Bushfire Hazard Assessment

                                                                                        BHA Report for36 Riverpark Drive, Ringtail Creek




Step 3. Determine the effective slope in degrees under the classified vegetation
The classified vegetation is downslope at 3 degrees, calculated using a Nikon Forestry Pro Range Finder and Inclinometer.


Step 4. Determine the slope in degrees of the land between the site and the classified vegetation
The slope between the site and the classified vegetation is downslope with an average slope of 3 degrees.


Step 5. Determine the distance of the site from classified vegetation
Distance is calculated from the closest edge of the classified vegetation. Classified vegetation under AS 3959-2018 does not
include low threat vegetation. The distance to the classified vegetation was calculated using a Nikon Forestry Pro Range Finder
and Inclinometer at 30 metres.


Step 6. Calculations
Effective slope (°) - 3
Site slope (°) - 3
Distance (m) - 30
Vegetation classification –– Remnant RE 12.3.2 - Wet eucalypt tall open forest and RE 12.3.4 Melaleuca open forests on
seasonally inundated lowland coastal swamps
Forest Fire Danger Index (FFDI) – 47
Surface fuel load (t/ha) – 28.0
Overall fuel load (t/ha) – 35
Heat of combustion (kj/kg) – 18 600
Flame temperature (K) – 1 090


Outcomes
Intensity (kW/m2) – 41 397
Radiant heat flux (kW/m2) – 18.33
Bushfire Attack Level (BAL) - 19




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