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Reference Document MCU24-0105, OPW24-0119 & RAL24-0016 (As Published)
REFERENCE DOCUMENT
MCU24/0105, OPW24/0119 &
A RAL24/0016
NOOSA COUNCIL
17 JANUARY 2025
Australian Tree Contractors
& Arboricultural Consultants
P O Box 1411, Noosaville DC Qld 4566
W: www.australianconsultarborist.com.au
Managing Trees in The Urban Environment
Arborist Assessment
Kidd + Co Designers
Lot4RP91287 3 Werin St
Tewantin
Consult Arborist : Kurt Brown DIP Arb ,
ISA TRAQ Certified
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN Inspecting Arborist: Kurt Brown DIP Arb, ISA TRAQ Certified, Level 3 Arb Time Period: 2 Years Client: Kidd + Co Designers Site: Lot 4RP91287 3 Werin St Tewantin Date of Inspection: 17/10/24 Table of Contents 1. Professional Disclaimer 2. Qualifications 3. Scope Of Works 4. Method of Inspection 5. Site Map 6. Arboricultural Overview
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN Professional Disclaimer: All trees are inspected on a basic level and ground based and should a higher level of inspection be required this will be identified and required to complete a mitigation response on individual trees. All trees are assessed on “normal weather conditions “and weather event outside this will be deemed an abnormal weather event and as this assessment results a higher level of risk than the initial assessment due to forces applied. After any weather event where there have been severe forces applied to the assessed trees, we strongly recommend a reinspection to keep your report current as this report prior to any event will be deemed defuncted until reinspected. Although Australian Tree Contractors & Arboricultural Consultants PTY Ltd (I 614 266 125) (ATCAC) use all due care and skill in providing you with the information made available in this Report, to the extent permitted by law ATCAC otherwise excludes all warranties of any kind, either expressed or implied. To the extent permitted by law, you agree that ATCAC is not liable to you or any other person or entity for any loss or damage caused or alleged to have been caused (including loss or damage resulting from negligence), either directly or indirectly, by your use of the information (including by way of example, Arboricultural advice) made available to you in this report. Without limiting this disclaimer, in no event will ATCAC be liable to you for any lost revenue or profits, or for special, indirect, consequential, or incidental damage (however caused and regardless of the theory of liability) arising out of or related to your use of that information, even if Tree Logic has been advised of the possibility of such loss or damage. This disclaimer is governed by the law in force in the State of Queensland, Australia. This Report is addressed to you and may not be distributed to, or used or relied on by, another person without the prior written consent of ATCAC. ATCAC accepts no liability to any other person, entity, or organisation with respect to the content of this Report unless that person, entity or organisation has first agreed in writing to the terms upon which this Report may be relied on by that other person, entity, or organisation. Report Assumptions The following qualifications and assumptions apply to the Report: • Any legal description provided to ATCAC is assumed to be correct. Any titles and ownership of any property are assumed to be correct. No responsibility is assumed for matters outside of ATCAC’s control. • ATCAC assumes that any property or project is not in violation of any applicable codes, ordinances, statutes or other local, state, or federal government regulations. • ATCAC shall take care to obtain all information from reliable sources. All data shall be verified as far as possible; however, ATCAC can neither guarantee nor be responsible for the accuracy of the information provided by others not directly under ATCAC’s control. • No ATCAC employee or contractor shall be required to give testimony or to attend court because of the Report unless subpoenaed or subsequent contractual arrangements are made, including payment of an additional fee for such services. • Loss of the report or alteration of any part of the report not undertaken
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN by ATCAC invalidates the entire Report and shall not be relied upon by any party. • The Report and any values expressed therein represent the opinion of ATCAC’s consultant and ATCAC’s fee is in no way conditional upon the reporting of a specified value, a stipulated result, the occurrence of a subsequent event, nor upon any finding to be reported. • Sketches, diagrams, graphs, and photographs used in the Report, is intended as visual aids, are not necessarily to scale and should not be construed as engineering or architectural drawings, reports, or surveys. • Unless expressed otherwise: I) The information contained in the Report will cover those items that were outlined in the project brief or that were examined during the assessment and reflect the condition of those items at the time of inspection; and ii) The inspection is limited to a visual examination of accessible components without dissection, excavation or probing unless otherwise stipulated. • There is no warranty or guarantee, expressed or implied by ATCAC, that the problems or deficiencies of the plants or site in question may not arise in the future. • All instructions (verbal or written) that define the scope of the Report have been included in the Report and all documents and other materials that the ATCAC Consultant has been instructed to consider or to consider in preparing the Report have been included or listed within the Report. • The Report is limited to the matters stated in it and does not apply by implication to any other matters. • To the writer’s knowledge all facts, matter, and all assumptions upon which the Report proceeds have been stated within the body of the report and all opinion contained within the report will be fully researched and referenced and any such opinion not duly researched is based upon the writer’s experience and observations. General References • Australian Standards AS 4373 – 2007 Pruning of amenity trees. • AS 4970-2009 – Protection of trees on development sites • Wild Plants of Greater Brisbane – Queensland Museum • Fraser Coast website and Maps/overlays • Evaluating Tree Defects – A Field Guide by Ed Hayes, Second Edition • Body Language of Trees – Research for Amenity Trees, Claus Mattheck • Smiley E. Thomas, Nelda Matheny, and Sharon Lilly April 2012. Tree Risk Assessment: Levels of Assessment • Matheny Nelda and Jim Clark Feb 2009. Tree Risk Assessment: What we know (and What We Do Not Know) • The use of the TRAQ as trained by the International Society of Arboriculture
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Qualifications:
Our Consulting Arborist is Kurt Brown, and he has over 30 years in field experience ranging the breadth of Australia and New Zealand, both as a consultant
and as a AQF Level 3 Climbing Arborist and as such brings a more rounded and unique perspective to his inspections. This is evident in the inspections and
data collection and how this is translated into the report format and recommendations.
Kurt also has attained the highest of the relevant qualifications for inspecting trees from all aspects relating to asset and people protection and tree health
and structure and much more.
Qualifications are as follows.
1. AQF Level 3 Arboriculture SCIT
2. AQF Level 5 Arboriculture TAFE East Coast
3. ISA TRAQ Certified Arborist
Other Relevant Information,
1. Queensland Arboricultural Association Qualified Member 2018 – Current
2. Arboriculture Australia Member
3. Queensland Arboricultural Association Executive Member 2012 to 2017
4. President Queensland Arboricultural Association 2014 to 2016
5. Past President Queensland Arboricultural Association 2017
6. Arboricultural Australia Member 2014 to current
7. International Society of Arboriculture Member 2014 to current
Scope Of Works
To assess the trees and provide
1. Tree species
2. Canopy height and canopy width
3. SRZ structural root system
4. DBH
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
5. Condition and Any Tree Requirement’s Prior to and During Construction
Method of Inspection
Kurt Brown employs a relevant section of multiple quantified modalities in his inspections, these are Matthecks VTA (Visual Tree Assessment and ISA
TRAQ Assessment. In this instance we are purely employing the VTA method.
Tree Assessment and Site Map
.
Tree # 1
Species Delonix regia
Common name Poinciana
DBH (cm) 105
Height (m) 4
Spread (m) 10
Structure Fair / good
Health Fair
Age Semi-mature / mature
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Amenity value High
Defects Excavation of more than
10% of TPZ.
Excavation/works near
tree, large roots cut.
Recent works within root
zone. Structure recently
built within TPZ. Included
bark union/s. Multiple
leaders. Some epicormic
growth. History of limb
failures. Minor deadwood.
Major deadwood. Poor
pruning / lopping in the
past
Risk rating Low
Priority Low
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Notes Excavation of more than 10% of TPZ. Excavation/works near tree, large roots cut. Recent
works within root zone. Structure recently built within TPZ. Included bark union/s. Multiple
leaders. Some epicormic growth. History of limb failures. Minor deadwood. Major
deadwood. Poor pruning / lopping in the past
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Recommendations deadwood removal. tip prune limbs over higher use areas. Epicormic management pruning;
remove smaller congested shoots and reduce larger shoots that are to be retained. crown
lift
.
Tree # 2
Species Delonix regia
Common name Poinciana
DBH (cm) 98
Height (m) 4
Spread (m) 13
Structure Fair / good
Health Fair
Age Mature
Amenity value High
Defects Dead wood, bifurcated
union some poor
attachment concerns but
typical for the species
Risk rating Low
Priority
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN Notes
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Recommendations Prior This tree will require minor encroachment pruning works prior to any physical works on
to Demolition and site and then a clear tree protection
Constructions Works
.
.
TREE SPECIES DBH HEIGHT SPREAD STRUCTURE HEALTH AGE AMENITY RISK
# (CM) (M) (M) VALUE RATING
1 Delonix 105 4 10 Fair / good Fair Semi- High Low
regia mature /
mature
Notes: Excavation of more than 10% of TPZ. Excavation/works near tree, large roots cut. Recent works within
root zone. Structure recently built within TPZ. Included bark union/s. Multiple leaders. Some epicormic growth.
History of limb failures. Minor deadwood. Major deadwood. Poor pruning / lopping in the past
Defects: Excavation of more than 10% of TPZ. Excavation/works near tree, large roots cut. Recent works within
root zone. Structure recently built within TPZ. Included bark union/s. Multiple leaders. Some epicormic growth.
History of limb failures. Minor deadwood. Major deadwood. Poor pruning / lopping in the past
Recommendations: deadwood removal. tip prune limbs over higher use areas. Epicormic management
pruning; remove smaller congested shoots and reduce larger shoots that are to be retained. crown lift
2 Delonix 98 4 13 Fair / good Fair Mature High Low
regia
Notes: Excavation of more than 10% of TPZ. Excavation/works near tree, large roots cut. Recent works within
root zone. Structure recently built within TPZ. Included bark union/s. Multiple leaders. Some epicormic growth.
History of limb failures. Minor deadwood. Major deadwood. Poor pruning / lopping in the past
Defects: Excavation of more than 10% of TPZ. Excavation/works near tree, large roots cut. Recent works
within root zone. Structure recently built within TPZ. Included bark union/s. Multiple leaders. Some epicormic
growth. History of limb failures. Minor deadwood. Major deadwood. Poor pruning / lopping in the past
Recommendations: deadwood removal. tip prune limbs over higher use areas. Epicormic management
pruning; remove smaller congested shoots and reduce larger shoots that are to be retained. crown lift
3.4. Site Plan
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN (Not to scale, for indicative purposes only)
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Tree Species Common DBH Height Spread Structure Health Age ULE Amenity TPZ DTW
# name (cm) (m) (m) (yrs.) value (m) (m)
1 Delonix Poinciana 105 4 10 Fair / Fair Semi- 15 to High 12.6 174
regia good mature / 40
mature
2 Delonix Poinciana 98 4 13 Fair / Fair Mature 15 to High 11.8 165
regia good 40
Recommendations:
Tree 1 - deadwood removal. tip prune limbs over higher use areas. Epicormic management
pruning; remove smaller congested shoots and reduce larger shoots that are to be
retained. crown lift
Tree 2 - deadwood removal. tip prune limbs over higher use areas. Epicormic management
pruning; remove smaller congested shoots and reduce larger shoots that are to be
retained. crown lift
Appendix 1: Photographs
Select Items Per row: 2 Images Per Row
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Tree 1 Tree 2
Appendix 2: Glossary
Age Category: The age of the tree is represented as Juvenile, Semi-mature, Mature or Senescent.
Juvenile: A young tree, given normal environmental conditions for that tree it will not yet flower or fruit.
Semi-mature: Able to reproduce but not yet nearly the size of a mature specimen in that location.
Mature: Has reached or nearly reached full size and spread for that species in the given location.
Senescent: Old age: health and / or structure is being adversely impacted by the ageing process.
AMENITY VALUE A judgement of amenity and utility the tree provides - primarily based on the tree’s visual contribution to the
neighbourhood. Other contributing factors include species, size, age, health and ecological value. Amenity value does not consider
the degree of risk associated with a tree. Trees on neighbouring properties should be protected (unless otherwise negotiated with
the owner) regardless of the amenity value
CANOPY SPREAD Overall size of the canopy as looking from a plan view. Recorded at the widest point.
CO-DOMINANT STEMS Two stems of approximately the same thickness and height originating from the same position in the tree.
COMMON NAME A non-scientific name commonly used for that tree.
CROWN WIDTH See ‘Canopy spread’
DBH The diameter of the trunk measured at or near 1.4m above ground level. Where there is more than 1 stem originating below 1.4m
(Diameter at Breast Height) the measurement recorded is calculated as described in AS 4970-2009 for multi-stemmed trees.
DEAD Cessation of all metabolic processes (or very soon to be)
DEFECT An imperfection, weakness, or lack of something necessary. In trees, defects are injuries, growth patterns, decay, or other
conditions that reduce the tree's structural strength.
DTW The distance (in metres) from the proposed works to the centre of the trunk at the base of the tree.
(DISTANCE TO WORKS)
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
FORM Reference to the symmetry of the crown as observed from all angles and in accordance with the morphology of that species, and
documented as Poor, Fair or Good.
HEALTH A trees vigour as exhibited by the crown density, leaf colour, seasonal extension growth, presence of stress indicators, ability to
withstand diseases and pests, and the degree of dieback. Where a deciduous tree is inspected without foliage and health is
undetermined ‘?’ will be recorded.
Dead: Cessation or near cessation of all metabolic processes
Poor: Indicating symptoms of extreme stress such as minimal foliage, or extensively damaged leaves from pests and/or diseases. Death
probable if tree deteriorates further.
Fair: Not nearly of ‘Good’ condition (see below)
Good: Usual for that species given normal environmental conditions – full canopy with only minor deadwood, normal leaf size and
extension growth, minor pest or disease damage
Excellent: Better than usual for that species under normal conditions
HEIGHT The distance in metres from the ground to the highest point in the crown, calculated in the vertical plane. This measurement unless
otherwise specified is estimated.
INCLUDED BARK UNION A union within a tree that has included bark (bark pressing on bark), these unions are more likely to fail as the included bark is
equivalent to a split. Often characterized by an acute angle and sometimes forming ribs or flaring immediately below the union
where the tree reacts to the weakness by placing secondary growth. Though these unions are weaker than a ‘good ‘union, the risk
of failure cannot be calculated, and failure is not certain.
LOPPING / TOPPING The removal of parts of a tree giving no consideration to the trees natural defence systems.
PRUNING Systematic removal of branches from a plant whilst considering the trees natural defence systems.
REFERENCE Unique identifier assigned to an individual report by the author
RETENTION VALUE Relates to a combination of factors including condition, location, amenity and ULE
Nil: Tree would be expected to die or fail soon or is of very high risk or a significant weed
Low: Easily replaced or may become problematic if retained given the location and species
Moderate: An asset to the area, retention is desirable, of fair to good condition, not easily replaced
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
High: Prominent or valued tree with high amenity and low risk.
(Trees on neighbouring properties are assigned a 'High' retention value and should be protected regardless of amenity value)
RISK The combination of the likelihood of an event and the severity of the potential consequences.
STRUCTURAL ROOT ZONE (SRZ) The area around the base of a tree required for the tree’s stability in the ground. The woody root growth and soil cohesion in this
area are necessary to hold the tree upright. The SRZ is nominally circular with the trunk at its centre and is expressed by its radius in
metres. This zone considers a tree’s structural stability only, this is different from the root zone required for a tree’s vigour and long-
term viability, which will usually be a much larger area (see TPZ).
STRUCTURE Reference to the structural integrity of the tree with consideration of the crown, trunk and roots. Determined using the Visual Tree
Assessment (VTA) method (Matheck and Breloer 1994). The failure of small (<60mm calliper) live or dead limbs is normal and not
considered here.
Very poor: Clear indications that a significant failure is likely soon
Poor: Signs of structural weakness obvious and failure likely, one might expect a significant failure event within the next 5 years, possibly
tomorrow
Fair: Signs of weakness present though not obviously significant, likely to become worse over time
Good: No obvious signs of structural weakness
TREE NUMBER Identifying number allocated to individual trees or groups of trees, used to locate trees using site plans or tags on trees.
TREE PROTECTION ZONE (TPZ) An exclusion / protection area measured at ground level nominally circular with the trunk at its centre, expressed by its radius in
metres.
The TPZ allows for protection of canopy and roots; both the structural roots that give the tree stability and the smaller absorption
roots. The radius of the TPZ is normally calculated for each tree by multiplying the DBH × 12. The minimum distance will be 2m and
maximum 15 as stipulated in the Australian Standard 4970-2009 – Protection of trees on development sites.
REFERENCE Unique identifier assigned to an individual report by the Author
ULE Useful Life Expectancy is an estimation of how many years a tree can reasonably be retained in the landscape provided growing
conditions do not significantly worsen and any recommended works are completed. It takes into consideration factors such as risk,
species, age, health and site conditions.
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ARBORIST INSPECTION 3 WERIN ST TEWANTIN
Arboricultural Recommendation
Prior to and development changes to the property we would need to establish a tree protection barrier as per AS4970-2009 with all appropriate signage as
outlined in the standard. Any demolition or construction that conflicts with the tree TPZ or SRZ the project arborist will, and designer must design an
appropriate modification that ensures tree protection and health and structural integrity.
All tree protection conditions will be part of a prestart sign off for all contractors on this project
Kind regards
Kurt Brown DIP Arb SCIT ISA TRAQ Certified
Australian Tree Contractors & Arboricultural Consultants PTY Ltd
E: [email protected]