Project Specification - Hurunui District main street... · 2.0 Quality Assurance 4 2.1 Introduction...

Amberley Main Street Upgrades

Hurunui District Council

05th August 2010

Project Specification

AECOMAmberley Main Street UpgradesProject Specification

05th August 2010

Project Specification

Prepared for

Hurunui District Council

Prepared byAECOM New Zealand LimitedLevel 6, 76 Cashel Street, Christchurch 8011, P O Box 710, Christchurch MC, Christchurch 8140, New ZealandT +64 3 363 8500 F +64 3 363 8501 www.aecom.com

05th August 2010

60154190

© AECOM New Zealand Limited 2010

The information contained in this document produced by AECOM New Zealand Limited is solely for the use of the Client identified on the coversheet for the purpose for which it has been prepared and AECOM New Zealand Limited undertakes no duty to or accepts any responsibility to anythird party who may rely upon this document.

All rights reserved. No section or element of this document may be removed from this document, reproduced, electronically stored or transmittedin any form without the written permission of AECOM New Zealand Limited.


05th August 2010

Quality InformationDocument Project Specification

Ref60154190

l:\design + planning\aecom nz\projects\amberley main street\contract documentnzs 3910\4.0 project specification amberley main st - cw.doc

Date 05th August 2010

Prepared by Kim Goodfellow

Reviewed by Gordon Peebles

Revision History

Revision RevisionDate Details

Authorised

Name/Position Signature

21-Jul-2010 For Tender Mark GordonRegional Manager


05th August 2010

Table of Contents1.0 General 1

1.1 Scope of Work 11.2 Establishment on Site 11.3 Programme of Work and Meetings 11.4 Supervision 11.5 Hours of Work 11.6 Health and Safety in Employment Act 1992 21.7 Dust Control 21.8 Contamination of Waterways 21.9 Extension of Time for Inclement Weather 31.10 Setting Out 31.11 Services 31.12 Progress Photographs 4

2.0 Quality Assurance 42.1 Introduction 42.2 Contract Quality Plan 42.3 Hold Points 52.4 Inspection of Works 6

2.4.1 General 62.4.2 Prior to Defects Liability Period 62.4.3 During Defects Liability 62.4.4 Reimbursements 6

2.5 Recommended Checklist for Inspections 62.6 Re-inspection by Engineer 72.7 Samples 82.8 Completion of Works 82.9 As Built Drawings 8

3.0 Traffic Management 83.1 General 83.2 Level of Temporary Traffic Management 83.3 Powers and Responsibilities 93.4 Training Requirements 93.5 Traffic Management Plans (TMP) 93.6 Equipment 9

4.0 Related Specifications 104.1 Related Specifications 10

5.0 Site Preparation/Earthworks 125.1 General 125.2 Clearing 125.3 Excavation and Removal 125.4 Weedspraying 135.5 Removal of Historic Light Pole 135.6 Unsuitable materials 135.7 Topsoil Stripping 135.8 Cultivation Prior to Planting 145.9 Cut to Waste 145.10 Cut to Fill 14

5.10.1 Subgrade Improvement Layer 145.11 Reinstatement 145.12 Imported Hardfill (Provisional Item) 14

6.0 Services 157.0 Treatments to Existing Trees 158.0 Pavement and Road Markings 15

8.1 Test Pits 158.2 Granular Pavement Materials 15


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8.3 Concrete 168.4 Sealing Chips 168.5 Asphaltic Bitumen 168.6 Asphaltic Concrete 168.7 Subgrade Improvement Layer 168.8 Pavement Construction 168.9 Sealing 178.10 Road Markings 18

9.0 Traffic Management and Temporary Works 189.1 General 189.2 Level of Temporary Traffic Management 199.3 Traffic Management Plans and Implementation 19

10.0 Drainage 1910.1 Kerb and Channel (T01/T02/T03 Machine laid) 1910.2 Sumps 2010.3 Infiltration Trenches (Southern Gateway Only) 2010.4 Stormwater Specifications 20

11.0 Lighting and Electrical 2011.1 General 2011.2 Lighting Installation 2111.3 Testing and Approval of Lighting 2111.4 Signage Lights (L01) 2111.5 Up Lights for Poles (L02) 2111.6 Architectural Lighting for Cob Cottage Façade (L03) 2111.7 LED Light Bollard (L04) 2111.8 Above Ground Up Lights for Trees (L05) 2111.9 Lighting Control 2111.10 Lighting Standards 2211.11 Cabling 22

11.11.1 General 2211.11.2 Underground Cables 2311.11.3 Termination’s 2311.11.4 Termination/Junction Boxes 2311.11.5 Cable Trenches 23

12.0 Footpath and Surfacing 2412.1 Topsoil (S01) – refer section 13: Planting Works 2412.2 Mulch (S02) – refer Planting Works of this specification. 2412.3 River Stones (S03) 2412.4 Exposed Aggregate (S04) 2412.5 Exposed Aggregate Concrete for Driveways (S04A) 2512.6 Timber Retaining (S05/5A) – refer Structures section of this specification. 2512.7 Timber Inserts (S06) 2512.8 Timber Retaining Walls (S07) 2512.9 Timber Poles (S07A) 2512.10 Cor-ten Steel Fittings (S09) 2512.11 Geotextile (filter fabric) – refer Drainage section of this specification 2512.12 Gravel (S11) 2512.13 AP40 Compacted Basecourse (S12) 2512.14 Timber Edging (S13) 2512.15 “Hurunui Pathway” Plaques (S14) 2612.16 Polythene Liner (S15) 2612.17 Asphalt Areas (S16) 26

13.0 Street Furniture 2613.1 LED Light Bollards (F01 and L04) 2613.2 Rubbish Bins (F02) 2613.3 Seats (F03) 2613.4 Type A Station (F04) 2613.5 Type B Station (F05) 26


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13.6 Relocation of Existing Picnic Tables (F06) 2613.7 Relocation of Chamberlain Park Entry Sign 27

14.0 Structures 2714.1 Timber Retaining Wall (S05/5A) 2714.2 Amberley Sign and Poles 27

15.0 Irrigation 2715.1 General 27

16.0 Planting Works 2816.1 Timing of Planting Works 2816.2 Workmanship 2816.3 Planting Materials - General 3016.4 Acceptance of Soil Conditions 3116.5 Topsoil (S01) 3116.6 Topsoil Conditioning 3116.7 Cartage of Topsoil 3216.8 Trees (P01 and P08) 3216.9 Container Grown Shrubs (excludes root trainer) 3216.10 Stakes and Ties 3216.11 Compost 3216.12 Mulch (S02) 3216.13 Fertiliser (Tree and Shrub Planting only) 3216.14 Delivery and Temporary Storage 3316.15 Loss, Damage or Theft of Plants 3316.16 Rubbish 33

17.0 Grassed Areas 34Refer to General Arrangement Drawings showing areas of proposed grass. 34

18.0 Defects Liability and Maintenance 36

Appendix ASoft Landscape Maintenance Schedule............................................................................................... A

Appendix BLandscape Construction Monthly Establishment Report ....................................................................... B


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1.0 General

1.1 Scope of WorkThe client has a set available budget for the project, therefore the scope of work to be constructed will bedependent on the prices submitted by the successful Tenderer. After award of contract, the Engineer will confirmthe extent of work prior to construction starting on site.

1.2 Establishment on SiteThe Contractor shall make his own arrangements for any offices, workshops, storage areas, spoil dumps etcrequired for the contract. Toilet and washing facilities shall be provided by the contractor and there shall bemaintained in a clean, hygienic condition.

Telephone contact with the Contractor's representative shall be provided and maintained at all times duringworking hours.

The Contractor should make his own arrangements in respect of any use of private land outside the limits of thecontract works and he shall be responsible for any damage or claims for compensation arising from such use.

1.3 Programme of Work and MeetingsThe Contractor shall provide a detailed programme, scheduled on a daily basis, of operations and the proposedresources that will be committed to the contract, before starting work on the site. This programme must show acritical path analysis. The programme shall show how the work can be carried out with the minimum ofinconvenience to all road users and shall be in bar chart form with a line for each item in the schedule withprovision for inserting the actual time occupied and quantity achieved for each operation. The programme shallbe submitted together with QC-1 (Refer Section 2.4: Recommended Checklist for Inspections)

Within one week of receipt of the Contractors’ detailed programme the Engineer and the Engineers’Representative shall meet with the Contractors’ Representative at the office of the Engineer to discuss theprogramme and any other matters affecting the execution of the works.

These meetings will be repeated weekly until the date of issue of the Certificate of Practical Completion. A furthermeeting will be held within one week of the issue of the Practical Completion Certificate and monthly thereafteruntil the date of issue of the Maintenance Certificate.

An updated programme showing progress achieved shall be forwarded to the Engineer immediately after the endof each fortnightly period of the contract. If this report is not received in time, the Engineer will make his ownassessment of progress and will deduct the cost of doing so from contract payments.

1.4 SupervisionThe Contractor’s Representative shall adequately supervise the works to ensure the works are constructed inaccordance with the requirements of the Contract to the approved programme. Where the quality of the works areto less than the required standard, or the works are delayed without extensions of time issued, the Contractorshall increase the level of supervision and resources to ensure compliance. The Contractor’s Representative shallbe contactable on mobile phones and shall return phone messages from the Engineer’s Representative, within 3hours of the message.

1.5 Hours of WorkThe permitted hours of work shall be between half an hour after official sunrise to half an hour before officialsunset from Monday to Saturday inclusive. However, work shall not continue when there is insufficient daylight toallow a person or equipment to be clearly visible at 100 metres.

The Contractor shall ensure there are sealed two lane, two way carriageways to be trafficked on all approachesand departures at all time.

No work affecting the traffic lanes may be carried out during the following period unless otherwise agreed with theEngineer:


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Times of peak traffic flow; Night work must be approved by the Principal; Recognised holiday periods; Significant events ; and Any specific requirements.

During significant events the Contractor shall ensure no work shall be done on the carriageway to interfere withthe events and the carriageway surface vehicles will be using is sealed and road marked. No manual trafficmanagement is to be implemented over these periods.

Should the Contractor wish to work outside these hours to avoid peak traffic and pedestrian volumes, then heshall obtain the written approval of the Engineer. Any such requests shall be received by the Engineer a minimumof 48 hours prior to the intended commencement of the extended working hours.

No work shall be carried out on Sundays, public holidays, Fridays before a long weekend, or the Christmas period(Saturday 19th December 2009 to Sunday 10th January 2010 inclusive), with the exception of plant maintenance,work to ensure the security of the site, or traffic way maintenance, unless the prior approval of the Engineer isobtained. Prior to leaving site over the Christmas period mentioned above, the Contractor shall ensure alltrafficked areas shall be sealed.

1.6 Health and Safety in Employment Act 1992The Contractor shall comply with the Health and Safety in Employment Act 1992 and subsequent HSE(Construction) Regulations taking all necessary steps at all times to ensure the obligations placed on the Principalunder the provisions of the Act are complied with at all times. The Contractor shall advise the Principalimmediately of any obligations not being fulfilled.

The Contractor shall take all practicable steps to ensure the safety of the public and persons working in the placeof work and in the vicinity of the place of work and shall comply in all respects with the Health and Safety inEmployment Act 1992 and in particular, but without limitation appoint an accredited safety supervisor to co-ordinate site safety and attend all site meetings.

The Contractor shall establish and maintain a register of hazards for the site in which the Contractor shall record anyidentified significant hazard, the date it was identified and any steps taken to eliminate, isolate or minimise thesignificant hazard.

The hazards should include, but not be restricted to:

Traffic Underground telecommunication cables Existing drainage and ditches Safety Barrier

The Contractor shall ensure the Health and Safety Plan and implementation that comply with NZTA MinimumStandard Z/5 and submit it to the Engineer within 7 days of tender acceptance. The Contractor shall supply amonthly report and shall make copies of Health and Safety incident and hazard registers etc. available for theEngineer’s inspection.

1.7 Dust ControlThe Contractor shall take all necessary measures to prevent dust nuisance to adjacent properties, pedestriansand road traffic. Allowances shall be made for water spraying of the contract area together with any otherapproved methods the Contractor may wish to employ.

Should a dust nuisance be created and the Contractor's remedial measures be insufficient in the opinion of theEngineer, then work in the affected areas shall cease until effective and satisfactory measures have been takenby the Contractor.

1.8 Contamination of WaterwaysThe Contractor shall take all the necessary precautions to prevent the contamination of watercourses and stockwater races by fuel spillage, concrete float water, effluent, and runoff from contaminating materials or silt from the


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works. This applies to all work sites, stockpile sites, borrow sites and dump sites. The Contractor shall satisfyany requirements set by the Regional Council.

1.9 Extension of Time for Inclement WeatherThe contract period includes an allowance for working days being lost because of inclement weather. This isspecified in the Special Conditions of Contract Clause 10.3.1. Only those delays, which affect work critical to thetimely completion of the contract (i.e. critical path activities), will be considered as reasons for extending the timeto the due date for completion. In the case of the effects of inclement weather these delays will be deducted fromthe allowance in Clause 10.3.1 of the Special Conditions of Contract.

Weather conditions shall be recorded on a daily basis on the QC-19 Checklist. It shall remain the Contractor’sresponsibility to claim all extensions as prescribed by the General Conditions of Contract.

1.10 Setting OutThe Contractor shall be responsible for setting out the works from the information provided on the Setting Outdrawings.

The Contractor shall preserve all set out marks provided by the Engineer until the works are completed. TheContractor on completion of the contract shall remove all pegs established by the Contractor during the course ofthe works.

If, during the setting out of any section of the works, the Contractor disagrees with information supplied by thecontract documents or suspects an error, he shall notify the Engineer immediately and submit QC-4 Checklist asconfirmation.

Where appropriate, the Contractor shall locate accurately and record on a plan the positions and number ofexisting traffic facilities road edge marker posts, route position markers, etc and to allow for the reinstatementafter completion of the works.

1.11 ServicesThe Contractor shall be satisfied by enquiry to the appropriate utility authorities as to the location of all servicesbefore commencing any operation. The Contractor is to verify the location of all the new services prior toconstruction commencing. The Contractor shall take all steps necessary to prevent damage to, or accidentsarising from, interference with such cables, ducts, underground structures, poles and overhead lines.

The Contractor throughout the duration of this contract shall maintain existing private services, such as drainageand domestic water supplies, in full working order. Should the Contractor damage a privately owned service, heshall immediately report the damage to the owner and immediately arrange for the repair to the service at his costunless the owner chooses to arrange for the repair and invoice the Contractor.

All trenches shall be hand dug around the existing utility where within one metre (or a safe distance approved bythe owner) of such services. Adequate notice of commencement of excavation shall be given to the utilityauthority and clearances obtained. Utility authorities may require a representative to be present onsite whenexcavations are close to their services, the contractor must make provision for this. All trenches that are to be builtover shall be backfilled with approved imported fill.

The Contractor shall co-operate with the utility authorities during any works and shall allow for any delay orinterruption to the construction programme necessitated by the relocation of services.

Should the Contractor uncover any services, which conflict with the proposed works, the Contractor shallimmediately advise the Engineer who will arrange for the relocation if required. Any damage occurring to servicescaused by the Contractor shall be reported immediately to the utility authority, by the Contractor, and anyassociated costs will be at the Contractor's expense.


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1.12 Progress PhotographsThe Contractor shall provide a photographic record of the construction works throughout the Contract Period.

The purpose of the photographic record is to record the condition of site and adjoining property and facilities to beretained that may be damaged by the Contract Works, to confirm compliance with the Specifications for worksthat will be covered, and to assist in the evaluation of Variation claims.

The extent of photographic record shall be commensurate with the scale and complexity of the Contract Worksand shall be as directed by the Engineer.

2.0 Quality Assurance

2.1 IntroductionThis contract shall be completed in accordance with the requirements of either TNZ Specification Q/3:1995 orQ/4:1995 for High or Normal Quality Assurance Level Contracts - TQS1:1995 or TQS2:1995 respectively. Thequality assurance level shall be as required by the section 1.10 of the Instruction for Tendering.

The Contractor is responsible for quality control measures which incorporate all techniques including checking andtesting required to ensure construction meets all the requirements of the design drawings and specifications.

The Contractor shall take sufficient samples, measurements, or other forms of testing to ensure that all componentsof the work comply with the specified requirements. Sampling and testing shall be carried out by a TELARCregistered laboratory at the Contractor’s expense where required by the specification.

The Contractor shall employ a Quality Manager who is not to be on the Project Management team or engaged in theday-to-day operations on the site.

The Quality Manager is responsible for producing and managing the Quality Control Plan, certifying all QualityControl documentation, maintaining a file of all Quality Control documentation, communications and test results andliaising with the Engineer on all matters relating to Quality Control.

If the Engineer tests any part of the works and finds that it is not in compliance with the specified requirements, theContractor shall be liable for the cost of testing, including any costs incurred by the Engineer or Principal. TheEngineer is entitled to take samples, tests, measurements or observations to confirm that the contract specificationsare met.

All necessary producer statements and Contract Quality documentation including Inspection Checklists QC-1 to14 and 19 (or similar approved) shall be provided by the Contractor before the Certificate of Practical Completionis issued. The Engineer will not issue a Certificate of Practical Completion until all the requirements of theContract Quality Plan have been complied with.

2.2 Contract Quality PlanThe Contractor shall prepare and submit to the Engineer for approval, a Contract Quality Plan for these works.The Quality Control Plan shall be submitted within 7 days of acceptance of tender. This shall be certified on QC-1(or similar approved)

The Contractor is specifically instructed that:

(i) No work shall commence until the Contract Quality Plan is approved.

(ii) No work shall be allowed on subsequent activities until the prior activity has been accepted by the Engineer(e.g. the sub-base must be approved before basecourse construction is allowed to start).

While the Contract Quality Control is the full responsibility of the Contractor, the recommended InspectionChecklists are appended. The Contractor’s Quality Plan may be more comprehensive and detailed than thechecks specified.


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The Contractor shall complete and provide Inspection Checklists for each critical phase of the works at theminimum frequency as appended.

The Quality Representative/Manager may only certify inspection Checklists. Certified Inspection Checklists are tobe forwarded to the Engineer to enable an audit of the Contractor's Quality Control. No payment will be certifiedfor scheduled items claimed in monthly progress claims until the Contractor has submitted completed inspectionchecklists and relevant quality control information to the Engineer for work completed. Any inspection checklistwhich indicates non-conforming materials, work outside of tolerance, unacceptable work methods or ifindependent checks, tests or measurements show a variation to those required by the specification shall all beaccompanied by a Non-Conformance Report (NCR).

2.3 Hold PointsA Hold Point is required at specific times during the contract period when the Engineer will inspect and accept theworks for compliance following which the Contractor shall then complete the work associated with the next holdpoint.

Hold Point Quality Control Records to be providedSetting out for kerbs and paths prior to layingbasecourse

Engineer to approve kerb/path positions.

Subgrade layer following excavation and prior toconstruction of fill layer

Compact subgrade with roller. Confirm subgradestrength by undertaking 1 per 20m (grid) ScalaPenetrometer. Record measurement, which shallverify that the CBR subgrade is greater than 5.Agree with Engineer on undercutting, if required.

Concrete path, kerb and Channel line and levels Engineer to inspect string line levels and line priorto pouring concrete.

Sub-Base

Prior to laying basecourse

Carry out 12 compaction tests evenly spaced withinthe area selected. Compaction tests to be carriedout in accordance with TNZ B/2.

That is, determine the maximum laboratory drydensity (MDD) at optimum moisture content(OMC). Contractor shall obtain a minimumcompaction of 95% of MDD.

Basecourseprior to sealing

Carry out 12 compaction tests evenly spaced withinthe area selected. Compaction tests to be carriedout in accordance with TNZ B/2.

That is, determine the maximum laboratory drydensity (MDD) at optimum moisture content(OMC). Contractor shall obtain a minimumcompaction of 98% of MDD.

Stone Mastic Asphalt The Contractor must nominate the job-mix formulaand submit test results demonstrating graphs ofbitumen content versus:Bulk density (t/m3)Air voids (%)VMA (%)Stability (kN)Flow (mm)

NAASRA Roughness The roughness value for acceptance of the workhaving been complete according to thespecification shall be not greater than 60 onaverage, and no reading exceeding 70. In areaswhere readings exceed 70, the NAASRA run shallbe repeated with the averaging distance reduced to


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Hold Point Quality Control Records to be provided20m to identify non-conforming sections.

Set out of all planting areas Engineer to inspect extent of planting works prior toclearing/cultivation or importing of topsoil.

Extent of topsoil placement Engineer to check areas to receive imported topsoilprior to delivery to site.

Plant supply prior to planting Engineer to inspect plant material prior to plantingon site.

Plant placement prior to planting Engineer to check plant positions prior to planting.

All sampling of materials shall be undertaken by a person registered by IANZ for the sampling of thosematerials in accordance with NZS 4407.

All testing shall be undertaken by an IANZ registered laboratory that is registered for the particular test beingundertaken. The Contractor is to provide details to the Engineer of whom they propose to use to undertakethe testing and copies of their IANZ registration.

2.4 Inspection of Works2.4.1 General

Inspection of the works by the Engineer or his representatives will be undertaken only during ordinary hours of workas specified in this document. Accordingly, work that cannot be inspected in terms of its compliance with thedrawings and specification after its completion shall not be undertaken outside these hours except with the priorwritten approval of the Engineer.

2.4.2 Prior to Defects Liability Period

The Contractor shall give advance notice in writing to the Engineer’s site representative of work required to beinspected to the Engineer’s approval as separately outlined elsewhere in this specification, stipulating in thatnotice the elements to be inspected and the date and time that the work will be completed and available forinspection. He shall similarly give notice of any other part of the works that the Engineer or his representativeadvises is required to be inspected. The notice shall be delivered to the Engineer’s site representative at least 24hours before the time that the work is nominated as being available for inspection, or as agreed between theContractor and the Engineer. Should any work not be ready for inspection within one hour of the time nominatedin the notice or agreed by the Contractor and the Engineer, the Engineer shall be reimbursed by the Contractor,for his costs and disbursements for any delay beyond one hour or for any revisits to the site as a consequence ofthe delay. For purposes of assessing costs the delay will be measured to the nearest quarter hour.

2.4.3 During Defects Liability

After being advised by the Contractor that all items for attention under Clause 11.2 of the General Conditions ofContract have been satisfactorily completed, the Engineer will make a maximum of two inspections. If, after thesecond inspection, items are still not properly completed, he will so advise the Contractor and will later makefurther inspection(s) as required to accept all the work and the Engineer shall be reimbursed by the Contractor, forall the costs and disbursements incurred by him in the third and subsequent inspections.

2.4.4 Reimbursements

Such reimbursements to the Engineer as outlined above may be deducted from any monies due or becoming dueto the Contractor. The costs of the Engineer, his representative or any assistance shall be as per Clause 6.4.6 ofthe Special Conditions of Contract. All costs exclusive of GST

2.5 Recommended Checklist for InspectionsThe following is a list of check sheets included with this contract in the Quality Control Plan as appended. Theseforms are recommended for use as part of the requirements of TNZ Q/4:1995 and TQS1:1995.

QC-1 Programming


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QC-2 Weekly Traffic and Pedestrian Control

QC-3 Liaison with Land Owners

QC-4 Initial Survey and Set Out

QC-5 Services Location

QC-6 Culverts

QC-7 Subsoil Drains

QC-8 & 8A Subgrade Common Fill Compaction

QC-9 & 9A Construction Tolerances of Subgrade, Lower Subbase, Subbase, Basecourse & Pavers

QC-10, 10A & 10B Pavement Compaction

QC-11 Material Specifications

QC-12 Subbase and Basecourse Compaction

QC-13 Stabilisation

QC-14 Preparation of Sealing Surfaces

QC-15 Seal Rates

QC-16 Sealing Operations

QC-17 Pavement Marking and RPM Installation

QC-18 Roughness Test on Completed Project

QC-19 Daily Site Work Activity Report

QC-20 Monthly Maintenance Report

Inspections

The Contractor shall notify the Engineer for inspection of the planting works following:

QC-21 Set out for clearing

QC-22 Set out for clearing

QC-23 Installation of silt control measures and prior to topsoil stripping

QC-24 Identification of unsuitable materials requiring removal

QC-25 Prior to the placement of any fill material

QC-26 Prior to the re-spreading of stockpiled topsoil

QC-28 Completion of cultivation

QC-29 Selection of planting material (shrubs and groundcovers etc)

QC-30 Delivery of plants

QC-31 Completion

QC-32 End of Defects Liability Period

2.6 Re-inspection by EngineerShould the Engineer find evidence of non-conforming materials or workmanship or results at variance with anycertified Quality Control Checklist, the Quality Representative/Manager, on request from the Engineer, shallsupply within one working day a Non-Conformance Report (NCR) including a written explanation for the variancedetailing what remedial action has been taken.

The costs associated with any re-inspection by the Engineer, required as a result, shall be deducted from moniesowing to the Contractor.


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2.7 SamplesWhere other sections of this Specification require samples to be provided they shall be submitted to the Engineerfor approval sufficiently in advance of them being required to be incorporated within, or used upon, the ContractWorks, and prior to placing orders and / or purchasing.

Samples shall be submitted with assurance of availability and date of supply, which will not cause delays to theContract Works. Samples approved by the Engineer will become the quality control standard and shall be retainedwith care on Site for comparison throughout the Contract.

2.8 Completion of WorksAll areas affected by the Contractor in undertaking the Contract Works including tracks constructed for access tothe Working Area, shall be reinstated to pre-construction condition or better prior to Practical Completion.

The Contractor shall remove all rubbish and spoil from the site on completion of the works, leaving the site in aclean and tidy condition

2.9 As Built DrawingsThe Contractor shall provide electronic AutoCAD 2000 as-built drawings of all underground work completed on siteunder this Contract.

The following specific information shall be provided marked up on the copies of construction drawings:

1. All irrigation and lighting and electrical works2. Underground trenches and all drainage elements3. Location and reduced levels groundwater drains.4. Extent of formation, location and type of all kerbing, extend of seal, edges of formation, road construction

including subgrade, thickness and nature of material used in the pavement.5. Size, type, class, grade and length of all pipes and cables.6. Details of underground footings or structures.7. Subgrade dig out areas and locations

The Contractor shall supply one set of A3 drawings with all the ‘as built’ information superimposed on the originaldesign.

3.0 Traffic Management

3.1 GeneralTraffic control for the Contract shall be in accordance with New Zealand Transport Agency Code of Practice forTemporary Traffic Management (COPTTM).

This Code includes:

A description of the powers and responsibilities of relevant government agencies, road controllingauthorities, emergency services, utility operators, event organisers, engineers, contractors and any otherrelevant parties.

Practices for the development of traffic management plans for all New Zealand roads. Specifications for temporary traffic management equipment. Requirements and guidelines for the installation and operation of static and mobile temporary traffic

management. Typical layout diagrams for a wide range of activities.

3.2 Level of Temporary Traffic ManagementThe temporary traffic management shall be to level 2 of COPTTM.


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3.3 Powers and ResponsibilitiesThe COPTTM Section A4 outlines the roles and responsibilities of the Road Controlling Authority (RCA), Engineerand Contractor.

In particular to this section the Contractor shall provide details/comply with:

a) Authorisation from the RCA to work on the road.b) Preparation of Traffic Management Plan to be carried out by trained personnel to ensure they have thorough

understanding of the principles of the COPTTM.c) Provide training certificates for site traffic management supervisor (STMS) and traffic controllers (TC),

including a record of training/experience of each STMS and TC.d) Authorisations of temporary speed limits to be completed and submitted to the Engineer (refer COPTTM

Appendix B).

3.4 Training RequirementsSection A5 of COPTTM outlines all personnel who are involved in submitting TMP’s, installing, maintaining orremoving and inspection/auditing temporary traffic management measures, must have current training to thecorrect level of competency for the task and the level of traffic management required.

3.5 Traffic Management Plans (TMP)The Contractor in accordance with Section A6 and Appendix A of COPTTM shall prepare and submit to theEngineer a Traffic Management Plan in accordance with the COPTTM requirements. No work can commenceuntil:

a) The TMP has been approved.b) Speed restriction authorisation has been granted.c) All consent obtained from the RCA for activity within the road reserve.d) Approval of certified personnel.e) Notification of intent to commence work 2 days prior has been given to the Traffic Management Co-

ordinator.The Engineer shall be carrying out Safety Audits of the Contractor’s temporary traffic management measures inaccordance with TNZ COPTTM Appendix, November 2004.

The Engineer has the authority to suspend the Contractor’s STMS and remove all traffic controllers from the sitewithout notice where a serious non-compliance with the TMP is found. A notice of non-conformance (as set out inAppendix F COPTTM) will be issued.

The Contractor will not be paid for any days that do not comply with the signed and accepted TMP.

The signs and layout of traffic control as specified within COPTTM Sections E, F & G, shall comply with the levelof control specified.

Where difficulties are encountered in preparing a TMP that fully complies with the COPTTM, consultation betweenall affected parties shall be carried out to clarify and resolve any issues in the best and practicable way whilstupholding the intend of COPTTM.

In addition to COPTTM requirements, job sites that exceed 400m in length shall have repeater RG-4 signs at400m spacings.

3.6 EquipmentThe Contractor shall comply with the requirements of equipment as set out in Section B of COPTTM


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4.0 Related Specifications

4.1 Related SpecificationsWhere referred to in this specification, standard specifications and publications produced by the NZ TransportAgency (NZTA), Transit New Zealand (TNZ), Christchurch City Council (CCC) and by the Standards Associationof New Zealand (NZS) form part of the contract. Where ambiguities occur, the particular requirements of thisspecification shall take precedence over the Standard Specifications. Some TNZ Specifications may refer to thePW64 General Conditions that are not used for this contract. Relevant clauses of NZS 3910 shall be substituted.

The following specifications are referred to and these are the latest editions including the latest amendments orrevisions up to the date of first advertising the contract for tender.

NEW ZEALAND TRANSPORT AGENCY (NZTA) SPECIFICATIONS

Basecourse B/02 Basecourse Construction

Formation F/1 Earthworks Constructions

F/2 Pipe Subsoil Drain Construction

F/3 Pipe Culvert Construction

F/5 Corrugated Plastic Pipe Subsoil Drain Construction

F/6 Fabric Wrapped Aggregate Subsoil Drain Construction

Material M/1 Asphaltic Bitumens

M/4 Crushed Basecourse Aggregate

M/6 Sealing Chip

M/7 Roadmarking Paints

M/10 Asphaltic Concrete

M/12 Raised Pavement Markers

M/13 Adhesion Agents

M/14 Edge Marker Posts

M/15 Lime for Use in Soil Stabilisation

M/17P W-Section Bridge Guardrail

M19 Tubular Steel Lighting Columns

M20 Long-Life Roadmarking Materials

M23 Road Safety Barrier Systems

Paving and Surfacing and Construction

P/3 First Coat Sealing

P/4 Resealing

P/9 Construction Asphaltic Concrete Paving

P/11 Open Graded Porous Asphalt

P/12 Pavement Marking

P/14 Installation of Raised Pavement Markers

P/16 Installation of Edge Marker Posts

P/22 Reflectorised Pavement Marking

P 23 Performance Based Specification for Hotmix Asphalt Wearing Course


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Surfacing

P/24 Performance Based Specification for Traffic Signs

Quality Assurance Q/1 Chipsealing

Q/2 Hot Mix Asphalt

Q/3 Normal QA Level Contracts

Q/4 High QA Level Contracts

Testing T/5 Size, Shape and Grading of Grades 1-4 Sealing Chips

Maintenance HM19 Potholes

HM12 Digouts

HM13 Depressions

HM11 Surfacings

HM14 Edgebreak

HM15 Surface Covers

HM09 Incident Response

C20 Erection and Maintenance of Traffic Signs, Chevrons, Markers & SightRails

Note: In the TNZ Specifications some tests are described as being carried out by the Engineers. This shall bedeleted and the Contractor shall be responsible for the testing and supplying of the results to the Engineer inaccordance with the level of Quality Assurance prescribed.

STANDARDS ASSOCIATION OF NEW ZEALAND SPECIFICATIONS

NZS 3910:2003 Conditions of Contract for Building and Civil Engineering Construction

NZS 4224 Code of Practice for Measurement of Civil Engineering Quantities

NZS 4402 Methods of Testing Soils for Civil Engineering Purposes

NZTA PUBLICATIONS

TNZ Code of Practice for Temporary Traffic Management in New Zealand

TNZ Manual of Traffic Signs and Markings, Parts I and II

TNZ Quality Standard TQS1:1995

TNZ Bituminous Sealing Manual

CHRISTCHURCH CITY COUNCIL STANDARDS

Christchurch City Council ‘Construction Standard Specification’ (abbreviated as CSS) is fully available in thefollowing Parts:

CSS: Part 1: 2006 - General

CSS: Part 2: 2006 - Earthworks

CSS: Part 3: 2006 - Utility Drainage

CSS: Part 4: 2006 - Water Supply

CSS: Part 5: 2006 - Lights

CSS: Part 6: 2006 - Roads

CSS: Part 7: 2006 - Landscapes


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LIGHTING & ELECTRIAL STANDARDS – refer Section 10.0 of this specification.

OTHER INDUSTRY STANDARDS;

AS 4373: 1996 Pruning of amenity trees

BS 3998: 1989 Recommendations for tree work

BS 4043: 1989 Recommendations for transplanting root-balled trees

BS 5837: 1981 Guide for trees in relation to construction

NZS 4454: Standard for Composts, Soil Conditioners and Mulches

5.0 Site Preparation/Earthworks

5.1 GeneralEarthworks shall be constructed in accordance with TNZ/NZTA Specification F/1.

The Contractor is to notify at tender stage any proposed borrow and dump sites, water sources and any ResourceConsents/Permits that may be required due to the Contractors proposed methodology to be used to undertake theworks. The Contractor shall, prior to the commencement of the works, provide the Engineer with copies of theconsents or permits for such activities. The Contractor shall carry out the conditions of any resourceconsents/permits obtained and used in connection with the works.

5.2 ClearingRefer Site Clearance plans LD0110, LD0205, LD0405 showing all elements to be removed from site.

Suitable topsoil shall be stockpiled on site for respreading where appropriate. Dump sites are to be found by theContractor.

Care shall be taken not to damage any vegetation that is not affected by the proposed works, with particularattention to the existing established street trees along the western side of Carters Road SH1 (refer HurunuiPathway Plans). Please refer to “Aborcultural Report – Resource Consent Application Carters Road ReserveProject Amberley” April 2007 which identifies the tree maintenance practices to be followed for tree pruning andtree removal as shown on “Notable Tree Pruning and Removal” Plan no. LD0101.

The Contractor shall ensure that existing vegetation to be retained shall be protected from damage by fencingaround the drip line of that vegetation. Care shall be taken in the operation of equipment that branches andcanopies of trees are not damaged. Any inadvertent damage shall be trimmed by an arborist and fungicideapplied to the wound, at the Contractors expense.

Equipment and machinery shall not be stored within the drip line of any trees or in planting areas.

The Contractor’s programme shall allow for adequate time for clearing, weed re-growth and spraying of herbicidewhere necessary.

5.3 Excavation and RemovalRefer Site Clearance Drawings for Northern Gateway, Hurunui Pathway, Southern Gateway and Hynds Corner.

Unless otherwise specified, the Contractor is responsible for the excavation, removal and disposal off site of allcleared materials including footpaths, site features, driveway sections, trees and vegetation and ground materialin a safe and legal manner, including payment of any associated fees as required.

All general rubbish at the commencement, accumulated or dumped by others during the Contract Period, withinthe working area as shown on the Drawings, shall be removed by the Contractor.


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5.4 WeedsprayingAll vegetated areas to be planted shall be sprayed with 2 applications of approved herbicide one week apart andone week prior to clearing.

Only certified applicators shall be responsible for the application of herbicides.

To attain a weed-free ground prior to planting, the existing weed growth may require cutting, trimming andremoval prior to herbicide application. Any vegetation exceeding 200mm in height shall be cleared or mown priorto application of herbicide. Generally this shall mean that all areas to be sprayed other than lawn or well-grazedpaddock shall be cleared or mown. Herbicide shall be applied to cleared/mown areas following sufficient re-growth of the weeds through the mulch as approved by the Engineer.

Existing grass areas to be re-sown shall be eradicated by an application of translocated herbicide.

The Contractor shall provide details of the proposed herbicide and spraying method for approval by the Engineerprior to spraying.

Spraying of herbicides shall not take place in windy conditions and the Contractor shall be responsible forreinstating any damage caused by drift of spray.

Where a translocated herbicide is used around plants in leaf to be retained, an adequate guard must be used, ora suitable hood applicator used for spot treatment.

All spraying equipment is to be carefully calibrated to prevent over or under dosing.

No herbicide containers, empty or full, are to be left unattended on site at any time.

The Contractor shall note that planting shall not proceed until at least two weeks after the first application of theresidual herbicide, unless prior approval is obtained.

5.5 Removal of Historic Light PoleRefer General Arrangement Drawing for Hurunui Pathway.

The existing historic lightpole at the frontage of the cob cottage is to be disconnected and carefully removedwithout damage under supervision of the Engineer and placed into Hurunui District Council storage.

5.6 Unsuitable materialsUnsuitable materials are defined as those materials too weak to provide support for new construction orcontaining rubbish or contaminated materials.

5.7 Topsoil StrippingTopsoil stripping shall not start until the clearing operation has been inspected and passed, and silt controlmeasures are installed.

All topsoil including turfs, humus and organic materials shall be stripped to the satisfaction of the Engineer fromareas as shown on the Drawings and / or affected by cutting or filling and stockpiled clear of the areas affected byother works.

Stripped topsoil shall be stockpiled separately and neatly outside of the stripped areas for later re-spreading ordisposal. The stockpiles shall be trimmed to a free draining slope to reduce ingress of rainwater.

Topsoil shall be measured for payment purposes, as the stripped area by depth or in stockpiles, as stated in theSchedule of Prices.

Unless otherwise specified, no topsoil shall be removed from the site without the Engineer's approval, and allsurplus topsoil shall remain the property of the Principal.

Should the Contractor fail to stockpile sufficient topsoil, when there was sufficient for re-spreading to the requireddepths, as confirmed by site measurement or estimation, then the deficiency shall be made up by importingfurther topsoil at the Contractor’s expense.


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5.8 Cultivation Prior to PlantingFollowing clearing and spraying, areas to be planted shall be cultivated to a depth of 350mm. Cultivation shall beby mechanical means outside root zones of trees to be retained. Mechanical means shall include ripping with thetines 350mm apart attached to a bulldozer or excavator, or giant disking, or rotary hoeing.

Minor grading shall be carried out to ensure an even surface that will not hold water, particularly at junctions withedging, kerbs, manholes, paths etc.

Within the root zones of trees to be retained, cultivation shall be undertaken with hand held tools (spades etc).

Root material or other debris exposed during cultivation shall be removed off site.

5.9 Cut to WasteFollowing testing, material not meeting the specification requirements for filling shall be classed as unsuitable, orthe Engineer following inspection may declare the material unsuitable. Classified unsuitable or authorised surplusmaterial is to be removed from site to a dump found by the Contractor.

5.10 Cut to FillThe Contractor shall manage and selectively use the cut to fill materials capable of being compacted to thedensities, moisture contents, air voids, shear strengths and CBR specified in the specific technical specification.All associated work such as drying back of material, wetting of material, benching, trimming and compaction,which may be required to construct the fill to the design profile, shall be carried out in accordance with TNZSpecification F/1.

5.10.1 Subgrade Improvement Layer

The Contractor shall supply, place, compact and shape layers of approved material, to the dimensions detailed onthe drawings. The subgrade improvement material does not have a specific grading however it shall meet thefollowing criteria:

Subgrade improvement material shall not be gap graded Subgrade improvement material shall be free of organic material Subgrade improvement material shall not contain clay either free or as a coating on the stone The fraction passing the 75-micron sieve shall be substantially non-plastic Subgrade improvement material shall not contain stone larger than 150mm Subgrade improvement material obtained from river sources (i.e. river-run) shall not be obtained from below

the water level. CBR shall be 10%

The Contractor shall supply, place and shape the subgrade improvement material in compliance with TNZ M/4and B/2 specifications, to the final compacted depth.

5.11 ReinstatementThis is to be confined to spreading of topsoil to the footpath edges and landscape areas to make these areasgood. The respread topsoil shall be stick raked and spread evenly to a nominal thickness of 100mm. These areasto be grass seeded as specified in section 17.0.

5.12 Imported Hardfill (Provisional Item)Material to be used as fill must be able to achieve the CBR specified and shall only be used with the Engineer'sapproval. All associated work such as drying back of material, wetting of material, benching, trimming andcompaction, which may be required to construct the fill to the design profile, shall be carried out in accordancewith TNZ Specification F/1.


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6.0 ServicesThe Contractor shall confirm the location of all services before work begins on site. Should the Contractordiscover an additional service, the Contractor shall liaise with the Engineer. The Engineer shall decide as to therelocation of the service, or alteration to the design.

The locations of the services as shown on the drawings are provided to the Contractor in good faith. It is theContractors responsibility to obtain accurate utilities services locations from the utilities companies, and to protectthese services.

Should the Contractor uncover any services, which conflict with the proposed works, the Contractor shallimmediately advise the Engineer who will arrange for the relocation if required. Any damage occurring to servicescaused by the Contractor shall be reported immediately to the utility authority, by the Contractor, and any associatedcosts will be at the Contractor's expense.

The Contractor throughout the duration of this contract shall maintain existing private services, such as drainage anddomestic water supplies, in full working order. Should the Contractor damage a privately owned service, he shallimmediately report the damage to the owner and immediately arrange for the repair to the service at his cost unlessthe owner chooses to arrange for the repair and invoice the Contractor.

All trenches shall be hand dug around the existing utility where within one metre (or a safe distance approved by theowner) of such services. Adequate notice of commencement of excavation shall be given to the utility authority andclearances obtained. Utility authorities may require a representative to be present onsite when excavations are closeto their services, the contractor must make provision for this. All trenches that are to be built over shall be backfilledwith approved imported fill.

The Contractor shall co-operate with the utility authorities during any works and shall allow for any delay orinterruption to the construction programme necessitated by the relocation of services.

7.0 Treatments to Existing TreesRefer to “Notable Tree Pruning and Removal” drawing no. 60154190 – LD0101 and Site Clearance Plan Nos,LD0110, LD0111, LD0205 and LD0405.

Tree Pruning/Tree Removal – Hurunui Pathway

Refer Arboricultural Report – Resource Consent Application Carters Road Reserve Project Amberley” April 2007which identifies the tree maintenance practices to be followed for tree pruning and removal for the trees as shownon the “Notable Tree Pruning and Removal” Drawing no. 60154190 – LD0101.

8.0 Pavement and Road MarkingsRoad Pavement refer to General Arrangement and Setting Out Drawings, Typical Kerb Details drawing No.LD0902, and Typical Kerb Termination Drawing LD0901.

8.1 Test PitsTest pits shall be done to determine the CBR value of the subgrade prior to any construction of the pavement inthe locations to be determined by the Engineer.

The Contractor shall excavate the test pits, test the CBR of the subgrade, prepare the report and submit it to theEngineer. The pavement construction work shall not proceed prior to the approval of the Engineer.

8.2 Granular Pavement MaterialsBasecourse shall comply with TNZ Specification M/4 AP40.

Basecourse used in the median and adjacent to the full depth pavement shall comply with AP 40, and have a SandEquivalent less than 40.


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Subbase shall comply with the Christchurch City Council – Construction Standard Specification – Part 1 General –CSS: Part 1 – Cl 26.3 CCC AP 65, or an approved equivalent for the AP specification as produced by theQuarrymens Association.

Running course shall comply with TNZ Specification B/2.

All aggregate grading test results shall be no more than one month old. No aggregate materials are to be used atany site unless approved by the Engineer. Failure to comply with this requirement may result in rejection of thematerial requiring removal from the site.

8.3 ConcreteCement, aggregates and water shall be of the qualities specified in NZS 3109:1997 - Concrete Construction.

If requested, samples shall be supplied to the Engineer for testing.

The following specifications shall apply for the production of the concrete:

NZS 3104 Ready Mixed Concrete Production

NZS 3108 Site Mixed Concrete Production

Curing compounds shall conform to ASIM C309 "Specification for Liquid Membrane Forming Compounds for CuringConcrete".

8.4 Sealing ChipsSealing chips shall conform to TNZ Specification M/6 for all applications in the works. All chip test results shall be nomore than one month old. No chip materials are to be used at any site unless approved by the Engineer. Failure tocomply with this requirement may result in rejection of the material requiring removal from the site.

8.5 Asphaltic BitumenBitumen for use in pavement and footpath tack coats and sealing shall conform to TNZ Specification M/1 and shallgenerally be 180/200-penetration grade. Bitumen distributors shall have a current certification to the BitumenContractors Association E/2 Specification.

8.6 Asphaltic ConcreteAsphaltic concrete shall conform to TNZ Specification M/10.

8.7 Subgrade Improvement LayerThe Contractor shall supply, place, compact and shape layers of approved material, to the dimensions detailed onthe drawings. The subgrade improvement material does not have a specific grading however it shall meet thefollowing criteria:

Subgrade improvement material shall not be gap graded Subgrade improvement material shall be free of organic material Subgrade improvement material shall not contain clay either free or as a coating on the stone The fraction passing the 75-micron sieve shall be substantially non-plastic Subgrade improvement material shall not contain stone larger than 150mm Subgrade improvement material obtained from river sources (i.e. river-run) shall not be obtained from below

the water level. CBR shall be 7%

The Contractor shall supply, place and shape the subgrade improvement material in compliance with TNZ M/4 andB/2 specifications, to the final compacted depth.

8.8 Pavement ConstructionPavement construction involves work as follows:

1. New, full depth pavement construction for kerb widening adjacent to the existing pavement.


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2. Depth of existing pavement shall be based on the CBR test conducted.3. Dig out repairs on the existing pavement will be as agreed on site with the Engineer.

The new Design Pavement Structure shall be:

50mm AC16 (location is to be determined by the Engineer onsite) or G4/6 two coat chip seal (remainingcarriageway)

150mm TNZ M4 AP 40 Basecourse

270mm AP65 (CBR >7); or

200mm AP 65 (CBR > 5)

0mm Subgrade Improvement Material (CBR > 7); or

160mm Subgrade Improvement Material (10 > CBR > 5); or

470mm Subgrade Improvement Material (5 > CBR > 2)

The method of construction shall comply with Section C4 of this specification.

8.9 SealingA first coat seal shall be supplied to the new surface as a two coat seal with Grade 4 and Grade 6 sealing chip,except where SMA is to be installed, where only Grade 4 Sealing chip will be applied.

All sealing shall comply with TNZ P/3 and the TNZ Sealing Manual. The chip seal shall have a PSV of 50 orotherwise approved by the Engineer. The Contractor shall supply the ALD of the proposed sealing chip. TheContractor shall supply the binder application rate. The Contractor shall confirm, before sealing that he considersthe rate is appropriate. See Appendix 5 Schedule A “Description of Sealing Work”.

Moisture Content Before Sealing

The moisture content from NDM readings taken on the surface prior to sealing shall not be greater than thatspecified in TNZ B2.

Sealing Procedure

1. First Coat

Bitumen: SH 1 Spray at 1.0 litres/m2 approx (residual)

Chip: Spread Grade 4 chip

2. Second coat (shall be applied immediately following the first coat)

Bitumen: SH 1 Spray at 0.6 litres/m2 approx (residual)

Chip: Spread Grade 6 chip

Compaction: Normal compaction in accordance with NRB P/3 followed by normal traffic.


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Removal of Surplus Chips

Surplus chips shall be removed from the sealed surface, then uplifted and carted off the site prior to pavementmarking and removal of the temporary speed restriction signs.

The removal of the surplus chips shall be carried out by light rotary brooming together with suction brooming or bysome other approved method, to remove the chip off site. Every precaution shall be taken to ensure that chipswhich are in contact with the binder are not removed.

8.10 Road MarkingsRoad Markings are shown on the General Arrangement Drawings for Northern Gateway, Southern Gateway andHynds Corner.

All road markings shall be set out and painted as shown on the above drawings. The paint shall comply with TNZM/7 Roadmarking Paints. The markings shall be repainted 3 monthly to ensure the markings remain visible due tobitumen tracking of the SMA.

The roadmarking shall be set-out using road marking plans included as part of the contract documents. TheContractor is to avoid the use of a series of short straights to form the curves and shall form smooth curves.

The paint shall conform to the requirements of TNZ Specification P12 and M/7 for white/yellow roadmarking paintand paint applicators shall have a current certificate to TNZ Specification E/3 and have an approved quality system.All roadmarking paint apart from yellow no stopping lines shall be reflectorised and 100mm wide unless otherwisenoted and conform to the Manual of Traffic Signs and Markings (MOTSAM).

Within 48 hours after completion of the surfacing seal the Contractor shall install all new road marking. The followingapplies:

REMOVAL OF SURPLUS CHIPSurplus chips shall be cleared from the sealed surface, and removed from the site prior to pavement marking andremoval of temporary speed restriction signs.

The removal of surplus chips shall be carried out by light rotary brooming and suction brooming, or by otherapproved methods. Every precaution shall be taken to ensure that chips that are in contact with the binder are notremoved.

Paint

The Contractor shall within two weeks of the acceptance of tender submit to the Engineer a letter of guarantee ofsupply from the nominated manufacturer/supplier and shall not change the nominated supplier without the writtenapproval of the Engineer. No payment shall be made for paint road marking unless the paint applied is both from an2000 Specification, and all other relevant specifications.

New road markings are to be painted twice upon initial application and again at the end of the maintenanceperiod, in addition to the 3 monthly repainting.

Beads

The Contractor shall, within two weeks of acceptance of tender, submit details of source of supply and proof thatbeads supplied comply with Australian Specification AS 2009-1977, with particular regard to the flow testrequirement.

9.0 Traffic Management and Temporary Works

9.1 GeneralTraffic control for the Contract shall be in accordance with Transit New Zealand Code of Practice for TemporaryTraffic Management (COPTTM).

This Code includes:

A description of the powers and responsibilities of relevant government agencies, road controlling authorities,emergency services, utility operators, event organisers, engineers, contractors and any other relevant parties.

Practices for the development of traffic management plans for all New Zealand roads.


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Specifications for temporary traffic management equipment. Requirements and guidelines for the installation and operation of static and mobile temporary traffic

management. Typical layout diagrams for a wide range of activities.

The footpath Hurunui Pathway has high pedestrian demand throughout the day. The Contractor shall provide thepedestrians alternative footpath for the area at all times.

9.2 Level of Temporary Traffic ManagementThe temporary traffic management shall be to Level 1 of COPTTM.

9.3 Traffic Management Plans and ImplementationThe Contractor in accordance with Section A6 and Appendix A of COPTTM shall prepare and submit to theEngineer a Traffic Management Plan in accordance with the COPTTM requirements. No work can commenceuntil:

a) The TMP has been approved.b) Speed restriction authorisation has been granted.c) All consent obtained from the RCA for activity within the road reserve.d) Approval of certified personnel.e) Notification of intent to commence work 2 days prior has been given to the Traffic Management Co-

ordinator.The Engineer shall be carrying out Safety Audits of the Contractor’s temporary traffic management measures inaccordance with TNZ COPTTM Appendix, November 2004.

The Engineer has the authority to suspend the Contractor’s STMS and remove all traffic controllers from the sitewithout notice where a serious non-compliance with the TMP is found. A notice of non-conformance (as set out inAppendix F COPTTM) will be issued.

The Contractor will not be paid for any days that do not comply with the signed and accepted TMP.

The signs and layout of traffic control as specified within COPTTM Sections E, F & G, shall comply with the levelof control specified.

Where difficulties are encountered in preparing a TMP that fully complies with the COPTTM, consultation betweenall affected parties shall be carried out to clarify and resolve any issues in the best and practicable way whilstupholding the intend of COPTTM.

In addition to COPTTM requirements, job sites that exceed 400m in length shall have repeater RG-4 signs at400m spacings.

10.0 Drainage

10.1 Kerb and Channel (T01/T02/T03 Machine laid)Codes T01, T02 etc are identified in ‘Other Items’ Schedule on Drawing LD0002.

Refer to Typical Kerb Details Drawing LD0902, and General Arrangement Plans for Northern Gateway, SouthernGateway and Hynds Corner.

Kerb and channel of the type shown on the drawings shall be constructed at the location and to the levelsindicated on the drawings or as directed by the Engineer on site.

The concrete shall conform to NZS 3109 and have the following minimum compressive strengths after 28 days:

17.5 MPa for in situ work 25 MPa for continuous machine laid slip form work

The surface finish of the concrete shall comply with Class F6 of NZS 3114.


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The finished horizontal and vertical alignment of the kerb and channel shall be straight between tangent pointsand uniform around curves without visible kinks, flats or angles. The gradient of the kerb and channel shall besuch that when a straight edge 3m long is placed in the channel or on the top of the kerb it shall not deviate bymore than 3mm from the designed gradient.

All kerb and channel work shall be constructed to the tolerances specified by TNZ B/2.

The Engineer shall approve all kerb and channel work with the acceptance of string lines prior to placing ofconcrete.

10.2 SumpsPrecast concrete sumps will be proprietary items having minimum internal dimensions of 675mm x 450mm x1200mm deep. The sumps shall be constructed as shown on the drawings and have a heavy duty cast iron frameand grate. The sumps shall be installed in accordance with CCC CSS Part 3.

10.3 Infiltration Trenches (Southern Gateway Only)Refer Drawing No.LD0226

The Contractor shall submit details of the proposed drainage materials to the Engineer for approval prior toconstruction.

The gravel filter material is to be AP20 graded filter material. The cobblestone layer shall have an averagediameter of at least 50mm.

Filter cloth material shall be in accordance with TNZ F7, class 1 filtration, Class C strength, laid in accordancewith TNZ F7.

Slotted pipes shall be heavy wall mPVC or equivalent material slotted in accordance with NZTA F/2.

Trench excavation, pipe, bedding, jointing, backfilling and maintenance shall be in accordance with F/2.

10.4 Stormwater SpecificationsSupply of materials and construction of stormwater systems shall be carried out in accordance with the drawingsincluding notes and with the following standard specifications:

Christchurch City Council Standards Specifications (CSS) NZTA standard specifications;

- F/2 pipe subsoil drain construction- F/3 pipe culvert construction- F/6 geotextile wrapped aggregate subsoil drain construction- F/7 specification for geotextiles

11.0 Lighting and ElectricalThe Lighting codes listed below (L01, L02 etc) are identified in detail in the Lighting Schedule as shown on theKeynotes drawing No. 60154190 – LD0002

Lighting locations are shown on the General Arrangements Plans.

11.1 GeneralSupply and installation of all lighting should be in accordance with the Lighting Schedule and drawings.

Supply and install all final sub-circuit cabling from the nearest electrical board to all the exterior lighting.

All cabling to all ground mounted lights shall be installed within suitable high impact PVC conduit buried at a depthof 600mm minimum. Approved ducting shall be installed where electrical cabling passes under or throughconcrete paths.


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11.2 Lighting InstallationAll lights to be installed in compliance with the manufacturers installation instructions. All reflectors, glasswareand exterior surfaces shall be cleaned immediately prior to practical completion. All lights to be installed andtested as required to achieve the ‘code of compliance’ from a registered Electrical Engineer or power utility.

For any queries on lighting installation please contact;

Mark Herring

Mark Herring Lighting

PO Box 332

Christchurch

PH: 03 365 6020

11.3 Testing and Approval of LightingAll installed lights are to be inspected during the evening hours for on site approval by the Engineer.

11.4 Signage Lights (L01)Supply, install and test lights, including cabling/conduit, steel galv. cage and concrete footing and fixings.

11.5 Up Lights for Poles (L02)Refer Drawing No. LD0910.

Supply, install and test lights, including cabling/conduit, and concrete footing and fixings.

11.6 Architectural Lighting for Cob Cottage Façade (L03)Refer Drawing No. LD0181

Supply, install and test in-ground lights.

11.7 LED Light Bollard (L04)Refer Drawing No. LD0181

11.8 Above Ground Up Lights for Trees (L05)Supply, install and test lights, including cabling, galvanised steel cage and concrete footing and fixings. Exactpositioning, angle and orientation of each of these lights at the base of trees to be confirmed by the Engineer onsite.

11.9 Lighting ControlA daylight sensor/switch (photosensitive with delay and hysteresis action), a multi channel time clock (3-channel,15-minute interval), a manually operated three position test switch (On, Off, Auto) and contactors shall beprovided for separate control of all lights (By daylight sensor) and signage lighting (By timer clock).

The daylight sensor/switch shall be suitable for mounting outside and shall be mounted in a suitable positionexposed to daylight, but screened from direct sunlight and from any artificial light sources.

The sensitivity of the daylight sensor/switch shall be adjusted as required for dusk to dawn control.

The multi-channel time clock, manual override test switch and contactors shall be located adjacent to thedistribution board and labelled accordingly, unless specified otherwise.


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11.10 Lighting StandardsAll lights shall be of the type, size and location as indicated on the Lighting Schedule and/or drawings. HRC fuses,terminal blocks, control gear and earth studs etc, shall be supplied and installed within a purpose made recessnear the base of each standard. This recess shall be complete with a screw fixed cover and rated to IP56minimum.

11.11 Cabling11.11.1 General

Cables used shall comply with the following:

PVC (Conduit) AS/NZS 5000

PVC (Flexible) AS/NZS 60227

PVC/PVC NZS 6401

PVC/PVC (Flexible) AS/NZS 3191

PVC/NS/PVC AS/NZS 4961

XLPE/PVC AS/NZS 5000

XLPE/NS/PVC AS/NZS 4961

XLPE/SWA/PVC AS/NZS 5000

All cabling shall comply with AS/NZS 3008 and shall be minimum 600/1000 volt rating for 400-volt line voltageuse. Red-sheathed cables shall only be used for fire services.

All cabling shall be of the size and type shown on the drawings and/or schedules and shall be stranded.

The radius of cable bends shall not be less than the manufacturer’s recommended minimum and therequirements of AS/NZS 3000.

All cabling shall be concealed from normal view underground (or spaces otherwise agreed by the Engineer).Ensure that pipe-work and ductwork have precedence in allocation of space over cables and cable supportstructures.

No through joints shall be permitted on straight runs unless agreed by the Engineer.

The precise location of lights shall subject to co-ordination with architectural features and shall be agreed with theEngineer prior to cabling.

Where sub-circuit cabling cannot be concealed from view the cabling shall be installed within surface mountedconduit or trunking.

All sub-circuit cabling shall be supported to avoid undue strain on the cables or on terminations.

All cable runs shall be run in single layers, neatly dressed and identified as to function at terminating points.Unnecessary crossing over or twisting in cables shall be corrected at the Electrical Services Contractor's expenseif considered necessary by the Engineer.

All cabling shall be installed in a manner which permits its convenient withdrawal and replacement. No cable shallbe cast directly into concrete or plaster. In such areas install cables in conduit or ducting. Draw wires shall beinstalled in conduits or pipes where necessary for later cable installation.

Sharp edges to steel or sheet metal shall be removed and such work shall be arranged to avoid accidental injuryto personnel, or damage to insulation. Where cables enter metal-clad apparatus such as switchboards etc, theholes shall be properly bushed.

Where cables are required to run concealed in timber-framed construction they shall be run so that there is nodanger of damage to the cables from subsequent nailing of linings, etc. Horizontal runs in walls are not permittedunless there is no alternative.

On no account shall cabling be installed in any situation where timbers have been treated or likely to be treatedwith tar-oil, creosote or allied products.


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All cabling which supplies equipment liable to overheat and cause rapid deterioration of the wiring shall have thetails made off with heat resisting sleeves to protect the permanent wiring in a conduit box fitted with terminals andmounted adjacent to the fitting or equipment then run heat resistant cabling from the box.

No ordinary grade PVC insulated cables shall be run in any location where the temperature is likely to exceed45°C. No high temperature grade PVC shall be run in locations where the temperature is likely to exceed 75°C.

Extra low voltage wiring shall be run segregated from other wiring. Extra low voltage wiring shall be suitablyidentified every metre to approval.

After installation but before connection, all cables shall be tested for insulation resistance using a 500V tester for230V circuits and a 1000V megger for 400V circuits.

11.11.2 Underground Cables

Unless specified otherwise all underground cabling shall be direct buried except where passing under roads andpaths where the cables shall be installed within cable ducts. The ends of these cable ducts shall extend beyondthe limits of the road works and the ends sealed after the installation of cabling.

The cables are to be buried in a trench at a minimum depth of 600mm, bedded on not less than 100mm of finewashed sand and covered by a further 100mm of fine washed sand.

The cables are to be laid free of kinks and twists and laid in flat formation without interlacing.

Locations of underground cables are to be accurately marked on the As-Built drawings.

11.11.3 Termination’s

On lighting and power circuits terminate conductors using normal good practice. Where connection is made tobolted terminals use pressure crimp lugs.

Termination’s to light fittings, heaters, etc. in which temperatures in excess of 40°C shall be experienced are to bemade using heat resistant insulation of an approved type.

11.11.4 Termination/Junction Boxes

No junction boxes are to be installed in sub-circuit cables without the prior written approval of the Engineer.

Junction boxes shall be of the waterproof polycarbonate type to IP56 protection.

Terminals shall be polyamide type, mounted on the base of the junction box. Boxes shall be sized so that 60mmclear space is provided between the box wall and the terminals.

All cable entries shall be bushed to provide a water and insect proof seal.

All terminals and wires shall be number ferruled in accordance with the wire numbers given on the drawings.

All junction boxes shall be identified by code numbers which shall be reproduced on the record plan layout,cabling and wiring diagrams.

11.11.5 Cable Trenches11.11.5.1 General

Excavation of the cable trench and installation of cables or ducts on suitable bedding shall be included withinthese Contract works unless specified otherwise. The work to be undertaken shall include site preparation prior toexcavation of the cable trench, the back filling of the cable trench and associated reinstatement work.

11.11.5.2 Site Preparation

Prior to excavation of the cable trench, the following site preparation works shall be undertaken:

Across existing gardens or lawns existing shrubs and turf are to be carefully removed and stored for laterreplacement. A minimum 100mm thickness of topsoil is to be stripped and stockpiled in approved locations forreplacement.

Across sealed paths and roadways the asphalt seal or concrete pavement shall be neatly sawcut to provideadequate width for the top of the proposed cable trench and the materials disposed of away from site.


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11.11.5.3 Back filling

All cables and or ducts shall be bedded on not less than 100mm of fine washed sand and after the cables and/orducts have been installed in the trench they are to be carefully back filled with a layer of clean fine washed sandextending to a level 100mm above the top of the highest cable or duct.

The sand material shall be free of stones greater than 6mm diameter and shall be hand tamped firmly into placearound the cables and/or ducts.

Above the sand layer, place back fill in layers, not exceeding 150mm loose thickness, and compact using suitablemechanical compaction equipment, but taking sufficient care to avoid damaging the cables or ducts. Excavatedmaterial may be utilised as back fill provided it is free of stones and lumps of unsuitable material greater than50mm diameter and it is able to be compacted to the required standard.

An approved proprietary cable protection covering shall be placed not more than 75mm above the cable over thefull length of the trench.

An orange PVC marker strip 100mm wide with "Electric cable below" or equal labelling shall be laid above thecables and/or duct over the full length of the trench, at a depth of 300mm.

11.11.5.4 Reinstatement WorkReinstatement of Lawn and Planting Areas

After the completion of back filling, all gardens shall be reinstated by the replacement of topsoil to a minimumthickness of 100mm and replanting of all temporarily removed shrubs. All lawns shall be reinstated by thereplacement of original turfs and/or by the replacement of topsoil to a minimum thickness of 100mm finished withsown high quality grass seed.

Thorough watering of all gardens and lawns shall be undertaken twice, five days apart, commencing immediatelyafter reinstatement.

11.11.5.5 Other Buried Services

The locations of some buried services are shown on the drawings where they are known.

The Electrical Services Contractor is responsible for the locating and protection of, and prevention of damage toall other services. Any services which are accidentally damaged shall be repaired urgently.

The Electrical Services Contractor shall be liable for damage and consequences as defined in the Conditions ofContract.

12.0 Footpath and SurfacingThe Codes listed below (S01, S02 etc) are identified in detail in the Surface Finishes Schedule as shown on theKeynotes drawing No. 60154190 – LD0002

12.1 Topsoil (S01) – refer section 13: Planting Works

12.2 Mulch (S02) – refer Planting Works of this specification.

12.3 River Stones (S03)River stones shall be in accordance with the drawings and laid to a level flush with surrounding finished surfaces(kerbs, timber edging pr top of walls). Stones to be laid on geotextile (filter fabric) as shown on the drawings andlapped as per manufacturers specifications.

12.4 Exposed Aggregate (S04)Refer CCC: Part 6:2007 – Roads.


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Acid washing of exposed aggregate concrete ‘Hurunui Pathway’ to be under the supervision of the Engineer tominimise runoff of acid around tree feeder roots of avenue trees.

12.5 Exposed Aggregate Concrete for Driveways (S04A)Refer CCC: Part 6:2007 – Roads

12.6 Timber Retaining (S05/5A) – refer Structures section of thisspecification.

12.7 Timber Inserts (S06)Timber shall be Australian B grade hardwood 200mm x 100mm x 2100mm and installed as shown on thedrawings.

12.8 Timber Retaining Walls (S07)Timber shall be H4 ground treated as shown on the Drawings

12.9 Timber Poles (S07A)Timber shall be Australian B grade hardwood as shown in the drawings. Contractor to supply Engineer with polesample for inspection and approval prior to delivery on site.

12.10 Cor-ten Steel Fittings (S09)This applies to the Cor-ten fittings for the Amberley Sign and the LED Bollard (L04). Samples of allCor-ten plates and fittings are to be provided to the Engineer for approval prior to construction on site.

COR-TEN A (ASTM A588 weathering grade steel) applies to plates up to 12.5mm in thickness.Minimum thickness of 5mm. Joining elements such as bolts, rivets, nuts and washers must be soselected that the formation of local electro-chemical cells are avoided.

Therefore bolts, rivets, nuts and washers should preferably consist of weathering steel i.e. Cor-tenfixings, or acid-resistant steel (Stainless steel) painted to match Cor-ten if required

All Cor-ten elements should be separated from each other and from other metal surfaces with EPDMspacing pads/washers positioned between all fixings

Galvanised fixings are not compatible.

At fixings capillary action can lead to permanent moisture resulting in increased corrosion. Criticalzones should therefore be protected by painting, sealing or other protective measures which must beapproved by the Engineer.

Drill holes must be oversized to allow for expansion/contraction.

12.11 Geotextile (filter fabric) – refer Drainage section of this specification

12.12 Gravel (S11)Supply and install compacted gravel as shown in the drawings. Refer CCC: Part 6 - Roads 2007

12.13 AP40 Compacted Basecourse (S12)Supply and install basecourse as shown in the drawings. Refer to CCC: Part 1: 2007 - General

12.14 Timber Edging (S13)General Areas and Kerbside Areas: refer CCC: Part 6: 2007 – Roads: Clause 8.3 and SD06.


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12.15 “Hurunui Pathway” Plaques (S14)Supply and installation of Brass Plates shall be in accordance with drawings.

Contractor to supply plate sample for approval by the Engineer prior to installation on site.

Surface design or relief pattern to be supplied by Hurunui District Council.

12.16 Polythene Liner (S15)Polythene liner to be used in selected areas of concrete path sections along the Hurunui Pathway to protect limeleaching into roots of the avenue trees. Engineer to confirm location for polythene on site in relation to existingtree root positions.

12.17 Asphalt Areas (S16)Supply and install compacted asphalt to reinstate footpath, driveway or car park areas as shown in the drawings.Refer CCC: Part 6 – Roads 2007.

13.0 Street FurnitureThe Street Furniture codes listed below (F01, F22 etc) are identified in detail in the Street Furniture Schedule asshown on the Keynotes drawing No. 60154190 – LD0002

13.1 LED Light Bollards (F01 and L04)Supply and install light bollards as shown on the drawings including timber, light components (LED light, DriverPLU350 1 to 9, weatherproof house), Cor-ten and steel fixings and hardware and concrete footing).

First mock-up sample of light bollard for inspection and approval by the Engineer prior to delivery on site.

13.2 Rubbish Bins (F02)Refer Drawing No. LD0181

Supply, delivery and installation of FEL Group Square Colonial Bin as shown on the drawings and inclusive of lid,timber slats, steel fixings, mounting post and concrete foundation.

13.3 Seats (F03)Refer Drawing No. LD0181

Supply, delivery and installation of seats as shown on the drawings and inclusive of timber, and fixings andhardware and concrete footing.

Contractor to provide first mock-up sample of seat for inspection and approval by the Engineer prior to installationon site.

13.4 Type A Station (F04)Refer Drawing No. LD0162

13.5 Type B Station (F05)Refer Drawing No. LD0162

13.6 Relocation of Existing Picnic Tables (F06)Refer Drawing No. LD0164

Existing timber picnic tables within Chamberlain Park are to be relocated as shown on the drawing withoutdamage.


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This work includes excavation and removal of the existing concrete pads and reinstatement of these areas withtopsoil and grass as specified.

This also includes provision of new 100mm deep concrete pads with exposed concrete aggregate finish (S04).

13.7 Relocation of Chamberlain Park Entry SignRefer to Refer Drawing No. LD0164

The Chamberlain Park sign is to be relocated as shown on the drawing without damage with a new 17.5 Mpaconcrete footing of same dimensions as existing.

14.0 Structures

14.1 Timber Retaining Wall (S05/5A)Refer Drawings LD0335 and LD0231

Supply and install retaining structures as shown in the drawings, including H4 treated timber, galv. fixings,drainage aggregate backfill, geotextile, concrete footing and concrete mowing strip as shown in the drawings.

14.2 Amberley Sign and PolesRefer Drawing LD0910, 911, 912, 225 and 231.

Supply and install timber poles, 5mm thick Cor-ten sign, Cor-ten /fixings/bolts, and concrete footing as shown onthe drawings. Refer Cor-ten Steel specification above.

Timber poles are to be single member, Australian grade B hardwood or equivalent. Contractor to provide polesample to the Engineer for inspection and approval prior to construction of the sign and poles.

The Contractor is required to arrange the Engineer to inspect sign fabrication during first stage of production.

Hurunui District Council to confirm graphic message and branding of sign prior to fabrication.

15.0 IrrigationThe Codes listed below (P01, P02 etc) are shown on the Irrigation Drawings Nos LD0222, LD0322 and LD0422.Also refer to Irrigation detail on LD0920.

15.1 Generala) Contractor shall comply with all relevant and current standards and specifications.b) Contractor shall keep records of the materials used and make as-built drawings to be made available to the

Engineer for later reference.c) Contractor shall inspect the site prior to tendering. All measurements should be confirmed on site before

tendering and before any construction is undertaken.d) All trenching shall be backfilled on the same day, as it is opened. No open trenches shall be left open over

night. Barriers must be used where there is an open trench hazard.e) All services should be located by the Contractor and it is the Contractor’s responsibility to ensure the

location and that there is no damage to said services. Any repairs will be at the Contractor’s cost.f) Existing water supply may be interrupted only with approval of the Local Authority. Any connections to the

existing water supply shall be done under supervision of the Engineer, and require minimum 72 hours noticeto be given.

g) The Irrigation system is to be installed as shown on the drawings and in accordance with the specification.No changes may be made to the specification without written approval, from the designer. Final location ofthe water connection points is yet to be confirmed.

h) Water supply shall be from Council mains, high pressure, metered water supply. Connections between themains and the Backflow assembly shall be 32MDOD PN8 Blue line pipe and fittings.

i) A Backflow Preventor will be required at each connection to the existing mains supply. This will be a Wilkins


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350xl, 25mm.with a 130micron filter to be installed before the BFP. All pipe and fittings above ground will be25mm galvanised steel, with a concrete base poured neatly around each, forming a floor and attachment forthe lockable lid. The filter and backflow will be installed above ground and enclosed in a Promax Plastics,plastic pump box, located as shown on the plans, and in the shrub area so as to be least visible to the road.

j) A 25mm Toro EZ flow Solenoid valve with latching type coil, shall be installed in a valve box as near aspossible, within 1 metre, to the BFP box and a Toro DDC battery controller connected to the valve shall beinstalled inside the box with the BFP and filter. No wiring shall be exposed. Direct bury wire connectors suchas 3M DBY connectors shall be used.

k) Supply to driplines from the Solenoid valve shall be by 25mm LDPE 8 Bar pipe, with 25mm RX Compressioncoupling fittings, as shown on the plans. All 25 mm pipe to be trenched and buried minimum 300 mm deep.

l) Driplines shall be Naan PC 20 dripline, 30 cm spacing, 2.2 Blue, installed to manufacturers specifications,with the appropriate dripline fittings, and pegged with wire staples at no less than 5m intervals. All fittings areto be clipped.

m) Tree lines shall be 19mm lateral tube, buried at least 300 mm below ground, each tree shall have a 1mdiameter circle, pegged at ground level, completely around each tree with 4 of 4.5l per hour drippers pertree. All fittings are to be clipped.

16.0 Planting WorksThe Codes listed below (P01, P22 etc ) are identified in detail in the Planting Schedule as shown on the Keynotesdrawing No. 60154190 – LD0002.

Planting Schedules are also shown on the Planting Plans for each area.

16.1 Timing of Planting WorksPlanting work shall only be undertaken when the weather is suitable, ie. mild, dull and moist, and when the groundis moist and workable. All planting operations shall be suspended during periods of severe frosts, waterlogging,drought or persistent drying winds.

16.2 WorkmanshipGeneral

All planting shall be performed by experienced workmen in accordance with the recognised best horticulturalpractice and under the supervision of the contractor's skilled foreman.

All plants not requiring tree pits, shall be planted into holes so that the soil level after settlement, shall match theoriginal soil mark on the stem of the plant. The bottom of each hole shall be pierced to a depth of 200mm with thetines of a fork or similar implement to ensure root penetration and free drainage. The sides of the pit pits dug byrotary augers, shall be roughened to remove and glazing of the surface.

The base of each hole for plants PB40 and larger shall have compost applied in accordance with the Tree Pitexcavation clause above.

Fertiliser shall be applied to the base of the dug hole in accordance with the Fertiliser clause above.

Container grown plants shall have the container removed immediately prior to planting. Care shall be taken toensure that the root ball is not disturbed during container removal or planting.

Plants shall be set in their final positions with main stem vertical and at such a depth that the soil, when firmeddown is at the same height as the nursery earth marks on the stem or the container soil level. Loose roots shallbe spread out in a natural fashion; the soil being carefully placed under and amongst them to fill all voids andfirmed in.

Specimen trees and advanced stock shall be orientated when planted, so that the weathered face of the trunkfaces north.

Any major roots that become accidentally broken off or frayed shall be cleanly cut off from the plant. Damagedroots over 25mm diameter on advanced nursery stock and specimen trees shall be cut back to sound growth andtreated with fungicidal sealant.


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Pruning

Before planting, all shrub material shall be pruned by skilled staff as necessary to conform with the besthorticultural practice appropriate to the type of plant.

Pruning shall remove all injured twigs and branches and shall be such as to compensate for any loss of rootsduring planting operations and shall be carried out without any bruising or tearing of the bark.

After planting, all plants with damaged branches unless rejected, shall be carefully pruned back to healthy wood.

Operations are to be carried out using sharp clean implements to give a clean sloping cut with one flat face.Ragged edges of bark or wood are to be trimmed with a sharp knife.

All pruning waste shall be removed from site.

At the end of the maintenance period, all plant material shall be checked for any dead wood, broken or damagedbranches which shall be pruned and removed from the plant.

Water

The Contractor shall be responsible for watering and to water the installed plants to the level required for theseason the planting is programmed to be installed (with water carts if necessary). Additional watering will berequired during the drier seasons.

Attention must be paid to watering during and after planting to ensure successful establishment. Notwithstandingany prevailing restrictions by the local authority on the use of water for watering any plants, the Contractor shallbe deemed totally responsible for making any special arrangements which may be necessary to ensure regularand adequate watering of trees and shrubs to ensure successful establishment.

In the interests of good horticultural practice watering shall be sufficient to give 300mm minimum depthpenetration and not just surface dampening. The Contractor shall bring to the site sufficient water carts, hosesand sprinklers to provide an adequate water supply to the plant material.

a) Prior to PlantingAll plants shall be thoroughly watered a few hours prior to planting.

b) After PlantingAt the time of planting all trees and shrubs are to be copiously watered in such a way that the entire tree pitor shrub station is moistened to field capacity to encourage settlement. The Contractor shall be responsiblefor watering all plants as required to ensure their survival.

c) Drought ConditionsLack of availability of water shall not release the Contractor from his obligation to replace all dead or dyingplants at the end of the first season of growth after planting. The price submitted shall allow for adequatewatering and, when not directed, the Engineer shall not need to remind the Contractor of his obligationduring periods of drought. If water supply is likely to be restricted, inform the Engineer without delay andascertain availability and cost of second class water from a sewage works or other approved source.

If during a drought some planting has not been carried out, planting may be delayed on the instruction of theEngineer.

Planting Bed Edging

All planting beds located adjacent to lawn (where a mowing strip has not been specified) shall have a 100mmdeep ‘V cut’ edging formed around the perimeter of the beds to act as mulch containment and to provide a neatborder with the adjacent lawn.

Mulching

Upon completion of planting, all planting beds shall be spread with mulch to a depth of 100mm after settling.

All trees shall be mulched with bark mulch to at least 100mm depth.

The outer perimeter of garden beds adjacent to lawns or ground level structures shall be shaped to allow the fulldepth of mulch to be at the same level as the lawn or structures. The level of the ground and mulch may thenslope up or down at a grade of 1v to 5h, to meet the levels of the remainder of the garden bed.


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The mulch shall be spread to a one metre diameter around the trunk, or to the drip line of the tree whichever islarger.

Mulch is to be kept clear from the base of tree trunks or underneath shrubs which have a tendency to develop leafrot, in particular Hebe species, and not piled against stems of plants.

Weed Control

During the Contract Period, the Contractor shall control weeds, which affect the establishment and growth of theplants installed under the contract of existing in areas to be maintained by the Contractor.

Prior to release of the Certificate of Practical Completion, the Contractor shall remove all weeds within landscapedareas. Removal shall be deemed to include the killing of the weed with approved herbicide or removal of the rootsystem.

All weed material shall be removed from the landscape areas and disposed of offsite by the contractor.

Pest Control

If in the opinion of the Contractor, pests are likely to cause damage to the plants The Contractor shall beresponsible for notifying the Engineer of any damage to the plants by birds, possums or rabbits. Lack ofnotification by the Contractor may result in the Contractor being responsible for damage caused by pests.

The Engineer may instruct the Contractor to take steps to control the pests of reduce the damage caused bypests by implementing any of the following measures as a Variation;

Install wire staples around the root balls of the plants, Install bird proof netting, Install additional stakes and ties to the plants, Obtain a permit to capture and relocate birds, Obtain a permit to shoot birds, Apply Pindone pellets to control rabbits and possums.

16.3 Planting Materials - GeneralThe Contractor shall supply plants and planting materials.

Plant materials shall mean plants of all descriptions required for the project in accordance with the plans and asspecified.

Plant materials shall be first class specimens of nursery stock, true to name and type with well developed and wellshaped trunk or stem and head. They shall be well hardened off to cope with the climatic conditions of the site,and free from pests and disease.

The roots shall have a high percentage of fibrous roots that are just touching the edge of their containers. Plantswith roots that are wound round their containers in circular fashion shall be rejected.

Plants shall be free from disfiguring knots, bark abrasions, wind, or freezing injury or other disfigurements andshall bear evidence of proper pruning.

Where several specimens of the same species are to be selected, evenness of shape and size is required withinthe size range specified.

All plant material shall be available for inspection by the Engineer, prior to planting.

All trees shall be inspected and approved at source by the Engineer prior to delivery.

Legible labels shall be attached to each plant delivered to site as a separate unit, or to each box, bundle or balecontaining plants. The labels shall give the approved botanical name, size, age and quantity and otherinformation required to identify the plant or plants.

In exceptional supply shortages, plant substitution may be considered by the Engineer. No substitution shall bemade without the written approval of the Engineer. Approved substitutions shall be of similar height and habit tothose specified.


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Plant sizes are specified by PB bag size (pint bag) up to PB150. Thereafter specimen trees may be specified bybag size, girth or height or a combination of these. Where the Contractor proposes to supply plants in metric bagsizes (litres), the PB size shall be converted to litres by applying the conversion factor of 1 pint equalling 0.568litres.

The genetic source of all plant material shall be from the Canterbury Ecological Area. No plant material may besourced outside of this area without the written approval of the Engineer.

16.4 Acceptance of Soil ConditionsThe Contractor shall assess the condition of the existing topsoil on-site and where they consider that the existingtopsoil is deficient, or waterlogged, they shall advise the Engineer to agree the soil condition and whether anyremedial measures will be adopted.

Remedial measures for insufficient soil conditions shall include the placement of a bulk fill layer. Bulk fill shall befree from pollution and all chemical or heavy metal contaminations in accordance with regional councilacceptance criteria for residential use. It shall not contain excessive proportions of clay, sand, chalk or lime. Itshall be free from stones and debris greater than 20 mm, concrete, steel, clay lumps, tree roots, sticks (or otherinorganic material), weeds and seeds. Organic matter derived from a sewage treatment plants shall not beaccepted as bulk fill.

In the event that the Contractor fails to advise the Engineer of soil problems and plants subsequently die due totopsoil conditions or any other cause, the Contractor shall be responsible for the replacement of those plants.

16.5 Topsoil (S01)Topsoil is defined as the top layer of soil characterised by the presence of organic matter. All imported topsoilshall be good quality medium loam, easily moulded when moist. It must be neither too sticky nor leave a smoothpolished surface when smeared. Topsoil shall be friable, high quality topsoil suitable to support plant life, includinga composition of 10-20% sand, 5-20% humus or organic material intermixed with the balance percentage of silt orclay sized particle without visible lumps of clay or silt and shall have a pH value of between 5.5 and 7.5.

Topsoil shall be free from pollution and all chemical or heavy metal contaminations in accordance with regionalcouncil acceptance criteria for residential use. It shall not contain excessive proportions of clay, sand, chalk orlime. It shall be free from stones and debris greater than 20 mm, concrete, steel, clay lumps, tree roots, sticks (orother inorganic material), weeds and seeds.

Organic matter derived from a sewage treatment plants shall not be accepted as topsoil.

The Contractor shall supply a sample of the soil to be imported prior to the Engineer for its approval prior todelivery of soil to site. Should the soil not be approved, the Contractor shall find alternative sources and seekapproval from the Engineer to that alternative. Topsoil from any alternative source approved by the Engineer,shall be supplied at the tendered rate.

Topsoil for planting beds shall be taken from topsoil stockpiles onsite or imported and placed in 400mmcompacted depth.

Where the Contractor considers that the topsoil is poor quality, Agricultural Lime may be applied to lawn areas atthe rate of 50 gm/m2 as a Variation.

16.6 Topsoil ConditioningAll topsoil to be imported shall be conditioned by the application and mixing of the following;

10% mushroom compost 10% rotting, untreated sawdust

Conditioning materials shall be added and mixed with the topsoil prior to delivery to the site.

Proprietary enriched topsoil/compost mix (Nutrasoil from Living Earth or other approved source) will be anaccepted alternative to adding compost and mixing off-site.


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16.7 Cartage of TopsoilThe Contractor shall obtain all consents, approvals and meet all charges for the supply, loading and delivery oftops soil to site as well as any other works necessary at the source.

16.8 Trees (P01 and P08)The proposed trees will be advanced nursery stock and shall typically be plants PB 95 bag size/45ltr and larger tobe planted in tree pits and staked as shown on the drawings.

Advanced stock shall be to the bag size, girth or height or a combination of these specified on the drawings andschedules.

Trees shall have sturdy straight and vertical stems with a well-balanced canopy of branches. Only specimenswhich have a well-defined, single central leader which is reasonably straight and upright will be accepted, unlessa single straight leader is uncharacteristic of the habit of a particular species. When several specimens of thesame species are to be selected, evenness of shape and size will be required within the size range specified.

Tree pits will be excavated and filled with imported topsoil. Refer Drawing LD0925.

16.9 Container Grown Shrubs (excludes root trainer)Container grown shrubs shall be to the container size (PB) specified in the Planting Schedule and on thedrawings.

Container grown shrubs shall be strong well-rooted sturdy plants without stakes or canes. Shrubs shall have twoor three main stems and a good bushy form. They must have been grown in the containers for at least 6 monthsover a summer period prior to planting out and the container shall be full of root but not root bound.

Plants shall not have been grown in the container for longer than 12 months without having been potted on.

16.10 Stakes and TiesAll trees are to be staked. Stakes shall be straight pointed: H4 treated timber stakes 50mm diameter x 1500mmlong as shown on the drawing LD0925.

Ties shall be 50mm wide Hessian webbing attached to stakes with approved galvanised fastenings. Ties andfixings to the stakes shall be sufficiently durable to provide required support to the plants for a minimum of 3years.

16.11 CompostCompost shall be proprietary top-quality compost produced in accordance with the Best Practice Guidelinescontained in the New Zealand Standard for Composts, Soil Conditioners and Mulches (NZS 4454:2005).

16.12 Mulch (S02)Mulch shall be large unit 80mm+ unscreened woodchip

The Contractor shall supply a small sample bag to the Engineer for approval prior to delivery.

16.13 Fertiliser (Tree and Shrub Planting only)All plants shall be planted with controlled, slow release fertiliser such as ‘Nutricote’ or ‘Osmocote Plus’ ofcomposition 6:15:3 (N:P:K).

Fertiliser shall be applied to the backfill of each tree, shrub and groundcover in accordance with the followingapplication rates. In all cases, the fertiliser shall be mixed with the soil in the base of the prepared hole prior toplacement of the root ball.


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Plant Size Application Rate per plant (grms)RT (root trainer) 12gPb 2 12gPb 5 12gPb 8 20gPb 10 25gPb 2 50gPb 40 80gPb 60 100gPb 95 150gPb 150 400g

16.14 Delivery and Temporary StorageThe Contractor shall arrange for the delivered plants to be placed in a secure, temporary storage area on site.Plant delivery shall be limited to that able to be planted over the following 3 days.

All plants stored on site shall be watered daily.

Plant roots shall be protected at all times from sun or drying winds. Plants that cannot be planted immediately ondelivery shall be kept in the shade, well protected, with soil kept well watered.

If shoots or roots suffer slight damage they shall be carefully pruned and treated with an approved fungicidalsealant. If major damage occurs the plants shall be replaced at the Contractor's expense.

Pots and other protective materials shall not be removed until immediately prior to planting, and shall be disposedof off the site after planting. Roots shall not be left uncovered at any time.

16.15 Loss, Damage or Theft of PlantsAll loss or damage arising from any reason including theft or malicious damage prior to Practical Completion, shallbe made good by the Contractor at his own expense.

Loss or damage of plants PB28 and larger, or greater than 5 % of smaller plants (other than to create a barepatch) for any reason other than theft or vandalism, during the Defects Liability period, shall be made good by theContractor at its own expense.

A loss of 5% of plants less than (and not including) PB28 is deemed to be an acceptable loss, provided the lostplants are evenly spread over the whole of the planted area and are not noticeable as a bare patch. In the eventthat loss occurs over a confined area, the Contractor shall replace such plants at its cost. The Engineer shall havesole discretion to determine if the plants are evenly spread or in a confined area.

Any plants stolen or vandalised after Practical Completion shall be notified in writing to the Engineer who mayissue an instruction to replace the plants at agreed rates.

Those plants lost during the Defects Liability Period and not notified to the Engineer as being vandalised, shall beassumed to have died as a result of planting operations and shall be replaced at the Contractor's expense.

16.16 RubbishThe Contractor shall remove all rubbish, excess stakes, planter bags and undesirable debris, resulting fromplanting operations from the site, and make good any compaction marks or other damage resulting from theworks.


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17.0 Grassed Areas

Refer to General Arrangement Drawings showing areas of proposed grass.

Grass Seed Mix

Grass seed shall be applied at the rate of 30 gms/m2.Grass Seed shall contain;

80% Lolium perenne ‘forage’ type (with minimum of 80% certified endophyte known to provide adequateresistance to Argentine Stem Weevil Listronotus bonariensis)

10% White clover 10% Red clover

All grass seed shall be certified seed of the most recent crop available. All seed label analysis data shall complywith trade standards. Germination tests must have occurred within the past six months. The germination capacityof each constituent of the mixture should be not less than 80%, and the purity of the mixture not less than 90%.

All seed shall be free of noxious weeds. Other crop seed shall not exceed 1% and weed seed shall not exceed0.05%.

Imported Topsoil

Topsoil for use in preparing grassed areas shall be rotary hoed and free from stones.

Fertiliser (Grassed Areas only)

Fertiliser shall be agricultural grade fertiliser containing the following proportions;

Sulphate of Potash 1 part Sulphate of ammonia 2 parts Super phosphate 2 parts

Fertiliser shall be applied at the rate of 30 gms/m2, and shall be applied in accordance with the soft maintenancelandscape programme as shown in this Specification.

Lime

Where the Contractor considers that the topsoil is poor quality, Agricultural Lime may be applied to lawn areas atthe rate of 50 gm/m2 as a Variation.

Weed Control

All areas to be grassed shall be sprayed with an approved herbicide (such as Roundup or similar) according tothe manufacturer’s instructions, and at least 14 days prior to cultivation.

Weed spraying shall be in accordance with Specification B “Site Preparation”.

Cultivation

Areas to be planted and grassed shall be cultivated to a depth of 100mm to provide a suitable tilth for seeddistribution and grass growth. Weeds, root material, stones, rubble and any other debris exposed duringcultivation shall be removed and disposed off-site.

Cultivation shall be by mechanical means with rotary hoes except within the root zones of trees to be retained.Minor grading shall be carried out to ensure an even surface particularly at junctions with edgings, kerbs,manholes, paths etc.

Within the root zones of trees to be retained, cultivation shall be undertaken with hand tools (spades etc).Following cultivation, the areas shall be spread with 100mm compacted depth of topsoil as specified below.

Grassing

On completion of the topsoil cultivation, the total area of topsoiled areas affected by the works shall be sown in 2directions with the specified seed mix and fertiliser (and lime if specified) to the specified application rates.

The sown surface shall then be lightly brushed soil over to cover seeds, and lightly rolled to reduce potential dustand scour.


05th August 2010 35

The Contractor shall water the seed immediately after sowing, and then as often as necessary to keep it moistthrough germination and until the grass is established.

Fencing

For areas open to the public the Contractor shall install “Pigs Tails” and rope/warning tape fencing around theperimeter of the sown area to prevent damage to the newly prepared surface from unauthorised access.

Weed Control

During the grassed surface establishment period, the Contractor shall control weeds, which affect theestablishment of the grassed surface and in areas to be maintained by the Contractor.

Weeds are defined as any grass or broadleaf plant not included in the seed mix (or stolons) applied as part of thegrassed surface sowing and establishment.

Weeds shall be sprayed with spot spray or selective herbicide approved for use by the local authority and appliedto the manufacturer’s specifications.

Areas rendered with inadequate grass plants following weed control, shall be over sown by the Contractor to re-establish the specified grassed surface species. A fine layer of topsoil or straw mulch will be applied over theseareas to promote germination and protect you grass.

Prior to release of the Certificate of Practical Completion, the Contractor shall remove all weeds within grassedareas and re-sow as necessary.

Establishment

The Contractor is responsible to ensure that grass seed germinates and grass grows to produce grassed surfaceacceptable to the Engineer.

Any areas of grass not meeting the approval of the Engineer shall be weed sprayed, or over sown, or havefertiliser applied, or any combination or other measures applied at the Contractor’s expense to produce grassedsurface acceptable to the Engineer. (See Tolerances Clause below for acceptance criteria)

The Contractor shall mow the grass when it has reached 75mm tall. Cutting height shall be no less than 50mm onthe initial cut to be undertaken in dry conditions with sharp mower blades.

The Contractor shall mow the grass for a second time at which time the Engineer shall inspect the grass and mayapprove the grassed surface.

If necessary, the Contractor shall to dress the grassed surface with no more than 15mm depth at a time ofscreened topsoil, to eliminate minor hollows.

Tolerances

Completed topsoil shall be level with paths, paving and tops of kerbs, and manhole covers and catchpit apronsand shall be free draining and shall not have depressions capable of ponding.

Grassed surfaces shall be deemed in an acceptable condition when;

Have fully established with vigorous growth No ponding of surface water occurs Grass covers 95% of the grassed areas Singe areas of exposed soil are less than 100mm diameter in any one location Broad leafed weeds visible by eye through 360 degrees from any location are limited to 4 plants. Mowing has been undertaken in accordance with this specification

Inspections

The Contractor shall notify the Engineer for inspection of the works following:

Cultivation and preparatory work prior to seeding Completion of re-spreading topsoil prior to final levelling and seeding. Completion of turf establishment


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Completion

The grassed areas shall not be considered complete until the grass meets the acceptance tolerances detailedabove.

On completion of the work, the Contractor shall ensure all surfaces affected by the works are reinstated to pre-construction condition (e.g. topsoil to be swept off hard standing surfaces) unless specified otherwise.

The Contractor shall remove all rubbish and spoil from the site on completion of the works, leaving the site in aclean and tidy condition.

18.0 Defects Liability and MaintenanceThis section of the Specification covers the correction of defects relating to hard and soft landscaping worksinstalled by the Contractor together with maintenance of the site during the Defects Liability Period.

Soft landscaping works include all plants, grass, mulch and planting ancillaries.

Defects Liability

The Contractor shall remedy all defects relating to the hard and soft landscaping works prior to issue of theDefects Liability Certificate.

Defects relating to soft landscaping works include the replacement of dead or dying plants. The Contractor’sresponsibility relating to defects liability of soft landscaping includes the need to water, control pests and diseasesto maintain the plants to a sufficient degree to ensure the plantings establish and grow.

Maintenance

In addition to the remedy of defects, the Contractor shall undertake maintenance of the landscaping worksregularly throughout the Defects Liability Period. The degree required and frequency is detailed in thesespecifications.

The objective of maintenance is to encourage the healthy establishment of soft works to a point where thePrincipal can be assured that there are no inherent defects in the planting stock.

Area to be maintained

The area to be maintained shall be the whole site as defined on the Drawings.

Health and Safety

Repair of defects and maintenance of the works will be undertaken while the site is accessible to the public. TheContractor shall undertake all works to avoid potential harm and minimise inconvenience to the Client’s staff andthe public and avoid harm to the Contractor’s staff.

All works will be undertaken in accordance with the requirements of the Health and Safety in Employment Act andfurther requirements under “Health and Safety” as specified in section A of these specifications.

Where the public or client’s staff is likely to be at risk of harm or contact with paint, chemicals, excessive noise ordust, the Contractor shall isolate the works area with barriers, warning tape or signs (or a combination of thesemeasures) to a degree commensurate with the hazards and to the approval of the Engineer.

Where the works will affect access by vehicles or pedestrians, the Contractor shall supply all materials, labour andequipment to undertake appropriate measures to warn, divert or provide alternative access as necessary, and tothe approval of the Engineer. Blocking of access will not be permitted unless other alternative access isimpracticable and is expressly approved by the Engineer.

Barriers, warning tape, signs and works to provide alternative access shall be removed and any damage causedby those measures made good within 48 hours of the completion of the remedial or maintenance works.


05th August 2010 37

Frequency

Defects of soft landscaping shall be remedied within a reasonable time of being notified by the Engineer of thedefect and shall be completed no longer than one month after notification and prior to release of the DefectsLiability Certificate.

Watering, pest and disease control associated with defects liability of soft landscaping shall be at a frequencyproposed by the Contractor and agreed by the Engineer. The Contractor shall submit the proposed maintenanceregime to the Engineer for approval. If in the opinion of the Engineer, that the frequency of maintenance visitsproposed is inadequate, the Contactor shall amend the maintenance regime to the satisfaction of the Engineer.The approval of the maintenance regime, by the Engineer, shall not relieve the Contractor of it’s liabilities withrespect to defects, in the event that the soft landscaping is found defective.

Maintenance

Maintenance shall be undertaken in accordance with the following schedules. The final maintenance work in eachtask shall be completed immediately prior to release of the Defects Liability Certificate.

Responsive Maintenance

In addition to the routine maintenance of hard and soft landscaping programmed above, responsive monitoringand repairs as necessary should be carried out as follows:

Following a storm event, Following prolonged dry or wet periods.

Notification of Defects Liability/Maintenance Visits

The Contractor shall supply to the Engineer for their approval, a maintenance schedule detail the dates ofproposed visits and work to be undertaken. In addition, the Contractor shall notify the Engineer immediately priorthose visits are made.

Soft Landscaping - DefectsPlanting Defects

Any material or plant that is found to be defective (e.g. does not show leaf or make adequate growth) during theDefects Liability Period from any cause other than vandalism, shall be replaced at the Contractor’s expense.

Planting shall be done to a standard that is fit for purpose. If poor growth of plants is attributed to the groundpreparation or any associated horticultural operation that is within the control of the Contractor, then theContractor shall be liable for plant replacement and any other associated costs.

Where the Contractor does not advise the Engineer within one week of becoming aware, that vandalism of plantshas taken place, any damage or plant die off shall be deemed to be a defect.

Broken or damaged stakes, ties and ground anchors shall be replaced as soon as practicable. Damage to theplants resulting from delays in replacing plant supports shall be made good at the Contractors expense. Refer tothe clause relating to vandalism at the end of this Specification.

The Contractor is responsible to ensure that plants installed, survive and grow. Water is essential to achieve this.As part of the Contractor’s work relating to defects liability, the Contractor shall water the plants installed asfrequently as necessary to achieve this obligation. (Refer to clause above relating to Frequency).

The Contractor shall inspect the soft landscaping works no less than monthly to confirm the health of the plants,existence of pests or diseases or vandalism. The Contractor shall control pests, diseases or repair vandalism asdirected by the Engineer, as a Variation.

Grassed Area Defects

Grassed areas shall be deemed to be defective where they do not meet the following acceptance criteria;

Be fully established and with vigorous growth, No ponding of surface water occurs, Grass covers 95% of the grassed areas,


05th August 2010 38

Single areas of exposed soil are less than 100mm diameter in any one location, Broad leafed weeds visible by eye through 360 degrees from any location are limited to 4 weed plants. Mowing has been undertaken in accordance with this specification,

Grassed areas not meeting this specification shall be returned to seedbed condition and replanted with theappropriate turf sod or seed mixture until satisfactory turf is established, or take remedial action as agreed withthe Engineer.

Replacement Plants

Plants used to replace defective plants, shall be the same species/cultivar and similar size to those originallyspecified, supplied and approved, unless otherwise agreed between the Engineer and the Contractor. Contractorshall be responsible for any preparatory and other work necessary to enable planting to be properly carried outincluding the removal and disposal of dead plants and materials.

Dead or unhealthy plants shall be replaced within 1 month of the Contractor being aware of this condition of theplants. Any plant which is found to be defective (eg. does not show leaf or make adequate growth) from anycause other than vandalism (See below), shall be deemed to have deteriorated through poor installation and/orpoor maintenance and shall be replaced by the Contractor, at their expense.

The Contractor shall be responsible to ensure replacement plants survive and grow in accordance with theseContract Specifications.

Replacement of plants, which are damaged through vandalism, may be replaced as a variation at the discretion ofthe Engineer.

Soft Landscaping - MaintenanceGeneral

Maintenance shall include watering, weed removal, plant trimming, cultivation, insect and disease control,checking stakes and ties, pruning and other accepted horticultural operations to ensure normal and healthy plantestablishment and growth and generally keeping the area neat the tidy.

Watering

The Contractor shall water all plants over periods of dry weather as part of the Contractor’s obligations relating toDefects Liability. In addition to the defects liability requirement to ensure the plants survive and grow, theContractor shall undertake additional watering by hand or automatic systems installed by the Contractor at theirexpense, to the frequency stated in the Maintenance Schedule to create lush vegetation.

Water shall be applied until the top 300mm of topsoil around each plant is saturated.

Watering should not be undertaken during the hot part of the day. Watering nozzles shall be fine rose or sprinklerheads to prevent damage growth areas of the plants.

Weed Control

The Contractor shall remove and control weeds regularly throughout the period of maintenance. Removal ofweeds at the end of the Defects Liability/Maintenance Period is not acceptable.

All cultivated planted areas shall be kept weed free to the extent that perennial weed species are eradicated andannual weed species are well controlled. Care shall be taken to avoid disturbances of the shrub roots andexcessive compaction of the bed surface. The Contractor shall remove all arising, litter and other debris anddispose off site at the end of each day.

Additional weed control may be required in spring when the ground warms and seeds in the soil germinate.

Weeds shall be removed by hand removal where possible. Spaying of weeds with an approved organic herbicidemay be required for persistent weeds; however the visible portion of the weed shall be removed as soon as theweed has died. Herbicide application shall be spot sprayed using a protective spray nozzle/cone.

Inadequate mulch depth may allow excessive weed growth; therefore mulch shall be kept topped up to theoriginal specified depth.


05th August 2010 39

Fertiliser

Slow release fertiliser is applied to the bedding soil of plants at the time of plant installation.

Further applications of approved, NPK balanced slow-release fertiliser shall be applied in accordance with theMaintenance Schedule. Application rates shall be as recommended by the fertiliser manufacturer with regard tothe size of plant.

Fertiliser should be watered-in after application.

Fertiliser for planting areas shall be Osmocote, or similar approved, applied at the rate of 20gm/m² or at a raterecommended by the manufacturer, and in accordance with the soft landscape maintenance programme shown inthis Specification.

Noxious Pests

The Contractor shall monitor the works for insect and plant disease problems, shall identify the problem and applyappropriate remedy by accepted horticultural practices including chemical or biological methods.

The Contractor is responsible to take all suitable precautions for the safe handling and application of herbicides,fungicides and insecticides and shall use these strictly in accordance with the manufacturer’s specifications. In allcases, sprays shall be applied on windless days. Public shall be advised by signage that spraying is occurring andshall be directed away from the spray area.

Damage to neighbouring properties caused by the Contractor’s spraying, shall be made good at the Contractor’sexpense.

Mulch

The Contractor shall supply and install additional mulch and/or bark (the same material as existing) to ensure allmulch areas have a depth of no less than 100mm.

Shrubs and Ground CoverOperations

The Contractor shall maintain planting beds to establish good plantings, and achieve a high level of lushvegetation with visual impact. Maintenance shall include weed control, trimming, watering and fertilising. Groundcover plants should grow to fully cover the ground and thus reduce weed growth and maintenance.

Planting beds shall be maintained to a neat a tidy appearance in the same condition as when the works werecompleted at Practical Completion.

Trimming

The Contractor shall undertake regular trimming of shrubs to maintain the following aspects:

Removal of dead or old weak growth, Cutting back to encourage growth vigour, Thinning out mass planted areas to allow stronger plants to dominate.

Generally, pruning operations to maturing shrubs will be unnecessary for some time.

Grassed Areas

All grassed areas shall be protected and maintained to produce an even sward of grass at a uniform height andhealthy colour by watering, mowing and spraying to maintain a good quality turf with a neat appearance to theOwner’s satisfaction.

Newly sown areas and grassed areas are to be protected against traffic until the grass is well established.

Grass Cutting

Grass cutting shall only be undertaken in dry conditions using a suitable mower with sharp blades. The first cutshall be after the grass has reached 70mm high to cut no more than one third of the height of grass.

Cutting thereafter shall be undertaken in accordance with the maintenance schedule above.


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Before each cut, all litter, stones and other debris must be removed so that a tidy appearance is maintained at alltimes.

Edges to paths or around trees or structures shall be neatly trimmed each time the grass is mowed.

The Contractor shall exercise all due care in the use of mowing and trimming machines to minimise flying debrishazards. Mowers shall be fitted with stone guards designed for the mower. Safety guards shall be supplied for allother equipment used.

Weed and Pest Control

Undesirable weeds in grassed areas shall be sprayed with approved herbicide strictly in accordance with themanufacturer’s specifications and with all necessary safety precautions.

Undesirable weeds shall be sprayed with Roundup or similar approved chemical mixed and applied strictlyaccording to the manufacturer’s specifications. Selective weed spays may be used in appropriate circumstances.

Fungal infection and insect attack shall be controlled with appropriate chemical sprays as approved by theEngineer, applied strictly in accordance with the manufacturer’s specifications.

Grassed Surface

If necessary, the turf shall be top dressed with clean screened soil to eliminate minor hollows. Applications shallbe less than 15mm at any one time, preferably applied in spring or autumn.

All grassed areas shall be protected and maintained by watering, and mowing and spraying to maintain a goodquality turf with a neat appearance to the Engineer's satisfaction until the end of the Defects Liability/maintenancePeriod.

Final establishment shall be accepted at the discretion of the Engineer, with regard to the acceptance criteria inclause 6.2. If establishment is unsatisfactory the Contractor shall return the area to seedbed condition and replantwith the appropriate turf sod or seed mixture until satisfactory turfgrass is established, or take remedial action asagreed by the Engineer.

Protection of Trees and Structures

Care shall be taken to avoid damage to existing and newly planted trees during cutting or trimming operations.Generally areas around trees shall be trimmed by small appliances (weedeater or handmower) for a minimumdiameter of 1.0 m around trees to avoid ring barking.

The Contractor shall take due care to locate and protect all structures from damage by mowers and make goodany damage. Boundary pegs are included in structures to be protected.

Litter and VandalismLitter

Litter shall be removed from hard and soft landscaping areas to frequency specified with the MaintenanceSchedule.

Litter shall refer to all extraneous waste material which is detrimental to the appearance of the site and shallinclude stones, bricks, debris, paper, cardboard, confectionery and other wrappings, bottles, cans, plasticcontainers, plastic, paper, and glass, able to be disposed in council street side rubbish collections.

Litter shall also refer to domestic refuse including items generally dumped from the boot of a car e.g.: bin bagsand vegetative matter.

Broken glass shall be swept from hard surfaces and raked from grassed areas. Attention is required to the promptremoval of glass bottles to reduce the likelihood of glass being broken by others.

All litter shall be removed prior to any grass cutting operations.

Litter shall be removed and disposed off site.

Vandalism

The Contractor shall notify the Engineer of areas, which have in its opinion been vandalised, or damaged withgraffiti. The Engineer may at his/her discretion issue instructions for the vandalism to be reinstated as a Variation.


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Removal of graffiti shall be cleaned off or painted over as directed by the Engineer. Where paint is applied tocover graffiti, the paint shall be the same as specified for the initial painting. Different paint type or colour shall notbe permitted. Preparation for and application of paint shall be to the paint manufacturers specifications.

Any plants vandalised after Practical Completion shall be notified in writing to the Engineer.

Those plants which fail and are not notified to the Engineer shall be assumed to have died as a result of plantingoperations and shall be replaced at the Contractor's expense.

The cost of plants or other landscape works deemed to have failed due to theft, wilful damage or vandalism shallbe the Principal’s responsibility.

Where planting is suffering damage as a result of wear and tear, the Contractor shall advise the Engineer whomay issue instructions to provide temporary barriers or substitute damaged species with a more resilient plantingsolution as a variation.

Fly Tipping

The Contractor shall notify the Engineer of suspected fly tipping to seek approval to remove it.

Fly tipping shall refer to items such as soil, aggregate, builders’ rubble, motor vehicle bodies, beds, mattresses,fridges and televisions or any other larger item requiring removal by machine.

Inspections

The Contractor shall notify the Engineer for inspection of the works following:

Completion of Defects Liability Period prior to issue of Defects Liability Certificate

Completion

On completion of the Defects Liability Period and prior to issue to the Defects Liability Certificate, the Contractorshall undertake/supply the following;

Repair all defects to the satisfaction of the Engineer and undertake all maintenance as required inaccordance with the maintenance schedule.

Provide Written summary of all maintenance visits, machinery used, staff employed and weather duringdefects liability/maintenance visits,

n) All pipe work shall be flushed with water until clean water is flowing out each and every pipe end beforeclosing off pipe ends with appropriate fittings. Where there are parallel driplines these may be looped intoeach other to create a ring type system.


05th August 2010 A

Appendix A

Soft LandscapeMaintenance Schedule


05th August 2010 a-1

Appendix A Soft Landscape Maintenance Schedule

SOFT LANDSCAPEMAINTENANCE SCHEDULE

`

GROWING SEASON

AT

CO

MPL

ETIO

N

SPRING SUMMER AUTUMN WINTER

SE

P

OC

T

NO

V

DE

C

JAN

FEB

MA

R

AP

R

MA

Y

JUN

JUL

AUG

TREES, SHRUBSANDGROUNDCOVERS

Staking Monthly – As Required

Trimming Monthly – As Required

Hedge trimming

Fertiliser

Weed Control Monthly

Watering3 Times Per Week

During Dry Periods

Replacement Monthly – As Required

Wetland Planting

Weed Control Monthly

Replacement Monthly – As Required

GRASS

Mowing(Medium) Fortnightly Monthly Fortnightly Monthly

Mowing (Rough) Monthly Monthly Monthly 2 Monthly

Fertiliser

Weed Control

Over Sowing

LITTER REMOVAL

Removal Monthly

MULCH

Top Up


05th August 2010 B

Appendix B

Landscape ConstructionMonthly EstablishmentReport


05th August 2010 C


05th August 2010 b-1

Appendix B Landscape Construction Monthly EstablishmentReport

Contract No:

Job Name:

Contractor:

Defects Liability Period: From: To:

Inspect

Date

Watering Weed

Control

LitterRemoval

Landscape

Maintenance–

list

Plant /LawnVandalism, Lossesand Damage

- likely causes

Signed

Project Specification - Hurunui District main street... · 2.0 Quality Assurance 4 2.1 Introduction...

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