Arbor Centre PTY LTD 731 Welshpool Road East, Wattle Grove 6107 Phone:- (08) 9359 9300 ~ [email protected]~ www.arborcentre.com.au This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD. Stage 1: - Preliminary Survey, Assessment and Report Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK) Prepared for: Rochelle Lupton Contact: 6222 8754 – Mob. 0435 042 502 [email protected]Prepared by: Charlie Firth & Luke Lumbus July 2018 [email protected][email protected]Reference number: ACC 619
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Stage 1: - Preliminary Survey, Assessment and Report · Stage 1: -Preliminary Arboricultural Survey, Assessment and Report Leach Highway H012 - High Street Upgrade – Stirling Highway
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Arbor Centre PTY LTD 731 Welshpool Road East, Wattle Grove 6107
3.2 Tree Health 7 3.3 Tree Structure 7 3.4 Preliminary Recommendations 7 3.5 Protection of Trees during Construction 8 3.6 Potential Relocation of Trees 8
4. Overview of Australian Standards AS 4970 & AS 4373 9 4.1 AS 4970 ‘Protection of Trees on Development Sites’ 2009 9 4.2 AS 4373 ‘Pruning of Amenity Trees’ 2007 10
5. Preliminary Tree Retention Guidelines 11 5.1 Tree Preservation Considerations 11
6. Conclusions 14 7. Recommendations 15
7.1 Significant Trees 15 7.2 Smaller Trees 15 7.3 Potential Relocation of Trees 15 7.4 Arboricultural Inputs into the Project to Achieve Successful Tree Retention 15 7.5 Regular Arboricultural inspections 15
8. References & Reading 16
Appendix A: Tree Location Images 17 Appendix B – Table of Results 22
Field Definitions 22 Health and Structure Definitions 24 Table of Results 25
Appendix C – Examples of Arbor Centres Tree Retention Projects 41
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1. Purpose of this Preliminary Report To assess the identified trees as identified and specified by GHD (refer pink points in Figure 1) currently located within the proposed Leach Highway; High Street; Stirling Highway and Carrington Street Upgrade area in Fremantle (refer figure 1 below) to benchmark the current health and structural status of the trees and; to identify preliminary tree retention and management considerations required to achieve the ongoing success of the trees within the finished landscape.
Figure 1. Satellite image showing Trees identified by GHD to be assessed (pink points) within the proposed Leach Highway; High Street; Stirling Highway and Carrington Street Upgrade area in Fremantle, Western Australia - Image Source – www.NearMap.com , Image date 24 June 2018
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2. Background At the request of Rochelle Lupton (GHD), Arbor Centre has been engaged to undertake an Arboricultural inspection of the trees identified and specified by GHD within the proposed Leach Highway; High Street; Stirling Highway and Carrington Street Upgrade area in Fremantle (refer figure 1 for detail). This Arboricultural input supplied by Arbor Centre is supplementary to the ecological assessment undertaken by GHD for the Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington
Street (1.49 SLK) project. 2.1 Brief Arbor Centres brief was to attend site to obtain and provide the following information:
• Identify genus, species and common name for each of the specified trees within the proposed upgrade area;
• Comment on current health, structure & age of the identified trees;
• Obtain height, canopy spread and trunk diameter measurements;
• Provide Tree Protection Zone (TPZ) and Structural Root Zone (SRZ) radii for each tree
• Provide preliminary management considerations (retain; remove, seek further Arboricultural Advice);
• Compile general information relevant for the individual specimen(s);
• Provide preliminary tree preservation and protection considerations;
• Conclusions and Recommendations. 2.2 Arboricultural Inspection Arbor Centre undertook an Arboricultural assessment of the 650 x specified trees (in conjunction with GHD staff) on the 26th ,28th and 29th of June and the 2nd and 6th of July 2018 as identified and specified by GHD field staff. The assessment was a visual tree inspection undertaken from ground level and did not incorporate any form of below ground or aerial inspection of the trees. 2.3 Limitations of this Report The information contained within this report is not intended, or suitable to be used as a final ‘Tree Management Plan’ for the 650 x subject trees, but rather, is to provide guidance on how the subject trees currently present in light of the proposed project works and provide preliminary considerations and
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recommendations on how best to manage and protect the trees throughout the remainder of the project and over the longer term. Furthermore, this assessment and report does not attempt to predict or quantify potential future tree failures; the partial or complete failure of trees and/or tree parts is a natural part of any environment and may be influenced by a wide range of factors including (but not limited to) tree age and condition, quality of previous pruning works afforded; abrupt changes to the local growing environment, prior root zone incursion/impacts and high winds or other extreme climatic events. 2.3.1 Other Trees –not assessed It is important to recognise that, due to the scope of works identified for this survey, a number of trees within the area of assessment (typically with a trunk diameter <300mm dia.) were not identified, assessed or included in this report. While these smaller trees may currently be perceived to offer less environmental benefits than the mature/ veteran trees within the area, greater benefits will be realised over time as they are allowed to mature and provide significant environmental and amenity asset to the local area. 2.4 Achieving Successful Tree Retention It is important to recognise early in the planning stage of a project that mature trees can, and have been successfully retained into projects (including roadway installations and upgrades) within the Perth Metropolitan area. Please refer Appendix C – Examples of Arbor Centres Tree Retention Projects for further detail. In order for successful tree retention to be achieved, appropriate and timely arboricultural inputs are required into (but may not be limited to):-
• Developing tree sensitive designs and works methodology;
• Providing tree and project specific Tree Management Specifications for implementation prior to, during and potentially post project completion and;
• Undertaking ongoing tree monitoring and (where required) implementing arboricultural remediation works.
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3. Summary of Arboricultural Survey & Assessment A total of 650 trees within the specified area were identified and specified for assessment by GHD and subsequently assessed and inspected by Arbor Centre. Each of the 650 specified trees were visually inspected from ground level* to assess and record the: species; tree height and canopy spread; trunk diameter; age status; ULE, current tree health and structure and observations/comments and preliminary management considerations relevant for the individual specimen - refer Appendix B Table of Results for detail. *Note: On instances where access adjacent the subject tree was not achievable; an approximate
assessment of the various criteria has been made from distance (refer Appendices A Tree Location and;
B Table of Results for further detail).
3.1 Tree Species Diversity The majority of the 650 identified trees consisted of 5 x different genera. They are: -
• Eucalyptus species (Eucalypt) x 323 (~49%)
• Corymbia species (Gum Tree/Bloodwood) x64 (~9.8%)
• Agonis species (W.A. Weeping Peppermint) x 38 (~5.8%)
• Ficus species (Fig Tree) x 25 (~3.8%)
• Melaleuca species (Paperbark) x 21 (~3.2%)
• Other species x 135 (~20.7%)
• Previously Removed/Dead etc. x 49 (7.5%)
The identified and assessed tree population varies in diversity from introduced species (~13%); to endemic West Australian species (~41%); through to Australian native species (~35%). Of the 650 specified trees; ~80% were classified as mature; ~12% as semi mature and ~<0.5 % classified as juvenile, at the time of inspection. 3.1.1 Significant Mature Trees A significant number of mature native and indigenous trees were noted onsite. Due to the increasing loss of mature urban trees through infill and other development projects, remnant, veteran and mature trees are increasingly rare and valuable from both an environmental and amenity perspective. Such trees should be made the highest priority for retention.
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3.1.2 Avian Fauna Habitat and/or Foraging Further to the above identification of significant mature trees within the area of assessment, GHD has advised that evidence of foraging and/or potential nesting habitat was observed within several of trees throughout the area of assessment (refer GHD’s Leach Highway H012 - High Street Upgrade – Stirling
Highway (0.03 SLK) to Carrington Street (1.49 SLK) report for further detail). 3.2 Tree Health Most of the trees assessed displayed good to acceptable health status (85%), a number of trees within the assessed area displayed varying degrees of canopy decline and/or reduced vigour at the time of inspection (refer Appendix B: Table of Results for further detail). The signs/symptoms of reduced tree health observed may be attributed - but not limited to: -
• Previous root loss/root zone impact (proximity trenching/excavations; demolition of previous structures; below ground service installations, changes to soil level; mechanical damage/root scalping etc.);
• Mechanical damage to the trees conductive tissue (fire damage; vehicle/machinery impacts; poor prior pruning practices; bird damage etc.);
• Competition and canopy suppression (lack of available above and below ground growing space);
• Environmental influences (poor seasonal rainfall, possible storm damage);
3.3 Tree Structure The majority of the trees that were assessed (78%) have developed a good to acceptable structure. Several structural issues were observed within the surveyed tree population including; rubbing/crossing stems, leggy form; deadwood in canopies; fire damage; previous branch failures, narrow points of attachment/bark inclusions and canopy suppression etc., these issues are generally considered manageable within the scope of an ongoing, proactive tree management program. 3.4 Preliminary Recommendations At the time of assessment 111 trees have been recommended for further discussion with the Arboriculturist to:- develop appropriate long term tree management approaches; discuss observations made at the time of inspection and; subsequently provide more definitive recommendations regarding the
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nature of Arboricultural works and time frames that may apply (refer Appendix B: Table of Results for further detail). The remaining 493 trees have been identified as worthy of retention subject to being afforded the appropriate tree protection measures during the development process (refer Appendix B: Table of Results for further detail). 3.5 Protection of Trees during Construction Specialist Arboricultural input will be required for trees that are considered for retention; to incorporate protection and remedial measures into the final design specifications of the proposed development and; in determining construction methodologies and specifications to be actioned prior to and during project activities. This will ensure that measures to minimize tree root and canopy impact on specimens identified for retention can be designed into the project specifications and documentation and; implemented during construction – refer Point 4. Overview of Australian Standards AS 4970 & AS 4373 and refer Point 5. Preliminary Tree Retention Guidelines for further detail. 3.6 Potential Relocation of Trees Several trees identified during the assessment are considered as potentially amenable to the transplantation (relocation) process. Further discussion with the Arboriculturist is required in determining where and how the potential relocation of specific trees may (or may not) be applicable to the High Street upgrade project.
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4. Overview of Australian Standards AS 4970 & AS 4373 4.1 AS 4970 ‘Protection of Trees on Development Sites’ 2009 To successfully incorporate trees into the urban environment, careful consideration, planning and protection should be afforded to both above and below ground parts of the tree - leaves, branches, stems of the above ground parts and; below ground, absorbing roots and structural roots. The operations and activities associated with the construction and development process can have adverse effects on tree health and stability. Those activities that can potentially impact on the tree(s) will require remedial measures to be taken prior to, during and post development to ensure that all reasonable measures are taken to offset such damage.
Damage to tree roots is often irreversible and a common cause of tree decline and/or death following the construction and development phase. The implementation of a Tree Protection process will help lessen the impact that proposed development will have on the root zone (resulting from grade changes, excavations, soil compaction, mechanical damage etc...) and enable timely remedial action to help the tree to retain enough root mass for the continuation of natural growth and development.
Australian Standards have created AS 4970 ‘Protection of Trees on Development Sites’ 2009 that addresses many of the issues that construction and development can have on trees and provides a guide only on how to avoid unnecessary damage and outlines a process that will protect tree welfare during the construction and development phase.
To calculate the minimum area required to be protected during construction, development or during any activities that may cause harm or injure the tree and its parts, the formula 12x the trunk Diameter at Breast Height* (DBH) is used. For Example - if trunk diameter of the tree in question is 500mm – 12 x 500mm = 6 meter TPZ which is measured in meters as a radius and taken from the centre of trunk. Note: - *Accurate measurement of trunk diameter(s) in millimetres - Typically measured at 1.4 meters above ground level for single stemmed trees; at the narrowest point of trunk for co dominant specimens or; at ground level for (low) multi stemmed form. - TPZ to not be <2 meters or >15 meter in diameter.
Where encroachment (building, construction, excavation, landscaping or otherwise) into the Tree Protection Zone is required, Arboricultural input will be necessary to assess the extent of potential impact that may occur and if required, provide Arboricultural measures that can be taken to enable modification of the TPZ and allow root zone encroachment to occur.
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Any tree preservation recommendations made for the subject trees need to recognise that the Australian Standards do not consider the individual tree characteristics and tolerances that the species possess or; the soil type and other environmental conditions or circumstances that are specific to the site.
It is important to recognise that the TPZ’s identified in this report are simply an indication of a boundary around the tree beyond which disturbance is considered inconsequential and is unrestricted. However; the main purpose is to identify that any change or disturbance within the TPZ boundary will require Arboricultural input and approval. This includes activities such as (but not limited to:): soil level changes and excavations, demolition and/or removal of vegetation and/or infrastructure, installation of roads, paths & below ground services (including irrigation) hard and soft landscaping and; activities that could impact on tree canopy i.e. cranage, vehicular/machinery movement etc.
Any tree retention and/or protection specifications/recommendations made should be specified by an (minimum) Australian Qualification Framework Level 5 Arborist (AQF 5 – Diploma in Arboriculture); in keeping with the Australian Standards AS 4970 ‘Protection of Trees on Development Sites’ 2009 and be undertaken under the direction of the Arboriculturist.
4.2 AS 4373 ‘Pruning of Amenity Trees’ 2007 AS 4373 ‘Pruning of Amenity Trees’ 2007 has been developed to provide a guide on tree pruning procedures and practices to limit poor or deleterious type pruning being unnecessarily inflicted onto amenity trees. The result of incorrect pruning of a tree is often irreversible, can negatively impact its health and structure and create unnecessary hazards within and surrounding the trees. Correct tree pruning practices can reduce the likelihood of branch failures, limit pest and disease infestations, improve site safety and tree amenity, encourage sound structural development and extend tree longevity.
Any pruning works undertaken to the assessed trees should be specified by a (minimum) Australian Qualification Framework Level 5 Arborist (AQF 5 – Diploma in Arboriculture); comply with the Australian Standards AS 4373 ‘Pruning of Amenity Trees’ 2007 and be undertaken by suitably trained and qualified Arborists with a minimum AQF Certificate 3 in Arboriculture under the supervision of the Arboriculturist. References: AS 4373 2007, AS 4970 2009
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5. Preliminary Tree Retention Guidelines Below is an outline of the matters that will need to be addressed as part of developing and implementing a Tree Retention Plan for the Trees identified for long term retention into the High Street, Fremantle landscape. 5.1 Tree Preservation Considerations
• Refinement and further specialist Arboricultural input will be required in determining demolition and construction methodologies and specifications prior to finalising and implementing a design; to ensure minimal tree root and canopy impact can be designed into the project. Note: A, collaborative review of proposed designs and works methodologies with the Project
Arboriculturist is recommended to develop and implement modifications and refinements where
required to reach a successful, tree sensitive outcome for the project.
• Avoiding disturbance/ incursion into the Tree Protection Zone (TPZ) projections and; that where encroachment into the TPZ area is unavoidable, the Arboriculturist provide approval for and/or inputs into appropriate works methodologies and/or remedial measures prior to any incursion occurring. Further, there may be a requirement (based on the recommendations made by the Arboriculturist) for the Arboriculturist to be present during the proposed works to assess tree impacts and prescribe and/or undertake necessary remedial works.
• The implementation of tree specific Tree Protection Zones (TPZ’s) and the erection of approved protective fencing and identification signage to be installed prior to the commencement of the works period at the delineation of the “Specified” TPZs, (refer point 4 Overview of Australian
Standards AS 4373 & AS 4970 for a high level overview of the tree retention process).
• Any below ground services that are proposed to travel through/encroach within the identified TPZs i.e. below ground infrastructure, pipe works, gully pits water, power, gas, telecommunications, irrigation etc.., be relocated/diverted to outside of the TPZ projection(s). This should be undertaken in conjunction with the Arboriculturist to identify where new service alignments are best located to minimise impact on the subject trees - including methodologies associated with their installation.
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• Where diversion of proposed below ground services and/or other works within the TPZ is not achievable, Arboricultural input(s)/approval will be required prior to works occurring to; quantify potential root loss; limit unnecessary root or canopy damage/impact and/or provide remedial measures necessary.
• Where scheduled works cannot reasonably be diverted outside the TPZ, Arboricultural supervision will be required to quantify potential root loss, limit unnecessary root damage/impact, and/or provide possible remedial measures necessary to offset potential root loss. Works include but are not limited to;
o Clearing and site stripping; o Any soil level changes (cut and/or fill); o Any Construction; o Below ground service installation/upgrades; o Hard and Soft Landscaping (including irrigation installation).
• Selective pruning of the trees canopies can help improve structural form and site safety and; crown lifting for construction, vehicular or machinery access may be required (to varying degrees) – refer point 4 Overview of Australian Standards AS4373 for further detail.
• Pruning of roots (subject to Arboricultural approval) where proposed works may encroach into the TPZ area(s), will need to be undertaken by, or under the supervision of the Arboriculturist.
• Supplementary watering of the trees - subject to the amount of potential root loss sustained & seasonal variation* - may be required. *Note: Timing of works around the tree(s) could have significant implications regarding irrigation rates and
frequencies and the associated level of maintenance required i.e. active growing periods within warmer months as
opposed to slower growth periods in winter.
• Potential remedial measures for both canopy and root zone (i.e. root zone coring, soil wetting agents and liquid organic soil drenching) being subject to Arboricultural approval.
• Installation of surface protection and/or trunk and branch protective measures may need to be considered for the site. (where identified by the Arboriculturist and if required) to enable vehicle/machinery movement within the TPZ.
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• The Tree Protection Zones are to be retained for the duration of the construction period and are not subject to modification without prior approval from the Arboriculturist. Contractors are to be made aware of the Tree Protection Zone within the site’s works area, and that no works are to occur within this area without prior approval from the Arboriculturist.
• Restricted activities within the TPZs are to be specified in construction documentation & drawings and; subject to prior approval by the Arboriculturist through the development and construction phases as identified. The TPZs are to be treated as a “No Go” zones and provision for such activities will need to be facilitated elsewhere on site. For example: -
o Traversing and/or Parking of plant machinery or vehicles where root protection measures have not been implemented;
o Storage for construction or deleterious materials where root protection measures have not been implemented;
o Mechanical removal of vegetation; o Unprotected vehicle refuelling; o Preparation of chemicals and concrete washout; o Areas to dump construction and general waste; o Wash down or cleaning of any kind; o Locations for site offices or toilets; o Excavation and dewatering activities; o Or any other activity that may harm or injure the tree above or below ground.
• Regular Arboricultural inspections &/or supervision during the construction/works period will be critical in ensuring tree welfare is preserved.
• Determining appropriate tree protection penalties for non-compliance (e.g. based on individual Amenity Tree Valuation ($) or damage to tree parts) can be helpful in supporting tree retention outcomes.
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6. Conclusions
6.1 The trees surveyed for this report currently provide valuable environmental, habitat, aesthetic/ amenity and social benefits for the local area, the value of these services can be expected to increase over time as urbanisation of the local area continues. NOTE: This is particularly relevant for the mature indigenous trees within the area of assessment, which
(largely due to development projects) are becoming increasingly rare in the urban environment.
6.2 While each tree was visually assessed from ground level to identify structural and/or health issues, further Arboricultural investigations/inputs may be required to clarify observations made at the time of inspection and subsequently provide a more definitive conclusion on specific or further recommendations that may be required. Further investigations will be required for trees identified in Appendix B as ‘Seek Further Arboricultural Advice’ prior to making specific recommendations regarding their retention into the final landscape.
6.3 Achieving the successful preservation & protection of the assessed trees will require specialist and timely Arboricultural input into the development of construction specifications and drawings. Further consultation with the Arboriculturist will be required regarding:
• The finalisation of a tree sensitive design for the project;
• The type of works being proposed around the trees and their associated methodologies,
• The impact these works may have on the trees and;
• How best to limit construction impact during and after the construction and development phase – refer Section 5. Preliminary Tree Retention Guidelines for introductory detail.
6.4 Consideration needs to be given to the specialised nature of the tree management and remedial works contained within this report which; if undertaken or specified incorrectly, may have a negative effect on tree health and/or structure. It is imperative that only arboricultural organisations with staff suitably qualified and experienced in tree management and/or tree preservation are engaged in monitoring, maintaining, and managing the trees into the future. Any further recommendations made should be specified by an (minimum) Australian Qualification Framework Level 5 Arborist (AQF 5 – Diploma in
Arboriculture); in keeping with the Australian Standards AS 4970 ‘Protection of Trees on Development
Sites’ 2009 & AS 4373 ‘Pruning of Amenity Trees’ 2007 and be approved prior to commencement by the Arboriculturist.
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7. Recommendations 7.1 Significant Trees That a high priority be afforded to achieving the retention and protection of the significant native and indigenous veteran trees currently growing within the assessed area by;
• Developing concept and final designs which recognise and accommodate the significant trees/stands of trees within the area assessed and;
• Ensuring the trees identified for retention receive appropriate levels of arboricultural inputs prior to, during and post project works, to ensure their successful retention and longevity.
7.2 Smaller Trees That the numerous smaller trees (typically with <300mm diameter), that were not identified for assessment within the scope of this report, are afforded the required level of arboricultural inputs to achieve their successful long term retention into the landscape and which recognise the long term environmental and amenity values they provide to the area. 7.3 Potential Relocation of Trees Consideration be given to tree species considered potentially amenable to the transplantation (relocation) process to be utilised elsewhere within the project (or the greater City of Fremantle). 7.4 Arboricultural Inputs into the Project to Achieve Successful Tree Retention That a collaborative Arboricultural review and refinement of the proposed design and work methodology(s) is undertaken, to develop and implement tree sensitive designs, management and remedial requirements that are proposed to occur and/or encroach within the “Nominal” TPZ’s of the subject trees identified for retention. 7.5 Regular Arboricultural inspections Regular inspections throughout the project should be undertaken by a suitably qualified and experienced Arboriculturist to assess, identify and report any tree related changes that may occur.
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8. References & Reading Boland, D., Brooker, M., Chippendale, G., Hall, N., Hyland, B., Johnston, R., Kleinig, D., McDonald, M., Turner, J., 2002, Forest Trees of Australia, 4th ed., CSIRO, Australia Fagg, M., & Wrigley, J., 1996, Australian Native Plants, Reed New Holland, Australia
Harris, R., Clarke, J., & Matheny, N,.2004, Arboriculture – Integrated Management of Landscape Trees,
Shrubs and Vines, 4th ed, Prentice-hall inc, New Jersey
Le Roux, D. S Et Al 2014, ‘The Future of Large Old Trees in Urban Landscapes’ The Fenner School of Environment and Society, the Australian National University, Canberra, Australia Lonsdale, D., 1999, Principles of Hazard Tree Assessment and Management, The Stationary Office, Norwich, UK Powell, R., 1990, Leaf and Branch Trees and Tall Shrubs of Perth, Department of Conservation and Land Management, Perth, Western Australia Mattheck, C.& Breloer, H.,1999, The Body Language of Trees -A handbook for failure analysis, The Stationary Office, Norwich, UK NearMap Aerial Imagery, 2018, via http://www.nearmap.com/photomaps/ (accessed July 2018) Standards Australia, 2007, Australian Standard AS4373: Pruning of amenity trees, Standards Australia, Sydney, Australia Standards Australia, 2009, Australian Standard AS4970: Protection of Trees on Development Sites, Standards Australia, Sydney, Australia The University of Melbourne, 2016, Burnley Plant Guide electronic database, University of Melbourne, http://www.bpg.unimelb.edu.au
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Appendix B – Table of Results Field Definitions Point ID - States individual tree identification number (Supplied by GHD) Species Identification - States the genus, species and common name for each tree Tree Height - Measured in meters taken from ground level to the highest point of the trees canopy Canopy Spread - Measured in meters taken at the widest points of the trees canopy Trunk Diameter - Accurate measurement of trunk diameter in millimetres. Measured at 1.4 meters above ground level for single stemmed trees; immediately below bifurcation in co-dominant stemmed trees or at ground level for multi stemmed trees Tree Health: - States the health of the tree at the time of assessment. (Good, Acceptable, Questionable, Poor, Dead). Refer Health and Structure Definitions below for further explanation Tree Structure: - States the structure of the tree at the time of assessment. (Good, Acceptable, Questionable, Poor) Refer Health and Structure Definitions below for further explanation Age Status: - States the estimated age at the time of assessment. (Juvenile, Semi Mature, Mature, Post Mature) Tree Protection Zone (TPZ) Radius: - Minimum root zone required to be protected during construction, development or during any activities that may encroach into the zone which may cause harm or injure the tree and its parts. Measured in meters, as a radius from centre of trunk. Calculated as: x12 DBH. Note: -
TPZ is to not be <2 meters and; not >15 meters. As per Australian Standards AS 4970 “Protection of trees
on development sites” 2009. Structural Root Zone (SRZ) Radius - Root zone required for tree stability only. Measured in meters, as a radius from centre of trunk. Calculated as: - (Diameter x 50) ^ 0.42 x 0.64. (For trees with a diameter
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less than 150mm the SRZ is 1.5-meter radius - Palms and Monocots are excluded from SRZ Formula). As per Australian Standards AS 4970 “Protection of trees on development sites” 2009 Useful Life Expectancy: - Provides estimation of the individual trees remaining Useful Life Expectancy (ULE) (<5 Years, 5 – 10 years, 10 – 40 years, or 40+).
Observations & Comments: - Provides general information relevant for the individual specimen Preliminary Recommendation: Provides preliminary recommendations for the assessed specimens remove, retain, or seek further Arboricultural advice, considering the proposed development for the site. Eastings & Northings:- Provides X & Y location coordinates for the individual.
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Health and Structure Definitions Tree
Health Definition
Good
Tree displays typical foliage size, colouration and density for a specimen of the species. Seasonal stem elongation and wound wood response also appears typical. A build-up of seasonal deadwood may be
present.
Acceptable
Tree displays typical foliage size and colouration. Canopy mass may be slightly thin or have more than
typical amount of deadwood present within canopy. Seasonal stem elongation and wound wood response may be inhibited. Tree may be displaying a response to recently changed environs.
Questionable
Tree displays less than typical foliage size, colouration and density for a specimen of the species. Large
sections of deadwood may be evident in upper canopy. Seasonal stem elongation and wound wood response may be suppressed. Retention of the tree requires remedial works in order for the specimen to
become “Acceptable”.
Poor
Tree canopy indicates decline. Tree displays less than 30% live canopy mass and will be problematic to
long term retention. Beginning of spiral of decline. Remedial works unlikely to improve tree health.
Dead
Tree has no living conductive tissue within its main stem.
Tree
Structure Definition
Good
Primary frame work has structure that is typical of the species at its stage of maturity. Secondary (and
beyond) branch attachments are typical of the species. The tree may have inconsequential/minor imperfections.
Acceptable
Primary frame work has structure that is typical of the species at its stage of maturity, but which
presents defects that may need to be monitored. Secondary (and beyond) branch attachment are typical of the species, but presents structural defects that may require remedial work within the scope of ongoing maintenance. Can include storm damaged and Lopped trees that have developed acceptable
branch attachment (subject to species).
Questionable
Primary and secondary frame work has evidence of its structural integrity being compromised (i.e.:
Storm damage, deleterious pruning, breaks, cracks, fractures, included bark, major decay, poor branch taper etc.). Retention of the tree requires remedial works in order for the specimen to become
“Acceptable”.
Poor
Tree displays significant structural defects that will be problematic to long term retention. i.e.: extensive
stem cavities, split/broken unions. Remedial works unlikely to improve form.
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 1 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
Tree Survey July 2018
Point_ID Species Common NameTree Height (m)
Canopy Spread (m)
Trunk Diameter (m)
Tree Health Tree Structure Age TPZ Radius (m)
SRZ Radius (m)
Useful Life Expectancy (ULE)
Observations and Comments Preliminary Recommendation Easting Northing
Veg 57 Eucalyptus sp. Gum Tree 5 14 0.70 acceptable questionable mature 8.400 2.849 5 to 10 significant previous branch failures; trunk wounds; dead wood noted within canopy Seek further Arboricultural advice 383507.888 6453176.263Veg 58 Eucalyptus botryoides Southern Mahogany 8 15 0.50 acceptable good mature 6.000 2.474 40 + good specimen Retain 383481.813 6453183.709
7.200 2.6705 to 10 canopy indicates decline; dead wood noted within canopy; tree bifurcates at ground level Seek further Arboricultural advice 383476.713 6453318.627
Veg 68 Callitris preissii Rottnest Island Pine 5 4 0.28 good questionable mature 3.360 1.939 10 to 40 tree displays multi stem form, branch failures noted within canopy Retain 383498.509 6453314.989
Veg 69 Agonis flexuosaWest Australian Weeping Pepermint 5 6 0.5 good questionable mature
6.000 2.47410 to 40 tree displays multi stem form, previous lopping, dead wood noted in canopy, LV power overhead Seek further Arboricultural advice 383496.674 6453324.888
Veg 70 Eucalyptus conferruminata Bushy Yate 5 7 0.25 good good mature 3.000 1.849 10 to 40 good specimen, LV power overhead Retain 383495.388 6453333.153
Veg 71 Eucalyptus leucoxylon South Australian Yellow Gum 6 9 0.31 questionable acceptable mature 3.720 2.024
5 to 10 canopy indicates decline; LV power overhead Seek further Arboricultural advice 383495.006 6453358.62
Veg 72 Eucalyptus leucoxylon South Australian Yellow Gum 5 6 0.14 questionable acceptable mature 2.000 1.500
5 to 10 canopy indicates decline; canopy sparse, canopy/ light -pole/sign conflict Seek further Arboricultural advice 383497.159 6453355.376Veg 73 Eucalyptus botryoides Southern Mahogany 13.5 20 0.87 acceptable questionable mature 10.440 3.121 10 to 40 tree displays leggy form, canopy slightly sparse, previous lopped Seek further Arboricultural advice 383477.231 6453337.196Veg 74 Eucalyptus botryoides Southern Mahogany 14 14 0.6 acceptable acceptable mature 7.200 2.670 40 + dead wood, canopy slightly sparse and canopy suppression noted Retain 383480.521 6453345.235Veg 75 Eucalyptus botryoides Southern Mahogany 14 19 0.78 acceptable acceptable mature 9.360 2.981 40 + tree displays leggy form, dead wood and canopy slightly sparse Retain 383476.258 6453378.086Veg 76 NA NA Removed 383474.786 6453381.898
5 to 10 previously lopped, tree displays leggy form, dead wood, canopy slightly sparse and indicates decline Seek further Arboricultural advice 383475.759 6453391.935
Veg 80 Eucalyptus robusta Swamp Mahogany 9 10 0.52 acceptable acceptable mature 6.240 2.515 10 to 40 canopy slightly sparse, dead wood noted within canopy, bifurcates at ~2 m Retain 383684.164 6453375.774Veg 81 Eucalyptus robusta Swamp Mahogany 9 11 0.51 acceptable acceptable mature 6.120 2.494 10 to 40 canopy slightly sparse, dead wood noted within canopy Retain 383680.065 6453384.134Veg 82 Eucalyptus robusta Swamp Mahogany 8 11 0.48 questionable acceptable mature 5.760 2.431 5 to 10 canopy indicates decline and canopy sparse Seek further Arboricultural advice 383683.138 6453394.266Veg 83 Eucalyptus robusta Swamp Mahogany 9 8 0.38 acceptable acceptable mature 4.560 2.204 5 to 10 bifurcates at ~1.8m, canopy sparse and indicates decline Seek further Arboricultural advice 383696.783 6453354.286
Veg 84 Corymbia ficifoliaWest Autralian Red Flowering Gum 8 14 0.48 good acceptable mature
5.760 2.43140 + bifurcates @ ~1.2m, good specimen; minor wounding noted to trunk Retain 383702.284 6453331.226
Veg 85 Eucalyptus sp. Gum Tree 1.5 2 0.04 good good juvenile 2.000 1.500 40 + Removed replaced with sapling Retain 383698.074 6453333.733Veg 86 Livistona chinensis Chinese Fan Palm 3 3 0.4 good good mature 2.500 NA 40 + good specimen; possible transplant Retain 383888.356 6453400.702Veg 87 Livistona chinensis Chinese Fan Palm 2.5 3 0.39 good good mature 2.500 NA 40 + good specimen; possible transplant Retain 383888.615 6453389.399Veg 88 Ficus microcarpa var. hillii Hills Weeping Fig 13 20 0.6 good good mature 7.200 2.670 40 + surface roots noted, interveinal chlorosis otherwise good specimen Retain 384164.317 6453407.791
Veg 89 Eucalyptus grandis Rose Gum 15 14 0.47 good acceptable mature 5.640 2.410
40 + surface roots; tree displays leggy form, previous branch failures, rubbing crossing stem Retain 384173.029 6453343.98Veg 90 Ficus microcarpa var. hillii Hills Weeping Fig 15 14 0.65 good good mature 7.800 2.762 40 + surface roots Retain 384166.854 6453326.312Veg 91 NA NA Removed 384167.254 6453314.886
40 + bifurcates at ~3 m, included union and swelling noted, tree displays leggy form, previous branch failures, surface root damage, included unions noted through canopy Retain 384599.507 6453302.375
40 + light pole interference, ~7 m bark included union with swelling noted, tree displays leggy form Retain 384567.324 6453301.395Veg 134 Eucalyptus gomphocephala Tuart 19 16 0.72 good acceptable mature 8.640 2.883 40 + bifurcates at ~3 m, tree displays leggy form, wasp gall noted in canopy Retain 384576.707 6453301.786
5 to 10 previous significant branch failure at ground level, canopy suppression and canopy slightly sparse Retain 384360.596 6453286.991Veg 154 NA NA Removed 384354.51 6453288.181Veg 155 NA NA Removed 384358.462 6453292.371
12.000 3.30910 to 40 tree displays multi stem form, dead wood & borer noted within canopy Retain 384750.02 6453279.35
Veg 266 Agonis flexuosaWest Australian Weeping Pepermint 6 10 1.2 good acceptable mature
14.400 3.57340 + tree displays multi stem form ,friction stems noted within canopy Retain 384745.153 6453283.645
Veg 267 Eucalyptus platypus Round - leaved Moort 11 19 0.9 good acceptable mature 10.800 3.166 10 to 40 good specimen, tree displays multi stem form at ~1 m, Retain 383734.422 6453263.463
5 to 10terminal decline, bifurcates at ~2 m, bark inclusions noted, previous branch failure, dead wood, damage to surface roots noted Seek further Arboricultural advice 383884.466 6453279.251
10 to 40previously lopped at ~6 m, tree displays leggy form, swelling noted at points of attachment, dead wood Seek further Arboricultural advice 383817.773 6453266.842
Veg 334 Eucalyptus botryoides Southern Mahogany 13 15 0.57 good acceptable mature 6.840 2.613 10 to 40 bifurcates at ~2 m, tree displays leggy form, previous branch failures Retain 383802.958 6453266.065Veg 336 Eucalyptus botryoides Southern Mahogany 10 13 0.4 acceptable acceptable mature 4.800 2.252 10 to 40 canopy slightly sparse, tree displays leggy form Retain 383791.819 6453279.977
Veg 337Eucalyptus camaldulensis var. camaldulensis River Red Gum 12 19 0.76 good good mature
9.120 2.94940 + light pole interference, good specimen Retain 383771.991 6453277.731
10 to 40 canopy starting to indicate decline, dead wood basal wounding noted, significant hollow, feeding cocky, necrotic tissue noted on main stem Seek further Arboricultural advice 384474.879 6453273.534
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 6 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
Tree Survey July 2018
Veg 351 Eucalyptus marginata Jarrah 11 8 0.41 questionable acceptable mature 4.920 2.276 10 to 40 damage to main stem, canopy indicates decline, dead wood Retain 384471.381 6453273.538Veg 352 Corymbia calophylla Marri 16 11 0.54 acceptable good mature 6.480 2.555 10 to 40 cocky feeding, canopy slightly sparse, dead wood noted throughout canopy Retain 384470.427 6453271.15Veg 353 Eucalyptus gomphocephala Tuart 12 13 0.6 acceptable acceptable mature 7.200 2.670 40 + major dead wood, canopy slightly sparse and suppression Retain 384466.62 6453272.226Veg 354 Eucalyptus cladocalyx Sugar Gum 17 9 0.48 acceptable acceptable mature 5.760 2.431 40 + tree displays leggy form Retain 384475.615 6453262.606Veg 363 Eucalyptus cladocalyx Sugar Gum 16 12 0.49 acceptable acceptable mature 5.880 2.453 10 to 40 tree displays leggy form, bifurcates at ~5m, bird damage Retain 384462.951 6453263.499Veg 364 Corymbia calophylla Marri 11 4 0.22 acceptable acceptable mature 2.640 1.752 40 + dead wood, canopy suppression, bird feeding evidence Retain 384458.86 6453269.766
10.800 3.1665 to 10 canopy indicates decline, main union has failed & contains active beehive, Seek further Arboricultural advice 384189.533 6453278.379
Veg 386 NA NA Dead Tree 384185.02 6453277.085Veg 387 Pinus pinaster Maritime Pine 22 15 0.81 acceptable acceptable mature 9.720 3.029 10 to 40 canopy suppression, dead wood noted throughout canbopy Retain 384177.953 6453278.4Veg 388 Pinus pinaster Maritime Pine 22 16 0.96 acceptable acceptable mature 11.520 3.253 10 to 40 branch failures noted throughout canopy, dead wood, canopy suppression Retain 384169.448 6453280.426Veg 389 Pinus pinaster Maritime Pine 22 16 0.91 acceptable questionable mature 10.920 3.181 10 to 40 bifurcates at ~3 m, canopy suppression noted Seek further Arboricultural advice 384163.708 6453280.277Veg 391 Pinus pinaster Maritime Pine 16 14 0.68 acceptable questionable mature 8.160 2.814 10 to 40 dead wood, canopy suppression Seek further Arboricultural advice 384152.187 6453280.205Veg 392 Pinus pinaster Maritime Pine 23 17 1.2 acceptable questionable mature 14.400 3.573 10 to 40 bifurcates at ~3 m, multi stem form, dead wood, canopy suppression noted Seek further Arboricultural advice 384146.639 6453280.154Veg 393 NA NA Removed 384140.591 6453279.699Veg 394 Eucalyptus grandis Rose Gum 17 14 0.74 good good mature 8.880 2.916 40 + tree displays leggy form otherwise reasonable specimen Retain 384377.878 6453257.716Veg 395 Erythrina x sykseii Coral Tree 10 12 0.7 good questionable mature 8.400 2.849 10 to 40 previously lopped at ~2 m, rubbing crossing stems, bark inclusions, Seek further Arboricultural advice 384282.389 6453264.86
Veg 396 Eucalyptus leucoxylon South Australian Yellow Gum 4 7 0.32 good acceptable mature 3.840 2.051
10 to 40
canopy suppression, otherwise reasonable specimen, in a row of 6 e. leucoxlyon ranging health from good to acceptable, good to acceptable structure, canopy suppression, dead wood, otherwise reasonable specimens, reasonable stand Retain 384199.731 6453258.217
Veg 397 Eucalyptus leucoxylon South Australian Yellow Gum 6 9 0.47 good acceptable mature 5.640 2.410
10 to 40 trifurcates at ~1.2m, otherwise good specimen, canopy suppression noted Retain 384199.245 6453260.958
4.200 2.1295 to 10 tree displays multi stem form, previous branch failures and canopy suppression noted Seek further Arboricultural advice 383354.212 6453392.335
Veg 424 NA NA Removed weedy shrubs present 383378.198 6453353.734Veg 425 NA NA Removed weedy scrubs around 383377.9 6453346.934Veg 426 Ceratonia seliqua Carob Tree 7 6 0.35 good acceptable mature 4.200 2.129 40 + Good specimen viewed at distance Retain 383375.77 6453343.84Veg 427 NA NA Removed surrounded by weedy shrubs 383377.48 6453376.424
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 7 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
Tree Survey July 2018
Veg 428Eucalyptus camaldulensis var. obtusa Northern River Red Gum 11 8 0.42 questionable acceptable mature
5.040 2.2995 to 10 canopy indicates decline and canopy sparse, dead wood noted Seek further Arboricultural advice 383377.36 6453383.237
Veg 429 Casuarina sp. Sheoak 6 6 0.32 good good mature 3.840 2.051 10 to 40 Tree displays multi stem form Retain 383374.834 6453390.156Veg 430 Eucalyptus sideroxylon Red Ironbark 9 6 0.4 good acceptable mature 4.800 2.252 10 to 40 reasonable specimen Retain 383298.249 6453547.717Veg 431 Acacia sp. Wattle Species 4 5 0.2 acceptable acceptable mature 2.400 1.683 5 to 10 bifurcates at ~300mm, dead wood noted within canopy Retain 383297.965 6453556.671Veg 432 Acacia sp. Wattle Species 5 5 0.4 good acceptable mature 4.800 2.252 5 to 10 tree displays multi stem form, otherwise reasonable specimen Retain 383296.564 6453565.507Veg 433 Eucalyptus gomphocephala Tuart 14 15 0.7 acceptable acceptable mature 8.400 2.849 40 + tree displays leggy form, included unions, otherwise reasonable specimen Retain 383296.333 6453585.869
Veg 443Eucalyptus camaldulensis var. obtusa Northern River Red Gum 10 15 0.6 good questionable mature
7.200 2.67040 + tree displays multi stem, leggy form Seek further Arboricultural advice 383350.37 6453545.126
Veg 444Eucalyptus camaldulensis var. obtusa Northern River Red Gum 10 11 0.65 good acceptable mature
7.800 2.76240 + tree displays leggy form, bifurcates at ~1.2, previous branch failures Seek further Arboricultural advice 383349.592 6453553.823
Veg 445Eucalyptus camaldulensis var. obtusa Northern River Red Gum 10 9 0.37 acceptable questionable mature
4.440 2.18040 + canopy suppression tree displays leggy form, bifurcates 3m Seek further Arboricultural advice 383351.462 6453550.768
Veg 446Eucalyptus camaldulensis var. camaldulensis River Red Gum 10 10 0.4 good questionable mature
4.800 2.25240 + bifurcates @ ~1.8m, tree dispalys leggy form Seek further Arboricultural advice 383348.322 6453579.001
Veg 449 Eucalyptus platypus Round - leaved Moort 8 15 0.5 good good mature 6.000 2.474 10 to 40 good specimen, previous branch failures and pruning Retain 383865.975 6453301.826Veg 450 Ficus microcarpa var. hillii Hills Weeping Fig 13 17 0.88 good good mature 10.560 3.136 40 + surface roots good specimen Retain 383920.414 6453307.29Veg 451 Ficus microcarpa var. hillii Hills Weeping Fig 13 17 0.93 good good mature 11.160 3.210 40 + surface root, minor dead wood, good specimen Retain 383932.438 6453307.453Veg 452 Ficus microcarpa var. hillii Hills Weeping Fig 14 15 0.88 good good mature 10.560 3.136 40 + surface root, previous branch failures, good specimen Retain 383944.639 6453307.72
14.400 3.57340 + canopy suppression, multi stem form, main stem partially failed at ~1.4m, dead wood Seek further Arboricultural advice 383922.228 6453279.625
Veg 454 Melia azedarach Cape Lilac 8 7 0.36 questionable poor mature 4.320 2.155 <5 extensive internal decay in main stem, bee hive hollows noted throughout Seek further Arboricultural advice 384038.179 6453279.591Veg 455 Grevillea robusta Silky Oak 13 10 0.34 good acceptable mature 4.080 2.104 10 to 40 dead wood, reasonable specimen, swelling noted on trunk Seek further Arboricultural advice 384027.689 6453281.19Veg 456 Pinus halepensis Aleppo Pine 16 15 0.9 acceptable questionable mature 10.800 3.166 10 to 40 bifurcates at ground level, dead wood noted, canopy slightly sparse Seek further Arboricultural advice 384019.758 6453273.409Veg 457 Pinus pinaster Maritime Pine 16 10 0.48 questionable acceptable mature 5.760 2.431 <5 canopy indicates decline, major dead wood, scalping to surface roots Seek further Arboricultural advice 384000.523 6453274.063Veg 458 Pinus pinaster Maritime Pine 15 10 0.46 acceptable acceptable mature 5.520 2.388 10 to 40 canopy suppression, dead wood Retain 383994.34 6453273.654Veg 459 Pinus pinaster Maritime Pine 5 5 0.24 acceptable questionable semi mature 2.880 1.817 10 to 40 canopy interference with fence, wounding noted on trunk, canopy suppression, Seek further Arboricultural advice 383987.906 6453273.503
Veg 460 Eucalyptus leucoxylon South Australian Yellow Gum 8 10 0.35 questionable acceptable mature 4.200 2.129
5 to 10 canopy indicates decline, canopy sparse Seek further Arboricultural advice 384063.974 6453261.384
5 to 10 significant branch failures, dead wood, large shallow hollow at ~1 m from ground level Seek further Arboricultural advice 384073.273 6453264.926
5 to 10 significant basal wounding, previous branch failures, tree on lean, heaving noted at ground level Seek further Arboricultural advice 384061.621 6453276.946
Veg 463 Pinus pinaster Maritime Pine 17 18 0.86 good acceptable mature 10.320 3.106
10 to 40 dead wood, previous branch failures, wound on lower trunk, otherwise reasonable specimen Retain 384071.219 6453278.182Veg 464 Pinus pinaster Maritime Pine 16 15 0.69 good good mature 8.280 2.832 10 to 40 dead wood, canopy suppression, otherwise reasonable specimen Retain 384083.003 6453278.331
Veg 465 Pinus pinaster Maritime Pine 16 14 0.84 good acceptable mature 10.080 3.076
10 to 40 bifurcates at ~3 m, dead wood, rubbing crossing stems, canopy suppression, otherwise reasonable specimen Retain 384088.935 6453279.172
Veg 472 Eucalyptus conferruminata Bushy Yate 8 13 0.45 acceptable acceptable mature 5.400 2.366 5 to 10 dead wood, canopy slightly sparse, Retain 383998.387 6453247.99Veg 485 Ficus microcarpa var. hillii Hills Weeping Fig 14 19 0.9 good good mature 10.800 3.166 40 + surface root good specimen Retain 384054.499 6453310.986Veg 486 Ficus microcarpa var. hillii Hills Weeping Fig 13 17 0.81 good good mature 9.720 3.029 40 + surface roots Retain 384042.437 6453310.526Veg 487 Araucaria heterophylla Norfolk Island Pine 14 5 0.31 questionable good mature 3.720 2.024 40 + canopy suppression canopy sparse Seek further Arboricultural advice 384034.6 6453311.992Veg 488 Ficus microcarpa var. hillii Hills Weeping Fig 14 15 0.77 good good mature 9.240 2.965 40 + surface root good specimen Retain 384030.05 6453310.141Veg 489 Ficus microcarpa var. hillii Hills Weeping Fig 13 15 0.76 good good mature 9.120 2.949 40 + surface root minor dead wood; good specimen Retain 384017.855 6453309.866Veg 490 Ficus microcarpa var. hillii Hills Weeping Fig 12 15 0.76 good good mature 9.120 2.949 40 + surface root rubbing crossing stem good specimen Retain 384005.65 6453309.712Veg 491 Ficus microcarpa var. hillii Hills Weeping Fig 12 16 0.63 good good mature 7.560 2.726 40 + surface root good specimen Retain 383996.097 6453310.916Veg 492 Araucaria heterophylla Norfolk Island Pine 14 9 0.55 good good mature 6.600 2.575 40 + previous branch failures, lopping, reasonable specimen Retain 383993.394 6453309.013Veg 493 Ficus microcarpa var. hillii Hills Weeping Fig 13 17 0.67 good good mature 8.040 2.797 40 + surface root canopy suppression, minor dead wood Retain 383968.926 6453308.545Veg 494 Ficus microcarpa var. hillii Hills Weeping Fig 14 19 0.97 good good mature 11.640 3.267 40 + surface root, minor dead wood Retain 383956.807 6453308.248Veg 496 NA NA Removed 383315.527 6453314.426Veg 497 Eucalyptus botryoides Southern Mahogany 16 15 0.94 acceptable questionable mature 11.280 3.224 10 to 40 previously lopped, leggy form, Retain 383304.935 6453313.801Veg 498 Eucalyptus botryoides Southern Mahogany 14 15 0.78 questionable questionable mature 9.360 2.981 10 to 40 major branch failures, dead wood, canopy starting to indicate decline Seek further Arboricultural advice 383304.792 6453330.649
10 to 40 termite mud noted on trunk - no active termites observed, previously lopped, dead wood noted throughout canopy Seek further Arboricultural advice 383303.241 6453384.144
Veg 500 Eucalyptus botryoides Southern Mahogany 14 14 0.75 questionable acceptable mature 9.000 2.933 10 to 40 previously lopped, canopy starting to indicate decline, Seek further Arboricultural advice 383304.243 6453346.868Veg 501 Eucalyptus cladocalyx Sugar Gum 4 3 1 good questionable mature 12.000 3.309 5 to 10 previously removed, coppice regrowth stand of approx. 12 stems Seek further Arboricultural advice 383312.554 6453429.858Veg 502 Eucalyptus cladocalyx Sugar Gum 13 18 1.08 good acceptable mature 12.960 3.418 10 to 40 tree dispalys leggy form, lopped at ~3 m, otherwise reasonable specimen Retain 383301.92 6453429.35Veg 503 Eucalyptus cladocalyx Sugar Gum 13 15 0.91 acceptable acceptable mature 10.920 3.181 10 to 40 tree dispalys leggy form, lopped at ~3 m, otherwise reasonable specimen Retain 383301.349 6453455.342
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 8 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
8.400 2.8495 to 10 tree displays multi stem form, dead wood, canopy suppression and sparse Retain 383475.979 6453296.554
Veg 544 Eucalyptus leucoxylon South Australian Yellow Gum 5 7 0.45 acceptable acceptable mature 5.400 2.366
10 to 40 canopy suppression, verge tree Montreal St under high voltage power Retain 383500.15 6453242.571Veg 545 Eucalyptus rudis Flooded Gum 16 10 0.5 acceptable acceptable mature 6.000 2.474 40 + bifurcates at ~500mm, otherwise reasonable specimen Retain 383545.175 6453256.639
40 + possibly 2 more hollows primary leader, tree dispalys leggy form, wasp gall, hollows, dead wood, minor basal wound noted Retain 383558.189 6453269.955
40 +good specimen bifurcates @ ~2 m, minor dead wood; tree located adjacent development - no TPZ fencing installed Retain 384514.802 6453408.836
Veg 567 Corymbia calophylla Marri 12 17 0.77 good good mature 9.240 2.965
40 +cocky feeding, previous branch failure, weeping kino noted on main stem , reasonable specimen, dead wood noted within canopy Retain 384457.235 6453288.884
15.000 4.4285 to 10 multi stem form, canopy indicate decline, multiple previous failures, dead wood Seek further Arboricultural advice 384253.283 6453289.338
Veg 572 Eucalyptus botryoides Southern Mahogany 23 27 1.006 good questionable mature 12.072 3.318 10 to 40 rubbing stem with adjacent tree, major branch failures, tree dispalys leggy form Seek further Arboricultural advice 384514.48 6453263.411
10 to 40 significant previous branch failure, bifurcates at ~6 m, dead wood and decay noted at union, damage to surface roots, termite mud noted - no active termites observed Seek further Arboricultural advice 384565.323 6453272.873
Veg 577 Eucalyptus botryoides Southern Mahogany 20 27 1.33 acceptable acceptable mature 15.000 3.730 10 to 40 tree dispalys leggy form, major dead wood, previous branch failures, Retain 384577.051 6453274.018
40 + good old specimen, basal wounding, wounding on trunk, hollows throughout lower canopy, tree adjacent to high voltage power, otherwise good old specimen Retain 383510.485 6453269.083
canopy suppression, dead wood, canopy starting to indicate decline, included branch unions, multi stem form Seek further Arboricultural advice 383923.553 6453271.848
Veg 584 Eucalyptus gomphocephala Tuart 26 17 1.17 good acceptable mature 14.040 3.535 40 + bifurcates at ground level, rubbing crossing stems, good specimen, dead wood Retain 383949.19 6453268.946
Veg 585 Eucalyptus gomphocephala Tuart 25 25 2.6 good good mature 15.000 4.944
40 + multi stem form stand of x5, bees, dead wood, previous branch failure, good old specimen Retain 384431.276 6453280.986Veg 587 Eucalyptus gomphocephala Tuart 23 24 1.65 good acceptable mature 15.000 4.084 40 + dead wood, branch failure, good old specimen Retain 384414.663 6453266.341Veg 588 Acacia sp. Wattle Species 8 9 0.33 good questionable mature 3.960 2.077 5 to 10 canopy suppression, branch failures Retain 383295.371 6453567.591
Veg 589 Metrosideros excelsa New Zealand Christmas Tree 2 2 0.1 acceptable acceptable semi mature 2.000 1.500
40 + reasonable specimen Retain 383297.658 6453569.137Veg 590 Callitris preissii Rottnest Island Pine 4 2 0.2 acceptable acceptable semi mature 2.400 1.683 5 to 10 canopy suppression noted Retain 383299.526 6453567.615Veg 591 Callitris preissii Rottnest Island Pine 5 3 0.15 good acceptable semi mature 2.000 1.500 5 to 10 multi stem form, canopy suppression Retain 383299.336 6453565.17
Veg 592 Eucalyptus sideroxylon Red Ironbark 9 m 5 0.37 good acceptable mature 4.440 2.180
10 to 40reasonable specimen, 2 x new zealand juvenile Christmas trees in adjacent verge at base, juvenile Acacia sp . at base. acceptable health and structure for base trees. Retain 383299.933 6453552.838
40 + lopped at ~3 m, dead wood, rubbing crossing stems, minor wasp gall, previous branch failures, otherwise reasonable specimen Retain 383935.191 6453279.859
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 10 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
10 to 40canopy slightly sparse, leggy form, dead wood, gall wasp, hollows noted in lower portion of canopy, one with bee hive Retain 383569.694 6453270.46
Veg 604 Olea europaea European Olive 4 4 0.3 acceptable acceptable mature 3.600 1.996 10 to 40 tree displays multi stem form Retain 383501.573 6453209.573Veg 605 Olea europaea European Olive 5 5 0.45 good acceptable mature 5.400 2.366 10 to 40 tree displays multi stem form Retain 383501.539 6453213.137Veg 606 Olea europaea European Olive 5 4 0.2 good acceptable mature 2.400 1.683 10 to 40 tree displays multi stem form compose regrowth under high voltage Retain 383501.454 6453216.45Veg 607 Eucalyptus conferruminata Bushy Yate 5 8 0.31 good good mature 3.720 2.024 10 to 40 good specimen, LV overhead power, previous branch failure Retain 383496.077 6453329.43Veg 608 Eucalyptus albopurpurea Purple Gum 2.5 5 0.13 acceptable acceptable mature 2.000 1.500 10 to 40 canopy suppression noted Retain 383493.561 6453355.343Veg 609 Acacia saligna Orange Wattle 6 4 0.26 questionable acceptable mature 3.120 1.879 5 to 10 canopy indicates decline Seek further Arboricultural advice 383477.426 6453365.716
Veg 610 Corymbia ficifoliaWest Autralian Red Flowering Gum 5 4 0.14 good acceptable mature
2.000 1.50010 to 40 tree displays leggy form, slightly sparse, bifurcates @ ~2m Retain 383683.258 6453307.009
10 to 40 canopy slightly sparse, mechanical impact on trunk, previous branch failure, otherwise reasonable specimen Retain 384123.934 6453284.34
Veg 647 Eucalyptus nicholiiNarrow -leaved Black Peppermint 9 7 0.27 good acceptable semi mature
3.240 1.91040 + bifurcates at ~3 m, canopy suppression, otherwise reasonable specimen Retain 384099.011 6453281.174
Veg 648 Olea europaea European Olive 6 8 0.4 good good mature 4.800 2.252 40 + bifurcates at ~400mm, otherwise good specimen Retain 383505.088 6453245.59
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 11 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
9.600 3.01310 to 40 basal wounding Retain 383684.0565 6453315.606
Veg 778 Agonis flexuosaWest Australian Weeping Pepermint 2 2.5 0.5 good good Juvenile
6.000 2.47440 + good specimen Retain 383487.5225 6453297.39
Veg 779 Tipuana tipu Pride of Bolivaia 15 15 ~.500 good acceptable mature 15.000 2.470 40 + good specimen viewed from distance Retain 383444.003 6453335.076Veg 780 Banksia grandis Bull Banksia 4 4 0.13 good good mature 2.000 1.500 10 to 40 good specimen Retain 383479.8303 6453385.111Veg 781 Pheonix canariensis Canary Island Date Palm 8 8 0.7 good good mature 5.000 NA 40 + good specimen; possible transplant Retain 383450.3403 6453296.664
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 13 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
Tree Survey July 2018
Veg 782 Callistemon viminalis Weeping Bottlebrush 4 4 0.2 good good mature 2.400 1.683 10 to 40 bifurcates at ~300mm Retain 383443.2621 6453294.87
Veg 783 Schefflera actinophylla Queensland Umbrella Tree 7 9 0.65 good good mature7.800 2.762
10 to 40 good specimen Retain 383438.0325 6453296.096Veg 784 Eucalyptus sp. Gum Tree 9? 14? ~.400 good good mature 4.800 2.250 40 + Tree located in backyard viewed from distance; Retain 383434.5152 6453314.96
Veg 785Eucalyptus camaldulensis var. camaldulensis River Red Gum 11 8 0.4 good good mature
4.800 2.25210 to 40 previous branch failure; rubbing and crossing stems noted Retain 383421.54 6453294.293
Veg 786 Ficus elastica Indian Rubber Tree 11 15 0.8 good acceptable mature 9.600 3.013 40 + tree displays multi stem form, rubbing crossing stems, basal wounding noted Seek further Arboricultural advice 383406.9013 6453293.163Veg 787 Callistemon viminalis Weeping Bottlebrush 5 4 0.23 good acceptable mature 2.760 1.785 10 to 40 reasonable specimen Retain 383410.1514 6453285.166Veg 788 Eucalyptus erythrocorys Illyarrie 7 6 0.27 good acceptable mature 3.240 1.910 10 to 40 tree displays leggy form, reasonable specimen Retain 383397.7112 6453294.213
Veg 805Eucalyptus camaldulensis var. obtusa Northern River Red Gum 8 10 0.3 good acceptable mature
3.600 1.99640 + tree on lean, tree displays leggy form Retain 383346.5675 6453479.801
Veg 806Eucalyptus camaldulensis var. obtusa Northern River Red Gum 10 8 0.27 acceptable acceptable mature
3.240 1.91040 + canopy slightly sparse, tree displays leggy form Retain 383347.604 6453483.981
Veg 807Eucalyptus camaldulensis var. obtusa Northern River Red Gum 11 11 0.6 acceptable acceptable mature
7.200 2.67040 + tree displays leggy form, bark inclusion at ground level, canopy slightly sparse Retain 383354.2416 6453491.015
Veg 808Eucalyptus camaldulensis var. obtusa Northern River Red Gum 8 11 0.35 acceptable questionable mature
4.200 2.12940 + tree displays leggy form, branch failures noted; canopy slightly sparse Seek further Arboricultural advice 383349.8303 6453496.957
Veg 809Eucalyptus camaldulensis var. camaldulensis River Red Gum 9 7 0.32 acceptable acceptable mature
3.840 2.05140 + tree displays leggy form, tree on lean Retain 383352.8564 6453507.989
Veg 810Eucalyptus camaldulensis var. camaldulensis River Red Gum 6 5 0.21 good acceptable mature
2.520 1.71840 + tree displays slightly leggy form Retain 383345.8288 6453588.213
Veg 811 Eucalyptus leucoxylon South Australian Yellow Gum 6 9 0.51 good good mature6.120 2.494
10 to 40 canopy suppression; good specimen Retain 384197.2353 6453266.348
Veg 812 Eucalyptus leucoxylon South Australian Yellow Gum 4 8 0.41 good acceptable mature4.920 2.276
10 to 40 bifurcates at ~800mm, canopy suppression noted Retain 384196.0306 6453272.447
Veg 813 Eucalyptus leucoxylon South Australian Yellow Gum 6 7 0.4 acceptable acceptable mature4.800 2.252
10 to 40 tree displays multi stem form; stand of x4, leader growing through fence Retain 384196.9479 6453269.591
Veg 814 Eucalyptus leucoxylon South Australian Yellow Gum 3 3 0.18 acceptable acceptable semi mature2.160 1.611
10 to 40 canopy suppression noted Retain 384195.6226 6453274.704Veg 815 Eucalyptus platypus Round - leaved Moort 4 7 0.4 good acceptable mature 4.800 2.252 10 to 40 bifurcates at ~300mm, reasonable specimen Retain 384181.7866 6453276.825Veg 816 Pinus pinaster Maritime Pine 8 4 0.3 questionable questionable mature 3.600 1.996 <5 canopy indicates decline, dead wood noted throughout canopy Seek further Arboricultural advice 384166.7665 6453280.324
Veg 817 Eucalyptus platypus Round - leaved Moort 3 to 4 4 to 5 .100 to .250 good good semi mature2m to 3m 1.5m to
1.85m 10 to 40 reasonable stand of x7 E. platypus , previous branch failures Retain 384123.0044 6453273.968
This report shall not be reproduced except in its entirety, without prior written approval of Arbor Centre PTY LTD
Page 14 of 16
APPENDIX B:- Table of Results Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)
Tree Survey July 2018
Veg 818 Eucalyptus platypus Round - leaved Moort 3 4 0.25 good acceptable semi mature 3.000 1.849 10 to 40 reasonable stand of x2 E. platypus Retain 384130.3907 6453277.239
Veg 819 Various Native SpeciesGum Trees, Paper barks and Rottnest Island Pine Trees 2 to 5 2 to 5 .100 to .250 good to acceptabgood to acceptabl mature
2m to 3m 1.5 to 1.85m10 to 40 Verge of Stirling highway stand of native planting Retain 383308.4784 6453538.933
Veg 820 Eucalyptus erythrocorys Illyarrie 5 n 0.3 good questionable mature 3.600 1.996 10 to 40 Previous branch failures, tree displays leggy form, Retain 383306.0431 6453305.493
Veg 821 Various Native SpeciesPaper Barks, Bottlebrushes and One- sided Bottlebrushes 2 to 3 2 to 4 .100 to .200 good acceptable mature
2m to 2.4m 1.5m to 1.68m
10 to 40 Stand of various natives at corner of Stirling highway Retain 383303.1834 6453297.763Veg 822 Jacaranda mimosifolia Jacaranda 6 6 0.27 good acceptable mature 3.240 1.910 40 + bifurcates at ~200mm, rubbing crossing stems noted within canopy Retain 384533.9629 6453367.972
Veg 823 Corymbia ficifoliaWest Autralian Red Flowering Gum 3 3 0.12 good good semi mature
10 to 40evidence of bark chew to form hollow at ~4 m, previous branch failures, included unions, damage to surface roots, Retain 383199.994 6453516.086
10 to 40evidence of bark chew at 2 unions @ ~5 m and ~6 m high, previous branch failures, included unions, damage to surface roots, tree displays leggy form Retain 383192.5468 6453516.359
Veg 884 Eucalyptus leucoxylon South Australian Yellow Gum 6 5 0.18 acceptable acceptable semi mature2.160 1.611
10 to 40 canopy sparse, canopy suppression, tree displays leggy form Retain 383182.5638 6453517.494
Veg 885 Eucalyptus botryoides Southern Mahogany 16 17 0.67 good good mature8.040 2.797
10 to 40damage to surface roots, tree displays leggy form, reasonable specimen, girdling root noted at base of trunk Retain 383173.4155 6453515.552
10.800 3.16640 + dead wood, multi stem form, canopy suppression noted Retain 383238.6454 6453393.497
Veg 908Eucalyptus camaldulensis var. camaldulensis River Red Gum 13 20 0.76 good good mature
9.120 2.94940 + good specimen Retain 383241.8394 6453394.934
Veg 909 Callistemon viminalis Weeping Bottlebrush 2 2 0.8 good good semi mature 9.600 3.013 10 to 40 reasonable specimen Retain 383248.4092 6453397.197Veg 910 Callistemon viminalis Weeping Bottlebrush 4 5 0.24 good acceptable mature 2.880 1.817 10 to 40 reasonable specimen Retain 383249.6289 6453394.582Veg 911 Lophostemon confertus Queensland Box 6 8 0.38 good acceptable mature 4.560 2.204 10 to 40 reasonable specimen Retain 383263.0804 6453395.917Veg 912 Acacia sp. Wattle Species 3 4 0.2 good acceptable mature 2.400 1.683 5 to 10 tree on lean, dead tree at base Retain 383303.3721 6453245.289Veg 913 Citharexylem spinosum Fiddlewood Tree 7 4 0.7 good acceptable mature 8.400 2.849 10 to 40 reasonable specimen, part of stand of 3 Retain 383318.7698 6453247.264Veg 914 Citharexylem spinosum Fiddlewood Tree 7 5 0.32 good acceptable mature 3.840 2.051 10 to 40 canopy suppression, part of stand of 3 Retain 383319.0441 6453249.851Veg 915 Citharexylem spinosum Fiddlewood Tree 7 6 0.5 good acceptable mature 6.000 2.474 10 to 40 canopy suppression, part of stand of 3 Retain 383319.1237 6453253.697Veg 916 Callistemon viminalis Weeping Bottlebrush 5 4 0.2 good good mature 2.400 1.683 10 to 40 previous branch failures, reasonable specimen Retain 383315.6077 6453255.881Veg 917 Olea europaea European Olive 4 5 0.22 good good semi mature 2.640 1.752 40 + canopy slightly sparse, otherwise good specimen Retain 383235.3565 6453259.402
Veg 918 Corymbia ficifoliaWest Autralian Red Flowering Gum 2 2 0.15 good good semi mature
Examples of Previous and Successful Tree Retention Projects July 2018
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Project:- Remnant Eucalyptus gomphocephala’s (Tuart) at Pine Grove Vista & Pebble Springs Road in Meadow Springs Date:- 1980’s and early 1990’s Descriptions:- Road construction was designed in collaboration with Ertech and Arbor Centre as part of the estates civil / road construction in the late 1980’s / early 1990’s . Similar road construction detail was also utilised for trees along Pebble Springs Rd (within the same development site). The subject Tuarts remain in good condition approximately 25 years post road construction.
Project:- The Historic Cloisters Fig (Ficus rubiginosa – Port Jackson Fig) Located at 200 St Georges Terrace in Perth. Date:- 2012 -2015 Descriptions:- Refurbishment of the areas within the AS4970 Tree Protection Zone (TPZ), Works included aerial and below ground inspections of the tree, Development of site and tree specific protection specifications that allowed modification of the AS4970 TPZ, Supervision of works carried out by contractors within the specified TPZ, Undertaking remedial works to offset impacts, ongoing monitoring and progress reporting.
Pebble Springs Road 2017 (approximately 25 years post road construction) Pine Grove Vista 2017 (approximately 25 years post road construction)
Examples of Previous and Successful Tree Retention Projects July 2018
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Project:- Hale School Eucalyptus gomphocephala (Tuart) Rootzone assessment and remediation. Date:- 2011 Descriptions:- Car park construction introduced approximately 1m of fill and hardstand immediately around tree trunk (refer images). More than 50% of the tree’s root system has been impacted by building and carpark construction. Fill Profile consists of 800mm – 900mm of compacted layers of poorly graded sands beneath a 300mm depth of typical hardstand construction of compacted road base with bitumen surfacing. The areas was remediated by Arbor Centre via the installation of aggrigate and geotextile to aid drainage and keep the bark area from excessive inundation.
Project:- Hilroy Road Coolbellup Eucalyptus gomphocephala (Tuart) Date:- 2011 -2014 Descriptions:- Development of previous school site in Coolbellup. Design inputs, reporting & site remediation for the retention of a mature reminant Tuart. From open ground (within an old school site) to a 12m urban corridor of hardstand and garden beds. Root zone remediation works undertaken by Arbor Centre included coring, soil amendments and irrigation.
Before After
Examples of Previous and Successful Tree Retention Projects July 2018
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Project:- Curtin University – Main Street Upgrade & Bus Interchange – Tree Retention Date:- 2015 - present Descriptions:- Works within the AS4970 Tree Protection Zones (TPZ) included road construction, road resurfacing, installation of below ground services & footpaths, & re-landscaping of the site. Works included below ground inspections of the trees, Development of site and tree specific protection specifications that allowed modification of the AS4970 TPZs, Supervision of works carried out by contractors within the specified TPZ, Undertaking remedial works to offset impacts, ongoing monitoring and progress reporting. Project:- The Springs – Arbor North Retention of Ficus virens (White Fig) Date:- 2013 - 2016 Descriptions:- Works within the AS4970 Tree Protection Zone (TPZ) included construction of retaing wall, installation of below ground services & decking, & landscaping. Works included aerial and below ground inspections, Development of tree protection specifications that allowed modification of the AS4970 TPZ, Supervision of works carried out by contractors within the specified TPZ, Undertaking remedial works (rootzone coring, mulching, composting, temporary irrigating, installation of moisture sensors & canopy pruning in keeping with AS 4373 ‘Pruning of Amenity Trees’ 2007) to offset impacts, regular monitoring and progress reporting undertaken during and upon completion of construction.
Before After
Examples of Previous and Successful Tree Retention Projects July 2018
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Project:- Retention of Mature Eucalyptus rudis (Flooded Gum) and Eucalyptus camaldulensis var. camaldulensis (River Red Gum) at the Bassendean Village Shopping Centre Redevelopment. Date:- 2013 -2015 Descriptions:- Works within the AS4970 Tree Protection Zones (TPZ) included road construction, road resurfacing, installation of below ground services & footpaths, & re-landscaping of the site. Arboricultural inputs included below ground inspections and soil profiling, arboricultural advice and guidance surrounding contractor works and their methodologies, Arboricultural supervision of works carried out by contractors within the specified TPZs, Undertaking remedial works (rootzone coring, mulching, composting, irrigating & canopy pruning in keeping with AS 4373 ‘Pruning of Amenity Trees’ 2007) to offset impacts, regular monitoring and monthly progress reporting.
Project:- Old Northlake Primary School - Preservation of stand of Ficus microcarpa var. hillii (Weeping Hills Fig) Date:- 2014 - 2015 Descriptions:- Works within the AS4970 Tree Protection Zones (TPZ) included road construction, installation of below ground services & footpaths, & re-landscaping of the site. Arboricultural inputs included below ground inspections and soil profiling, arboricultural advice and guidance surrounding contractor works and their methodologies, Arboricultural supervision of works carried out by contractors within the specified TPZs, regular monitoring and monthly progress reporting.
During After
During After
Examples of Previous and Successful Tree Retention Projects July 2018
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Other Previous Arbor Centre Projects include (but are not limited to)
• Arboricultural inspection and preservation inputs for the mature trees located adjacent the eastern landing of the Matagarup Bridge in East Perth.
• Arboricultural inspection and preservation inputs for the mature trees located within Newman Court in Fremantle as part of the Kings Square redevelopment project.
• Arboricultural inspection and preservation inputs for the mature trees located within the proposed University of Western Australia SIS construction project.
• Arboricultural inspection and preservation inputs for the 2x mature Ficus microcarpa var. hillii (Weeping Hills Fig) located adjacent the City of Belmont Civic Centre construction.
• Arboricultural inspection and preservation inputs for the trees recommended for retention into the Calista Adventure Playground in Calista.
• Arboricultural inspection and preservation inputs for the mature trees located adjacent the proposed re-development of the Equinox Café in Busselton.
If you require any further detail or discussion regarding the implementation and outcomes of the above projects, please contact me on phone 9359 9300. Kind regards,
Luke Lumbus – Arboricultural Consultant Grad. Cert. Arb (Hons) Melb. Uni. Dip.Arboriculture ISA Arb. (AU-0014A) QTRA Lic.No:1935 DISCLAIMER: Any arboricultural advice contained herein has been provided in good faith and based upon the material information available, provided, and pertinent at the time the advice was given. Arbor Centre will not accept liability arising out of loss or damage that results from:- • Pertinent information not being available or withheld at the time this advice was provided; • The provision of misleading or incorrect information to Arbor Centre upon which this advice was founded; • The uses of this advice in circumstances or situations other than the specific subject of this advice; • Failure by the Client to follow this advice; • The action(s) or inaction(s) of the Client or any other party that gives rise to loss or damage to the subject of this advice; • The information provided may not be reissued or printed without the authors permission. COMPANY DETAILS: Arbor Centre PTY LTD (ACN 009 375 311 ~ ABN 97 848 490 214) 731 Welshpool Road East, Wattle Grove 6107 ~ PO Box 23, Forrestfield 6058 Phone:- (08) 9359 9300 ~ [email protected] ~ www.arborcentre.com.au
Leach Highway H012 - High Street Upgrade – Stirling Highway (0.03 SLK) to Carrington Street (1.49 SLK)– July 2018
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If you have any queries or if I can be of further assistance, don’t hesitate to contact Charlie or I on Office number: - (08) 9359 9300.
Kind regards,
Luke Lumbus – Arboricultural Consultant Grad. Cert. Arb (Hons) Melb. Uni. Dip.Arboriculture ISA Arb. (AU-0014A) QTRA Lic.No:1935
DISCLAIMER: Any arboricultural advice contained herein has been provided in good faith and based upon the material information available, provided, and pertinent at the time the advice was given. Arbor Centre will not accept liability arising out of loss or damage that results from:- • Pertinent information not being available or withheld at the time this advice was provided; • The provision of misleading or incorrect information to Arbor Centre upon which this advice was founded; • The uses of this advice in circumstances or situations other than the specific subject of this advice; • Failure by the Client to follow this advice; • The action(s) or inaction(s) of the Client or any other party that gives rise to loss or damage to the subject of this advice; • The information provided may not be reissued or printed without the authors permission.
COMPANY DETAILS: Arbor Centre PTY LTD (ACN 009 375 311 ~ ABN 97 848 490 214) 731 Welshpool Road East, Wattle Grove 6107 ~ PO Box 23, Forrestfield 6058 Phone: - (08) 9359 9300 ~ [email protected] ~ www.arborcentre.com.au