Bushfire Hazard Assessment

                                                                                         BHA Report for36 Riverpark Drive, Ringtail Creek




Potential Radiant Heat Flux

The Australian Standard, Construction of Buildings in Bushfire Prone Areas (AS 3959-2018), provides a suitable methodology
for identifying assessable vegetation and determining the requirements for the construction of buildings in order to improve
their resistance to bushfire attack from burning embers, radiant heat, flame contact and a combination of the three attack forms.

Calculations using AS 3959-2018, in accordance with Appendix B - Detailed Method for Determining the Bushfire Attack
Level (BAL) – Method 2 (Normative), determine the fireline intensity generated by the identified vegetation type. Table 1
indicates the relative Heat Flux Exposure as a function of distance of a building from the vegetation on the proposed site. The
proposed structure will be exposed to a radiant heat flux of 18.33 kW/M2 equating to a Bushfire Attack Level (BAL) of 19
(Appendix 1).



Bushfire Protection Measures in Combination

Figure 11 illustrates that effective protection against bushfire can only be achieved by the integration of multiple measures.
Removing the bushland (hazard) will remove the risk but this option is neither necessarily possible nor desirable. An
acceptable level of protection of life and property can be achieved while still retaining and protecting biodiversity and the
natural values of the bushland.




                                                          Figure 11


+ Bushfire assessments
+ Property vegetation assessments
+ Site planning for bushfire
+ Property management for bushfire                                                Bushfire Planning Specalists - qldbushfireplanning.com.au
+ Bushfire management plans