ATCAC Arborist report

                    Australian Tree Contractors & Arboricultural Consultants Pty Ltd

P O Box 1411, Noosaville DC Queensland 4566.
Mobile: 0431586371
Email: [email protected]
Web: www.australianconsultarborist.com.au

Height 18m- Plus
Crown Width -10m plus
Slope of ground -32’
Soil Type – Sand
Observation
This Corkwood tree is growing on the side of a sandy based soil slope of approx. 32 degrees
and it has a major bias downhill. The crowns centre is approximately 8 to 10 metres from
the centre of its root plate (difficult to measure accurately due to topography and
structures).
There is the very poor taper of the truck to the root plate and reaction growth to the
increased load by this phototrophic growing tree, primarily no laying down of supporting
wood on either the tension or compression side.
The crown has a lot of epicormic growth present which I interpret to be a direct correlation
to the root system under severe load and stress.
As identified in the TRAQ assessment this tree is in the process of failure although not
necessarily immediately if left with no mitigation response to the issues identified this tree
will fail and as the targets also identified in he TRAQ assessment are all in the target zone
and the potential impact is very significant to both property and life.


Mitigation Options Identified in TRAQ Assessment
Option 1: Complete Removal
This is an absolute way to eliminate the risk and to protect all identified targets.
Option 2: End Weight Crown Reduction
This is an option but not a favourable one due to the minor pruning able to be done as per
AS 4373-2007 and the balancing act between helping and hindering. Also the loss of canopy
to aide with wind dampening. As with all pruning this will stress the tree and this tree is
already under load at present and these works will increase this stress and will not decrease
enough load off its root system to really help correct the imbalance this tree has at present.