BUSHFIRE HAZARD ASSESSMENT AND MANAGEMENT PLAN v2 - Coveys Road TINBEERWAH (1)

Bushfire Hazard Assessment and Management Plan v2                                             NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah


5     SPP BUSHFIRE RISK ASSESSMENT

5.1       General
A bushfire risk assessment for the site has been prepared generally in accordance with State
Planning Policy – State Interest Guideline – Natural Hazards, Risk and Resilience (DILGP, 2016)
and AS/NZS ISO 31000:2018 – Risk Management Methodology. The bushfire risk assessment
details the likelihood that the proposed new buildings will be exposed to bushfire smoke, ember,
radiant heat and/or flame attack considering the proximity to bushfire prone vegetation and likely
bushfire behaviour.
According to AS/NZS ISO 31000:2018, a ‘hazard’ is defined as a source of potential harm or a
situation with a potential to cause loss, whereas a ‘risk’ is the chance of something happening that
will have an impact on objectives measured in terms of consequences and likelihood. The State
Planning Policy – State Interest Guideline – Natural Hazards, Risk and Resilience (DILGP, April
2016) refers to ‘acceptable risk’, ‘tolerable risk’, and ‘intolerable risk’ which are defined below.
      •    Acceptable risk
              o     A risk that, following an understanding of the likelihood and consequences, is
                    sufficiently low to require no new treatments or actions to reduce risk further.
                    Individuals and society can live with this risk without feeling the necessity to reduce
                    the risks any further.
      •    Tolerable risk
              o     A risk that, following an understanding of the likelihood and consequences, is low
                    enough to allow the exposure to continue, and at the same time high enough to
                    require new treatments or actions to reduce risk. Society can live with this risk but
                    believe that as much as is reasonably practical should be done to reduce the risks
                    further.
      •    Intolerable risk
              o     A risk that, following an understanding of the likelihood and consequences, is so high
                    that it requires actions to avoid or reduce the risk. Individuals and society will not
                    accept this risk and measures are to be put in place to reduce risks to at least a
                    tolerable level.

5.2       Risk Assessment
The risk attributed to the hazardous vegetation within the assessment area and immediately beyond,
in the absence of additional mitigation measures being implemented, is detailed in Table 2 for Lot
12, Table 3 for Lot 8 and Table 4 for Lot 9.
                                          Table 2 - Risk Assessment - Lot 12
          Direction                 North/East             South               East         West

          Approx. minimum
          distance to
                                        40m                >150m           >150m             75m
          hazardous
          vegetation

          VHC’s                         8.1                 N/A                N/A            8.1

          Attack Mechanism

          Smoke*                 Not assessed          Not assessed   Not assessed    Not assessed

          Ember                  Intolerable           Acceptable     Acceptable      Intolerable

          Radiant Heat           Intolerable           Acceptable     Acceptable      Intolerable

          Flame                  Tolerable             Acceptable     Acceptable      Acceptable




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