We use independent arborists to check and assess trees for safety. When assessing trees, arborists consider the health of a tree, the strength of the tree's structure, and any other factors that may impact the tree's health.
A first inspection is typically a visual inspection made at ground level. An arborist will inspect the tree for visible defects, like cracks or rotten wood. Arborists will also consider the tree's structure, such as whether the tree is unbalanced due to limb loss. After this inspection, the arborist will typically make a recommendation regarding the tree's overall health, and whether any tree works are required to reduce public safety risks or improve the health of the tree.
Occasionally, arborists will identify further damage as works are completed on a tree. For example, the removal of a damaged limb may reveal previously unidentified rot in the tree's trunk, or the vantage point of a cherry picker may enable the arborist to see structural weaknesses not visible from the ground. In these instances, arborists will adjust the works they complete on the tree to account for this new information.
As trees are living structures, assessments of their health may also change over time. A healthy tree may rapidly deteriorate due to age or disease and require works sooner than initially identified.
You can click here(PDF, 2MB) to view an initial arborist's report for Victoria Park, taken in January 2022. While arborist's reports are dynamic and change as new information comes to light, this report will help you understand how an initial assessment considers the health of trees before works begin.
In all – trees are living structures that age, sicken and unfortunately die, and assessing a tree's health is a dynamic and changing practice. Our arborists only ever undertake tree works where necessary for a tree's health or safety, and an effective arboricultural program keeps our trees as healthy and safe as possible.