Works Specification Civil 2005 - Blacktown City...A(BS)105S Standard Pathway Barrier . A(BS)106M Standard Grated Gully Pit A(BS)107M Standard Junction Pit A(BS)108M Minor Drainage

Works Specification

Civil

2005

Growing With Pride

Amendment Date Original issue February 2005 Plans 101M,106M,113M,124M,131M,134S June 2009 Certified stockpiles (Glossary, S8.1 to 8.4) June 2017 Amended 15. standard drawings A(BS) 113M standard street signs and post

October 2018

Standard Drawing A(BS) 136S deleted July 2020 Amended entries in Glossary and guide to reflect industry and Act updates, job titles, Council Department names

July 2020

Telstra amended to telecommunications July 2020 1.4.2, 1.4.3 updates to working hours July 2020 6.3.1 – FRC not permitted in future Council stormwater assets July 2020 7.14 – Drainage Pits exceeding 1.2 m amended to 0.9 m July 2020 Update to current editions of Australian Standards July 2020

BLACKTOWN CITY COUNCIL WORKS SPECIFICATION CIVIL – 2005

ENGSPEC Revision 1 - February 2005

TABLE OF CONTENTS

SUMMARY

1. GENERAL SPECIFICATION OF WORKS

2. TRAFFIC CONTROL FOR WORKS IN PUBLIC ROADS

3. EROSION AND SEDIMENT CONTROL

4. SITE CLEARING AND/OR GRUBBING

5. EARTHWORKS AND FORMATION

6. STORMWATER DRAINAGE

7. CONCRETE STRUCTURES

8. FLEXIBLE ROAD PAVEMENTS

9. SPRAYED BITUMINOUS SURFACING

10. SUPPLY AND LAYING OF ASPHALTIC CONCRETE

11. CONCRETE AND SEGMENTAL PAVEMENTS

12. STREET FURNITURE

13. GRASSING

14. DEFECTS LIABILITY PERIOD

15. STANDARD DRAWINGS


ENGSPEC Revision 1 - February 2005 - i -

TABLE OF CONTENTS

CONTENTS PAGE NO.

GLOSSARY ......................................................................................... viii

1 GENERAL SPECIFICATION OF WORKS

1.1 General ........................................................................................................ 1 - 1 1.2 Responsibilities of the Parties ..................................................................... 1 - 2 1.3 Prior to Commencement .............................................................................. 1 - 4 1.4 General Requirements ................................................................................. 1 - 6 1.5 Inspection of the Works and Materials ........................................................ 1 - 8 1.6 Inspection of Materials ................................................................................ 1 - 12 1.7 Tolerances ................................................................................................... 1 - 15 1.8 Site Facilities and Amenities ....................................................................... 1 - 18 1.9 Alignment and Setting Out of Works .......................................................... 1 - 19 1.10 Care of Survey Marks .................................................................................. 1 - 19 1.11 Service Conduits.......................................................................................... 1 - 19 1.12 Environment ................................................................................................ 1 - 21 1.13 Reinstatement of Damaged Infrastructure ................................................... 1 - 22 1.14 Cleaning and Reinstatement of External Areas ........................................... 1 - 22 1.15 Carrying Out Work in Public Roads or Footways ....................................... 1 - 22

2 TRAFFIC CONTROL FOR WORKS IN PUBLIC ROADS

2.1 Description .................................................................................................. 2 - 1 2.2 Road Occupation Licence ........................................................................... 2 - 1

3 EROSION AND SEDIMENT CONTROL

3.1 Description .................................................................................................. 3 - 1 3.2 General ........................................................................................................ 3 - 1 3.3 Sediment and Erosion Control Devices ....................................................... 3 - 1 3.4 Maintenance ................................................................................................ 3 - 4 3.5 Stabilisation of Disturbed Areas .................................................................. 3 - 5 3.6 Dust Control ................................................................................................ 3 - 5 3.7 Diverting Water and De-watering ............................................................... 3 - 6 3.8 Turfing/Grassing at Completion of Civil Works ......................................... 3 - 6

4 SITE CLEARING AND/OR GRUBBING

4.1 Description .................................................................................................. 4 - 1 4.2 Notice of Commencement ........................................................................... 4 - 1 4.3 Clearing and Grubbing ................................................................................ 4 - 1


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CONTENTS PAGE NO.

4.4 Trees to be Retained .................................................................................... 4 - 1 4.5 Removal of Trees Left in Filled Areas ........................................................ 4 - 2 4.6 Disposal of Material .................................................................................... 4 - 2 4.7 Restoration of Site ....................................................................................... 4 - 2 4.8 Private Property ........................................................................................... 4 - 2 4.9 Damage ........................................................................................................ 4 - 3

5 EARTHWORKS AND FORMATION

5.1 Description .................................................................................................. 5 - 1 5.2 Removal of Topsoil ..................................................................................... 5 - 1 5.3 Removal of Unsuitable Materials ................................................................ 5 - 1 5.4 Compaction Prior to Placing of Fill ............................................................ 5 - 2 5.5 Excavation ................................................................................................... 5 - 2 5.6 Surplus Spoil ............................................................................................... 5 - 2 5.7 Imported Filling ........................................................................................... 5 - 2 5.8 Embankments .............................................................................................. 5 - 3 5.9 Placement and Compaction of Fill .............................................................. 5 - 3 5.10 Boxing Out .................................................................................................. 5 - 4 5.11 Trimming and Compaction of Earthworks and Subgrades ......................... 5 - 4 5.12 Batters .......................................................................................................... 5 - 5 5.13 Site Regrading ............................................................................................. 5 - 5 5.14 Replacement of Topsoil............................................................................... 5 - 5 5.15 Progress Inspections .................................................................................... 5 - 6 5.16 Entrance To Side Roads And Adjacent Property ........................................ 5 - 6

6 STORMWATER DRAINAGE

6.1 Description .................................................................................................. 6 - 1 6.2 Drainage Line Location ............................................................................... 6 - 1 6.3 Types of Pipes and Box Culverts ................................................................ 6 - 1 6.4 Excavation ................................................................................................... 6 - 3 6.5 Allowances In Excavation Quantities.......................................................... 6 - 4 6.6 Pipe Bedding Material ................................................................................. 6 - 4 6.7 Pipe Laying.................................................................................................. 6 - 4 6.8 CCTV Inspections of Drainage Structures .................................................. 6 - 5 6.9 Subsoil Pipes in Stormwater Drainage Trenches ........................................ 6 - 6 6.10 Method of Jointing ...................................................................................... 6 - 6 6.11 Concrete Encasing ....................................................................................... 6 - 6 6.12 Concrete Bulkheads ..................................................................................... 6 - 7 6.13 Direct Connections ...................................................................................... 6 - 7 6.14 Precast Concrete Box Culverts .................................................................... 6 - 7 6.15 Drainage Pits ............................................................................................... 6 - 7 6.16 Inspection Prior to Backfilling .................................................................... 6 - 7


ENGSPEC Revision 1 - February 2005 - iii

CONTENTS PAGE NO.

6.17 Backfilling ................................................................................................... 6 - 8 6.18 Inter-allotment Drainage ............................................................................. 6 - 8 6.19 Sub-soil Drains ............................................................................................ 6 - 9

7 CONCRETE STRUCTURES

7.1 Description .................................................................................................. 7 - 1 7.2 Concrete Materials and Slump .................................................................... 7 - 1 7.3 Concrete Testing and Strength .................................................................... 7 - 2 7.4 Reinforcement ............................................................................................. 7 - 3 7.5 Formwork .................................................................................................... 7 - 4 7.6 Concrete Placing.......................................................................................... 7 - 5 7.7 Construction Joints ...................................................................................... 7 - 5 7.8 Removal of Forms ....................................................................................... 7 - 5 7.9 Concrete Finishing ...................................................................................... 7 - 6 7.10 Curing .......................................................................................................... 7 - 6 7.11 Foundations ................................................................................................. 7 - 6 7.12 Kerb and Gutter ........................................................................................... 7 - 7 7.13 Concrete Footway, Pathway and Driveway Pavements .............................. 7 - 9 7.14 Drainage Pits ............................................................................................... 7 - 10 7.15 Precast Concrete Sections (Box Culverts and Pre-formed Bends). ............. 7 - 11 7.16 Cast Iron and Steel Fittings ......................................................................... 7 - 11 7.17 Pattern Stencilled Concrete Pavement for

Median Islands and Roundabout ................................................................. 7 - 11

8 FLEXIBLE ROAD PAVEMENTS

8.1 Description .................................................................................................. 8 - 1 8.2 Crushed or Ripped Hawkesbury Sandstone ................................................ 8 - 3 8.3 Crushed Rock (DGB 20, DGS 20 and DGS 40) ......................................... 8 - 4 8.4 Recycled Material........................................................................................ 8 - 4 8.5 Formation Fill Material ............................................................................... 8 - 5 8.6 Delivery ....................................................................................................... 8 - 5 8.7 Spreading ..................................................................................................... 8 - 5 8.8 Compacting and Trimming ......................................................................... 8 - 6 8.9 Pavement and Density Testing .................................................................... 8 - 7 8.10 Proof Testing ............................................................................................... 8 - 7 8.11 Progress Inspections .................................................................................... 8 - 8 8.12 Inspection, Sampling and Testing ............................................................... 8 - 8 8.13 Defective Material ....................................................................................... 8 - 8 8.14 Completed Pavement Surface ..................................................................... 8 - 8 8.15 Opening Pavement To Traffic ..................................................................... 8 - 8 8.16 Maintenance ................................................................................................ 8 - 9


ENGSPEC Revision 1 - February 2005 - iv

Contents Page No.

9 SPRAYED BITUMINOUS SURFACING

9.1 Description .................................................................................................. 9 - 1 9.2 Supply of Materials ..................................................................................... 9 - 1 9.3 Measurement of Materials ........................................................................... 9 - 1 9.4 Quality of Materials ..................................................................................... 9 - 2 9.5 Sampling of Materials ................................................................................. 9 - 2 9.6 Plant ............................................................................................................. 9 - 3 9.7 Preparation of Pavement.............................................................................. 9 - 3 9.8 Control of Work .......................................................................................... 9 - 3 9.9 Operation of Sprayer ................................................................................... 9 - 4 9.10 Heating of Binder ........................................................................................ 9 - 4 9.11 Cutting Back Bitumen Binder ..................................................................... 9 - 5 9.12 Application of Binder .................................................................................. 9 - 5 9.13 Pre-coating of Aggregate ............................................................................. 9 - 7 9.14 Application, Distribution and Incorporation of Aggregate.......................... 9 - 7 9.15 Compaction ................................................................................................. 9 - 8 9.16 Traffic .......................................................................................................... 9 - 8 9.17 Defective Work or Materials ....................................................................... 9 - 8 9.18 Waste Materials ........................................................................................... 9 - 8 9.19 Maintenance ................................................................................................ 9 - 9

10 SUPPLY AND LAYING OF ASPHALTIC CONCRETE

10.1 Description .................................................................................................. 10 - 1 10.2 Mineral Aggregates ..................................................................................... 10 - 1 10.3 Mineral Filler ............................................................................................... 10 - 1 10.4 Binder .......................................................................................................... 10 - 1 10.5 Additives ..................................................................................................... 10 - 1 10.6 Rejuvenating Agent ..................................................................................... 10 - 1 10.7 Proportioning of Mixes................................................................................ 10 - 1 10.8 Mixing Procedure ........................................................................................ 10 - 4 10.9 Transport ..................................................................................................... 10 - 4 10.10 Preparation of Pavement.............................................................................. 10 - 5 10.11 Tack Coat .................................................................................................... 10 - 5 10.12 Spreading ..................................................................................................... 10 - 6 10.13 Joints ............................................................................................................ 10 - 7 10.14 Compaction ................................................................................................. 10 - 9 10.15 Finished Pavement Properties ..................................................................... 10 - 11 10.16 Weighbridge Dockets .................................................................................. 10 - 11 10.17 Provision For Traffic ................................................................................... 10 - 11 10.18 Cleaning Of Gutters And Gully Pits ............................................................ 10 - 11 10.19 Maintenance ................................................................................................ 10 - 11


ENGSPEC Revision 1 - February 2005 - v -

Contents Page No.

11 CONCRETE AND CLAY SEGMENTAL PAVEMENTS

11.1 Description .................................................................................................. 11 - 1 11.2 Paving Units ................................................................................................ 11 - 1 11.3 Subgrade ...................................................................................................... 11 - 1 11.4 Base Course For Roads, Driveways, Pedestrian Plazas

and Community Title Roads........................................................................ 11 - 1 11.5 Edge Restraints ............................................................................................ 11 - 2 11.6 Bedding Sand .............................................................................................. 11 - 2 11.7 Placement of Paving Units in Roads and Footways .................................... 11 - 3 11.8 Specifications for the Selection of Clay and Concrete Pavers

for Use in Public Areas ............................................................................... 11 - 5

12 STREET FURNITURE

12.1 Street Name Signs ....................................................................................... 12 - 1 12.2 Posts ............................................................................................................ 12 - 1 12.3 Fixing of Plates ............................................................................................ 12 - 1 12.4 Guide Posts .................................................................................................. 12 - 2 12.5 Service Conduit Signs ................................................................................. 12 - 2

13 GRASSING

13.1 Description .................................................................................................. 13 - 1 13.2 Preparation .................................................................................................. 13 - 1 13.3 Grassing by Seeding .................................................................................... 13 - 1 13.4 Fertilisers ..................................................................................................... 13 - 2 13.5 Sowing ......................................................................................................... 13 - 2 13.6 Hydroseeding .............................................................................................. 13 - 2 13.7 Grassing by Turfing ..................................................................................... 13 - 2 13.8 Care of Grassed Areas ................................................................................. 13 - 3 13.9 Mowing ....................................................................................................... 13 - 3 13.10 Establishment .............................................................................................. 13 - 3 13.11 Maintenance ................................................................................................ 13 - 4

14 DEFECTS LIABILITY/MAINTENANCE PERIOD

14.1 Description .................................................................................................. 14 - 1 14.2 Subdivisions ................................................................................................ 14 - 1 14.3 All other developments ............................................................................... 14 - 1


ENGSPEC Revision 1 - February 2005 - vi -

15 STANDARD DRAWINGS

A(BS)101M Standard Kerbs and Gutters

A(BS)102S Standard Residential Footway and Layback Crossing

A(BS)103S Standard Industrial and Commercial Footway Crossing

A(BS)104M Path Paving at Intersections and Kerb Ramp Details

A(BS)105S Standard Pathway Barrier

A(BS)106M Standard Grated Gully Pit

A(BS)107M Standard Junction Pit

A(BS)108M Minor Drainage Collections

A(BS)109M Standard Surface Inlet Pits

A(BS)110S Accessway Detail

A(BS)111 Step Irons

A(BS)112M Typical Arrangement of Threshold Pavements at Intersections

A(BS)113M Standard Street Signs and Posts

A(BS)114S Standard Floodway Warning Signs and Mounting Bracket

A(BS)115M Construction of Traffic "Shake-Down"

A(BS)116S Channel Check Dams and Culvert Inlet Protection

A(BS)117S Sedimentation Basin

A(BS)118 Not Allocated

A(BS)119S Sediment Traps for Surface Inlet Pits


A(BS)121M Sediment Fence and Filters


ENGSPEC Revision 1 - February 2005 - vii -

A(BS)122S Siltation Traps for Kerb Inlets

A(BS)123M Perimeter and Diversion Banks

A(BS)124M Typical Locations for Signs and Markings Associated with Wombat Crossings

A(BS)125M Standard Indented Bus Bay

A(BS)126S Typical Calming Device for Residential Roads

A(BS)127S Rural Vehicular Crossing

A(BS)128S Specification for Bus Shelter Concrete Base/Apron - with Path Paving

A(BS)129S Specification for Bus Shelter Concrete Base/Apron - without Path Paving

A(BS)131M Standard Wombat Crossing, All Roads

A(BS)134S Standard Bicycle Path

A(BS)136S deleted

A(BS)137S Special Pathway Barrier for Electric Mobility Scooter


ENGSPEC Revision 1 - February 2005 - viii

GLOSSARY

ACRS Australian Certification Authority for Reinforcing Steel. Applicant Any person/s, company or entity representing the Applicant for the

purpose of constructing the Works. This may also include Council. AR&R (1998) IEAust Australian Rainfall and Run-off Manual (1998). ARI Average Recurrence Interval. AS Australian Standards published by the Standards Association of

Australia current at the time of application. BPN British Pendulum Number (unit used to measure slip/skid resistance) Certified Stockpile A stockpile that has been certified by a NATA registered

laboratory as complying with Council's specification Council Blacktown City Council as represented by its Employees. Council Engineer Person approving or inspecting works on behalf of Council.

DC or Consent Notice of Determination giving Subdivision or Development Consent.

Development Supervisor Person carrying out the day to day inspections on behalf of Council.

Documents All expressed and implied; Specifications, Standards, Drawings and Correspondence, which are related to the works and referred to by Council or issued by Council.

Engineer or Registered Engineer

Person who is a practising engineer registered on the Institution of Engineers Australia, National Professional Engineers Register (NPER) in the relevant field of work.

EPA Environment Protection Authority. EP&A Act Environmental Planning and Assessment Act 1979, as amended. Excavation This shall mean excavation in all classes of material. FRC pipe Fibre Reinforced Cement pipe. Maintenance Period Period of a minimum of six (6) months after release of the Plan

of Subdivision or Development Completion, or such time as Council deems reasonable for the Final Certificate of Completion.

NATA National Association of Testing Authorities, Australia. NATA registered Laboratory

A laboratory accredited with NATA to undertake the specific test referred to in the body of the text.

OSD On-site Stormwater Detention. POEO Protection of the Environment Operations Act 1997 PSD Permissible Site Discharge. Registered Certifier Person qualified to issue certificates and operate as Principal

Certifying Authority (PCA) under the Environmental Planning and Assessment Act 1979.

RCP Reinforced Concrete Pipe. RHS Rectangular Hollow Section. RMS Roads and Maritime Services, New South Wales.


ENGSPEC Revision 1 - February 2005 - ix -

GLOSSARY (Cont'd)

SafeWork SafeWork NSW

Site Area of land being developed by Subdivision or Development Approval.

SSV Site Storage Volume. Supervisor The person appointed by the Applicant to supervise the construction

Works and who shall be his representative. Surveyor Registered Surveyor. UCS Unconfined Compressive Strength. UPVC pipe Unplasticised Polyvinyl Chloride (referring to pipes). VCP Vitrified Clay Pipe. WAE Works-As-Executed Plan. WH&S Work Health and Safety Works The development of land as described by the Drawings and

Specifications (the Documents) as proposed by the Applicant and as cited and approved by Council "For Construction" including all the area of the land being developed.

1:5 (V:H) Slope of 1 vertical to 5 horizontal.


ENGSPEC Revision 1 - February 2005 1 - 1

1 GENERAL SPECIFICATION OF WORKS

1.1 GENERAL

1.1.1 This Specification, which is the accompanying document to Council's Engineering Guide for Development, has been compiled to outline Council's general procedures and practices in respect of all the associated construction requirements for drainage, roads, erosion control, and ancillary details within the City of Blacktown.

1.1.2 Council's basic objective is to preserve, enhance and develop the amenity of

the City with specific reference to safety, convenience and long term cost effectiveness. This Specification has been prepared to assist the Applicant to proceed with development by fully informing them of Council's requirements with respect to the construction of assets which will eventually be vested in, and maintained by Council, to ensure that such works are constructed to a high standard.

1.1.3 The Documents referred to in this Specification shall include but not be

limited to Engineering Plans, approved by the Council, Blacktown City Council's, "Engineering Guide for Development", Australian Standards, "Australian Rainfall and Runoff, Institution of Engineers, 1998" and the Statutes, Acts and By-Laws of the Governments of New South Wales and Australia. All of these documents compliment each other and shall be referenced in conjunction with this Specification.

1.1.4 In this specification, whenever the term "Engineering Plan" is used, this is

deemed to also be a reference to engineering plans associated with Construction Certificates and Subdivision Works Certificates issued by Council or Registered Certifiers under the EP&A Act 1979, and Engineering Approvals issued by Council under the Roads Act 1993 and Local Government Act 1993.

1.1.5 This Document is the Specification defining Construction Details and the Obligations of Council and the Applicant. It provides details relevant to the Development and is binding on all works carried out. Obligations between Council and the Applicant are inherent and binding once the Engineering Plans have been approved and issued by Council.

1.1.6 Council's "Engineering Guide for Development", gives guidance to defining the Engineering Design details required by Council and which must be followed by the Applicant or their Representative in order to obtain approval of Engineering Plans.



1.1.7 No departure or change will be permitted from approved Engineering Plans during construction except by written consent from Council, or as may be approved by Council's Representative in the field.

1.1.8 Variations to this specification may only be authorised by Council employees.

Persons accredited or acting under the Environmental Planning and Assessment Act as registered certifiers are specifically excluded from altering, adjusting or changing this specification in any way.

1.1.9 The Documents, including any written directions issued by Council to the

Applicant, are binding on the Applicant. Council neither accepts responsibility nor implies or guarantees any directions given to the Applicant for any subsequent physical or contractual damages received by the Applicant.

1.1.10 Where in the Documents reference is made to testing and/or sampling by a

NATA registered laboratory, it shall be understood that the laboratory must be registered by NATA to undertake the specific tests being referred to.

1.1.11 Non Council Specifications

Where within this specification reference is made to a specification from an external source such as the RMS and there arises conflict between some part of Councils specification and the external referenced specification then Councils specification shall have priority insofar as the resolution of the point of conflict is concerned.

Where this specification makes reference to an Australian Standard that has been superseded by a new or updated version, then the new current version shall be deemed to apply.

1.2 RESPONSIBILITIES OF THE PARTIES

1.2.1 Council's Responsibilities

1.2.1.1 Council Inspections

Council will provide Inspectors to progressively review the work of the Applicant. The provision of Inspectors in no way limits the Applicant's full responsibility for completing the works in accordance with sound Engineering Practice and Principles and in accordance with the intent and purpose of the Documents. Nor does the provision of such supervisors and the various inspections carried out by them relieve the applicant of any responsibility to comply with all WH&S responsibilities encumberant upon them by such works.



1.2.1.2 Final Approval

Final approval of the works will be issued by Council after inspections and receipt of relevant documents from the Applicant showing compliance of the Works with the Documents and once all Bonds, Fees, Contributions and other Monies required by Council have been paid.

1.2.1.3 Notices to be in Writing

All notices, applications and requests given to the Applicant by Council during the Works will be given in writing. The Applicant will not be entitled to rely upon any verbal notice, application or request, notwithstanding any arrangement to the contrary at any time.

1.2.2 Applicant's Responsibilities

1.2.2.1 The Documents

The Works shall be completed in accordance with the intent and purpose of the Documents. The approved copies of the Documents must be kept on-site at all times and be available for inspection by Council.

1.2.2.2 Access by Council

The Applicant must allow complete and unhindered access of Council to the site of works for the purpose of inspecting materials and the Works in Progress.

1.2.2.3 Work by Service Supply Authorities and/or other Contractors

The applicant must permit and maintain trafficable access for Service supply authorities, their workers and subcontractors at all times. The applicant must not do anything to hinder such access or to endanger the works being undertaken or the workers undertaking such works.

1.2.2.4 Written Approval

The Applicant must not proceed with any part of the works until written approval has been received from Council.



1.2.2.5 Completion of Works

It is the Applicant's responsibility to complete or to cause the completion of the Works in accordance with the Documents and in a workmanlike manner. Inspection by Council does not relieve the Applicant of their responsibility to supervise or to arrange the supervision of the Works. Inspections are for the purpose of enabling Council to satisfy itself that the Works are being carried out in accordance with the Documents and that the Works are in a suitable state for Council's acceptance. Consequently, any defects that develop before the Works are accepted by Council will be required to be made good even though the defective work may have previously been approved.

1.2.2.6 Cleaning of Gutters and Gully Pits

All gutters and gully pits located within the boundaries of the work shall be cleaned and kept clean during the period of contract, including the maintenance period, of all silt, debris, rubbish and surplus aggregate arising out of the execution of the works of the contract. All requirements of the Protection of the Environment Operations (POEO) Act 1997 shall be complied with.

1.2.2.7 Maintenance

All works undertaken within the road reserve shall be fully maintained by the applicant for the duration of the specified maintenance period.

1.2.3 Registered Certifiers' Responsibilities

Registered Certifiers may issue Subdivision Works Certificates and Compliance Certificates for subdivision and development works in accordance with the requirements of the EP&A Act 1979.

Registered Certificates do not have any authority to issue Engineering Approvals or carry out inspections for works on Public Roads under the Roads Act 1993.

1.3 PRIOR TO COMMENCEMENT

1.3.1 General

1.3.1.1 Council must approve for construction all Documents prepared for the Works.

The Applicant must obtain consents from all relevant Statutory Authorities as required by Council prior to any works being commenced.



Where necessary, approval from adjoining landholders for access and/or right of way must be obtained prior to approval of the Documents.

1.3.1.2 Council must be given 7 days written notice before any works begin on site.

1.3.1.3 A site meeting between the Council and Applicant shall take place before

construction activities commence.

1.3.2 Insurance

1.3.2.1 Copies of Insurance Documents

The Applicant shall provide certified copies proving the currency of Public Liability Insurance for $10 million and full Workers Compensation insurance on all Works, as required by NSW Statute. Insurances must be kept current for the duration of the Works.

1.3.3 Adequacy of the Applicant's Site Representative

Before construction is commenced the Applicant shall ensure that suitably Qualified Supervisory Staff are available to control the Works.

The Applicant shall advise Council prior to commencement in writing of the name of the person(s) appointed as their representative for the Works (hereinafter known as the Supervisor).

1.3.4 Permits and Licences Issued by Council

The Applicant must determine, by consultation with Council, whether any Road Opening Permit, Work Zone Permit or Road Occupation Licence is required.



1.4 GENERAL REQUIREMENTS

1.4.1 Provision for Traffic (Public Roads)

The Applicant shall not obstruct, and shall be held responsible for, the safety of traffic, vehicular and pedestrian, and must provide all security, lights, barriers, signs and fences necessary to prevent any accident or public or private damage or loss, and shall regulate traffic during the progress of the Work, in accordance with the requirements of AS 1742. 3-2019. If necessary, they shall provide for traffic by its diversion to an alternative route approved by Council or by the formation of side tracks alongside the Works, or by the construction of one half of the road at a time leaving the other half available for traffic. The Applicant shall not, by their operations, obstruct any side road or branch track, nor shall they break down any fences, or damage public or private utilities, services nor obstruct any drain or watercourse. When such obstructions or breakages cannot be avoided the Applicant shall at once remove such obstructions and make adequate provision for traffic and immediately repair such breakages. This Section shall also be read in conjunction with Section 2 of this specification.

Worksite safety audits may be undertaken, without prior notice, by authorised Council Officers on all works involving any Council asset. Any non-conformance highlighted by such audits shall be rectified within 24 hours or as otherwise directed by the audit officer/s.

In the event of their failing to rectify any of the abovementioned causes, the Council reserves the right to do so after giving the Applicant 24 hours' notice in writing, except in cases of emergency, of its intention, and the whole of the cost of such work incurred by the Council will be a legitimate charge payable by the Applicant.

The Applicant shall provide Council with 24-hour contact name and telephone number for emergency reference.

1.4.2 Working Hours

Unless otherwise approved, the Works shall be carried out in daylight hours between 7.00 am to 6.00 pm Monday to Friday inclusive, and 8.00 am to 1.00 pm Saturdays, subject to legislative requirements. No construction work is to take place on Sundays and public holidays without prior approval. All routine inspections must be carried out Monday to Friday unless other arrangements have been made.

1.4.3 Delivery Hours

No plant, equipment or materials shall be delivery to the work site outside the hours of 7.00 am to 6.00 pm, Monday to Friday and 8.00 am to 1.00 pm Saturdays, without prior approval. No deliveries shall take place on Sundays.



1.4.4 Damage to or Alterations of Existing Services

Prior to commencing any works the applicant shall confirm the location of all existing and proposed services with the relevant authorities.

The greatest care shall be exercised during the progress of the Works to avoid damage to any utility service and the applicant shall be responsible for any damage caused by them or their agents directly or indirectly. Where existing services are known to impact on the proposed works, these shall be located by hand prior to the adjacent works commencing.

If, as a result of the Works, any alterations to existing utility service are considered necessary by Council or the relevant service authority, it shall be the responsibility of the Applicant to make the necessary arrangements with the appropriate Authority(s) prior to approval of the engineering plans and to accept full responsibility for any and all costs associated with such utility adjustments.

1.4.5 Entry Upon Adjoining Property

The Applicant or their Representative shall not commit any act of trespass and shall effectively protect all adjoining properties and owners against any loss, damage or injury that may occur or be occasioned by the Works. If instructed by Council, the Applicant shall remove from the site any employee offending against the provisions of this Section.

All property which has been disturbed as a result of the Applicant's activities shall be reinstated. The reinstated property, as in surface finishes or fences or other property, shall be reinstated to a finish similar to that which existed prior to disturbance or to an alternative material/surface as agreed to in writing by the affected property owner.

1.4.6 Debris Disposal

Burning off by open fire is prohibited by the provisions of the Protection of the Environment Operations Act 1997, as amended. Disposal of all debris shall be to an appropriate registered waste facility. Records of disposal dockets are to be made available to Council upon request.

1.4.7 Use of Appropriate Standards for Construction

It is the responsibility of the Applicant to complete all works in accordance with Council's Works Specification – Civil.



1.5 INSPECTION OF THE WORKS AND MATERIALS

1.5.1 Inspection of Works

The Applicant shall at all and at any time, give uninterrupted access, and afford every facility for the inspection and examination by Council of the Works or materials that may be required, at any place where the said work or materials are being prepared. The Applicant, when required by Council, shall provide all particulars as to the mode and place of manufacture and source of supply of any of the materials to be used. Australian made goods and materials should be used in preference to imported goods.

1.5.2 Schedule of Mandatory Inspections

The Applicant must ensure that mandatory inspections are carried out at the following stages:

1.5.3 Mandatory Construction Inspections

(i) Soil Erosion and Sediment Control

(a) Implementation of erosion and sediment control, (b) Revegetation of disturbed areas, (c) Construction of major controls (i.e. gabions, mattresses, shot-

creting etc), (d) Removal of sediment basins/fencing etc, (e) Internal sediment/pollution control devices, and (f) Final inspection.

(ii) Traffic Control

(a) Implementation of traffic control, (b) Maintenance of traffic control during works, and (c) Removal of traffic control.

(iii) Construction of Drainage Works (including inter-allotment)

(a) Pipes before backfilling, including trench excavation and bedding, (b) Sand backfilling, (c) Final pipe inspection, (d) Pit bases and headwall aprons, (e) Pit walls/wing walls/head walls, (f) Concrete pit tops, (g) Connection to existing system, (h) Tailout works, and (i) Final inspection.



(iv) Construction of Road Pavement

(a) Boxing out, (b) Subgrade roller test, (c) Subsoil drainage, (d) Sandstone roller test layer 1, (e) Sandstone roller test layer 2, (f) Kerb pre-laying, (g) Kerb during laying, including provision of roof water outlets, (h) Sandstone depth, (i) Pavement profiles, (j) DGB depths and roller tests, (k) Wearing course, (l) Kerb final, (m) Formwork concrete pavements, and (n) Final inspection.

(v) Provision of Street Furniture

(a) Street furniture (including street signs, guideposts, guardrail

etc), and (b) Erection of fencing adjoining public/drainage reserves.

(vi) Path Paving Works

(a) Path paving trimming and/or turfing (to ensure 4% fall), (b) Pathway construction (cycle/link pathways), (c) Path paving construction, (d) Service adjustments, and (e) Final inspection.

(vii) Construction of On-site Stormwater Detention System

(a) Steel and formwork for tank/HED control pit, (b) Completion of HED control pit, (c) Pit formwork, (d) Pipes upstream/downstream of HED control pit before backfilling,

and (e) Completion of OSD system.

(viii) Stormwater Quality Control

(a) Installation of stormwater quality control devices, and (b) Final inspection.



(ix) Final Inspections

(a) Preliminary overall final inspection, and (b) Overall final inspection.

Note

■ Additional inspections may be carried out as required.

■ These inspections are required for all Engineering works, including those approved by Subdivision Works Certificates (under EP&A Act 1979), Roads Act 1993 and Local Government Act 1993.

1.5.4 Table of Inspection Pre-requisites and Notices

The Applicant shall give the following notices to the relevant Council Engineer or Development Inspector during normal business hours or as previously agreed between the parties.

Pre-requisite work and prior notice for inspections, as listed in Table 1.1, must be complied with by the Applicant.



TABLE 1.1 TABLE OF INSPECTION PRE-REQUISITES AND NOTICES

INSPECTION

PRE-REQUISITE

PRIOR NOTICE DAYS BEFORE INSPECTION

Prior to commencement of Work

Erosion and Sediment Controls in place

7 working days

Traffic control to AS 1742- 3.2019

Prior to opening of roads 1 working day

Prior to backfilling of pipe trenches under roads

Pipes laid, jointed and sand backfilled

1 working day

Pavement Proof roller test Pavement placed, levelled and trimmed

1 working day

Prior to placing of fill Surface ready for filling, fill material inspected

1 working day

Pavement thickness Pavement course placed to finished level, kerbs in place

1 working day

Subgrade Proof roller test Conduits laid, subgrade placed, levelled, compacted

1 working day

Formwork for concrete structures (including On-site Detention and Stormwater Quality Control structures)

Prior to pour 1 working day

Placing of seal Road ready for sealing 2 working days Surface seal spray records Road surfaced Less than 7 days after

road sealed Moving of Survey peg Only if absolutely required for

works to proceed 1 working day

Road crossing Service in excavated trench bulkheads in place

1 working day

Preliminary Final Inspection All works practically complete survey pegs placed

7 working days

Final Inspection All works practically complete 7 working days Acceptance of Works All defects corrected at end of

Defects and Liability Period 7 working days

1.5.5 Preliminary Final Inspections

A preliminary final inspection will be arranged upon completion of the Works excluding deferred Works that are to be bonded. The Works shall be fully in compliance with the Documents.



Where applicable the following work shall be completed prior to the preliminary inspection:

(a) Work-as-Executed Plans as required by Sections 1.16 and 2.25 of Council's

Engineering Guide for Development. (b) All lots pegged. (c) Lot numbers painted by stencil on kerb. (d) Street signs erected in approved locations.

1.5.6 Final Inspection

A final inspection shall be arranged upon completion of any defects encountered in the preliminary inspection.

1.5.7 Acceptance of Works Inspection

An acceptance of works inspection can be requested of Council upon completion of all works, including rectification of all defects, at the end of the Defects Liability/Maintenance Period but will only be carried out if all Service Utility Authorities have completed their installations.

1.6 INSPECTION OF MATERIALS

1.6.1 Availability of Material Testing

The Applicant shall at the direction of Council submit any material or work for testing and shall "open up" and supply samples of any work which has been covered whether the work has or has not previously been approved by Council. All expenses incurred in providing such materials from the Works or in making good the Works after such removal shall be borne by the Applicant. Such directions must be complied with within 24 hours, or such time frame as may be agreed by Council. Where Council directs that materials be tested then such testing shall be done by a NATA registered laboratory, certified to undertake such testing and at the sole expense of the applicant.

1.6.2 Cost of Testing

The cost of all tests and certifications required by Council shall be borne by the Applicant.

1.6.3 Quality of Materials

All materials incorporated in the Works shall be new with the exception of approved recycled pavement materials and shall comply with the relevant AS or RMS standard as listed in Table 2. All materials shall be subject to inspection, testing and approval by Council, as set out in Table 2 of this Specification.



1.6.4 Representative Sampling

Samples furnished shall be representative of materials to be used. The Council may select samples or may require samples to be delivered to a Testing Facility nominated by Council, at no cost to Council. All samples shall be tested to the Standards laid down by the relevant Australian Standard or where no Australian Standard exists for the material, to standards as laid down by Council.



TABLE 1.2 SCHEDULE OF MATERIAL TESTS (Except where specifically overridden by the Documents)

MATERIAL TO BE TESTED

STANDARD (NOTES 3 & 4) TO BE COMPLIED WITH

PRIOR TO TYPE OF WORK

FORM OF TEST VERIFICATION

Compacted Subgrade AS 1289 AS 3798

Pavement Construction

Proof rolling, NATA Certificate and Plan.

Compacted Sub-Base AS 1289 AS 3798

Placing Base Course

NATA Certificate and Plan, Proof rolling (Note 1)

Compacted Base Course

AS 1289 AS 3798

Road Surfacing Proof rolling (Note 1) NATA Certificate and Plan.

Asphaltic Concrete Surfacing

AS 2891 Completion of asphalt works

NATA Certificate

Earth Fill AS 3798 AS 1289

Spreading topsoil

NATA Certificate and Plan.

Supply and ordering ready mixed concrete

AS 1379 Concrete Pour NATA Certificate

Concrete AS 1012 Completion of Part of Work

NATA Certificate

Reinforcing Bars and Wires

AS/NZS 4671 Concrete Pour Manufacturer’s certification

Interlocking concrete paving units

AS 1012 Completion NATA Certificate

Pre-cast reinforced concrete Box Culvert

AS 1597 Taking delivery

Manufacturer’s certification

Pipes As for relevant type of pipe

Taking delivery

Manufacturer’s certification

Concrete AS 3600 Concrete Pour Manufacturer’s certification

Crushed Rock and Recycled Concrete

RMS QA 3051+ RMS T114, T213, T215 and T221 T276 Council addendum to 3051

Taking delivery

NATA Certificate

Natural Gravel RMS, T106, T171, T114, T108, T109 and T215

Taking delivery

NATA Certificate

Note 1 Proof rolling with 3 point self propelled static roller, or other device approved by the Council Supervisor.

Note 2 Depending on Works some of these Tests and Certificates may not be required. Note 3 Must comply with the current version of these standards. Note 4 AS are available for viewing at standards.org.au



1.6.5 Inspection and Rejection of Materials

All compliance certificates shall be handed to Council’s supervisor no later than 48 hours after delivery of the material to the site. Any materials that fail to comply with the Documents shall be removed from the site within 24 hours of Council delivering a notice to do so. The failed material shall be replaced and re-tested for compliance with the Documents.

1.7 TOLERANCES

1.7.1 General

The work shall be carried out within the tolerance limits set out in Sections 1.7.1 to 1.7.9 inclusive.

1.7.2 Sub-Grade

The tolerance on the Reduced Level of the Sub-grade shall be as follows: minus, no limit plus 15mm.

1.7.3 Pavement

1.7.3.1 The tolerances on completed pavement thickness, measured at time of

preparation for bituminous surface treatment, shall be as follows:

Total thickness: Minus 5 mm; plus no limit Pavement thickness: Minus 5 mm; plus 5 mm Sub-Base: Minus 5 mm; plus 10 mm

1.7.3.2 Pavement thicknesses shall be checked by drilling or digging of holes by the

Applicant in the finished sub base at positions determined by Council. Holes shall be filled after measurement with damp material as specified for the surface course, well rammed to the satisfaction of Council. The cost of digging and repairing the test holes shall be borne by the Applicant.

1.7.3.3 Width of pavement (where not in contact with concrete gutter):

minus 75 mm, plus 150 mm



1.7.4 Bitumen Seal

The tolerances of the finished surface of pavement (neglecting the thickness of the final 25 mm layer of bituminous surface treatment) measured at the time of preparation for surface treatment shall be as follows:

Level

Finished level at any point: minus 10 mm, plus 10 mm Grading in any direction in: minus 10 mm, plus 10 mm 3m or less

Grading in any direction: minus 10mm, Per 3 metres: plus 10mm

Width of seal (where not in contact with concrete gutter): minus 75mm, plus 150mm

1.7.5 Finished Surface of Pavement (Asphaltic Concrete)

1.7.5.1 The tolerances on the finished surface level at any point of the various courses

shall be as follow:

Wearing Course: minus 5mm, plus 5mm

Grading in any direction in 3m or less: minus 5mm, plus 5mm

1.7.5.2 On vertical curves, similar standards shall apply with an allowance made for

the vertical curvature.

1.7.5.3 Widths

1.7.5.4 Edge of bitumen surface (where not in contact with concrete gutter): minus 50 mm, plus 50 mm

1.7.6 Kerbs, Gutters, Footway and Vehicle Crossings

1.7.6.1 Tolerances on the level of kerb, gutter and footway and vehicle crossings shall

be: plus 10 mm, minus 10 mm



1.7.6.2 In all cases, variations in level shall not be local and shall be over a length of 15 metres or more.

1.7.6.3 The tolerances on the horizontal shall be as follows:

Lateral position – 15 mm in 15 metres, provided that the variations are not local or unsightly.

Location of vehicle crossing: 150 mm

Dimensions of vehicle crossing: 25 mm

1.7.6.4 Cover to Reinforcement

Overall length: minus 15 mm, plus zero Cover: minus 5 mm, plus zero

1.7.7 Pipe Lines

The tolerances of the invert level of the pipe lines shall be as follows:-

Finished level of the invert at any point - minus 15 mm, plus 15 mm, provided that no point is level or at a higher level than a corresponding point upstream.

Grading - minus 0.2%, plus 0.2% at any point.

1.7.8 Pits and Headwalls

The tolerances for pits and headwalls shall be as follows:

Finished level of inverts, soffits and upper surfaces : minus 15 mm,

: plus 15 mm

Other dimensions : minus 25 mm, : plus 25 mm

Chainage of pit centre line : minus 150 mm of pits : plus 150 mm



Deflection of exposed edges : 10 mm

Cover to steel reinforcement : minus Zero : plus 5 mm

Longitudinal dimensions of steel reinforcement:

Length overall as bent : minus 15 mm, plus zero Other dimension : minus 15 mm, plus 25 mm Cover : minus 5 mm, plus

1.7.9 Open Earth Drains

The tolerances for open earth drains shall be:

Depth: minus zero, plus 50 mm

Width at all parts of cross-section: minus zero, plus 300 mm

1.7.10 Tolerances being Exceeded

In the event of the tolerances being exceeded, Council may at its absolute discretion, order the Applicant to carry out any reconstruction or remedial measures considered necessary or desirable.

1.7.11 Smooth Junctions

Smooth junctions will be made with all existing work.

1.8 SITE FACILITIES AND AMENITIES

1.8.1 All site amenities must be provided to comply with SafeWork requirements.

1.8.2 First Aid Equipment

An approved first aid kit shall be provided and maintained by the Applicant on site during the whole of the period when workers are on the site. The kit shall be kept in a location readily accessible and its location clearly marked with appropriate sin posting in accordance with SafeWork requirements.



1.9 ALIGNMENT AND SETTING OUT OF WORKS

The Applicant shall arrange for the setting out of the works by a Surveyor or Engineer.

The centrelines of all roads together with all lot pegs, easements and inter-allotment drainage lines, where appropriate, shall be marked and recovered by pegs or other marks as shown on the Documents.

The Applicant shall construct the works in strict conformity with the surveyed centreline and location approved, except where otherwise shown on the Documents or instructed in writing by Council.

If at any time during the progress of the work, any error is discovered in the position, level, dimensions or alignment, the Applicant shall immediately on discovery of the error notify Council and shall, unless Council otherwise directs, arrange for the error to be corrected by a Surveyor or Engineer.

1.10 CARE OF SURVEY MARKS

The Applicant shall preserve and maintain in their true position all State Survey Marks (SSM) and Permanent Marks (PM) whether or not the marks are to be used for the purpose of setting out, checking or measuring the work.

Should any SSM or PM be disturbed or obliterated, the Applicant shall immediately notify Council and shall, unless Council otherwise determines, arrange for a Surveyor to rectify such disturbance or obliteration. The cost of rectification shall be borne by the Applicant.

1.11 SERVICE CONDUITS

All conduit trenches shall be at a grade of not less than (1) one percent in the direction nominated by the Relevant Service Authority.

Conduits under roads shall be laid prior to the construction of the final base course layer, unless otherwise approved by Council, and drained in accordance with requirements of the relevant Authority.

Backfill material under road pavements shall comply with the requirements of pipe bedding for stormwater drainage. Backfilling and compaction shall generally comply with the relevant requirements of Specification for Stormwater Drainage.



The position of conduits shall be marked by moulding either "W" (water) painted blue, "T" (Telecommunications) painted white or "E" (electricity) painted orange into the kerb face. Where no kerbs are laid directly over the end of each conduit, a 50 mm x 25 mm timber indicator painted white with the upper 75 mm painted red, 375 mm long and set 300 mm into the ground 600 mm from the street alignment shall be placed within the property and on the line of the conduit.

1.11.1 Electricity Conduits

Electricity service conduits shall be excavated for, supplied unless otherwise specified, bedded, laid, jointed and backfilled in locations directed by Integral Energy and to that Authority's requirements.

The ends of the conduits shall be plugged or suitably sealed to preclude entry of soil and shall be connected with approved fittings.

The Applicant shall arrange for all conduits to be inspected and approved by Integral Energy or their Agent.

Note: Integral Energy requires certification by a Surveyor or Engineer.

Crossings may comprise single, multiple or multiple layered conduits.

Kerb faces shall be permanently marked at conduit crossings directly above the conduit to the requirements of Integral Energy and by a peg at the end of a conduit run where kerbing has not been constructed. Marking shall be to the requirements of Integral Energy.

1.11.2 Water Service Conduits

The Applicant shall supply, excavate for, lay, joint and backfill water service conduits in carriageways and pathways in accordance with Sydney Water regulations and requirements as applicable.

The location of the conduits shall be marked by cutting the letter "W" 75 mm in height in the concrete kerb face or concrete edge at each end of the conduit.

The installation shall be carried out by a person suitably qualified and accredited by the Sydney Water.



1.11.3 Telecommunications Conduits

The Applicant shall liaise direct with Telecommunications to ensure that the necessary conduits are installed by Telecommunications in conjunction with Integral Energy. Kerb faces shall be permanently marked at crossings directly above the conduit to the requirements of Telecommunications.

The installation shall be carried out by a person suitably qualified and accredited by Telstra.

1.11.4 Gas Services

The Applicant shall make arrangements for the laying of conduits with the Natural Gas Company.

The installation shall be carried out by a person suitably qualified and accredited by the Australian Gas Light.

1.11.5 Restoration of Trenches

Upon completion of trench excavation for the installation of services and laying of ducts all surplus material shall be removed from the site of work.

All footways shall be returned to the standard crossfall and any vegetation replaced. Any concrete kerbs, paths or segmented paving damaged by the works shall be reconstructed to Council's satisfaction.

Note:

Due care must be taken to ensure that appropriate erosion controls are installed and maintained during any excavation and backfilling works when ducting and/or installation of services is carried out.

1.12 ENVIRONMENT

The Applicant shall ensure at all times that the requirements of all the relevant Acts concerning noise, air, water, dust, and other pollutants are fully observed.

Trucks carting material to or from the site are to have their loads covered to prevent spillage.

In regard to dust nuisance, the Applicant shall regularly water all haul roads, access tracks and construction areas.



Council may direct that work cease until such time as any particular dust nuisance has been controlled. All costs associated with control of dust shall be borne by the Applicant.

1.13 REINSTATEMENT OF DAMAGED INFRASTRUCTURE

Prior to final inspection by Council, all surplus material and rubbish shall be removed and the whole of the site left clean and neat in appearance. Any road pavement, footway or kerb and gutter disturbed or damaged during construction shall be reinstated in accordance with Council's Restoration Policy to the satisfaction of Council's Engineer. Similarly, the whole work shall be left in a neat and tidy condition at the end of the Liability Period.

1.14 CLEANING AND REINSTATEMENT OF EXTERNAL AREAS

The Applicant shall ensure that deleterious material deposited as a result of the works is removed from external roads, footpaths and public areas. Any damage to external areas of the site as a result of the works shall be reinstated by the Applicant as directed by Council.

1.15 CARRYING OUT WORK IN PUBLIC ROADS OR FOOTWAYS

Most developments require a drainage connection to a Council gutter or stormwater pipe located in an adjoining public road. In some cases, full half width road construction may be required for the full frontage of the site. Consequently, most development involves the carrying out of excavation or other work within the footway or carriageway of a public road (road reserve).

Work must not be carried out in a public road unless consent has been granted by the Council (or other relevant roads authority such as the RMS) under the Roads Act 1993. A person wishing to undertake such work must:

1.15.1 Obtain a Road Opening Permit from the Roads Authority, usually Council,

for routine works such as connection to a kerb and gutter across a nature strip for a single domestic drainage connection; or

1.15.2 Make special application to Council to obtain stamped approved plans issued

by Council under the Roads Act 1993 for more involved works such as extension to or creation of new piped street drainage systems, or half width road construction.

Note 1: Accredited certifiers do not have authority to grant consent under

the Roads Act 1993. Note 2: Approval for carrying out works in a public road or footway is

granted separately to development consent or a complying development certificate.

Note 3: The conditions of consent imposed on a DA approval will generally specify what form of approval is required.


ENGSPEC Revision 1 - February 2005 2 -

2 TRAFFIC CONTROL FOR WORKS IN PUBLIC ROADS

2.1 DESCRIPTION

A "Traffic Control Plan" must be prepared by a suitably qualified RMS accredited work site traffic designer for all works that are carried out in or adjacent to a public road. This Plan must satisfy all the requirements of AS 1742.3 2019.

It is the sole responsibility of the Applicant to have in place and maintain traffic facilities, i.e. barricades, signs, lights, etc, at all times, day and night, seven (7) days a week for the duration of the works in accordance with the Plan.

These traffic facilities must be installed and maintained by appropriately qualified RMS accredited work site traffic controllers.

All and any responsibility will rest with the Applicant who shall absolve Council and its Employees from any suit of law which may result from the failure of the Applicant to comply with the above requirements.

If it comes to the attention of Council that Traffic Control Devices are insufficient or inoperational (particularly in an after-hours situation), then Council may arrange to reinstate the Traffic Control Devices and recoup the costs from the Applicant.

Any changes to the approved Traffic Control Plan must be approved by Council before implementation.

2.2 ROAD OCCUPANCY LICENCE

The applicant shall ensure that a Traffic Control Plan is submitted to Council for approval at least 10 working days before any works are undertaken on any existing public assets owned, maintained or controlled by Council. No works shall be commenced until such Traffic Control Plan has been approved by a Council officer authorised to approve such plans for implementation. In addition, no work shall commence on any Council assets until such time as the appropriate occupancy permission has been obtained and the appropriate fees and charges pertinent to such occupancy paid.



3 EROSION AND SEDIMENT CONTROL

3.1 DESCRIPTION

This specification provides for measures for the erosion and sediment control that shall be undertaken during construction.

The Applicant shall provide and maintain controls where shown on the Drawings or where directed by Council. Such controls shall be in accordance with this Specification.

Erosion and sediment control designs shall address the requirements of Council's Engineering Guide for Development, this Specification and relevant requirements and recommendations of the NSW Department of Planning, Industry and Environment (DPIE). For works and control measures not covered by this Section, the Applicant may follow DPIE’s "Managing Urban Stormwater - Urban Design" guidelines, or "Managing Urban Stormwater - Soil and Construction - Volume 1" 4th Edition produced by Landcom (2004).

3.2 GENERAL

Perimeter control measures shall be placed prior to or in conjunction with the first phase of earthworks. Construction shall be phased if directed by Council so that land disturbance is confined to areas of workable size. This limits the duration for which disturbed areas are exposed to erosion. Stabilisation measures shall be applied on the first disturbed section before the next section is opened up if possible.

Topsoil stockpiles shall be located outside hazard areas such as drainage depressions.

Where site regrading or filling is to be undertaken, surface water shall be directed away from the face of batters and stock piles.

All areas not subject to construction works shall be retained free from disturbance or damage during the currency of the Works. Should these areas become disturbed or damaged they shall be reinstated by the Applicant.

3.3 SEDIMENT AND EROSION CONTROL DEVICES

Where shown on the Documents or otherwise specified, sediment and erosion control devices shall be constructed and maintained. Unless the device is a permanent structure, it shall be removed when the areas upstream of it have been stabilised. The control devices shall be constructed in the locations shown on the Drawings unless an alternative location is directed by Council.



Standard drawings of sediment and erosion control devices may be found in Section 15 of this Specification.

3.3.1 Temporary Construction Exit

The temporary construction exit shall be provided to shake off site material from exiting vehicles and shall consist of a pad of coarse crushed rock, (75 mm to 150 mm range) having a minimum depth of 200 mm, a minimum length of 25 m and a width as nominated on the Documents or be of precast or prefabricated steel "cattle grid" type. See also Standard Drawing A(BS)115.

3.3.2 Diversion Channels/Banks

Diversion channels are earth channels with a minor ridge on their lower side constructed across the slope. The channel shall have side slopes not steeper than 1 in 3.

Where flows are too large to be contained by a simple channel, a diversion bank shall be constructed below the channel. The bank shall have a compacted height of at least 500 mm with batter slopes no greater than 1 in 2 and a top width of 600 mm. The channel behind the bank shall fall to the outlet point.

Diversions shall be stabilised by the method nominated on the Documents or otherwise specified and shall be located where directed by Council so that runoff will discharge onto stable disposal areas without causing erosion.

3.3.3 Level Spreader

Level spreaders shall be used as outlets for diversion channels or at other areas of concentrated flow of runoff where conversion to sheet flow onto stable areas is required. The level spreader shall be excavated at zero grade, the length shall be as shown on the Documents or otherwise specified. The approach grade of the diversion channel shall not exceed 1 per cent for at least 6 metres before it enters the spreader. Particular attention shall be paid to the sill to ensure that it remains stable and a vigorous vegetative cover is maintained below it. The channel behind the sill shall be de-silted on a regular basis and no traffic shall be allowed to use this area.

3.3.4 Straw Bale Barrier

Straw bale barriers shall consist of wire bound bales laid lengthwise in an excavated trench nominally 100 mm deep. Each bale shall be securely anchored by two stakes or star pickets skewer driven through its centre into the ground such that the top of the stake or star picket is level with the top of the bale.



The barrier shall be constructed on that part of the perimeter of the site or at other locations within the site where shown on the Document or where directed by Council.

3.3.5 Filter Bank

The filter bank, which is an auxiliary structure shall be installed in conjunction with and as part of a diversion bank or other structure designed to temporarily pond sediment-laden surface runoff.

The outlet shall be constructed in accordance with the details shown on the Documents. Aggregate shall be in the 50 to 75 mm size range. The crest of the outlet shall be a minimum of 150 mm lower than the top of the associated earth bank and may be either level or slightly concave. The gravel outlet shall otherwise have a similar cross-section to that of the adjacent earth bank. The length shall be as shown on the Documents or as otherwise specified.

3.3.6 Sediment Traps

Temporary de-silting structures shall be constructed at inlets to stormwater systems to trap sediment runoff. They shall consist of the following types:-

3.3.6.1 Surface Inlet

The surface inlet pit shall be completed to throat level and then topped off with one or more courses of standard masonry construction blocks, nominal 150 mm thickness, laid on side in accordance with the detail shown on the Documents. Aggregate in the 50 to 75 mm size range shall be placed around the outside of the blocks.

3.3.6.2 Kerb Inlet

Kerb inlet traps shall be provided to pits in areas of high erosion susceptibility and shall be constructed by modifying the kerb inlet to allow sediment filtration. A roll of wire netting of a nominal 150 mm diameter filled with aggregate in the 50 to 75 mm size range shall be placed across the pit entry in accordance with the detail shown on the Documents. The netting shall be lapped approximately 150 mm and wired together. At both ends a concrete spacer block laid on side shall be placed normal to the kerb.



3.3.6.3 Culverts

Existing road embankments with culverts beneath shall be converted to temporary sediment traps by building around the entrance to the culvert a box of unmortared standard masonry construction blocks nominal 150 mm thickness, placed on side in accordance with the detail shown on the Documents. A filter of gravel or coarse aggregate (50 to 75 mm size range) shall be placed against the modified inlet. The filter material shall batter at 3 to 1 from the top of the blockwork. The width and height of the blockwork shall be as specified in the Documents.

3.3.7 Filter Dams

Filter dams built of pervious materials such as straw bales, washed aggregate, gabions, or sandbags filled with aggregate shall be placed across minor drainage channels while ground cover is being established, to steady flow velocity and to trap sediment. In grassed channels they shall be embedded at least 100 mm in the soil to prevent water tunnelling beneath them.

Aggregate filled sandbags shall be stacked in an interlocking fashion.

The dam shall be checked after each storm for structural damage or clogging by silt and other debris and the Applicant shall make prompt repairs or replacements to the satisfaction of Council.

3.3.8 Sediment Basins

Sediment basins, where specified, shall be constructed to the details shown on the Documents. The basin shall be constructed as the first phase of the earthworks operation. Basins shall be sized in accordance with Landcom's "Managing Urban Stormwater - Soil and Construction - Volume 1" - 4th Edition (2004)

3.4 MAINTENANCE

All sediment and erosion control devices shall be maintained in a satisfactory working order throughout the Maintenance Period or until such earlier time as the area upstream has been stabilised and Council directs that the device be removed.

The devices shall be inspected after each storm for structural damage or clogging by silt and other debris and prompt repairs or replacement shall be made by the Applicant.



All sediment deposited within ponded areas shall be periodically removed to a disposal area as directed by Council.

Filter materials shall be cleaned and restacked or replaced when directed by Council to maintain effective performance.

In the case of the temporary construction exit, the contractor shall undertake periodical surface cleaning by drag broom or equivalent, to remove all build up of foreign material.

To control bank growth and to maintain healthy ground cover in channels and on banks, mowing shall be undertaken at regular intervals when directed by Council.

3.5 STABILISATION OF DISTURBED AREAS

Stabilisation of disturbed areas shall be carried out in accordance with the Specification for Grassing (see Section 13).

Where practical the following principles shall be applied for the control of erosion and sedimentation:-

3.5.1 Stabilisation of denuded areas shall commence within fourteen (14) days of

the works being completed.

3.5.2 Stabilisation of the area over all stormwater drainage lines and sewer mains not within road reservations shall commence within fourteen (14) days of backfilling.

3.5.3 All temporary earth diversion channels/banks and sediment basin

embankments shall be seeded within fourteen (14) days of completion of their earthworks.

3.5.4 Stabilisation of all cut and fill slopes shall be commenced immediately of

completion of formation.

3.6 DUST CONTROL

All reasonable steps shall be taken by the Applicant to limit the creation of any dust nuisance which might arise during the execution of the works. In this regard all haul roads, access tracks and construction areas shall be regularly watered.

Council may direct that work cease until such time as any particular dust nuisance has been controlled. All costs associated with control of dust shall be borne by the Applicant.



3.7 DIVERTING WATER AND DE-WATERING

All necessary action shall be taken by the Applicant to prevent any surface and/or sub-soil water from interfering with the progress of the works. The work area shall be kept free from such water. All reasonable measures shall be taken to prevent any damage to the works by water due to flood, seepage or other causes.

Any work or material damaged by water from any source shall be removed, replaced with fresh material and reconstructed by the Applicant.

Provision shall be made for the temporary drainage of any road boxing excavation or pavements in the event of rain. The Applicant shall ensure that this temporary drainage does not cause erosion or siltation of any existing drainage works.

Appropriate arrangements must be made to provide anti-siltation measurements to prevent any deleterious matters entering the stormwater system.

3.8 TURFING/GRASSING AT COMPLETION OF CIVIL WORKS

At the completion of Civil Engineering works all land disturbed by earthworks must be revegetated. The following are minimum requirements:

3.8.1 Subdivision Roads and Footways

Provision of a turf strip minimum 300 mm wide immediately behind, and for the full length of, all kerb constructed in the subdivision.

3.8.2 Footways Adjacent to Other Developments

Footways adjacent to developments in existing areas, or where required by the DC, shall be fully turfed.

3.8.3 Subdivision Lots

Lots in subdivisions which will be sold individually for dwelling construction must also be surface stabilised against erosion. In this regard, disturbed areas must be sown/hydromulched, as per Section 3.5 and Section 13 of this Specification.

Final acceptance of the subdivision/development "civil works" will be dependant on satisfactory prevention measures being established on site and being maintained during the Defects Liability/Maintenance Period.



4 SITE CLEARING AND/OR GRUBBING

4.1 DESCRIPTION

This Specification provides for the clearing and grubbing and removal of prescribed materials from part of the area of the site shown on the documents.

4.2 NOTICE OF COMMENCEMENT

The Applicant shall give seven (7) working days written clear notice of the intention to commence clearing operation. No work shall be commenced within that period, unless approval to do so has been given by Council. (See Section 1.3.1.2 of the General Specification of Works).

4.3 CLEARING AND GRUBBING

For the full area of the road reserve, drainage easements or where otherwise shown on the documents, all materials such as fences, concrete and/or brick foundations and/or floors, structures of all descriptions, trees, shrubs, scrub, stumps, logs, boulders and roots except those fences, structures, trees, shrubs and/or items which Council may direct to be retained shall be cleared and/or wholly grubbed. All lying and fallen timber, rubbish and debris of every description shall be disposed of off site, in accordance with Section 1.4.5.

4.4 TREES TO BE RETAINED

Council's Tree Preservation Order, City Environment Plan or any Interim Development Order must be complied with.

No growing trees and/or shrubs shall be destroyed or damaged other than those specified or directed to be removed. Council shall mark or otherwise indicate to the Applicant those trees and/or shrubs that shall be removed and the Applicant shall take particular care during the operations of clearing not to remove and/or damage any other trees and/or shrubs that shall remain.

All trees that shall be retained shall be adequately protected at all times and particular care shall be taken to avoid any damage to the roots, trunks and branches. These trees shall be marked by Council prior to any works being commenced.

4.4.1 Roots

Before any excavation is carried out near the roots of trees and/or shrubs to be retained, the Applicant shall obtain a direction from Council as to whether the levels in the vicinity of the tree can be adjusted to protect the roots.



When any excavation is required in the vicinity of trees to be retained, hand excavation first shall be used to locate the roots. Roots which are then seen to be affected by the line of the proposed work shall be cleanly severed, clear of the work, before machine excavation commences.

4.4.2 Trunks

Certain trees to be retained may have to be protected. This protection shall be provided by lashing pine or other suitable off-cuts upright around the trunks leaving gaps of no more than 150 mm. The off-cuts shall be 1.5 metres high and shall extend down to ground level so as to protect the boles. The flat side of the off-cuts shall face outwards and if necessary shall be painted white.

4.4.3 Damage to Trunks

Where the trunks of trees are damaged by plant and/or equipment, Council may direct the Applicant to effectively cover the damaged portion of the trunk with approved tree paint. Alternatively Council may require advanced replacement trees to be provided. Council's Tree Preservation Order shall be strictly observed.

4.5 REMOVAL OF TREES LEFT IN FILLED AREAS

The Council reserves the right to direct the Applicant to clear, grub and remove any tree and/or shrub left living and standing in any area filled in the site preparation works if Council is of the opinion that such tree and/or shrub is dead or dying.

4.6 DISPOSAL OF MATERIAL

All material cleared and/or grubbed in accordance with this Specification shall become the property of the Applicant, who shall adhere to the provisions of the Protection of the Environment Operations Act 1997.

4.7 RESTORATION OF SITE

All holes or depressions caused by the clearing and/or grubbing work shall be backfilled with approved material and the area compacted to the satisfaction of Council. Prior to being backfilled the holes or depressions shall be inspected by Council.

4.8 PRIVATE PROPERTY

Every precaution shall be taken to prevent timber or other materials falling on and/or being deposited on private property, and the Applicant shall remove, at their cost, any timber or other materials so fallen and/or deposited.



4.9 DAMAGE

All damage of any kind, including damage to fencing and private property caused by the execution of the work shall be made good by the Applicant at their expense, and to the satisfaction of Council.



5 EARTHWORKS AND FORMATION

5.1 DESCRIPTION

This Specification provides for the formation by cut and/or fill of the earthworks for the construction of roads, pathways, miscellaneous works and concrete structures.

5.2 REMOVAL OF TOPSOIL

Topsoil shall be stripped from within the formation areas of roads, driveways, parking areas, pathways, miscellaneous pavements and other works inclusive of batters and shall be placed in stockpiles shown in the Documents and/or in locations approved by Council for future top dressing of formed footways, berms, batters and site regrading areas.

The thickness of the topsoil stripping shall be as specified on the Documents. Where not specified the thickness of topsoil stripping shall be not less than 100 mm.

All topsoil stockpiles shall be maintained in a neat and tidy condition during the execution of formation of earthworks and until replacement of topsoil is carried out. Care shall be taken to avoid contamination by any other matter. See also Section 3 of this Specification, Erosion and Sediment Control.

Replacement of topsoil shall be in accordance with the provisions of Section 5.14.

5.3 REMOVAL OF UNSUITABLE MATERIALS

Following the stripping of topsoil as specified in Section 5.2 and before excavation, filling or other works are commenced, all exposed deleterious materials which, in the opinion of Council, are unsuitable for the placing of filling shall be removed and disposed of.

If in the opinion of Council unsound or unsuitable material is encountered at the specified excavation level or embankment base in other than minor pockets, additional excavation and replacement with compacted approved material may be ordered. All unsound or unsuitable material excavated in accordance with the provisions of this paragraph shall be disposed of by the Applicant, to the satisfaction of Council.

If the material below ground surface level on subgrade/foundation is too wet to compact, the material shall be tyned, drained or otherwise allowed to dry sufficiently to permit the specified compaction to be achieved in accordance with Sections 5.4, 5.9 and 5.11.



5.4 COMPACTION PRIOR TO PLACING OF FILL IN AREAS OTHER THAN ROADS AND FOOTPATHS

On areas to be site regraded by filling, and after removal of the materials as described in Sections 5.2 and 5.3 and before any filling material is placed, the stripped surface shall be compacted for a depth of 200 mm to a density not less than 95% of its standard maximum dry density. Such stripped areas shall be tested and certified by a registered NATA laboratory and results confirming conformance provided to Council prior to placement of fill.

5.5 EXCAVATION

Excavation shall be carried out to the depths and dimensions shown or implied on the Documents, or to such greater depths and dimensions, as will ensure sound, permanent foundations. All excavation shall be approved by Council before any materials or structures are placed thereon.

Any over excavation shall be made good with granular or other approved filling placed in layers not exceeding 250 mm thickness, loose measurement, and compacted to 95% of the standard maximum dry density in accordance with the relevant Australian Standard.

Excavated material, if deemed suitable by Council, may be used in the formation of embankments and for site filling.

No excavation shall be commenced until, in the opinion of Council, the necessary plant is on the site to ensure uninterrupted progress and continuance of the cut to fill operation.

In carrying out excavation work, all reasonable precautions against mishap or accident, whether arising from insufficient strength of timberings, bad workmanship, breakage of machinery or plant, inefficient caulking or packing of open joints or spaces, flood, or any other cause whatsoever shall be taken, and the Applicant shall be held solely responsible for all damage, injury, or loss that may occur to buildings, structures, bridges, railways, roadways, streets and other surfaces above and adjacent to the excavations, to all persons whether employed by the Applicant, by Council or otherwise, and to his own and other works, and the cost of all such damage, injury and loss and any compensation shall be met by the Applicant.

5.6 SURPLUS SPOIL

Surplus spoil shall be disposed of as specified in Section 4.6 of this Specification.

5.7 IMPORTED FILLING

All imported fill material shall be virgin excavated natural material (VENM) free from chemical or other contamination. A contamination report on the proposed imported fill material, from a NATA registered laboratory, shall be provided to Council prior to placement of fill.



5.8 EMBANKMENTS

Placing of filling on the prepared areas shall not commence until approval has been obtained from Council.

Embankments shall be constructed from approved sound material in accordance with Sections 5.5 and 5.7 of this specification and shall be placed in horizontal layers extending across the full width of the embankment of not greater than 250 mm in thickness, loose measurement, and each layer shall be compacted in accordance with the provisions of Section 5.11.

Where the cross slope of the natural surface is steeper than 1:3, (that is one vertical in three horizontal), the base of the entire embankment shall be suitably stepped, scarified or roughened before construction of the embankment is commenced. Natural ground adjoining an existing embankment together with the existing batter shall be similarly treated before the embankment is widened.

5.9 PLACEMENT AND COMPACTION OF FILL

Placement of filling on the prepared areas shall not commence until approval has been obtained from Council.

Filling shall be carried out in horizontal layers, extending the full width of the fill areas in not more than 250 mm thick loose measurement layers.

The dry density of fill shall satisfy the following requirements:

AS1289 - 5.6.1 Sands -Density index more than 70% where compaction test is in

accordance with the relevant Australian Standard.

AS1289 - 5.4.1 Material other than sand - A minimum dry density ratio of 95% where the compaction test is in accordance with the relevant Australian Standard.

The co-ordination of Geotechnical Testing - the placement, supervision, inspection and frequency of testing - shall be carried out in accordance with AS 3798 Appendix B Level 2 Testing (as a minimum standard).

All filled areas shall be certified as complying with the requirements of this provision by a N.A.T.A. registered Geotechnical Laboratory and the testing of such areas shall be carried out in accordance with the relevant AS provisions.

Where depth of fill is > 250 mm, compaction certificates certifying that the relevant density ratio has been achieved must be submitted to Council upon completion of works.



The moisture content of each layer shall be maintained near optimum during compaction. Where it is necessary to increase the moisture content, each layer shall be watered by means of an approved sprayer delivering a uniform distribution of water over the area to be wetted. Adequate watering equipment shall be available during all compaction operations.

5.10 BOXING OUT

The formation of roads, accessways, parking areas, pathways and miscellaneous pavements shall be boxed out for the construction of the pavement as shown on the Documents.

The boxing shall extend 150 mm behind the back of kerbs, and vehicular crossings, edges of shoulders or edges for concrete pavements, etc.

Boxing in excavations shall be formed by removal of material from the solid. Boxing in embankments may be formed by building up and compacting by rolling the footway or shoulder area and then trimming the inside edges vertically to correct line.

Provision for temporary drainage and diversion of stormwater, where water may tend to accumulate, shall be made by the Applicant. Care shall be taken to guard against scour on any part of the construction. All temporary provisions for drainage, unless otherwise directed to be retained for use as catch or shoulder drains, shall be restored to the satisfaction of Council before pavement materials are placed.

5.11 TRIMMING AND COMPACTION OF EARTHWORKS AND SUBGRADES

The earthworks and subgrades shall be thoroughly compacted by rolling as close as practical to optimum moisture content to achieve the specified compaction density. All soft or unstable patches that may develop during the compaction operation shall be removed, filled with approved sound material and blended into the surrounding material, moistened and rolled until thoroughly compacted.

Where rock is encountered at sub grade level, it shall be suitably treated to the satisfaction of Council.

Compaction of subgrades shall continue until a dry density has been achieved of not less than 100% of the standard maximum dry density when tested in accordance with Australian Standard AS1289 Tests E.1.1 or E.1.2.

The co-ordination of Geotechnical Testing - the placement, supervision, inspection and frequency of testing, shall be carried out in accordance with AS 3798.

A three (3) wheeled, self propelled roller or other approved device acceptable to Council, shall be made available to carry out proof rolling those sections of subgrade prepared to be proof loaded. Unless otherwise acceptable to Council the roller shall have rear rollers of at least 1200mm in diameter and an intensity of loading of at least 7000 kg per metre width of roller.



After compaction, the subgrade profile shall be prepared parallel to the finished surface at the specified depth below the detailed cross sectional and grade lines and over the required widths. The subgrade profile shall be checked by Council. Any irregularities found shall be adjusted by addition or removal of material followed by further trimming and rolling to achieve the specified profile, shape and compaction.

All footpaths shall be excavated to a depth of 75 mm below designed level then made good with approved topsoil which shall be compacted and trimmed to provide a suitable crossfall falling towards the kerb and gutter.

5.12 BATTERS

Unless otherwise specified or directed by Council the sides of cuttings and embankments, shall be trimmed to a maximum slope of 1 vertical to 5 horizontal.

Where steeper batters have been approved by Council on design drawings, access ramps at a maximum slope of 1 vertical to 5 horizontal, shall be provided opposite each kerb layback.

5.13 SITE REGRADING

Site regrading work shall be carried out as shown on the Documents by cut and/or fill operations and/or by utilisation of surplus approved spoil material from site works. Where insufficient material is available for filling purposes approved imported material shall be used to complete the site regrading work in accordance with Section 5.7.

The areas specified to be regraded shall be finished to the levels, with allowances for topsoil replacement, and/or grades, shown on the Documents without abrupt changes of slope and/or depressions, which may hold surface waters. The regraded surface, after the specified compaction, shall present a true surface, free from rocks, clods and rubbish of any description.

All areas, not subject to construction works, shall be retained free from disturbance or damage during the currency of the works. Should these areas become disturbed or damaged they shall be reinstated by the Applicant to the satisfaction of Council.

Site regrading for residential allotments shall comply with the current version of AS 3798.

5.14 REPLACEMENT OF TOPSOIL

The Applicant shall not commence placing of topsoil on the prepared areas until advised by Council.

The stockpiled and/or imported topsoil shall be spread to the specified depth, or where no depth is specified to a minimum depth of 100 mm.



The topsoiled area shall then be compacted with a light roller and trimmed so that the finished surface conforms to the design levels and grades.

Topsoiled areas, when finished, shall present smooth surfaces free of stones and lumps of soil and blend into adjoining undisturbed ground.

All areas where vegetation has been removed shall be suitably grassed by means approved by Council. A dense grass cover must be established upon completion of the earthworks and be maintained during the Defects and Liability period.

Imported topsoil shall be free of stones, sticks, rubbish and other deleterious material and shall not have more than 3% of the material retained on the 2.36 mm sieve and shall be free from chemical or other contamination. A contamination report shall, if required by Council, be provided by the applicant from a NATA registered laboratory at no cost to Council.

5.15 PROGRESS INSPECTIONS

Construction of the pavement shall not be commenced on the formation until approval has been obtained from Council. Where pavement has been constructed or commenced in contravention of this Section, the Applicant, when ordered by Council, shall remove the pavement so commenced or constructed.

5.16 ENTRANCE TO SIDE ROADS AND ADJACENT PROPERTY

Should any alteration to levels be made opposite entrances to side roads or opposite vehicular entrances to adjacent property, arrangements to restore access shall be made in accordance with the provisions of Section 1.4.4 of the General Specification of Works.



6 STORMWATER DRAINAGE

6.1 DESCRIPTION

This Specification provides for the excavation and backfilling of trenches and the supply, bedding, laying and jointing of stormwater pipelines, precast reinforced concrete box culverts and headwalls.

Where indicated in the Document culverts and pipelines shall be constructed complete with connections, if required, to the required headwalls and/or pits.

6.2 DRAINAGE LINE LOCATION

The location of each drainage line shall be determined from the details in the Document, standard drainage structure drawings, longitudinal profiles of drainage lines and ancillary special drawings. The placing of survey marks, showing the location of drainage easements, shall be arranged by a Surveyor or Engineer.

Drainage lines shall be constructed so that their centreline coincides with the centreline of the respective internal wall of the drainage structure or as detailed in the documents.

Drainage lines within proposed drainage easements shall be located centrally and no portion of a pipe, culvert or drainage structure shall be constructed outside the easement boundaries.

Should trees exist along the proposed drainage line, or so close to the trench that damage to trees would be unavoidable, direction shall be sought from Council prior to excavation commencing.

6.3 TYPES OF PIPES AND BOX CULVERTS

Pipes and box culverts shall not be placed in position in the work until passed by Council either with, or without testing, at Council's discretion. The fact that pipes are passed by Council shall in no way limit their subsequent rejection by Council in the event that they do not conform to the Specification.

All pipes delivered to the site shall carry the manufacturer’s distinguishing mark, nominal size and class of pipe. For all reinforced concrete items, date of manufacture shall also be indicated.

All pipes/culverts shall be transported, stacked, handled and protected in accordance with the manufacturer’s recommendations.



6.3.1 Steel/Reinforced Concrete Pipes Council does not permit the use of Fibre Reinforced Concrete (FRC) pipes in any stormwater system that is to become a Council asset. Rubber ring jointed (RRJ) pipes shall be used for construction of all pipelines up to and including 1800mm diameter (See Council's Engineering Guide for Development). Pipes and specials such as bends and off-takes shall conform to AS 4058-2007, AS 41598- 2003 and AS 3725- 2007 as applicable. Council reserves the right at any time to call for any or all of the specified tests, viz. Load, Hydrostatic or Absorption, to be carried out on each size of consignment of pipes prior to the pipes being used in the work.

6.3.2 Vitrified Clay Pipes

Unless otherwise specified, all pipes shall be stormwater class, rubber ring joint. They are permitted for inter-allotment drainage and private property drainage only.

All fittings shall be first quality conforming to the requirements of AS 1741-1991 Vitrified Clay Pipes.

6.3.3 uPVC Pipes and Polypropylene Pipes

The use of uPVC pipe, Class SH and polypropylene pipes both with a nominal diameter of between 100 mm and 300 mm is permitted for inter-allotment drainage and private property drainage only. Pipes and fittings shall conform to the requirements of AS 1260-2002, "Unplasticised PVC (uPVC) Pipes and Fittings for Sewerage Applications" and shall be rubber ring jointed.

UPVC pipes must always be protected from direct sunlight by stacking in the shade or under cover, to Manufacturer's Requirements.

6.3.4 Precast Reinforced Concrete Box Culverts Precast Box Culverts shall conform to the requirements of Section 7.15 as well as load tests and water absorption tests to AS 4058- 2007. If required by Council the Applicant shall provide documentary evidence that the intended box culverts comply with all aspects of AS 1597.1/2. 6.3.5 Precast Concrete Headwalls Precast Concrete Headwalls may only be used for tailout headwalls for small pipes up to 300 mm diameter, in low embankments. They may also be used for temporary headwalls, where approved by Council.



6.4 EXCAVATION

Excavation shall be carried out in accordance with the provisions of Section 5.5 of the Specification.

The Applicant shall take all precautions against accident, damage to the works or other works and properties and injury or loss arising from any cause whatsoever to persons employed by him.

Should drainage trenches be excavated to depths greater than that necessary, the excess excavation shall be made good, to the correct level, with approved bedding material and compacted to 95% standard max dry density.

Trenches shall be excavated to a sufficient width so that a minimum space of 150 mm is created between the side of the trench and the outside of the pipe. Where necessary to allow the proper handling, jointing and placing of all types of pipes specified, additional excavation may be required.

Trenches shall be excavated over their full width to the specified depth to allow a minimum of 75 mm bedding below the pipe for all classes of material. All loose material shall be removed from the bottoms of trenches prior to the placing of approved non-cohesive granular bedding material.

The bottoms of trenches or excavations in all soil types shall be compacted prior to the placing of any bedding or concrete materials. Should, in the opinion of Council, the foundation material be incapable of effective compaction, the material shall be removed to a depth of at least 200 mm below the underside of the collar of the pipe and replaced with approved material.

In wet or unstable ground conditions, where the trench bottom requires further stabilising, additional approved bedding material in conjunction with an approved filter fabric shall be placed below the standard bedding as directed by Council.

6.4.1 Shoring and Battering

Subject to any Act of Parliament, Ordinance or Regulation, the Applicant shall satisfy himself as to the necessity of shoring excavations and shall accept the sole responsibility as to its being required and to its use in the works.

The execution of any additional excavation by benching or battering to offset the necessity of shoring may be approved on written request to Council.



6.4.2 Laying in Filled Ground

Where pipes are required to be placed in filled ground, or where the top of the pipe would be less than 400 mm below the natural surface, filling shall first be placed and thoroughly compacted, the trench being excavated in the normal manner to the required levels, and after laying and jointing of pipes, the line shall be backfilled in accordance with the requirements of Section 6.17 of this Specification.

The excavations shall be kept free of water at all times. Sumps formed for the purpose of dewatering shall be kept outside the line of the trench and away from foundations as far as possible. When no longer required, they shall be backfilled and compacted as specified in Section 6.17 of this Specification.

6.5 ALLOWANCES IN EXCAVATION QUANTITIES

The following allowances shall be made for drainage excavation:

Width: (a) Single cell pipelines - In accordance with AS 3725.

(b) Multiple cell pipelines - As per single cell pipeline with a minimum of 300 mm spacing between the further most extremity of the pipes.

6.6 PIPE BEDDING MATERIAL

The material used for bedding of pipes shall be approved non-cohesive granular material having high permeability, high stability when saturated and free of organic material and shall be a single size material between 2.36 mm and 19 mm with a maximum plasticity index of 6.

Samples of the types of materials intended to be used shall be approved by Council prior to their use.

No bedding material shall be placed until the excavation has been inspected and approved by Council. After acceptance by Council, bedding material shall be placed and compacted to the correct level for pipe laying.

6.7 PIPE LAYING

Pipes shall be laid using lifting facilities, if provided, to the top or in accordance with the manufacturers requirements and shall have their full length in contact with the prepared bedding as specified, the pipes shall be placed to form drainage lines true to line, level and grade as shown on the Documents and/or as otherwise detailed and in a straight line. All pipes shall be laid in accordance with the requirements of AS 3725.



Any pipe which is not laid on true alignment or to design level and/or grade or which shows any settlement after construction or which is damaged during backfilling or compaction operations, shall be taken up by the Applicant, replaced with a new pipe, if damaged, and the drainage line completed to the satisfaction of Council.

6.7.1 Multiple Pipes

Where 2 or more lines of pipe are to be laid in parallel, the space between the furthermost extremity of each pipe shall be 300 mm.

6.7.2 Diameter Pipes

Where a pipeline of 1050 mm or larger in diameter is laid in a trench beneath an area to be paved and where the depth of backfill cover between the obvert of pipes and the subgrade level above is less than 0.5 m, all pipes shall be temporarily strutted internally in the vertical axis at each pipe joint. Struts shall be of timber or other materials of dimensions approved by Council and shall bear against sills and caps tightly wedged against the pipes.

Strutting shall be removed following completion of the construction of road, driveway or pathway pavements.

6.7.3 Angled/Curved Pipes

Where a drainage line contains an angled bend or curved pipes, the angle bends and curved pipes shall be supplied and laid in accordance with the relevant provision of this Specification and to details shown on the Document. This provision shall only apply to pipelines larger than 1200 mm in diameter.

6.8 CCTV INSPECTIONS OF DRAINAGE STRUCTURES

On completion of the approved engineering works and prior to the final inspection, or where directed by Council, the Applicant shall provide a Coloured Closed Circuit Television (CCTV) Report of the internal structure of all stormwater pipes and culverts that are part of the road drainage system, and shall rectify all defects evidenced by the Report to the satisfaction of Council.

All costs associated with the CCTV inspection and rectification works shall be borne by the Applicant.

6.8.1 CCTV Field Testers

CCTV Field Testers must have NATA accreditation under the Sydney Water Field Testing Services Program for CCTV inspections. Field Testers shall also have professional indemnity insurance adequate to cover the value of the works they are inspecting.



6.8.2 CCTV Inspection Procedure

The CCTV Inspection Procedure shall be carried out in accordance with the Water Services Association of Australia (WSAA) "Sewer Inspection Reporting Code of Australia" and the "Sewerage Code of Australia" (Sydney Water Edition).

The structural and serviceability condition ratings of the stormwater pipes and culverts shall be assessed using the SEWRAT computer program or equivalent.

6.8.3 CCTV Reports

The CCTV Report shall consist of a digital recording the inspection, a hard copy printout of the SEWRAT (or equivalent) report, and a CCTV Certification Statement.

6.9 SUBSOIL PIPES IN STORMWATER DRAINAGE TRENCHES

Subsoil drainage pipes shall be laid adjacent to every stormwater pipe and culvert for a minimum distance of 3 metres upstream at each pit. The subsoil pipe shall be fitted with a filter sock and shall comply with the requirements of Section 6.17. The filter sock shall be appropriately tied at the upstream end to preclude the entry of filter material. The subsoil pipeline shall be laid at the same grade as the stormwater pipeline or Culvert.

Where shown in the Documents or where directed by Council, subsoil pipes shall be laid for the full length between kerb inlet pits. The subsoil pipes shall be laid centrally located under the kerb in accordance with Section 6.17 of the Document. The pipe shall extend to the upstream pit and shall be connected through the pit wall at a level above the obvert of the outlet pipe.

6.10 METHOD OF PIPE JOINTING

All pipes shall be jointed in accordance with the manufacturers requirements.

Care must be taken to ensure that all joints are free from dirt or other obstructions and that the rubber rings if used are placed evenly in the joint.

All lifting holes provided shall be covered by mortar/sand mixture or other approved method before backfilling.

6.11 CONCRETE ENCASING

Concrete encasement, where shown on Documents, or where directed, shall have a minimum thickness of 150 mm above and below the pipe, and shall extend the full width of the trench. Ductile iron cement lined (DICL) pipes may be substituted for encased concrete pipes. Pipes to be encased shall be firmly supported to design line and level.



6.12 CONCRETE BULKHEADS

Where shown in the Documents or where the grade of the pipeline is ≥ 15%, concrete bulkheads shall be constructed at every second joint. The axis of the bulkhead shall be vertical with a minimum top width of 200 mm. Unless otherwise directed the top of bulkheads shall extend to within 300 mm of finished surface level or to the subgrade level where the pipeline is under a road pavement. On each side of the pipe at the level of the trench invert 100 mm dia pipes shall pass through the bulkhead. Such pipes shall be filled with fibreglass wool or other approved filter material. The bulkhead shall be located directly behind the downstream collar so as not to encase the joint.

6.13 DIRECT CONNECTIONS

Where direct pipe connections are shown on the Documents, both pipes shall be carefully cut or manufactured so that a neat junction is obtained. The inside joints shall be neatly and tightly finished with cement mortar so that the internal shapes of the pipes are maintained.

Junctions with a branch pipe of 225 mm diameter and over shall be supported on concrete as shown on the Standard Drawing A(BS)108M.

6.14 PRECAST CONCRETE BOX CULVERTS

Crown units shall be positioned true to line, level and grade as shown in the Documents, and the sections closely butted together. The sides and top of the crown units for the full length of the butt joint shall be covered with a 300 mm wide strip of polypropylene bitumen impregnated or similar fabric as approved by Council. All joints shall be tightly fitted.

The crown unit legs shall be set on a nominal 5 mm thickness of 3 to 1 wet cement mortar or other approved grouting material.

In all cases care shall be taken to ensure that the interior of the crown units have a neat, smooth and uniform surface at the joints.

See also Section 7.15 of this Specification.

6.15 DRAINAGE PITS

See Section 7 “Concrete Structures”, Section 7.14 of this Specification.

6.16 INSPECTION PRIOR TO BACKFILLING

All drainage lines shall be inspected and approved by Council after laying and jointing and prior to the placing of any backfilling.



6.17 BACKFILLING

Unless otherwise specified or directed, drainage excavations shall be backfilled and compacted with non-cohesive granular material e.g. sand or metal dust, to subgrade level under roads or a maximum of 300 mm above the top of pipe in other areas or as maybe approved by Council. Selected backfilling shall be placed and compacted by mechanical means in layers not exceeding 150 mm compacted thickness to a dry density equal to at least that of the surrounding undisturbed material.

The layers shall be saturated with clean water where required by Council and compacted by a vibrating plate or pencil vibrator.

Upon completion of pipelaying, jointing and backfilling of the drainage line, the whole of the drainage line including junction pits, inlet pits, etc., shall be cleaned and maintained in that state for the duration of the Defects and Liability Period, to the satisfaction of Council.

6.18 PRIVATE INTERALLOTMENT DRAINAGE

Where indicated on the Documents or directed by Council, inter-allotment drainage lines complete with fittings, pits and connections to stormwater pits and/or pipes shall be constructed.

Materials shall comply with the requirements of Section 6.3 and be jointed in accordance with manufacturer’s specification or other approved method acceptable to Council.

Unless otherwise specified the pipes shall be laid with their centreline 500 mm from and parallel to the lot boundaries at a minimum grade of 1 percent and having a minimum cover of 300 mm. Pits shall be constructed at changes of grade, pipe size or direction but not further spaced than five (5) lots or 75 m whichever is the shortest distance. When a inter-allotment line is connected to kerb, a pit shall also be constructed just inside the property boundary.

Pipes as per Section 6.3 shall be laid on a minimum of 50 mm of approved non cohesive granular bedding.

Inspection pits of 600 x 600 mm size for up to 600 mm deep lines and 600 x 900 mm size for up to 1500 mm deep lines and 900 mm x 900 mm size for deeper lines shall be constructed in-situ or precast and located within the proposed drainage easements.

Slope junctions shall be provided at the low point of the drainage line within each allotment where no pit is provided. The end of the slope junction pipe shall be fitted with a plug or cap clearly marked "stormwater only".

Where connecting to a stormwater pit, the piped crossing of the footway area between the pit near the property line and the pit in the roadway shall be constructed from concrete pipes with a minimum diameter of 225 mm. Pipes within private property shall have a minimum diameter of 150 mm.



Where the Inter-allotment Drainage Line is to be connected to the kerb the conduit shall consist of galvanised Rectangular Hollow Section (steel) of suitable size.

All lines shall be inspected and approved by Council after laying and jointing and prior to backfilling. Selected material from the trench excavation may be used for backfilling unless directed otherwise by Council. Trench backfill shall be compacted to the satisfaction of Council and the trench area shall be finally trimmed to restore the surface to final levels.

6.19 SUB-SOIL DRAINS

6.19.1 Location

Sub-soil drainage shall be constructed where shown on the documents or in the positions nominated by Council. Where sub soil drains are to be laid underneath concrete kerb and gutter they shall be positioned such that the vertical centre of the sub soil drain shall be directly below the invert of the gutter, as specified in Section 6.19.1 to Section 6.19.3.

6.19.2 Materials

Pipes

Perforated corrugated or smooth wall uPVC pipe, Class 400, conforming to the relevant Australian Standard for Perforated Drainage Pipes and Associated Fittings or Slotted fibre-reinforced cement subsoil drain pipe. Alternate systems of sub soil drainage may be considered subject to detailed information being provided to Council and subject to approval by Council.

Filter socks: shall be of approved manufacture.

Filter fabric: shall be approved type and shall comply with the relevant AS

requirements.

Filter material: shall be approved crushed rock of 20 mm (nom) size for the full depth of the trench.

6.19.3 Trench Excavation

Trenches shall be excavated to a width of 300 mm and a depth of 1000 mm measured from the design level of the lip of gutter, or to a depth that the pipe can be laid below any service conduit or as otherwise directed, and shall provide a minimum grade of 1%. The trench shall be excavated such that no localised areas of ponding occur.

In areas outside of road reservations the depth shall be 600 mm below natural surface.



6.19.4 Bedding, Laying and Backfilling

Pipes shall be bedded on 50 mm thickness of the specified filter material and shall be graded as shown on the Documents or at a desirable grade of not less than one percent and shall be connected to stormwater drainage pits.

After laying the pipes the trench shall be backfilled with the 20 mm(nom) crushed rock in layers not exceeding 300 mm to subgrade level. An approved filter fabric shall be placed over the crushed rock.



7 CONCRETE STRUCTURES

7.1 DESCRIPTION

This Specification provides for the forming, reinforcing, mixing and placing of concrete used in the construction of pavements, drainage structures, kerbs and gutter, and other miscellaneous or special concrete works.

7.2 CONCRETE MATERIALS AND SLUMP

7.2.1 Disposal of Concrete Waste

All concrete waste whether set or not which is not covered by Section 7.2.2 and Section 7.2.3 shall be disposed of in a facility registered to receive such waste.

7.2.2 Cleaning of Concrete Equipment

Concrete mixing, placing, finishing and transporting equipment such as truck agitators, barrows, hand tools, concrete helicopters, kerb machines, moulds and barrows shall not be washed down or cleaned in any area not approved by Council. Prior to commencing any concrete works, the applicant shall nominate an area within the site for such clean up to occur. Said site must be approved by Council and shall comply with all aspects of Section 3 of this Specification.

7.2.3 Ready mixed concrete shall be used for the works

Ready mixed concrete shall be obtained from an approved source and shall comply in all respects with the requirements of the Australian Standard Specification for Ready Mixed Concrete AS 1379-2008.

The nominal maximum size of aggregate in the ready mixed concrete shall be twenty (20) mm and the slump of the concrete at the time and place of delivery, when tested shall be as specified below. Any batch of concrete delivered to the site of the work and having a slump when tested in excess of that specified shall not be used in the work unless otherwise approved. All concrete rejected shall immediately be removed from the site and disposed of in a registered facility for the disposal of such waste or returned to the batching plant.



Item of Work Slump (mm) Machine moulded kerbs and gutters or similar work: 20 maximum

Concrete driveways and pathpaving 80 maximum

All other items: As specified in the Documents.

7.3 CONCRETE TESTING AND STRENGTH

Cylindrical test specimens 300 mm long by 150 mm in diameter, when sampled and tested by a NATA registered laboratory, from concrete taken at the time and place of delivery into the forms, shall develop a minimum crushing strength as scheduled below when tested in accordance with the current version of AS 1012:

TABLE 7.1

ITEM OF WORK MINIMUM CRUSHING

STRENGTH AT 28 DAYS MPa

Private access roads and community title roads 32 Footway crossings & Driveways 25 Dish crossing and apron 20 Bus bays 32 Drainage pits, headwalls, converters, channel linings and special structures as detailed in the documents

20

Pathways and integral kerbs 20 Kerbs and gutters and miscellaneous kerbing and edge supports

20

Street footpaving 20 Structural headwalls and drainage As specified in the

Structures to Special Design Documents

The strength of the concrete shall be determined from the average 28 day strength of not less than two test specimens moulded from each specified mix of ready mixed concrete actually placed in the work, selected to represent the whole of the concrete placed during the day of moulding. In general one pair of test specimens shall be moulded from each twenty cubic metres of concrete.



Water shall not be added to the concrete after batching. Any concrete so watered down shall be rejected by Council and removed from the site and disposed of in accordance with Section 7.2.3 paragraph 2.

Council may direct additional specimens to be taken for testing at seven or twenty-eight days. In order that subsequent working operations may proceed, work represented by specimens may be accepted in the event that the seven day test is satisfactory.

When kerbs and gutters and similar work are constructed using a self-propelled moulding machine, Council, in lieu of moulding cylindrical test specimens, may elect to extract cores at a maximum spacing of 100 m from the finished in-situ work for testing in accordance with the relevant section of the current version of Australian Standard AS1012.

If cylindrical specimens fail to achieve the specified twenty eight day strength, Council may arrange for cores to be extracted from the constructed work. In the event of the average strength of such cores, when tested, complying with the specified requirements, the work represented by the specimen cores may be accepted and the cost of extracting and testing of the cores shall be borne by the Applicant. In the event of core testing failing to satisfy the strength requirements, the concrete shall be removed and disposed of and replaced with new work. All cores holes left as a result of coring shall be filled with 20Mpa concrete to the level of the surrounding material.

7.4 REINFORCEMENT

Reinforcing bars shall be of mild steel conforming to the current Australian Standard "Hard- drawn Steel Reinforcing Wire" and "Hard-drawn Steel Wire Reinforcing Fabric", and shall conform to the current version of Australian Standard AS/NZS 4671.

All reinforcing bars and mesh shall be supplied by an ACRS accredited supplier and shall be appropriately marked with the supplier's unique identify mark. Any reinforcing steel or mesh not so marked AND supplied from an ACRS accredited supplier shall be immediately removed from the site.

All steel reinforcement shall be free from mill scale, grease, tar, paint, oil, mud, mortar or other foreign substance and shall be true to size. If in the opinion of Council the steel is coated with more than a thin film of rust it may be rejected for use in the work and shall immediately be removed from the site.

When required by Council the Applicant shall submit samples of the reinforcement cut to a suitable length or section for testing purposes.

All reinforcement shall be accurately placed in situ to the spacing and positions shown on the Documents with bends and hooks located at the points shown.



Reinforcement shall be secured in position by tying a sufficient number of times with suitable wire at laps and crossings to prohibit displacement during the pouring and working of the concrete.

Reinforcement in concrete slabs and similar work shall only be supported on chairs of approved manufacture, height and spacing.

7.5 FORMWORK

Formwork shall be so designed and assembled that it can be removed without damage to the finished concrete. Materials used in the formwork shall be of approved timber, free from loose knots and other defects, board or metal plate.

Timber forms and exposed surfaces shall be dressed on at least one surface and shall be either dressed or tongued and grooved at connecting edges. Forms for unexposed surfaces of walls, slabs etc. may be of undressed timber, board or metal plate.

Metal plate forms for exposed surfaces shall be clean, smooth, undented and unmarked and devoid of holes. Where bolt, screw or rivet heads are used for connections such connections shall be countersunk.

Forms shall be assembled true to line, level and grade, held rigidly to maintain position and shape and shall be butted and mortar tight. Forms shall be chamfered or filleted to the details shown on the Documents.

Prior to the pouring and placing of concrete the internal surfaces of the forms including chamfers, fillets, removable ducting and similar shall be uniformly coated with a thin film of oil, soap or other approved formwork compound to avoid adhesion of cement mortar and the staining and discolouration of exposed surfaces of the concrete. Any oil, soap etc. adhering to the reinforcement shall be thoroughly removed or the reinforcement taken from the forms and replaced with the specified quantity of clean, undamaged material all to the requirements of Council.

Any bolts, spacers or similar, supporting or separating forms shall be suitably greased and placed so that they may be later removed without damage to the concrete.

Formwork and forms shall be inspected by Council immediately prior to the placing of concrete. If during the placing of the concrete the formwork or forms show signs of displacement that portion of the concrete shall be removed immediately, the formwork or forms secured to the satisfaction of Council, and the concrete pour completed within the requirements of this Specification.



7.6 CONCRETE PLACING

Subgrade, formwork, forms and reinforcement shall be approved by Council before concrete is ordered for placing. All sawdust, shavings, pools of water and debris shall be removed from the space to be occupied by the concrete.

Concrete shall be placed in the forms by chute in a uniform continuous flow, the length and inclination of the chute being such as to prevent separation of the concrete ingredients. Concrete shall not be dropped into place from a height greater than one and a half metres. Prior to placing, the full area to be occupied by the concrete shall be thoroughly moistened.

Concrete shall be deposited and spread in horizontal layers and shall be compacted by vibration or other approved means. Care shall be taken to fill every space in the forms, to work coarse aggregate uniformly throughout the mix and away from form faces and to force concrete under and around the reinforcement without it being displaced.

No concrete which has developed initial set shall be used in the work and shall be disposed of in accordance with Section 7.2.1.

7.7 CONSTRUCTION JOINTS

Where a construction joint is necessary in a concrete pour it shall be provided in accordance with the details shown on the Documents. If not shown the joint shall be formed in a slab with a rigid bulkhead and dowels in a manner approved by Council or in the case of a vertical section by finishing the concrete to a level plane with a roughened surface.

Prior to the resumption of a concrete pour the surface of the joint shall be cleaned of all laitance, loose and foreign material, care being taken not to disturb reinforcement or to damage adjoining concrete surfaces. The joint shall be thoroughly saturated with water and fresh concrete shall be carefully worked against the surface of the concrete previously placed and around reinforcement at the joint.

7.8 REMOVAL OF FORMS

All forms shall remain in position for a period not less than 24 hours after concrete placement. Earlier removal being permitted only on the authorisation in writing of Council.

Should the air shade temperature fall below ten degrees or rise above 27 degrees Celsius, the minimum period may be extended as the Council directs.

Curing of concrete shall commence immediately forms are removed.



7.9 CONCRETE FINISHING

All concrete surfaces shall be finished true and even, free from air and stone pockets, depressions or projections. All arrises shall be sharp and true and moulding shall be evenly mitred, care being exercised in removing forms to ensure this result. Immediately on removal of formwork any rough surfaces, holes and honeycombed areas shall be repaired.

Wire ties protruding from the concrete after removal of the forms shall be cut back and any chipping of the concrete in executing this requirement shall be repaired with cement-sand mortar. Holes left by the removal of bolts, spreaders or the like shall be similarly treated. Additional treatment in some locations may be required where directed.

When directed exposed surfaces shall be wetted with clean water and rubbed down with an approved carborundum or sandstone block until all repaired areas, rough surfaces and joint marks of forms are removed leaving the surfaces clean and smooth and uniform in colour and appearance. Finishing work shall be completed within two days following removal of the forms.

7.10 CURING

Where necessary, the completed concrete shall be protected from extremes of temperature for a period of seven days during which time the concrete shall be kept continuously moist and covered with canvas, plastic or hessian sheets, chemical curing compounds, sand at least 50 mm thick or other approved means.

New work shall be adequately protected from damage by weather conditions, traffic or other causes and all necessary barriers and signs for the control of vehicular and pedestrian traffic shall be erected and maintained for the specified period of concrete curing.

7.11 FOUNDATIONS

Foundations and subgrades shall be prepared in accordance with the Specification for Formation.

The bases shall be formed to a smooth and regular surface and thoroughly compacted to give a foundation of uniform bearing value throughout.

No concrete shall be placed until the foundations have been inspected and approved by Council.



7.12 KERB AND GUTTER

7.12.1 Base

The base for kerbs and gutters shall be formed at the required depth, on an approved pavement sub-base in accordance with Section 8 of this Specification. A sub-base of compacted thickness not less than the road pavement sub-base with a minimum depth of 175 mm, shall be provided on the compacted subgrade.

Immediately prior to placing of the concrete, the surface shall be moistened, checked for uniformity and all irregularities made good. The sub-base materials under the kerb and gutter shall be protected from stormwater scour prior to backfilling and/or placing of the pavement materials.

7.12.2 Kerb Moulding Machines

Unless otherwise specified kerb moulding machines shall be used for the construction of kerb and gutter and profiles shall be in accordance with Standard Drawings.

The speed of the kerb moulding machine shall not exceed 2.5 metres per minute unless otherwise approved in writing.

7.12.3 Finish

All exposed concrete surfaces shall be finished clean and smooth, and uniform in colour and appearance. All corners, joints and edges shall be left neatly rounded.

7.12.4 Joints

Vertical expansion joints of approved bitumen impregnated jointing material or equivalent shall be placed at 12 m spacing or at the end of each day's construction, at junctions with existing work and at kerb transition adjacent to gully pits as per Standard Drawing A(BS)106M. Weakened plane joints shall be cut at regular intervals, 3.0 metres apart, and shall extend into the kerb and gutter faces at a minimum of 75 millimetres.

7.12.5 Crossings and Perambulator Ramps

Vehicular crossings and perambulator ramps, where required and/or shown on plan, shall be provided in conjunction and concurrently with the construction of the kerbs and gutters inclusive of roll kerb and gutter in accordance with Standard Drawing A(BS)104M.

The vehicular crossings shall be constructed in positions where shown on the Documents and to the details shown on Standard Drawing A(BS)102S or A(BS)103S or as otherwise specified. Expansion joints shall be provided at the end of each crossing/ramp.



Generally, vehicular crossings shall be located 1000 mm from the lower side of the respective lot boundary.

7.12.6 Curing

Curing shall be carried out in accordance with Section 7.10.

7.12.7 Tolerances

The finished concrete shall be in accordance with tolerances indicated in Sections 1.7.6.1 to 1.7.6.4.

Notwithstanding the levels shown on the Documents for gully pits, kerb returns and low points the Applicant shall ensure that the gutter near or adjacent to the gully pit is properly drained.

7.12.8 Provision for House Drainage Connection

Outlets through the kerb shall be provided as specified or directed for each house to drain roof water into the gutter in accordance with Standard Drawing A(BS)101M.

One drainage outlet shall be provided six (6) metres from the lower side of each lot or from the upper end of the vehicular entrance, where provided.

The Applicant shall fit the manufactured outlets into the kerb in a workmanlike manner ensuring that they are firmly secured in the concrete and fall towards the gutter. The surface shall be refinished to match the balance of the work.

Where kerb moulding machines are used the outlets shall be placed into position immediately after the machine has passed.

Outlets in roll kerbs shall be of approved manufacture and made of extruded aluminium or galvanised steel. The shape and size of the outlets, shall conform to that shown on Standard Drawing A(BS)101M.

7.12.9 Backfilling

After the concrete has set sufficiently, but not sooner than three (3) days after placing, the area behind kerbs and/or gutters shall be backfilled with sound approved material. It shall be thoroughly compacted in layers not exceeding 150 mm in thickness, without displacement of the adjacent construction, and left in a neat and workmanlike manner.



7.12.10 Replacement of Incorrect and/or Damaged Construction

All kerbs and gutters or similar work shall be constructed in a workmanlike manner so that it will resist damage or displacement by weather conditions, road construction, builders, and plant, or undermining by scouring away of the sub-base materials.

Where kerb and gutters or other concrete items are not constructed to line and level or are damaged, cracked or displaced during the Defects and Liability Period the Applicant shall remove and reconstruct such sections of concrete kerb and gutter or other concrete items as directed by Council.

7.13 CONCRETE FOOTWAY, PATHWAY

AND DRIVEWAY PAVEMENTS

7.13.1 Subgrade

The subgrade for concrete pavement shall be formed at the required depth below the base in accordance with Section 8 - Flexible Road Pavements, Section 8.6.

7.13.2 Sub-base

Approved sub-base material of the type shown on the Documents shall be spread, levelled and compacted on the prepared sub-grade. The minimum compacted thickness of the sub- base material shall be 25 mm or as indicated in the Documents. The sub-base shall comply with Section 8 - Flexible Road Pavements, Section 8.6. Immediately prior to placing of the concrete the sub-base shall be lightly watered.

7.13.3 Reinforcement

Reinforcement shall be as shown on the Documents and shall be supported above the subgrade by on chairs. All splicing of the reinforcement shall have a minimum overlap of 300 mm and be securely tied.

7.13.4 Finish

The concrete shall be struck off with a screed and finished with wooden floats, followed by light brooming at right angles to the alignment of the pavement to provide a uniform non-slip surface. All edges and joints shall be finished forming a minimum 50 mm margin in a neat workmanlike manner.

7.13.5 Joints

Joints shall be constructed in Private Access Roads and Community Title Roads as shown on the Documents.



In pathway and footway paving transverse joints shall be constructed at intervals 1.2 metres. Expansion joint shall generally be at intervals of six (6) metres and shall consist of 10 mm thick approved jointing material.

The mastic jointing shall be constructed to the full depth of the concrete.

7.13.6 Protection

Barriers and lights shall be provided, erected and maintained by the Applicant to protect sections of new work. Where there is any likelihood of access by the public, additional barriers and lights shall be provided, erected and maintained at the start and ends of all boxing left overnight in accordance with Australian Standard AS 1742.3-2019.

7.13.7 Cleaning Up

All spoil shall be removed concurrently with the work of excavation and backfilling. Trimming of footways shall be completed within seven days of the concrete being placed. An additional days deferment of backfilling at gateways may be permitted to avoid damage to footpaving by vehicular traffic.

All footways for the full width adjacent to constructed paving shall be trimmed by cutting or filling where required and all areas of loose material lightly compacted to the specified crossfalls and grades as shown on the Documents.

On completion of kerb and gutter and subsequent backfilling/trimming of the footway, a strip of turf (min. 500 mm wide) shall be placed adjacent to the kerb.

This turf shall be maintained to provide a dense cover to act as a siltation barrier, during the Defects and Liability Period.

7.14 DRAINAGE PITS

Drainage pits shall be cast in-situ, and for pipes 600 mm dia. and greater, benched internally with mass concrete to not less than one third of the outlet pipe diameter, notwithstanding that such benching may not be shown on the relevant Documents. Precast pits are not acceptable in Public Roads or for Council Drainage Easements.

Where drainage pits exceed 0.9 metres in depth, approved climb irons must be installed to provide a 300 mm vertical and 220 mm horizontal spacing.

Pit walls shall be formed on both the inside and outside faces.

Where drainage pits exceed 1500 m in depth the walls shall be reinforced with F82 for the full depth.



"Birdsmouthing" of pipes will not be accepted and all pipes shall be laid true to line as indicated on the Documents.

Subsoil drainage pipes, laid in accordance with Section 6 - Stormwater Drainage, Section 6.17, shall be connected to the next downstream pit and shall extend through any mass concrete benching so as to provide a free outlet.

7.15 PRECAST CONCRETE SECTIONS

(BOX CULVERTS AND PRE-FORMED BENDS)

Where indicated on the Drawings or where authorised in writing by Council, precast box culvert, concrete sections and/or bends may be provided to the form and dimensions shown on the Documents and shall be placed in positions specified.

The surfaces of the precast components shall be smooth, in true planes with square ends.

Patching and plastering of sections will not be permitted. The units shall be sound and free from cracks, chips, porous spots or other visible defects.

7.16 CAST IRON AND STEEL FITTINGS

Cast iron gratings, frames and other fittings shall comply with the relevant requirements of AS 1830-2002 "Grey Iron Castings".

Steel gratings, frames and other fittings are to be to the requirements of AS 1657- 2018 Ordinary Structural Steels - Ordinary Weldable Grades, they shall be hot-dipped galvanised in accordance with AS/NZS 4680-2006 "Galvanised Coatings".

Galvanised steel grates shall be of "Weldlok" gully grate type GG78-51 or GG78-42A or equivalent with flat skirt base.

Fittings shall be to the grade and dimension shown on the Documents and/or Standard Drawings and shall be firmly and evenly bedded into the concrete structure.

7.17 PATTERN STENCILLED CONCRETE PAVEMENT

FOR MEDIAN ISLANDS AND ROUNDABOUTS

Pattern Stencilled Pavement shall consist of a concrete base reinforced as specified, laid on an approved subgrade of granular material. After screeding of the concrete the specified patterned paper moulding shall be placed and stamped in place.

The colouring shall be supplied at the application rate and method specified by the manufacturer to a nominal 3mm thickness.



Surplus colour agent shall be removed by mechanical means. A curing agent shall then be applied as required by the specific method of colour application followed by the sealer.

The sealer shall be of a non-slip type suitable for public roadways.

Control joints shall be inserted by cutting of the slab to one quarter (¼) of the slab thickness at nominal 3000 spacing.

Contraction/expansion joints shall be constructed where directed or shown on the plan.



8 FLEXIBLE ROAD PAVEMENTS

8.1 DESCRIPTION

The granular materials for flexible road pavement construction shall consist of approved crushed or ripped sandstone, DGB 20, DGS40 and/or approved recycled materials in accordance with the relevant sections of this specification.

Alternatively the pavement may consist of a "deep" lift asphaltic concrete laid on a bound or unbound base course or sub base course. Asphaltic concrete shall conform with RTA R116 "Specification for Supplying and Laying of Asphaltic Concrete" see also Section 10 of this specification. The material shall be spread on the subgrade or sub-base in uniform layers to provide the specified pavement thickness. The base course shall be recessed, as shown on the Documents, unless otherwise specified, to receive the required thickness of AC wearing course. The initial layer of the wearing course shall consist of 25 mm of AC10 and shall be laid by the applicant. The final layer of the wearing course shall consist of a minimum of 25 mm of AC10 and shall be laid by Council.

Crushed or ripped sandstone meeting the requirements of Section 8.2 may be used. It shall only be used as a sub base material and shall have a minimum granular base course cover of 150 mm of better quality material.

All granular material to be used within the proposed road pavements shall be obtained from certified stockpile sites, previously confirmed by NATA registered laboratory to comply with this Specification for nominated material type(s). Any material not obtained from a certified stockpile shall be removed and replaced, at no cost to Council, with material that has been so certified.

8.1.1 Pavement Design

A formal pavement design shall be prepared by an Engineer and shall be based on sampling and testing of the subgrade materials taken from the site by a NATA registered laboratory. The pavement design and associated details shall be submitted to Council for approval a minimum of 5 days before commencing any pavement construction. The associated details required with the pavement design include the results of the subgrade testing (the design Californian Bearing Ratio values for the subgrade) and design traffic loadings. The minimum allowable unbound granular pavement thickness shall be 300 mm comprising of a 150 mm thick sub-base layer and a 150 mm thick base course layer.

Pavement designs shall comply with the requirements of Section 3.6 - "Pavement Design", of Council's Engineering Guide for Development.



8.1.2 Supply and Quality of Material

The supplier shall provide the Development Supervisor with evidence that the material to be used is from the certified stockpile site and the amount of material allocated to the works are adequate to complete the works. Material may be sourced from more than one stockpile site providing that all such stockpiles have been certified. Material sourced from separate stockpile sites shall not be blended to form a single stockpile nor shall they be mixed before or during the construction process.

8.1.3 Site Stockpiles

Site stockpile sites shall be formed on clean, even, well drained firm ground. Stockpiles of different materials shall be separated from each other and so positioned as to prevent cross contamination. No more than a total of 500 tonnes of material shall be stockpiled on site at any one time.

8.1.4 Certified Stockpiles Granular material for flexible pavement construction or restoration must be sourced from a stockpile certified by a NATA registered laboratory as complying with requirements of Council’s Civil Works Specification 2005. A material stockpile certificate must contain a statement of compliance with this Specification, and clearly identify:

1. Supplier name 4. Stockpile location 7. Stockpile number 2. Material type 5. Stockpile size (tonnes) 8. Certifier name 3. NATA accreditation number

6. Certificate issue date 9. Certificate “valid to” date

All testing and certification must be undertaken at cost of applicant or supplier. It is the applicant’s responsibility to obtain compliance certificates for all material used, and submit copies of these to Council. Full test results must also be made available to Council upon request.

Once a stockpile has been certified as meeting the requirements of this specification, no further material shall be added to the stockpile.

Each delivery docket shall identify the supplier and the certified stockpile from which the material is being supplied, and the site supervisor shall make all such documentation available for inspection by Council at any time.

8.1.5 Allowable Material Types

Only those materials designated as a Dense Graded Base (DGB) or a Dense Graded Sub Base (DGS) are permitted to be used within the flexible pavement. Materials designated as a Graded Macadam Base (GMB), a Graded Macadam Sub-base (GMS) or as a Macadam Sub-base (MS) are expressly precluded from being used as a component of any flexible pavement.



8.2 CRUSHED OR RIPPED HAWKESBURY SANDSTONE

All material shall be delivered from certified stockpiles. Any approval given to the source of supply of materials may be withdrawn if 3 or more samples taken from the pavement after compaction fail to comply with this Specification.

Note: Sandstone may not be used in pavements for Industrial Roads unless it has been augmented by a process approved by Council.

8.2.1 General

Crushed or ripped sandstone shall be minus 75 mm nominal size, derived from sound, clean sandstone free from overburden, clay seams, shale and other deleterious material and shall meet the requirements of Section 8.2.2 and shall have a minimum 4 day soaked CBR of 40% when a representative sample of the material passing the 19 mm sieve is tested in accordance with AS 1289 - 5.1.1 - 2017.

8.2.2 Grading

Table 8.1 below sets out the grading limits:

TABLE 8.1

Nominal Size % Passing Class All 75 mm 85-100 53 mm 75-100 37.5 mm 65-100 26.5 mm 57-94 19 mm 50-88 9.5 mm 37-76 4.75 mm 27-65 2.36 mm 20-52 1.18 mm 15-42 425 µm 10-28 75 µm 5-17

TABLE 8.2 Test Method Property Crushed Sandstone

Sub-base AS 1289.7 Linear Shrinkage 5% AS 1289.C1 Liquid Limit 23 (max) AS 1289.C3 Plasticity Index 12 (max) AS 1278.F1 Soaked CBR (based on 100% Standard

Comp. 4.5 Kg surcharge, 4 day test) 40 (min)



8.3 CRUSHED ROCK (DGB 20, DGS 20 AND DGS 40)

Crushed rock (DGB 20, DGS20 & DGS40) shall be unbound granular material and may consist of a blend of two or more granular materials. When the primary material is deficient in fine particles, material may be added and blended as necessary to meet the requirements of the Specification. Material produced by blending shall be uniform in grading and physical characteristics. The material shall comply with RMS QA Specification 3051 current Edition, Table 3051.1 and the various requirements of this Specification and, irrespective of the traffic category of the intended pavement, shall have a plasticity index no greater than 6; an aggregate wet strength of not less than 70 KN and a wet/dry strength variation of not greater than 35%.

8.4 RECYCLED MATERIAL

Recycled material may be used as either a sub base material or a base course material providing such material is sourced from a certified stockpile site. Where the material is to be used as a base course material it shall comply with RMS Specification 3051 and this Council Specification and, irrespective of the traffic category of the intended pavement, shall have a plasticity index no greater than 6; an aggregate wet strength of not less than 70 KN and a wet/dry strength of not greater than 35%. Where recycled material is to be used as a sub- base material, it shall comply with RMS Specification 3071 for a type A select fill and this Council Specification and, irrespective of the traffic category of the intended pavement, shall have a maximum wet/dry strength variation of 50%.

Recycled DGB material shall have a maximum UCS of 1.5MPa when tested in accordance with RMS Test method T116, MODIFIED compaction and cured at 7 days accelerated curing. Recycled DGS material shall have a maximum UCS of 1.5MPa when tested in accordance with RMS Test method T116, standard compaction and cured at 7 days accelerated curing. A minimum of 3 test per 4000 Tonne stockpile shall be undertaken for both types of material.

The Applicant must seek and obtain prior approval for the use of such material, and such material shall only be derived from a certified stockpile. Recycled material not derived from a certified stockpile shall be removed from the site.

The applicant shall provide Council with copies of all delivery dockets for material sourced from a Certified Stockpile. Such dockets shall clearly state the supplier, stockpile number and tonnes delivered.

The limit of foreign material for a sub-base material shall be as set out in RMS Specification 3071 Table 3071.2.

The limit of foreign material that may be incorporated into a base course material shall be as set out in the Table 8.3 below.



TABLE 8.3 Foreign Material Type Maximum Limit by Mass

(Test Method RMS T276) Base Type I: Metal, Glass, Asphalt, Stone, Ceramics and Slag (other than blast furnace slag)

1%

Type II: Plaster, Clay Lumps and Other Friable Material

0.1%

Type III: Rubber, Plastic, Bitumen, Paper, Cloth, Paint, Wood and Other Vegetable Matter

0.1%

Where a material or substance is not specifically listed as a foreign material type in the above Table 8.3 or in Table 3071.2 then the allowable maximum percentage shall be 0.00%.

8.5 FORMATION FILL MATERIAL

Where it becomes necessary to provide select fill material between the top of the natural subgrade and the bottom of the pavement material then this shall be done in accordance with RMS QA Specification 3071. The applicant shall furnish Council with the necessary NATA endorsed results confirming that the material does meet the requirements of this Specification. Such information shall be furnished to Council a minimum of five days before it is proposed to use such material.

8.6 DELIVERY

The pavement material shall be transported from the source to the site in appropriate vehicles which will prevent the loss of material including fines. Material shall be supplied with a moisture content (uniformly distributed) between the optimum moisture content and (minus) -3%.

8.7 SPREADING

Pavement material shall be spread in uniform layers of not more than 150 mm and not less than 75 mm so that after compaction the total pavement thickness is as specified. Spreading shall be undertaken by a method which will ensure that segregation does not occur.

The pavement base course(s) shall be extended for a minimum of 150 mm behind the back of the kerb.

Prior to compaction, the moisture content of the material shall be adjusted to obtain the optimum moisture content. Where necessary, water shall be added by an approved method, and shall be mixed uniformly with the pavement material by an approved mechanical device. Existing excess moisture in the material shall be dried to the specified moisture content by loosening and aerating.



Where the compacted surface is below the specified level, the defective area shall be scarified to a depth of 150 mm, new material added as required, and the area recompacted to required levels.

Pavement material shall not be spread upon a water-logged subgrade or sub-base. If, at any time, the subgrade or sub-base material becomes rutted, or mixed with the pavement material, the material shall be removed, reshaped and recompacted and material replaced with fresh material, if required.

8.8 COMPACTING AND TRIMMING

During compaction operations the moisture content of the material of a layer or course shall be uniformly adjusted throughout so as not to exceed Optimum Moisture Content or be less than Optimum minus 3% or as otherwise approved. Water may be added in an approved manner to achieve or to maintain the required moisture content.

After the mixture has been brought to the specified moisture content, it shall be compacted immediately. The compaction shall begin at the sides and progress to the centre, parallel with the centre line of the roadway, uniformly overlapping each preceding pass by a minimum of 150 mm and covering the surface completely.

The surface of any compacted layer of material shall, on completion of compaction and immediately before preparation for the overlaying with the next layer, be of a roughened texture, free from compaction planes (false pavement), ridges, cracks, or loose material. All segregated or otherwise defective areas shall be removed to the full thickness of the layer, relaid with new material and re-compacted to the satisfaction of Council.

After the first course has been completed to the specified depth and density, the second course shall be uniformly spread on the prepared surface and similarly treated. The top of each course shall be graded and trimmed to line and level.

Variations in the compacted thickness of each course shall be in accordance with Section 1.7.3, General Specification of Works.

Any irregularities in excess of the tolerances stated above shall be corrected.

Compaction of pavement material shall continue until there is no visible movement of the pavement under the proof roller as specified in Section 6.7. A dry density shall be achieved of not less than 98% modified of the density obtainable in AS 1289 - 5.4.1.– 2007 Dry Density/Moisture Content Relation of a Soil using Modified Compaction. Frequency of testing shall be in accordance with the current version AS3798-2007.



8.9 PAVEMENT AND DENSITY TESTING

8.9.1 General

The Developer shall arrange and bear the cost of all pavement testing as required by this Section.

Test results for each pavement layer shall be submitted to Council’s Engineer for approval. Approval to construct subsequent pavement layers may be given only after Council’s Engineer has reviewed the test results.

8.9.2 Density Testing

The pavement compaction requirements shall be as follows: Minimum Dry

Density Ratios (AS 1289 5.4.1. –2007):

Base Course 98% Modified Sub-base Course 98% Modified Subgrade 100% Standard

8.9.2.1 All testing shall be carried out by a NATA registered laboratory, or a

Council approved laboratory.

8.9.2.2 All testing shall be in accordance with test procedures as detailed in AS 1289.

8.9.2.3 Frequency of testing shall be in accordance with Table 2 of AS 1289 and

taken 1.0 m from the face of kerb on alternate sides of pavement.

8.10 PROOF TESTING

The Applicant shall make available a 3-wheeled self-propelled roller or other approved device acceptable to Council and shall carry out proof loading, by rolling that section of pavement to be proof loaded as directed by Council.

The roller shall have rear rollers of at least 1200 mm diameter and an intensity of loading of at least 7000 kg per metre width of roller, unless otherwise approved by Council.



8.11 PROGRESS INSPECTIONS

Construction of the pavement shall not be commenced on the formation until approval has been obtained from Council. Where pavement has been constructed or commenced in contravention of this Section, the Applicant, when ordered by Council, shall remove the pavement so commenced or constructed within the time specified by Council.

8.12 INSPECTION, SAMPLING AND TESTING

Regular inspection, sampling and testing of the pavement may be undertaken by Council while construction of the pavement is in progress. Field density tests to determine the degree of compaction may be carried out by Council, using the sand replacement method or its equivalent, or using nuclear devices, or such other method as may be approved.

8.13 DEFECTIVE MATERIAL

If, at any time during the progress of the work, any material supplied is found not to be in accordance with this Specification, Council will direct the Applicant to remove the unsuitable material and replace it with approved material. Previous acceptance of the whole or part of the material shall not restrict Council in its right to direct removal and replacement of material subsequently found to be unsatisfactory. The Applicant shall carry out such remedial work immediately, without cost to Council.

8.14 COMPLETED PAVEMENT SURFACE

The completed pavement shall have a uniform, hard, monolithic surface, which shows no visible movement under the roller and in which the pavement particles are tightly and uniformly bound.

Final sweeping of the pavement shall be carried out immediately prior to the application of bituminous surfacing materials to ensure that the surface is free of all slurry and/or dust which, in the opinion of Council, may interfere with the proper adherence of the bituminous materials to the pavement surface.

Prior to the application of the bituminous wearing course, the pavement shall be maintained in the above condition, to the satisfaction of Council.

8.15 OPENING PAVEMENT TO TRAFFIC

If required, and with Council consent, during the progress of the works the Applicant shall freely and without undue obstruction permit traffic to use the constructed pavement prior to the preparation for and the application of asphaltic concrete.

Where such use cannot be provided adequate side-tracks or detours shall be provided by the Applicant. Where appropriate, a Traffic Control Plan in accordance with Section 2 of this Specification shall be provided.



8.16 MAINTENANCE

During the construction period and throughout the duration of the Maintenance Period, completed pavements shall be maintained by the Developer in a clean and sound condition.

In the event of any defect appearing in a pavement, and whether before or after the application of surfacing material, the defect shall immediately be made good by the Developer. The defect area being scarified as required, shall then have the defective material removed, fresh pavement material added and the area re-compacted and trimmed and surfaced to produce a pavement which conforms with the requirements of the Specification and which blends evenly in with adjoining construction, all to the satisfaction of Council.



9 SPRAYED BITUMINOUS SURFACING

9.1 DESCRIPTION

This specification provides for the spraying of hot bitumen and the application of a suitable precoated aggregate to an existing sealed surface or an unsealed, prepared surface.

The surfacing shall be in one or two applications as specified elsewhere and/or as directed in the documents.

The work shall include the following:

Supply of all materials, including aggregate; Sweeping of pavement; Heating, cutting back binder in the field and applying binder for seal coat(s). Heating and applying cutback binder prepared at the refinery or other source of supply; Pre-coating of aggregate; Application of aggregate; Rolling and incorporation of aggregate; Maintenance of work.

In multiple application treatments, each application of binder shall be covered with aggregate and rolled as specified, before the subsequent application of binder.

Unless otherwise authorised, no sealing work shall be carried out while the pavement temperature is less than ten degrees Celsius (10ºC) in the shade, or during periods of wet weather, unless authorised by Council.

9.2 SUPPLY OF MATERIALS

The Applicant shall supply all of the various materials including precoated aggregate necessary for the execution of the work in accordance with this Specification.

9.3 MEASUREMENT OF MATERIALS

Unless otherwise stated all rates and quantities under this specification relating to binder and cutter oil shall refer to measurement by volume at fifteen degrees Celsius (15°C).



9.4 QUALITY OF MATERIALS

9.4.1 Binder

Bitumen shall conform to the RMS 3253 specification.

9.4.2 Cutter Oil

Cutter Oil shall conform to AS 3568.

9.4.3 Refinery Cutback Bitumen

Refinery Cutback Bitumen shall conform to RMS 3261 Cutback Bitumen.

9.4.4 Precoating Materials

Precoating materials shall conform to the current RMS Specification for the Supply and Delivery of Cover Aggregate for Sprayed Bituminous Surfacing. These may be oil based materials with additives, bitumen based materials with additives or water based materials with additives.

9.4.5 Aggregate

Aggregate shall conform to Specification RMS 3151 for the Supply and Delivery of Aggregate for Sprayed Bituminous Surfacing

The nominal size(s) of the aggregate shall be 14 mm for the first seal coat of a 2 coat application, and 10 mm for a single coat application or for the second seal coat of a 2 coat application.

9.5 SAMPLING OF MATERIALS

The Applicant may be required to supply at any time, adequate samples of any or all materials used or to be used in the work. The time of sampling may be either prior to dispatch of the material from source of supply or subsequent to its arrival at the job or both. The Applicant shall supply all facilities, equipment and labour for obtaining the samples.

The methods of sampling and testing shall be those described under the relevant materials specification contained in Section 9.4 where applicable. If any sample fails to conform to the specification requirements, the whole of the material represented by such sample may be subject to rejection or other action as described in Section 9.17.



9.6 PLANT

All plant and equipment necessary for carrying out the work in accordance with this Specification shall be provided by the Applicant.

All plant and equipment used on the work shall be kept in good operating condition and free from all fuel, oil, water or chemical leaks. Plant or equipment considered by Council to be unsuitable for carrying out the work in accordance with this Specification shall be removed from the site and replaced with suitable substitutes.

9.7 PREPARATION OF PAVEMENT

The pavement surface shall be swept free of loose stones, dust, dirt and foreign matter so as to uncover, but not dislodge the stones of the pavement immediately before applying the first coat. Sweeping shall extend 250 mm clear of the pavement.

A mechanically operated rotary broom shall be used for the sweeping provided it does not disturb the surface stones. If a satisfactory clean surface is not obtained thereby, additional sweeping shall be carried out by hand using stiff bass or similar approved brooms. Any adherent patches of foreign materials shall be removed from the road surface.

Where the prepared pavement is recessed below the gutter lip, additional sweeping shall be carried out by hand adjacent to the gutter lip to remove all loose material.

No spraying shall be commenced until the pavement has been prepared to the satisfaction of Council.

9.8 CONTROL OF WORK

Council may direct the width, length, alignment and section of road to be sprayed at any time.

Provided the width of treatment does not exceed 7.4 metres, Council may direct whether spraying is to be carried out to the full width of the roadway or in part widths. Where part width spraying is carried out the work shall be arranged to provide for a continuous flow of at least one lane of traffic.

The sprayer shall be so guided that the edge of the spray conforms at all times to the required line. Any section of pavement not adequately covered by binder shall be sprayed by the hand attachment.

Council may order work to temporarily cease on account of adverse weather, unsatisfactory condition of pavement or aggregate, or circumstances which are considered to adversely affect the work.



Variations in the proportion of cutter oil in the binder may be ordered by Council at any stage of the work.

The Bitumen Sprayer and all other equipment used on the work shall be kept in good operating condition and shall be operated by persons skilled and experienced in their respective duties. The Applicant shall remove from the work any workman or equipment considered by Council to be unsuitable for carrying out the work in accordance with this Specification.

All necessary precautions shall be taken to prevent binder, aggregate or other materials from entering or adhering to kerbs and gutters, gully pits, hydrants, or valve boxes, manhole covers, bridge or culvert decks, and similar road fixtures. Immediately after the aggregate has been spread over the binder, steps shall be taken to clean off any material and leave the site of work in a clean condition.

9.9 OPERATION OF SPRAYER

Unless otherwise authorised by Council and except as stated hereunder in this Section, the application of binder shall be made by means of a mechanical sprayer.

Where the use of the mechanical sprayer is not practicable the spraying of such areas as Council may approve may be carried out by means of the hand spray equipment.

The spray nozzles shall be of the make and type endorsed on the Sprayer Certificate. The Applicant shall measure and mark on the ground the length of the surface to be sprayed by each run of the sprayer.

Binder shall be applied at the rate specified or ordered and shall be within the tolerances stated in the relevant RMS Form, or as stated in other performance requirements acceptable to the Council. The spraying table referred to in that Form shall be available on the work site at all times and shall be used to determine the appropriate road speed and settings of sprayer controls prior to the commencement of each sprayer run.

After each sprayer run, the quantity of material sprayed shall be checked against the area covered and any necessary adjustments shall be made to ensure that the specified or ordered rate of application is maintained in subsequent runs.

Spraying shall cease immediately if any defect develops in the spraying equipment, and it shall not recommence until the fault has been rectified.

9.10 HEATING OF BINDER

Binder shall be heated to a temperature necessary to carry out the operations of cutting (if required) and spraying. The temperature of the binder at the time of spraying, shall be within the limits given in Table 9.1.



At no time during heating shall the specified upper limit be exceeded.

TABLE 9.1 HEATING AND SPRAYING TEMPERATURES

Type of Material Grade Dynamic Viscosity Range in Pa.s at 60°C

Range of Temperature for heating and Spraying °C

Cutback Bitumen

Bitumen

AMC4 AMC5 AMC6 AMC7 Class 170

2.0 - 4.0 5.5 - 11.0 13.0 - 26.0 43.0 - 86.0 140.0 - 200.0

110 - 135 120 - 150 135 - 160 150 - 175 160 - 190

Binders shall be heated in equipment which will permit uniform heating without damage to the content. The heating equipment and methods of operation shall be as approved by Council.

Only required quantities of binder shall be heated.

All binders shall be sprayed as soon as possible after heating.

Temperatures shall be checked regularly by means of a suitable thermometer with the readings within plus or minus 2.5 degrees Celsius (2.5ºC) of the correct temperature.

Two or more suitable fully-charged pressurised dry chemical fire extinguishers, shall be provided, and shall be placed conveniently to the heaters at all times while heating is in progress. Suitable loose sandy materials shall also be provided at the heaters for use in the event of fire.

9.11 CUTTING BACK BITUMEN BINDER

The percentage of cutter oil to be used in the binder at any time during the course of the work shall be subject to the approval of the Council and shall generally be determined from the road temperatures and the Cutback Chart.

The binder in each sprayer load shall be cutback as directed by the Council, and each sprayer load shall be accompanied by a certificate showing the volume of bitumen and cutter oil material respectively used.

9.12 APPLICATION OF BINDER

The binder shall consist of bitumen or cutback bitumen prepared in a bitumen refinery or other source of supply as scheduled in Table 9.1, or cutback bitumen prepared in the field.



The net cold rate of application of the binder unless otherwise specified, and/or specifically nominated on the Documents shall be:

Single coat seal or reseal 1.2 litre sq.m.

Two coat seal 1st application 1.3 litres/sq.m.

2nd application 1.1 litres/sq.m.

Council reserves the right to order variations in the specified rate(s) of application at any stage of the work.

When refinery cutback bitumen is used as the binder, the ordered rate for residual bitumen shall be increased, to allow for cutter oil in the mixture, in accordance with Table 9.2

TABLE 9.2

Grade of Refinery Cutback

Approximate Amount of Cutter Oil

Increase in Ordered Rate (%)

* Permissible Range of Road Temp (°C) Aggregate

Precoated Litre Rate (%) No Moisture

on Aggregate Moisture on Aggregate

AMC 4 AMC 5 AMC 6 AMC 7

16 11 7 3

19 12 8 3

- 12 - 17 22 - 27 32 - 37

10 - 15 12 - 28 22 - 38 32 - 48

When refinery cutback bitumen is in use, and the actual road temperature is outside the permissible range given in Table 9.2, spraying shall be deferred until the road temperature comes within that range. Alternatively, in the case when the road temperature is too low, extra cutter oil may be added to the binder as directed by Council. Any additional cutter oil shall be mixed uniformly with the binder.

The binder shall be applied to the prepared road surface in the manner specified at a rate of application within a tolerance of plus or minus 5% of that specified.

The temperature of the binder at the time of spraying shall be within the range specified in Table 9.1.

At the time of spraying, the road surface shall be clean and free from loose materials and where binder is to be applied to a primed or sealed pavement, the surface shall be dry. Where binder is to be applied to a pavement not previously primed or sealed, the surface shall be slightly damp.



The area to be sprayed with binder at any time shall be limited to that which can be covered with aggregate at the specified rate within 20 minutes of the time of spraying.

9.13 PRECOATING OF AGGREGATE

All cover aggregate shall be coated with an approved agent and at an application rate nominated but generally in the range of 6 to 15 l/m³.

Precoating material shall be thinly and evenly applied by means of a fine pressure spray to a moving stream of aggregate, in an approved mixing plant, so that all particles are fully coated, but do not contain excess material. Precoating only shall be carried out to accepted industry standards.

When precoated material is being applied, the aggregate may be dry or damp, but shall not contain excess moisture to cause uneven distribution of the precoating material on the aggregate particles.

9.14 APPLICATION, DISTRIBUTION AND

INCORPORATION OF AGGREGATE

After spraying the binder, aggregate as specified shall be spread uniformly over the sprayed surface by an approved mechanical spreader.

The rate of application of the aggregate, shall be:

Single coat seal or reseal 1 cu.m per 120 sq.m. (10 mm nominal size) Two coat seal 1st application 1 cu.m per 90sq.m. (14 mm nominal size)

2nd application 1 cu.m per 120 sq.m. (10 mm nominal size)

Council may order variations in the specified rate(s) of application at any stage of the work. In all cases the following procedure shall be adopted.

Sufficient material shall be at the site to provide the full aggregate cover required for the quantity of binder to be sprayed at that time. Aggregate at site shall be sufficient to re-run or hand cover bare or insufficiently covered places left after the first spreading.

The application of aggregate shall commence immediately after the spraying of the binder and shall be completed within twenty minutes of spraying. Bare or insufficiently covered places shall be re-run with the mechanical spreader or covered by hand as may be directed. Aggregate in excess of the rate of application specified or ordered shall be scattered and evenly distributed on the road.



In two coat work, before the second course of binder is applied, the first course of aggregate shall be incorporated thoroughly into the binder by rolling, and if there are any surplus loose particles on any portions of the sealed area, such portions shall be swept lightly, so as to remove the loose particles, but not disturb the aggregate bedded in the binder.

This work shall proceed as soon as the first course of aggregate is firmly held by the binder. After the second application of binder and aggregate, rolling and any necessary drag brooming shall proceed as specified.

9.15 COMPACTION

After the aggregate has been applied it shall be rolled with an approved pneumatic tyred roller followed by a steel drum roller.

Rolling of each section of the work shall commence immediately after the application of the aggregate thereto and shall continue until the aggregate is firmly embedded in the binder. Where required to ensure an even distribution of aggregate, the surface shall be traversed with a light drag broom after the initial rolling. If the broom has any tendency to dislodge aggregate particles bedded in the binder, drag brooming shall be deferred or eliminated and light hand brooming be substituted. The drag broom shall be in accordance with Section 9.6. Rolling shall be continued up to a maximum period of 24 hours after the aggregate is applied.

9.16 TRAFFIC

Traffic shall not be permitted to travel on the new work until approved by Council. Traffic shall not be permitted to travel adjacent to the works whilst binder is being sprayed.

Any precautions required to ensure the safety of traffic during the progress of the work shall be carried out without extra cost in accordance with AS 1742.3- 2019

Traffic control shall be in accordance with AS 1742.3- 2019 and Section 2 of this specification.

9.17 DEFECTIVE WORK OR MATERIALS

The Applicant shall make good any work that is not in accordance with this specification, whether caused by bad workmanship, or defective materials supplied, or by materials made defective by his operations or made defective by any other means.

9.18 WASTE MATERIALS

Waste aggregate, bitumen, empty containers or other materials remaining after completion of the work shall be disposed of from site and the work shall be left in a neat and tidy condition.



9.19 MAINTENANCE

Road pavements shall be maintained by the Applicant during the Maintenance Period.



10 SUPPLY AND LAYING OF ASPHALTIC CONCRETE (AC)

10.1 DESCRIPTION

This Specification provides for the Supply and Spreading of Asphaltic Concrete on Pavements for the areas, depths and nominal mix sizes indicated in the Documents.

10.2 MINERAL AGGREGATES

Aggregates shall comply with the requirements of AS 2758.5 and RMS QA Specification R116.

10.3 MINERAL FILLER

The mineral filler shall comply with AS 2150 –2005 Hot Mix Asphalt – A Guide to Good Practice.

10.4 BINDER

The binder shall be bitumen complying with the requirements of AS 2008- 1997 Residual Bitumen for Pavements. The bitumen shall be of Class 170 or 320 specified in the pavement design submitted by the applicant.

10.5 ADDITIVES

Polymer modified binder shall comply with the Austroads Specification Framework for Polymer Modified Binders (APRG Report No. 19).

The type and proportion of additives to be used in the mix, other than those specified elsewhere in this Specification, shall be in accordance with an approved specification. An approved specification may be a manufacturer’s recommendation, purchaser’s specification or as agreed between the parties.

10.6 REJUVENATING AGENT

Rejuvenating agent, if required in mixes incorporating recycled asphalt, shall be a low volatility oil capable of combining with bitumen to counteract hardening and produce a lower viscosity grade of binder. Rejuvenating agent shall comply with recognised standards for such materials.

10.7 PROPORTIONING OF MIXES

10.7.1 Each mix shall be designed with bitumen content and aggregate grading

within the general limits of AS 2734.

The properties for voids, stability and flow as determined by Marshall Compaction shall comply with AS 2734 Table 3.3.



10.7.2 The grading of the mix as produced shall not be varied from the grading of the mix design by more than the tolerances set out in the following table when tested in accordance with AS 2891.3.1.

Sieve Size Permissible Variation by Mass of Total Mix

19.0 mm and Larger ± 10% 4.75 mm and Larger ± 7% 2.36 mm and 1.18 mm ± 5% 600 um and 300 um ± 4% 150 um ± 2.5% 75 um ± 1.5%

The bitumen content of the mix produced shall not be more than 0.3% of that nominated in the mix design.

10.7.3 Residential Mix

Those streets to be surfaced with a wearing course of asphaltic concrete and which have design ESA’s of less than 5x105 AND less than 100 commercial vehicles per day shall have a wearing course of a residential mix AC10 of 2 x 25 mm thickness (total = 50 mm), that complies with the following mix properties in Table 10.1.



AGGREGATE GRADING:

TABLE 10.1 MIX PROPERTIES

Grading Type % passing AS sieve Dense Graded AC 10

Gap Graded AC 10

13.2 mm 100 100 9.5 mm 95 - 100 90 - 100 6.7 mm 80 - 95 65 - 85 4.75 mm 65 - 80 60 - 80 2.36 mm 45 - 60 55 - 75 1.18 mm 35 - 50 45 - 65 600 µm 25 - 40 30 - 50 300 µm 15 - 25 20 - 30 150 µm 7 - 15 10 - 18 75 µm 3 - 10 5 - 11 BITUMEN CONTENT Bitumen content expressed as a percentage of the total mix by mass

6.0 - 7.0 5.8 - 6.8

AIR VOIDS:

Percentage air voids in the compacted mix as tested by the Marshall method (at 35 blows)

3.0 - 5.0 3.0 - 5.0

STABILITY:

Minimum stability of the compacted mix as tested by the Marshall method (at 35 blows), kN

4.0 4.0

FLOW:

Flow of compacted mix (35 blow Marshall), mm

2 - 5 2 - 5

LAYER THICKNESS:

Optimum range of compacted layer thickness, mm

25 - 40 25 - 40



10.8 MIXING PROCEDURE

10.8.1 General

Mixing shall be undertaken in an approved batch pugmill, continuous pugmill or drum mixing plant, capable of uniformly mixing coarse and fine aggregate, filler and binder to meet the specified requirements at all times.

10.8.2 Temperatures

Thermometer elements of a suitable type, shall be placed in the flow of materials, and shall be accurate within plus or minus 2%.

Bitumen shall be at a temperature not exceeding 1650C when introduced to the mix.

Aggregates shall be heated to such a temperature that, when filler and binder are added, the temperature of the mixed asphaltic concrete shall not exceed 1650C.

The mix shall leave the pugmill, drum and/or the hot storage bin(s) at a temperature between 1400C and 1650C but in no circumstances shall the temperature of the mix at the time of laying be less than the minimum value specified in Table 10.1 for the appropriate road surface temperature and layer thickness.

10.8.3 Mixing Time

Mixing time shall be such that all particles of mineral aggregate are uniformly coated with binder.

10.8.4 Testing and Acceptance of Mix

Council reserves the right to test the mix at any time to determine its compliance with the Specification. The Applicant shall be responsible for taking the samples and shall supply all facilities, equipment and labour for that purpose. The samples shall be taken by the Applicant's representative at the point of production, along with control samples. The Council will arrange for the testing of the samples, and the results shall be made available to the Applicant in due time.

Control testing carried out by a NATA registered laboratory shall be considered as acceptance testing.

10.9 TRANSPORT

The asphaltic concrete shall be transported by trucks, the bodies of which shall be kept thoroughly cleaned and coated with a thin film of a suitable release agent to prevent mix sticking to the truck body.



During transport the asphaltic concrete shall be covered with a canvas or other suitable cover which is held down.

Delivery of the mix shall be at a uniform rate within the capacity of the spreading and compacting equipment. Transport shall be as expeditious as possible to minimise cooling of the asphaltic concrete.

The mass of all truck-loads of mix shall be measured on a weighbridge certified by the Department of Consumer Affairs.

10.10 PREPARATION OF PAVEMENT

The pavement shall be dry and free from surface water and shall be thoroughly broomed immediately prior to commencement. Existing bituminous surfaced pavements shall be groomed by mechanical means to remove all foreign matter. Any areas significantly affected by oil contamination shall be cleaned with a suitable cleaning agent.

Under no circumstances shall swept or waste material be placed on the footway or verge at any time.

Any correction course shall be laid and compacted in accordance with Sections 10.12 and 10.13 to the general level of the existing surface.

10.11 TACK COAT

The whole of the area to be sheeted shall be lightly and evenly coated with rapid setting bitumen emulsion (cationic) by mechanical applicator. Unless otherwise approved by Council, such work shall meet the requirements of current RMS Form 305, "Specification for Supply and Delivery of Bitumen Emulsion". The application rate of residual bitumen shall be 0.15 to 0.30 litres per square metre. For bitumen emulsion complying with current RMS Form 305, the application rate of undiluted bitumen emulsion shall be between 0.25 and 0.50 litres per square metre. If the bitumen emulsion is diluted, the application rate shall be adjusted to obtain the undiluted rate.

The tack coat shall be allowed to "break" (water separating from the bitumen) and resist picking up by tyres before the asphaltic concrete is laid. Any over application shall be removed or dispersed by brushing.

All surfaces to be in contact with AC shall be sprayed with a thin uniform application of tack coat.

Care shall be taken to ensure that the tack coat is not oversprayed, sprayed, or allowed to coat any other surfaces adjacent to the pavement. Any material so sprayed shall be removed or cleaned to the satisfaction of Council. The Applicant shall be held responsible for any damage to adjacent property, vehicles or persons sprayed with tack coating material.



10.12 SPREADING

10.12.1 Paver

Spreading shall be by an approved self propelled paving machine, having an effective spreading capacity of not less than 50 tonnes of mix per hour and shall be capable of laying the asphaltic concrete to a true and even finish.

10.12.2 Paving Procedures

Before commencing paving operations the work shall be set out with the order of runs, position of joints and levels clearly defined.

The paver shall operate at a uniform speed and its output shall match the rate of delivery of asphaltic concrete such that, as far as practicable, continuous spreading of the mix is achieved.

Unless otherwise approved by Council, asphaltic concrete shall not be spread by hand behind the paver. Workmen shall not stand or walk on hot asphaltic concrete except where necessary for correction of the surface.

Council may approve spreading asphaltic concrete by hand for the correction of minor irregularities and in areas inaccessible to mechanical pavers. Asphaltic concrete, so placed, shall be spread so as to produce a smooth even surface with uniform density to the correct level.

10.12.3 Laying Temperature

The temperature of asphaltic concrete at the time of laying shall be as shown in table 10.1:

TABLE 10.1

MIX LAYING TEMPERATURE

Road Surface Temperature in Shade 0C

Mix Temperatures 0C Layer

Thickness Less than

30 mm

Layer Thickness

30 mm to 40 mm

Layer Thickness 45 mm to 100

mm

Layer Thickness

over 100 mm

5 - 10 Not permitted Not permitted 145* 130 - 155 10 - 15 150* 145* 140* 125 - 150 15 - 25 145* 140* 135* 120 - 145 Over 25 140* 135* 130* 115 - 140

* Minimum laying temperature.



Under no circumstances will AC be allowed to be laid where the pavement temperature is less than 5ºC or when the surface of the road is wet. Where in the opinion of Council the spreading and compaction of the mix will be adversely affected by the prevailing weather conditions, AC will not be permitted to be laid.

Council may reject any part of any truck load which contains lumps of cooled asphaltic concrete which are liable to affect the quality of the finished surface.

The temperature of the mix shall be measured in the truck just prior to discharging into the power hopper. A suitable type thermometer readable and accurate to within 20C with a range from at least 00C to 2000C shall be used. The temperature shall be measured at a minimum depth of 200mm and at a location of a minimum of 300mm from the side of the truck body. An average of at least two readings shall be adopted as a temperature of the mix.

10.12.4 Layer Thickness and Level

The minimum compacted thickness of the mix shall be 2.5 times the aggregate size and a maximum of 4 times the aggregate size. The first layer of asphalt (which shall be laid by the applicant) shall be finished true to line and level and flush with the lip of the gutter on both sides for the full length of the works.

10.13 JOINTS

Work shall be so arranged that the number of joints, both longitudinal and transverse be kept to a minimum and the daily laying pattern shall be subject to approval by Council before work commences.

The density and surface finish at joints shall be similar to those of the remainder of the layer.

10.13.1 Longitudinal Joints

Care shall be taken to provide positive bond between adjoining runs.

Longitudinal joints shall be continuous and parallel. They shall coincide within 150mm with lines of change of crossfall where such occur. Joints in successive layers shall be offset by at least 150mm.

Hot joints shall be constructed by leaving an uncompacted strip approximately 150mm wide along the edge of the first run, and after the adjoining run has been spread, both sides of the joint shall be rolled simultaneously.



In the case of cold longitudinal joints, the edge of the first run shall be butted and slightly elevated while hot using hand lutes. If the edge is left exposed overnight or longer, Council may direct that the edge be trimmed to a straight vertical face and lightly coated with tack coat material by brushing. The adjoining run shall be placed against the prepared edge with an overlap of 25mm to 50mm. The overlap shall be pushed back using lutes, immediately after placing, to form a slight ridge along the joint which the roller shall compress adjacent to the edge of the previously placed run. Any excess, overlapping or segregated material shall be discarded.

The compaction of the mix at a longitudinal joint shall be carried out immediately behind the paver using either a static steel wheeled roller or a vibratory steel wheeled roller operated in a static mode.

When thin layers are to be compacted, Council may allow the use of a vibratory steel wheeled roller operated in the vibratory mode. In this instance, the first forward and reverse pass shall be made with the roller travelling on the hot lane and with a 150mm overlap on the cold lane.

Rolling shall continue until the joint is smooth and dense.

10.13.2 Transverse Joints

When the end of the spread material has cooled due to disruption of the work, or when resuming work on the next day, a transverse joint shall be formed.

Transverse joints shall be at right angles to the direction of paving. They shall be staggered by at least one metre between successive layers and between adjacent runs.

Runs shall be ended either against a timber bulkhead to ensure a straight vertical, well compacted edge or by feathering out and compacting. In the latter case, the feathered material shall be cut back to a line where the full thickness exists. The surface shape of the end of the run shall be checked by a straight edge to locate the line of cut.

The end of the previous run shall be lightly tack coated before the paving of the next run proceeds.

The joint shall be rolled with a steel roller transversely for several passes, with the roller projecting about 150mm further onto the fresh mix in each pass. If a vibratory roller is used, it shall be operated in the static mode.

Boards shall be used for off pavement movement of the roller to prevent rounding the edge of the mat. The joint shall then be rolled longitudinally.

When the asphaltic concrete layer is required to join and match the level of an existing pavement surface, sufficient of the existing material shall be removed to achieve the minimum specified layer thickness.



10.14 COMPACTION

10.14.1 Plant and Equipment

Compaction equipment shall be self-propelled and shall include any of the following types of equipment and various combinations of these types:

10.14.1.1 Static steel rollers shall have a mass not less than 8 tonnes and a drum loading

not less than 35kN per metre width of drum. Tandem rollers are preferred but three wheeled rollers may be used.

10.14.1.2 Vibratory rollers shall have a mass of not less than 6 tonnes and a drum

loading not less than 20kN per metre width of drum. Tandem, articulated rollers with vibration on both drums are preferred. They should be capable of vibration frequencies between 30Hz and 50Hz and amplitudes between 0.4mm and 1.0mm. They shall have provision for the vibration to be cut off when the roller is coming to a halt or changing direction.

10.14.1.3 Pneumatic rollers shall have a mass of ten (10) tonnes to twenty (20) tonnes

ballasted and tyre inflation pressures variable up to 700kPa. Numbers of wheels may vary from seven to eleven. The tyres shall have wide, flat smooth rolling surfaces.

For compaction in confined areas or patching works a small vibrating roller, or hand operated vibrating compactor acceptable to Council, shall be used.

10.14.2 Compaction Procedures

Rollers shall travel at a uniform speed not exceeding 5km/h for steel rollers and 10km/h for vibratory steel and pneumatic tyred rollers. They shall not remain stationary on recently compacted mix.

Lateral changes in the direction of rolling shall be made on previously compacted mix. Vibrating rollers shall not be stopped or reversed while in the vibrating mode.

Vibratory steel rollers shall not be permitted to travel when operating in the vibratory mode on cement concrete or previously compacted asphaltic concrete.

Compaction shall be considered in three stages, initial, secondary and final rolling:

10.14.2.1 Initial rolling

Initial rolling shall be carried out using steel rollers. Vibratory steel rollers may be used, but they shall be operated in the static mode for the initial passes. On deep lift asphaltic concrete, pneumatic tyred rollers may be used. When compacting thin layers, Council may permit vibratory steel rollers to be operated initially in the vibratory mode.



Initial rolling shall commence as soon as possible after laying has commenced. Rollers shall be operated as close as possible to the paver, with their driving wheels closest to the paver.

The transverse and longitudinal joints and edges shall be compacted first as specified in Section 10.13. Rolling shall then proceed longitudinally with the roller moving parallel to the run and reversing along the same track.

The roller shall gradually progress from the lower to the higher edge of the new mat. Each tract shall overlap the preceding one by about 150mm and shall terminate beyond the end of the preceding track by at least one metre.

Initial rolling shall be completed before the mix temperature falls below 1050C.

10.14.2.2 Secondary Rolling

Secondary rolling shall immediately follow initial rolling. Either vibratory steel rollers, static steel rollers or pneumatic tyred rollers shall be used. The tyre pressures of pneumatic tyred rollers shall be between 500kPa and 600kPa. Rolling shall commence at the longitudinal joint side of the run, with the roller reversing along the same track on each pass and shifting across the run in full roller widths to the opposite side.

Secondary rolling shall be completed before the mix temperature falls below 800C.

10.14.2.3 Final Rolling

Final rolling shall be carried out by a pneumatic tyred roller with tyre pressures between 600kPa and 700kPa to eliminate all roller marks and to produce a uniform finish. If any tyre marks exist after final rolling, Council may direct that they be removed with a steel roller operated in a static mode.

If secondary rolling has been carried out with a pneumatic tyred roller, a steel roller may be used for final rolling.

Final rolling shall be completed before the mix temperature falls below 600C.

10.14.2.4 Compaction Requirement

The minimum Characteristic Value of Relative Compaction of a sample core when tested in accordance with the RMS Form 612 shall be 95% for a layer of thickness less than 50mm or 96% for a layer of thickness of 50mm or greater.

Mix with an actual Characteristic Value of Relative Compaction of less than 90% shall be removed from the site. (RMS Form 612, Table 11 refers).



10.15 FINISHED PAVEMENT PROPERTIES

The finished surfaces shall be smooth, dense and true to shape, in accordance with Section 1.7.5 of the General Specifications. Sufficient measurements of thickness shall be taken before and after compacting to establish the relationship between the thickness of the uncompacted material and the completed work. Irregularities exceeding the tolerances given above shall be corrected before a subsequent course is placed.

Notwithstanding the foregoing tolerance the Applicant shall remain responsible for laying the minimum specified layer thickness of asphaltic concrete on all areas of the pavement.

10.16 WEIGHBRIDGE DOCKETS

The Applicant shall provide Council with numbered, dated weighbridge dockets in accordance with the weighing of truck loads specified in Section 10.9 of this Specification. All dockets shall bear the supplier's letterhead or identifying mark.

10.17 PROVISION FOR TRAFFIC

All necessary signs, barriers, etc., required for the control and protection of traffic shall be provided by the Applicant in accordance with AS 1742.3-2002. Special care shall be taken to ensure that vehicles and pedestrians are not sprayed with bitumen emulsion during tack-coating, and that entry to areas treated with tack coat or hot asphaltic concrete is prevented.

10.18 CLEANING OF GUTTERS AND GULLY PITS

All gutters and gully pits located within the boundaries of the work shall be cleaned and kept cleaned and kept clean during the period of contract, of all silt, debris, rubbish and surplus aggregate arising out of the execution of the works of the contract.

10.19 MAINTENANCE

Road pavements will be maintained by the Applicant during the maintenance period.



11 CONCRETE AND CLAY SEGMENTAL PAVERS

11.1 DESCRIPTION

Paving units shall be provided to areas shown on the documents, true to all grades, levels, curves etc. as required, and laid to give a uniform and regular pattern and shall conform to AS/NZ 4456.1 to 10 and Council’s Specification “For the Selection of Clay & Concrete Pavers for Use in Public Areas” see Section 11.8.

11.2 PAVING UNITS

11.2.1 Roads and Driveways

Unless otherwise approved by Council’s Engineer, paving units for driveways and road carriageways shall be Shape Type A concrete units complying with Council’s Specification “For the Selection of Clay and Concrete Pavers for Use in Public Areas” (see Section 11.8).

11.2.2 Footways

Paving units for use in footway areas shall comply with Council’s Specification “For the Selection of Clay and Concrete Pavers for Use in Public Areas” (see Section 11.8).

11.3 SUBGRADE

The subgrade shall be formed at the required depth, in accordance with the dimensions and design shown on the Drawings, and in general shall be cut from the solid. However, when over cut it may be built up to the correct level by the addition of material approved by Council. All subgrades shall be thoroughly compacted to the requirements of Section 5.11 of the Specification for Formation and finished to a firm, smooth surface of uniform bearing value.

Pavement construction shall not proceed until the subgrade has been inspected and approved by Council.

11.4 BASE COURSE FOR ROADS, DRIVEWAYS, PEDESTRIAN PLAZAS

AND COMMUNITY TITLE ROADS

The base course shall consist of concrete of a strength of 20 MPa, 150mm thickness and reinforced with a layer of F82 Fabric having 35mm top cover laid on a 100mm minimum thickness of sand stone sub-base course, unless otherwise approved or specified by Council’s Engineer.



The base course and sub-base course shall extend to the rear face of all edge restraints, unless otherwise specified, and shall be inspected and approved by Council prior to commencing the placement of the sand bedding course and the laying of units.

Control joints shall be constructed at 20m maximum intervals. These joints shall be dowelled and have an approved expansion material separating the slabs.

11.5 EDGE RESTRAINTS

Concrete kerbs and gutters, kerbs and edge strips shall be constructed to the details shown on the Documents and to the requirements of the Standard Drawing A(BS)112M.

After compaction of the paving units, their upper surface shall finish flush.

11.6 BEDDING SAND

11.6.1 Material

Bedding sand shall be well graded non-cohesive sand passing a 4.75mm sieve and confirming to the following grading limits:

Sieve size: 9.52mm 4.75mm 2.36mm 1.18mm 600um 300 um 50 um 75um

% Passing: 100 95 – 100 80 – 100 50 – 85 25 – 60 10 – 30 5 – 1 0 - 10

The bedding sand shall be fee of deleterious soluble salts or other contaminants likely to cause efflorescence or otherwise leading to reduced skid resistance.

11.6.2 Moisture Content

The sand shall be of uniform moisture content when spread and shall be protected from rain when stockpiled on site prior to spreading.

11.6.3 Spreading

The bedding shall be spread and screeded to the design profile and levels plus the necessary surcharge to achieve a minimum uniform 25mm thick layer following final compaction of the pavement. The maximum thickness of sand shall not exceed 50mm.



11.7 PLACEMENT OF PAVING UNITS IN ROADS AND FOOTWAYS

11.7.1 Placement of Paving Units in Roads

Paving units shall be placed on the screeded sand bed in the predetermined laying pattern, care being taken to maintain the specified pattern throughout the job. Paving units shall be placed to achieve nominal 2 to 4mm (max) wide gaps between adjacent units to correctly align all joints.

The initial row shall abut an edge restraint and shall be laid at the required angle to achieve the visual orientation of paving units in the completed pavement. (See standard drawings A(BS)112M).

In each row all full units shall be laid first. Closure units shall be cut and fitted subsequently. Units shall be cut by power sawing.

To infill spaces between 25 and 50mm wide a concrete having a 1:2:4 (cement:sand:coarse aggregate) mix and having a colour similar to the paving units may be used. The nominal aggregate size should not exceed one third the smallest dimension of the infill space. For smaller spaces dry packed mortar may be used.

Except where it is necessary to correct any minor variations occurring in the laying bond the paving units shall not be hammered into position. Where adjustment of position is necessary care shall be taken to avoid premature compaction of the sand bedding.

Any foot or barrow traffic shall use boards overlaying paving to prevent disturbance of units prior to mechanical compaction. No other construction traffic shall be allowed on the pavement during the construction process.

Paving units shall be laid in a herringbone pattern unless otherwise specified or directed and to design levels and grades.

As soon as practical after compaction, and prior to the termination of the work on that day and prior to the acceptance of construction traffic, sand for joint filling shall be spread over the pavement. The sand shall pass a 1.18mm sieve and have some 10% of silty material but be free of all soluble salts or contaminants likely to cause efflorescence or staining.

The filling sand shall be broomed to fill the joints. At least one pass of the plate vibrator is required to achieve compaction of joint filling sand.



As soon as possible after the filling of joints, construction traffic shall be encouraged to use the pavement to assist in the development of 'lock up'. Such traffic shall traverse the greatest possible area of the pavement.

Council may direct that, where a pavement is not to be subject to traffic loads for some time after completion, the Applicant maintain a sand surcharge over the pavement to inhibit moisture ingress.

Excess surface sand shall be removed by brooming at the end of the Defects and Liability Period unless otherwise directed by Council.

11.7.2 Placement of Paving Units in Residential Crossing

Paving units shall be placed in accordance with Council’s “Residential Vehicle Crossings” Specification or as otherwise directed by Council’s Engineer.

11.7.3 Damaged Units

Any units which are structurally damaged during compaction or which are otherwise damaged on the wearing surface or edges shall be removed and replaced with undamaged units.

11.7.4 Laying of Paving Units in Footways

The subgrade where paving unit shall be laid shall be prepared to grades and cross-fall indicated on the documents.

A layer of 75mm thick concrete of a strength of 20 MPa shall be placed upon this prepared subgrade.

A layer of fine, non-adhesive sand, 25 - 50mm thick when screeded, shall be placed on the concrete base, screeded and trimmed to level and grade.

Pavers shall then be laid in herringbone pattern, in accordance with Section 11.7.1 in this Specification.

Damaged units shall be taken up and replaced with new units.

11.7.5 Maintenance

All pavements shall be maintained by the Applicant during the Maintenance Period.



11.8 SPECIFICATIONS FOR THE SELECTION OF CLAY AND CONCRETE PAVERS FOR USE IN PUBLIC AREAS

11.8.1 General

This Specification covers the criteria to be applied when selecting either clay or concrete pavers for use within the Council controlled areas of Blacktown City Council.

11.8.2 Dimensions

All pavers to have a minimum width to length ratio of 0.45 when actual dimensions are measured in accordance with AS/NZS 4455-1997 and shall not exceed the following tolerances:

±

± ±

40mm on the length of 20 pavers 40mm on the width of 20 pavers 40mm on the depth of 20 pavers

11.8.3 Shape

11.8.3.1 Footpaths

Pavers to be laid in areas trafficked by pedestrians or motorised scooters may be any regular shape such as square, rectangular or hexagonal. Other shapes will only be considered after submission of an application in writing (with a representative sample) to the Manager Maintenance Services who will determine whether to grant or refuse permission for their use.

11.8.3.2 Roadways

Pavers to be laid in areas trafficked by any class of vehicular traffic shall be any regular shape designed to interlock with adjoining pavers and resist movement in both a transverse and longitudinal direction, and subject to the prior approval, obtained in writing, of the Manager Maintenance Services.

11.8.4 Edge Treatment

The edges to the wearing course shall be rounded or chamfered to a radius not exceeding 5mm.



11.8.5 Wearing Surface

Pavers shall have re-rolled finish rather than a wirecut finish. All wearing surfaces shall be smooth non slip, with no sharp projections.

11.8.6 Colour

The colour shall be similar to that of the existing pavers in Blacktown's Central Business District (Blacktown Main Street). A representative sample of any new coloured pavers shall be submitted to the Manager Civil Asset Maintenance for approval. No pavers shall be laid within the Blacktown City Council area without such approval being sought and obtained prior to laying. Where an existing paver colour has previously been used within the Blacktown City Council area, a representative colour sample need not be submitted, although approval must still be sought (quoting the location of the existing pavers) from the Manager Civil Asset Maintenance before its continued use.

11.8.7 Characteristic Requirements All pavers shall meet the characteristics set out in the following table when tested in accordance with the Australian Standard specified in Table 11.1 below.

TABLE 11.1 CHARACTERISTICS AUSTRALIAN STANDARD MINIMUM MAXIMUM

Abrasion resistance AS/NZS 4456.9- 2003 - 3.5cm3

Compressive strength (concrete)

AS/NZS 4456.4- 2003 45mpa -

Characteristic breaking load (clay pavers)

AS/NZS 4456.5- 2003 5kN -

Cold water absorption AS/NZS 4456.14-2003 - 8.0% Efflorescence AS/NZS 4456.6- 2003 - Nil Lime pitting AS/NZS 4456.13- 2003 - Nil Co-efficient of friction AS/NZS 4586- 2013

AS/NZS 3661-1993 Class W

45 - 54 BPN -

Transverse breaking load AS/NZS 4456.5- 2003 5.0kN -

11.8.8 Compliance All suppliers wishing to have their pavers pre-approved for use within Blacktown City Council will need to apply in writing to the Manager Civil Asset Maintenance for such approval. All such applications must be accompanied by a Certificate of Compliance from a NATA registered laboratory stating that all of the above requirements have been tested and have been found to comply with this specification. In addition, details of the supplier's manufacturing quality Assurance Accreditation must be supplied.



12 STREET FURNITURE

12.1 STREET NAME SIGNS

12.1.1 General

Street name signs shall be supplied and erected in accordance with Council's standard specification and Drawing No. A(BS)113M "Standard Street Signs and Posts". Reference should also be made to the current version of Australian Standard, AS 1906.1.

12.2 POSTS

12.2.1 Posts shall consist of steel pipe to AS 1074-1989 with a standard galvanised

steel finish or other such finish as may be approved by Council’s Civil Asset Maintenance Section.

12.2.2 The posts shall be sunk into the ground to a minimum depth of 600mm below

the existing finished surface. The excavation around the post shall be rammed and back filled with lean-mix concrete (proportions 1 part cement to 20 parts aggregate, by volume) to within 100mm of the finished ground surface. If located in the verge, the remaining 100mm shall be backfilled and rammed with top soil or selected excavated material free from rocks, etc. The surface shall be levelled and neatly trimmed.

Where approved by Council’s Engineer, signs may be erected using inserts and wedges in accordance with the suppliers installation procedures.

12.3 FIXING OF PLATES

12.3.1 The sign plates shall be fixed at right angles to the post by galvanised mild

steel brackets or cast aluminium brackets, and secured to the post by an adequate number of galvanised nuts and bolts.

12.3.2 The top of the sign plate shall be at least 5mm clear from the top of the post

(excluding cap), unless centrally mounted on a single post in accordance with Section 10.2.2 of this Specification.

12.3.3 The underside of the sign shall be 2400mm from top of kerb or finished

surface.



12.4 GUIDE POSTS

12.4.1 Guide Posts shall be erected at the ends of construction or where directed by Council. The guide posts shall consist of approved timber D.A.R. (or approved equivalent) 100mm x 50mm and 1.5 metres long, set vertically in the ground approximately 500mm deep. A uniform display of posts to a height of approximately 1 metre shall be provided with the tops boned in to compensate for irregularities in the shoulder contour.

12.4.2 All timber above ground shall receive one (1) undercoat and two (2) coats of

approved white paint. The portion of post below ground level shall be creosote treated.

12.4.3 The earth backfilled around the post shall be well and solidly rammed in

layers of not more than 150mm for the full depth and to ground level.

12.4.4 Each guide post shall be provided with retro-reflective delineators 50mm x 50mm, red being used on the left hand side and white on the right hand side as viewed by the approaching driver and red only at termination of roads.

12.5 SERVICE CONDUITS SIGNS

Where required by Council’s Engineer existence of conduits in a road shall be indicated by a sign 600mm x 600mm bearing the words:

"Service Conduits Laid. Opening of Road Surface Prohibited."

in red lettering at least 50mm high on a white background. The signs shall be located where directed by Council.



13 GRASSING

13.1 DESCRIPTION

This Specification provides for the preparation, fertilising, sowing, turfing, watering, mowing and generally caring for grasses on defined areas so as to provide a dense uniform distribution of the various varieties of grasses specified.

13.2 PREPARATION

Areas to be grassed shall be ripped along the contour to a depth of 200mm prior to topsoiling to provide a key for the topsoil and improve infiltration of water. Following ripping, the areas shall be topsoiled in accordance with Section 5 Earthworks and Formation, Section 5.14.

If considered necessary the area to be grassed shall be rotary hoed along the contour to a depth not exceeding that of the topsoil and generally to a depth of 100mm.

On steep slopes and on areas of high erosion hazard a rough surface shall be developed. A fine tilth shall be acceptable only on areas of low slope.

Light grading to effect the required surface profile may also be necessary and shall be carried out if so directed.

The topsoil of areas to be grassed by turfing shall be compacted with a light roller.

Trees existing on the site shall not be disturbed other than by being trimmed or lopped as directed.

13.3 GRASSING BY SEEDING

13.3.1 Grass Seed

The seed used shall be of the best quality available, shall have good germination characteristics and be true to variety. The seed shall be obtained from reputable suppliers and the Applicant shall produce evidence that he has complied with these requirements.

Until used, seed shall be stored off the ground in a cool, dry place and shall not be stored any longer on site than necessary.

13.3.2 Seed mixture for reserves, footways and embankments, earth drainage

channels and where otherwise directed.

13.3.2.1 Autumn/Winter Mix

Rye Corn or Oats 15kg/ha Wimmera Ryegrass 10kg/ha White Clover 5kg/ha Red Clover 5kg/ha



Couch Unhulled 5kg/ha

13.3.2.2 Spring/Summer Mix

Japanese Millet 24kg/ha Wimmera Ryegrass 8kg/ha Red Clover 5kg/ha White Clover 5kg/ha Couch Unhulled 5kg/ha Couch Hulled 4kg/ha

13.4 FERTILISERS

The fertiliser shall be an approved Nitrogen, Phosphate Potassium(k) starter fertiliser.

Unless otherwise specified, fertiliser shall be spread at the rate of 200kg/ha for footways, embankments and reserves and 250kg/ha for drainage channels.

Where clay panning is evident or where hard packing river loams are used, Council may direct that Gypsum be spread at the rate of 200-500kg/ha.

13.5 SOWING

When the area to be sown has been suitably prepared the seed mixture shall be uniformly distributed at the prescribed rate and by approved method. Unless otherwise specified, the prescribed quantity of fertiliser shall be distributed at the same time.

The area sown shall be watered at regular intervals to produce a dense grass which shall be maintained during the Defects Liability/Maintenance Period.

Sowing shall be carried out by the method indicated on the Documents or otherwise specified.

13.6 HYDROSEEDING

When grassing is to be carried out by hydroseeding, a hydromulching machine approved by Council shall be used to mix and spray a slurry of seed mixture, fertiliser, mulch and water onto the area to be grassed. Sufficient mulch material shall be contained in the slurry to carry and stick the seed mixture and fertiliser to the prepared surface.

The mulch shall be wood pulp unless otherwise specified or approved by Council.

13.7 GRASSING BY TURFING

13.7.1 Fertiliser

When the area has been prepared the whole area shall be watered and fertilised at the rate of 200kg per hectare spread evenly over the surface, lightly raked and re-watered. This application shall take place two (2) to three (3) weeks after laying of turf.



13.7.2 Supply and Planting of Sods

The sods shall be of couch grass unless otherwise specified and/or approved. They shall show healthy growth and to be of even thickness when delivered to site. The area from which the supply of grass is to be obtained shall be mowed before the sods are cut.

The placing of the sods shall be commenced immediately the soil has been watered and fertilised.

On completion of the laying of the sods, they shall be compacted by watering and rolling with a 90kg/per m. with a roller. Each sod shall be butted against the previous sod leaving no gaps after laying.

Immediately after the sods have been rolled, approved topsoil shall be spread to a depth of 10mm over the whole area and thoroughly watered.

13.8 CARE OF GRASSED AREAS

The sown and turfed areas shall be regularly maintained with the moisture content of the ground at a level sufficient to allow, where applicable, proper germination of the seeds and roots.

This regular care, by the Applicant, shall be continued throughout the currency of the Defects Liability/Maintenance Period.

Two (2) months after the sowing of the grass seeds and three to four weeks after laying turf, an application of Sulphate of Ammonia at the rate of 250kg per hectare shall be applied and well watered.

Council may direct to defer this second application of fertiliser to a later date if Council is of the opinion that the grass growth would benefit by such deferment.

13.9 MOWING

From time to time during the currency of the Defects and Liability Period the grassed area shall be mowed with an approved power grass mower. The height of cut shall be nominated by Council.

If Council so directs, the Applicant shall mow the grass within 72 hours of being so directed.

13.10 ESTABLISHMENT

A uniformly distributed dense grass cover of the specified varieties of grass shall be established over the whole of the area to eliminate wind and water erosion of the surface.

All steps necessary to establish a dense grass cover shall be taken.



13.11 MAINTENANCE

The Applicant shall maintain the grass cover for the time of the Maintenance Period.

If necessary, during the Defects Liability/Maintenance Period the Applicant shall take all action necessary to re-establish areas of grass damaged or destroyed by adverse weather conditions, fire, floodwaters, vandalism or any other cause.

The Applicant shall make good any damage that may be caused to any finished surfaces, fences, or paved areas by their plant or trucks used during the progress of the work.



14 DEFECTS LIABILITY/MAINTENANCE PERIOD

14.1 DESCRIPTION

The Maintenance Period shall have a duration of 12 months.

At any time during the Maintenance Period, Council may direct the Developer to rectify any defects which become evident within the constructed works.

14.2 SUBDIVISIONS

The Maintenance Period shall commence from the date of release of the plan of subdivision.

Prior to the release of the plan of subdivision a maintenance bond in the form of a bank guarantee or cash security representing 5% of the total cost of the subdivision works, with a minimum amount of $6,000 is to be lodged with Council.

14.3 ALL OTHER DEVELOPMENTS

The Maintenance Period shall commence from the date of the final clearance by the Council's Engineer.

A maintenance bond shall be assessed and lodged with Council prior to the final clearance.



15 STANDARD DRAWINGS

A(BS)101M Standard Kerbs and Gutters

A(BS)102S Standard Residential Footway and Layback Crossing

A(BS)103S Standard Industrial and Commercial Footway Crossing

A(BS)104M Path Paving at Intersections and Kerb Ramp Details

A(BS)105S Standard Pathway Barrier

A(BS)106M Standard Grated Gully Pit

A(BS)107M Standard Junction Pit

A(BS)108M Minor Drainage Collections

A(BS)109M Standard Surface Inlet Pits

A(BS)110S Accessway Detail

A(BS)111 Step Irons

A(BS)112M Typical Arrangement of Threshold Pavements at Intersections

A(BS)113M Standard Street Signs and Posts

A(BS)114S Standard Floodway Warning Signs and Mounting Bracket

A(BS)115M Construction of Traffic "Shake-Down"

A(BS)116S Channel Check Dams and Culvert Inlet Protection

A(BS)117S Sedimentation Basin


A(BS)119S Sediment Traps for Surface Inlet Pits


A(BS)121M Sediment Fence and Filters



A(BS)122S Siltation Traps for Kerb Inlets

A(BS)123M Perimeter and Diversion Banks

A(BS)124M Typical Locations for Signs and Markings Associated with Wombat Crossings

A(BS)125M Standard Indented Bus Bay

A(BS)126S Typical Calming Device for Residential Roads

A(BS)127S Rural Vehicular Crossing

A(BS)128S Specification for Bus Shelter Concrete Base/Apron - with Path Paving

A(BS)129S Specification for Bus Shelter Concrete Base/Apron - without Path Paving

A(BS)130S Not Required

A(BS)131M Standard Wombat Crossing, All Roads

A(BS)132 Not Required

A(BS)133S Not Required

A(BS)134S Standard Bicycle Path

A(BS)135S Not Allocated

A(BS)136S Deleted

A(BS)137S Special Pathway Barrier for Electric Mobility Scooter

WILLIAM LAWSON DRBlacktown

City Council

MIN. LENGTH 500 END MOUNTEDMAX. LENGTH1200 END MOUNTED

MAX. LENGTH 1800 CENTRE MOUNTED

CLASS 1 REFLECTIVEWHITE BACKGROUND

200

LETTER HEIGHT 100mm INDIN CONDENSED LIGHT FONT30mm FROM BRACKET

PRE-PRINTED UV INK ONLAMINATE LOGO.SEE SHT. 3 FOR DETAIL

180

10

BRACKET ALUMINIUM3mm THICK

185

50

15

HEC 4.6 BOLTS

15

PROTECTION AND PACKAGING OF ALL BLADES, BRACKETS AND

BOLTS, NUTS AND WASHERS SHALL BE GALVANISED AND OF

SHALL BE SUBMITTED WITH THE QUOTATION/TENDER.MANUFACTURER. DETAILS OF THE PERFORMANCE WARRANTY WARRANTY FROM THE RETRO-REFLECTIVE MATERIALALL STREET SIGN BLADES SHALL CARRY A 8 YEAR PERFORMANCE

TO DELIVERY.FROM DAMAGE DURING TRANSIT BY APPROVED WRAPPING PRIORRESPONSIBILITY OF THE SUPPLIER. SIGNS ARE TO BE PROTECTEDASSOCIATED FITTINGS FOR DELIVERY TO COUNCIL SHALL BE THE

WARRANTY

PROTECTION AND PACKAGING

TOLERANCE

BE SUPPLIED COMPLETE WITH BOLTS, NUTS AND WASHERS .

SUITABLE SIZE.

BRACKETS SHALL BE COMPATIBLE WITH THE SPECIFIED BLADE.

BRACKETS SHALL BE PRE-DRILLED (10mm DIA.). BRACKETS SHALL

BRACKETS

BE 175mm FOR 200mm BLADES.THE MINIMUM WIDTH OF THE BACKGROUND MATERIAL SHALLBLADE AND BE UNSPLICED ALONG ITS ENTIRE LENGTH.THE SHEETING SHALL EXTEND FOR THE FULL LENGTH OF THEAS/NZ 1906.1:2017 APPLICABLE FOR A 8 YEAR DURABILITY/WARRANTY.EXTRUSION BLADE BY THE APPROVED METHOD TO MEETVINYL SHEETING BONDED TO THE PREPARED ALUMINIUMTHE BACKGROUND SHEETING SHALL BE "CLASS 1 REFLECTIVE WHITE"

THE BLADES SHALL BE 200mm BLADES.THE POSITION AND DIAMETER OF THE BRACKETS.THE BLADES SHALL BE PRE-DRILLED TO COINCIDE WITH

WEB SHALL BE 2mm MINIMUM THICKNESS (REFER DETAIL A)THAN 5mm WIDE AND 7mm MINIMUM THICKNESS AND THELESS THAN 6mm THICK, THE FILLET SHALL BE NOT LESSTHE FLANGES SHALL BE 18mm MINIMUM WIDTH AND NO

THE LENGTH OF THE SIGNS SHALL NOT BE MORE THAN

EXTRUSION WITH SQUARE END.MARINE GRADE HIGH TENSILE STRENGTH ALUMINIUMSIGNS SHALL BE MANUFACTURED FROM AN APPROVED

STREET NAME BLADE SPECIFICATION

STREET NAME SIGNS

BLADE AND BRACKET SUPPLIED AND ORDER NUMBER.DELIVERY DOCKETS SHALL INCLUDE FULL DETAILS OF EACH

COUNCIL'S SUPPLIED ORDER.THIS SPECIFICATION IS TO BE READ IN CONJUNCTION WITH

BACKGROUND

1800mm.

3.03.1

2.4

2.3

2.2

SIGN BLADE

GENERAL

2.1

1.2

1.1

2.0

1.0

NOTE

7.0

6.0

4.2

4.1

5.0

4.0

1. CONTRACT SIGN MANUFACTURERS TO OBTAIN COUNCIL LOGOAND SPECIFICATIONS FROM COUNCIL.

2. END MOUNTED SIGNS MUST HAVE STREET NAME ON BOTHSIDES.

3. DOUBLE ENDED SIGNS (CENTRE MOUNTED) HAVE STREET NAMEON ONE SIDE ONLY.

MANUFACTURING TOLERANCES OF SIGNS SHALL BE SPECIFIED IN SECTION4 - MANUFACTURING AND MATERIALS OF A.S. 1743:2018 SPECIFICATIONS.

GI:\TTSHARE\STANDARD DRAWINGS\A(BS)113MStSignPosts\A(BS)113M.dwg 13.02.2019 / 11:52 AM cleggk ----

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A(BS)113M.dwg A(BS)113M3

----STANDARD DRAWINGSSTANDARD STREET NAMES & POSTS

STREET NAME BLADE SPECIFICATION

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MANAGER ASSET DESIGN

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CO-ORDINATE SYSTEM HEIGHT DATUMAHDMGA ZONE 56

G NOV. '18 REDRAWN - NEW SIGN, NEW LOGO & NOTES REVISED XX XX DD.MM.YY DATELic No.QAC/R61/0103

ASSET DESIGNDRAWING FILE LOCATION / NAME PLOT DATE / TIME PLOT BY

DO NOT SCALE FROM DRAWING

COUNCIL CHAMBERS: 62 FLUSHCOMBE ROAD, BLACKTOWN, NSW 2148ALL MAIL: GENERAL MANAGER, PO BOX 63, BLACKTOWN, NSW 2148

TELEPHONE: (02) 9839 6000 FAX: (02) 9831 1961 DX : 8117 BLACKTOWN

Blacktown

City Council

106

8

2

200

610

18

12

DETAIL AN.T.S.

ALL DIMENSION IN MILLIMETRESUNLESS OTHERWISE STATED

N.T.S.

35MINIMUM LENGTH 500

MAXIMUM LENGTH 1200

ALUMINIUM BRACKET

NORMAL BACKFILL

GALVANISED BOLTS,NUTS AND WASHERS.

560 MAX.

380

220

TOP OF KERB

330

2400

MIN

.

MATERIAL.ANDKERB

GUTTERANCHOR ROD.13Ø HOLES FOR

BACKFILL.LEAN MIX CONCRETE

200

SINGLE ENDED SIGN DOUBLE ENDED SIGN

FOOTING DETAILS

SIGN PLATEFOOTING DETAILS AS PER SINGLE ENDED SIGN

DETAILS GENERALLY AS FOR SINGLE ENDEDSIGN UNLESS OTHEWISE SPECIFIED.REFER SHT. 1 AND BRACKET DETAIL FOR CENTRE MOUNTING.

SIGN PLATEFOR DETAILS REFER SHT. 1.

DAVID ROAD

DAVID ROAD

BENJAMIN CR

SUSAN DRIVE

BIRMINGHAM ROAD

GEORGE DRIVE

NETA DRIVE

BRIDGE ROAD

2400

MIN

.

2400

MIN

MAJOR

ROADMINOR

ROAD

STREET SIGNS AT INTERSECTION STREET SIGNS AT JUNCTIONSSTREET SIGNS MOUNTEDON TIMBER POWER POLES

END MOUNTED.

TO BE ERECTED WHERE DIRECTED.CHEVRON "HAZARD" BARRIER

CENTRALLY MOUNTED.

STEEL POSTWITH CAP

GALVANISEDEND CAP.

STANDARD

BRACKET FOR ATTACHINGTHREE SIGNS TO STEEL POST

SINGLE SIGN TO STEEL POSTBRACKET FOR ATTACHING

TWO SIGNS TO STEEL POSTBRACKET FOR ATTACHING

DETAIL 1

DETAIL 2

DETAIL 3

DETAIL 4

SINGLE SIGN TO TIMBER POSTBRACKET FOR ATTACHING

SIGN. MINIMUM 2400 CLEARANCE ABOVEMUST BE CONTACTED PRIOR TO ATTACHINGTHE MAINS ENGINEER, ENDEAVOUR ENERGY

GROUND LEVEL MUST BE STRICTLY OBSERVED,

NOTE:

PLATE FOR BOLTSGROOVE ON SIGN

ATTACHED TO BRACKET.

BRACKET FOR ATTACHINGEXTRA LENGTH SIGN TO MULTIPLE

DETAIL 5

POSTS OR CENTRE MOUNTEDDOUBLE ENDED SIGN

REFER DETAIL 5. REFER DETAIL 4.

RIDGE ROAD

REFER DETAIL 1.REFER DETAIL 2.

50Ø NOMINAL BORE(MEDIUM GAUGE)GALVANISED PIPE x3200 MIN.50Ø NOMINAL BORE

(MEDIUM GAUGE).


City Council


City Council

MAXIMUM LENGTH 1800


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DETAILS

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B.C.C.TITLE NAME

DESIGNED

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SCALE







Blacktown

City Council

N.T.S.


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LOGO DETAILS

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CAD FILE

PROJECT

FILE No PLAN No REV

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TITLE

THIS

DRA

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G MA

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D IN

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AND

MAY

BE IN

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IF C

OPIE

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B.C.C.TITLE NAME

DESIGNED

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DRAWN


ACCEPTED

SCALE







Blacktown

City Council

N.T.S.