Approved Document Bushfire Hazard and Mitigation Plan 25 02 2025 MCU21/0110 - Negotiated

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                 Inputs                                      Outputs
    Effective slope     8°             Transmissivity           0.872, 0.854, 0.828, 0.803,
                                                                0.79 & 0.728
    Site slope            1°           Viewfactor               0.599, 0.4456, 0.3007,
                                                                0.2045, 0.1663 & 0.0451
    Flame width           100 m        Minimum distance to <               11.7 m
                                       40 kW/m²
    Windspeed             n/a          Minimum distance to <               15.7 m
                                       29 kW/m²
    Heat of               18,600       Minimum distance to <                23 m
    combustion            kJ/kg        19 kW/m²
    Flame                 1,090 K      Minimum distance to <               32.4 m
    temperature                        12.5 kW/m²
                                       Minimum distance to <               38.4 m
                                       10 kW/m²
     Rate of Spread - Mcarthur, 1973 & Noble et al., 1980
     Flame length - NSW Rural Fire Service, 2001 & Noble et al., 1980
     Elevation of receiver - Douglas & Tan, 2005
     Flame angle - Douglas & Tan, 2005
     Radiant heat flux - Drysdale, 1999, Sullivan et al., 2003, Douglas & Tan, 2005

The setback distance required to achieve a radiant heat flux of less than 29kW/m2 is 15.7m
from the potentially hazardous vegetation to the north. Figure 4 below designates the
setback edge of hazardous vegetation where the distance to the proposed building is 21.9m
from the north-eastern most corner, and 24.4m from the north-western most corner. This will
achieve a Radiant Heat Flux within 19-29kW/m2 which is within the sates acceptable level of
risk. Compliance with AS3959-2018 for a Class 3 Structure will be required.



Figure 4:- Proposed development location opposite potentially hazardous vegetation.

NOTE 1 – A setback distance from the nominal ‘Hazardous Vegetation Effective Edge Line’
of 15.7 metres will achieve a Radiant Heat Flux less than 29kW/m2. The actual distance of
the proposed development to hazardous vegetation is 38.4 metres
NOTE 2 - the building location has been overlaid over a 2020 aerial image and shows the
current tennis courts. These will be removed as part of the site development works as
approved by Noosa Council.




         RF17-040 – Boutique Hotel – Noosa Springs – Bushfire Hazard Assessment & Management Plan
Rob Friend & Associates Pty Ltd                                                     25th of February 2025