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



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 at:
1. The building envelope, if identified at RaL stage, or
2. Where a building envelope is not identified, at all the lot boundaries.
Compliance with Assessment Benchmark 4 can be attained where all allotments are
sufficiently separated from the nearby forest hazard so that a radiant heat flux level at any
point on the building envelope, or the lot boundaries where no building envelope is identified,
does not exceed 29 kW/m².
The output results from Plate 10 & 11 in Section 3.6 identify that a minimum setback of 21 &
29.3m is required to the edge of the adjoining VHC 24.1 vegetation to achieve the <29 kW/m²
radiant heat flux acting on the proposed building envelopes.
The Plan of Development provides a minimum 39m setback between the proposed building
envelopes and the closest hazardous vegetation (VHC 24.1 Acacia Open Forest) to the south-
west. 29.3m is the minimum separation required to ensure the proposed building envelopes
on the Lots 1 & 2 are exposed to <29kW/m² radiant heat flux as per the Flamesol modelling
presented herein.

The extent of proposed separation comprises land within the lots and the adjacent Black
Mountain Range Road reserve which is considered a reliable permanent low threat zone for
the life of the development.

To ensure the available separation is maintained for the life of the development all land
between the building envelopes and Black Mountain Range Road inclusive of 10m distance
around the future dwellings is to be maintained as a low threat low fuel load Asset Protection
Zone. Vegetative conditions in the APZ are to be provided as detailed in Section 5.6
Landscaping.

5.3 Water Supply
The availability of a reliable water supply for firefighting purposes is a vital tool in the defence
of bushfire impact. Reticulated water supply is currently not available within the site nor
proposed to be connected to the site. The proposed development will therefore require
provision of a readily accessible on-site emergency static water supply in accordance with
Assessment Benchmark 4 of the SPP Bushfire 2019. Assessment Benchmark 4 references
the QFES 2019 Bushfire Resilient Communities document for information regarding
appropriate static water supply. Section 9.1 of Bushfire Resilient Communities’ states:
An appropriate static water supply (in bushfire prone areas where reticulated supply is not
provided) to support effective emergency services response includes a water tank that is
available solely for firefighting purposes and can be accessed by firefighting appliances. The
water tank is to be provided within 10 metres of each building (other than a class 10 building),
which:
a) is either below ground level or of non-flammable construction;
b) has a take-off connection at a level that allows the following dedicated, static water supply
to be left available for access by firefighters:
i.10,000 litres for residential buildings;
It is therefore recommended that a dedicated 10,000 litres should be made available to the
future dwellings on each of the proposed new lots and this volume should be reserved for
firefighting purposes only. Plate 14 outlines an example of how this can be achieved.




© 2022                                                      22