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Landscape Technical Specification - OPW14/0197
Attached to the e-mail Doonella Stage C (Email 7 of 7) Landscape Technical Specification & Transmittal - OPW14/0197.
Doonella
Stage C
LANDSCAPE TECHNICAL SPECIFICATION
Prepared for:
Norfolk Estates Pty Ltd.
ABN 34504371334
Level 10, 345 Ann St
Brisbane QLD 4000
Prepared by:
AECOM
Level 1, 29 The Esplanade, Maroochydore, QLD 4558
PO Box 1080 Cotton Tree QLD 4558
Ph 07 3553 2000
Fax 07 5479 1832
ISSUE AMENDMENT/REVISION DETAILS DATE SIGNED
OFF
OP1 Operational Works 17/03/14 SC
OP2 Operational Works 23/04/14 WW
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Doonella – Stage C
TABLE OF CONTENTS
1. PRELIMINARIES ............................................................................................................................ 1
1.1 SCOPE OF WORK ................................................................................................................. 1
1.2 EXCLUDED WORKS .............................................................................................................. 2
1.3 DEFINITIONS.......................................................................................................................... 2
1.4 CONSTRUCTION OF WORKS .............................................................................................. 2
1.5 CONSTRUCTION PROGRAM ............................................................................................... 2
1.6 REFERENCED DOCUMENTS ............................................................................................... 2
1.7 MATERIALS & WORKMANSHIP ............................................................................................ 3
1.8 INSPECTION .......................................................................................................................... 3
1.9 ENVIRONMENTAL PROTECTION ........................................................................................ 3
1.10 PLANT ESTABLISHMENT...................................................................................................... 4
1.11 WORKPLACE HEALTH AND SAFETY .................................................................................. 4
1.12 VERIFICATION OF SERVICES .............................................................................................. 4
2. WEED ERADICATION ................................................................................................................... 5
3. BASIC EXCAVATION .................................................................................................................... 6
4. STORMWATER AND DRAINAGE ................................................................................................. 1
5. EDGING .......................................................................................................................................... 3
5.1 GENERAL ............................................................................................................................... 3
5.2 CONCRETE EDGE ................................................................................................................. 3
6. SURFACE FINISHES SCHEDULE ................................................................................................ 1
7. IMPORTED TOPSOIL .................................................................................................................... 2
7.1 GENERAL ............................................................................................................................... 2
7.2 SOIL SAMPLING & TESTING ................................................................................................ 2
7.3 TOPSOIL STORAGE .............................................................................................................. 3
7.4 DELIVERY DOCKETS ............................................................................................................ 3
7.5 PLACING TOPSOIL ................................................................................................................ 3
7.6 FERTILISER............................................................................................................................ 4
8. TURF ............................................................................................................................................... 5
8.1 GENERAL ............................................................................................................................... 5
8.2 SUPPLY .................................................................................................................................. 5
8.3 LAYING ................................................................................................................................... 5
8.4 MAINTENANCE ...................................................................................................................... 5
9. PLANTING WORKS ....................................................................................................................... 6
9.1 GENERAL ............................................................................................................................... 6
9.2 SPECIAL REQUIREMENTS ................................................................................................... 6
9.3 EXCAVATING FOR PLANTING ............................................................................................. 6
9.4 PLANTING .............................................................................................................................. 6
9.5 PLANT CONTAINERS ............................................................................................................ 7
9.6 PRODUCTION AND MAINTENANCE GENERALLY ............................................................. 8
9.7 PLACING................................................................................................................................. 8
9.8 SPRAYING .............................................................................................................................. 9
9.9 PLANT MATERIALS ............................................................................................................... 9
9.10 TREES SUPPLY AND DELIVERY ......................................................................................... 9
9.11 STAKES AND TIES .............................................................................................................. 10
9.12 TREE SURGERY .................................................................................................................. 11
9.13 EXISTING SERVICES PROTECTION ................................................................................. 11
10. MULCH ......................................................................................................................................... 12
11. IRRIGATION ................................................................................................................................. 13
11.1 PROJECT SCOPE ................................................................................................................ 13
12. TIMBER WORK - BOLLARDS..................................................................................................... 14
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Doonella – Stage C 12.1 GENERAL ............................................................................................................................. 14 12.1 TIMBER SCHEDULE ............................................................................................................ 14 12.2 TIMBER QUALITY ................................................................................................................ 14 13. FENCES .......................................................................................................................................... 1 13.1 GENERAL ............................................................................................................................... 1 14. MAINTENANCE.............................................................................................................................. 2 14.1 HARD AND SOFTSCAPE ESTABLISHMENT PERIOD ........................................................ 2 14.2 COMPLETION ........................................................................................................................ 5 AECOM iii
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Doonella – Stage C
1. PRELIMINARIES
1.1 SCOPE OF WORK
The scope of the works to be undertaken under this contract are depicted on the drawings included in the
Tender documents, as described in the Specification and qualified in these Preliminaries.
The works to be performed are set out in the following drawings and comprise of the following:
AS 2124 General Conditions of Contract (available on request)
Landscape Management Plan (available on request)
Tender Schedule
Technical Specification
The following drawings:
Sheet No. Issue Dwg Title Scale
L-001 OP2 Cover Sheet NTS
L-002 OP2 Legend & Schedule NTS
L-201 OP2 Surface Finishes Plan 1:200
L-202 OP2 Surface Finishes Plan 1:200
L-203 OP2 Surface Finishes Plan 1:200
L-204 OP2 Surface Finishes Plan 1:200
L-205 OP2 Surface Finishes Plan 1:200
L-206 OP2 Surface Finishes Plan 1:200
L-207 OP2 Surface Finishes Plan 1:200
L-208 OP2 Surface Finishes Plan 1:200
L-401 OP2 Planting Plan 1:200
L-402 OP2 Planting Plan 1:200
L-403 OP2 Planting Plan 1:200
L-404 OP2 Planting Plan 1:200
L-405 OP2 Planting Plan 1:200
L-406 OP2 Planting Plan 1:200
L-407 OP2 Planting Plan 1:200
L-408 OP2 Planting Plan 1:200
L-901 OP2 Landscape Details As Indicated
L-902 OP2 Landscape Details As Indicated
L-903 OP2 Landscape Details As Indicated
L-904 OP2 Landscape Details As Indicated
One copy of the Contract Documents shall be issued to the Contractor. The Contractor shall be deemed to
have examined the documents and to have allowed for all costs in the tender in relation to the provisions of
these documents affecting the work.
The Schedule of Items does not quantify the works or the full list of items required to be undertaken. This
Schedule is to be used for tender evaluation and as an indication of the value of work completed for
Progress Payment Purposes only.
Requirements of individual technical sections of the specification take precedence over any conflicting
requirements in the preliminaries.
Check all relevant dimensions on site before proceeding with work. Under no circumstances shall
dimensions be scaled from drawings. No claim for extras arising from failure to obtain measurements and
other information on site will be allowed.
AECOM 1
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Doonella – Stage C
1.2 EXCLUDED WORKS
All works described in this specification and on the drawings shall be carried out by the contractor, those
works required by regulation or law to be carried out by other authorities (water connections, electrical
certifications, etc) shall be engaged directly by the contractor. The contractor shall pay for all fees and
charges for such work.
1.3 DEFINITIONS
The terms ‘directed’, ‘selected’, ‘required’ and ‘approved’ mean directed, selected, required and approved
by the Superintendent unless expressly specified otherwise.
Unless the contract otherwise requires, the following definitions apply:
Head Contract: “Head contract” shall mean contract to which the contractor is
nominated as subcontractor. The head contract is under and
being performed under AS4000
Supply: “Supply”, “furnish” and similar expressions mean “supply only”.
Provide: “Provide” and similar expressions mean “supply and install”.
Approved: “Approved”, “reviewed”, “directed”, “endorsed” and similar
expressions mean “approved (reviewed, directed, rejected,
endorsed) in writing by the contract administrator.”
Give Notice: “Give notice”, “submit”, “advise”, “inform” and similar
expressions mean “give notice (submit, advise, inform) in writing
to the contract administrator”.
Proprietary: “Proprietary” means identifiable by naming manufacturer,
supplier, installer, trade name, brand name, and catalogue or
reference number.
Samples: Includes samples, prototypes and sample panels.
NATA: National Association of Testing Authorities.
1.4 CONSTRUCTION OF WORKS
Work may be performed between the hours of 7.00am and 6.00pm Monday to Friday and 8.00am to noon
Saturday. Work can be performed outside these hours with the written approval of the Superintendent.
Work on Sunday will not normally be approved.
1.5 CONSTRUCTION PROGRAM
A construction program is to be submitted to the Superintendent prior to commencement of work for
approval no less than seven (7) days following notification of being awarded the contract.
Construction program will clearly indicate the following information on a weekly basis:
Project Milestones
Critical path of construction
Tasks
Progress
The Contractor is to ensure the work is organised, sequenced, and implemented in a manner which
eliminates unreasonable disturbance to the site, property and disruption to continuing property users, and
access.
1.6 REFERENCED DOCUMENTS
Use latest editions of referenced documents and refer to any amendments. Other editions or amendments
required by statutory authorities will take precedence over referenced documents.
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Doonella – Stage C Responsibilities and duties of the Principal, Contractor and Contract Superintendent are not altered by requirements in referenced documents. 1.7 MATERIALS & WORKMANSHIP Where specified, materials which are not available or cannot reasonably be provided in time to meet the program, the Superintendent will permit substitutions for such materials provided that applications for substitution is made as soon as it is known that specified materials are unavailable. The Superintendent shall approve substitutions if the Superintendent is satisfied that the proposed substitute is satisfactory for the purpose intended. Unless otherwise specified, manufactured items to be used in the work under the contract are to be used in accordance with current recommendations published by the manufacturer. Workmanship shall be the best of its respective kind and conform to the best practices of the trade. Only suitably qualified persons shall perform work on this project relevant to their area of expertise. 1.8 INSPECTION Minimum of 24 (twenty-four) hours notice for inspections to be made. 1.9 ENVIRONMENTAL PROTECTION NOISE CONTROL The Contractor is required to take all practical precautions to minimise noise resulting from work under the Contract. Fit all motorised construction equipment with noise suppressors and use so that noise is minimised. Do not use loud hailers. Wet saws are to be used to cut pavers, within a suitable enclosure to the approval of the Superintendent. Wet cutting to be in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996). DUST CONTROL Minimise air-borne dust arising from the performance of the works under the Contract. Dust control as in accordance with The International erosion Control Association Guidelines (1993). As in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996). WATER QUALITY Water quality to be maintained. Sampling of water quality is to be undertaken if directed by the Superintendent, in accordance with the Department of Environment: Water Quality Sampling Manual, Queensland Department of Environment and Heritage (1995) and The Queensland Department of Natural Resources (DNR) Riverine Environmental Protection Act (1997). As in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996), Environmental Protection Act (1994), and Environmental Protection (Water) Policy (1994) and Guidelines for Managing Environmental Risks Associated with Construction Activities (ICC) CLEAN PLANT & EQUIPMENT Ensure that the wheels, tracks and body surface of all vehicles and plant entering and leaving the site are free of soil, organic material and pathogens. Ensure that soil, organic material and pathogens do not contaminate the site or surrounding properties, as in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996). OZONE PROTECTION Minimise the use of chlorofluorocarbons, halons and other compounds directly implicated in depletion of the ozone layer. As in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996). SOIL EROSION CONTROL Minimise erosion of soil from any lands used or occupied in the performance of the work under the contract. Soil erosion controls and measures to be in accordance with Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996), Environmental Protection Act (1994), and Environmental Protection (Water) Policy (1994). FIRE RESTRICTIONS No fires are to be lit. AECOM 3
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Doonella – Stage C
PESTS
Do not introduce weeds, phytophthora, insect or animal pests to the property. As in accordance with
Engineering Guidelines for Queensland Construction Sites: Soil Erosion & Sediment Control (1996).
Note: Refer Landscape Management plan for site specific requirements and expectations during
the construction and maintenance process.
1.10 PLANT ESTABLISHMENT
The Plant Establishment Period is the time subsequent to Practical Completion during which the Contractor
has specific responsibilities for the maintenance of the plant material. Specific responsibilities are outlined
in the Specification and Maintenance Manual.
The Plant Establishment Period is twelve (12) weeks from the Date of Practical Completion.
At the end of the Plant Establishment Period, all plant material shall be in good health and have grown at a
rate deemed acceptable by the Superintendent. They shall be capable of growth independent of all
temporary works.
During Maintenance Period
Any plant material that shows signs of stress or decline during the Plant Establishment Period will be
inspected by the Superintendent. If in the opinion of the Superintendent the plant is stressed, failed or
deteriorating, the Contractor is required to replace that plant immediately with the same species and of an
equivalent size to that of the specified plant size in the contract and equivalent to normal growth rate prior
to its removal. This size will be determined by independent horticulturist appointed by the Superintendent if
required.
Completion of Maintenance Period
At the end of the Plant Establishment Period, any plant material which has not shown significant signs of
growth, failed, deteriorated, or in the opinion of the Superintendent requires replacement shall be replaced
immediately by the Contractor, at the Contractor’s expense. Plant material to be replaced is to be of the
same species and of an equivalent size to that of the specified plant size in the contract after twelve (12)
weeks of successful establishment. This size will be determined ICC if required.
The Council representative charged with assessing plant material shall be a suitably qualified horticulturist.
1.11 WORKPLACE HEALTH AND SAFETY
The contractor shall comply with all the requirements of the Health and Safety Act 1995 and perform and
shall accept appointment as the Principal Contractor responsible for all sub-contractors under his control.
1.12 VERIFICATION OF SERVICES
The contractor shall be responsible for the verification of services within and bordering the site. Service
lines are to be marked and brought to the attention of all workers. Any modification or temporary
interruption of services shall have attained permission from respective utility service authorities.
The Contractor shall be responsible for liaising with the appropriate persons, to organise on site detection
of respective services. Forty-eight hours notice is required for the organisation of such field personnel.
The Contractor will be held liable for any damage to services resulting from excavation works.
END OF SECTION
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Doonella – Stage C
2. WEED ERADICATION
2.1.1 GENERAL
Eradicate weeds by environmentally acceptable methods using a non-residual glyphosate herbicide in any
of its registered formulae, at the recommended maximum rate. Regularly remove, by hand, rubbish and
weed growth that may occur or recur throughout planted and mulched areas. Continue eradication
throughout the course of the Works and during the Planting Establishment Period.
Weed Eradication Schedule:
Weed type Eradication method or treatment:
Acceptable Unacceptable
All All non-residual herbicides Any residual herbicide.
Glyphosate based,
e.g. Roundup or approved
equivalent.
END OF SECTION
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Doonella – Stage C
3. BASIC EXCAVATION
3.1.1 GENERAL
Refer Civil Engineer for Bulk Earthworks and Excavation.
Do not disturb services. Locate all services before commencing any excavation and cultivation. Refer to
Civil Engineer for service locations. Excavate / cultivate areas within 500mm of services by hand.
3.1.2 LOCALISED EXCAVATION
Excavate and dispose all surplus material to allow for depths required for all landscape elements below:
General Planting areas: 400mm
General Turf areas: 100mm
Tree Planting: Varies for different rootball sizes. Refer planting section in this specification.
3.1.3 SUBGRADE PREPARATION
During cultivation, thoroughly mix in any materials to be incorporated into the subsoil. Cultivate manually
within 300mm of paths and structures. Remove stones exceeding 25mm, clods of earth exceeding 50mm
and any weeds, rubbish or other deleterious material brought to the surface during cultivation.
Cultivate the subsoil to all planting and turf areas to a depth of 150mm.
3.1.4 TRIMMING OF SUBGRADE
The subgrade shall be shaped to the profile required. The surface of the subgrade shall be compacted,
trimmed, profiled and check levelled prior to placing of pavement materials.
Surface of subgrade shall be left free from rubbish, stones, felled timber and brush, and left smooth and
clean, true to the grade and levels shown on the drawings.
The allowable variation on design level at any point shall be 50 mm provided that all areas are free draining
and no ponding of water occurs.
END OF SECTION
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Doonella – Stage C 4. STORMWATER AND DRAINAGE 4.1.1 GENERAL The Contractor shall be responsible for all aspects of coordination with Hydraulic works by other trades. Refer also to Hydraulic Engineers drawings Drainage locations shown on but not limited to: Landscape Plans Landscape Plans are indicative only. All drainage requirements are to be checked, confirmed and documented by the Hydraulic Engineer. Refer to Hydraulic Documents for actual drainage requirements for type, size and capacity. Refer to this specification for grate type/ finishes only. Submit samples for approval prior to installation. Refer to Engineers drawings for load capacity requirements. 4.1.2 CROSS REFERENCES General: Conform to the General requirements section. 4.1.3 MATERIALS Subsoil: To AS 2439.1. Pits and Channel Grates: Located with reference to the Landscape Levels and Drainage Plans. Refer to Engineer’s details for type, size and capacity. 4.1.4 STORMWATER General: Refer to Engineer’s details 4.1.5 SUBSOIL DRAINS General: Provide subsoil drains to intercept groundwater seepage and prevent water build-up behind walls and under floors and pavements. As required or as shown on the drawings. Connect subsoil drains to surface drains or to an approved stormwater drainage system as applicable. Points and method of connection to stormwater system to Hydraulic Engineers details. Subsoil drainage shall be constructed in accordance to AS/NZS 3500.3:2003. Unless specified otherwise, subsoil drainage trenches shall incorporate geotextile material lining the trench. Trench width: ≥ 450 mm. Pipe depth: Provide the following minimum clear depths, measured to the crown of the pipe, where the pipe passes below the following elements: 100 mm below sub-grade level of the pavement, kerb or channel. 100 mm below the average gradient of the bottom of footings. 450 mm below the finished surface of unpaved ground. 4.1.6 SUBSOIL DRAINAGE GEOFABRIC MATERIAL Geotextile material used in subsoil drains shall be a non-woven type and shall have the following properties prior to exposure to sunlight at the site. Geotextile strength rating (G) of greater than 900 Flow rate under 100 mm constant head as determined using the Permittivity Test procedures stated in AS 3706.9 of greater than 501/m2/s. AECOM 1
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Doonella – Stage C Equivalent opening size (EOS) of the geotextile as determined using the procedures stated in AS 3706.7 of less than 200 micro metres for granular soils (i.e., D50s greater than 75 micro metres) and the EOS of less than 85 micro metres for cohesive soils (i.e., D50s less than 75 micro metres). 4.1.7 SUBSURFACE DRAINAGE Field Inlets Surface drainage pit shall be installed to locations and levels as indicated on the landscape drawings. Finish surface pit level flush with surrounding surface finish levels. Ensure positive overland drainage flow to all pits and that no ponding occurs around the pit. Align all pits square to paths, pavement patterns, kerbs, walls and the like. Install pit to manufacturer’s recommendations Product: Aco 450X450 Commercial Drain Sump with Standard HDG (Medium Duty) bolt down Mesh Grate or approved equal. Continuous Surface Drain Type: Aquadux Diamond Series Continuous Surface Drainage System Size: 100mm Wide. Surface drainage system shall be installed to locations and levels as indicated on the landscape drawings. Finish surface pit level flush with surrounding surface finish levels. Ensure positive overland drainage flow to all pits and that no ponding occurs around the pit. Align all components square to paths, pavement patterns, kerbs, walls and the like. Install pit to manufacturer’s recommendations 4.1.8 COMPLETION Cleaning General: Clean and flush the whole installation. AECOM 2
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Doonella – Stage C
5. EDGING
5.1 GENERAL
Set edging’s flush with adjoining surfaces to define new planting, grass areas or both.
5.2 CONCRETE EDGE
Supply and install 100 x 100 continuous concrete edging to profile as detailed on the drawing.
Finish: being steel trowel.
Ensure subgrade has been suitably compacted before installation. Concrete is to be a minimum 20Mpa.
No coloured oxide is required to the edging.
Plan reference code: Description: Colour: Pattern / Finish;
CE Insitu extruded To match: Smooth float finish
concrete edging to extruded from mobile
profile as specified Standard Grey (non hopper.
and detailed. coloured concrete).
TE Treated Pine N/A N/A
45 x 75mm
END OF SECTION
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Doonella – Stage C
6. SURFACE FINISHES SCHEDULE
Pavement Description: Colour: Pattern / Finish Supplier Scope of
Type/ Plan works
reference
code:
P1 Insitu standard grey Standard Grey Light broom finish - Civil works
Footpaths concrete pavement to
and locations where
Driveways indicated on
landscape plans.
P2 To match Stage A: To match: Exposed Aggregate Pioneer Civil works
Thresholds
CCS Lemon [email protected]% dose rate in
grey cement.
Aggregate:
60% River Red, 40%
Autumn Gold
END OF SECTION
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Doonella – Stage C
7. IMPORTED TOPSOIL
7.1 GENERAL
7.1.1 STANDARDS
Topsoil shall comply with this specification and AS 4419 `Soils for Landscaping and Garden Use’.
7.1.2 INTERPRETATION
DEFINITIONS
Topsoil: Soil that contains the following characteristics:
Contains organic matter.
Supports plant life.
Free from unwanted matter.
Unwanted matter (in topsoil):
Stones over 25 mm diameter.
Clay lumps.
Weeds and tree roots.
Sticks and rubbish.
Material toxic to plants.
Imported topsoil:
Fine: Clay loam, fine sandy loam, sandy clay loam, silty loam, loam.
Medium: Sandy loam, fine sandy loam.
Coarse: Sand, loamy sand.
Topsoil mixture: Topsoil and compost or other additives, thoroughly mixed before placing.
7.2 SOIL SAMPLING & TESTING
All topsoil shall have the following general characteristics:
Texture to be medium to fine friable loam.
Saturated soils will not be accepted.
Nitrogen Drawdown Index (NDI) – testing of soil to be carried out to confirm organic materials in
the soil mix have been fully composted (comply with AS 4419, clause 5.12).
All mixes to be mechanically screened to comply with AS 4419, clause 5.15 and thoroughly
blended to provide a uniform distribution of particles.
Limit the use of components that display high shrinkage tendencies (i.e. Bagasse, Paper Mulch,
spent Mushroom Compost, etc).
No strong odours to persist once materials are spread and watered.
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Doonella – Stage C
No sharp items or chemical components deemed as dangerous to health or safety to be present
i.e., metal, glass;
Free from damaging levels of phenolic and tannic toxins - Refer AS 3743 Appendix E;
Soil must comply with toxicity index criteria as stated in AS 4419 clause 5.11 and Appendix F;
Vegetative reproductive material shall be absent. The Contractor shall also confirm in writing that the
topsoil does not contain “Nutgrass” (Cyperus rotundus). If the weed is present, the Contractor shall notify
the Superintendent immediately with recommendations for its complete removal. Remove the weed by the
approved method.
Soils must not contain chemicals that will result in contamination of land (e.g. heavy metals,
hydrocarbons, pesticides, etc).
Soils must not contain fire ants or nesting material.
Composted organic matter for native plants should be low in phosphorous such as fully composted
slash-pine bark.
7.3 TOPSOIL STORAGE
If it is necessary to stockpile topsoil on site do so in locations as directed by the Superintendent, to heights
not exceeding 900 mm. Protect from wind.
7.4 DELIVERY DOCKETS
Provide delivery dockets for all topsoil. Show volumes, soil types, purchaser, and all relevant signatures to
confirm the above.
7.5 PLACING TOPSOIL
General: Spread the topsoil on the prepared subsoil and grade evenly, making the necessary allowances to
ensure that finished levels and contours may be achieved after light compaction.
7.5.1 CONTAMINATION
Where diesel oil, cement or other phytotoxic material has been spilt on the subsoil or topsoil, excavate the
contaminated soil, dispose of it off the site, and replace it with imported topsoil to restore design levels.
7.5.2 FINISHING
Feather edges into adjoining undisturbed ground.
7.5.3 CONSOLIDATION
Compact lightly and uniformly in 150 mm layers. Avoid differential subsidence and excess compaction and
produce a finished topsoil surface that has the following characteristics:
Finished to design levels.
Smooth and free from stones or lumps of soil.
Graded to drain freely, without ponding, to catchment points.
Graded evenly into adjoining ground surfaces.
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Doonella – Stage C
Ready for planting.
7.5.4 TOPSOIL DEPTHS
Spread imported topsoil to planting areas to a depth of 300mm.
7.6 FERTILISER
A qualified Horticulturist shall provide a fertilising regime for landscape works based on the results of the
soil tests.
The Contractor shall provide proprietary fertilisers in accordance with the Horticulturist’s recommendations,
delivered to the site in sealed bags marked to show manufacturer or vendor, weight, fertiliser type, N:P:K
ratio, recommended uses and application rates.
END OF SECTION
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Doonella – Stage C
8. TURF
8.1 GENERAL
Turf species shall be Green Couch. The turf shall have 90-95% of the species type specified. The
remaining percentage may contain grass species other than the specified type. Minimum thickness of
topsoil attached is to be 25 mm.
Within 14 days of signing of the contract, nominate the specialist supplier of turf for the project for approval.
Furnish a warranty from the supplier that the turf is free from weeds and other foreign matters. Random
inspections of 1 m² of specified turf shall be required before laying of turf on request of Superintendent. If
the sample upon inspection is found to be defective, the entire turf supply shall be rejected. Alternatively,
the entire turf supply shall be treated with selective herbicides at no cost to the Principal.
Upon placement of topsoil bring surface to smooth even grades, free from mounds and hollows such that
the whole surface drains in accordance with the finished design levels.
8.2 SUPPLY
Deliver turf to the site within 24 hours of cutting and prevent it from drying out between cutting and laying. If
possible lay turf within 36 hours of cutting. If it is not laid within 36 hours, roll it out on a flat surface with the
grass up and water as necessary to maintain a good condition.
8.3 LAYING
Lay the turf along land contours with staggered, close-butted joints, and so that the finished turf surface is
at the levels shown on drawings.
As soon as practical after laying, roll over the turf with a roller weighing not more than 90 kg/m of width and
fill joints with topsoil as specified. As soon as possible after rolling, irrigate thoroughly with a fine spray to a
depth of 150mm. Continue as necessary to maintain moisture to this depth and to maintain grass in a
healthy condition. Lift failed turf and relay with new turf of the specified turf species.
8.4 MAINTENANCE
When the turf is established, mow at 25mm above soil level, remove cuttings and lightly top dress to a
maximum depth of 10mm with specified topsoil to fill joints and correct unevenness in the turf surface 21
days after turfing, broadcast evenly a minimum of 10 g/m² of sulphate of ammonia fertiliser over the whole
of the area of turfing.
Protect newly turfed areas against traffic until turf is established. When turf is established mow at regular
intervals to maintain an average height of 25mm. Remove weeds that emerge in the turfed areas.
Carry out last mowing within 7 days before the end of planting establishment period. Remove grass
clippings from the site after each mowing. Apply a lawn fertiliser at the completion of the first and last
mowings, and at other times required to maintain healthy grass cover.
END OF SECTION
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Doonella – Stage C 9. PLANTING WORKS 9.1 GENERAL Supply the scheduled number of plants to the quality, size and health in accordance with this specification and Plant Schedule. Plants shall be secured in sufficient time to ensure they achieve specified sizes and quality for the Contract. The Superintendent must be informed immediately if any difficulty is encountered in procuring the plants on the nursery site at which they are to be stored, and clearly labelled as being for this project. The allocated plants must also be made available to the Superintendent to be inspected at all times. Photographic evidence of all species is required 4 weeks after Contract has been let. Photographs must contain at least two plants / trees per species including a measuring staff or other measuring devices illustrating height and spread of individual species. 9.2 SPECIAL REQUIREMENTS Attain all plant stock from a QALI registered supplier with an Australian Standards Approved Quality Assurance System. The nurseries location must be situated within 100km radius of site and inspection of all plant stock shall take place at one location only. Alternatively, the Contractor shall reimburse the Superintendent for time and travel to inspect the plant material. 9.3 EXCAVATING FOR PLANTING 9.3.1 PLANTING AREAS Excavate a hole for each plant large enough to provide not less than 200mm of topsoil around the root system of the plant, or as shown on the Drawings. 9.3.2 PLANTING OF TREES Excavate hole a minimum 300mm wider than the rootball and deep enough to accept a minimum 200mm of topsoil below. Break up the base of the hole to a further depth of 200mm, and loosen compacted sides of the hole, as necessary to prevent confinement of root growth to the hole. Backfill with imported topsoil, lightly tamp and water to eliminate air pockets. 9.4 PLANTING 9.4.1 GENERAL Set out plant material in positions and quantities as shown on planting plans unless otherwise directed. If it appears necessary for plants to cover the area more uniformly, or for similar reasons, notify the Superintendent for instruction and direction. Planting holes shall be prepared not more than twenty four- (24) hours in advance of planting. A slow release tablet form of fertiliser is preferred, 'Agriform' or equivalent. Apply tablets at the rate and depth of the manufacturer's recommendation. Water plants in containers immediately prior to planting. Install plants as shown on Planting Plan and associated details. Ensure the topsoil level of the plant root ball is 20mm below the finished surface of the soil surrounding the hole, backfill as required. AECOM 6
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Doonella – Stage C Where root growth has been restricted in the container, the outside roots shall be lightly teased prior to planting. Care should be taken to ensure that roots are not exposed to drying influences such as sun or wind. Avoid leaving air pockets in backfill by carefully firming soil progressively. Water all plants thoroughly after planting, and for the duration of the establishment/maintenance period, to ensure the establishment of each plant. Remove and dispose of all identification labels delivered with plant material. Advise the Superintendent immediately, if there is any evidence of soil or drainage conditions considered detrimental to the growth of the plant material. Similarly, in accordance with accepted horticultural practice, planting should cease if severe adverse weather conditions, for example dry soil, flooding, strong winds etc prevail. 9.5 PLANT CONTAINERS 9.5.1 GENERAL Supply plants in weed-free containers of the required size. Open rooted stock: If trees are to be supplied as open rooted stock, ensure this is appropriate to the species, variety, size, and time of year for planting. 9.5.2 POTTING-ON Do not carry out potting-on. 9.5.3 LABELLING Label at least one plant of each species or variety in a batch with a durable, readable tag. 9.5.4 STORAGE Deliver plant material to the site on a day-to-day basis, and plant immediately after delivery. 9.5.5 HARDENING OFF All stock shall be grown in open areas, which are exposed, to the sun and wind to promote vigorous plant growth and to harden plants off. For a minimum of eight (8) weeks prior to delivery, all plants shall be grown in open areas receiving a minimum time of 75% full sun. Watering and fertilising of plants shall be gradually reduced for a similar time period leading up to delivery to aid in hardening of plants. 9.5.6 ACCLIMATISATION If plants are being grown / propagated outside a 100km radius of Brisbane move all plant stock to a Nursery within this radius so that the plants may become acclimatised for a period of not less than (8) weeks prior to date of delivery. The plants must all be hardened off in accordance with the above clause. 9.5.7 SAMPLES Root conditions of plants may be determined by removing plants from their containers and inspecting them. Where it is decided to remove the soil from the roots of any plants, the number so disturbed will not exceed 1% of the total of each of the species or variety where the number specified exceeds one hundred (100), or one sample if the number is less than one hundred (100). 9.5.8 DEFECTIVE SAMPLES If samples so inspected are found to be defective, the entire line represented by the defective samples may be rejected. All plants rendered unsuitable as a result of this inspection will be considered as samples on which payment cannot be claimed. AECOM 7
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Doonella – Stage C 9.5.9 SIZE AND FORM REQUIREMENTS At the time of delivery all plants shall conform to the specified minimum size and nominated container size, confirmed in the Plant Schedule. Plants shall be grown, maintained, pruned and fertilised to produce a specimen at delivery conforming to the detail and description contained in the Plant Schedule. This shall include root pruning to advanced stock for a minimum 12-week period prior to delivery to site. Rootball dimensions should be appropriate to the planter into which they will be installed. 9.6 PRODUCTION AND MAINTENANCE GENERALLY The plants shall be watered, fertilised, and treated for pests and diseases all as necessary to maintain continuing healthy growth. An approved pruning programme shall be carried out regularly during the Establishment Period to promote trunk and foliage canopy formation in trees all as directed by the Superintendent. All plants must have the approval of the Superintendent before delivery to site. 9.6.1 MAINTENANCE IN TRANSIT All plant material must be protected from the adverse effects of the elements during handling and transport. Plants shall be transported in fully enclosed pan technician type trucks. During transit from the nursery to the site, monitor the plants to ascertain that undue movement or disturbance is not occurring and that moisture levels are suitable to ensure plant health. 9.6.2 LOCATIONS If it appears necessary to vary plant locations and spacings to avoid service lines, or to cover the area uniformly, or for other reasons, seek approval from Superintendent before varying plant locations. 9.6.3 PLANTING CONDITIONS Do not plant in unsuitable weather conditions such as extreme heat, cold, wind or rain. In other than sandy soils, suspend excavation when the soil is wet, or during frost periods. Refer to Plant Specification for palm requirements. 9.6.4 WATERING Thoroughly water the plants before planting, immediately after planting, and as required to maintain growth rates free of stress. 9.7 PLACING Remove the plant from the container with minimum disturbance to the root ball, ensure that the root ball is moist and place it in its final position, in the centre of the hole and plumb, and with the top soil level of the plant root ball level with the finished surface of the surrounding soil. 9.7.1 BACKFILLING Backfill with topsoil mixture. Lightly tamp and water to eliminate air pockets. Ensure that topsoil is not placed over the top of the root ball, so that the plant stem remains the same height above ground as it was in the container. AECOM 8
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Doonella – Stage C
9.8 SPRAYING
9.8.1 REPORTING
Report any evidence of insect attack or disease amongst plant material as soon as it is noticed.
9.8.2 SPRAYING
Spray with an insecticide and/or fungicide approved prior to use, in accordance with manufacturer's
recommendations and to comply with statutory and health requirements.
9.9 PLANT MATERIALS
All tree planting stock shall conform with NATSPEC Guide: Specifying Trees. At the time of delivery all
plants shall conform to the specified minimum size and nominated container size, referenced in the Plant
Schedule.
The following tree stock selection & installation notes should be read in conjunction with the
NATSPEC Guide.
1. A qualified Arborist is to inspect the selected tree stock in the nursery and provide certification of
compliance.
2. The Landscape contractor will provide photographic evidence and arborist certification documents
of the compliant stock to the Landscape Architect.
3. The Landscape Architect will provide the above documentation to Noosa Shire Council for
information.
4. Tamper proof tags will be attached in the nursery to the selected, compliant stock and will remain
on the trees through installation, on maintenance and off maintenance inspections. They should
only be removed following off maintenance sign off.
A Provisional Sum for Arborist Inspection and NATSPEC Certification should be allowed for when tendering
the works.
Use plants with the following characteristics:
Large healthy root systems, with no evidence of root curl, restriction or damage.
Vigorous, well established, free from disease and pests, of good form consistent with the
species or variety.
Hardened off for wind conditions, not soft or forced, and suitable for planting in the natural
climatic conditions prevailing at the site.
9.10 TREES SUPPLY AND DELIVERY
9.10.1 HANDLING
Trees shall be handled with extreme care at all time during unloading at the point of supply. Damage to
foliage, branches or trunks due to carelessness during the unloading, transportation or planting procedure
may cause rejection of the tree by the Superintendent.
Should the condition of any specimen tree decline or the tree die, the Contractor shall remedy its condition
or remove and replace the tree; of the size, species and condition of the approved specimen, at their cost
along with the rectification of any damage to the landscape or built structures.
9.10.2 SUBSTITUTIONS
There shall be no substitutions of any approved tree without prior approval in writing from the
Superintendent. Should difficulty arise in securing the specified plant material at the required size, the
Contractor shall inform the Superintendent immediately, to determine an appropriate action.
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Doonella – Stage C 9.10.3 REJECTION The Superintendent or nominated representative reserves the right to reject any tree considered unsuitable at any stage during the inspection and installation period. The Superintendent shall reject any tree that does not meet the physical and aesthetic condition of the approved sample at the point of supply. If the material has been rejected after installation, rejected material will be removed and replaced with a replacement of equivalent size, condition of the approved sample within 14 days of the issue of an instruction and all costs shall be borne by the contractor, inclusive of additional consultants fees to reinspect material at the point of supply where considered necessary. A photograph of the replacement shall be supplied for approval prior to installation. 9.10.4 PHOTOGRAPHIC VERIFICATION The Contractor shall supply the Superintendent with two (2) dated sets of photos of all proposed trees within fourteen (14) days of the signing of the contract and two (2) dated sets on the completion of root pruning as proof of this operation and condition of the tree. The Contractor is advised that representative photographs and sources of supply are to be provided with the tender documents. Where the photographs do not confirm the conformance of the tree to the specification, and the point of supply is outside of a 100km radius from the site, the Contractor shall pay all costs in relation to travel expenses incurred by Superintendent or their representative in the inspection of the trees. 9.10.5 TREE CHARACTERISTICS It shall be the Contractors responsibility to secure and maintain the trees for the duration of the Contract. Any tree not conforming to the approved standard shall be rejected by the Superintendent / Landscape Architects and replaced at the Contractors expense. All trees shall bear a growth habit typical of the species and shall be supplied to site in a healthy condition, free from pest and fungal infestation and physical damage. Trees shall be pruned as necessary to promote a balanced canopy structure appropriate to the species. Materials: The Contractor shall conform to the following specification. All measurements shall be verified by the Superintendent prior to delivery and installation. Identification of Trees: All trees shall be true to species and/or approved cultivars. The contractor shall label each specimen with both species nomenclature and a code number for reference. Labels shall be water resistant, secured to the tree and capable of lasting the term of the Contract. 9.11 STAKES AND TIES Requirement: Container Trees Provide hardwood stakes that are straight, free from knots or twists, pointed at one end. Drive stakes into the ground at least one third of their length, avoiding damage to the root system. Stake Sizes: For plants > 2.5 m high: Three 50 x 50 x 2400 mm stakes per plant. For plants 1 - 2.5 m high: Two 50 x 50 x 1800 mm stakes per plant. For plants < 1 m high: One 38 x 38 x 1200 mm stake per plant. Ties: Provide ties fixed securely to the stakes, one tie at half the height of the main stem, others as necessary to stabilise the plant. Tie types: 50 mm elastic hessian webbing installed and stapled to the stake. Ties shall be fastened to adequately restrain the tree without causing damage to the trunk. Ensure ties allow provision for trunk growth. Remove existing nursery ties. AECOM 10
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Doonella – Stage C
9.12 TREE SURGERY
9.12.1 GENERAL
Carry out remedial tree surgery to all existing trees within and closely nearby the site. All tree surgery work
shall be carried out by a qualified arboriculturalist, in a safe and if necessary progressive manner, and
subject to prior approval.
9.12.2 NOTICE
Give sufficient notice before commencing tree surgery.
9.12.3 PRUNING
General: Comply with the recommendations of AS 4373.
9.12.4 OPERATIONS
Remove dead and decayed wood or limbs that have been broken without further wounding of the tree. If
the trees show signs of deterioration after the work has been done, carry out a program of feeding or soil
amelioration such as soil aeration, irrigation or incorporation of organic material. Continue this program until
the end of the planting establishment period.
9.12.5 PRECAUTIONS
Avoid damage to trees being treated or to nearby trees and surroundings. Do not use trees as anchors for
winching operations or bracing. Provide bracing as necessary before cutting to prevent uncontrolled
breakages and damage to surroundings.
9.12.6 DISPOSAL
Remove all pruning, branches, debris, etc. from site. If the Superintendent deems the material suitable for
mechanical chipping, this operation may be approved.
9.12.7 DRESSING
Apply a fungicidal wound dressing to cut surfaces or approved aboricultural practice, immediately after
cutting to prevent incursion of rot or disease.
9.12.8 ROOT PRUNING
Do not unduly disturb the remaining root system.
9.13 EXISTING SERVICES PROTECTION
Protect and do not disturb existing in ground services. Should a conflict arise with the root ball location /
size the Superintendent shall be advised immediately for direction.
Root balls may be modified on site under the supervision of a qualified arboriculturalist to suit specific tree
positions; however this should be avoided, as it will place further undue stress on the tree.
Services may be bridged to avoid disturbance and disperse vertical loads into a horizontal plane. Details
are to be submitted to the Superintendent for approval prior to commencement of work.
END OF SECTION
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Doonella – Stage C
10. MULCH
10.1.1 INTERPRETATION
Mulch is to be free of deleterious and extraneous matter such as soil, weeds and sections of timber. Use
organic mulches, which are free of stones. All organic mulches shall be composted prior to delivery and
spreading on-site.
10.1.2 APPLICATION
Spread mulches evenly to 100mm depth or as otherwise noted on the Drawings. Finish 25mm below
surrounding finished levels or as detailed. Grade the finished surface evenly between design surface levels.
Place mulch clear of plant stems, and rake to an even surface flush with the surrounding finished levels.
Spread and roll mulch so that after settling, or after rolling, it is smooth and evenly graded between design
surface levels sloped towards the base of plant stems in plantation beds, and not closer to the stem. Mulch
all trees located within grass areas with a 1500mm dia mulch ring to base of tree. Ensure trunk is clear of
mulch.
10.1.3 MULCH TYPE
Organic mulch – Composted Medium Forest Blend Mulch containing a blend of leaf, small sticks
and bark matter. Tub ground mulch, tip mulch or uncomposted mulch will not be accepted. Mulch
is to be certified as weed free by supplier. Certification & sample to be provided prior to installation.
END OF SECTION
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Doonella – Stage C
11. IRRIGATION
11.1 PROJECT SCOPE
Note:
There is no formalised irrigation system as part of this stage of landscape works. During construction and
throughout the maintenance phase of the project, the contractor is to carry out watering to ensure the
longevity of the softscape. Refer Tender Schedule for specific duration and allowances for water truck use.
END OF SECTION
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Doonella – Stage C
12. TIMBER WORK - BOLLARDS
12.1 GENERAL
CROSS REFERENCES
Refer to the General requirements section.
12.1 TIMBER SCHEDULE
12.1.1 BOLLARDS
TYPE MATERIAL SIZE FINISH
Bollard Type B1 Hardwood Refer to detail 02-904 on Timber – 2 Coats CN oil
Timber drawing L-4304-STAGE C-904 with 10Y Brown Oxide
Fixed Timber Bollard tint in 20lt CN oil.
12.1.1 FENCE
ITEM MATERIAL SIZE FINISH
F1 Post (incl gate H4 treated hardwood 100mm x 100mm with 10mm Timber – 2 Coats CN oil
posts) arris to verticle sides with 10Y Brown Oxide
tint in 20lt CN oil.
F1 Top Rail H4 treated hardwood 100mm x 100mm with 10mm Timber – 2 Coats CN oil
arris to top side with 10Y Brown Oxide
tint in 20lt CN oil.
12.2 TIMBER QUALITY
SAWN / DRESSED TIMBER: All timber shall be hardwood to AS 2082 to the stress grade nominated.
Where timber is specified as ‘appearance’ or dressed grade it shall also meet the requirements of the
stress grade. All timbers, imported to site or where timber is shown on drawings to be selected from milled
site timbers is to meet the durability and stress grade of class 2. Where timber is in contact with the ground
all timber is to be Durability Class 1. Any sapwood shall be treated to level H4. All sawn timber is to be
branded as complying with the requirements of AHQC (Australian Hardwood Quality Council).
TIMBER CONNECTIONS: Structural fasteners shall be located in sound timber avoiding timber defects.
Fasteners shall be installed in accordance with Manufacturer’s instructions. All bolts, nuts, washers, nail
plates and brackets to be hot dipped galvanised to AS 1650. Additionally, bolt shanks and washers bearing
against timber shall be protected with Dulux Amercoat 385 applied in accordance with the manufacturer’s
specification and properly cured before installation. Bolt holes to be 10% greater than the nominal bolt
sizes. Position bolts to facilitate tightening. Coat all bolt shanks with CN Emulsion before installation.
Bolts to be snug tight (do not over tighten). Washers are to be placed under all bolt heads (except where
cuphead bolts specified) and nuts.
Timber Quality
Timber shall be graded and audited under the Australian Hardwood Quality Control Program. At the time of
grading, the bottom and sides of the plank shall conform to Structural Grade No. 2 (for Forest Red Gum
Structural Grade 1) (AS 2082) while the exposed surface of the deckwood shall conform to the following:
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Doonella – Stage C
Freedom from the following on the sawn upper face
Loose and unsound knots
Shakes
Loose Gum Veins
Knot Holes
Termite Galleries
Want, wane and bark
Checks wider than 1mm
End splits wider than 1mm
Included bark
Borer holes larger than 3m
Additionally permitted defects shall not cover more than 15% of the top face.
Preservative Treatment
Treatment, natural durability classes and combinations thereof shall conform to AS 1604, TUMA (Timber
Utilisation and Marketing Act Qld 1987) and TMA (Timber Marketing Act NSW 1977). Where timber is in
contact with the ground sapwood shall be treated to Level H5, in accordance with TUMA. Where timber is
not in contact with the ground, sapwood shall be treated to Level H4 in accordance with TUMA. A
certification of treatment shall be provided.
Species
Timber shall be selected from the following species.
spotted gum
tallowwood
forest red gum
ironbark
blackbutt (Qld sourced and vein free)
Tolerances
Unless noted otherwise, the actual cross sectional dimensions of the timber may vary from the dimensions
stated by the following;
width +_ 3mm
thickness -0, +2mm
length 0
length (cut to size) +- 5mm
END OF SECTION
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Doonella – Stage C
13. FENCES
13.1 GENERAL
All fences to be powder coat steel / Aluminum to meet Ipswich City Council requirements. Location of
fences to be confirmed on site with landscape superintendent.
13.1.1 FENCE TYPE 1
Supply and install Fence Type 1 to the locations where shown on drawings. The fence system shall
comprise of powder coated tube posts, hardwood top rail with horizontal galvanised fencing wire.
Latch: Hot dip galvanised heavy duty top latch and galvanised drop bolt
Construction: Refer to details on drawing L-4304-Stage C-903
ITEM DESCRIPTION SIZE
F1 Post (incl gate posts) H4 treated hardwood Refer to timber
schedule
F1 Top Rail H4 treated hardwood Refer to timber
schedule
Fencing wire (horizontal) Galvanised medium tensile fence wire 2.5mm
Bracing Hot dip galvanised steel bracing rod & tensioner 16mm rod
with painted cold galvanised end plates and welds
Gate frame & diagonal Hot dip galvanised RHS steel gate frame - all joints 1500mm x 1500mm
brace rod CFW gate frame RHS 38mm
x 25mm x 2.0mm
Hot dip galvanised steel bracing rod welded to
frame corners 12mm brace rod
Hinges Hot dip galvanised heavy duty hinge welded to -
gate frame & coach screwed to timber post
13.1.2 FENCE TYPE 2
Supply and install Fence Type 2 to the locations where shown on Civil Engineers drawings.
ITEM DESCRIPTION SIZE
F2 Supplier: ‘ARC Fences’ or approved equivalent. Install as per 1200H
suppliers specification.
END OF SECTION
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Doonella – Stage C 14. MAINTENANCE 14.1 HARD AND SOFTSCAPE ESTABLISHMENT PERIOD The work contained in this section comprises the establishment maintenance and defects liability of all works executed under this contract. Maintain the contract areas for a period of 12 weeks after the date of Practical Completion. Maintenance of the works prior to the date of Practical Completion shall not be included in this period. Complete maintenance works schedules and submits to the Superintendent as a record of the maintenance activities. Promptly make good any defects or damage resulting from defective construction, materials or workmanship to the complete satisfaction of the Superintendent during this period. In the event of any failure rectify defective work the Superintendent may instruct that the work be carried out by another company, the cost of which will be charged to the Contractor. 14.1.1 WATERING Implement an appropriate hand watering regime to supplement the irrigation system if required, or in times when the irrigation system is being maintained or has failed. The Contractor shall monitor the irrigation system as an integral part of the maintenance program. Frequency: Weekly or as required. 14.1.2 WEEDING During the Contract period remove weed growth that occurs throughout all contract areas. This shall be executed regularly so that at weekly intervals (at least) the landscape contract areas may be observed in a completely clean and tidy condition, free from rubbish and weeds. 14.1.3 PLANT / TREE REPLACEMENT Immediately replace plants / trees that die or fail to thrive, are damaged or stolen, with plants of the same species and of similar size and quality, unless otherwise specified. Replacement plant material shall have the maintenance period extended in accordance with the Contract conditions. Frequency: as required AECOM 2
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Doonella – Stage C 14.1.4 STAKES AND GUYS Adjust and/or replace stakes and ties where required. Remove staking and guying when instructed by the Superintendent Frequency: monthly 14.1.5 PRUNING The design character of planting areas determines the intensity of the pruning program and recognised pruning practices for each species. Heavy pruning prior to public events and the like may be required at the direction of the Manager. In the event of major pruning or tree surgery a qualified Horticulturist or tree surgeon shall undertake these works. In general, shrubs and trees will be tip pruned to ensure a strong, sound form and dense, bushy appearance. Removal of overhanging branches or foliage that prevents proper function of a space, e.g. pathways, seating areas, etc shall be implemented. A thinning out pruning practice will be implemented to remove plants that are in decline, die or inhibit the growth of surrounding plants. All prunings and other debris shall be disposed of off site. Tree Surgery: Tree surgery work required to maintain trees shall be carried out by a qualified horticulturist or tradesman skilled in arboricultural techniques, in a safe and if necessary, progressive manner and subject to prior approval. Remove dead and decayed wood or limbs that have been broken or damaged. Make all cuts into live wood. If the trees show signs of deterioration after the work has been done, carry out a program of feeding or soil amelioration such as soil aeration, irrigation or incorporation of organic material. Avoid damage to trees being treated or to nearby trees and surroundings. Provide bracing as necessary before cutting to prevent uncontrolled breakages and damage to surroundings. Remove all pruning, branches, debris, etc. from site. If the Manager deems the material suitable for mechanical chipping, this operation may be approved. Apply a fungicidal wound dressing (Colgraft or equal) to cut surfaces or approved horticultural practice, immediately after cutting to prevent incursion or rot or disease. Maintain shrubs and groundcovers in the forms intended to maintain the designed planting layering / structure as follows: Frequency: weekly. 14.1.6 MULCHED SURFACES Organic Mulch: Mulched surfaces are to be kept clean and tidy and free of any deleterious material and foreign matter. Reinstate depths to a uniform level of 100mm with organic mulch equal to medium grade hoop pine bark mulch, free of any wood material impregnated with CCA or similar toxic treatment. Frequency: monthly Sugarcane Mulch: Sugarcane mulch to base of planted bio-retention swales to be kept free of any deleterious material and foreign matter. Top-up after storm events or as necessary. AECOM 3
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Doonella – Stage C 14.1.7 PEST AND DISEASE CONTROL Spray for pests and disease infestations when the pest and fungal attack has been positively identified and when their populations have increased to a point that will become detrimental to plant growth. Apply all pesticides to manufacturer's directions. All safety controls shall be implemented prior to chemical spraying and site administration notified of the intent to spray. Frequency: weekly inspection 14.1.8 CONCRETE EDGING Undertake the following maintenance practices: Replace broken, chipped, subsided, failed or cracked concrete edging. Remove weed growth in paved areas, between cracks and joints, with an approved herbicide. 14.1.9 TIMBER Report any structural damage to timber kickrails and bollards. Repair as required using materials and methods conforming to the specified design. 14.1.10 FERTILISING Apply a balance of man made and natural slow release fertiliser to all planting areas. A slow release fertiliser equal to Nutricote or other granular fertiliser (e.g. Osmocote), 3 month formulation, 16 - 4. 4- 8.3 NPK should be used as well as a natural fertiliser such as Dynamic Lifter or equal. The fertilising program shall be determined on the basis of the periodic soil test results, and amended as necessary. Soil tests shall be carried out by the contracts on a 2 monthly basis. Generally check for signs of nutrient deficiencies (yellowing of leaves, failure to thrive), and adapt fertiliser regime to suit. Fertiliser should be applied at the beginning and the end of the (summer) growing season. 14.1.11 SOIL MIXES Soil depths are to be maintained at the specified depths. Replenish any areas of subsidence with topsoil equal to that nominated in the Specification. 14.1.12 SUBSOIL DRAINS Ensure drains are working in an efficient manner, free from sediment build-up, litter and obstructions. Flush out and clean drain as required: Reinstate damaged or sunken drains. 14.1.13 FURNITURE Secure and retighten all bolt and screw fixings, replace if necessary broken or missing fixings with those specified. All furniture shall be recoated with applied finishes prior to the final certificate / handover being issued. AECOM 4
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Doonella – Stage C
14.1.14 MAINTENANCE SCHEDULE AND LOG BOOK
Use the enclosed schedules as a minimum maintenance program and recording process. Record when
and what maintenance work has been done and what materials, including toxic materials, have been used.
14.2 COMPLETION
Notwithstanding anything to the contrary of the Contract, the Superintendent may instruct to perform urgent
maintenance works.
Trees and shrubs shall show signs of healthy vigorous growth and be free from disease and not exhibit
signs of stress. Trees shall be appropriately staked.
Top up mulch levels prior to handover.
END OF SECTION
AECOM 5