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Flood Impact Assessment
Recycle and Transfer Station Centre
561 Noosa-Eumundi Rd, Doonan
Noosa Shire Council
covey.com.au
Reference: 244035/M25-0045Rpt Issue A
February 2025
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Page 2
Report Review
Document No. Revision Prepared By Reviewed By Date Issued
M25-0445Rpt Issue A Allister Gaffney Terry Lucke February 2025
Report Distribution
Document Revision Method of Delivery Issued To
M25-0445Rpt Issue A Electronic Noosa Shire Council
© Copyright Covey Associates Pty Ltd (2025).
This document is the property of Covey Associates Pty Ltd. This document and the information contained in
it are solely for the use of the authorised recipient and this document may not be used, copies of reproduced
in whole or part for any purpose other than that for which it was supplied by Covey Associates Pty Ltd. Covey
Associates Pty Ltd makes no representation, undertakes no duty and accepts no responsibility to any third
party who may use or rely upon this document or the information contained in it.
COPYRIGHT NOTICE: Parts of this document contain material originally prepared by:
This material is the intellectual property and copyright of Covey Associates Pty Ltd.
AGaffney Terry Lucke
Author: Allister Gaffney Review: Dr Terry Lucke
Senior Water Resource Engineer Senior Engineer
BEng (Civil), MEng, RPEng, RPEQ 24345 PhD, FIEAust, CPEng, RPEQ, NER
Page 3
CONTENTS
1.0 INTRODUCTION 1
2.0 SITE DESCRIPTION 1
2.1 Site Location 1
2.2 Existing Land-use, Topography and Drainage 2
2.3 Proposed Land-use 2
3.0 FLOOD IMPACT ASSESSMENT 3
3.1 Flood Modelling 3
3.2 Hydrology 3
3.3 Temporal Patterns and Rainfall Intensity 4
3.4 Rainfall Durations 4
3.5 Rainfall Losses 4
3.6 Pre-Burst Rainfall 4
3.7 Areal Reduction Factor 4
3.8 Manning’s n Values 5
3.9 Fraction Impervious 5
3.10 Topography 5
3.11 Grid Cell Size 6
3.12 Tailwater Conditions 6
3.13 Hydraulic Structures 6
3.14 Developed Case Scenario 9
3.15 Results 9
4.0 CONCLUSION 11
5.0 REFERENCES 11
APPENDIX DESCRIPTION
Appendix A Site Plans
Appendix B Mannings ‘N Roughness Coefficient Maps
Appendix C Flood Maps
Page 4
1.0 INTRODUCTION
This Flood Impact Assessment has been prepared to quantify the overland flow flood impacts for the proposed
development at 561 Noosa-Eumundi Rd, Doonan. It will ensure appropriate methods and designs are implemented to
suitably mitigate overland flow risks and/or flood hazards and will provide information and guidance to support the
outcomes required by Noosa Shire Council (NSC). NSC requires that stormwater runoff be appropriately managed prior
to discharge from the site.
The development application is for a Recycle and Transfer Station Centre and associated infrastructure (e.g., roads,
carparks, etc.) to support this use. Refer to the site plans in Appendix A for further detail. The engineering plans are
current at the time of writing this report, if the plans are changed it is recommended that the plans be provided to
Covey Associates for reassessment.
This FIA describes the flooding characteristics of the proposed development site under existing and proposed
conditions to understand what impact, if any, the proposed development will have on the existing flooding regime
within the site and surrounding properties.
2.0 SITE DESCRIPTION
2.1 Site Location
The sites real property description is Lot 77 SP298776. The total area of the site is approximately 192 ha. The area of
work is approximately 3 ha. Refer to Figure 2-1 for further detail.
Figure 2-1 Site Locality (Image Courtesy of Nearmap)
Noosa Shire Council 1
M25-0045Rpt – 244035– February 2025
Page 5
2.2 Existing Land-use, Topography and Drainage
The site in its existing state is the Noosa Resource Recovery Centre which is mainly covered with maintained bushland
in the northern portion of the site and existing buildings and land fill areas in the southern portion. The site is
surrounded by bushland to the east, west and south. There are residential lots and a golf course to the north.
The site slope is approximately 1.5%, with gradual changes in elevation from 30 m AHD to 16 m AHD. The site slopes
from south to north and discharges over the northern boundary to the northern road reserve before flowing through
the golf course. Note that the site also has an external upstream catchment to the south which has been considered
in the assessment.
2.3 Proposed Land-use
The development is a Recycle and Transfer Station Centre and associated infrastructure which is replacing the Solid
Waste Depot and Reviva Noosa Reuse Shop buildings. Refer to Figure 2-2.
Earthworks have been proposed to accommodate the development of the site and to facilitate efficient drainage.
Appropriate drainage infrastructure has been proposed in the design, including overland flow swales to discharge local
flows from the site and to convey runoff from external catchments around the site
Figure 2-2 Proposed Development
Noosa Shire Council 2
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3.0 FLOOD IMPACT ASSESSMENT
3.1 Flood Modelling
Flood modelling of the site was undertaken using TUFLOW, a 1D/2D hydraulic modelling software package, to ensure
stormwater flows from upstream catchments external to the site can be conveyed through the site and to demonstrate
that no unacceptable impacts will occur on surrounding properties as a result of the proposed development.
Scenarios modelled as part of this investigation include:
• Existing Case Scenario – modelling the undeveloped conditions.
• Developed Case Scenario – modelling the site with an updated Digital Elevation Model (DEM), upgraded
hydraulic structure at the road crossing the large clean water drain and updated Manning’s roughness
coefficients and soil infiltration rates to represent the proposed development layout.
Modelling was undertaken for the 50%, 10% and 1% and 1% climate change Annual Exceedance Probability (AEP)
events.
3.2 Hydrology
A “Rain on Grid” modelling approach was adopted for this overland flow study and as such, no traditional hydrological
modelling was required. The total catchment area adopted for this assessment was approximately 287 ha. Refer to
Figure 3-1 for the overall extent of the 2D flood model and the quadtree extent for the model. This is discussed further
in Section 3.11.
Figure 3-1 Model Extent with 1m Contours
Noosa Shire Council 3
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3.3 Temporal Patterns and Rainfall Intensity
Temporal patterns are based on Australian Rainfall and Runoff (ARR) 2019 Ensemble Storm Temporal Patterns and
have been sourced directly from ARR data hub. Rainfall intensities are typical for this area and have been sourced
directly from the Bureau of Meteorology (BOM).
3.4 Rainfall Durations
Initially, flood modelling was undertaken for all rainfall durations ranging from 10 minutes to 360 minutes. This range
of durations was simulated to ensure the critical durations for the catchment were captured. From reviewing the
results, it was determined that the critical durations experienced at the proposed development site and immediately
surrounding the site ranged from 20 minutes up to 120 minutes and therefore these were the durations adopted for
this analysis.
3.5 Rainfall Losses
Adopted rainfall losses were sourced from ARR Data Hub. Rainfall losses for this region are as follows:
• Initial Losses – 27 mm; and
• Continuing Losses – 2.6 mm/hr.
3.6 Pre-Burst Rainfall
Rainfall losses adopted for the model are for complete storms. As such, pre-burst depths have been subtracted from
the adopted initial losses to get the correct storm burst initial losses.
From a review of the median and 75% pre-burst depths, it was concluded that the median pre-burst depths were not
appropriate for this investigation, particularly given that the outcome of this investigation will determine minimum
floor levels for residential properties. As such, adopting the 75% pre burst depths was considered more appropriate
for this investigation.
3.7 Areal Reduction Factor
ARR 2019 guidelines recommend adopting Areal Reduction Factors (ARFs) for catchments greater than 1 km2. Given
that the associated catchment area modelled as part of this simulation is approximately 2.87 km2, ARFs were adopted
for this analysis. Refer to Table 3-1 for adopted ARFs.
Table 3-1 – Areal Reduction Factors
Dur AEP (%)
(min) 50 10 1
20 0.975 0.973 0.970
25 0.978 0.976 0.973
30 0.980 0.978 0.974
45 0.984 0.981 0.978
60 0.986 0.983 0.979
90 0.989 0.986 0.981
120 0.991 0.987 0.981
Noosa Shire Council 4
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3.8 Manning’s n Values
Manning’s n roughness coefficient’s have been manually delineated for the entire contributing catchment. Refer to
Appendix B for the Manning’s Roughness Coefficient Maps. Land uses and corresponding manning’s roughness
coefficients for the hydraulic model are as follows:
• 0.018 – Roads
• 0.075 – Trees / Bushland
• 0.05 – Grassland
• 0.3 – Roof
• 0.03 – Unsealed road
• 0.015 – Water body
3.9 Fraction Impervious
The fraction impervious values adopted for each land use are as follows:
• Roads – 100%
• Trees / Bushland - 0%
• Grassland – 0%
• Roof– 100%
• Unsealed road – 50%
• Water body – 100%
3.10 Topography
Topography for the full extent of the 2D hydraulic model was created using 2015/2023 LIDAR and survey within the
development site. The existing surface topography is shown in Figure 3-2.
It is important to note that Council plans to construct an earthworks pad on the area to the east (labelled as RRA Pad).
Further, the existing HES Basin is being relocated to the north-western corner of the pad. As requested by Council,
the RRA Pad and relocated HES basin has been assumed to be present in the both the existing and developed case
scenarios for modelling purposes.
Figure 3-2 Existing Site Topography with 0.5m contours
Noosa Shire Council 5
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Page 9
3.11 Grid Cell Size
A 16-metre hydraulic grid cell size was adopted for the model generally. A one metres hydraulic grid cell size was adopted
for the area of work within the site and a four to eight-metre grid cell size for the surrounding areas using the TUFLOW
Quadtree add on which precisely simulates hydraulics of stormwater runoff within the area of interest. Refer to Figure 3-1
for the Quadtree extent.
The adopted hydraulic grid cell sizes have been deemed sufficient to accurately represent flood flows and levels throughout
the hydraulic model.
3.12 Tailwater Conditions
A tailwater condition with an average downstream slope of 0.5% has been adopted at the outlet of the hydraulic
model. The downstream boundary of the model is approximately 500 m downstream from the outlet of the site. This
ensures negligible influence from the downstream tailwater condition.
3.13 Hydraulic Structures
Hydraulic structures adopted for this assessment have been modelled as 1D elements in the hydraulic model. All 1D element
locations are shown in Figure 3-3, Figure 3-4 and Figure 3-5.
The existing culvert information (e.g., size, length, material and invert levels) was based on available survey information.
However, the survey information for the culverts on Eumundi-Noosa Rd and Emu Mountain Rd only included downstream
invert levels. Therefore, the upstream invert levels were estimated by assuming a culvert grade of approximately 0.5%. If
there are any major discrepancies it is recommended that the culverts be surveyed and the information provided to Covey
Associates for determination.
The proposed culvert information was based on the engineer plans as shown in Appendix A. Refer to Table 3-2 for further
details of the existing hydraulic structures. Refer to Table 3-3 for further details on the developed hydraulic structures.
The 1D elements included a 30% blockage factor in accordance with QUDM (2017) and a Manning’s n of 0.013 was applied.
The hydraulic model did not include on-site detention tanks.
Figure 3-3 Hydraulic Structure Locations – North
Noosa Shire Council 6
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Figure 3-4 Hydraulic Structure Locations – South
Figure 3-5 Hydraulic Structure Locations – East
Noosa Shire Council 7
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Page 11
Table 3-2 Existing Hydraulic Structures
Type Upstream Downstream
Invert Level Invert Level Size No. of Length
ID C=circular
(m AHD) (m AHD) (mm) Pipes (m)
R=box culvert
A01 C 15.464 15.262 600 1 17.3
B1 C 15.538 15.291 600 2 12.3
C1 C 15.526 15.394 600 1 11.9
D1 C 12.972 12.574 450 4 12.3
E1 C 14.185 12.849 450 1 26.2
G1 C 13.393 13.363 500 1 9.7
G2 C 13.716 13.652 450 1 4.7
T1 C 20.05 19.86 600 1 30.8
T2 C 21.384 21.234 525 1 14.5
T3 C 18.722 18.572 900 2 31.1
T4 R 18.41 18.262 900x300 1 13.9
T5 C 18.033 17.883 375 1 12.7
T6 C 17.164 17.014 375 1 19.2
T7 C 15.15 14.993 375 1 12.0
T11 C 23.05 22.899 450 2 16.3
T12 C 23.156 23.589 500 1 12.6
T13 C 23.84 23.59 375 1 7.3
H1 R 16.798 16.735 1200x400 1 14.8
Table 3-3 Developed Hydraulic Structures
Type Upstream Downstream
No. of Length
ID C=circular Invert Level Invert Level Size (mm)
Pipes (m)
R=box culvert (m AHD) (m AHD)
DEV01 R 12.25 12.20 2100x1500 6 9.9
Noosa Shire Council 8
M25-0045Rpt – 244035– February 2025
Page 12
3.14 Developed Case Scenario
The changes to the developed case scenario included:
• A design TIN to represent finished elevation levels for the proposed development site. Refer to Figure 3-6
for developed case topography adopted for the model;
• Added a set of culverts for the road crossing at the existing clean water drain as detailed in Section 3.13;
• Update the impervious area to represent the proposed development site; and
• Updated Manning’s ‘n’ roughness coefficients and soil infiltration rates based on values shown in
developed model Manning’s maps in Appendix B.
Figure 3-6 Developed Site Topography with 0.5m contours
3.15 Results
Results from all modelled scenarios were exported and peak water surface levels, depths, velocities and hazards have
been mapped to demonstrate conveyance within the overland flow paths. A comparison between the existing and
developed peak water surface levels, velocities and hazards was undertaken and all scenarios were mapped to ensure
no unacceptable offsite impacts were experienced and ensure risk and flood hazard will be appropriately managed.
Refer to the Flood Maps in Appendix C for further detail.
Generally, it was demonstrated that the existing and developed overland flow paths have an adequate conveyance of
overland flow from upstream external catchments for all simulated events. In the developed scenario, during the 1%
AEP climate change event, the water surface level on the western internal roadways increased between 50 – 100 mm.
However, this flow is safely conveyed through the site without inundating the proposed buildings and discharges to
the channel to the east (clean water channel). In addition, the hazard (depth x velocity) on the internal roads is
acceptable (< 0.6 m2/s).
An increase of water level greater than 100 mm is noted immediately upstream of the proposed culverts (DEV01). This
is expected as the proposed road crossing the channel will cause head loss at this location as the flow enters the
culverts. Further upstream in the channel the water surface level decreased by up to 50 mm due to the inclusion of
the culverts. The results also demonstrated that the road crossing has an immunity up to the 1% AEP climate change
event.
Noosa Shire Council 9
M25-0045Rpt – 244035– February 2025
Page 13
The flood mapping demonstrated that there were no offsite increases in peak water surface level, depth, velocity or
hazard as a result of the proposed development. Further, as the proposed development area (2.24 ha) is much smaller
than the overall catchment (287 ha), the minor increase in the fraction impervious has a negligible effect on the overall
catchment peak discharges, as demonstrated by the flood mapping. Further, as the proposed development has a
fraction impervious higher than the overall catchment and is located closer to the downstream boundary (outlet) the
peak discharge will arrive at the outlet much sooner than the overall catchment. Therefore, no detention is required
for the proposed development.
Based on a review of the results shown in the flood maps in Appendix C, it can be concluded that the proposed
development will not create a nuisance or interfere with the use or enjoyment of any land surrounding the proposed
development site.
Noosa Shire Council 10
M25-0045Rpt – 244035– February 2025
Page 14
4.0 CONCLUSION
Covey Associates has been engaged by Noosa Council to provide a Flood Impact Assessment for a Recycle and Transfer
Station Centre and associated infrastructure at 561 Noosa-Eumundi Rd, Doonan.
Ensemble storm hydraulic (TUFLOW) flood modelling in accordance with ARR 2019 guidelines was undertaken for
existing and developed case scenarios for the 50%, 10%, 1% and 1% climate change Annual Exceedance Probability
(AEP) events.
The flood mapping demonstrated that generally the on-site overland flow paths adequately conveyed both internal
and external catchment flows. Further, as a result of the proposed development, there is a negligible change in peak
water level, depth, velocity and hazard on the surrounding properties for all modelled AEPs.
Through this assessment, it has been demonstrated that the proposed development and associated infrastructure will
not result in any actionable nuisance to any of the surrounding properties or infrastructure with regards to overland
flow. Further, based on the results of this study, on-site detention is not required for the development.
Sufficient consideration of stormwater water quantity controls has been demonstrated by:
• Compliance with the requirements of the Noosa Plan (2020);
• Queensland State Planning Policy (2017); and
• Compliance with QUDM (2017).
5.0 References
Department of State Development, Infrastructure and Planning (2017) State Planning Policy. Brisbane, Queensland.
Institute of Public Works Engineering Australia, Queensland Division Ltd (2017) Queensland Urban Drainage Manual,
Fourth Edition.
Noosa Shire Council (2020) Noosa Plan
Noosa Shire Council 11
M25-0045Rpt – 244035– February 2025
Page 15
APPENDIX A SITE PLANS
Page 16
IT IS THE RESPONSIBILITY OF THE
EXISTING 6.0 m DOUBLE
LEGEND GATE ENTRANCE 7 x CARPARKING BAYS
(5.4 m x 2.6 m)
CONTRACTOR TO CONTACT THE RELEVANT
AUTHORITIES TO CONFIRM THE LOCATION OF
ALL EXISTING SERVICES PRIOR TO THE
EXISTING CONTOURS 3.0
COMMENCEMENT OF EXCAVATION
EXISTING PAVEMENT
5.4
PROPOSED EDGE OF BITUMEN
PROPOSED PAVEMENT WIDENING
2.6
PROPOSED LANDSCAPING
PROPOSED DRIVEWAY (ARCHITECT)
PROPOSED DESIGN (ARCHITECT) MATCH EXISTING 6.6 m CARRIAGEWAY
(3.0 m LANE + 0.3 m SHOULDER)
CLEANAWAY DEPOT
4 x CARPARKING BAYS
(5.4 m x 2.6 m)
SECURITY GATE SECURITY GATE
8.0 m SECURITY GATE
ACCESS UNDER DIRECTION ONLY
4.0
5.4
4.0
2.6
3.0
3.5
DELIVERY / COLLECTION ZONE
INDICATIVE BIO-BASIN LOCATION,
CIRCULATING CARRIAGEWAY GRADES
TOWARDS BASINS
10.8 5.4
[NOM. 21.5 m² FILTER AREA]
2.6
2.6
TRANSFER STATION BUILDING
[NOM. FFL RL 15.500] 5.4 5.4 7 x CARPARKING BAYS
4.5
(5.4 m x 2.6 m)
MIN.
2.6
REVIVA CENTRE
JOINS SHEET C202
[NOM. FFL RL 15.100]
8.0 8.0
INDICATIVE BIO-BASIN LOCATION,
EXIT CARRIAGEWAY FOR STAFF AND CIRCULATING CARRIAGEWAY GRADES
MRV (8.8 m) TRUCKS TOWARDS BASINS
[NOM. 21.5 m² FILTER AREA]
10.0
REVIVA SALES YARD
DROP OFF / PICK UP ZONE
FORKLIFT ACCESS ONLY
(NO PUBLIC USE)
JOINS SHEET C202
MATCH EXISTING 6.6 m CARRIAGEWAY
(3.0 m LANE + 0.3 m SHOULDER)
INDICATIVE BIO-BASIN LOCATION
[NOM. 92.0 m² FILTER AREA] EXISTING BIO-BASIN LOCATION TO
BE RETAINED AND UTILISED FOR
PROPOSED WORKS
GATE
[NOM. 92.0 m² FILTER AREA]
8.0 m SECURITY GATE
SECURITY
ACCESS UNDER DIRECTION ONLY
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
SCALE 1:250 (A1) - 1:500 (A3) the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
JOINS SHEET C202 contractor prior to commencement of works.
Approved
Checked - CJT Drawing title - Project - DOONAN RESOURCE Site - Project No. 244035 Sheet No. C201
Design - CJT Drawn - CJT
GENERAL ARRANGEMENT SHEET 1 RECOVERY REDEVELOPMENT 561 EUMUNDI-NOOSA ROAD, Digital Ref : C200 SITE LAYOUTS Issue : A
Scales - AS SHOWN COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
NOOSA SHIRE COUNCIL DOONAN This Document is copyright and shall not be copied
A 10.02.2025 PRELIMINARY ISSUE CJT
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12DSERVER\244035_3605\Design (Covey)\Drawings - Concept Design\Uncontrolled\C200 SITE LAYOUTS.dwg Plot 11 February 2025 - 8:55 PM
Page 17
JOINS SHEET C201
IT IS THE RESPONSIBILITY OF THE
CONTRACTOR TO CONTACT THE RELEVANT
AUTHORITIES TO CONFIRM THE LOCATION OF
ALL EXISTING SERVICES PRIOR TO THE
COMMENCEMENT OF EXCAVATION
PUBLIC ACCESS TO RESOURCE RECOVERY
3.0
WASTE VEHICLE ACCESS ONLY
3.5
DELIVERY / COLLECTION ZONE
JOINS SHEET C201
7.0
PUBLIC ACCESS
TO RESOURCE
RECOVERY
TRANSFER STATION BUILDING
[NOM. FFL RL 15.500]
DRIVE THRU RESOURCE
5.0
12.0 (4 x 3.0 m LANES)
WASTE
SORTING AREA
VEHICLES
ONLY
LOWER HARDSTAND AND RESOURCE RECOVERY BIN PAD
WASTE AND STAFF VEHICLE ACCESS ONLY
22 x CARPARKING BAYS
(5.4 m x 2.6 m)
2.6
5.4
INDICATIVE BIO-BASIN LOCATION
[NOM. 94.0 m² FILTER AREA]
JOINS SHEET C203
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
SCALE 1:250 (A1) - 1:500 (A3) the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
JOINS SHEET C203 contractor prior to commencement of works.
Approved
Checked - CJT Drawing title - Project - DOONAN RESOURCE Site - Project No. 244035 Sheet No. C202
Design - CJT Drawn - CJT
GENERAL ARRANGEMENT SHEET 2 RECOVERY REDEVELOPMENT 561 EUMUNDI-NOOSA ROAD, Digital Ref : C200 SITE LAYOUTS Issue : A
Scales - AS SHOWN COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
NOOSA SHIRE COUNCIL DOONAN This Document is copyright and shall not be copied
A 10.02.2025 PRELIMINARY ISSUE CJT
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12DSERVER\244035_3605\Design (Covey)\Drawings - Concept Design\Uncontrolled\C200 SITE LAYOUTS.dwg Plot 11 February 2025 - 8:55 PM
Page 18
IT IS THE RESPONSIBILITY OF THE
CONTRACTOR TO CONTACT THE RELEVANT
AUTHORITIES TO CONFIRM THE LOCATION OF
ALL EXISTING SERVICES PRIOR TO THE
COMMENCEMENT OF EXCAVATION
BULK EARTHWORKS NOTES
1. STRIP ALL TOPSOIL CONTAINING ORGANIC MATTER TO A DEPTH OF
100mm AND SPOIL TO SUITABLE STOCKPILE AREA. REMOVE RUBBLE
MATERIAL, OVERSATURATED MATERIALS, ORGANIC MATTER AND
OTHER UNSUITABLE MATERIAL FROM THE SITE.
2. EARTHWORKS ON ALLOTMENTS SHALL BE CARRIED OUT IN
ACCORDANCE WITH AUSTRALIAN STANDARDS AS3798 - GUIDELINES
ON EARTHWORKS FOR COMMERCIAL AND RESIDENTIAL
DEVELOPMENTS - COMPACTION TO 95% STANDARD (AS1289E1.1).
3. SIMILARLY, SUBGRADE COMPACTION TO 98% STANDARD
(AS1289E1.1). REMOVE ANY SOFT OR COMPRESSIBLE ZONES AND
SHEET C302 REPLACE WITH SUITABLE MATERIAL.
4. SUPERVISION, INSPECTION & TESTING SHALL BE CARRIED OUT TO
LEVEL 1 STANDARD U.N.O. FREQUENCY OF COMPACTION TESTS ARE
AS FOLLOWS:
LOCATION FREQUENCY
17 16
FINISHED LEVEL OR ROAD SUBGRADE (IN
1 per 100 m
CUT OR FILL)
ALLOTMENT FILL WHERE DEPTH 300 - 500mm 1 per LOT
SHEET C301 ALLOTMENT FILL WHERE DEPTH > 500mm 1 per LOT/500mm
16
LEVEL OF INSPECTION FOR ALLOTMENT FILL LEVEL 1
16
5. QUALITY TESTS OF IMPORTED MATERIAL ARE REQUIRED AT A RATE
OF 1 TEST PER 400 cu m OR PART THEREOF.
16
15
6. IMPORTED FILL MATERIAL SHALL BE LOW PLASTICITY GRANULAR
FILLING. PLACE FILL TO THE BUILDING PLATFORM AREAS IN LAYERS
OF LOOSE THICKNESS APPROPRIATE TO THE TYPE OF MACHINERY
15
BEING USED AND NOT GREATER THAN 250mm. ANY UNSUITABLE
16 MATERIAL SHALL BE IDENTIFIED, REMOVE AND REPLACE AS
15
SPECIFIED.
16
7. ALL TESTING OF EARTHWORKS SHALL BE CARRIED OUT AT THE
16
CONTRACTORS EXPENSE UNLESS NOTED OTHERWISE.
STOCKPILE NOTE
16
1. STOCKPILES OF CONSTRUCTION AND LANDSCAPING MATERIALS,
AND OTHER SITE DEBRIS, SHALL BE LOCATED CLEAR FROM ANY
POSITION FROM WHICH IT COULD BE WASHED ONTO ANY FOOTPATH,
15
15 NATURE STRIP, ROADWAY, OR INTO ANY DRAIN OR WATERCOURSE.
16
APPROXIMATE CUT/FILL VOLUMES
15 1. INCLUDES ALL QUANTITIES BETWEEN EXISTING (LESS 150) AND
FINISHED SURFACES (LESS 150). PAVING BOXING QUANTITY (300 DEEP)
NOT INCLUDED.
16
TOTAL CUT XXX.XXXm3
15
TOTAL FILL XXX.XXXm3
BULK EARTHWORKS LEGEND (100mm INC.)
14
15
CUT FILL
PROPOSED EARTHWORKS 0.00 - 0.10m
14
PROPOSED EARTHWORKS 0.10 - 0.20m
PROPOSED EARTHWORKS 0.20 - 0.30m
PROPOSED EARTHWORKS 0.30 - 0.40m
PROPOSED EARTHWORKS 0.40 - 0.50m
PROPOSED EARTHWORKS 0.50 - 0.60m
PROPOSED EARTHWORKS > 0.60m
15
EXISTING CONTOURS 3.0
DESIGN CONTOURS 3.0
SCALE 1:500 (A1) - 1:1000 (A3)
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
contractor prior to commencement of works.
Approved
Checked - CJT Drawing title - Project - DOONAN WASTE TRANSFER Site - Project No. 244035 Sheet No. C300
Design - JIC Drawn - JIC
BULK EARTHWORKS OVERVIEW STATION - TRAFFIC CONCEPT 561 EUMUNDI-NOOSA ROAD, Digital Ref : C300 BULK EARTHWORKS Issue : B
Scales - AS SHOWN B 20/12/24 PRELIMINARY JIC COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
NOOSA SHIRE COUNCIL DOONAN This Document is copyright and shall not be copied
A 28/11/24 PRELIMINARY JIC
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12dserver\244035_3605\design (covey)\drawings - concept design\uncontrolled\C300 BULK EARTHWORKS.dwg Plot 12 February 2025 - 11:09 AM
Page 19
16
IT IS THE RESPONSIBILITY OF THE
CONTRACTOR TO CONTACT THE RELEVANT
AUTHORITIES TO CONFIRM THE LOCATION OF
ALL EXISTING SERVICES PRIOR TO THE
COMMENCEMENT OF EXCAVATION
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16
16
16
15
16
15
16
15
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BULK EARTHWORKS LEGEND (100mm INC.)
CUT FILL
PROPOSED EARTHWORKS 0.00 - 0.10m
PROPOSED EARTHWORKS 0.10 - 0.20m
PROPOSED EARTHWORKS 0.20 - 0.30m
PROPOSED EARTHWORKS 0.30 - 0.40m
PROPOSED EARTHWORKS 0.40 - 0.50m
PROPOSED EARTHWORKS 0.50 - 0.60m
PROPOSED EARTHWORKS > 0.60m
15
EXISTING CONTOURS 3.0
DESIGN CONTOURS 3.0
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
SCALE 1:250 (A1) - 1:500 (A3) the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
contractor prior to commencement of works.
Approved
Checked - CJT Drawing title - Project - DOONAN RESOURCE Site - Project No. 244035 Sheet No. C301
Design - CJT Drawn - CJT
BULK EARTHWORKS SHEET 1 RECOVERY REDEVELOPMENT 561 EUMUNDI-NOOSA ROAD, Digital Ref : C300 BULK EARTHWORKS Issue : A
Scales - AS SHOWN COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
NOOSA SHIRE COUNCIL DOONAN This Document is copyright and shall not be copied
A 10.02.2025 PRELIMINARY ISSUE CJT
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12dserver\244035_3605\design (covey)\drawings - concept design\uncontrolled\C300 BULK EARTHWORKS.dwg Plot 12 February 2025 - 11:09 AM
Page 20
IT IS THE RESPONSIBILITY OF THE
CONTRACTOR TO CONTACT THE RELEVANT
AUTHORITIES TO CONFIRM THE LOCATION OF
ALL EXISTING SERVICES PRIOR TO THE
COMMENCEMENT OF EXCAVATION
17 16
16
16
16
15
15
15
15
15
BULK EARTHWORKS LEGEND (100mm INC.)
CUT FILL
PROPOSED EARTHWORKS 0.00 - 0.10m
PROPOSED EARTHWORKS 0.10 - 0.20m
PROPOSED EARTHWORKS 0.20 - 0.30m
PROPOSED EARTHWORKS 0.30 - 0.40m
PROPOSED EARTHWORKS 0.40 - 0.50m
PROPOSED EARTHWORKS 0.50 - 0.60m
PROPOSED EARTHWORKS > 0.60m
EXISTING CONTOURS 3.0
DESIGN CONTOURS 3.0
Check all dimensions before commencement of work.
Check Site boundary dimensions from the Title plans
Check Building Boundary clearances by set out.
Notwithstanding the information supplied on this drawing,
SCALE 1:250 (A1) - 1:500 (A3) the location, depth and extent of underground or overhead
services are to be confirmed and protected on site by the
JOINS SHEET C202 contractor prior to commencement of works.
Approved
Checked - CJT Drawing title - Project - DOONAN RESOURCE Site - Project No. 244035 Sheet No. C302
Design - CJT Drawn - CJT
BULK EARTHWORKS SHEET 2 RECOVERY REDEVELOPMENT 561 EUMUNDI-NOOSA ROAD, Digital Ref : C300 BULK EARTHWORKS Issue : A
Scales - AS SHOWN COVEY ASSOCIATES PTY LTD 124 DUPORTH AVENUE Client -
NOOSA SHIRE COUNCIL DOONAN This Document is copyright and shall not be copied
A 10.02.2025 PRELIMINARY ISSUE CJT
ABN 59 137 305 992 PO BOX 16 without written approval, nor shall it be used except
Document Stage - PRELIMINARY (07) 5443 7777 MAROOCHYDORE QLD 4558 for the Development and the Site Specified.
Issue Date Description By [email protected]
c:\12dS\data\12dserver\244035_3605\design (covey)\drawings - concept design\uncontrolled\C300 BULK EARTHWORKS.dwg Plot 12 February 2025 - 11:09 AM
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APPENDIX B MANNINGS ‘N ROUGHNESS COEFFICIENTS MAPS
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ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario Manning's n Roughness Coefficients Map Legend ao Site Boundary Cadastral Boundary Manning's n Roughness Coefficients Default Grassland (n=0.050) Road Pavement (n=0.018) Trees and Bushland (n=0.075) Grassland (n=0.050) oO o Oo [1 Roof (n=0.300) a Oo Unsealed Road (n=0.030) Water Body (n=0.015) 0 100
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ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario Manning's n Roughness Coefficients Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Manning's n Roughness Coefficients Default Grassland (n=0.050) Road Pavement (n=0.018) Trees and Bushland (n=0.075) O a [JJ Grassland (n=0.050) o a Oo Roof (n=0.300) Unsealed Road (n=0.030) Water Body (n=0.015) 0 100
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APPENDIX C FLOOD Maps
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ASSOCIATES PTY LTD Consulting Engineers ana 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 50% AEP Water Surface Level Map Legend ao Site Boundary Cadastral Boundary | [7] RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) a A a a ~ a o Oo L L Oo O a L] L LJ Oo L o a 100
Page 26
ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 10% AEP Water Surface Level Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) 8 , o a » o 2 Oo = Ll s o Oo Bo LJ O L] 26 Oo 2 LI a Ba 100
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ASSOCIATES PTY LTD Consulting Engineers Existing Case Sc 1% AEP Water Surface Level Legend ao Site Boundary Cadastral Boundary [7 RRA Pad —_ 0.5 Water Level Contours Water Surface Level (m AHD) i <-6 i c-s [J 8-10 10-12 12-14 14-16 -18 -20 -22 -24 - 26 - 28 - 30 -32 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 1% AEP te Change Water Si Level Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) ; o ; a B Oo eo - U s o a a L L Oo Oo LO o a 100
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ASSOCIATES PTY LTD Consulting Engineers ana 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 50% AEP Water Surface Level Map Legend ao Site Boundary Cadastral Boundary | [7] RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) a A a a ~ a o Oo L L Oo O a L] L LJ Oo L o a 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 10% AEP Water Surface Level Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) 8 , o a » o 2 Oo = Ll s o Oo Bo LJ O L] 26 Oo 2 LI a Ba 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 1% AEP Water Surface Level Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) ; o ; a B Oo eo - U s o a a L L Oo Oo LO o a 100
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> Emu Mountain; Roads i) ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario 1% AEP Climate Change Water Surface Level Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad — _ 0.5 Water Level Contours Water Surface Level (m AHD) i <-6 i c-s [J 8-10 10-12 12-14 14-16 16 - 18 18-20 Bh 20-22 [_] 22-24 - 26 -28 - 30 - 32 100
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rr COVEY ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Sc 50% AEP Depth Map Legend ao Site Boundary ‘ Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 [] 06-09 0.9 - 1.2 12-15 15-18 [J >18 100
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1 Shas | x — ‘Noosa: jundi im so se OF ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario 10% AEP Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 0.3 - 0.6 0.6 - 0.9 0.9-1.2 12-15 15-18 >18 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 1% AEP Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 .6 - 0.9 .9- 1.2 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 1% AEP Climate Change Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 .6 - 0.9 .9- 1.2 100
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rr COVEY ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 50% AEP Depth Map Legend ao Site Boundary ‘ Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 [] 06-09 0.9 - 1.2 12-15 15-18 [J >18 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Sceni 10% AEP Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 [] 06-09 0.9 - 1.2 12-15 15-18 undi'N | | fan 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 1% AEP Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 .6 - 0.9 .9- 1.2 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Sceni 1% AEP Climate Ct Depth Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Depth (m) [] 00-03 L] 03-06 [] 06-09 0.9 - 1.2 12-15 15-18 SO ok Sa ad 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Existing Case Scenario 50% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 100
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ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario 10% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 100
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ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario 1% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan ing Case Scenario 1% AEP Climate Change Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) = = Einu Mountain Road SS 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Scenario 50% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 100
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ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario 10% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Sceni 1% AEP Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 3 - 0.6 6 - 0.9 9 - 1.2 2-15 5-18 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Sceni 1% AEP Climate Ct Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Velocity (m/s) [] <=03 0.3 - 0.6 0.6 - 0.9 0.9 - 1.2 12-15 15-18 1.8-2.1 >21 = = Einu Mountain Road SS 100
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! 3 3) ce 3 g 3: 3 < = e 5 € 5) a i ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario 50% AEP Hazard Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) [i <=06 L] 06-08 100
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ASSOCIATES PTY LTD Consulting Engineers Existing Case Scenario 10% AEP Hazard Map Legend ao Site Boundary ‘ Cadastral Boundary [7 RRA Pad Hazard (d*V) [i <=06 L] 06-08 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan ing Case Sce 1% AEP Hazard Mi Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan 1, ing Case Scenario 1% AEP Climate Change Hazard Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) 100
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! 3 3) ce 3 g 3: 3 < = e 5 € 5) a i ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario 50% AEP Hazard Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) [i <=06 L] 06-08 100
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ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario 10% AEP Hazard Map Legend ao Site Boundary ‘ Cadastral Boundary [7 RRA Pad Hazard (d*V) [i <=06 L] 06-08 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan Developed Case Sceni 1% AEP Hazard Mi Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) 100
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ASSOCIATES PTY LTD Consulting Engineers Developed Case Scenario 1% AEP Climate Change Hazard Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Hazard (d*V) 100
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ASSOCIATES PTY LTD Consulting Engineers Legend ao Site Boundary Cadastral Boundary -0.05- -0.01 0.01 - 0.01 0.01 - 0.05 0.05 - 0.1 100
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ASSOCIATES PTY LTD Consulting Engineers 10% AEP Afflux Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad -0.05- -0.01 -0.01 - 0.01 0.01 - 0.05 0.05 - 0.1 >01 100
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ASSOCIATES PTY LTD Consulting Engineers 1% AEP Afflux Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad [J -0.05- -0.01 > (J -0.01 - 0.01 [_] 0.01 - 0.05 [_] 0.05 - 0.1 [ >o.1 100
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ASSOCIATES PTY LTD Consulting Engineers 4 561 Eumundi-Noosa Road, Doonan 1% AEP Climate Change Afflux Map Legend ; ao Site Boundary Cadastral Boundary -0.05- -0.01 0.01 - 0.01 0.01 - 0.05 0.05 - 0.1 100
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ASSOCIATES PTY LTD Consulting Engineers Legend ao Site Boundary Cadastral Boundary | [7] RRA Pad Change in Velocity (m/s) 0 100
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ASSOCIATES PTY LTD Consulting Engineers 10% AEP Difference in Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Velocity (m/s) 0 ~~» Emu Mountain Road 100
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ASSOCIATES PTY LTD Consulting Engineers 1% AEP Difference in Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Velocity (m/s) 0 70.5 - -0.1 ne Se ee = =~ a —as 100
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ASSOCIATES PTY LTD Consulting Engineers 1% AEP Climate Change Difference in Velocity Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Velocity (m/s) 0 70.5 - -0.1 100
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ASSOCIATES PTY LTD Consulting Engineers ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Hazard (m/s) 100
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ASSOCIATES PTY LTD Consulting Engineers ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Hazard (m/s) 100
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ASSOCIATES PTY LTD Consulting Engineers 561 Eumundi-Noosa Road, Doonan 1% AEP Difference in Hazard Map Legend ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Hazard (m/s) 100
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ASSOCIATES PTY LTD Consulting Engineers ao Site Boundary Cadastral Boundary [7 RRA Pad Change in Hazard (m/s) 100
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