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Attachment D - Bushfire Hazard Assessment
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Inputs Outputs
Flame temperature 1,090 K Minimum distance to < 12.5 kW/m² 21.3 m
Minimum distance to < 10 kW/m² 25.7 m
Rate of Spread - Mcarthur, 1973 & Noble et al., 1980
Flame length - NSW Rural Fire Service, 2001 & Noble et al., 1980
Elevation of receiver - Douglas & Tan, 2005
Flame angle - Douglas & Tan, 2005
Radiant heat flux - Drysdale, 1999, Sullivan et al., 2003, Douglas & Tan, 2005
7 In addition to the setback, the facility ought to have a building which is centrally located and available to
any residents to evacuate to should a fire threaten the area and where the opportunity for evacuation back
to Tewantin is not viable or a safe. This building should be large enough to house the maximum number of
guests for a short period of time, i.e. 1 hour and be connected to water and have access to toilet facilities
and first aid equipment.
Recommendations
Based on our findings above, we make the following recommendations: -
1 The road along the eastern side of the subject site within common property (Lot 0) is to remain and to
continue to provide access for Lot 1.
2 While the AS3959-2009 and Australian Building Code does not include tents or temporary structures as
Class 1, 2, 3 or 10a or 10b and therefore no response to the Code is required, we recommend the
structures be set back from the wet and dry Melaleuca vegetation to west to achieve a Radiant heat flux of
12.5 kW/m2 as per Table 1 above, that being a setback of 21.3 metres.
3 Water points/Stand pipes be located near pool and along south-eastern boundary to allow use by
Emergency Services when required. These water points should be connected via an internal reticulated
water system.
4 The construction of a 20,000 litre water tank with a dedicated 5,000 litres for bushfire protection operations
should be maintained at all times. We note that 2 water tanks are proposed and as such the one tank
could retain the reserve fire fighting water, as well as water within the permanent water reticulation ring
main.
5 The swimming pool is to provide direct access for Rural fire fighting appliances so that they can, if required,
access the water from the swimming pool for fire fighting purposes.
6 An evacuation building should be located to a central area which can be closed, such as the Reception
building or Pool structure (in Figure 1), in case an emergency situation occurs.
As the area is considered to be a bushfire hazard area and as such a response to the Natural Hazards Overlay
Code in the Noosa Plan (2016) is required. We have included our response to the Noosa Plan (2016) Natural
Hazards overlay code below.
If you have questions about this advice, please do not hesitate to contact us by phone or email.
Kind regards,
Rob Friend
Director
Rob Friend & Associates
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