Lesley Demense Public Consultation

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TREE PROTECTION The existing trees and boundary hedges are to be retained and incorporated within the proposed landscaping scheme. Where vehicular or pedestrian access for construction operations may take place within RPA the possible effects of construction activity should be addressed by a combination of barriers and ground protections. The blue line on the proposed site layout plan indicates the position of the proposed vertical barrier to protect trees during the construction phase of the works and assure their long term vitality. The outline for the protective fence will concur with the vast majority of the radius of the RPA and this area shall be known as the Construction Exclusion Zone (CEZ). This vertical barrier should be erected and installed before any material and machinery are brought onto the site and before any demolition, development or stripping of soil commences. Once erected the barriers should not be removed or altered without prior recommendation and approval of the planning authority. The fencing should be at least 2.3m high, comprising of a vertical and horizontal scaffolding framework, well braced to resist i mpacts, with vertical tubes spaced at mini mum interval of 3m. Onto this, weldmesh panels should be securely fixed with wire or scaffold clamps. Weldmesh panels on rubber or concrete feet should not be used as they are not resistant to i mpact (as BS 5837:2012). The diagram below illustrates a typical detail of a protective barrier. This type of construction is preferred because it is readily available, resistant to i mpact, can be re-used and enables inspection of the protected area. Where scaffolding is to be established within the 'zone of protection' surrounding retained trees, the existing undisturbed ground surface will be protected by a layer of sharp sand, approx. 50mm thick, overlaid with a geotextile membrane. Stout planks, such as closely side-butted scaffold boards, will; be laid over the geotextile membrane and scaffolding will be constructed on these planks (as BS5837:2012). Additional stays, as directed by a competent person, will be considered where scaffolding is constructed on suspect or un-consolidated ground. Adequate protective fencing, as BS5837:2012, will be maintained between scaffolding and adjacent trees. The barrier should be removed prior to soft landscaping operations. SCAFFOLDING WITHIN ZONE OF PROTECTION AS PER BS 5837:2012

residential development at HIGH STREET, HOLYWOOD

12.00

11.50

12.50

SET BACK TO FACILITATE NEW PERMEABLE HARD STANDING TO FORM PRIVATE ACCESS ROAD.

13.00

11.0

T112

slope max 1 to 2

11.35

11.50

T111

13.89

11.0

11.80

slope max 1 to 2

SIGHTLINE 2.4 x 70

block 2 FFL=11.5

T110

11.45

BICYCLES

T117

11.35

BINS

T109

13.50

1 5

T118

T113

11.50

T139

T114

PCP

11.0

T116

11.35

8 CARPARKING SPACES

13.00

12.0

T119

T115

PRIVATE ROAD

T136

T138

11.95

12.0

T120

T140

10.00

11.50

12.50

10.50

11.50

+8.97

10.50

12.00

9.50

11.00

10.50

2.0m FOOTPATH

T137

11.00

10.00

11.5011.50

9.50

+9.05

11.50

SET BACK TO FACILITATE NEW PERMEABLE HARD STANDING TO FORM PRIVATE ACCESS ROAD.

11.00

T134

T186

T121

10.50

T127

+9.13

T135

T141

PCP

T129

2.0m FOOTPATH

10.50

T128

T131

+9.21

AMENITY OPEN SPACE

T123

OUTLINE OF EXISTING HARDSTANDING SHOWN AS DASHED LINE

T183

11.00

T126

T124

T156

T185

T130

T106

T105

+9.41

T182

11.00

T157

SIGHTLINE 1.5 x 33

T108

T125

T154

SET BACK TO FACILITATE REMOVAL OF EXISTING HARD STANDING SURFACE COURSE. CONSTRUCTION OF NEW PARKING ARRANGEMENT USING PERMEABLE HARD STANDING AND SOFT LANDSCAPING RESULTING IN AN OVERALL INCREASE IN SOFT LANDSCAPING WITHIN RPA.

T155

T104

T107

T181

T184

T099

T180

13.07

11.00

T153

T144

11.00

3,00

+9.81

T158

T167

T178

T101

T152

T179

T159

T168

13.59

SIGHTLINE 2.4 x 70

T171

3,00

T100

12.00

T166

13.84

T172T173

T164

8.00

T170

T103

T160

9.00

T145

12.00

T161 T162 T163

T174 T175

T143

T151

T150

6,00

T102

+10.41

T165

14.00

8.00

T169

12.00

13.15

T098

3,00

14.00

6,00

WATERCOURSE BUFFER

PCP

T096

15.24

block 1 FFL=13.3

12.50

T147 T148

15.15

T142 SIGHTLINE 1.5 x 33 6,00

9.00

T095

T094

T149

13.00

+11.06

PCP

3,00

C2 FFL=15.0

6 13

T097

E1 FFL=15.6

BINS

T093

13.15

9 10 CARPARKING SPACES

T090 - U Sycamore

21 3 CARPARKING SPACES

T090

T187

C1-h FFL=15.3

13.15

BICYCLES

T089

T092

E FFL=15.6

+11.71

T176

T091

13.15

6,00

T088

T086

SIGHTLINE 2.0 x 33

SIGHTLINE 1.5 x 33

6,00

+12.29

+14.42

+14.09

T146

D FFL=15.7

T087

+14.60

V +13.64

T177

+12.74

PRIVATE SHARED ROAD

6,00

SIGHTLINE 1.5 x 33

T084 T085

+14.80

2.0m FOOTPATH

+13.19

SIGHTLINE 2.0 x 33

+15.00

T080 T081

D2 FFL=16.0

T074

+15.20

D FFL=14.3

T083

E1 FFL=16.0

+15.85

2.0m FOOTPATH

+15.40

T069

T082

T079

SIGHTLINE 2.0 x 33

6,00

T073

D1 FFL=14.8

+15.60

T078

T077

T076

T072

B FFL=15.4

+15.95

T071

+15.80

C1 FFL=16.0

6,00

T070

T065

T066 T066 - U Sycamore T067

C-h FFL=15.5

+16.00

WATERCOURSE BUFFER

OUTLINE OF EXISTING HARDSTANDING SHOWN AS DASHED LINE

A FFL=16.0

T063

T062

6,00

T061

V +16.05

6,00

C FFL=16.0

T002

WILDLIFE CORRIDOR

2.0m FOOTPATH

T032 T032 - U Silver Birch

6,00

16.09

+16.15

T004

E FFL=16.0

2.0m FOOTPATH

T059

T005

6,00

T057

T006 T007 T008

T056

D3 FFL=16.0

15.01

T031

+16.25

T009

E1 FFL=16.1

3,00

+16.27

T010

LEGEND:

T012

T053

OUTLINE OF EXISTING HARDSTANDING SHOWN AS DASHED LINE

15.14

T011

T013 T014

ACCURATE CROWN SPREAD

T052

6,00

ALL SURFACING PROPOSED FOR ADOPTION BY DfI Roads TO BE CARRIED OUT AS PER ENGINEER DRAWINGS. PROPOSED LEVELS TO MATCH EXISTING.

T033

T016

ROOT PROTECTION AREA

WILDLIFE CORRIDOR

T177

T047 T047 - U Sycamore

T018 T019

14.92

T017

PROPOSED SET-BACK BARRIER TO EXISTING TREES TO BE RETAINED ALL NON DfI Roads ADOPTED PERMANENT SURFACING WITHIN THIS AREA TO BE CARRIED OUT AS PER DETAIL 01 LOCATED ON THIS DRAWING. To facilitate construction required within the protection area of trees to be retained. A set-back in the alignment of the tree protection barrier will be used. In such areas, suitable existing hard surfacing that is not proposed for re-use as part of the finished design should be retained to act as temporary ground protection during construction, rather than being removed during demolition. The suitability of such surfacing for this purpose should be evaluated by the project arboriculturist and an engineer as appropriate. Where the set-back of the tree protection barrier would expose unmade ground to construction damage, new temporary ground protection should be installed as part of the i mplementation of physical tree protection measures prior to work starting on site. New temporary ground protection should be capable of supporting any traffic entering or using the site without being distorted or causing compaction of underlying soil. a) for pedestrian movements only, a single thickness of scaffold boards placed either on top of a driven scaffold frame, so as to form a suspended walkway, or on top of a compression-resistant layer (e.g. 100mm depth of woodchip), laid onto a geotextile membrane; b) for pedestrian-operated plant up to a gross weight of 2 t, proprietary, inter-linked ground protection boards placed on top of a compression-resistant layer(e.g. 150mm depth of woodchip), laid onto a geotextile membrane; c) for wheeled or tracked construction traffic exceeding 2 t gross weight, an alternative system (e.g. proprietary system or pre-cast reinforced concrete slabs) to an engineering specification designed in conjunction with arboricultural advice, to accommodate the likely loading to which it will be subjected. In all cases, the objective should be to avoid compaction of the soil, which can arise from the single passage of a heavy vehicle, especially in wet conditions, so that tree root functions remain uni mpaired. NOTE: the ground protection might comprise one of the following:

T048

TREE TAG NUMBER

14.84

T050

T063 T187

- indicates tree category B - indicates tree category C

T020

T049

T044

T021

T030

T046

T043

EXISTING TREES TO BE REMOVED TO FACILITATE DEVELOPMENT WITHOUT EXISTING TPO . TREE NOS: 145, 146

T045

T146

122 UPPER LISBURN ROAD, FINAGHY, BELFAST BT10 0BD t. 02890 301130 e. admin@cooganco.co.uk

T036

T038

T042

T037

T022

POSITION, NUMBER AND ACTUAL CROWN SPREAD OF TREE WITHOUT EXISTING TPO TO BE FELLED ON THE BASIS OF CURRENT HEALTH AND CONDITIONS. Ref. to Tree Survey Report from 27th March 2020 TREE NO: 32, 47, 66, 90.

T034

T025

T066

P R O J E C T

T I T L E

T029

T023

RESIDENTIAL DEVELOPMENT AT 160 HIGH STREET HOLYWOOD

Notes: 1. Herbicide: According to BS5837:2012 "The use of herbicides in the vicinity of existing trees should be appropriate for the type of vegetation to be killed, and all instructions, warnings and other relevant information from the manufacturers should be strictly observed and followed. Care should be taken to avoid any damaging effects upon existing plants and trees to be retained, species to be introduced, and existing sensitive habitats, particularly those associated with aquatic or drainage features." 2 . Granular Fill: Open graded sub-base, clean angular stone Type 4/20 or Type 20/40. Please refer to BS7533-13:2009 3. Refer to Geosynthethics Cell web TRP Installation Guide for further information. D. The infill material must be a clean angular stone, Type 4/20mm or Type 20/40mm Do not use M.O.T type 1 or crushed stone with fines for tree root protection. Mini mum 25mm overfill of clean angular stone when used in conjunction with a hard surface. E. Excavations for kerbs and edgings should be avoided within the RPAs. A driven peg and ti mber edging board is favourable within RPAs, SUBJECT TO CIVIL ENGINEER APPROVAL. F. All surfaces in Root Protection Areas must be porous. Surfaces can include porous block paving, porous asphalt, loose gravel, grass and gravel retention systems, resin bound gravel, ETC. GEO-CELL SURFACING METHODOLOGY A. Prepare the Surface by removing the surface vegetation using appropriate hand held tools or herbicide as required. B. Lay out the Treetex Non-Woven Geotextile over the prepared area, overlaying the edges of the required area by 300mm. C. Lay out the Cell web TRP on-top of the Treetex and pin in place using the supplied J pins as required. Cut and join cells as required.

T040

3,00

3m DISTANCE FROM EDGE OF THE RPA OR THE CROWN SPREAD (which ever is greater) OF THE TREE

T028

T024

D R A W I N G

T I T L E

T026

TREE CONSTRAINTS PLAN

6m DISTANCE FROM EDGE OF THE RPA OR THE CROWN SPREAD (which ever is greater) OF THE TREE

6,00

NOTE: DETAIL TO BE READ IN CONJUNCTION WITH GEOSYNTHETICS TECHNICAL RECOMMENDATION SPECIFICATION TO BE CONFIRMED BY ENGINEER

5. SUB-BASE CLEAN ANGULAR STONE 6. EDGE RESTRAINT 7. TOPSOIL GRADED TO TIE IN WITH SURROUNDING LEVELS 8. EXISTING GROUND LEVELS RETAINED

1. POROUS SURFACING - FOR EXAMPLE BITMAC / RESIN BOUND / GRAVEL ETC. 2. TREETEX T300 GEOTEXTILE FOR SEPARATION 3. OVERFILL CLEAN ANGULAR STONE 4. CELLWEB TRP 75-200MM INFILL CLEAN ANGULAR STONE TYPE 4-20mm

SCALE

DATE

CHK'D

MAY 2020

1:250@A0

PROPOSED PROTECTIVE BARRIER TO EXISTING TREES TO BE RETAINED

DWG NO.

DETAIL 01 - PERMEABLE SURFACING WITHIN RPA OF EXISTING TREE TO BE RETAINED

19-167-03.2

NOTE: REFER TO TREE SURVEY REPORT SUPPLIED BY Andrew Boe Bsc. (Hons), March 27th 2020 FOR FURTHER DETAILS REGARDING EXISTING TREES.

REVISION

THIS DRAWING TO BE READ IN CONJUNCTION WITH ALL RELEVANT ARCHITECT'S AND ENGINEER'S DRAWINGS. THIS DRAWING REMAINS THE COPYRIGHT OF THE ARCHITECT.

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