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Approval Plans OPW16-0203.01 pdf
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Log in to see the plans as drawnArboricultural Assessment Report v1 NCES REF: J000742
Proposed Footpath – Elm St, Cooroy (Palm Lakes)
Supervision: All works should be carried out by a qualified Arborist. Inspection of protection
measure to ensure they are kept in place.
Root Zone: Area protected from through protective fencing or exclusion zones.
Poor Form (PF): The tree has not grown true to typical species form. May present high risk of failure
through non-conforming branch angles or attachment.
Poor Trunk Taper: Trunk taper is an indicator of tree health and root growth.
TPZ: Tree protection zone to be established before construction commencing as per
AS4970
SRZ: Structural Root Zone as defined in AS4970
Sapling: Species up to 2 years
Juvenile: Between 2 and 5 years
Semi-Mature: Tree is still growing
Mature: Species has reached expected size and/or has begun to reproduce. Stable or near
stable biomass.
STRUCTURE
Excellent: Full Balanced crown, Great example specimen, Good foliage colour (true to species,
little or negligible pathogen damage.
Good: Full crown (may be slightly unbalanced), Good foliage colour (true to species), slight
pathogen presence.
Fair: Less than 30% deadwood, less than 80% foliage colour consistency through canopy,
minor pathogen damage present, inconsistent form for species, nutrient deficiencies
may be present.
Poor: Over 30% deadwood, Distorted and discoloured foliage present, stress symptoms
are present and may lead to the decline of the tree.
Dead: Tree possesses no living cells.
FORM
Excellent: Excellent branch attachment, no structural defects, sound trunk, good buttressing,
no root damage present to inspected depths.
Good: Good branch attachment, no major structural defects, Minor trunk damage only,
good buttressing, no root damage present at inspected depths.
Fair: Minor structural defects and/or damages, bark may be missing and cavities may be
present. May be minor damage to roots.
Poor: Major structural defects are present. May be problematic trunk angles, girdling roots,
root damage and branch attachments. Major cavities and decay may be causing
structural instability.
Hazardous: Tree poses immediate hazard potential and therefore remedial works should be
undertaken ASAP.
SIGNIFICANCE
High/Moderate/Low: A tree’s significance in the landscape. This may include but not be limited to visual
amenity, historic value, local and site perspective. The tree may be native or it may
also be native and endemic to the site. An exotic species such as a mature English
Oak in excellent health and condition may be classed as having a higher significance
than an over-mature native Forest Red Gum.
This category also applies to species that provide an amenity to streetscape or park
areas where their appreciated by a large number of people or have significant fauna
habitat value.
© 2020 16
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