Pre Development BS5837 Arboricultural
Implications Assessment
Jesmond Towers
BS5837.AIA.JT.04.2012.V2
Produced For Glen Kemp
By Jim Richardson BSc For. HND Arb. Tech.Arbor.A
Pre Development BS5837 Arboricultural
Implications Assessment Jesmond Towers
BS5837.AIA.JT.04.2012.V2
Contents
Introduction................................................................................................................. 3
Summary of Findings ................................................................................................. 4
2.1. Statutory Tree Protection........................................................................................ 5
3. Arboricultural Impact Assessment ............................................................................ 6
4. Arboricultural Method Statement .............................................................................. 8
4.1. Aerial Protection ..................................................................................................... 8
4.1.1. Construction of Protective Fencing .................................................................. 8
4.1.2. Protective Fencing Minimum Distances........................................................... 9
4.2. Construction Exclusion Zones ................................................................................ 9
4.3. Special Construction Techniques ......................................................................... 10
4.3.1. Principle Rules of No Dig Construction ............................................................. 10
4.1.1. No Dig Construction Method: ............................................................................ 10
4.3.2. Foundation Construction Within CEZs........................................................... 11
4.3.3. Instillation of Underground Utilities ................................................................ 11
4.3.4. Ground Protection During Works Within CEZs .............................................. 11
4.3.5. New Surfacing Within Root Protection Areas ................................................ 12
4.3.5.1. Instillation of Permeable Surfacing............................................................. 12
4.3.6. Excavations Within Root Protection Areas .................................................... 14
4.5. North Jesmond House Garden ............................................................................. 16
4.7. Grotto Wood ......................................................................................................... 17
4.8. Main Junction ....................................................................................................... 17
4.9. Western Access Road .......................................................................................... 18
4.10.
South Lodge Area ............................................................................................. 19
Tree Works ....................................................................................................... 19
4.11.
4.12.
Schedule of Arboricultural Works ...................................................................... 20
4.13.
Arboricultural Supervision ................................................................................. 22
5. Other Arboricultural Site Factors ............................................................................ 23
5.1. Hazard Trees ....................................................................................................... 23
5.2. Recent Management ............................................................................................ 23
5.3. Future Management ............................................................................................. 23
5.4. Protected Wildlife ................................................................................................. 23
Appendices ....................................................................................................................... 24
I. Notes on Tree Assessment ................................................................................... 24
Protective Fencing Details ................................................................................. 25
II.
1.
2.
Date of Survey
Report Production
Surveyor
Consultant:
AJT Environmental Consultants survey
April 2012
AJT Environmental Consultants survey
Jim Richardson BSc For. HND Arb. Tech.Arbor.A
BS5837.AIA.JT.04.2012.V2
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1. Introduction
Glen Kemp have commissioned this arboricultural impact assessment on behalf of
their clients for the proposed re-development of the Jesmond Towers site.
The survey and resulting report have been produced to be submitted as part of the
planning application for the site to the local planning authority and have been
produced in accordance with the best practice guidelines set out in BS 5837 (2005)
Trees In Relation To Construction Sites: Recommendations.
The tree survey details were collected by AJT Environmental Consultants and tree
details should be referenced to their tree survey data records. Eighty Two
significant trees were surveyed as individuals and a further 35 tree groups were
surveyed as collective groups. The sites trees consist of a variety of mature and
semi mature native and exotic broadleaves and evergreens. Numerous sapling and
small shrubs are also present on site.
A vegetation management plan has been produced to accompany the planning
application and all management of vegetation not directly relating to development
issues should be referenced to this plan.
Woodsman were provided with a site plans of the area with tree locations canopies
and root protection areas marked on both pre and post development. Drawing 590
Tree Survey Fig 3 is effectively the Arboricultural Constraints Plan. Tree Protection
Plans (TPPs) have been adapted from the site plans provided. Tree locations and
protective measures should be referenced to the Tree Protection Plans (JT.TPP.01
– JT.TPP.13).
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2. Summary of Findings
The tree survey details were collected by AJT Environmental Consultants and tree
details should be referenced to their tree survey data records. Eighty Two
significant trees were surveyed as individuals and a further 35 tree groups were
surveyed as collective groups. The sites trees consist of a variety of mature and
semi mature native and exotic broadleaves and evergreens. Numerous sapling and
small shrubs are also present on site.
The trees have had little significant recent management. Collectively the trees
provide the site with good amenity and screening. Some of the trees surveyed are
beyond the boundaries of the development areas.
The proposed development will require the removal of 35 significant individual trees.
Some development works including resurfacing are scheduled in close proximity to
retained trees within Root Protection Areas (RPAs). These works must employ
special construction techniques in order to minimise disturbance to tree roots.
Providing that appropriate protective measures and construction techniques are
enforced during development the trees on site can be retained and should provide
amenity benefits for the site into the future.
The development should not have a major long term impact on the sites tree stock.
Extensive planting following construction should mitigate for the tree losses that are
necessary to allow the current design layout to be achieved.
Retained trees should not conflict significantly with site usage other than some
shading of plots immediately adjacent to retained mature specimens.
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2.1.
Statutory Tree Protection
Many of the trees on site are protected by the Tree Preservation Order TREE
PRESERVATION ORDER NO 2011/003 - JESMOND TOWERS ESTATE,
NEWCASTLE UPON TYNE. The site is also protected by conservation area status.
It is therefore advised that permission be sought from the local planning authority
prior to any tree works being carried out on site.
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3. Arboricultural Impact Assessment
The proposed development will require the removal of 35 significant individual trees.
Of those trees scheduled for removal twenty six are protected by the tree
preservation order including;
·
T2 (TPO W1),
·
Trees within G6, T11, T13, T17, T20, T36, x2 Ash (unnumbered), x1 Oak
(unnumbered) and x1 other (unnumbered),- (Within TPO W2),
·
T17, 18, 19, 20, 21, 25 and 26 (Within TPO G2),
·
T34, 35, 40, 41, 46, 47 and 53 (Within TPO G3),
·
G4 (TPO T10 and T11),
Some development works including resurfacing and minor ground works are
scheduled in close proximity to retained trees within Root Protection Areas (RPAs).
These works must employ special construction techniques in order to minimise
disturbance to tree roots.
Special construction techniques will be required in several areas including works
beneath; T78 and 79 (Mathew Bank Apartments – adjacent to plot 19 and 20), T80,
81 and 82 (North Jesmond House Garden – adjacent to plots 21-26), T36-66 (Grotto
Wood Area), T61, 27, 22 and 23 (Main Junction Area), Unnumbered local authority
Lime street trees (Western Access Road – beneath removed T28) and T11, 12,
(South Lodge Area Entrance).
Providing that appropriate protective measures and construction techniques are
enforced during development the majority of trees on site can be retained and
should provide wildlife and amenity benefits for the site into the future.
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The development should not have a major long term impact on the sites tree stock.
Extensive planting following construction should mitigate for the tree losses that are
necessary to allow the current design layout to be achieved.
Retained trees should not conflict significantly with site usage other than some
shading of plots immediately adjacent to retained mature specimens.
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4. Arboricultural Method Statement
The retained trees will need protection for roots trunks and branches during
demolition and construction. The trees will be protected by erecting barrier fencing
as depicted on the Tree Protection Plan.
4.1.
Aerial Protection
Arial protection should take the form of barrier fencing constructed as per BS5837
Guidelines.
4.1.1. Construction of Protective Fencing
Barriers should consist of a scaffold framework in accordance with BS 5837:2005
Trees in relation to construction - Recommendations; section 9, comprising a
vertical and horizontal framework, well braced to resist impacts, with vertical tubes
spaced at a maximum interval of 3m. Onto this, weld-mesh panels should be
securely fixed with wire or scaffold clamps. Weld-mesh panels on rubber or
concrete feet are not resistant to impact and should not be used unless they are
effectively pinned down and braced The use of any alternative method of fencing
should only be allowed following prior approval from the site Arboricultural
Consultant or the Local Planning Authority.
NOTE: The above is preferred because it is readily available, resistant to impact,
can be re-used and enables inspection of the protected area.
Protective fencing should enclose tree canopies in all areas where ground-works are
not required (other than where canopies extend over parking and access routes).
The fencing will remain in place until completion of the development and then only
removed with the consent of the local planning authority to permit completion of the
scheme.
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Other than works detailed within this method statement or approved in writing by the
local planning authority, no works including storage or dumping of materials shall
take place within the Construction Exclusion Zones (CEZs) as defined by the
protective fencing.
4.1.2. Protective Fencing Minimum Distances
Distances for protective fencing should be referenced to the Tree Protection Plans
4.2.
Construction Exclusion Zones
No works access should be allowed into the CEZs (Construction Exclusion Zones)
during the development phase. No storage of any building materials or any other
materials should be allowed within the CEZs.
Once the exclusion zones have been protected by barriers and/or ground protection,
construction work can commence. All weather notices should be erected on the
barrier with words such as: “Construction Exclusion Zone — Keep out”.
In addition the following should be addressed or avoided.
A. Care should be taken when planning site operations to ensure that wide or
tall loads or plant with booms, jibs and counterweights can operate without
coming into contact with retained trees. Such contact can result in serious
damage to them and might make their safe retention impossible.
Consequently, any transit or traverse of plant in close proximity to trees
should be conducted under the supervision of a Banks-man to ensure that
adequate clearance from trees is maintained at all times. In some
circumstances it may be impossible to maintain adequate clearance thus
necessitating access facilitation pruning - see T80, 81 and 82.
B. Material which will contaminate the soil, e.g. concrete mixings, diesel oil and
vehicle washings, should not be discharged within 10 m of the tree stem.
C. Fires should not be lit in a position where their flames can extend to within 5
m of foliage, branches of trunk. This will depend on the size of the fire and the
wind direction.
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D. Notice boards, telephone cables or other services should not be attached to
any part of the trees.
E. It is essential that allowance should be made for the slope of the ground so
that damaging materials such as concrete washings, mortar or diesel oil
cannot run towards trees.
4.3.
(Para BS5837)
Special Construction Techniques
Some development works including resurfacing are scheduled in close proximity to
retained trees within Root Protection Areas (RPAs). These works must employ
special construction techniques in order to minimise disturbance to tree roots.
If the development is to proceed with the current design layout then special no dig
construction techniques will be required for the creation of new paths and driveways
and for the re-surfacing of existing hard surfaces within the areas that would
normally form part of the CEZs.
4.3.1. Principle Rules of No Dig Construction
The principal rules of no dig construction are as follows:
1. No roots are to be severed
2. Soil must not be compacted
3. Oxygen and water must be able to diffuse into the soil beneath engineered
surfaces
4. The construction of the roads, footpaths or parking bays will have to be above
existing ground level and at least 1.5m away from the trunks of the retained
trees.
4.1.1. No Dig Construction Method:
Construction should ideally be undertaken between May and October when the
ground is at its driest and is less prone to compaction
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Ground vegetation should be carefully removed with any organic material being
removed to prevent the build-up of anaerobic conditions beneath the surfacing
which will damage the tree roots.
No digging should take place within the protective zone except for the careful
removal of organic matter by hand tools. Hollows must be filled with sharp sand, any
digging to remove rocks or protrusions must be by hand taking care not to sever any
roots over 2.5cm in diameter. Stumps should be ground out rather than excavated to
prevent damage to the retained trees roots.
4.3.2. Foundation Construction Within CEZs
No use of specialist foundations is required with the current design layout. Extreme
care is required to avoid damage to tree roots during foundation construction.
Foundation design should follow the principles of the ‘House deck’ or Swift
foundation systems (www.abbeypynford.co.uk / www.swiftfoundations.co.uk )
utilising mini-piles on which a raft is installed above ground level leaving a void
beneath the building. This void allows for gaseous and moisture exchange in the
soil and prevents soil compaction.
Temporary protective surfacing should be installed prior to accessing the area for
foundation construction
4.3.3. Instillation of Underground Utilities
If underground utilities are to be installed within RPAs extreme care will be required
in order to avoid damage to tree roots. These works should follow the guidelines set
out below (Excavations Within Root Protection Areas).
4.3.4. Ground Protection During Works Within CEZs
If access is required within CEZs then ground protection will be required. Where
required a practical solution to ground protection within areas requiring special
construction techniques is the installation of a temporary surface to reduce ground
compaction. This should take the form of a multi-layered protective barrier as
detailed below:
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BS5837.AIA.JT.04.2012.V2
Temporary Ground Protection Layers
·
Base Layer – Undisturbed soil containing tree roots.
·
Layer 1 – Sharp sand loosely tipped and lightly tamped to level uneven
ground.
·
Layer 2 – Geo-textile (e.g. Terram 1000).
·
Layer 3 – Minimum 10cm depth of compressible fill (e.g. woodchip) – must
be replenished if on-going compression occurs.
·
Layer 4 - Top layer – temporary boarding system capable of forming
construction access for vehicles (e.g. Greentek Ground guards). (or possibly
lesser surfacing for foot access only)
4.3.5. New Surfacing Within Root Protection Areas
New surfacing such as re-surfacing and pathways must use a non-compacting
porous surface such as Cell Web (from Geosynthetics) or a similar cellular
confinement system. No changes to ground level should be allowed prior to
installation of new surfacing which should be installed above the existing ground
level.
4.3.5.1. Instillation of Permeable Surfacing
The construction method below is suitable for the construction of permeable
surfaces. It is not a finished engineering solution. It is a methodology designed to
allow the construction without damaging the nearby tree root systems.
·
Lay a non-woven geotextile (Fibretex F4M or similar) on to the existing subgrade. - Overlap dry joints by 300mm
·
Lay and expand the cellular confinement system (Cellweb) and anchor open
during infilling.
·
Fill the cellular confinement system with a minimum of 75mm of aggregate
(75mm is the minimum depth for domestic traffic). The aggregate should not
contain any fines and be of an inert type material such as whinstone chips
rather than any lime based product. The angular particle dimensions should
be 20-40mm. As most urban soils are already alkaline in nature, the use of
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dolomite, limestone or crushed concrete is not suitable for this application as
it can react with rain water with the potential to change the soil pH and form
impenetrable layers which impede water movement and gaseous exchange
·
Place the final surface material.
o Block Paving – lay a second layer of Fibrex F4M Geotextile
separation fabric over the in-filled Cellweb sections. Lay a sharp sand
bedding layer compacted with a vibro compaction plate to
recommended depth. Places paviors as per the manufacturer’s
instructions. The use of porous blocks such as Aquaflow by Formpave
are particularly tree friendly and allow natural rainfall to reach the
rooting area.
o Porous tarmac – place 25mm surcharge of the granular material
above the Cellweb system and lay the bitumen base and wearing
course
o Loose Gravel- Place a second layer of Geotextile separation fabric
over the in-filled Cellweb sections. Place decorative aggregate to the
required depth. A treated timber edge should be provided to restrict
gravel movement
o Grass blocks or gravel in-filled blocks - Lay a second layer of
Geotextile separation fabric over the in-filled Cellweb sections. Place
50/50 rootzone bedding layer to the required depth. Lay recycled Duo
Block 500 Grass protection system in-filled with 50/50 rootzone mix.
Seed as required. Alternatively the grass blocks may be in-filled with
gravel.
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BS5837.AIA.JT.04.2012.V2
Edging supports such as angled steel section is advised although there varying
kerbing options available which do not require any excavation and could be used
above the existing ground level. Edging material must not encroach into the
protected area and the use of conventional kerbing is not possible as the depth of
excavation required for their installation will sever the tree roots.
Wherever footpaths go through a protective zone, it is often not possible to erect the
normal permanent protective fencing at the correct distance from the tree whilst
maintaining access to construct the hard surfacing. The permanent protective
fencing must be erected as per the plan as close to the edge of the working area as
possible. Extreme care must be taken to avoid damage to unprotected areas prior
to the surfacing system being laid and access must be prevented especially to
vehicles and plant. Temporary Herras fencing should be erected at distance
indicated on the Tree Protection Plan until the hard surfacing is constructed.
4.3.6. Excavations Within Root Protection Areas
All excavations for landscaping or re-surfacing works within RPAs must be carried
out following the guidelines set out in NJUG Volume4 (National Joint Utilities
Guidance Volume 4 Guidelines for the Planning, Installation And Maintenance Of
Utility Apparatus in Proximity To Trees issue 2).
4.3.6.1. Root Protection
Fine roots are vulnerable to desiccation once they are exposed to the air. Larger
roots have a bark layer which provides some protection against desiccation and
temperature change. The greatest risk to these roots occurs when there are rapid
fluctuations in air temperature around them e.g. frost and extremes of heat. It is
therefore important to protect exposed roots where they are to be left open overnight
where there is a risk of frost. In winter, before leaving the site at the end of the day,
the exposed roots should be wrapped with dry sacking. This sacking must be
removed before the trench is backfilled.
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All roots greater than 25mm diameter should be preserved and worked around.
These roots must not be severed unless absolutely necessary following approval
from the sites Arboricultural Consultant. If after consultation severance is
unavoidable, roots must be cut back using a sharp tool to leave the smallest wound
possible.
No roots above 50mm in diameter will be severed without prior approval from the
local authority’s arboricultural officer. It is not anticipated that severance of any
large roots will be required.
Careful hand digging will be employed within the RPAs with extreme care being
taken not to damage tree roots and root bark. Exposed roots if left overnight will be
covered to offer protection from the elements. No roots above 25mm in diameter
will be severed.
4.3.6.2. Hand Digging/Airspade
The objective of hand digging is to retain as many undamaged roots as possible.
Hand digging within RPA must be undertaken with great care preferably using an
airspade, preferably under supervision from the sites arboricultural consultant.
After careful removal of any hard surface materials digging must proceed with hand
tools. Clumps of roots less than 25mm in diameter (including fibrous roots) should
be retained in situ without damage. Throughout the excavation works great care
should be taken to protect the bark around the roots.
4.3.6.3. Backfilling
Backfilling should where required be carefully carried out to avoid direct damage to
roots and excessive compaction of the soil around them. The backfill should, where
possible, include the placement of an inert granular material mixed with top soil or
sharp sand (not builder’s sand) around the roots. This should allow the soil to be
gently compacted prior to construction without damage to the roots securing a local
aerated zone enabling the root to survive in the longer term.
If required backfilling outside the direct influence of tree roots should be carried out
using the excavated soil. This should not be compacted but lightly “tamped” and
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usually left slightly proud of the surrounding surface to allow natural settlement.
Other materials should not be incorporated into the backfill.
4.4.
Mathew Bank Apartments Area
In this area beneath T78 and 79 existing hard standing must be removed and no-dig
porous surfacing and soft landscaping installed.
Removal of existing hard-standing must be carried out by hand with surfacing being
broken into small pieces before being lifted. Any minor discrepancy in ground levels
must then be filled using sharp sand prior to the installation of the non-dig porous
surfacing and landscaping.
All works within Root Protection Areas must be carried out under supervision and
using the principles specialist construction methods detailed in section 4.3 (above).
See Plan Number JT.TPP.04.
4.5.
North Jesmond House Garden
In this area beneath T80, 81 and 82 existing hard standing must be removed and
replaced and soft landscaping installed. The area of hard-standing beneath T80
consisting of concrete slabs will be removed and replaced. The existing surface
beneath T 81 and 82 will be re-surfaced. In addition the small brick building
between T81 and 82 must be removed.
Removal of existing hard-standing must be carried out by hand with surfacing being
broken into small pieces before being lifted. Any minor discrepancy in ground levels
must then be filled using sharp sand prior to the installation of the new surfacing and
landscaping. Compaction must be avoided and new surfacing must not be tamped
hard down. Temporary ground protection may be required at the Arboricultural
Consultants discretion once the original surface is removed.
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The removal of the small brick building between T81 and 82 must be carried out by
hand.
All works within Root Protection Areas must be carried out under supervision and
using the principles of specialist construction methods detailed in section 4.3
(above).
See Plan Number JT.TPP.04.
4.6.
Grotto Wood
In this area beneath T 34-61 new footpath are to be installed using special non-dig
construction methods.
Special care will need to be taken when installing protective fencing and edging of
the footpaths so as not to damage the surface roots which are prominent throughout
the Grotto Wood Area. Pins for placing protective fencing and footpath edging must
not be driven into the surface roots.
All works within Root Protection Areas must be carried out under supervision and
using the principles of specialist construction methods detailed in section 4.3
(above).
See Plan Number JT.TPP.02.
4.7.
Main Junction
This area beneath T 23, 27, 59 and 61 requires the removal of existing driveway
surfacing and replacement with non-dig porous surfacing.
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Where existing driveway surfacing is to be replaced rather than removing the
surface driveway altogether only the surface should be removed and re-surfaced.
Where new surfacing is required non-dig construction methods must be employed.
All works within Root Protection Areas must be carried out under supervision and
using the principles of specialist construction methods detailed in section 4.3
(above).
See Plan Number JT.TPP.06.
4.8.
Western Access Road
This area beneath local authority lime trees and removed T28 requires the
installation of new gateposts and driveway and footpath surfacing.
Removal of existing gateposts and wall must be carried out by hand down to ground
level with any foundation beneath ground level remaining in situ.
Installation of foundations for new gateposts must be carried out under supervision
and using the principles of specialist construction methods detailed in section 4.3
(above). Should digging for gateposts reveal significant roots within the foundation
area then the roots must be bridged using concrete lintels whilst allowing ample
room for future root expansion.
Where existing driveway surfacing is to be replaced rather than removing the
surface driveway altogether only the surface should be removed and re-surfaced.
Where new surfacing is required non-dig construction methods must be employed.
All works within Root Protection Areas must be carried out under supervision and
using the principles of specialist construction methods detailed in section 4.3
(above).
See plan number JT.TPP.13
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4.9.
South Lodge Area
This area Beneath T11 and 12 requires the installation of new gateposts and
footpath surfacing.
Removal of existing gateposts and wall must be carried out by hand down to ground
level with any foundation beneath ground level remaining in situ.
Installation of foundations for new gateposts must be carried out under supervision
and using the principles of specialist construction methods detailed in section 4.3
(above). Should digging for gateposts reveal significant roots within the foundation
area then the roots must be bridged using concrete lintels whilst allowing ample
room for future root expansion.
All works within Root Protection Areas must be carried out under supervision and
using the principles of specialist construction methods detailed in section 4.3
(above).
See Plan Number JT.TPP.12.
4.10.
Tree Works
All tree pruning and removal works must conform to BS3998 Recommendations for
Tree Works, and must use target pruning in accordance with best practice.
The tree works scheduled below refer only to those works which relate directly to
development issues.
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4.11.
Schedule of Arboricultural Works
1. Provide site managers with a copy of Arboricultural report.
2. Tree Protection Plans to be mounted in works cabins.
3. Brief all site staff regarding protective measures (on-going).
4. Mark out trees for removal and remedial works with temporary
marker paint.
5. Facilitation Access prune - Crown-Raise T80, 81, 82 to give 3m
clearance from ground level.
6. Remove trees with TPO status · T2 (TPO W1),
· Trees within G6, T11, T13, T17, T20, T36, x2 Ash (unnumbered),
x1 Oak (unnumbered) and x1 other (unnumbered),- (Within TPO
W2),
· T17, 18, 19, 20, 21, 25 and 26 (Within TPO G2),
· T34, 35, 40, 41, 46, 47 and 53 (Within TPO G3),
· G4 (TPO T10 and T11),
7. Remove other trees. – T7, T9, T10, T28, 30, 32, 72, x1 tree from
G2 (unnumbered) and x2 trees by north lodge (unnumbered).
8. Mark out lines of protective fencing and areas for special
construction techniques.
9. Install protective fencing including information signs.
10.
Remove existing hard-standing by hand beneath T78, 79
and 80 (Mathew Bank Apartments and North Jesmond House
Garden.*
11.
Remove small brick building between T81 and 82 by hand.*
12.
Install no-dig surfacing beneath T78 and 79.*
13.
Install soft landscaping beneath T78 and 79.*
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14.
Re-install non porous surfacing beneath T80, 81 and 82.*
15.
Install soft landscaping beneath T80.*
16.
Install no-dig footpath/driveway within Grotto Wood (Beneath
T34-61)*
17.
Remove surface of existing hard-standing at Main Junction
(Beneath T23, 27, 59 and 61)*
18.
Install no-dig surfacing at Main Junction (Beneath T23, 27,
59 and 61)*
19.
Remove and replace existing gateposts – hand digging only
at Western Access Road (Beneath local authority lime trees and
removed T28)*
20.
Install no-dig surfacing at Western Access Road (Beneath
local authority lime trees and removed T28)*
21.
Refurbish existing wearing course at Western Access Road
(Beneath local authority lime trees and removed T28)*
22.
Remove and replace existing gateposts – hand digging only
at South Lodge Area entrance (beneath T11).*
23.
Install no-dig surfacing at South Lodge Area entrance and
raise adjacent tarmac surface (beneath T11 and 12).*
24.
Construction Phase – including all further construction
works.
25.
Landscaping works. – Any works within Root Protection
Areas to be supervised.*
26.
De-install protective fencing – only once all other
development activity is completed.
27.
Completion
*Works requiring arboricultural supervision.
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All staff on site should be briefed regarding the protective measures to be enforced.
Construction should not proceed prior to the installation of the protective measures
and these should remain in place for the entire duration of the construction phase.
Only once the construction phase is completed in its entirety should the protective
fencing be removed.
4.12.
Arboricultural Supervision
Tree protection measures on this site are complex and special construction
techniques are required. Arboricultural supervision from the sites Arboricultural
Consultant is therefore considered necessary during the installation new surfacing
and significant ground works within Root Protection Areas. On-going Arboricultural
supervision is advised throughout the development process.
Any deviation from the prescribed method statement or the occurrence of any
unforeseen damage to the sites trees must be immediately reported to the sites
Arboricultural Consultant. All works around the affected area on site must be halted
immediately. The Arboricultural Consultant will make a site visit to assess the extent
of the damage or deviation from the prescribed method statement and any resulting
works required. The local authority planning department will also be immediately
informed and Woodsman will provide them with a written assessment of any such
damage or deviation from the prescribed method statement.
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5. Other Arboricultural Site Factors
5.1.
Hazard Trees
A vegetation management plan has been produced to accompany the planning
application and all management of vegetation not directly relating to
development issues should be referenced to this plan.
5.2.
Recent Management
The trees have had little significant recent management.
5.3.
Future Management
A vegetation management plan has been produced to accompany the planning
application and all management of vegetation not directly relating to
development issues should be referenced to this plan.
5.4.
Protected Wildlife
It is an offence under the Wildlife and Countryside Act 1981 (and amendments)
and the EU Habitats Directive to disturb and or destroy the nests of bats, birds
and other protected wildlife. It is therefore advised that tree contractors check for
the presence of bats and birds’ nests prior to carrying out tree removals.
23
BS5837.AIA.JT.04.2012.V2
Appendices
I. Notes on Tree Assessment
The tree survey details were collected by AJT Environmental Consultants and tree
details should be referenced to their tree survey data records.
The trees on site have been assessed and categorised as follows according to BS
5837 (2005) Trees In Relation To Construction Sites: Recommendations.
Category R Trees:
Those in such a condition that any existing value would be lost within the next ten
years and which should in the current context, be removed for reasons of sound
arboricultural management:
Category C Trees:
Those of low quality and value: Currently in adequate condition to remain until new
planting could be established or young trees with a stem diameter below 150mm.
These trees although of some value should not be allowed to affect the design of the
site layout as they can easily be replaced.
Category B Trees:
Those of moderate quality and value: those in such a condition as to make a
significant contribution for a minimum of twenty years. Site design should where
practicable retain these specimens.
Category A Trees:
Those of high quality and value: in such a condition as to be able to make a
substantial contribution for a minimum of forty years. Site design should seek to
retain these trees wherever it is practicable to do so.
BS5837.AIA.JT.04.2012.V2
24
II. Protective Fencing Details
25
BS5837.AIA.JT.04.2012.V2
BS5837.AIA.JT.04.2012.V2
26
(T63)
(T17)
KEY
(T18)
Tree Root Protection Area (RPA)
(T64)
'No-dig' road/footpath construction (Porous construction
detail)
T61
(T66)
T60
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
(T65)
Existing hard standing replaced by soft landscaping
(T27)
Non-porous footpath construction (replacing existing
non-porous construction)
(T16)
Existing wearing course refurbished
Proposed increase T13
in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
PLOTS 49
G2
Tree to be removed
Tree protection barrier
G1
T12
(G4)
T11
PLOT 1
Rev. Date
Description
-
-
-
(G4)
Client
Shepherd Offshore
Project
Jesmond Towers
Title
Tree Protection Plan No13
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.13
(T28)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
Scale@A3
1:250
Revision
10/05/2012-
(13)
PLOTS
43 - 48
KEY
(11)
8
Tree Root Protection Area (RPA)
G6
'No-dig' road/footpath construction (Porous construction
detail)
7
(16)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
T5
Tree to be removed
Tree protection barrier
T4
T6
(T7)
T3
T8
Rev. Date
Description
-
-
-
T2
Client
Shepherd Offshore
T13
Project
T1
Jesmond Towers
Title
(T10)
PLOTS 49
(T9)
Tree Protection Plan No12
Drawn
Checked
JR
Date
26-04-12
Drawing No.
G2
G1
JT.TPP.12
T12
T11
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
Scale@A3
1:250
Revision
10/05/2012-
12
(G6)
KEY
Tree Root Protection Area (RPA)
9
'No-dig' road/footpath construction (Porous construction
detail)
15
(13)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
3600
(11)
8
Existing hard standing replaced by soft landscaping
(16)
G6
7
Non-porous footpath construction (replacing existing
non-porous construction)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
1300 1000
(subject to further
detailed design/survey information)
Tree to be retained
Tree to be removed
Tree protection barrier
T5
T4
Rev. Date
10 Apartments
-
Description
-
T6
(T7)
Client
Shepherd Offshore
T3
Project
T2
Jesmond Towers
T8
Title
Tree Protection Plan No11
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.11
T1
(T10)
(T9)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
Scale@A3
1:250
Revision
10/05/2012-
KEY
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
29
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
(36)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
30
Tree to be retained
34
Tree to be removed
35
Tree protection barrier
33
32
Rev. Date
Description
-
-
-
Client
G6
Shepherd Offshore
Project
Jesmond Towers
Title
31
Tree Protection Plan No10
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.10
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
Scale@A3
1:250
Revision
10/05/2012-
19
KEY
18
21
14
22
23
24
Tree Root Protection Area (RPA)
25
'No-dig' road/footpath construction (Porous construction
detail)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
15
Tree to be retained
3600
Tree to be removed
Tree protection barrier
1300
1000
Rev. Date
Description
-
-
-
Client
Shepherd Offshore
Project
Jesmond Towers
Title
(36)
Tree Protection Plan No9
Drawn
Checked
JR
10 Apartments
Date
26-04-12
Scale@A3
1:250
Revision
Drawing No.
JT.TPP.09
10/05/2012-
34
35
33
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
KEY
(2no. Ash)
G6
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
18
Existing wearing course refurbished
14
10
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
North
Lodge
Tree to be retained
Tree to be removed
12
Tree protection barrier
(G6)
9
15
(13)
Rev. Date
Description
-
-
-
3600
(11)
8
(16)
G6
Client
Shepherd Offshore
7
Project
Jesmond Towers
Title
Tree Protection Plan No8 1300
Drawn
Checked
JR
1000
Date
26-04-12
JT.TPP.08
T4
1:250
Revision
Drawing No.
T5
Scale@A3
10/05/2012-
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
10 Apartments
KEY
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
4
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
3
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
(2)
G6
Tree to be retained
Tree to be removed
1
Tree protection barrier
10
5
North
Lodge
Rev. Date
Description
-
-
-
9
Client
Shepherd Offshore
Project
PLOTS
43 - 48
Jesmond Towers
Title
Tree Protection Plan No7
Drawn
8
Checked
JR
Date
26-04-12
G6
JT.TPP.07
(T26)
10/05/2012-
7
(T24)
(T22)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
(T21)
T20
1:250
Revision
Drawing No.
(T25)
Scale@A3
PLOTS
33 - 36
KEY
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
PLOTS
43 - 48
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
(T25)
(T26)
Non-porous footpath construction (replacing existing
non-porous construction)
(T24)
PLOTS
37 - 42
(T23)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
(T22)
(T21)
Tree to be retained
Tree to be removed
(T62)
T20
Tree protection barrier
(T19)
(T63)
(T17)
(T18)
(T64)
T61
(T66)
Rev. Date
Description
-
-
-
(T65)
Client
Shepherd Offshore
Project
(T27)
Jesmond Towers
Title
(T16)
Tree Protection Plan No6
Drawn
Checked
JR
Date
26-04-12
T13
Drawing No.
JT.TPP.06
(G4)
1:250
Revision
10/05/2012-
(T1
PLOTS 49
G2
Scale@A3
G1
T12
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
T11
(T17)
KEY
(T18)
Tree Root Protection Area (RPA)
(T64)
'No-dig' road/footpath construction (Porous construction
detail)
T61
(T66)
T60
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
(T65)
Existing hard standing replaced by soft landscaping
(T27)
Non-porous footpath construction (replacing existing
non-porous construction)
(T16)
Existing wearing course refurbished
T13
Proposed increase
in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
PLOTS 49
G2
(G4)
Tree to be removed
G1Tree protection barrierT12
T11
PLOT 1
(G4)
Rev. Date
Description
-
-
-
Client
Shepherd Offshore
Project
Jesmond Towers
Title
Tree Protection Plan No5
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.05
(T28)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
Scale@A3
1:250
Revision
10/05/2012-
KEY
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
Non-porous footpath construction (replacing existing
non-porous construction)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
Tree to be removed
Tree protection barrier
+0
+0
PLOT 19
T80
+0
T81
+ 120
550+
+ 150
PLOT 20
T78
T82
+0
T79
+0
PLOT
26
Rev. Date
Description
-
-
-
4
Client
Shepherd Offshore
Project
+ 50
Jesmond Towers
3
Title
Tree Protection Plan No4
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.04
PLOT 21
- 25
PLOTS
27 - 32
PLOTS
10 - 18
1) Please refer to the Designer's Risk Assessments within the health and Safety File / Construction
Phase Plan and the relevant Contractor's Construction Method Statements prior to construction /
maintenance of the designs illustrated.
(2)
1:250
Revision
10/05/2012-
1
HEALTH & SAFETY NOTES:
The Designers responsible for producing this document draw the reader's attention to the following
residual health and safety risks associated with the design which have not been eliminated by the design
process:
Scale@A3
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
T36
T50
KEY
T38
(T47)
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
T51
(T39)
(T35)
(T46)
(T40)
T52
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
(T53)
PLOT 7
Existing hard standing replaced by soft landscaping
T45
T41
(T42)
(T44)
Non-porous footpath construction (replacing existing
non-porous construction)
(T55)
(T54)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
T57
T56
Tree to be retained
Tree to be removed
Tree protection barrier
PLOT 6
Rev. Date
Description
-
-
-
Client
Shepherd Offshore
PLOT 5
PLOT 4
Project
Jesmond Towers
Title
PLOT
3
Tree Protection
Plan No3
Drawn
Checked
JR
Date
26-04-12
Drawing No.
T31
(T32)
JT.TPP.03
(T30)
(T29)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
PLOT 2
Scale@A3
1:250
Revision
10/05/2012-
PLOTS
27 - 32
KEY
T69
Tree Root Protection Area (RPA)
'No-dig' road/footpath construction (Porous construction
detail)
T68
PLOTS
10 - 18
T67
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
Existing hard standing replaced by soft landscaping
G5
Non-porous footpath
construction (replacing existing
PLOTS
non-porous construction)
33 - 36
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
Tree to be removed
T48
Tree protection barrier
T37
(T25)
(T26)
T49
T36
(T24)
T50
T38
PLOTS
37 - 42
T59
(T47)
(T39)
(T35)
Description
-
-
-
(T22)
(T21)
T51
(T46)
(T40)
Rev. Date
(T23)
T52
(T62)
T20
Client
(T19)
Shepherd Offshore
(T53)
(T63)
Project
(T17)
Jesmond Towers
T45
Title
T41
Tree Protection Plan No2
(T42)
(T44)
Drawn
(T55)
(T54)
JR
(T64)
Date
(T18)
26-04-12
1:250
10/05/2012-
(T66)
T60
Scale@A3
Revision
Drawing No.
JT.TPP.02
T61
T57
T56
Checked
(T65)
(T27)
0191 2092392 07773991474
[email protected]
www.woodsman-arb.co.uk
KEY
Tree Root Protection Area (RPA)
'No-dig' road/footpath
construction (Porous construction
+0
T80
detail)
PLOT 19
+ 120
550+
T74
T79
PLOT 9
Existing tarmacadam surface to be raised to tie in with
levels to new 'no dig' construction
PLOT
20
Existing
hard standing replaced by soft landscaping
T78
+ 150
+0
+ 50
Non-porous footpath construction (replacing existing
+0
non-porous construction)
Existing wearing course refurbished
Proposed increase in levels in mm above existing
(subject to further detailed design/survey information)
Tree to be retained
T75
T73
Tree to be removed
T70
Tree protection barrier
T77
PLOT 21
- 25
T69
T76
T68
PLOTS
10 - 18
T67
(T72)
Rev. Date
Description
-
-
-
G5
Client
Shepherd Offshore
Project
Jesmond Towers
Title
Tree Protection Plan No1
Drawn
Checked
JR
Date
26-04-12
Drawing No.
JT.TPP.01
Scale@A3
1:250
Revision
10/05/2012-
T48
PLOT 8
T37
T49
0191 2092392 07773991474
T36
T50
[email protected]
T38
(T47)
www.woodsman-arb.co.uk
T59
+