Appendix G - Bushfire Hazard Assessment & Management Plan

Bushfire Hazard Assessment & Management Plan v1                                           NCES REF: J001050
Lot 3 on RP131369 – 96 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. The SPP assessment benchmarks prevail over those prescribed in the Noosa Plan Natural
Hazards Overlay Code where they involve the same design elements. An assessment of the
proposed development’s compliance with each of the assessment benchmarks has been provided
below.
Assessment Benchmark 4
To ensure emergency services can respond effectively, development is located within a reticulated
water supply area or includes a dedicated static water supply that is available solely for fire-fighting
purposes and can be accessed by fire-fighting vehicles.
Reticulated water supply is not available to the site hence a dedicated static water supply of 10,000L
for each future dwelling is recommended as per the SPP Bushfire 2019 water supply guidance
material recommendations.
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.
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.
All of the proposed BLE’s are provided with enough separation to achieve <29 kW/m² radiant heat
flux hence satisfying the Assessment Benchmark 4 <29 kW/m² criteria.
The proposed Lot 2 building envelope and proposed Lot 1 western building envelope will gain access
via short driveways (i.e., 10-20m) connecting directly to Black Mountain Range Road to the west of
the site. Proposed Lot 1’s eastern building envelope will gain access via a long driveway (approx.
350m) connecting to Black Mountain Range Road to the west of the site. However, as the driveway
for its majority will be located within the identified Low Potential Bushfire Intensity Area, the length is
considered acceptable.
All of the proposed access driveways are bordered by low threat conditions (i.e., VHC 40.4 or VHC
3.1) on either side and hence the chance of access/egress becoming constrained within a bushfire
event is deemed low. All new driveways are expected to achieve a <12.5% grade.
It is recommended all new driveways and access easements are built to a minimum of 3.5m width
with 4.8m vertical clearance in accordance the QLD Fire Hydrant and Vehicle Access Guidelines
2019.
Lot 1’s driveway is to provide a dedicated turning area at its terminus at the eastern building
envelope/dwelling, or near to, for a QFES medium rigid vehicle in accordance the QLD Fire Hydrant
and Vehicle Access Guidelines 2019.
Where reconfiguring a lot creating additional lots for the purpose of residential development and a
reticulated water supply is not provided (fire trails).
To ensure safe access and egress and operational space for rural fire-fighting vehicles, a fire trail
and working area is provided that separates the new residential lot or development footprint plans
from adjacent mapped medium, high or very high potential bushfire intensity and is designed and
constructed in accordance with the design parameters in Table 4.
Given the proposed Lots satisfy the Assessment Benchmark 4 criteria and the high density of Low
Potential Bushfire Intensity Areas surrounding the site, and as the immediately adjacent hazardous
bushland interface can be readily accessible by emergency services from Black Mountain Range
Road corridor, the provision of additional fire break trails within the site is deemed unnecessary



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