8.45

8.57

8.63

8.60

8.55

8.60

8.66

8.78

8.90

8.91

8.74

8.60

8.62

8.57

8.48

8.47

8.47

8.35

8.57

8.58

8.52

8.37

8.52

8.20

8.248.27

8.438.538.54

8.658.708.71

8.73

8.77

8.86

8.90

8.98

8.99

8.95

9.01 8.90

8.808.75

8.69

8.688.66 8.65

8.58 8.498.41

8.308.22 8.32

8.32

8.388.358.318.388.408.47

8.56

8.638.66

8.71

8.78

8.878.92

9.05

9.03

9.36 8.938.84

8.798.79

8.678.64

8.60

8.53 8.40 8.34 8.24 8.238.27

8.70

8.41

8.27

8.28

8.28

8.27

8.28

8.29

8.27

8.26

8.34

8.42

8.46

8.48

8.41

8.46

8.52

8.63

8.61

8.74

8.63

8.52

8.37

8.29

8.27

8.18

8.13

8.12

8.10

8.13

8.11

8.10

8.11

8.04

8.20

8.14

8.17

8.16

8.12

8.12

8.16

8.17

8.11

8.11

8.10 8.11

8.05

8.08

8.08

8.08

8.11

8.13

8.14

8.23

8.31

8.34

8.37

8.40

8.48

8.47

8.53

8.63

8.57

8.63

8.52

8.59

8.49

8.39

8.37

8.29

8.24

8.23

8.21

8.15

8.07

8.06

8.07

8.06

8.02

7.99

8.00

7.96

7.96

7.95 7.927.96

7.78

7.89

7.99

8.06

8.07

8.11

8.04

8.05

8.03

8.03

8.02

8.07

8.14

8.19

8.19

8.25

8.33

8.62

8.53

8.38

8.12

7.60

8.16

8.207.48

8.09

8.15

8.25

7.97

7.61

8.247.94

7.47

8.127.86

7.34

8.10

7.83

8.07 7.79

7.39

8.13

8.05 7.93 7.23

8.07 7.92

7.30

8.127.86 7.

36

8.11 7.91

7.35

8.007.91

7.26

8.03 7.92 7.23

8.04

7.95

8.02

7.78

7.29

7.83 7.72 7.28 7.94

7.95

7.31

7.938.07

8.08 8.05

7.92

7.93

8.09

8.13

8.15

8.218.05

8.318.12

8.408.04

8.428.13

8.05 8.40

8.32

8.31

8.28

8.33

8.35

8.37

8.26

8.32

8.32

8.12

8.16

8.19

8.22

8.21

8.21

8.23

8.28

8.31

8.27

8.18

8.10

8.00

7.95

7.87

8.05

7.99

8.00

8.11

8.228.14

8.08

8.08

8.11

8.08

8.14

8.22

8.25

8.27

8.31

8.35

8.36

8.35

8.34

8.27

8.20

8.13

8.07

8.288.22 8.33 8.39

8.56

8.20

8.27

8.31

8.25

8.20

8.16

8.15

8.16

8.08

8.01

8.01

8.03

8.06

8.15

8.24 8.08

8.16

8.06

8.02

8.07

8.07

8.00

8.10

8.04

8.00

7.92

8.00

8.10

8.14

8.22

8.23

8.22

8.26

8.33

8.31

8.40

8.42

8.40

8.50

8.327.297.44

7.08BL

6.87BL

7.28

8.45

8.52

8.12

8.32

8.29

8.24

8.29

8.27

8.36

8.30

8.14

7.97

8.01

8.09

8.15

8.20

8.12

8.09

8.05

7.88

7.83

7.89

7.88

7.90

8.02

7.96

7.83

7.86

7.83

7.70

7.72

7.77

7.75

7.717.60

7.74

7.83

7.99

8.06 7.89

7.82

7.96

7.82

7.66

7.677.57

7.637.77

7.90 7.81

8.22 8.08

8.45

8.35

8.31

8.41

8.31

8.36

8.26

8.01

7.91

8.01

8.10

8.22

8.25

8.29

8.278.128.048.08

8.08

7.40

8.13

8.288.31

8.44

8.44

8.54

8.56

8.45

8.39

8.77

8.588.57

7.35

7.44

6.96BL

7.24

8.44

8.45

8.95

8.89

8.91

9.15

9.11

9.25

9.18

9.389.19 9.16

8.99

9.219.14

9.24

9.65

9.69

9.76 9.38

9.60

9.58

9.579.50

9.57

9.23

10.51

10.87

8.88 8.52

8.90

8.94

8.91

9.07

9.16

9.26

9.17

9.13

8.77

9.38

9.10

9.12

8.94

8.91

8.87

8.87

8.86

8.81

8.818.85

8.97

9.14

9.25

9.33

9.29

9.15

9.35

9.31

9.17

9.13

9.13

9.28

9.34

9.37

9.39

9.31

9.19

9.10

8.96

9.17

9.37

8.87

9.21

9.30

9.54

9.06

9.31

9.46

9.14

9.71

9.51

ST42

ST43

ST41

RM01

RM02

RM03

RM04

RM05

RM06

RM07

RM08

RM09

RM10

RM11

ST45

8.26

8.38

8.28GG

8.18GG

8.10

8.10

TP

8.308.32

8.328.36

8.38

8.35

8.348.32

8.21

8.278.23

8.278.27

8.288.27

8.36

8.448.46

8.36

8.29

8.30

8.33

8.348.33

8.368.338.40

8.37

8.458.41

8.438.44

8.52

8.33GG

8.29GG

TP

8.33

8.45

8.35

8.47

8.32

8.35

8.32

8.42

8.38

8.25

8.33

8.31

8.42

8.33

8.35

8.40

8.52

8.47

8.57

8.58 8.578.51

8.47

8.59 8.58

8.47

8.438.43

8.39 8.308.31

8.30 8.30

8.348.34 8.37

8.41 8.418.44 8.44

8.488.44

8.412 GVs

CL 8.43MH

SV

8.408.42

SC8.458.428.47

8.44

TC

8.33GG

8.31GG

SI 8.46

8.39

LP8.33

8.23GG

GVTC

SC8.78 8.82 8.80

SCs8.69 8.65 8.65 8.64

8.54 8.56 8.528.55

CL 8.45MH

8.30

8.388.39

8.418.41

8.42

8.44

8.43

8.41

8.428.42

8.41

8.38

8.45

8.468.46

8.458.45

8.448.46

8.478.508.51 8.49

8.45

8.45

8.45

8.46

8.43

8.41

8.39

8.34

13.23

13.21

13.39

14.2914.70

18.64RL

16.14RL

15.54RL

15.24RL

15.56RL

TP

TP

8.72

8.71

TC

8.32

8.46GG8.47

8.488.60

8.51

8.578.62

8.678.63

8.778.77

8.72 8.66

8.628.61

8.57

8.64

8.57

8.588.57

8.598.64

8.73

8.54

LP8.558.57

8.60

8.568.568.59

TP

TC

CL 8.64IC

SC

8.698.68

8.678.68

8.64

8.65

8.708.72

8.70

8.77

8.80

8.83 8.88

8.77

8.71

8.648.668.628.588.63

8.648.64

8.74

8.42GG

8.428.45

8.53

8.65

8.55

8.57

8.61

8.73

8.648.76

8.69

8.81

8.88 8.74 8.74 8.83 8.76 8.718.64

8.83

8.68

8.97

8.68 8.71

8.93

8.97

8.70 8.65 8.61 8.62

8.86

8.608.60 8.58

8.56

8.728.818.92 8.90

LP

9.038.96

8.918.80

8.999.05

8.988.958.97

9.22

8.928.90

8.988.978.968.978.88

8.86 8.87 8.888.88 8.82

8.77

8.518.538.568.578.578.588.608.608.628.638.658.668.688.698.708.708.738.748.76

8.798.808.788.79

8.798.808.76

8.78

LP

TCFH

3 SVs

BB

BX

8.788.88

8.989.00

8.918.81

8.94 8.92 8.90

8.91

8.938.96

8.88 8.78

8.77 8.77 8.85

8.938.94

9.019.049.05

8.68

8.72

8.75

8.81

8.818.808.89

8.92

8.78GG

EC

8.42

16.75RL

16.85RL

16.64RL

17.43RL 17.10

RL 17.16RL

14.66 14.55

14.6914.6114.5914.77

14.4914.41

14.35

8.83

8.84

8.86

8.87

8.85

8.88

8.94

9.06

8.95

9.079.03

8.98

9.04

9.02

8.99

8.94

9.009.01

8.958.96

9.049.03

9.019.06

9.12

9.06

9.16

9.14

9.21

9.09GG

8.94GG

8.93 8.938.88 8.86

GG

8.84 8.86 8.838.85 8.83 8.83

8.80 8.78 8.768.76 8.72

8.74 8.728.67

8.69 8.66 8.64

8.758.768.77

8.788.78

8.798.81

8.828.82

8.848.84

8.878.878.88

8.778.74 8.71

8.748.71

8.71 8.708.65

8.668.64 8.64

CL 8.78MH

8.72

8.748.77

8.828.838.86

8.968.87

8.888.89

9.008.86GG

8.91

9.028.93

8.94

8.92GG CL 9.01

MH

8.96

9.088.97

9.099.00

9.139.06

9.109.129.26

LP

LP

8.828.768.748.818.938.818.868.968.988.918.919.009.03

9.018.928.959.029.038.94

9.059.069.079.018.989.029.12

9.179.189.099.109.099.09

9.169.199.199.259.269.26

8.99

8.94

BB

8.768.87

8.928.87

8.78

8.818.808.838.878.85

8.878.84

8.958.95 8.94

8.94 8.938.93 8.92

8.91

TP

8.968.978.988.999.019.029.039.039.049.059.069.079.079.079.069.069.079.089.109.109.139.159.169.179.209.219.239.249.259.26

8.78

8.91

8.81 8.79

8.89

8.74

8.88

8.88

Wall 0.8h Wall 0.6h

Wall 0.6h

Wall 0.7hWall 0.4h Wall 0.6h

14.2213.9914.3114.4714.5714.6514.83

14.74

14.7914.82

17.63RL

17.60RL

17.91RL

18.01RL 17.98

RL17.88RL

17.75RL

17.61RL

16.44RL

16.73RL

9.06

9.31

9.30

9.31

9.22

9.12

9.08

9.07

8.98

8.96

9.33

9.06

9.03

9.14

9.05

9.14

9.17

9.20

9.34

9.23

9.34

9.35

9.29

9.18

9.10

8.96

9.25

9.37

16.95RL

16.62RL

13.27RL

11.89

14.39

14.49

7.88

7.73

7.81

7.86

7.82

7.76

7.90

7.95

8.08

8.15

7.99

7.76

7.79

7.73

7.98

8.62

8.42

8.408.36

8.28

8.32

8.36

8.33

8.29

8.49

8.54

8.39

8.35

8.30

8.24

8.068.30

8.24

8.36

8.42

8.71

8.51

7.77

8.17

7.97

8.23

8.50

8.35

8.79

8.60

7.50

7.22

8.55

7.50

7.23

6.75

7.31

8.39

8.23

7.46

6.66

6.98

7.35

8.07

8.48

9.01

8.56

8.27

8.27

7.56

8.58

8.478.668.618.488.70

8.66

8.67

8.55

8.55

8.608.73

8.65

8.55

8.61

8.958.88

8.92

8.89

10.44

9.13

9.07

8.94

8.94

9.17POPO PO

PO

PO

Top of Fence Line

11.54

8.87

8.86

8.82

8.82

8.80

8.92

8.038.06

8.37

8.28

8.128.18

8.28

8.197.59

7.72

8.40

8.61

8.47

8.28

8.278.25

8.30

8.29

8.26 7.58

7.57

7.56

8.03

8.43

8.14

7.54

7.18

7.26

8.48

8.32

8.24

8.48

8.37

8.51

8.27

8.40

8.70

8.73

8.75

8.86

8.77

8.79

8.73

8.69

8.80

OHL

OHL

OHLs

OH

L

OHL

OHLsOHLs

OHLs

OH

LOHLOHLs

OHLsOHLs

OH

Ls

OHL

s

SCs

Wall 0.6h

TCGV

TC

8.28 OHL O

HLs

BUS STOP

Wall 0.6h

Arable Field

Arable FieldArable Field

Arable Field

Arable Field

Arable Field

Arable Field

Arable Field

Arable Field

Arable Field

Arable Field

8.548.53

UTS Wall - Behind Vegetation

UTS Wall - Behind Vegetation

UTS Levels - Private Property (from Local Information)

UTS Levels - Private Property (from Local Information)

UTS Levels - Private Property (from Local Information)

UTS Levels - Private Property (from Local Information)

UTS Levels - Private Property (from Local Information)UTS Levels - Private Property (from Local Information)

Ridge LineRidge L

ine

Ridge L

ine

Ridge L

ine

Ridge L

ine

Ridge Line

Ridge Line Ridge Line

Ridge Line

Ridge Line

Ridge LineRidge Line Ridge Line Ridge Line

Ridge Line

Ridge Line

Ridge Line

Ridge Line

8

8

8

8

8

8

8

8

8

8

9

9

9

99

9

9

9

9

9

9

9

9

10

10

1010

10

10

10

10

10

11

8.61

8.67

8.69

8.588.63

8.65

8.83

8.88

8.93

8.89

8.91

8.90

8.75

8.82

9.97

9.96

10.2710.18

10.3810.37

10.74

10.82

10.80

10.81

8.69

8.66

8.61

8.77

8.77

14.40RL

10.86 10.69

10.84

10.87

10.95

10.67

10.42

8.67

8.75

8.88

8.85

8.56

8.51

8.36

8.388.36

10.26

10.27

10.24

10.34

8.438.37

8.54

8.55

8.64

8.71 8.428.33 8.22

8.10

8.43

8.47 8.54 8.378.39 8.33

8.21

8.16

8.36

8.22

8.11

8.008.00

8.11

19.07RL

19.44RL

17.76RL

17.71RL

18.80RL

15.37

14.73

15.48

14.70

14.72

14.97 14.8514.76

14.76

18.22RL

17.31RL

18.12RL

17.69RL

17.93RL

17.09

16.8717.77

RL

8.73

8.70

8.788.71

8.788.64 8.57

10.1910.36

10.2710.56

10.5310.02

10.069.98

10.07

10.61 10.34

10.4710.4010.42

10.39

9.77

9.96

10.01

10.41

8.78 8.728.70

9.08

10.74

10.82

14.48

14.57

15.40RL

18.74RL

18.78

RL

18.84RL

18.88RL

16.05

16.05

15.94

11.43

10.5810.57

10.48 10.43

10.33

12.53

8.98

8.92

8.73

8.82

8.56

8.50

8.59 8.44

8.41

8.52

8.49

8.66

10.3410.61

10.39

10.16

8.61

10.36

10.67

10.7910.69

10.7310.7510.63

10.6910.62

10.41

9.43

9.049.28

9.85

9.87

9.529.43

9.3710.77

10.75

10.74

10.74

10.75

10.72 9.24

9.38

9.21

9.178.98

9.04

10.8710.89

9.18

9.61

9.29

9.19

9.20

9.30

9.45

18.27RL

14.84

18.91RL 18.82

RL

16.10

16.21

8.298.33

8.218.28

8.29

PO

POPO

PO PO

PO8.37

9.19

9.60

9.41

8.78

PO 8.93

8.77

8.26

8.33 8.36

8.78

8.60

8.61

8.44

8.54

9.399.289.21

7.78

7.51

9.049.21

7.66

9.49

9.419.44 9.39 9.42

9.36 9.35

9.389.39 9.41 9.56 9.49

9.39

9.25

9.05

9.55 9.55 9.41

9.44 9.44

9.44 9.43 9.47

9.43 9.46

9.48 9.35 9.32 9.269.099.079.229.13

9.038.71

7.66

8.20

8.04

7.43

8.32

8.97

8.528.59

8.138.16

8.098.23

8.168.238.248.488.46

8.34

8.46 8.558.42

8.288.16

8.11

18.11RL

17.82RL

12.52RL

11.58

11.73

8.097.96

8.02

7.98

8.058.06 7.99 8.05

8.05

7.937.90

7.277.32

7.27

9.049.33

9.31 9.23

9.22

9.139.02

9.009.20

9.069.05

10.059.95

10.10

10.24 10.08

10.3010.29

16.42RL

16.69RL

14.21

14.0014.11

8.00

8.318.14

8.17

8.148.02

8.03

9.09

9.04

9.26 9.32 9.27

9.35

9.289.63 9.60

9.469.46

8.39

8.128.15

8.23

8.128.12

8.25

8.94

9.64

11.97RL

11.08

8.09

8.22

8.08

8.01

8.06

8.07

8.17

9.23

12.01RL

13.22RL

16.90RL

11.09

11.77

12.0511.23

8.05

7.97

8.13

8.14

8.16

8.16

8.188.12

7.98

7.91

7.74

7.70

7.92 7.81

7.85

7.68

10.56

10.52

OHLs

Sub Sta

40

TOW

NFIELD

Mizaire

7

MASON WAY

4

Oshaw

a

Station

3

WALK

Factory

289

4

39

277

Pond

El Sub Sta

315

11

Pond

325

135

Mylah

1

33

22

Shelter

2

HORNER'S CORNER

5

337305

Zillah Lodge

Redlands

14

Villas

1

St Anton

4

HIGH STREET

Mandalay

6

The Cuddy

Boonwood

OLD

SCH

OO

L MEAD

OW

1

Townfield

8

Track

El

35

1

Beeleigh

GP

Verbrymar

21

Track

38

12

17

Police

T9 - B1Hornbeam

T2 - C1Bay

T3 - C1Silver Birch

T4 - C1Common Oak

T6 - A1Weeping Willow

G7 - C2Silver Birch, Sycamore

G7 - C2Silver Birch, Sycamore

G8 - C2Leyland Cypress

G8 - C2Leyland Cypress

G8 - C2Leyland Cypress

G10 - C2Silver Birch,Sycamore

G11 - C2Leyland Cypress

G12 - C1Crack Willow, Hawthorn,Blackthorn

G13 - C1English Elm, Bramble,Elder, Blackthorn

G11

G13 - C1English Elm, Bramble,Elder, Blackthorn

G13 - C1English Elm, Bramble,Elder, Blackthorn

G13 - C1English Elm, Bramble,Elder, Blackthorn

G12 - C1Crack Willow, Hawthorn,Blackthorn

G12 - C1Crack Willow, Hawthorn,Blackthorn

G12 - C1Crack Willow, Hawthorn,Blackthorn

G12 - C1Crack Willow, Hawthorn,Blackthorn

G12 - C1Crack Willow, Hawthorn,Blackthorn

G11 - C2Leyland Cypress

G11 - C2Leyland Cypress

T5 - A1Walnut

G10 - C2Silver Birch,Sycamore

G10 - C2Silver Birch,Sycamore

G10 - C2Silver Birch,Sycamore

Trees within G12 that are outsidethe fencing line are to be removedas required.

T1 - B1Weeping Willow

5 10 15 20 25m0

Date Details Drawn

drawn: checked:dwg no:

scale:

drawing:date:

scheme:

June 2016

JS

High Street (land to southof), Great Wakering

Tree Protection Plan

1:500@A0

MW

Rev

client: Taylor Wimpey

AC

D

Copyright of ACD. All rights described in Chapter IV of the Copyright, Designs andPatents Act 1988 have been generally asserted: 2015. Copyright of this plan remains

with ACD until all fees have been paid in full.

The original of this drawing wasproduced in colour- a monochrome

copy should not be relied upon.

TWEL20425-03

ACDEcology

ArboricultureLandscape Architecture

ACD at these offices:Rodbourne Rail Business Centre, Grange Lane,

Malmesbury, SN16 0ESTel: 01666 825646

Courtyard House, Mill Lane, Godalming, GU7 1EYTel: 01483 425714

Suite 6, Crescent House, Yonge Close, Eastleigh, SO50 9SXTel: 02382 026 300

email: [email protected]

Archaeology

ENVIRONMENTAL

WimpeyTaylor

Foot traffic Scaffolding

Protectivefencing

Ground undisturbed and protected by geotextilefabric , woodchip and side-butting scaffold boards

Protectedarea

Platform levelat first lift ofbrickwork

Protectedarea

Protectivefencing

For pedestrian movements only, a single thickness of scaffold boards should be placed eitheron top of a driven scaffold frame, so as to form a suspended walkway, or on top of acompression-resistant layer (e.g. 100 mm depth of woodchip), laid onto a geotextile.

For pedestrian operated plant up to a gross weight of 2 t, proprietary, inter-linked groundprotection boards should be placed on top of a compression-resistant layer (e.g. 150 mm depthof woodchip), laid onto a geotextile.

For wheeled or tracked construction traffic exceeding 2 t gross weight, an alternative system(e.g. pre-cast reinforced concrete slabs) should be employed to an engineering specificationdesigned in conjunction with arboricultural advice to accommodate the likely loading to which itwill be subjected.

RESTRICTIONS WITHIN TREE PROTECTION AREASInside the exclusion area of the fencing, the following shall apply:

• No mechanical excavation whatsoever• No excavation by any other means without arboricultural site supervision• No hand digging without a written method statement having first been approved by

the project arboriculturist.• No lowering of levels for any purpose (except removal of grass sward using hand

tools)• No storage of plant or materials• No storage or handling of any chemical including cement washings• No vehicular access• No fire lighting

In addition to the above, further precautions are necessary adjacent to trees:• No substances injurious to tree health, including fuels, oil, bitumen, cement

(including cement washings), builders sand, concrete mixing and other chemicalsshall be stored or used within or directly adjacent to the protection areas of retainedtrees

• No fire shall be lit such that flames come within 5m of tree foliage.

TREE TO BE REMOVED

ROOT PROTECTION AREA (RPA) FOR RETAINED TREES

A CATEGORY TREEB CATEGORY TREEC CATEGORY TREEU CATEGORY TREE

NO-DIG SURFACECellular confinement system (CCS) to be used to create this area of hardsurface, above the existing ground level. Topsoil to be retained. Depth ofCCS to be 50-75mm for pedestrian surfaces and 100-200 for vehicularsurfaces. Surface to be porous to approved details and specifications. Tobe installed under arboricultural supervision. All specifications subject toengineering design.

WHY TREE PROTECTION IS NEEDED1) Soil compaction kills roots- caused by plant movement and storageof materials within protected areas.2) Trenching severs roots- many small roots grow within the top600mm of soil. Even the removal of the top 200mm can cause damage.3) Soil pollution kills roots- Dripping fuel storage or cement washingscan contaminate the soil resulting in root death.4) Raising & lowering levels kills roots- the soil used to increaselevels can compact the underlying soil (see point 1). Lowering levels willremove roots causing damage to the tree.5) Bark and branch damage- bark removal and branch damage canallow disease and fungi into the tree.The impact of any of the above can take years to show- trees canhave huge reserves of food and water.

CONSTRUCTION EXCLUSION ZONE

Root protection areas (RPA) of retained trees within which all construction activity is restricted.

All trees that are being retained on site must be protected by barriers and/or ground protectionbefore any materials or machinery are brought onto the site, and before any demolition,development or stripping of soil commences. Where all activity can be excluded from the RPA,vertical barriers must be erected to create a construction exclusion zone. Where, due to siteconstraints, construction activity cannot be fully or permanently excluded in this manner from allor part of a tree’s RPA, appropriate ground protection can be installed.

DEFAULT POSITION FOR THE TREE PROTECTION BARRIERS.

BS5837:2012 Figure 2- barrier specification

GROUND PROTECTIONWhere the set-back of the tree protection barrier would expose unmade ground to constructiondamage, new temporary ground protection should be installed as part of the implementation ofphysical tree protection measures prior to work starting on site.

Examples of alternative barrier designs can be found in the method statement. Should analternative design be more viable and appropriate, it must be agreed with the projectarboriculturist before its implementation.

1 Standard scaffold poles2 Heavy gauge 2m tall galvanized tube and weld mesh infill panels3 Panels secured to uprights and cross-members with wire ties4 Ground level5 Uprights driven into the ground until secure (minimum depth 0.6m)6 Standard scaffold clamps

5

4

6

3

1

2 m

3 m

4

4

4

6

6

6Original ground

level level

Peg and board edging

Top soil toBS3882:2007

Depressionsand soft spots information to befilled with sharpsand to levelsrequired

Porous surface to finish

TreeTex T300 non-woven geotextile orsimilar approved laid over formation

CCS/Cellularconfinement system(Geosynthetics CellWebor similar approved)

Cells to be filled with 20-40mm clean graded angularstone to manufacturers details and specifications

TreeTex T300 geotextile or similar laid over CellWeb

Head Office

Rodbourne Rail Business Centre Grange Lane Malmesbury SN16 0ES

Tel: 01666 825646

Surrey Office

Courtyard House Mill Lane

Godalming GU7 1EY

Tel: 01483 425714

Hampshire Office

Suite 6 Crescent House

Yonge Close Eastleigh

SO50 9SX

East Anglia Office PO Box 1272 CAMBRIDGE

CB1 0YR

Tel: 07825 868654

Email: [email protected] Website: www.acdenvironmental.co.uk

ECOLOGY * ARBORICULTURE ARBORICULTURAL SITE MONITORING AND SUPERVISION * ARCHAEOLOGY

LANDSCAPE & VISUAL IMPACT ASSESSMENT * LANDSCAPE DESIGN & PLANNING LANDSCAPE AUDIT * PROJECT MANAGEMENT * EXPERT WITNESS

LANDSCAPE MANAGEMENT