Appendix F - Bushfire Hazard Assessment & Management Plan

Bushfire Hazard Assessment & Management Plan v1                                      NCES REF: J000669
Lot 2 on RP131369 – 108 Black Mountain Range Road, Black Mountain




7.2 State Planning Policy – Natural Hazards, Risk and Resilience
The Department of State Development, Manufacturing, Infrastructure and Planning’s State Planning
Policy – State interest guidance material – Natural hazards, risk and resilience – Bushfire (December
2019) contains the development assessment benchmarks for natural hazards, risk and resilience -
bushfire. An assessment of the proposed development’s compliance with each of the assessment
benchmarks has been provided below.
Assessment Benchmark 4
Where reconfiguring a lot creating lots of greater than 2000 square metres
To ensure emergency access and operational space for firefighters, include a development footprint
plan that is separated from the closest edge of the adjacent mapped medium, high or very high
potential bushfire intensity area by a distance that achieves a radiant heat flux level of 29 kilowatt
per square metre or less.
The Lot 2 BLE separation achieves a radiant heat flux level of well below 29kW/m2 (approx.
0.9kW/m²) to the hazardous vegetation located to the west of the site.
To facilitate safe evacuation during a bushfire event, include a development footprint plan that is
located within 60 metres of the street frontage and sited to enable a route between the development
footprint plan and the street frontage with a gradient that does not exceed of 12.5 per cent.
Although the proposed Lot 2 BLE is located greater than 60m from the street frontage (approximately
150m), the access driveway is located through low hazard conditions and contains a passing bay
approximately halfway along. The access route is also buffered from westerly fire approach by the
cleared and formed Black Mountain Range Road. The grade of the driveway does not exceed 12.5%.
The proposed access driveway is considered suitable to facilitate safe evacuation during a bushfire
event.
Assessment Benchmark 5
Where reconfiguring a lot:
Subdivision design avoids locating lots (or for lots greater than 2000 square metres, avoids locating
the development footprint plan) that are within bushfire prone areas and on ridgelines, saddles and
crests where slopes exceed 15 per cent.
The Lot 2 BLE is positioned on a broad east-west aligned ridgeline and external of a bushfire prone
area as depicted on the Local Hazard Map (refer BF-03). The land slopes up to the west towards
the identified hazard (i.e., 1º site slope). Slopes adjacent to the BLE exceed 30 per cent however
are host to low hazard mowed grassland and vine forest vegetation and therefore unlikely to support
a wildfire event which could increase in intensity as a result of the steep topography.
Assessment Benchmark 7
Where a requirement for an asset protection zone (or similar) exists:
Landscaping treatments comprise only low threat vegetation, including grassland managed in a
minimal fuel condition, maintained lawns, golf courses, maintained public reserves and parklands,
vineyards, orchards, cultivated gardens, commercial nurseries, nature strips and windbreaks.
OR
Landscaping management maintains a potential available fuel load which is less than eight
tonnes/hectare in aggregate, and fuel structure which is discontinuous.
OR
Development includes a bushfire management plan for the maintenance of any identified asset
protection zone, including landscape design and ongoing vegetation management.
No specific APZ has been prescribed for the Lot 2 BLE as it is located approximately 170m from the
identified hazardous vegetation. Landscaping recommendations set in Section 5.6 comply with
Assessment Benchmark 7.




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