26_04_27_AIA_JLTP_12-14 Gympie St

7     S UMMARY T REE P ROTECTION P ROCEDURES
To guide future design changes where works are required adjacent to the tree, the following
Summary Tree Protection Procedures are offered. These are guided by AS 4970:2025
Protection of trees on development sites, and a full Tree Protection Management Plan can be
produced if required. Definitions from AS4970 are available in Appendix 1.

Trees should be protected from damage with temporary fencing as guided by AS 4970 and
any Arborist report. Temporary fencing should be erected at the boundary of the TPZ or
Exclusion Zone marked areas as appropriate and should be installed before works commence,
including demolition.

All works within a designated TPZ of retained vegetation must be supervised by the Project
Arborist (AQF Level 5).

Take all necessary precautions, including but not limited to the following:

•   Appropriate signage, i.e., ‘Tree Protection Zone’ and ‘No Go Zone’, must be erected at
    the boundary of the TPZ to prevent vehicles from entering and prevent stockpiling from
    occurring near retained trees/vegetation.
•   No damage to be caused to tree trunks and bark (i.e., do not attach guides or stays to
    trees/vegetation).
•   If useful, exploratory root investigations can be undertaken with a hydro-vac excavator or
    as specified and supervised by the Project Arborist.
•   No excavation works/open trenching to encroach within the TPZ of retained trees unless
    under the direct supervision of the Project Arborist.
•   Approved excavation works should be undertaken with the machines sat on protected or
    solid ground away from the tree, and work performed perpendicular to the tree.
•   Where necessary to cut roots, this shall be undertaken by the Project Arborist.
•   No storage or otherwise placing of spoil, bulk or potentially harmful materials (i.e.,
    construction refuse, concrete waste, herbicides, diesel, etc.) under or within 1m of TPZs.
•   Avoid ground compaction under trees. If compaction occurs (i.e., from site access or the
    location of a construction plant or vehicle parking), notify the Project Arborist and obtain
    their instructions.
•   Ground Protection: Where construction encroaches into the TPZ of trees to be retained,
    it shall be necessary to install protection to avoid compaction of the ground surface, lateral
    and absorbing roots.
•   Any damage to trees during work is to be rectified according to AS 4373/96 Pruning of
    Amenity Trees and best horticultural practices. The Project Arborist is to guide the works.
•   Where deemed beneficial, mulch the entire ground surface within the TPZ with Forest
    Blend Organic Mulch or site mulch to a depth of 100mm.




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