Reference Document - 152000.200053.3 - Bushfire Fire Risk Assessment (As Published)

Bushfire Risk Assessment v3                                                                    NCES REF: J001433
Select Areas of Noosa Springs Residential Estate, Noosa Heads



                                  Table 3 – <29 kW/m² Radiant Heat Flux Setbacks
           Area / VHC                  Radiant Heat Flux (kW/m²)             Minimum Separation required
                                                                                      (metres)*

               1 / 3.1                               <29                                 2.8

               1 /9.1                                <29                                 9.6

               2 / 8.1                               <29                                 15

               3 / 8.1                               <29                                 17

              3 / 22.1                               <29                                 14

               4 / 8.1                               <29                                 15

* Source – Flamesol Minimum Distance calculator

Based on site observations, most dwellings flanking Area 1 readily satisfy the applicable 2.8m
separation distance to VHC 3.1 and 9.1. Conversely, most dwellings flanking Areas 2-4 do not
satisfy the applicable separation distances required to achieve <29 kW/m² radiant heat flux
exposure. This comparison does not indicate non-compliance with any statutory requirement, but
reflects assessment against a surrogate risk benchmark.
An example of insufficient separation occurs adjacent to Lot 54 in Area 3 as shown in Plate 27.




                                                                     Vegetation in
                                                                     17m APZ




                                                                     17m building
                                                                     offset approx.




Plate 27 – Lot 54 (Area 3) with woody vegetation within 17m of the <29 kW/m² separation requirement.

5.2.2.3 Asset Protection Zone Design
Any lots subsequently mapped in the future in a Designated Bushfire Prone Area should seek to




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