Information
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Site
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Inspection date
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Tree location
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Prepared by
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Document Number
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Minimal tree inspection required (if yes do not fill out the Detailed Hazardous Tree Inspection part) Then sign last page.
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Describe what action is required or have undertaken.
Detailed Hazardous Tree Inspection
Tree Characterics
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Tree species
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Tree Form
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Crown class
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Age class
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Evidence of previous pruning history
Tree Health
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What is the general foliage colour
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Foliage density
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Tree Vigor
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Twig and branch dieback present
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Epicormic growth
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Woundwood development
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Major pests/diseases visible (includes fungal growth and or termite activity)
Site conditions
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Has the site any recent site disturbance
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Describe disturbance
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Pavement lifted (including bitumen, concrete and or gravel tracks roads)
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Percentage of tree dripline paved
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Exposure to winds
Target (where people, vehicles and or park assets are within the reach of the tree)
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Are there targets within 1.5 x height of tree
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Describe targets
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Can the target be moved
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Can use be restricted within the target area.
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Occupancy exposure time
Tree Defect within the Crown and Branches
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Unbalanced crown
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Over extended branches
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Cracks within branches
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Codominant branches
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Weak attachments
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Other areas of concern (fungal growth lightning strike etc)
Tree Defects on the Trunk
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Dead missing bark
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Codominant trunks
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Included bark
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Cracks
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Cankers / Galls / Burls
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Lean severity
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Other areas of concern (fungal growth lightning strike etc)
Tree Defects within the Roots and Root Collar
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Fungal growth present
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Dead or decaying roots
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Exposed cut or damaged roots
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Root plate lifting
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Soil weakness cracking
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Other areas of concern (undercutting of roots)
Hazard Rating
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Inspection period
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Tree part most likely to fail
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Failure potiential
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Size of tree or part likely to fail
Risk Calculators
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Determine the likelihood of a hazardous tree injuring a person/s, damaging vehicle/s and or park assets
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Determine the level of risk to persons, vehicles and or park assets.
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Risk rating matrix - Level of risk
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Hazard rating as per risk rating matrix
- Low 1
- Low 2
- Low 3
- Low 4
- Low 5
- Low 6
- Low 7
- Medium 8
- Medium 9
- Medium 10
- Medium11
- Medium 12
- Medium 14
- Medium 15
- Medium 16
- High 17
- High 18
- High 19
- High 20
- High 21
- High 22
- Extreme 23
- Extreme 24
- Extreme 25
Recommendations
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Further inspection by consultant arborist required
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Reason for consultant arborist to assist in the evaluation of the tree
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Do you recommend removing the tree
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Recommend replacing the tree
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Recommend moving target/s
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Comments
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Signature