Question 1

What is a QTRA tree risk assessment?

Accepted Answer

QTRA (Quantified Tree Risk Assessment) is an internationally recognised methodology that produces a specific probability of failure per tree — a number, not an opinion. It multiplies probability of failure, probability of occupancy and consequence of failure to give a figure that maps directly to any standard risk matrix.

Question 2

Does the WHS Act require a tree risk assessment?

Accepted Answer

Under Section 19 of the Work Health and Safety Act 2011 (Qld), a PCBU must manage foreseeable hazards in the workplace, including trees over outdoor areas used by workers or visitors. A QTRA assessment provides the documented evidence of due diligence required under the Act.

Question 3

What is a pre-burn hazard tree assessment?

Accepted Answer

A pre-burn hazard tree assessment identifies every tree in a prescribed burn operational area that presents a structural risk to crew, maps firefighter exclusion zones, and produces a written hazard register for inclusion in the burn plan. Tree Risk QTRA is the only operator on the Sunshine Coast combining QTRA-certified forester credentials with fire sector command experience.

Question 4

Where does Tree Risk QTRA operate?

Accepted Answer

Tree Risk QTRA provides assessments across the Sunshine Coast, Noosa, Gympie, the Noosa Hinterland, Blackall Range and surrounding regions of South-East Queensland. Contact Jonathan on 0475 811 501.

All articles

Sample Assessment Reports

WHS Tree Risk Register

Pre-burn Hazard Assessment

Post-fire Re-entry Assessment

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