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Reference Document - RAL26 0015 - Bushfire Hazard Assessment (As Published) · RAL26/0015
Bushfire Hazard Assessment & Management Plan v2 NCES REF: J001445
434 Lake Cooroibah Rd Lake Cooroibah, QLD
Calculated March 12, 2026, 12:36 am (MDc v.4.9)
SU2
Minimum Distance Calculator - AS3959-2018 (Method 2)
Inputs Outputs
Fire Danger Index 47 Rate of spread 1.41 km/h
Vegetation
Forest Flame length 12.59 m
Classification
Understorey fuel
23.4 t/ha Flame angle 54 °, 64 °, 72 °, 77 °, 78 ° & 84 °
load
4.91 m, 5.41 m, 5.63 m, 5.62 m,
Total fuel load 28.4 t/ha Elevation of receiver
5.55 m & 4.76 m
Vegetation height n/a Fire intensity 20,748 kW/m
0.876, 0.859, 0.835, 0.809, 0.796 &
Effective slope 1° Transmissivity
0.732
0.5999, 0.4414, 0.2982, 0.2025,
Site slope 1° Viewfactor
0.1648 & 0.0448
Minimum distance to < 40
Flame width 100 m 10.3 m
kW/m²
Minimum distance to < 29
Windspeed n/a 14 m
kW/m²
Minimum distance to < 19
Heat of combustion 18,600 kJ/kg 20.6 m
kW/m²
Minimum distance to <
Flame temperature 1,090 K 29.3 m
12.5 kW/m²
Minimum distance to < 10
34.9 m
kW/m²
Document Set ID:©24816699
2026 43
Version: 1, Version Date: 25/05/2026
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