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BUSHFIRE HAZARD ASSESSMENT AND MANAGEMENT PLAN v2 - Coveys Road TINBEERWAH (1)
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Log in to see the plans as drawnBUSHFIRE HAZARD ASSESSMENT AND MANAGEMENT
PLAN v2
LOT 2, 4 & 5 ON RP172460 & LOT 7 ON RP895754
66, 82 & 98 COVEYS RD & 39 TINBEERWAH RD, TINBEERWAH
FOR
KEN SHAW
JANUARY 2022
PO Box 9566 Pacific Paradise QLD 4564
ABN: 60 625 108 625
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Page 2
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
DOCUMENT CONTROL
Document: Bushfire Hazard Assessment and Management Plan
Client: Ken Shaw
Project Number: J000545
Project: Reconfiguring a Lot
Site: Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
File Ref: C:\CLIENTS\RG STRATEGIC\98 Coveys Road, 82 Coveys Road, 66 Coveys
Road, and 39 Tinbeerwah Road, TINBEERWAH 4563 QLD\04
REPORTING\01_BUSHFIRE
Version Date Distribution Author/s Approved
1 25/02/2020 Russell Green – RG Strategic N. Willis (B. Sc., Dip. Joshua Lee (B. Sc. AES)
Ken Shaw CLM., mAABR) – – Director / Principal
Principal Ecologist Environmental Scientist
2 14/01/2022 Russell Green – RG Strategic Joshua Lee (B. Sc. Joshua Lee (B. Sc. AES)
Ken Shaw AES) – Director / – Director / Principal
Principal Environmental Scientist
Environmental
Scientist
DISCLAIMER
To the extent permitted by law, North Coast Environmental Services (including its employees, partners and consultants)
excludes all liability to any person for any consequences, including but not limited to all losses, damages, costs,
expenses, and any other compensation, arising directly or indirectly, from using this publication (in part or whole) and
any information or material contained in it.
© 2022 i
Page 3
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Contents
1 INTRODUCTION 3
1.1 BACKGROUND 3
1.2 DEVELOPMENT PROPOSAL 3
1.3 THE NOOSA SHIRE COUNCIL PLANNING SCHEME (THE NOOSA PLAN 2006) 2014 BUSHFIRE
HAZARD OVERLAY MAP 3
1.4 STATE PLANNING POLICY ASSESSMENT BENCHMARK MAPPING 4
2 SITE DESCRIPTION 6
2.1 LAND USES 6
2.2 TOPOGRAPHY 6
2.3 VEGETATION 7
2.3.1 VEGETATION HAZARD CLASS 8.1 – WET EUCALYPT TALL OPEN FOREST 9
2.3.2 VEGETATION HAZARD CLASS 40.4 – LOW TO MODERATE TREE COVER IN BUILT UP AREAS 9
2.4 VEGETATION EXTERNAL OF THE 150M ASSESSMENT BUFFER 10
2.4.1 NORTH 10
2.4.2 EAST 10
2.4.3 SOUTH 10
2.4.4 WEST 10
3 SPP HAZARD ASSESSMENT 12
3.1 HAZARD ASSESSMENT METHODOLOGY 12
3.2 LOCAL HAZARD AREA MAP 12
4 QUANTITATIVE MODELLING 16
5 SPP BUSHFIRE RISK ASSESSMENT 19
5.1 GENERAL 19
5.2 RISK ASSESSMENT 19
5.3 QUALITATIVE RISK DISCUSSION 20
5.3.1 NORTH 20
5.3.2 SOUTH 21
5.3.3 EAST 21
5.3.4 WEST 21
6 BUSHFIRE MANAGEMENT PLAN 22
6.1 GENERAL 22
6.2 ASSET PROTECTION ZONES 22
6.2.1 STATE PLANNING POLICY – STATE INTEREST GUIDANCE MATERIAL (NATURAL HAZARDS, RISKS AND
RESILIENCE – BUSHFIRE) DECEMBER 2019 22
6.2.2 RADIANT HEAT FLUX SETBACKS 23
6.2.3 ASSET PROTECTION ZONE DESIGN 23
6.3 WATER SUPPLY 24
6.4 FIRE BREAKING TRAILS 24
6.5 ROADS AND DRIVEWAYS 25
6.6 LANDSCAPING AND REGROWTH 25
6.7 GENERAL PROPERTY MAINTENANCE 25
7 NOOSA PLAN 2006 27
© 2022 1
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah 7.1 BUSHFIRE HAZARD OVERLAY CODE 27 8 CONCLUSIONS AND CERTIFICATION 31 8.1 CONCLUSION 31 8.2 CERTIFICATION MATTERS 31 9 REFERENCES 32 APPENDIX 1 – SITE PLAN 33 © 2022 2
Page 5
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
1 INTRODUCTION
1.1 Background
This Bushfire Hazard Assessment and Management Plan has been prepared to assess and manage
the degree of potential bushfire risk acting on Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
located respectively at 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah (herein referred to
as ‘the site’). The report was requested to determine the suitability of a proposed reconfiguration of
lot development application which has been submitted to Noosa Council.
1.2 Development Proposal
The applicant has lodged a boundary realignment reconfiguration of a lot development application
(four into four lots) to Noosa Council (RAL19/0037). The proposal seeks to realign the existing
boundary configuration to enable more suitable building sites within each of the allotments, which
are currently constrained by access issues and significant ecological values. In addition, the
available building areas within the existing allotment configuration are constrained by significant
bushfire hazard and fire management issues. The proposed boundary realignment seeks to provide
suitable building sites which reduce the risk of bushfire impacts to future dwellings and occupants.
The proposed boundary realignment has been provided as Appendix 1.
1.3 The Noosa Shire Council Planning Scheme (The Noosa Plan 2006) 2014 Bushfire
Hazard Overlay Map
The Noosa Plan 2006 Bushfire Overlay Map (Natural Hazards) depicts the following bushfire prone
areas across the site (refer to Plate 1):
• Very High Potential Bushfire Intensity;
• High Potential Bushfire Intensity Area; and
• Potential Impact Buffer.
Proposed building envelopes are located within the areas mapped as ‘High Potential Bushfire
Intensity Area’ and ‘Potential Impact Buffer’.
© 2022 3
Page 6
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 1 – NSC Bushfire Overlay Mapping
1.4 State Planning Policy Assessment Benchmark Mapping
The site is mapped on the State Planning Policy (SPP) Interactive Mapping System’s Bushfire Prone
Area mapping as containing the following bushfire prone areas (refer to Plate 2):
• Very High Potential Bushfire Intensity area;
• High Potential Bushfire Intensity area; and
• Potential Impact Buffer.
© 2022 4
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 2 – SPP Bushfire Prone Area Mapping
Council’s Bushfire Hazard Overlay Code applies to assessable development impacted by Council’s
Bushfire Overlay mapping. Under Chapter 2, Part 1, Section 8, Item 4(a) of the Planning Act 2016,
where there is an inconsistency between a State Planning Policy and local government planning
instrument, the State Planning Policy applies over the local planning instrument. Therefore, in this
instance, the SPP Bushfire Hazard Areas mapping prevails with respect to the hazard classes
mapped on the site and the trigger for assessment under the NSC Bushfire Hazard Overlay Code.
© 2022 5
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
2 Site Description
2.1 Land Uses
The site comprises four irregular shaped allotments containing a mix of rural and small-scale farming
land uses, pastural grasslands and remnant bushland areas. The site has a combined area of
approximately 34ha and is bounded by Tinbeerwah Road to the east and Coveys Road to the south.
Significant areas of intact bushland containing rainforest vegetation assemblages are present in the
eastern and northern portions of the site, flanking waterways and abutting cleared pastural areas
which contain scattered native and exotic trees. Landscaped garden plants including Jacaranda
trees occur close to the southern boundary of Lot 2 on RP172460. An established pecan nut orchard
is present within a historically cleared area in the middle of remnant bushland within Lot 7 on
RP895754.
An existing residence is present within Lot 2 on RP172460. This lot contains open pastural areas
with native and exotic planting in addition to several small waterbodies and native regrowth.
Mt Tinbeerwah is present to the north of the site. Significant intact areas of bushland occur around
the mountain and further north and east of the site.
Plate 3 depicts existing site conditions.
Plate 3 – Site Context (Source: Google Earth)
2.2 Topography
The site is located at the base of the lower southern slopes of Mt Tinbeerwah, exhibiting a
predominantly southern and eastern aspect. The site contains several ridge crests, drainage features
including mapped waterways and moderate to gentle slopes.
The site obtains a topographic high of approximately RL130m next to Coveys Rd in the south, and
a topographic low of approximately RL100m in the far west.
Plate 4 depicts the topographic conditions within and adjacent to the site.
© 2022 6
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 4 – Site Topography (Source: NSC Intramaps)
2.3 Vegetation
The site contains a range of native and exotic species including fruit trees, planted exotics, pasture
grasses and remnant and regrowth vegetation assemblages.
Remnant vegetation occurs within the eastern portion of the site, characterised by a mature tall open
Eucalypt forest over rainforest understorey (wet sclerophyll). This vegetation community is akin to
Regional Ecosystem (RE) 12.9-10.1, described as Tall Open Forest with Eucalyptus resinifera, E.
grandis, E. robusta, Corymbia intermedia on sedimentary rocks.
The following vegetation hazard classes (classified in accordance with Leonard et al. (2017)) were
identified within the assessment area which includes a 150m buffer about the site:
• Vegetation Hazard Class 8.1 – Wet Eucalypt tall open forest;
• Vegetation Hazard Class 40.4 – Continuous low grass or tree cover.
The vegetation characteristics within each vegetation hazard class are described in the following
sections while Figure 1 depicts the distribution of the observed vegetation hazard classes within the
assessment area.
© 2022 7
Page 10
LEGEND THE SITE be , rt 150M BUFFER TO ASSESSMENT AREA ia vee - Vegetation Hazard Class 8.1 Wet Eucalypt open forest VHC 40.4 Vegetation Hazard Class 40.4 Low to moderate tree cover in built up areas = INSET A INSET B SCALE 1:2000 @ Al SCALE 1:2000 @ Al P: 07 5450 5984 Services ABN: 60 629 108629 | AT 66, 82, 98 COVEYS RD & 39 TINBEERWAH RD, TINBEERWAH SCALE: 1:2000 @ A1 Environmental Management Consultants \ DATE: 12/01/2022 North Coast PROJECT TITLE: CLIENT JOB MAsnvronmenta PO Bax 9566 Paciic Paradise, and, 4564 | BUSHFIRE ASSESSMENT KEN SHAW J000545 BFO1 A
Page 11
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
2.3.1 Vegetation Hazard Class 8.1 – Wet Eucalypt tall open forest
Vegetation Hazard Class 8.1 (VHC 8.1) exhibits an average canopy height of approximately 40-50m
with projective foliage canopy cover (PFCC) of 40-50%. The canopy is dominated by Eucalyptus
grandis (flooded gum), Corymbia intermedia (pink bloodwood), Lophostemon confertus (brush box)
in addition to Eucalyptus microcorys (tallowwood) and Syncarpia glomulifera (turpentine).
The mid-storey generally contains a dense association of rainforest species such as Cryptocarya
glaucescens (jackwood), Pilidiostigma rhytispermum (small-leaved plum myrtle) and Livistona
australis (cabbage palm). The understorey is colonised by a mosaic of native fern, grass and sedge
species, including Ottochloa gracillima (graceful grass), Calochlaena dubia (soft bracken) and
Gahnia aspera (saw sedge).
VHC 8.1 is akin to ‘of concern’ Regional Ecosystem (RE) 12.9-10.1, which is described as Tall Open
Forest with Eucalyptus resinifera, E. grandis, E. robusta, Corymbia intermedia on sedimentary rocks.
VHC 8.1 is attributed a potential total fuel load of 35 t/ha (Leonard et al., 2017) and is assigned a
High Potential Bushfire Intensity class on flat ground (QFES 2019). Plate 5 depicts typical conditions
within VHC 8.1.
It is noted that there are areas within the bushland area to the west of Lots 8 and 9 that have been
subject to selective clearing through farm forestry. However, despite this mature fuel loads have
been assumed to be consistent throughout the vegetation community as required by the SPP.
Plate 5 - Characteristic vegetation within VHC 8.1
2.3.2 Vegetation Hazard Class 40.4 – Low to moderate tree cover in built up areas
Vegetation Hazard Class 40.4 (VHC 40.4) comprises areas of regularly maintained lawns, gardens
and pastural areas, interspersed with mature trees typical of larger rural-residential style allotments
surrounding the site. VHC 40.4 is attributed a potential fuel load of 5 t/ha (Leonard et al., 2017) and
is assigned a Low Potential Bushfire Intensity class (QFES 2019). It is noted VHC 40.4 is present
fronting Tinbeerwah Road to the east and within the existing cleared allotment to the west, fronting
Coveys Road. Plate 6 depicts typical conditions within VHC 40.4.
© 2022 9
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 6 - Characteristic vegetation within VHC 40.4
2.4 Vegetation external of the 150m assessment buffer
The distribution and composition of hazardous vegetation (vegetation assigned a fuel load of >8t/ha)
situated external of the 150m assessment area has not been ground truthed however can be
assessed at a high level via desktop assessment. QLD DNRME’s Vegetation Management Support
Map identifies the composition and distribution of remnant regional ecosystems at a 1:25,000 scale
in south east Queensland. Superimposing this layer over satellite imagery highlights the composition
and extent of presumedly intact native bushland in comparison to cleared and semi-cleared areas in
the locality (refer to Plate 7). The regional ecosystems identified in Plate 7 are defined below along
with their associated VHC’s.
2.4.1 North
The landscape to the north is dominated by existing remnant vegetation areas surrounding Mount
Tinbeerwah. Remnant vegetation is mapped as containing a RE 12.9-10.14, RE12.9-10.1 and RE
12.9-10.17 on the lower slopes and RE 12.8.19 and RE 12.8.20 on Mt Tinbeerwah.
The lower slope RE’s are attributed a potential fuel load of 35t/ha (Leonard et al., 2017) and are
assigned a High Potential Bushfire Intensity class (QFES 2019).
RE 12.8.19 and RE 12.8.20 present on Mt Tinbeerwah are attributed a potential fuel load of 17.2
t/ha (Leonard et al., 2017) and are assigned a Medium Potential Bushfire Intensity class (QFES
2019).
2.4.2 East
The vegetation located to the east of the site is dominated by a mosaic of remnant vegetation areas
including RE 12.9-10.14 (Eucalyptus pilularis tall open forest). RE 12.9-10.14 is attributed a potential
fuel load of 35t/ha (Leonard et al., 2017) and is assigned a High Potential Bushfire Intensity class
(QFES 2019).
2.4.3 South
The vegetation located to the south of the site is dominated by a mosaic of remnant and non-remnant
areas within rural allotments, typically associated with waterways. The dominant RE closest to the
site is described as RE 12.3.11 (Eucalyptus tereticornis and Corymbia intermedia open forest on
alluvial plains) (VHC 16.1) with a moderate sized unit located to the south of Coveys Rd. RE 12.3.11
is attributed a potential fuel load of 16t/ha (Leonard et al., 2017) and is assigned a High Potential
Bushfire Intensity class (QFES 2019).
2.4.4 West
The landscape located to the west/north-west of the site is mapped as containing a large unit of RE
12.9-10.1 and 12.9-10.17 Tall open Eucalypt forest. Both vegetation types are expected to contain
VHC 8.1 which is attributed a potential fuel load of 35t/ha (Leonard et al., 2017) and are assigned a
High Potential Bushfire Intensity class (QFES 2019).
© 2022 10
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah Plate 7 – Remnant regional ecosystems vs. cleared and semi-cleared areas (Image source: Queensland Globe) © 2022 11
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
3 SPP HAZARD ASSESSMENT
3.1 Hazard Assessment Methodology
The NSC Planning Scheme Policy for the Bushfire Overlay Code requires that a site-specific bushfire
hazard assessment be prepared to assess the degree of bushfire hazard acting on a site captured
within a mapped Designated Bushfire Hazard Area. The SPP Bushfire Prone Area mapping prevails
over the NSC Bushfire Hazard Area mapping with respect to the currency of the methodology
adopted to prepare the mapping. Accordingly, the site-specific hazard mapping required by the
Bushfire Hazard Overlay Code is to be prepared consistent with the methodology adopted to prepare
the SPP mapping.
The methodology used to prepare the SPP mapping is described in:
• Department of Infrastructure, Local Government and Planning’s Natural Hazards, Risk and
Resilience –– Bushfire (December 2019) State Planning Policy – state interest guidance
material; and
• Queensland Fire and Emergency Services - (2019) Planning for Bushfire Resilient
Communities.
Site-specific hazard maps are referred to as Local Hazard Area Maps in the SPP documents. The
preparation of Local Hazard Area Maps has been undertaken for the site in accordance with the
methodology described in the above referenced documents.
3.2 Local Hazard Area Map
A Local Hazard Area Map was prepared by adopting the following methodology:
• Categorizing the vegetation within the site in accordance with the vegetation hazard classes
derived from Leonard et al. (2017);
• Subdividing the identified vegetation hazard classes into bushfire hazard sub-units based on
slope differences and vegetation hazard classes. All upslope and across slope vegetation
units are allocated an underlying slope of 1 degree as per methodology prescribed within
Queensland Fire and Emergency Services - (2019) Planning for Bushfire Resilient
Communities;
• Assigning SPP Potential Bushfire Intensity classes to the sub-units;
• Using the patch and corridor filtering process identified in Leonard et al. (2014 & 2017) to
amend the bushfire hazard sub-units1; and
• Application of 100m Potential intensity buffers to the amended sub-units to derive an overall
Local Hazard Area Map.
Table 1 details the Potential Bushfire Intensity classes and their corresponding potential fire-line
intensity (kW/m) values as prescribed within Leonard et. al. 2017.
1 The patch and corridor filtering process to remove or downgrade hazard levels of small patches and narrow corridors involves the
following three stages:
• Merging small patches of a single Vegetation Hazard Class less than 0.5 ha;
• Merging small Vegetation Hazard Class patches between 0.5 and 1 ha with higher or moderate fuel loads (greater than 8
tonnes/ha); and
• Removing narrow corridors of vegetation less than 50m wide through a process of patch erosion and dilation. These small
patches are merged with surrounding vegetation by allocating a patch to the Vegetation Hazard Class that is most common to
the patch boundary (Leonard et al., 2017).
© 2022 12
Page 15
Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Table 1: Potential Bushfire Intensity classes
The subunit level Local Hazard Area Map is presented as Figure 2 and identifies the site is affected
by High and Very High Potential Bushfire Intensity areas.
Several subunits were patch and corridor filtered out of Figure 2 due to their limited patch size (i.e.,
each individual unit is less than 0.5ha and/or less than 50m width). These small subunits have been
merged with the dominant adjoining Vegetation Hazard Class.
Narrow corridors are less likely to ignite due to their disconnection with fuels that can carry a running
fire front. If the corridor is ignited by either a point source or line ignition, these areas will limit the
width of the fire head and hence fire line intensity. The combination of these likelihood and intensity
estimates indicate it is unlikely that a fire line intensity of 4000kW/m would be achieved and can be
considered a low hazard for the purpose of land use planning to mitigate bushfire risks (Leonard et.
al. 2017).
The site scale overall Local Hazard Map is presented in Figure 3 and identifies the following Potential
Bushfire Intensity Areas within the assessment area:
• Very High Potential Bushfire Intensity Area;
• High Potential Bushfire Intensity Area; and
• Potential Impact Buffer.
The proposed building envelopes have been located in the Potential Impact Buffer Areas.
The site scale Local Hazard Map presented in Figure 3 shall be viewed as superseding the SPP
broadscale mapping attributed to the site and should be used to guide the formulation of appropriate
site-based bushfire management measures for the proposal.
© 2022 13
Page 16
SUB UNIT HAZARD ASSESSMENT
Sub Unit 1 Sub Unit 4
_ . | Maximum | Potential _ . ___|Maximum| Potential] =
_|Fire Weather| i FireWeather| | |. _ | Potential
Vegetation Hazard Class Surtace BUG}) Tetal rel ee an | Landscape | Fireline bushfire Vegetation Hazard Class Surface Fuel} Total Fuel Severity absieeaie,| SIteune: Bushfire
Savannahs Load (t/ha) |Load (t/ha)} °ver'tY intensity ie Load (t/ha) |load (t/ha)| “fee” | Slope | Intensity] eit
ah (kw/m) [Intensity FFI | (degrees) | (kw/m) |!Mtensi"|
i VHC40.4 - Low to
VHC8.1— Wet Eucalypt _ _ __ ;
Open Forest 31 35 50 5 47,492 moderate tree cover in 45 5 50 10 1,390 Low
built up areas ]
a ‘Maximum | Potential Sub Unit 5
_..,_., | Maximum | Potentia en
7 _ |. |Fire Weather|, oo. Potential oe Wwestha,|Maximum|Potential| |
Vegetation Hazard Class ae es See Severity Bebeeage Fireline Bushfire . Surface Fuel} Total Fuel Fire Weather Landscape} Fireline Reem
Load (t/ha) |Load (t/ha) — Slope | Intensity Vegetation Hazard Class Severity eile _____.__| Bushfire
: Me (FFDI are at Intensity* Load (t/ha) | Load (t/ha) . Slope | Intensity)
(FFD) | (degrees) | (kw/m) v (rept) | OPE | IMFENSIY | tensity*
VHC8.1 — Wet Eucalypt _ w_| (degrees) | (kw/m) Y
Open Sheet ue a a oe e Senate VHC8.1— Wet Eucalypt 31 35 50 1 36,037 [xe |
Open Forest is
Sub Unit 3 Sub Unit 6
_..._., | Maximum | Potential —Fenman neal
a __,_. _,|Fire Weather} oo. Potential ire Weather| “2ximum| Potential! «oni
. Surface Fuel| Total Fuel |" Y°*M°r| andscape| Fireline . Surface Fuell| Total Euel| |e OO li ecciceanel ihetine: | ron
Vegetation HazardClass}) | in| Severity Bushfire Vegetation Hazard Class Severity pe Bushfire
Load (t/ha) |Load (t/ha) (FFDI) | Slope | Intensity Load (t/ha) | Load (t/ha) (FFD!) Slope Intensity] | ten ity*
___| (degrees) fm _ "| (degrees) | (kw/m)
Openforest | © | oS | |? eee ee
INSET A
(—-
7
SCALE 1:2000 @ Al
Environmental Management Consultants
North Coast
Environmental
Wf Services
PROJECT TITLE:
PO Box 9566 Pacific Paradise, Qld, 4564 | BUSHFIRE ASSESSMENT
P: 07 5450 5984
ABN: 60 625 108 625
(\
AT 66, 82, 98 COVEYS RD & 39 TINBEERWAH RD, TINBEERWAH
eae
KEN
INSET B
\_/ SCALE 1:2000 @ A1
SHAW
LEGEND
THE SITE
150M BUFFER TO ASSESSMENT AREA
HIGH POTENTIAL BUSHFIRE INTENSITY
VERY HIGH POTENTIAL BUSHFIRE INTENSITY
| | LOW POTENTIAL BUSHFIRE INTENSITY
r---c-
pa | VEGETATION <5OM WIDE HAVE BEEN REMOVED
Intensity I | AS PER THE PATCH AND CORRIDOR FILTERING PROCESS
J — — — 5 (Leonard et. al (2017)
Sub Unit 7
- Fire Weather Maximum Potential Potential
. Surface Fuel] Total Fuel . Landscape] Fireline
Vegetation Hazard Class| __ Severity __ | Bushfire
Load (t/ha) }Load (t/ha) (FFDI) Slope | Intensity Intensity*
(degrees) | (kw/m)
ERE 31 35 50 5 47,492
Open Forest
Sub Unit 8
oe Fire Weather Maximum Potential Potential
Vegetation Hazard Class Surface Fuel} Total Fuel Severity Landscape] Fireline Bushfire
z Load (t/ha) | Load (t/ha) (FFDI) Slope | Intensity
(degrees) | (kw/m)
VEEL Mvet Eucolyis 31 35 50 3 41,370
Open Forest
Sub Unit 9
Vegetation Hazard Class | Surface Fuel} Total Fuel |Fire Weather| Maximum | Potential | Potential
VHC40.4 — Low to
moderate tree cover in 4.5 2 50 4 919
built up areas
# From: Leonard, J., & Opie, K., (2017) Estimating the potential bushfire hazard of vegetation patches and
corridors —-an enhancement of Queensland’s methodology for State-wide mapping of bushfire prone areas.
CSIRO, Australia.
* From: Leonard, J., Newnham, G., Opie, K., and Blanchi, R. (2014) Anew methodology for state-wide mapping of
bushfire prone areas in Queensland. CSIRO, Australia.
B REVISION V2 2022-01-12 JI JL
A PRELIMINARY 2020-02-19 RC JL SCALE: 1:2000 @ A1
COPYRIGHT © 2020 NCES. THIS DOCUMENT MAY NOT BE COPIED OR TRANSMITTED IN ANY FORM OR BY ANY
ISSUE DETAILS DATE INIT CHK'D| MEANS IN PART OR IN WHOLE WITHOUT THE WRITTEN CONSENT OF NCES. DATE: 1 2/01 12022
Page 17
LEGEND [| THE SITE tt 150M BUFFER TO ASSESSMENT AREA | | HIGH POTENTIAL BUSHFIRE INTENSITY | | VERY HIGH POTENTIAL BUSHFIRE INTENSITY POTENTIAL IMPACT BUFFER SO iN Lf SS SSS SP S= Ve / ? ¢\ INSET A y\ INSET B \_/ SCALE 1:2000 @ A1 \_/ SCALE 1:2000 @ A1 North Coast PROJECT TITLE: NORTH Environmental PO Box 9566 Pacifc Paradise, ald, 4564 | BUSHFIRE ASSESSMENT KEN SHAW —— cap VE FIGURE 3 J000545 BFO3 A Ser VICES consultant ABN: 60 625 108625 | AT GG 82,98 COVEYS RD & 39 TINBEERWAH RD, TINBEERWAH A PRELIMINARY BEMEORIG TEI | cana i Sani enon Runa Ae sone ayes
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
4 QUANTITATIVE MODELLING
Quantitative modelling of the potential bushfire conditions that may be experienced within the
dominant hazardous VHC 8.1 Wet Eucalypt tall open forest vegetation within the site has been
undertaken to assist in determining the suitability of the development and any asset setback
requirements.
The models used comprise industry standard bushfire equations which have been built into the FPAA
endorsed FLAMESOL computer model. FLAMESOL allows numerous input variables to be adjusted
including fuel loads, fire danger index, site slope and distance to vegetation. FLAMESOL uses the
following algorithms:
• Rate of Spread – McArthur (1973) and Nobel et al. (1980)
• Flame Length – NSW Rural Fire Service (2001) and Nobel et al. (1980)
• Elevation of Receiver – Douglas and Tan (2005)
• Flame Angle – Douglas and Tan (2005)
• Radian Heat Flux – Drysdale (1999), Sullivan et al. (2003) and Douglas and Tan (2005)
The FLAMESOL Minimum Distance calculator has been used and comprises an AS 3959:2018
Method 2 (Appendix B) based calculator which will determine standard bushfire behaviour variables
as well as the minimum distances required to achieve a range of different radiant heat levels
(represented by BAL's).
Fuel load inputs have been drawn from Leonard et al. (2017) based on the calculated potential fuel
loads for VHC 8.1 being 31t/ha surface and near surface combined fuels and 35t/ha overall fuels.
Plate 8 depicts the output results for the vegetation flanking proposed Lot 12 based on 8º downslope
conditions under the adjoining VHC 8.1 vegetation. Plate 9 depicts the output results for the
vegetation flanking proposed Lots 8 and 9 based on 3º downslope conditions under the adjoining
VHC 8.1 vegetation.
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 8 – VHC 8.1 Tall open forest - 8º (Lot 12)
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Plate 9 – VHC 8.1 Tall open forest - 3º (Lots 8 & 9)
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
5 SPP BUSHFIRE RISK ASSESSMENT
5.1 General
A bushfire risk assessment for the site has been prepared generally in accordance with State
Planning Policy – State Interest Guideline – Natural Hazards, Risk and Resilience (DILGP, 2016)
and AS/NZS ISO 31000:2018 – Risk Management Methodology. The bushfire risk assessment
details the likelihood that the proposed new buildings will be exposed to bushfire smoke, ember,
radiant heat and/or flame attack considering the proximity to bushfire prone vegetation and likely
bushfire behaviour.
According to AS/NZS ISO 31000:2018, a ‘hazard’ is defined as a source of potential harm or a
situation with a potential to cause loss, whereas a ‘risk’ is the chance of something happening that
will have an impact on objectives measured in terms of consequences and likelihood. The State
Planning Policy – State Interest Guideline – Natural Hazards, Risk and Resilience (DILGP, April
2016) refers to ‘acceptable risk’, ‘tolerable risk’, and ‘intolerable risk’ which are defined below.
• Acceptable risk
o A risk that, following an understanding of the likelihood and consequences, is
sufficiently low to require no new treatments or actions to reduce risk further.
Individuals and society can live with this risk without feeling the necessity to reduce
the risks any further.
• Tolerable risk
o A risk that, following an understanding of the likelihood and consequences, is low
enough to allow the exposure to continue, and at the same time high enough to
require new treatments or actions to reduce risk. Society can live with this risk but
believe that as much as is reasonably practical should be done to reduce the risks
further.
• Intolerable risk
o A risk that, following an understanding of the likelihood and consequences, is so high
that it requires actions to avoid or reduce the risk. Individuals and society will not
accept this risk and measures are to be put in place to reduce risks to at least a
tolerable level.
5.2 Risk Assessment
The risk attributed to the hazardous vegetation within the assessment area and immediately beyond,
in the absence of additional mitigation measures being implemented, is detailed in Table 2 for Lot
12, Table 3 for Lot 8 and Table 4 for Lot 9.
Table 2 - Risk Assessment - Lot 12
Direction North/East South East West
Approx. minimum
distance to
40m >150m >150m 75m
hazardous
vegetation
VHC’s 8.1 N/A N/A 8.1
Attack Mechanism
Smoke* Not assessed Not assessed Not assessed Not assessed
Ember Intolerable Acceptable Acceptable Intolerable
Radiant Heat Intolerable Acceptable Acceptable Intolerable
Flame Tolerable Acceptable Acceptable Acceptable
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
Table 3 - Risk Assessment - Lot 8
Direction North South/west East North/west
Approx. minimum
distance to
130m 110m 75m 80m
hazardous
vegetation
VHC’s 8.1 8.1 8.1 8.1
Smoke* Not assessed Not assessed Not assessed Not assessed
Ember Acceptable Acceptable Intolerable Intolerable
Radiant Heat Acceptable Acceptable Intolerable Intolerable
Flame Acceptable Acceptable Tolerable Acceptable
Table 4 - Risk Assessment - Lot 9
Direction North South/west East West
Approx. minimum
distance to
65m >150m 80m 75m
hazardous
vegetation
VHC’s 8.1 N/A 8.1 8.1
Attack Mechanism
Smoke* Not assessed Not assessed Not assessed Not assessed
Ember Intolerable Acceptable Intolerable Intolerable
Radiant Heat Intolerable Acceptable Intolerable Intolerable
Flame Acceptable Acceptable Acceptable Acceptable
* Risk of smoke impact has not been assessed. Smoke can travel long distances and exhibit a variety of densities and
composition. It is therefore not readily practicable to determine the separation distances needed to attain the various risk
classes. Furthermore, individuals will react differently to smoke impacts whereas individuals will generally exhibit similar
reactions to direct flame and radiant heat.
All identified ‘Intolerable risk’ assigned to the new buildings is expected to be reduced to at least a
‘Tolerable risk’ where buildings are constructed in accordance with the National Construction Code
2019 (NCC 2019) AS3959:2018 Construction of Buildings in Bushfire Prone Areas requirements.
5.3 Qualitative Risk Discussion
Expansive units of flammable vegetation are located in proximity to the site which have the potential
of facilitating either a direct bushfire front onto the site and/or facilitating advance ember attack and
radiant heat impact to the site. A discussion of the directional risk acting on the buildings associated
with Lots 8, 9 and 12 follows.
5.3.1 North
The VHC 8.1 tall open forest to the north of the proposed building envelopes exposes them to varying
risk of direct flame, radiant heat, ember and spotting impact in the absence of additional mitigation
measures being employed. The degree of separation offered to the VHC 8.1 hazard is the primary
driver of the assigned level of risk and was determined with consideration to the Flamesol modelling
output presented in Section 4.
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah The landscape to the north is dominated by a mosaic of cleared and vegetated rural/rural-residential land and regrowth and remnant vegetation. Remnant vegetation is mapped as containing a RE 12.9- 10.14, RE12.9-10.1 and RE 12.9-10.17 (VHC 8.1) which is attributed a potential fuel load of 35 t/ha and has been assigned a High and Very High Potential Bushfire Intensity class (QFES 2019). The open Eucalypt forest is a highly flammable vegetation type which is positioned in a high-risk burn pathway toward the site, being from the north to north-west. The majority of vegetation to the north is generally located upslope of the site which would reduce the intensity of a wildfire event burning downslope towards the site. A subsequent minor increase in fire intensity may be experienced as a fire breaches the waterway and travels over the inclining slope immediately north of the proposed building areas. The risk of fire impact from the north has been assigned an acceptable risk for Lot 8 due to the extent of separation, and an intolerable to tolerable risk for Lot 12 and Lot 9 which are located <100m of the vegetation. 5.3.2 South The landscape to the south of the site is predominantly cleared of hazardous vegetation precluding small narrow strips associated with road reserves and flanking watercourses. The majority of vegetation to the south of the site is located greater than 150m from the proposed building envelopes. The risk of a fire burning from the south toward the site is generally considered low as such weather conditions are rarely associated with hazardous bushfire weather conditions on the Sunshine Coast. The risk of severe fire developing from the south is constrained by several factors including small patch size, limited corridor width, fuel load fragmentation from the presence of existing clearings, and the low likelihood of a fire developing under southerly winds, which generally facilitate high humidity, cooler land temperatures and rainfall periods. However, fires under drier south-west winds represent greater likelihood of occurrence. The risk of fire impact to each of the proposed building envelopes from the south has been assigned an acceptable risk due to the extent of separation. 5.3.3 East The vegetation located to the east of the site is dominated by RE 12.9-10.14 (Eucalyptus pilularis tall open forest). The risk of a fire burning from east to west toward the site is generally considered low as such weather conditions are rarely associated with hazardous bushfire weather conditions on the Sunshine Coast, notwithstanding immediately preceding prolonged hot and dry weather periods. The risk of severe fire developing from the east is constrained by several factors including fragmentation resulting from the presence of existing clearings for housing and roads, and the low likelihood of a fire developing under easterly winds, which generally facilitate high humidity, cooler land temperatures and rainfall periods. The risk of fire impact from the east has been assigned an acceptable risk for the building envelope within Lot 12 and an intolerable to tolerable risk for the building envelopes within Lots 8 and 9. 5.3.4 West The landscape located to the west/north-west is mapped as containing a moderately large unit of VHC 8.1 which is attributed a potential fuel load of 35t/ha (Leonard et al., 2017) and assigned a High Potential Bushfire Intensity class on flat ground (QFES, 2019). Vegetation to the west to north-west of the site is located within a high-risk fire pathway to the site given the typical high fire danger conditions attributed to north-westerly winds. The vegetation to the west is separated from the proposed building envelopes by approximately 75m of cleared area characterised by open grassland. The risk of fire impact from the west is therefore restricted to an acceptable risk of direct flame contact, and an intolerable risk of ember and radiant heat impact. The risk of grassfire is also noted as inherently present. © 2022 21
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66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
6 BUSHFIRE MANAGEMENT PLAN
6.1 General
The following sections describe bushfire risk reduction measures to be incorporated into the
proposed development to reduce the risk of bushfire impact to people and property commensurate
with the level of bushfire hazard and risk identified herein. Current research indicates that building
construction standard and resident preparedness form the major influence on the volume of human
and property loss as a result of bushfires.
This assessment has been based on the post-development conditions within the site based on the
proposed Plan of Development. Implementation of the identified measures is not implied nor
intended to advocate that occupants remain on the site during a bushfire event, nor that people and
property will be protected from bushfire impact. The measures are intended to reduce the potential
severity of bushfire impact to the development and not prevent bushfire impact.
The scope of referenced management measures herein have been derived from (where applicable):
• Bushfire Hazard Overlay Code. Noosa Plan. Noosa Council;
• Department of State Development, Manufacturing, Infrastructure and Planning’s State
Planning Policy – State interest guidance material – Natural hazards, risk and resilience –
Bushfire (December 2019); and
• Queensland Fire and Emergency Services. (2018). Planning for Bushfire Resilient
Communities.
6.2 Asset Protection Zones
Asset Protection Zones (APZ) provide a defensive tool to assist in the reduction of potential bushfire
impact to people and property situated in bushfire prone areas. For illustrative purposes, Plate 10
depicts the concept of an APZ surrounding a dwelling in a bushfire prone areas.
Plate 10 – Asset Protection Zones
6.2.1 State Planning Policy – State Interest Guidance Material (Natural Hazards, Risks and
Resilience – Bushfire) December 2019
Assessment Benchmark 4 of the State Planning Policy – state interest guidance material states:
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.
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545
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66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
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
or envelope does not exceed 29 kW/m².
Determination of the anticipated radiant heat flux exposure to the proposed building envelopes is
identified in Section 4.
6.2.2 Radiant Heat Flux Setbacks
Determination of the setbacks required to satisfy Assessment Benchmark 4 can be identified from
the quantitative modelling output presented in Section 4 herein. The output results from Plates 8 and
Plate 9 can be used to identify the setback requirements to achieve the <29 kW/m² radiant heat flux
SPP requirement and are summarized in Table 5.
Table 5 – Radiant Heat Flux Setbacks to secure <29kW/m²
Lot No. VHC Direction and slope APZ Setback
(0º)
8 VHC 8.1 North to west (3º) 20.4*
9 VHC 8.1 North to west (3º) 20.4*
12 VHC 8.1 North to east (8º) 25.4*
* Source – Flamesol Minimum Distance calculator
The building envelopes within Lot 8 and Lot 9 are separated from the Very High Potential Bushfire
Intensity area by a minimum of 75m of mowed/grazed grass and therefore have been provided
adequate separation from the hazardous VHC 8.1 open forest to achieve compliance with
Assessment Benchmark 4.
The building envelope within Lot 12 is separated from the Very High Potential Bushfire Intensity area
by a minimum of 39m of mowed/grazed grass and therefore has been provided adequate separation
from the hazardous VHC 8.1 open forest to achieve compliance with Assessment Benchmark 4.
6.2.3 Asset Protection Zone Design
To reduce the potential for bushfire impact to buildings, structures and occupants as a result of future
landscaping, regrowth and fuel load accumulation within the site, the identified APZ setbacks in
Table 5 above are to be established and maintained according to the following criteria:
• APZ’s are maintained as a low threat zone dominated by maintained grass to a nominal
100mm height which is regularly mowed to reduce fuel loads and the risk of a grassfire
encroaching toward the building;
• Any landscaping within the APZ satisfies the low threat vegetation criteria prescribed in
section 2.2.3.2 of AS 3959:2018 or later iterations thereof, where applicable, and be planted
as discrete isolated clumps of low flammability vegetation aligned parallel to the building to
aid in interception of ember and smoke attack and not perpendicular and in a manner which
could transmit fire toward the building;
• No woody mulch is to be used within 2m of buildings;
• No non-rainforest trees are to be planted within 10m of the building and no non-rainforest
tree limbs extend to within 6m of the roof line;
• Future landscaping works/plantings maximise the use of locally indigenous, low flammability
species and or low density plantings of suitable open forest /woodland species with low bark
shedding characteristics. Site managers should consult their local native plant nursery for
suitable species selection; and
• Surface fuels and woody regrowth be controlled in the APZ to maintain a low fuel load
environment. Roof tops, roof gutters and other areas of the building and including ancillary
infrastructure such as garden sheds be regularly inspected, and debris removed to reduce
the risk of spot fires developing in the properties during a bushfire event; and
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Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754
66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
• In accordance with Assessment Benchmark 5 of the SPP Bushfire December 2019, APZ’s
are designed to ensure a potential available fuel load is maintained at less than 8
tonnes/hectare in aggregate and with a fuel structure that remains discontinuous.
6.3 Water Supply
The availability of a reliable water supply for firefighting purposes is a vital tool in the defence of
bushfire impact. The site is not connected to a reticulated water supply. There is no water supply
assessment benchmark under the SPP Bushfire 2019, therefore the provisions of the Noosa Plan
2006 will apply, which require:
• An accessible dam, swimming pool or water tank available for firefighting purposes with an onsite
water volume of not less than 5,000 litres; and
• A water supply outlet pipe 50 millimetres in diameter fitted with a standard fire brigade fitting
(50mm male cam lock) connected to the water supply (other than where the water supply is in a
swimming pool or dam).
6.4 Fire Breaking Trails
The provision of fire breaking trails within a site located in a bushfire prone area offers an important
bushfire defence measure to assist in reducing the risk and severity of bushfire ingress onto and
through a site.
Assessment Benchmark 4 of the State Planning Policy – state interest guidance material states:
Where reconfiguring a lot creating additional lots for the purpose of residential development and a
reticulated water supply is not provided:
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 areas and is designed
and constructed in accordance with the design parameters in Table 4.
To ensure adequate access is available to the interface of bushland within the lots, and to mitigate
unforeseen regrowth on bordering lots, a fire access trail is to be constructed and maintained about
the perimeter of each lot (excluding within proposed covenant areas) which satisfies the design
parameters detailed in Assessment Benchmark 4 Table 4 to the SPP Bushfire 2019, which is
replicated below.
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66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
In addition, where the fire break trail is discontinuous it shall provide:
• a suitable ‘T’ head turnaround area which allows a 3-point turn to be enacted to ensure
vehicles can exit the area in a forward gear.
6.5 Roads and Driveways
The application is for a boundary realignment and no new gazetted roads are proposed. Access to
Lot 12 is to be provided directly from Coveys Road to the south and to Lot 8 and 9 from Tinbeerwah
Road to the east. All building envelopes are located 10m from the boundary and therefore access
driveways are not anticipated to exceed 60m in length. The driveways are located within existing
open areas which are flanked by low threat conditions.
6.6 Landscaping and Regrowth
Existing and future landscaping about the site should avoid increasing the potential for bushfire
hazard. Assessment benchmark 5 of the SPP Bushfire 2019 seeks that the site layout places the
landscape and open spaces within the site between premises and adjacent mapped medium, high
or very high potential bushfire intensity areas. This landscaping and open space comprises
protective landscape treatments that:
1. Comprise only low threat vegetation, including grassland managed in a minimal fuel condition,
maintained lawns, golf courses and cultivated gardens; or
2. Are designed to ensure a potential available fuel load is maintained at less than 8 tonnes/hectare
in aggregate and with a fuel structure that remains discontinuous.
To reduce the potential for bushfire impact to buildings, structures and occupants as a result of future
regrowth and landscaping works within the site, it is recommended:
• Any landscaping within the nominated APZ or fire break trail footprint satisfies Assessment
benchmark 5 of the SPP Bushfire 2019, including the low threat vegetation criteria prescribed
in section 2.2.3.2 of AS 3959:2018 or later iterations thereof, where applicable, and be
planted as discrete isolated clumps of low flammability vegetation aligned parallel the building
to aid in interception of ember and smoke attack and not perpendicular and in a manner
which could transmit fire toward the building;
• No woody mulch is used within 2m of buildings;
• No trees or shrubs are retained within 10m of the buildings;
• Beyond 10m, any trees desired to be retained are to be delimbed to 4m height and no limbs
are to extend to within 6m of the roof line of buildings;
• Future landscaping works/plantings maximise the use of locally indigenous, low flammability
species and or low-density plantings of suitable open forest /woodland species with low bark
shedding characteristics. Landholders should consult their local native plant nursery for
suitable species selection and seek guidance from the SCC Planning Scheme Policy for
Development Works for selection of non-fire promoting vegetation species.
6.7 General Property Maintenance
The undertaking of an appropriate level of property maintenance throughout the year, and in
particular prior to the fire season, can significantly reduce the severity of fire impact upon a site.
Queensland Fire and Emergency Services recommend the following general actions be undertaken
to prepare for the fire season:
Structure
• Clear leaves, twigs, bark and other debris from the roof and gutters.
• Purchase and test the effectiveness of gutter plugs.
• Enclose open areas under decks and floors.
• Install fine steel wire mesh screens on all windows, doors, vents and weep holes.
• Point LPG cylinder relief valves away from the house.
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66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
• Conduct maintenance checks on pumps, generators and water systems.
• Seal all gaps in external roof and wall cladding.
Access
• Display a prominent house or lot number, in case it is required in an emergency.
• Ensure there is adequate access to your property for fire trucks - 4 metres wide by 4 metres
high, with a turn-around area.
Vegetation
• Reduce vegetation loads along the access path.
• Mow your grass regularly.
• Remove excess ground fuels and combustible material (long dry grass, dead leaves and
branches).
• Trim low-lying branches two metres from the ground surrounding your home.
Note the above recommendations are that of QFES and are offered herein for advisory purposes.
They have not been set as recommendations for certification purposes.
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah 7 NOOSA PLAN 2006 7.1 Bushfire Hazard Overlay Code The proposed development is considered assessable development and therefore is assessable against Table 13.9 Bushfire Hazard Areas of Council’s Natural Hazards Overlay Code which has been reproduced as Table 6. © 2022 27
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Table 6 – Table 13.9 Bushfire Hazard Areas – Natural Hazards Overlay Code Noosa Plan 2006
SPECIFIC OUTCOMES PROBABLE SOLUTIONS PROPOSED SOLUTION
13.39 Reconfiguration of a Lot
General
O10 The safety of people and property are S10.1 The proposed lots are not located on PS10 – This Bushfire Hazard Assessment and
maintained by: land that is subject to Medium or High Bushfire Management Plan has been prepared to
Hazard on overlay maps OM1.4-OM9.4; maintain the safety of people and property
a) Locating house site areas and other
from the adverse impacts of bushfire. This
sensitive uses on that part of the land least OR
assessment has determined that the building
affected by the bushfire hazard; and
envelopes are located within the lowest risk
S10.2 The proposed lots are sited on land
b) fire mitigation methods are used that are areas within the site.
determined as low bushfire risk by a site-
adequate for the Potential Bushfire Hazard
specific bushfire hazard assessment.
rating of the individual site, having regard to –
AND
i. vegetation type;
ii. slope; S10.3 Additional lots are not created where Post development the proposed individual
their only vehicular access route is through a allotment access routes shall be flanked by
iii. aspect;
Medium or High Bushfire Hazard area shown cleared areas hence the access routes will
iv. on-site and off-site fire hazard implications on overlay maps OM1.4-OM9.4 exhibit limited risk of being constrained during
of the development; a bushfire.
v. bushfire history;
vi. conservation values of the site; and
vii. ongoing maintenance.
Firebreaks and fire access tracks
O11 Firebreaks or fire access tracks S11.1 Firebreaks are provided by— PS11.1 A fire access trail is to be constructed
provide— and maintained about the perimeter of each
a) a cleared road reserve not less than 20m
lot (excluding within proposed covenant
a) adequate access for firefighting and other wide located around the perimeter of the
areas) which satisfies the design parameters
emergency vehicles; and subdivision, between the created lots and
detailed in Assessment Benchmark 4 Table 4
surrounding vegetated lands;
b) adequate width to minimise the risk of fire
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SPECIFIC OUTCOMES PROBABLE SOLUTIONS PROPOSED SOLUTION
crossover. OR b) fire access tracks (may be in the form to the SPP Bushfire 2019.
of an access easement) between the created
lots and surrounding vegetated lands that—
i. are a minimum cleared width of 6m;
ii. have a formed pavement;
iii. have access at each end and in other
locations where necessary;
iv. have passing areas and turning areas;
v. have clearly identified access points for
emergency vehicles; and
vi. are located on public land or within access
easements that are granted in favour of
Council and the Queensland Fire and Rescue
Service.
Road network
O12 Roads provide for the safe and effective S12.1 Cul-de-sacs or no-through roads are No new roads are proposed. Each of the
evacuation of users of premises and access not used in the street network unless— proposed building envelopes will be accessed
by Emergency services. by short length driveways which are flanked
a) a perimeter road reserve with a minimum
by low threat conditions on grades of less than
reserve width of 20m and a formed width of
12.5%.
not less than 6m is provided; or
b) cul-de-sacs or no-through roads are
provided with fire trails or access easements,
capable of being navigated by conventional
vehicles, that link to through roads (see
Figures 13.3 and 13.4);
AND
S12.2 Roads have a maximum grade of 1 in 8
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66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
SPECIFIC OUTCOMES PROBABLE SOLUTIONS PROPOSED SOLUTION
(12:5%).
Lot design
O13 Lot design and building siting minimises S13.1 Each residential lot—
bushfire hazard to people and property having
a) includes a house site area, identified on the (a) Building envelopes have been nominated
regard to slope, aspect, existing vegetation
plan of subdivision; for all proposed allotments.
and adequate separation from hazardous
vegetation b) is of sufficient size and dimensions to (b) The allotments are of sufficient size and
accommodate a dwelling and ancillary shape to allow for efficient emergency access
buildings and use areas; to buildings for firefighting appliances.
c) for lots more than 2,500m2 — (c) i. Insufficient vegetated slope length will be
present adjacent to the building envelopes
i. conform with the principles for house site
post development to warrant compliance with
numbers 1, 2 or 3 shown in Figure 13.5; and
S13.1 (c)i.
ii. are separated from hazardous vegetation
ii. All allotments are able to be provided with
for a distance the minimum of 1.5 times the
setbacks that enable AS3959 Bushfire Attack
predominant mature canopy height or 10m,
Level 29 construction requirements or lower.
whichever is the greater; and
(d) Not applicable.
d) for lots less than 2,500m2, maximise
separation of buildings from hazardous
vegetation.
S13.2 Residential lots are designed so that Each of the proposed building envelopes will
their size and shape allow for efficient be accessed by short length driveways which
emergency access to buildings for firefighting are flanked by low threat conditions on grades
appliances (e.g. by avoiding long narrow lots of less than 12.5% and represent low risk of
with long access driveways). constraining access and egress in a bushfire
event.
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8 CONCLUSIONS AND CERTIFICATION
8.1 Conclusion
This Bushfire Hazard Assessment and Management Plan has been prepared to support a
proposed reconfiguration of lot development application over Lot 2, 4 & 5 on RP172460 & Lot 7
on RP895754 located respectively at 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah
(herein referred to as ‘the site’). The hazard assessment was undertaken in accordance with the
current QLD benchmark methodology described in Department of Infrastructure, Local
Government and Planning’s Natural Hazards, Risk and Resilience –– Bushfire (December 2019)
State Planning Policy – state interest guidance material, and Queensland Fire and Emergency
Services - (2019) Planning for Bushfire Resilient Communities.
The Local Hazard Map prepared for the assessment has identified the proposed new building
envelopes are affected by a Potential Impact Buffer associated with High Potential Bushfire
Intensity Areas positioned within 100m of the building envelopes.
Numerous bushfire reduction measures have been recommended herein, which if adopted, will
assist in the protection of people and property during a bushfire emergency.
A bushfire risk assessment has been undertaken in general accordance with AS/NZS ISO
31000:2018 – Risk Management Methodology and identified that the tall open forest positioned
within proximity of the proposed building envelopes exposes them to varying levels of direct
flame, ember and radiant heat impact risk in the absence of additional mitigation measures being
employed. The identified risk is anticipated to be reduced to at least a tolerable level for all building
envelopes as a result of the mitigation measures prescribed within this report in combination with
NCC 2019 As3959:2018 construction requirements.
Overall, the development proposed for the site, in combination with recommendations referenced
herein, is deemed acceptable with respect to providing a reasonable level of protection for people
and property within the site.
Bushfire is an extremely serious and often unpredictable phenomenon that requires serious
preparatory planning and decision making to avoid potential damage to infrastructure and or loss
of life. All recommendations made herein have been formulated based on site conditions at the
time of writing and therefore may not be appropriate in the event site conditions change over time.
Implementation of the bushfire mitigation measures referenced herein is not implied nor intended
to advocate that residents remain on the site during a bushfire event nor that people and property
will be protected from bushfire impact. The measures are intended to reduce the potential
severity of bushfire impact to persons and property and not prevent actual bushfire impact.
The landowners and site managers are to be responsible for ensuring the measures prescribed
herein are applied and stay up to date with site conditions and industry standards.
Landholders/managers should therefore liaise with Queensland Fire and Rescue Services at
regular intervals (e.g., recommended at least every 5 years).
The first call in the event of a bushfire emergency should always be ‘000’.
8.2 Certification Matters
The following bushfire mitigation measures are to be certified as satisfactorily completed by the
project Bushfire Consultant prior to commencement of the proposed/approved uses on the site:
• All actionable recommendations set in Section 6 of this report have been implemented
(i.e., APZ’s, fire break trail, landscaping etc.) where practical at the time of certification.
© 2020 31
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah 9 REFERENCES Cruz M.G., Gould J.S., Alexander M.E., Sullivan A.L., McCaw W.L., Matthews S. (2015) A Guide to Rate of Fire Spread Models for Australian Vegetation. CSIRO Land and Water Flagship, Canberra, ACT, and AFAC, Melbourne, Vic, 123pp. Department of Infrastructure, Local Government and Planning (2016a) - State Planning Policy - State Interest Guideline - Natural Hazards, Risk and Resilience Department of Infrastructure, Local Government and Planning (2016b) - State Planning Policy – Natural Hazards, Risk and Resilience -Technical Manual - A ‘fit for purpose’ approach in undertaking natural hazard studies and risk assessments Gould, McCaw, Cheney, Ellis & Matthews. (2007). Field Guide – Fuel assessment and fire behaviour in dry eucalypt open forest. Ensis-CSIRO, Canberra, ACT and Department of Environment and Conservation, Perth, WA. Leonard, J., Newnham, G., Opie, K., and Blanchi, R. (2014). A new methodology for state-wide mapping of bushfire prone areas in Queensland. CSIRO, Australia. NSW Rural Fire Service (2006). Appendix 3 Planning for Bushfire Protection. NSW Government. Queensland Fire and Emergency Services. (2019). Bushfire Resilient Communities - Technical Reference Guide for the State Planning Policy - State Interest Guideline - Natural Hazards, Risk and Resilience 2- Bushfire. Queensland Fire and Emergency Services (2019). SPP-Bushfire-APZ-Width-Calculator.xlsm. Southeast Queensland Fire and Biodiversity Consortium – Operational Manual. The State of Queensland, Department of State Development, Manufacturing, Infrastructure and Planning (2019). Natural hazards, risk and resilience - Bushfire State Planning Policy – state interest guidance material. Webster. (2002). The Complete Bushfire Safety Book. Random House (Aust) Pty Ltd. © 2020 32
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Bushfire Hazard Assessment and Management Plan v2 NCES REF: J000545 Lot 2, 4 & 5 on RP172460 & Lot 7 on RP895754 66, 82 & 98 Coveys Rd & 39 Tinbeerwah Rd, Tinbeerwah APPENDIX 1 – SITE PLAN © 2020 33
Page 36
NOTES
(1) This plan was prepared for the purpose and exclusive use of
KJ SHAW PTY LTD and their other professional advisers and is not
to be used for any other purpose or by any other person or
corporation.
JFP URBAN CONSULTANTS PTY LTD accepts no responsibility for
any loss or damage arising to any person or corporation who may
use or rely on this plan in contravention of these terms.
(2) The title boundaries shown on this plan are from Survey Plan
SP316226.
(3) These notes form an integral part of this plan. If others use this
information, they should be advised of its purpose and limitations.
(4) This plan may not be reproduced unless these notes are
included.
ACCESS
TRACK
ION
VEGETAT
EDGE OF ACCESS
TRACK ON
ATI
OF T
GE ACCESS
VE TRACK
GE
ED
29/11/2021 S:\M2843\AUTOCAD\M2843-01B PROPOSAL PLAN
PROPERTY DESCRIPTION
LOTS 2, 4 & 5 ON RP172460
& LOT 7 ON RP895754
LOCALITY OF TINBEERWAH
NOOSA SHIRE
NORTH: SCALE: ISSUES: TITLE: DETAILS:
JOB NUMBER: PLAN: ISSUE:
N SCALE: @ A3 1:4000
BRISBANE - SUNSHINE COAST - CENTRAL QLD PLANNERS 0 40 80 120 160 200 240 280
PROPOSAL PLAN M2843 01 B
SCALE 1:4000 at (A3) size SHEET:
URBAN DESIGNERS
SUNSHINE COAST
Tower 1, Level 2, 55 Plaza Parade, SURVEYORS
THIS SCALE SHOWN IS ORIGINAL DRAWING SCALE - (A3 SIZE)
KJ SHAW PTY LTD 1 OF 2
DO NOT SCALE FROM THIS DRAWING - USE ONLY DIMENSIONS PROVIDED - IF IN DOUBT PLEASE ENQUIRE FILE:
Maroochydore, Qld 4558
P 07 5450 3900 W www.jfp.com.au ENGINEERS
LANDSCAPE ARCHITECTS
SURVEYED PAH CHECKED AJM DATUM -
B
A
EFFLUENT AREAS ADDED 24-11-2021 TLP 66, 82 & 98 COVEYS ROAD & M2843-01B Proposal Plan.dwg
C O N S U L T A N T S JFP URBAN CONSULTANTS PTY LTD ACN 050 414 045 ORIGINAL ISSUE 23-11-2021 TLP DATE:
DRAWN TLP APPROVED AJM ORIGIN (BM) - ISSUE: DETAILS: DATE: INIT: 39 TINBEERWAH ROAD, TINBEERWAH 24th November, 2021
COPYRIGHT © 2021 JFP URBAN CONSULTANTS PTY LTD. THIS DOCUMENT MAY NOT BE COPIED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS IN PART OR IN WHOLE WITHOUT THE WRITTEN CONSENT OF JFP URBAN CONSULTANTS PTY LTD.
Page 37
NOTES
PROPERTY DESCRIPTION (1) This plan was prepared for the purpose and exclusive use of
KJ SHAW PTY LTD and their other professional advisers and is not
LOTS 2, 4 & 5 ON RP172460 to be used for any other purpose or by any other person or
& LOT 7 ON RP895754 corporation.
JFP URBAN CONSULTANTS PTY LTD accepts no responsibility for
LOCALITY OF TINBEERWAH any loss or damage arising to any person or corporation who may
NOOSA SHIRE use or rely on this plan in contravention of these terms.
(2) The title boundaries shown on this plan are from Survey Plan
SP316226.
ON
TI (3) These notes form an integral part of this plan. If others use this
E TA
EG information, they should be advised of its purpose and limitations.
V
OF
10
10.0
(4) This plan may not be reproduced unless these notes are
0.
ED G GE EFFLUENT included.
ED
75
E O
.
F DISPOSAL
0
VEGETATION AREA BUILDING
ENVELOPE
10
0.
75
10
.0
10.0
.0
10.0
EFFLUENT
DISPOSAL AREA
BUILDING
ENVELOPE
10
.0
10.0
EFFLUENT
DISPOSAL
AREA
0
10.
10.0
ENV DING
E
ELOP
BUIL
10.0
.0
10
10.0
29/11/2021 S:\M2843\AUTOCAD\M2843-01B PROPOSAL PLAN
NORTH: SCALE: ISSUES: TITLE: DETAILS:
JOB NUMBER: PLAN: ISSUE:
N SCALE: @ A3 1:2000
BRISBANE - SUNSHINE COAST - CENTRAL QLD PLANNERS 0 20 40 60 80 100 120 140
PROPOSAL PLAN M2843 01 B
SCALE 1:2000 at (A3) size SHEET:
URBAN DESIGNERS
SUNSHINE COAST
Tower 1, Level 2, 55 Plaza Parade, SURVEYORS
THIS SCALE SHOWN IS ORIGINAL DRAWING SCALE - (A3 SIZE)
KJ SHAW PTY LTD 2 OF 2
DO NOT SCALE FROM THIS DRAWING - USE ONLY DIMENSIONS PROVIDED - IF IN DOUBT PLEASE ENQUIRE FILE:
Maroochydore, Qld 4558
P 07 5450 3900 W www.jfp.com.au ENGINEERS
LANDSCAPE ARCHITECTS
SURVEYED PAH CHECKED AJM DATUM -
B
A
EFFLUENT AREAS ADDED 24-11-2021 TLP 66, 82 & 98 COVEYS ROAD & M2843-01B Proposal Plan.dwg
C O N S U L T A N T S JFP URBAN CONSULTANTS PTY LTD ACN 050 414 045 ORIGINAL ISSUE 23-11-2021 TLP DATE:
DRAWN TLP APPROVED AJM ORIGIN (BM) - ISSUE: DETAILS: DATE: INIT: 39 TINBEERWAH ROAD, TINBEERWAH 24th November, 2021
COPYRIGHT © 2021 JFP URBAN CONSULTANTS PTY LTD. THIS DOCUMENT MAY NOT BE COPIED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS IN PART OR IN WHOLE WITHOUT THE WRITTEN CONSENT OF JFP URBAN CONSULTANTS PTY LTD.