Engineering Drawings Guide€¦ · • Table 1: Standard Residential Road Design Elements •...

Standards and Requirements Design, Construction and Development of Infrastructure Assets

The District Council of Mount Barker

District Council of Mount Barker – August 2007

DISTRICT COUNCIL

OF

MOUNT BARKER

Standards and Requirements for the Design, Construction and Development of Infrastructure Assets in the District Council of Mount Barker

AUGUST 2007


TABLE OF CONTENTS

LIST OF TABLES DRAWINGS & ATTACHMENTS ..................................... IV

LIST OF REFERENCES AND ACKNOWLEDGEMENTS.............................. V

1 INTRODUCTION ...................................................................................1-1

2 DEVELOPER RESPONSIBILITIES ......................................................2-1

2.1 Service Authorities ...........................................................................................................2-1

2.2 Documentation to be provided to Council .......................................................................2-1

2.3 Pre Construction..............................................................................................................2-4

2.4 Post Construction.............................................................................................................2-5

2.5 Liabilities and Insurances ................................................................................................2-6

3 ROAD NETWORK ASSETS .................................................................3-1

3.1 Developer Responsibilities ...............................................................................................3-1 3.1.1 Prior to Development Approval .....................................................................................3-1 3.1.2 Prior to Construction .....................................................................................................3-2 3.1.3 Post Construction ..........................................................................................................3-2

3.2 Road Hierarchy and Geometry .......................................................................................3-3 3.2.1 Street Definitions ..........................................................................................................3-3 3.2.2 Street Pattern.................................................................................................................3-5 3.2.3 Arterial Traffic Routes...................................................................................................3-5 3.2.4 Access Lanes or Roads within Community Title Land....................................................3-6 3.2.5 Design Speeds ...............................................................................................................3-6 3.2.6 Carriageways and Road Reserve Widths ........................................................................3-6 3.2.7 Local Widening.............................................................................................................3-7 3.2.8 Junctions .......................................................................................................................3-7

3.3 Road Construction Standards .........................................................................................3-7 3.3.1 Pavement Design...........................................................................................................3-7 3.3.2 Kerb and Watertable......................................................................................................3-8 3.3.3 Road Materials ..............................................................................................................3-8 3.3.4 Concrete........................................................................................................................3-9 3.3.5 Block Paving.................................................................................................................3-9 3.3.6 Hold Points for Council Inspection ..............................................................................3-10

3.4 Path Construction Standards ........................................................................................3-10 3.4.1 Shared Paths................................................................................................................3-11 3.4.2 Provision for Cyclists ..................................................................................................3-11 3.4.3 Connection of Off Road Paths to Roads .......................................................................3-12 3.4.4 Verges.........................................................................................................................3-12 3.4.5 Stormwater..................................................................................................................3-13 3.4.6 Driveways...................................................................................................................3-13

3.5 Traffic Management ......................................................................................................3-14


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3.5.1 Design of Traffic Management Proposals.....................................................................3-14 3.5.2 Roundabouts ...............................................................................................................3-15 3.5.3 Cul-De-Sac Turning areas............................................................................................3-15 3.5.4 Other Traffic Management Devices .............................................................................3-15 3.5.5 Other Traffic Considerations........................................................................................3-16 3.5.6 Road Signs ..................................................................................................................3-16 3.5.7 Pavement Marking ......................................................................................................3-16 3.5.8 Street Names ...............................................................................................................3-16 3.5.9 Car Parking .................................................................................................................3-17 3.5.10 Provision for Buses.................................................................................................3-17 3.5.11 Public and Street Lighting.......................................................................................3-18

4 STORMWATER DRAINAGE.................................................................4-1

4.1 Developer Responsibilities ...............................................................................................4-1 4.1.1 Prior to Development Approval .....................................................................................4-1 4.1.2 Prior to construction: .....................................................................................................4-2 4.1.3 Post construction ...........................................................................................................4-3

4.2 Detention ..........................................................................................................................4-4 4.2.1 Detention Basins ...........................................................................................................4-4 4.2.2 Micro-Ponding ..............................................................................................................4-5 4.2.3 Off-line Storage.............................................................................................................4-6

4.3 External Drainage Headworks ........................................................................................4-6

4.4 Drainage Design ...............................................................................................................4-6 4.4.1 Connection and Integration to Councils Drainage Network.............................................4-7

4.5 Drainage Easements.........................................................................................................4-7

4.6 Residential Development Drainage Requirements ..........................................................4-7

4.7 Residential Unit Development Drainage requirements ...................................................4-8

4.8 Drainage Requirements for Industrial and Commercial Development ..........................4-8

4.9 Minimum Floor Levels.....................................................................................................4-9

4.10 Stormwater Pollution Control Devices ..........................................................................4-10

4.11 Stormwater Pipes...........................................................................................................4-10

4.12 Side Entry Pits and Manholes........................................................................................4-10

5 LANDSCAPING AND OPEN SPACE ...................................................5-1

5.1 Developer Responsibilities ...............................................................................................5-1 5.1.1 Prior to Development Approval .....................................................................................5-1 5.1.2 Prior to Construction .....................................................................................................5-1 5.1.3 Post Construction ..........................................................................................................5-2

5.2 Legislative Responsibilities ..............................................................................................5-3

5.3 Water Features ................................................................................................................5-3

5.4 Landscape Design Principles ...........................................................................................5-3


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5.5 Existing Trees...................................................................................................................5-5

5.6 Street Trees ......................................................................................................................5-6

5.7 Reserve Design .................................................................................................................5-7 5.7.1 Trees in Reserves ..........................................................................................................5-7 5.7.2 Grassing........................................................................................................................5-7 5.7.3 Fencing .........................................................................................................................5-7 5.7.4 Irrigation .......................................................................................................................5-8 5.7.5 Furniture .......................................................................................................................5-8 5.7.6 Paths .............................................................................................................................5-9 5.7.7 Lighting ........................................................................................................................5-9 5.7.8 Entrance Statements ......................................................................................................5-9

6 COMMUNITY WASTEWATER MANAGEMENT SCHEMES (CWMS) .6-1

6.1 Fees and Charges .............................................................................................................6-1

6.2 Design Requirements .......................................................................................................6-2

7 ENVIRONMENTAL PROTECTION.......................................................7-1

7.1 Site Control ......................................................................................................................7-1

7.2 Water Conservation.........................................................................................................7-1

7.3 Environmental Control ....................................................................................................7-1

7.4 Solid, Liquid and Gaseous Contaminants .......................................................................7-2

7.5 Preservation of Flora .......................................................................................................7-3

7.6 Working Hours ................................................................................................................7-4

7.7 Site Access ........................................................................................................................7-4


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List of Tables Drawings and Attachments Road and Drainage

• Table 1: Standard Residential Road Design Elements • Drawing 1 Typical Layout Access Lane • Drawing 2 Typical Layout Access Road • Drawing 3 Typical Layout Local Street • Drawing 4 Typical Layout Collector Road • Drawing 5 Typical Layout Collector Road with Cycle Provisions • Drawing 6 Typical Terminating Road Turning Provisions

Typical Minimum Road Construction Cross Section • Drawing 7 Typical Standard Kerb & Channel Details • Drawing 8 Typical Standard Footpath and Verge Details • Drawing 9 Typical Standard Kerb Ramp Details • Drawing 10 Double Side Entry Pit Layout • Drawing 11 Driveways and Crossovers

Landscaping

• List of Council Preferred Street Trees • List of Council Preferred Trees in Reserves

Community Wastewater Management System (CWMS)

• Sheet 1 – Standard CWMS Manhole • Sheet 2 – Standard CWMS Flushing Point details • Sheet 3 – Type 1 property connection details (trafficable areas) • Sheet 4 -Type 2 property connection details (non-trafficable

areas) • Sheet 5 – Standard CWMS construction layout dimensions • Sheet 6 – Maximum distance for a ( Y ) connection • Sheet 7 – Typical trench and backfill requirements • Sheet 8 – Minimum details for ‘As constructed’ drawings • Standard specification for excavation and reinstatement of

services under Council controlled land.


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List of References and Acknowledgements

The following reference documents have been used to assist the preparation of this document.

• The Development Act 1993 • The District Council of Mount Barker Development Plan • Code of Technical Requirements for the Legal Use of Traffic Control

Devices, Transport SA (1999) – the “Code” • Minister for Transport and Urban Planning Notice to Council - Traffic

Control Devices and Road Events under the Road Traffic Act 1961 (12 March 2001) – the “Minister’s Notice”

• Commonwealth Disability Standards for Accessible Public Transport • AS 1428, Part 1: Design for Access and Mobility, General

Requirements for Access-New Building Work, Standards Australia (2001)

• AS 1428, Part 2: Design for Access and Mobility, Enhanced and Additional Requirements-Building and Facilities, Standards Australia (1992)

• AS 1428, Part 4: Design for Access and Mobility, Tactile Indicators, Standards Australia (2002)

• AS 1158, Part 3.1: Road Lighting, Pedestrian Area (Category P) Lighting-Performance and Installation Design Requirements, Standards Australia (1999)

• Guide to Traffic Engineering and Practice, Part 13, Pedestrians, AUSTROADS (1995)

• Guide to Traffic Engineering and Practice, Part 14, Bicycles, AUSTROADS (1999)

• Design Vehicles and Turning Path Templates, AUSTROADS (1995) • AMCORD – Australian Model Code of Residential Development,

Commonwealth development of Housing and Regional Development (1995)

• GRDSA – Good Residential Design SA, Planning SA (1999) • PUACC - Services in Streets Public Advisory Committee (1997) • Stormwater Pollution Prevention – Code of Practice for the Building

and Construction Industry – March 1999 – EPA. • Stormwater Pollution Prevention – Code of Practice for Local, State

and Federal Government – November 1997 – EPA. • Stormwater Pollution Prevention – Code of Practice for the

Community – September 1997 –EPA. • Septic Tank Effluent Drainage Scheme Design Criteria (DHS &LGA) • Technical Specifications for the Construction of a Septic Tank

Effluent Disposal System. (DHS) • CWMS general information available on the Local Government

Association Web Site (www.lga.sa.gov.au)

District Council of Mount Barker – August 2007 vi

In addition to reference to the above Standards Documents it is also acknowledged with thanks that reference to and extracts from the following documents have also been used in the preparation of these Standards and Requirements;

• The City of Playford “Land Division Requirements”.• The City of Salisbury “Draft Land Division Guidelines” (unpublished).• Mosman Municipal Council “Policy for on Site Water Detention”.• Mosman Municipal Council “Guidelines for Stormwater Drainage

Systems”.• Far North Queensland Regional Organisation of Councils

(FNQROC) Development• Brisbane City Council – Urban Management Division Dwg. UMS 335


SECTION I

INTRODUCTION


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1 INTRODUCTION

• Land division is “development” and therefore requires approval under the Development Act 1993. Development applications will be assessed against the provisions of the Mount Barker District Council Development Plan.

• The Development Act specifies several mandatory land division

requirements, including

• 12.5% of the land shall be vested in the Council as open space. There are provisions for this to be contributed as land or monetary payment or a combination of the two up to this limit.

• Roads must be designed, constructed and sealed to recognised Australian Standards and be built in accordance with the District Council of Mt Barker Council policies and standard drawings

• Footpaths, water tables (kerbs and gutters), culverts and drains must be designed and constructed to recognised Australian Standards and be built in accordance with Council policies and standard drawings.

• All electricity must be supplied underground unless it is specified by Council that the area does not require underground mains.

• The requirements of public agencies, including Council, shall be met for the supply of water, gas, telecommunications and CWMS or sewerage systems.

This document provides further information pertaining to Councils expectations regarding these mandatory requirements, specifically relating to the engineering requirements for the development of land and the provision of infrastructure.

• This Standards and Requirements document has been prepared by

Council as a reference document to assist Developers, Planners and Engineers involved in the planning and design of land development in the District Council of Mount Barker Council area where there is a requirement to construct infrastructure assets.

• The document will assist Developers to undertake preliminary planning

and design work and to have an understanding of what Councils minimum requirements are to facilitate discussion with Council prior to lodgement of a Development Application.


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• These Standards and Requirements have been prepared with the aim of encouraging “best practice” in the development of new urban areas in the District of Mount Barker. It is acknowledged that “best practice” changes over time and reviews will be made to these standards and requirements on a needs basis in order to reflect such changes.

• This document should be used by Developers for infrastructure

planning and design, however, each development site and Development Application will vary from site to site. Accordingly, designers are encouraged to consult with the Council Engineering and Planning Staff and any other relevant authorities prior to or during the preparation of designs.

• Designers, in addition to the requirements of this document, should

ascertain the specific requirements of all authorities as they relate to the proposed designs for the specific development site.

• This document does not outline the specific information that may be

requested by Council in order to make an assessment on the merits of a land use planning development application.

• Development approval will be incumbent on all of the requirements of

the Development Act 1993, the Mount Barker District Council Development Plan and site specific planning conditions being met. This document does not specifically address planning issues and the applicant should contact Councils Department of Strategy and Development Services regarding these issues.

• This Standards and Requirements document shall be used in the

planning, design and construction of Direct Infrastructure Assets as identified in Developer Contribution agreements established between Council and The Developer.

• This Standards and Requirements Document is not intended to inhibit

innovation. Council encourages and will consider innovative design where it can be demonstrated that the alternative approach is equal to or superior to the standards set out in this document.


SECTION 2

DEVELOPER RESPONSIBILITIES


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2 DEVELOPER RESPONSIBILITIES The Developer shall engage a professional engineer to design and supervise all engineering works associated with the development. The drawings and specifications for such works shall be approved by Council, in writing before any construction work commences.

2.1 Service Authorities The Developer shall be responsible for all liaisons with the relevant Service Authorities in relation to the provision of the services to each individual allotment within the proposed development. These services shall include, but not be limited to: -

• water reticulation and services;

• electrical reticulation including service pillars;

• telecommunication;

• street lighting;

• conduits and pits for telecommunication services;

• gas reticulation and services; and

• CWMS or sewerage services. For the provision of sewerage and wastewater facilities liaison should be undertaken with the Council in accordance with Section 6 of this document. All underground services are to be installed prior to the construction of road pavements. Where it is necessary to provide mains or service connections across existing roads Councils preferred method of connection is via directional horizontal boring wherever existing soil conditions and service locations permit to minimise disruption to existing road pavements. Wherever it is not possible to carry out boring and it is necessary to excavate trenches through existing Council roads, the Developer shall reinstate such surfaces in accordance with the requirements of the current version of the Transport SA Standard Specification for “Excavation and Reinstatement of Road Pavements”.

2.2 Documentation to be provided to Council Prior to Granting Provisional Development Plan Consent to a subdivision Council engineering staff will need to: -

• be satisfied that the subdivision will;


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a) adequately cater for future vehicular traffic, b) include appropriate provision for buses, pedestrians and cyclists, c) make due allowance for major stormwater flow paths and detention areas, d) provide usable reserve areas that will be of benefit to the community.

• have a full appreciation of any possible impacts of the subdivision upon the environment, neighbouring lands, adjoining developments, and existing infrastructure.

• understand the proposed order of development including; a) the staging of the development b) the construction schedule c) the release of land schedule. d) the broader implications of the impact the development will have on the existing stormwater network and other existing infrastructure.

To assist Council in its deliberations on these broader scale and long term issues, the Developer may be requested to provide: -

• A Structured Plan – drawn to a 1:200 scale – showing: • Road hierarchy; • Road carriageway widths; • Stormwater management proposals; • Any physical traffic control devices; • Connections to existing streets; • Bus routes and bus stops; • Bicycle routes and shared paths; • Pedestrian paths and crossings; • Locations of parking restrictions, special parking zones, on

street parking provision in streets and driveway locations; • The written comments of the Public Transport Division of the

Department of Transport, Energy and Infrastructure, on the above plan and other documentation provided by the Developer in relation to the design of bus stop parking, the location of bus routes, bus stops and shelters, and whether such features are new or existing and are affected by the development works. In the absence of comments, it needs to be demonstrated that this agency has been consulted.

• A statement and if necessary a plan, listing estimated traffic flow

figures for the subdivision shall be provided. This statement or traffic


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impact plan shall be prepared by a professional engineer with relevant experience.

• A report on the geotechnical investigations undertaken for the site.

The investigation shall include, as a minimum: - • Test pitting over the site to minimum depths of 2.5m to establish and record the presence of any possible rock or groundwater. • Classification of all different soils encountered on the site, using visual tactile methods by an experienced technician or engineering geologist and verified if necessary by NATA registered laboratory testing. • Preparation of a stratigraphical model for the site, including a description of the underlying geology, and soil formation processes. • Definition of the extent of any fill encountered. • Soaked CBR testing of all types of soils that will be encountered at the designed street sub-grade level. The testing shall be carried out in accordance with AS 1289.5.1.1-2003 on soils compacted to 95% dry density ratio (Standard). The above information shall form the basis of the design of roads, drainage and earthworks associated with the subdivision

• A Concept Stormwater Management Plan for the whole development

showing the locations and sizes of any stormwater retention/detention basins, delineation and areas of all sub-catchments, minor stormwater flow paths (Q10), and flow path for the major event (Q100). If in the vicinity of a watercourse, a flood study may also be required.

• Full details of the construction staging, and an indicative timetable • In relation to any proposed permanent water bodies: -

• predictive modelling of the impacts of the proposed basin on both groundwater quality and water table levels in its environs; • the geotechnical data upon which the modelling is based.

• A Concept Open Space Plan for the whole development setting out

the location type and size of the area for all proposed public open space, and a landscaping concept plan demonstrating how the open space will serve a community purpose and fit into the existing neighbourhood.

• An Existing Trees Survey Plan setting out the location of all existing

trees with diameter in excess of 400mm on the development site and within 5 metres of the site boundary. The plan should identify and individually number those trees to be removed and retained and be accompanied by an Arborist report, detailing the significance of the trees. Council may require a commitment from the developer to enter into a Land Management Agreement to protect significant trees.


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• A Concept Plan indicating the proposed method to deal with the

collection, treatment and disposal of sewerage, and sewerage waste (including wastewater) from the site.

2.3 Pre Construction Prior to the commencement of any work on any stage, the following data, relevant to that stage, is to be submitted to the Council for approval:

• Final road construction drawings indicating: • Road layout and geometry (including traffic management

measures and intersections to existing roads), • Road pavement design • Parking and driveway plan (including the location and width

of splays in relation to driveway openings at the boundary of each allotment),

• Details of any special driveways – longitudinal gradient greater than 1 in 6 to proposed lots (where necessary),

• Lighting Plan with luminare, light poles and standard of design details,

• The measures to be implemented during the construction process to control sediment and erosion in the form of a Sediment and Erosion Control Plan.

• Footpath and shared path details,

• A detailed Landscaping and Open Space Plan incorporating street trees (position, type, height) and street scaping, reserve landscaping treatments including tree planting

• A detailed Stormwater Management Plan, including stormwater

drainage system for that stage (such as pipe location, size, class etc) including any works external to the site and any temporary drains and banks

• An Easement Plan. • Full details of the construction staging, and an indicative timetable.

• A copy of the approved sewerage “Community Wastewater

Management Scheme” (CWMS) design drawings.

• Written confirmation from ETSA Utilities that it will accept all ongoing maintenance costs for the proposed lighting infrastructure.

• A copy of the final electrical reticulation drawings, showing the

locations of all transformers, HV switching cubicles and street lighting.

District Council of Mount Barker – August 2007 2-5

• Technical Specifications and Tender Details.

• Hydrological and hydraulic calculations with longitudinal drainagesections.

• The Developer shall also submit for each stage of the development aComposite Services Plan (hard copy, colour presented at a scale 1:1,000 or larger, and an electronic copy in AutoCAD format .dwg),clearly showing all cadastral boundaries, easements, permanentsurvey marks and lot numbers; the locations of all water andsewerage mains and service points; all stormwater drains, pits, andrear of allotment service points; the common service trench routesand lot service pillars/points; street lights and power poles; andelectrical transformers and switching cubicles.

• This Composite Services Plan will be used by Council in itsconsideration of any Development Applications that it may receive inrelation to lots within the subdivision prior to receipt from theDeveloper of the electronic format “as constructed” drawings for thatstage as set out below.

• Bank Guarantees or bonding arrangements necessary for the proper performance of the works as specified in Councils Model Bonding Agreement.

2.4 Post Construction

Prior to the acceptance of the works by Council Developer shall supply the following information to the complete satisfaction of Council,

• An electronic copy of the “As-Constructed” drawings for all civil worksin AutoCAD (.dwg) format. This is to include any variations to the For Construction plans, including survey results. The drawing must reference the following coordinate system, unless otherwise specified:

Australia Geocentric Datum 1994 (AGD 94) Map Gird Australia Zone 54 (MGA 54)

All infrastructure assets constructed should be included in the drawing and where possible referenced to the digital cadastral database (DCDB). Council is currently preparing a more detailed specification for asset information to be submitted in electronic format post construction. Council reserves the right to introduce or change these specifications at any time in the future.

• A hard copy of the “As Constructed” drawings for all civil works inaccordance with specifications above.

• A schedule or register of all the infrastructure that will become theproperty of Council in tabular Excel format to the satisfaction of Council


• Copies of compaction test results, as follows:• Roads - Four tests per thousand square metres in each layer

(the Council may specify the location from time to time).• Trenches in Roads - One test per each layer for each

material every 30 metres of trenching. One test per trench foreach service trench to each property.

• Certification from the consulting professional engineer that thedevelopment has been constructed in accordance with the approvedplans and specifications

• Certification from the Department of Human Services that the CWMShas met their approval.

• Ensure that all easements to be provided to Council and all otherService Authorities comply with Council requirements and are in place.

• Bank Guarantees or bonding arrangements necessary as specified inCouncils Model Bonding Agreement

Once Council is satisfied that the works have been undertaken in accordance with the plans and specifications, a letter of acceptance of Practical Completion will be issued.

2.5 Liabilities and Insurances

The Developer shall be responsible for all damage to existing facilities, services and structures sustained as a result of the development of the subdivision, whether those damaged items are in public or private ownership. All damage shall be promptly reinstated to an equivalent standard acceptable to the owner.

Council will require the Developer to take out all necessary insurance policies to indemnify and protect it against any claims that may arise in undertaking the development.

Council will require the Developer to enter into a Bonding Agreement between the Council and the Developer and/or the Developers Financier prior to work commencing in accordance with the Councils Model Bonding Agreement.

Council may require the Developer (or the land owner in the case where the developer does not own the land) to enter into a Land Management Agreement with Council to ensure that the land and existing trees on the property that are identified as to be retained are appropriately protected and maintained in good condition prior to, during, and at the completion of the development.


SECTION 3

ROAD NETWORK ASSETS


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3 ROAD NETWORK ASSETS “In traffic function terms, the residential street is confined to the local access function within a precinct or neighbourhood, whilst the traffic routes serve the movement function to it and around the neighbourhood” (Australian Model Code for Residential Development, Edition 2, November 1990 – Page 47). The geometry of a road is to be designed so as to meet the following aims.

• Provision of safe and convenient access to all allotments for

pedestrians, vehicles and cyclists. • Provision of appropriate access for buses, emergency and service

vehicles. • Provision of convenient access route for public utilities. • Provision of an opportunity for streetscape development. • Provision of convenient parking for visitors.

To assist developers and designers to meet these aims Council has adopted the street classification system detailed in Table 1: Standard Residential Road Design Elements. This table sets out the general minimum standard design elements for the various road classifications. It should be noted however that some of the design elements may be varied as a result of relevant site conditions.

3.1 Developer Responsibilities

3.1.1 Prior to Development Approval Prior to Granting Provisional Development Plan Consent to a subdivision, Council engineering staff will need to: -

• be satisfied that the subdivision will; a) adequately cater for future vehicular traffic, b) include appropriate provision for buses, pedestrians and cyclists,

To assist Council in its deliberations on these broader scale and long term issues, the Developer shall provide: -

• A Structured Plan – drawn to an appropriate scale – showing: • Road hierarchy; • Road carriageway widths; • Stormwater management proposals; • Any physical traffic control devices;


• Connections to existing streets;• Bus routes and bus stops;• Bicycle routes and shared paths;• Pedestrian paths and crossings;• Locations of parking restrictions, special parking zones, on

street parking provision in streets and driveway locations;

• The written comments of the Public Transport Division of theDepartment of Transport, Energy and Infrastructure, of the aboveplan and other documentation provided by the Developer in relationto the design of bus stop parking, the location of bus routes, busstops and shelters, and whether such features are new or existingand are affected by the development works. In the absence ofcomments, it needs to be demonstrated that this agency has beenconsulted.

• A statement and if necessary a plan, listing estimated traffic flowfigures for the subdivision shall be provided. This statement or trafficimpact plan shall be prepared by a professional engineer withrelevant experience.

3.1.2 Prior to Construction • Final construction drawings indicating:

• Road layout and geometry (including traffic managementmeasures and intersections to existing roads),

• Parking and driveway plan (including the location and widthof splays in relation to driveway openings at the boundary ofeach allotment),

• Details of any special driveways – longitudinal gradient lessgreater than 1 in 6 to proposed lots (where necessary),

• Footpath and shared path details,• The extent of any site filling and cutting, including details of

how these will be treated or transitions at the boundaries ofthe site,

• Technical Specifications and Tender Details.• A road pavement design

• Bank Guarantees or bonding arrangements necessary for the proper performance of the works as specified in CouncilsModel Bonding Agreement.

3.1.3 Post Construction Upon completion of construction, and before the issue of a Certificate of Practical Completion by Council, the Developer shall supply the following information to the complete satisfaction of Council;

• An electronic copy of the “As-Constructed” drawings for all roadconstruction works in AutoCAD (.dwg) format. This is to include any


variations to the For Construction plans, including survey results. The drawing must reference the following coordinate system, unless otherwise specified:

Australia Geocentric Datum 1994 (AGD 94) Map Gird Australia Zone 54 (MGA 54)


• A hard copy of the “As Constructed” drawings for all road constructionworks in accordance with specifications above.


• Copies of compaction test results, as follows:• Roads - Four tests per thousand square metres in each layer

(the Council may specify the location from time to time).• Trenches in Roads - One test per each layer for each

material every 30 metres of trenching. One test per trench foreach service trench to each property.

• Certification from the consulting professional engineer that thedevelopment has been constructed in accordance with the approvedplans and specifications

• A twelve (12) month defects liability period will commence from the date of practical completion, during which the developer will need to provide a bank guarantee in accordance with CouncilsModel Bonding Agreement

3.2 Road Hierarchy and Geometry Council has adopted the street classification system detailed in Table 1: Standard Residential Road Design Elements. This table sets out the general minimum standard design elements for the various road classifications.

3.2.1 Street Definitions

• Access Lane

An Access Lane is effectively, in engineering terms, the same as a shared driveway. It is strictly for access to a small number of lots (< 5), and it would be very short (less than 50m). It may also have an on street parking function and its verges could provide opportunities for


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unique streetscape arrangements. Nevertheless, as with all street types, Access Lanes must be designed for serviceability (i.e. the whole street shall be accessible by a normal street sweeper vehicle, refuse collection trucks, delivery vehicles, etc.) Traffic volumes and speeds are very low, (<50 and<15km/h respectively) and accordingly, separate provision for pedestrians and cyclists would not generally be necessary.

Drawing 1 depicts the typical cross section of an Access Lane.

• Access Road

An Access Road is one in which the residential environment is dominant and traffic is completely subservient. The Access Road will generally be accessible by only one entry and exit point (such as a cul-de-sac or dead end street). However, there may be a situation where a connection is provided between two or more adjoining access places. The low speed environment of the Access Road (desirably below 30 km/h) allows pedestrians and cyclists to share the carriageway and may permit carriageway and verge widths to be reduced, however footpaths will usually be required on one side of the road. The number of dwelling units served must be small and should generally not exceed 30, and the maximum effective length of an access road should ensure that its status as a residential place is retained. This length should also ensure that residential convenience is not unduly compromised as a result of speed constraints. Drawing 2 depicts the typical cross section of an Access Road.

• Local Streets

A Local Street is one in which the residential environment is dominant, traffic is subservient, speed and volume are low, (<40 km/h and <1000 vehicles respectively), with a footpath required on at least one side of the road and pedestrian and cycle movements are facilitated. Vehicle speeds are typically controlled by street length and /or alignment. A Local Street shall be designed for serviceability. Drawing 3 depicts a typical cross section of a Local Street

• Collector Road

A Collector Road allows a connection between local streets and the arterial traffic route system referred to in section 3.1.3 of this document. Typically a Collector Road is used to concentrate local traffic to an outlet to the Arterial Traffic Road System, without attracting through traffic


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itself. Its function is to facilitate the convenient and safe movement of residential traffic to and from the Arterial Road System. It is not a typical local street and direct access from single residential allotments to it would only be permitted under strict design guidelines. As an alternative, other large scale residential forms of development may be considered if provision is made for ingress and egress in a forward direction. A Collector Road normally has special characteristics – short length for speed control, and use as a “gateway” to a residential area. It will often be designated as a bus route. It will also have wide verges for noise abatement and to accommodate pedestrian or shared paths on both sides of the road. There should be no pedestrian movement across it other than at controlled crossing locations. Drawing 4 sets out the minimum cross section requirements for a Collector Road. An alternative cross section may comprise a divided street with pavement widths each side of a central median of 5m to accommodate one traffic lane and emergency parking on each carriageway.

3.2.2 Street Pattern In a new subdivision, the various street types defined above shall be arranged in a logical pattern relative to their respective hierarchy in recognition of the inter-relationship between the various residential types in such a manner as to eliminate undesirable through traffic and restrict vehicle speeds. It also rationalises the connections to the Arterial Road network. The Structure Plan submitted by the Developer shall clearly show the street hierarchy (it shall label each street according to its status in the network), and all proposed traffic control devices, supported by a Traffic Impact Statement. Where the Developer proposes to use cross sections that differ from those in Drawing 1 to 4, full details shall also be presented. Council will consider the merit of each variation having regard to traffic, services, and planning elements. The Structure Plan shall also show the bus routes, pedestrian crossings, and those Collector Roads on which formal bicycle lanes are to be marked.

3.2.3 Arterial Traffic Routes The scope of this document does not include Sub-Arterial Roads, Arterial Roads, Freeways or Expressways. For advice in respect to the potential impact of development on these Major Roads it will be necessary to hold discussions with the Department of Transport, Energy and Infrastructure.


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3.2.4 Access Lanes or Roads within Community Title Land Council has not separately classified those Access Lanes or Access Roads designed to provide access to land developed under the provisions of the Community Title Act 1996. However, Developers should be aware that where infrastructure assets are developed which require vehicular and pedestrian access to Community Land, including garbage trucks, furniture removal trucks, fire control vehicles; Councils engineering design standards and requirements that apply to infrastructure required for land developed under Torrens Title will be applied to the community title division. Where the Developer proposes to use cross sections that differ from those in Drawings 1 to 4, full details shall be presented. Council will consider the merit of each variation having regard to traffic, services, and planning elements.

3.2.5 Design Speeds

Subdivision layout and the road network should be designed to achieve the design speeds as nominated in Table 1: Standard Residential Road Design Elements. The subdivision layout shall be the primary means of limiting vehicle speeds in residential areas. In order to restrict speeds, the desirable maximum length of road between slow points should be 120m, with an absolute maximum length of 150m. Where necessary to supplement the limits on vehicle speeds inherent in the subdivision layout, use shall be made of appropriate traffic control devices. These devices must comply wholly with the “Code of Technical Requirements for the Legal Use of Traffic Control Devices in South Australia”.

3.2.6 Carriageways and Road Reserve Widths All carriageways shall be able to accommodate service and emergency vehicles at all times, accounting for the likely demand on roads including car parking, buses, commercial vehicles and traffic volumes. Minimum carriageway widths for all road classifications shall be as nominated in Table 1: Standard Residential Road Design Elements. All road reserves shall be able to accommodate the above objectives for the street carriageway, plus the requirements for footpaths, landscaping, drainage, underground services, street lighting columns, and safe vehicle entry and egress from every individual property. The street network, including all intersections and T-junctions, must be able to accommodate the AUSTROADS 12.5 metre Single Unit Vehicle without the need for the mounting of kerbs by leading or trailing wheels, except where


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• A Cul-De-Sac greater than 50 metres in length shall be designed to accommodate a U-turn by the ACCO-F series garbage truck.

• A Cul-De-Sac less than 50 metres in length shall be designed to accommodate a three-point turn by the B99 passenger vehicle only (refer AS2890.1).

3.2.7 Local Widening The minimum carriageway and reserve widths shall be widened locally and/or generally as required to accommodate traffic control devices such as median islands, wombat crossings, blisters etc, as well as providing for buses and associated public transport infrastructure. For example, a minimum lane width of 5.7m is required from the kerb face at Bus Stops. The need for such devices and associated reserve widening will be determined in the Traffic Impact Statement for the subdivision. The carriageway width of access lanes, access places and local streets shall be widened by 0.8 metres on all horizontal curves where the centre-line radius is less than 50 metres, and the total angle of deflection exceeds 20o. The widening shall extend for the full length of the curve plus 8 metres into the straight at either end of the curve, and it shall be applied equally either side of the street centre-line. A transition taper of length 8 metres shall be provided at each end of the widened section to transition to the normal street width. This allows for the swept path of larger vehicles negotiating such curves, and/or to enable the provision of a rumble bar median if deemed necessary by the Council.

3.2.8 Junctions All T junction pavements must intersect at 90 degrees and the straight leg of the T must be at least 8 metres long.

3.3 Road Construction Standards All works shall conform to the requirements of a specification prepared specifically for the works under consideration, by a reputable professional engineer. Where relevant, any products used shall be installed in accordance with the manufacturer’s instructions. The minimum standard for road construction within the area of the District Council of Mount Barker is demonstrated in Drawing 6 Typical Minimum Road Construction Cross Section.

3.3.1 Pavement Design


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Road pavements are to be designed and constructed in accordance with:

• AUSTROADS - A Guide to the Structural Design of Road Pavements AP-17/92; or if appropriate

• AUSTROADS - A Guide to the Design of New Pavements for Light Traffic, APRG-Rpt-21.

Design shall cater for a the likely construction traffic associated with development of future civil works stages and all houses in the subdivision, bus traffic; refuse collection and recycling vehicles, and emergency services vehicles. Pavement design will be based on the CBR testing of actual sub-grade soils, but must also take into account soil reactivity, and any long term issues related to the development itself (such as loss of sub-grade strength due to changed water table levels). All roads and parking bays shall be surfaced with a minimum of 25mm of AC10 Asphaltic Concrete. Major intersections, as nominated by Council and all roundabouts shall be sealed with a minimum of 40mm of AC14 Asphaltic Concrete. Use of polymer modified binders in Asphaltic Concrete, where appropriate, is encouraged.

3.3.2 Kerb and Watertable Concrete kerb and watertable shall be provided on both sides of all roads except as otherwise approved by Council. All concrete kerb and watertable provided will be of a rollover mountable type except on Collector routes, bus routes and along the edges of reserves where upright barrier kerb and watertable should be used. Kerbs shall be provided in accordance with Drawing 7: Typical Standard Kerb and Channel Details. A galvanised steel kerb adaptor shall be provided per each allotment to facilitate the disposal of stormwater from the property. Each adaptor shall be cast into the kerb on the downstream side of the allotment situated approximately 1 metre from the alignment of the adjoining property boundary. Kerb Ramps shall be provided at every corner radius where footpaths are proposed. The location is to be approved by the Council. Kerb ramps shall comply with the various AS1428 standards. Warning Tactile Ground Surface Indicators (TGSI) shall be provided within kerb ramps. The ramps shall have a maximum grade of 1:8, as allowed in AS1428.4. Kerb ramps shall be provided in accordance with Drawing 9: Typical Standard Kerb Ramp Details.

3.3.3 Road Materials


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Roads shall be constructed using material conforming to the requirements of the Transport SA, Pavement Material (PM) specifications for quarry and recycled materials. Base shall comply with PM 1 / 20QG. Sub-base shall comply with PM 2 / 20QG, PM 2 / 40QG, or PM 2 / 20CR. A pavement design is to be approved by Council prior to construction.

3.3.4 Concrete

All concrete works shall comply with the requirements of AS 3600 in all particulars. Ready mixed concrete shall comply with AS 1379. Reinforcing bar and mesh and hard drawn steel wire shall comply with AS1302, AS 1304 and AS 1303 respectively. Concrete shall have a maximum aggregate size of 20mm. The following grades of concrete shall be used for works in new subdivisions for the following applications

• Kerb and gutter, spoon drains, etc. - N25 • Drainage pits and structures - N32 • Concrete paths, paving (not road pavements) - N25 • Other non structural concrete - N20

All concrete work shall be designed and constructed so that long term shrinkage cracking occurs at controlled joints and locations. Appropriate provision shall be made for thermal expansion. Cover to reinforcing steel, surface finishes, and curing of concrete shall all comply with the respective requirements of AS 3600.

3.3.5 Block Paving

Concrete paving units shall comply with MA 20 “Specification for Concrete Segmental Paving Units” published by the Concrete Association of Australia. They shall be 80mm thick (trafficable areas) or 60mm thick (footpaths), Strength Grade N45 have a minimum abrasion resistance of 1.2 at 28 days, interlocking in design, and of the colour and shape as nominated by Council. Where Council approval is given for the construction of Concrete Segmental Paving Units within road pavements they shall be 80mm thick, embedded in a 20mm thick layer of Paving Bedding Sand which shall form part of a road pavement with a minimum thickness of 300mm, subject to appropriate design considerations and unless otherwise specified. Where Council approval is given to construct Concrete Segmental Paving Units on footpaths they shall be 60mm thick on footpaths in residential areas (80mm thick in driveways), and 80mm thick in both the path and in driveways in non residential areas. Pavers will be laid on a minimum thickness of 75mm


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of compacted quarry rubble free of clay and deleterious materials, and embedded into a 20mm layer of Paving Bedding Sand. Paving bedding sand shall be an approved washed or unwashed pit, river or quarry material. It shall be free of pebbles, clay lumps, organic matter or deleterious soluble salts or other contaminants likely to cause efflorescence or lead to reduced skid resistance. It shall comply with the Transport SA standard specification for sand - Type A (PM 61). The material used for filling between pavers shall be an approved proprietary sand based product, which may be broomed and vibrated into place but which ultimately provides an effective, flexible, bound sealant that will resist unintended extraction by vacuum street cleaning equipment. The finished levels of the block paving shall be to an even and plane surface to within +3 mm, -0 mm from the design levels shown on the drawings. Particular care shall be taken to ensure that the levels of adjoining units correspond and that the units along the edges are between 5 and 10mm above the lip of the adjacent concrete gutter to provide proper drainage of the pavement. The skid resistance of the final block paved surface shall be at least equal to that of the adjoining asphalt surfaces.

3.3.6 Hold Points for Council Inspection

Works shall be held, and the Council notified for the purpose of inspection, at the following stages during the course of road and drainage construction:

• After preparation of the sub-grade, for proof rolling, prior to application of sub-base.

• After preparation of the sub-base, for proof rolling, prior to application of base.

• After the construction of drains and drain structures, prior to the backfilling of trenches.

• After final base preparation, prior to sealing and notification of the proposed sealing date.

3.4 Path Construction Standards The existing footpath network shall not be unduly compromised by new development, but rather new development should seek to complete or enhance the network by developing efficient walking links, particularly to adjacent key destinations such as schools, shops and bus stops.


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In General, the requirements and qualities prescribed in AS 1428.2 for “Circulation Spaces” (section 6) and, where applicable, “Continuous Accessible Path of Travel” (section 7) is expected along all paths. Footpaths are to be provided along the road network in accordance with Table 1: Standard Residential Road Design Elements. Footpaths shall be constructed in a manner consistent with adjoining footpath links and consideration shown for the existing streetscape. However, unless otherwise approved by Council all footpaths shall be constructed in concrete with a minimum width of 1.5 metres and a thickness of 100mm in accordance with Drawing 8: Typical Standard Footpath and Verge Details. The width of footpaths as determined above shall not be obstructed by street furniture, lighting poles, bus shelters, street trees etc.

3.4.1 Shared Paths Bicycle paths and shared paths shall be made in accordance with AUSTROADS Part 14 (1999). Shared paths shall:

• be 3.0 metres wide unless a narrower path can be justified under the criteria outlined in AUSTROADS Part 14;

• have a minimum radius of 30 metres along mid-length sections, unless demonstrably impractical; and,

Where the shared path is identified to be contained within the road reserve, the road reserve width shall be increased from that required as identified in Table 1: Standard Residential Road Design Elements, to incorporate the shared path. The exclusive use of paths for cyclists within the footpath reserve is discouraged. Public lighting may be required along shared paths which form a linear link.

3.4.2 Provision for Cyclists New development shall incorporate and support the existing bicycle route network, and any other relevant proposals or requirements of the District Council of Mount Barker Local Area Bike Plan. Bicycle lanes, or an approved equivalent facility, shall be provided where the kerbside traffic volume exceeds or is likely to exceed 1500 vehicles per day, or when the daily two-way traffic volume exceeds or is likely to exceed 3000 vehicles per day.


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The needs of Cyclists shall be considered in relation to the design of traffic management devices and at intersections and shall be accommodated where relevant. Cycle lanes on carriageways will be confined to Collector Roads where the minimum carriageway width shall be 13.4 metres. Cycle lanes on carriageways will be a minimum of 1.2 metres in width and signed and line marked in accordance with the provisions of AUSTROADS Part 14 (1999).

3.4.3 Connection of Off Road Paths to Roads

Path ‘Terminal’ treatments including kerb ramps shall have regard for the details in Section 6.7.3 of AUSTROADS Part 14. Bollards and holding rails shall not be located centrally in shared paths. However,

• reasonable steps shall be made to prevent motor vehicles from accessing paths; and

• provision shall be made to provide for service vehicle access to such paths.

3.4.4 Verges Street verges are defined herein as those areas of the road reserve between the kerb and gutter (or edge of bitumen in the event that there is no kerb) and the property boundary. All verges shall slope down from the property boundary to the top of kerb level. The maximum slope shall be 5%, and the minimum slope shall be 2%. For properties which fall away from the road reserve, the verge shall have a minimum fall from the property boundary to the adjacent kerb of 2%. Any resulting differences between the finished surface and natural surface at the property alignment shall be handled by battering up or down to the natural surface level, as required, and within the proposed allotments or reserves (external to the road reserve). Such batters shall have sufficiently flat slopes so that:

• they can be reasonably maintained, and; • they will have long term stability having regard to the topographical

form and geotechnical properties of the site. All verges shall be excavated to a depth of 75mm below the surface of the footpath and the top of kerb and backfilled with Council approved topsoil to provide a growing medium with a raked finish and containing no material with a particle size greater than 20mm. All disturbed areas within the road reserve shall be hydromulched, turfed or seeded to the satisfaction of Council.


Drawing 8 defines a Typical Standard Footpath and Verge Details.

The street verge shall be kept clear of all obstructions, for example allotment retaining walls, in accordance with Councils Footpaths Policy which is currently being developed.

3.4.5 Stormwater Where footpaths are proposed to be constructed a 100mm diameter “Sewer Grade” UPVC stormwater sleeve shall be provided under the footpath adjacent to each respective kerb adaptor to facilitate the disposal of stormwater from the property, generally in accordance with Drawing 8 Typical Standard Footpath and Verge Details.

The installation of the pipe should ensure a minimum fall of 1 in 100 towards the kerb.

3.4.6 Driveways

The horizontal design or layout of all driveways shall be in accordance with AS 2890.1 and B85 Template Swept Path with 300mm minimum clearance each side.

Where within the subdivision the final surface level at the edge of the road reserve will be substantially different to the natural surface level, Council may require the Developer to demonstrate how vehicular access with longitudinal gradient no greater than 1 in 6 will be provided to each and every lot so affected by the planned earthworks. This will need to be demonstrated on a long section identifying individual transitions and be designed in accordance with AS2890.1 2004.

Driveways providing access and egress to allotments on the low side of the road shall be designed to ensure that there is a sufficient vehicle standing area within the property to provide adequate visibility for motorists when exiting the property.

All single battleaxe allotments shall be provided with a sealed driveway, a minimum width of 3m, extending the full length of the access leg of the allotment designed to Council satisfaction. Conduits for internal allotment services are to be provided adjacent to, and for the whole full length, of the driveway. Any works on Council land is to be submitted on an ‘Approval to Work on Council Land’ form and is to be approved by Council prior to construction.

The provision for vehicle crossovers and inverts, and the reinstatement of existing crossovers not required by the development shall be carried out by the Developer to the satisfaction of Council.


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In any development where there is an existing upright kerb and watertable the Developer shall remove the affected kerb and construct a new crossover to the satisfaction of Council. The thickness of concrete footpaths adjacent to all development sites with a planned commercial or industrial land use will be 150mm thick with F82 steel reinforcing mesh centrally placed. The construction and finish of driveways between the kerb and the property boundary shall be consistent with the existing footpath and sympathetic to the existing streetscape. The design and finish of driveways are to be approved by Council prior to construction, and be generally in accordance with Standard Drawing 11.

3.5 Traffic Management

The subdivisional layout shall be the primary means of limiting vehicle speeds in residential streets. Where necessary to supplement the limits on vehicle speeds inherent in the subdivision layout, use shall be made of appropriate traffic control devices. These devices must comply wholly with the “Code of Technical Requirements for the Legal Use of Traffic Control Devices in South Australia”. Subdivision layout and the street design should be designed to limit the maximum speeds to those defined in Table 1: Standard Residential Road Design Elements

3.5.1 Design of Traffic Management Proposals The Developer and/or their professional engineer are encouraged to liaise with Council staff at an early stage in the development of the structure plan in relation to traffic issues. It is important that the plan provide appropriate space for any necessary traffic management devices and for logical intersection layouts. Where traffic control devices are proposed for which approval of the Commissioner of Highways is required, it is desirable that the proponents of the development and their traffic engineering advisors meet with the Department of Transport, Energy and Infrastructure.

Designs of traffic management devices and a traffic impact statement (refer to Minister for Transport and Urban Planning Notice to Council – Traffic Control Devices and Road Events under the Road Traffic Act 1961) should be submitted to Council for approval in principle prior to the preparation of construction drawings. The Traffic Impact Statement shall be prepared by a professional engineer with relevant experience. In some instances the Council is reliant on the approval of the Commissioner of Highways.


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A statement and if necessary a plan, listing estimated traffic flow figures for the development shall be provided. This Traffic Impact Statement shall be prepared by a professional engineer with relevant experience.

3.5.2 Roundabouts

Roundabouts shall be designed and constructed to comply with the requirements of AUSTROADS publication “Guide to Traffic Engineering and Practice, Part 6, Roundabouts”. Roundabouts on residential streets shall also be designed to comply with the standard design envelop provisions of the Code of Technical Requirements for the Legal Use of Traffic Control Devices. Vehicular access to individual lots shall not be to or from the circulating roadway of a roundabout. Landscaping of the central roundabout island shall not be of such nature and height as to compromise the sight distance requirements for vehicles set out in the above standards. Roundabout islands, splitter islands, other small traffic islands and those sections of medians that are required to have “hard” tops (for reasons such as elimination of maintenance, pedestrian usage, etc.) shall be provided with stencilled concrete, “flagstone” pattern, in a colour nominated by the Council, 150mm thick, reinforced with RF82 mesh with 40mm of top cover. Alternative treatments are to be presented to Council for approval. The maximum gradient for the construction of roundabouts shall be 10%, in accordance with the Code of Technical Requirements for the Legal Use of Traffic Control Devices.

3.5.3 Cul-De-Sac Turning areas Cul-De-Sac and turning areas shall be used in terminating or dead end streets and shall be designed to comply with the requirements of AUSTROADS publication “Guide to Traffic Engineering and Practice”. Further, Councils minimum requirements are defined in Drawing 6: Typical Terminating Road Turning Provisions.

3.5.4 Other Traffic Management Devices Other traffic management devices such as Entry Thresholds, Slow Points, Speed Humps, Chicanes, and Splinter Islands should be designed in accordance with the requirements of the AUSROADS Publication “Guide to Traffic Engineering Practice - Part 10 Local Area Traffic Management” and are to be approved by Council. Devices other than at intersections should be located so as to be generally consistent with streetscape requirements, street lighting, drainage pits and driveway locations.


3.5.5 Other Traffic Considerations

In addition to the design requirements for the traffic management devices indicated above the following considerations must also be taken into account;

• Emergency vehicles must be able to access all residences andproperties

• Buses should be able to pass without mounting kerbs and withminimum discomfort to passengers

• The passage of larger vehicles must be provided for withoutcompromising the principle function of the device.

• In newly developing areas building construction traffic must becatered for.

• Speed reduction can be assisted by creating a visual environmentconducive to lower speeds by “segmenting” streets into relatively short lengths using appropriate traffic control devices, streetscapes or street alignment.

• Adequate critical sight distances, including those required forpedestrians and cyclists.

• Night time visibility of street features and traffic management devices

3.5.6 Road Signs

All traffic signs shall be installed in accordance with the requirements AS 1742 Manual of Uniform Traffic Control Devices. The plans depicting road signage arrangements (for placement on both new and existing roads) shall be approved by Council before installation.

3.5.7 Pavement Marking

All pavement marking, rumble bar medians, etc. shall comply with the requirements of AS 1742 Manual of Uniform Traffic Control Devices, the Code of Technical Requirements for the Legal Use of Traffic Control Devices, and Transport SA Standard Specifications.

Kerbing for median strips and the central and splitter islands of roundabouts etc shall also be painted as set out in those publications.

3.5.8 Street Names All streets are to be named in accordance with Councils Road Naming Policy 15 May 2006 and Developers should consult with Council about road names during the concept design consultation stage. Street name signs shall be provided at the threshold of each new road and opposite T junctions.

Street name signs shall be installed in accordance with the following provisions,


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• The sign will be mounted on a 3000mm long, 90mm diameter galvanised steel post, the bottom 600mm of which will be inserted into a galvanised steel sleeve suitably anchored into the ground.

• The sign shall be made of extruded aluminium, 830mm long, and 150mm high with the end cut in a taper as determined by standard manufacture.

• Where two lines of text is required e.g. “No Through Road’ following the street name the sign will be 830mm long, 200mm high with the end cut in a taper as determined by standard manufacture.

• The sign shall include the Council emblem. • The sign shall be mounted to the post using aluminium brackets with

anti vandal bolts. • Street name lettering shall be black 100mm high centrally located on

the sign over a white reflective background. (note; where two lines of text are required i.e. “No Through Road” the second line of text will be 50mm high

3.5.9 Car Parking

On-street car parking provision for residential developments shall be at least point five (0.5) spaces per allotment in accordance with provisions of the Development Plan. Estimates of the number of car park spaces provided by the design proposal shall,

• not include bays which intrude upon the driveway swept path requirements, and

• have regard to Australian Road Rule 208 in particular. In general terms, Rule 208 requires that a vehicle cannot be parked where there would be less than 3.0 metres (lane width) available to moving traffic, i.e. between a parked vehicle and a median, or between two parked vehicles. The on-street car park for any given allotment shall be no further than 20m from the front boundary of that allotment.

3.5.10 Provision for Buses Collector Roads should be designed with the intention that they may be utilised as bus routes. Appropriate provision shall be made for buses and associated or affected infrastructure, as determined in conjunction with the Public Transport Division of the Department of Transport, Energy and Infrastructure. This provision may be in any one or more of the following forms,

• adjustments to the alignment or local width of the road reserve; • the provision of inset bus stops; • paved areas at bus stops and related surface indicators for the

vision impaired;


• bus shelters; and,• appropriate lighting.

Bus stops shall be inset in all locations where the half carriageway width (kerb face to road centreline or kerb face to the front of the median kerb on divided carriageways) is less than 5.7m. The extent of inset shall be such as to provide this minimum half carriageway width, over the full length of a stopped bus. The kerb line shall be appropriately shaped for ease of bus entry to, and departure from, the stop.

All work at bus stops shall comply with the requirements of the Disability Discrimination Act, and meet the needs of Public Transport Division of the Department of Transport, Energy and Infrastructure and Council.

Developers and their consultants should be mindful that Local Streets and Access Roads may be used regularly by bus traffic, such as a community bus service. Such streets and all associated intersections must be designed to cater for accessibility by such vehicles, having regard to the necessary on street parking requirements implicit in the local subdivision layout.

3.5.11 Public and Street Lighting

Public lighting is to be provided in all streets and roads to the boundary of the development. Public lighting shall also be required in reserves over 1hectare in size or where access to structures within the park is a feature, or paths within the park form a linear link.

The level and standard of lighting shall be determined according to SAA codes and AS/NZS 1158 Series to reflect Councils policy of pursuing lighting standards that are energy efficient and environmentally sustainable.

The Developer shall be responsible for liaison with ETSA Utilities in respect to both Public Lighting and for the provision of an underground electricity service to all new lots in the development.

Trenches in road reserves shall be backfilled in accordance with ETSA Utilities Standard Specifications, so as to avoid future settlement of new road and footpath surfaces. The pavement and surface of trenches in existing road pavements shall be treated in accordance with the current version of the Transport SA Standard Specification for “Excavation and Reinstatement of Road Pavement”.

Street Light Columns will be of a type approved by Council during the design consultation stage. Column types may vary depending on the hierarchy classification for the road, however all luminaires will be either metal halide or compact florescent.

Street Light Columns are to be located in the verge/nature strip area of the footpath a minimum distance of 600mm behind the face of the kerb and


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positioned to avoid close proximity to driveway entries or future street tree canopies.


SECTION 4

STORMWATER DRAINAGE


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4 STORMWATER DRAINAGE Stormwater management forms an integral part of any development. The objectives of stormwater management is to

• Collect stormwater from a catchment and convey to its receiving waters with minimal nuisance, danger, or damage

• Prevent flooding of public and private property both within the catchment and downstream

• To provide safety for traffic and pedestrians by controlling frequent stormwater flows

The stormwater management scheme for all developments is to incorporate both a minor and major system. The major system shall provide a safe well defined overland flow path for rare runoff events (Q100) while the minor system shall be capable of controlling flows from frequent runoff events (Q10). Minor system flows are to be conveyed underground unless approved otherwise by Council. New building development or redevelopment generally increases the stormwater runoff from the site due to the increase in impervious areas such as roofs and pavement. Direct discharge of this increased runoff into the existing stormwater drainage system may increase the risk of flooding downstream properties and may have adverse effects on the natural watercourses and downstream drainage infrastructure. External drainage head works may need to be undertaken to improve the downstream system to cater for these increased flows. Council therefore requires Developers to incorporate appropriate stormwater management techniques and strategies to:

• detain and utilize the increased stormwater runoff on the site; and, • maintain the volume and rate of flow of the runoff to those levels

existing prior to development.


4.1.1 Prior to Development Approval Prior to Council issuing development approval the Developer will provide Council with a Concept Stormwater Management Plan for the whole development showing the locations and sizes of any stormwater retention/detention basins, delineation and areas of all sub-catchments, minor stormwater flow paths (minQ10), and flow path for the major event (Q100). If in the vicinity of a watercourse, a flood study may also be required.


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For assessment and approval of the stormwater drainage aspects of proposed developments, site plans submitted as part of a Development Application should show the following:

• Existing site levels or contours with adjacent road, kerb and drainage invert levels.

• A flooding risk report and assessment for those properties near a watercourse or within an identified flood zone.

• Minimum finished floor levels relative to estimated flood levels. • Design levels and grading of pavement and driveway areas. • Layout of the proposed piped drainage system and details of the

connection to Council’s drainage system. • The location, positioning and type of proposed stormwater pollution

prevention devices. Where on-site detention measures are to be employed, in addition to the above, engineering plans should show details to the satisfaction of Council of the detention basin, offline storage tanks, microponding etc. together with stormwater drainage calculations. Engineering design plans and stormwater calculations for on-site stormwater detention should be documented by a professional consulting engineer.

4.1.2 Prior to construction: The Developer will provide Council with a Master Stormwater Management Plan and construction design drawings for approval including full details of the approved stormwater drainage system for the site, any works external to the site, the location and allocation of any drainage easements, and details of any temporary works, drains or banks proposed as part of the project. The Master Stormwater Management Plan will address the following issues;

• A detailed assessment of the impact of the proposed development on both the internal and external stormwater drainage network; and preparation of a flood assessment report.

• How issues raised in the flood assessment report are to be addressed.

• What stormwater measures are proposed to protect the site from a major storm event (ARI = 100 years) as well as minor storm events (ARI = 10 years).

• An assessment of the impact by the proposed development on properties and infrastructure that are affected by the flood plain.

• The strategies to be used to dispose of the stormwater from the development site in an effective manner.

• The proposals and strategies to be used to control the entry of litter and pollution from the site into the stormwater network.

• The proposals and strategies to be used to control and prevent the entry of litter and pollution from the site into ponding and detention basins


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• The measures to be used to maintain stormwater runoff from the site at levels no greater than the runoff levels that existed prior to development.

• The measures to be used to control erosion and sedimentation during construction.

• The measures to be used that will encourage on site water harvesting.

• Any on site constraints such as trees, services, or structures that may affect the viability of the drainage or on site detention system.

• Where any permanent water bodies are proposed to form part of the stormwater management plan, the predictive modelling of the impacts of the proposed basin on both groundwater quality and water table levels, AND the geotechnical data upon which the modelling is based.

• A report on the impact that any proposed permanent water body will have on the local environment, the flora and fauna, the recreational opportunities and the measures proposed to protect public safety.

• All works proposed within creeks and watercourses or lands under the control of other Authorities must have the approval from the relevant authority prior to commencing work. Evidence of such shall be provided with the design submission.

4.1.3 Post construction As soon as practical after construction of the stormwater drainage system and the implementation of the stormwater management plan, and before the issue of a certificate of practical completion by Council, the Developer shall supply;

• An electronic copy of the “As-Constructed” drawings for all drainage and stormwater works in AutoCAD (.dwg) format. This is to include any variations to the For Construction plans, including survey results. The drawing must reference the following coordinate system, unless otherwise specified:

Australia Geocentric Datum 1994 (AGD 94)

Map Gird Australia Zone 54 (MGA 54)


• A hard copy of the “As Constructed” drawings for all drainage and

stormwater works in accordance with specifications above.

• a schedule of the infrastructure that will become the property of Council in tabular Excel format to the satisfaction of Council;


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• copies of compaction tests for all trenches in roads (one test per layer for each backfill material for each 30 metres of trenching)

• CCTV Footage of internal inspection of all stormwater pipe networks

in DVD format

• Certification by a professional civil engineer that the works were carried out in accordance with the approved plans and specifications.

4.2 Detention Detention or retention storage of stormwater on the site is an effective method of limiting peak flow rates and holding the large volumes of runoff generated by new developments before release into the existing drainage system. In this way downstream flow rates can be kept within the capacities of the existing system and little or no upgrading of the downstream drainage infrastructure will be necessary. The location, size and type of development will influence the on-site strategies and techniques that may be employed, and Developers are encouraged to consult Council in the planning stage for advice on these aspects of stormwater management. Council require on site detention of stormwater to ensure that runoff does not exceed pre-development rates. However, if the applicant can demonstrate that the existing catchment has an adequate drainage system detention may not be required or could be minimised. In order to establish this requirement the applicant will need to provide a study prepared by a suitably qualified professional civil engineer which;

• Analyses the whole catchment and demonstrates that the capacity of the existing stormwater drainage system is adequate for post-development runoff and allows for increase development of other sites within the catchment;

• Demonstrates that there is no increase in the incidence of flooding downstream; and,

• That there will be no impact on the water quality downstream, or any increase in erosion.

4.2.1 Detention Basins

Typically an on-site detention basin, lagoon or pond takes the form of a small flood control dam located in the main overland flow path of the development usually at the lowest point. The main components of a detention basin are an embankment of sufficient height and length to contain the required volume of runoff, a low level outlet and a spillway for overflows. To enhance the appearance of these areas, detention basins are often landscaped and


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shaped, and subject to Councils conditions outlined above may be designed to hold a permanent volume of water in the form of a lagoon or pond. It should be noted that the areas of land which are used or intended to be used for the permanent retention of stormwater should not be considered as part of any open space contribution, as per Councils Development Plan. Land proposed to solely serve a stormwater management purpose will not be included within the Developers 12.5% allocation of land for public open space unless it can be demonstrated to the satisfaction of Council that the area affected by the proposal, is environmentally sustainable, ecologically friendly to the local flora and fauna, and offers a genuine and safe recreational opportunity to the community. If the Council is satisfied that the permanent water body proposed by the Developer satisfies its environmental, ecological and recreational objectives then up to a maximum of 50% of the affected area may be included in the area of land to be counted towards the 12.5% open space requirement. Detention basins are most often used on larger types of development to accommodate large increase in runoff, and generally include substantial landscaped areas.

4.2.1.1 Wetlands Where a wetland or wet retention basin is proposed as part of a subdivision, the Developer may also need to undertake water quality testing (including salinity) and determine the extent of variation in water table level over a full 12 month period.

4.2.2 Micro-Ponding This method of on-site detention of stormwater may be employed on sites with large paved areas such as car parks, hard standing areas, courtyards, tennis courts and the like where temporary ponding of stormwater can be tolerated. The hydraulic principles of a micropond are similar to those of detention basin, on a smaller scale. A micropond requires similar components, an embankment to retain the volume of runoff (usually kerbing), a low level outlet (from a stormwater pit) and an overflow spillway with overflows directed away from buildings and out to the street. These methods of on-site detention may be used in conjunction with one another or singularly depending on the space available, site layout and development type. The measures employed will need to be individually designed for each application. Developers are required to consult a professional civil engineer to determine the appropriate method of on-site stormwater management. Engineering


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design plans, stormwater calculations, and where necessary, output from computer modelling of the drainage system should be submitted to Council for assessment and approval.

4.2.3 Off-line Storage Temporary off-line storage of stormwater runoff in the form of underground tanks or a run of large diameter pipe may be used to hold the volume of runoff and to reduce peak discharge flow rates. Off-line storage in underground tanks requires a site with sufficient grade to allow the low flow outlet from the underground tank to freely drain to the downstream system, and is usually employed in highly built up areas where space is at a premium.

4.3 External Drainage Headworks

If on-site detention of stormwater is not provided and runoff from the developed site is connected into Council’s drainage system, the downstream infrastructure may need to be upgraded to cater for the increase in peak flows and the greater volume of runoff. The type of development, its location within the particular sub-catchment and the present state of the downstream drainage facilities will determine the extent of external drainage headworks required. In lieu of providing on-site detention measures, the Developer may choose to contribute to part of the external drainage headworks in proportion to the increased runoff from the developed site. If the Developer decides to pursue the option to contribute to the cost of providing the necessary head works external to the development in lieu of on site stormwater detention the Developer, in consultation with the Council, will be responsible for the cost of carrying out of the engineering design work necessary to determine the extent of work and estimated costs to determine the amount of contribution applicable.

4.4 Drainage Design The drainage system should be designed in accordance with the requirements of the Institution of Engineers, Australia publication, “Australian Rainfall and Runoff, a guide to flood estimation Volume 1 Revised Edition 1987” and drainage should be in accordance with the National Plumbing and Drainage Code, part 3 Stormwater Drainage Australian Standard 3500.3 1990. The design should cater for the major storm event (ARI = 100YRS) as well as minor storm events (ARI = 10 YRS). The drainage system should be designed to cater for the major storm event (Q100) as well as minor storm events (Q10). The major drainage system should utilize natural overland flow paths and watercourses incorporated as drainage


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reserves together with the road reserves so that major storm flows drain to the major channel of the particular catchment. The flow path for major storm flows (1 in 100 year ARI) must be contained within reserves or the road reserve and not enter into private property unless within a designated easement. Where low points (sags) occur in roadways or cul-de-sacs drain to the end then an overland flow path to cater for the 1 in 100 year event must be provided on public land or confined to a drainage easement to accommodate the flow.

4.4.1 Connection and Integration to Councils Drainage Network The piped system for minor flows should be connected to Council’s drainage system via a junction box on the existing main trunk drain or discharged to the main open channel via an appropriate headwall.

4.5 Drainage Easements

Where drainage easements are required to facilitate future access to the drainage network the Developer will take the measures necessary to ensure that the drainage reserve/easement/allotment be vested in Council ownership. Easements shall be provided over all drains in any allotments not being a road reserve. Unless otherwise required by Council such easements shall be Three (3) metres wide when the easement contains only a single drain and at least Four (4) metres wide when the easement contains more than one drain.

4.6 Residential Development Drainage Requirements Where properties drain naturally to the street, a galvanised steel kerb adaptor shall be provided per allotment. Such adaptors shall be cast into the kerb on the downstream side of the allotment, the location of which shall be within approximately one metre from the alignment of adjoining property boundaries. For battleaxe allotments with drainage to the road, a 300mm x 300mm grated inlet pit/junction box is to be located at the lowest corner of the allotment and a 100mm minimum diameter pipe shall be installed within the allotment access or within an easement. Where footpaths are to be provided, a 100mm diameter UPVC sewer class sleeve shall be provided under the path adjacent to each respective kerb adaptor to facilitate the connection of stormwater pipes from the property to the kerb at a minimum grade of 1 in 100 flowing towards the kerb. This is to be provided in accordance with Drawing 8 Typical Standard Footpath and Verge Details.


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Where allotments grade away from the street frontage rear of allotment drainage shall be provided. If not established, an easement may be required. A stormwater connection point shall be provided for each allotment. Where the allotment grades to the rear and there is no rear of allotment drainage provided, a drainage easement will need to be obtained for the outfall pipe drain through the rear property for connection to the street watertable. Such drains shall be designed to accommodate stormwater from the entirety of the respective allotments in the occurrence of an ARI = 1 in 10 year storm event The minimum diameter of the pipe shall be 100mm and each allotment shall be provided with a 300mm x 300mm grated inlet pit/junction box, located at the lowest corner of each respective allotment. Rear of allotment stormwater drainage shall also be provided where the allotments back onto reserves. Detention may be required and should be developed in accordance with Section 4.3.

4.7 Residential Unit Development Drainage requirements The requirements for the connection to Councils drainage system for developments of more than two residential units will be similar to the requirements for Industrial/Commercial development connections. For developments of two units or less stormwater may be discharged directly to the street watertable as for a single residential dwelling. Where the allotment grades to the rear and there is no rear of allotment drainage provided, a drainage easement may need to be obtained for the outfall pipe drain through the rear of the property to the street drainage system.

4.8 Drainage Requirements for Industrial and Commercial Development

Stormwater discharge from industrial/commercial properties (including car parking areas) must pass through an appropriate sized Stormwater By-Pass Interceptor Pit (Stormceptor) located within the property to remove grit and contaminants prior to entering the stormwater system via a minimum 300dia RC pipe connection to the piped drainage system.


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The outfall pipe drain should be connected to Councils drain, subject to Council approval, by breaking into an existing junction box or side entry pit or by constructing a new junction box on the existing drain. In some cases the outfall may discharge to an open channel or natural watercourse via a headwall with appropriate scour protection. Construction methods, workmanship and materials should comply with Council’s standard specifications and detail drawings. Where the allotment grades to the rear and there is no rear of allotment drainage provided, a drainage easement may need to be obtained for the outfall pipe to drain through the rear of the property to the street drainage system.

4.9 Minimum Floor Levels For all building developments the finished floor level should be a minimum of 300mm above the top of kerb of the street fronting the development. In general, pavement areas and driveways should grade away from the buildings and out to the street at a minimum grade of 0.2% to provide an overland flow path for the major storm flows. Where this cannot be achieved because the allotment grades to the rear, building floor levels should be set a minimum 150mm above the natural ground level. Paved areas, driveways, etc. in these cases should be graded to direct stormwater runoff for the major storm flows away from the buildings and to provide an overland stormwater flow path towards the drainage easement. Where properties are adjacent to major drainage channels and flood ways the finished floor levels of new building developments should be a minimum of 300mm above the 1 in 100 year ARI hydraulic grade line (HGL) of the floodway adjacent to the development. Building developments in low lying areas may require a detailed flood Report prepared by a professional engineer, identifying necessary earthworks within the site and finished floor levels needed to protect the property from flooding. There may areas designated as requiring minimum surface levels for flood protection. Before building work commences, the whole allotment should be filled to the specified fill level. The finished floor levels of all building developments in these areas should then be set above this designated fill level and driveways, paved areas etc. graded away from the buildings as described above. Filling on allotments to a depth greater than 200mm shall be properly compacted in order to support standard residential footings. An allotment plan shall be provide to Council showing the extent and the depth of filling on the allotment together with certification from a professional civil engineer


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indicating that the compacted filling is suitable to support standard footings for residential development. Developers, consultants, builders etc. should contact Council for advice on building floor levels during the concept and planning stage of proposed new developments.

4.10 Stormwater Pollution Control Devices Where Stormwater pollution control device(s) are required by Council to prevent the ingress of silts or other deleterious waste mater into the Councils existing stormwater drainage network they shall be constructed generally in accordance with the requirements of “Stormwater Pollution Prevention-Code of Practice for Local, State and Federal Governments” EPA, November 1997.

4.11 Stormwater Pipes Stormwater drainage pipes and box culverts shall generally be of reinforced concrete construction and in accordance with the following.

• Minimum pipe size of 375mm • Minimum box culvert size of 450mm x 300mm • Minimum clear cover over pipes or culverts shall be 600mm in

general or in accordance with the manufacturers specification otherwise approved by Council.

• The minimum vertical and horizontal clearances between a stormwater pipe and any other pipe or service conduit shall be 150mm.

• In areas of high water table, sandy soils or highly reactive soils, rubber ring joints shall be used.

• Minimum allowable pipe grades of 0.3% are required to ensure that water velocities in all pipe runs will be sufficient for self cleansing

• The pipe size of rear of allotment drains should be determined on merit.

Pipe outlets into natural watercourses and open channels shall incorporate works designed to provide protection from flows within the receiving waters, from overland flows into the receiving waters, and from local scouring and undermining of the outlet structure, and include measures to dissipate the outflow velocity.

4.12 Side Entry Pits and Manholes Side entry pits and man holes shall generally be of reinforced concrete construction. Where pre cast side entry pits and manholes are proposed they shall be installed in accordance with the manufacturer’s directions and specifications.


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See Drawings 10 Double Side Entry Pit Layout Where side entry pits and manholes are installed the following will be taken into account;

• All pits are to be recessed sufficiently to maintain a continuous lip line in accordance with the drawings.

• All pits are to be free draining. • Pits at intersections are generally to be located at the tangent point

taking into account the position of pedestrian paths and kerb ramps. (Note: pits must not be placed on kerb returns unless specifically approved by Council).

• Reductions in pipe sizes shall not be permitted. • Pipe openings are to be located within a single wall (i.e. pipes shall

not be allowed to enter through the pit corner. • The desirable maximum side entry pit depth shall be 1.5m to

facilitate maintenance. • Side entry pits should be located at the mid point of allotment

frontages to minimise conflict with serve conduits and future driveways.

• Manholes will be built and installed in accordance with the design specifications and/or the manufacturers’ directions and specifications.

• Manhole lids on all Collector Roads will be constructed in heavy duty concrete to accommodate heavy traffic loads.

• The desirable maximum stormwater manhole depth is three (3) metres. Any manholes with a depth greater than three (3) metres will incorporate an access ladder into the face of the manhole.


SECTION 5

LANDSCAPE AND OPEN SPACE


5 LANDSCAPING AND OPEN SPACE A general aim for landscape design is to incorporate the existing natural character of the site. This includes consideration of specific natural elements on the site and the wider natural environment within which the site is situated. All design measures should aim to reduce potential conflict and impact to the natural resource base and moreover to enhance the function of the natural landscape structure. The landscape design should also provide accessible and equitable provision of open space to the community. The configuration of reserves and streetscape should aim to be cohesive and legible within the larger urban design of precincts principles and designed to visually enhance the streetscape.


5.1.1 Prior to Development Approval The Developer will be required to ensure that the following requirements are carried out to meet the Councils standards in respect to the open space and landscape objectives of the development plan.

• Preparation of concept landscape plans and associated

documentation is to be undertaken by a qualified Landscape Architect.

• The landscape architect will consult with the Council in the formulation of a design brief for the site.

• Where Council identifies potential trees of significance, an existing tree survey of the site shall be carried out by a qualified Arborist to establish those trees to be removed and those trees to be retained for inclusion in a landscape plan.

• A commitment by the developer to enter into a land management agreement for the protection of existing vegetation where retention is identified as warranted

• A landscape concept plan shall be prepared and given approval by Council.

5.1.2 Prior to Construction Following Council approval of the landscape concept plan design but prior to construction, the Developer shall provide

• A final landscape design plan, a technical specification and a schedule of works shall be prepared and lodged with the Council in hard copy and electronically.


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• Approval of Council for any variations to the approved plans and specifications during the development stage must be sought by the landscape architect.

• If necessary, the establishment of a Land Management Agreement protecting significant trees

Typically, Landscape Design Plans will identify:

• Existing elements to be removed / retained • Site grading and drainage • Surface treatments and layout • Planting design • Construction details • Irrigation design • A plant schedule listing the botanical name, the container size and

the quantity/density of planting. Typically, the Technical Specification will comprise:

• Site preparation and demolition • Earthworks and cultivation • Irrigation • Concrete works, and paving • Planting schedule and turf specification • Park and Street Furniture and Fencing • Lighting • Maintenance requirements and Schedules • Landscape Work Schedules.

5.1.3 Post Construction

• An electronic copy of the “As-Constructed” drawings for all landscaping and irrigation works in AutoCAD (.dwg) format. This is to include any variations to the For Construction plans, including survey results. The drawing must reference the following coordinate system, unless otherwise specified:

Australia Geocentric Datum 1994 (AGD 94)

Map Gird Australia Zone 54 (MGA 54)



• A hard copy of the “As Constructed” drawings for all landscapingand irrigation works in accordance with specifications above.

• Signed and registered LMA protecting significant vegetation ifrequired


• A 12 month defects liability bond will be required for all works inaccordance with Council Model Bonding Agreement

5.2 Legislative Responsibilities The Development Act requires that 12.5% of the land shall be vested in the Council as public open space for developments exceeding twenty allotments. There are provisions in the Act for this to be contributed either as land or monetary payment or a combination of the two up to the value of this limit.

Where a Developer is proposing to make a monetary payment in lieu of land, discussions should be held with the Council at the concept plan stage.

5.3 Water Features Areas of land which are used or intended to be used for the permanent retention of stormwater should not be considered as part of any open space contribution, as per Councils Development Plan. Land proposed to serve a stormwater management purpose will not be included within the Developers 12.5% allocation of land for public open space unless it can be demonstrated to the satisfaction of Council that the area affected by the proposal, is environmentally sustainable, ecologically friendly to the local flora and fauna, and offers a genuine and safe recreational opportunity to the community.

If the Council is satisfied that the proposed permanent water body satisfies its environmental, ecological and recreational objectives then up to a maximum of 50% of the affected area may be included in the area to be counted towards the 12.5% open space requirement.

The design of water retention features will need to incorporate measures to control sediment and litter.

5.4 Landscape Design Principles

Developers will need to consider a range of general design principles when planning streetscapes and open space designs. Reference to Councils “Water Sensitive Urban Design” (WSUD) guidelines will assist designers to meet Councils open space objectives.

Consideration should be given but not limited to;


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• The configuration of open space to complement existing vegetation to attract and support the fauna native to the local area and to provide a buffer between development and viable ecosystems.

• Integration of streetscapes, parks, reserves and habitat corridors, to provide linear connections within and external to the development.

• Maximisation of opportunities for the retention and/or re-introduction of plant material that is indigenous to the site.

• Establishment of plant material of appropriate structure and species composition.

• Future maintenance of landscape works and ensuring that works are to the appropriate standard, of durable materials and low maintenance design.

• Conservation of irrigation water by using designs appropriate to the climate and utilising water-wise plant selection.

• Maximising opportunities for water re-use where opportunities are available.

• Ensuring that the design and development of the site does not increase the rate of surface run-off and that opportunities to improve the quality of surface water before leaving the site are examined.

• Incorporation of on-site detention/retention of stormwater and collection for re-use into the design where opportunities present themselves.

• Increasing the scope for infiltration by minimising sealed surfaces and maximising the use of porous surfaces.

• Utilising appropriate planting to reduce the velocity of stormwater runoff and ensure even flow distribution to avoid erosion.

• Planned landscapes being complimentary to building structures, and, to maximise the efficiency of buildings plantings should be established to demonstrate maximum solar gain.

• Plantings being designed to reduce the deleterious effects of wind and other natural climatic events, to provide shade, and promote air circulation to assist the management of the micro climate.

• Using landscape design to create an attractive visual setting for buildings, relative to the scale of the built form.

• Using landscape design to provide an overall character and identity of the streetscape to reinforce the function and character of the street hierarchy within the network and to reflect the character of existing surrounds.

• The orientation of the subdivision design should consider incorporation of frontages to open space to promote natural surveillance and community ownership.

• Streetscape design elements should be applied consistently to create continuity in character and appearance.

• Linkage of the pedestrian and cycle network with reserves and parks where appropriate or as identified in Councils Linear Trail Master Plan.

• Design of street lighting and public open space lighting to provide adequate illumination, taking into account the effect of vegetation growth and any other potential obstructions.


• Design of streetscapes and public open space should encouragepedestrian access by providing a degree of visual permeability toensure that adequate sight-lines are provided for safe passage.

5.5 Existing Trees

If identified by Council that the development may impact on as significant vegetation, all existing trees on, and within 5 metres, of the development site boundaries (or where requested by Council) shall be the subject of a detailed and accurate survey. An “Existing Tree Survey Plan” must accompany the land division plan and be submitted at the time of lodgement.

The “Existing Tree Survey” plan may be either: • a separate plan, or;• included within the Land Division Plan.

The potential impact of the land division upon existing trees must be clearly shown on a plan and must contain the following information;

• identification of the species including the botanical name of the tree;• the location of the tree accurately indicated, and;• the height and canopy of the tree and girth of the trunk.

The “Existing Tree Survey” plan must also indicate whether it is proposed that the tree is to be removed or retained. There should be no net loss of indigenous vegetation (where indigenous vegetation is to be removed it must be replaced with local species and identified in the landscaping plan).

Each significant tree identified on the survey is to be tagged or marked onsite to enable assessment by Councils Horticultural Policy Officer

Where there are existing trees that have been assessed and warrant being retained on the site the following tree protection measures may be required to be undertaken by the developer (or land owner in the event the developer does not own the land) prior to the commencement of any demolition, development, construction or building works,

• The establishment of a Land Management Agreement protectingeach tree;

• The tree is to be physically protected by providing a fence definingthe Tree Protection Zone using 1.8 metre high star picketing/chain wire. The fencing shall be located along the Tree Protection Zone and shall remain in place until all works are completed.

• All construction drawings including the landscape design plan,earthworks, drainage and service drawings shall show the trees to be retained and their protection zones.

• There is to be no storage of materials or machinery or siteoffice/sheds, nor is cement to be mixed or chemicals spilt/disposed of in the area, soil levels altered or excavations undertaken, or stockpiling of soil or rubble within the tree protection zone.


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• Any works required within the tree protection zone shall be under the direction of a suitably qualified Arborist, and to the satisfaction of Council.

• The applicant shall contact Council to arrange a site inspection to confirm the accuracy of Tree Protection Zones required for those trees to be retained.

• The name and number of the contractor completing the works, and/or a contact number for enquiries regarding the works.

In order to retain any established landscape character, all trees located within the existing road reserves shall be protected and retained, unless approved otherwise by Council.

5.6 Street Trees Street trees are to be provided in front of all properties at the centre of the allotment at a rate of one (1) per allotment, or at a rate necessary to provide a maximum spacing of twenty (20) metres. Street trees are to be planted within the Council verge in accordance with Drawing 3 Typical Cross Section of a Local Street. The species, size, age, method of planting and the location of the street trees will be approved by Councils Horticultural Officer in writing prior to planting. Trees shall have a minimum height of 2 metres at the time of planting, be double staked with 50mm hardwood stakes installed parallel to the road and loose tied and be planted in a mulched 1 metre diameter bowl to facilitate watering and water retention. The trees shall be maintained in good health by the applicant for a period of 12 months from the date of the issue of a certificate of practical completion. Any dead, diseased and damaged trees shall be replaced during this period. A site inspection will be carried out in the presence of a representative of the Developer and the Council Horticultural Officer not less than two months before the expiry of the maintenance period to determine what planting, if any, needs to be replaced. The design of the layout of street tree planting should be thematic and consistent with the objective of providing avenues of planting. Where development is proposed in areas within or near the central historic village areas of Mount Barker and Hahndorf, Council has specific requirements for street tree planting as identified in the Mount Barker Street Tree Master Plan 2004. Accordingly street tree planting proposals in these areas should be discussed with Council during the preliminary design stage.


5.7 Reserve Design

In addition to the general landscape design principles outlined in Section 5.4, the following design requirements are specific to those reserves that are planned within the Mount Barker District Council Area;

5.7.1 Trees in Reserves Where it is proposed to plant trees in reserves or on any other common land, community land or buffer zones the proposed planting will be included in the landscape concept plan to be submitted to the Council in accordance with the design principles outlined above.

Tree planting in reserves will need to take into account: • Existing trees on the site.• Soil stabilisation needs• Accessible shade• Ease of future maintenance• Proximity of fences and pathways (trees should not be planted

closer to fences that abuts private property than their mature height).• Lighting considerations where appropriate• Bushfire risk minimisation• General aesthetic quality

Tree planting in reserves shall include a mix of native and selected exotic species to reflect existing plantings in nearby and surrounding areas, and shall be designed via consultation with Councils Horticultural Policy Officer.

5.7.2 Grassing All reserves are to be grassed. Specific requirements include

• A minimum depth of 100mm of suitable topsoil shall be providedover all reserves to provide a satisfactory growing medium.

• All reserves shall be grassed with drought tolerant, low water useand frost hardy grasses to the satisfaction of Council.

• The land should be suitably designed and established for itsintended future use and to minimise future maintenancerequirements.

5.7.3 Fencing Reserves shall be fenced in accordance with the following

• Fencing of reserves where they abut any allotment not being a roador an existing reserve shall be off 1800mm capped colourbondfencing with galvanised posts and rails “facing into the adjacentallotment”. Alternative high standard fencing may be approved byCouncil


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• Fencing of reserves on road boundaries will be the subject of a separate decision of Council but should amongst other things provide for a high degree of visibility into the reserve from the street. Roadside fencing should incorporate a vehicle access gate for maintenance vehicles.

• Where a reserve incorporates a children’s playground the road side boundary fence or, within a separate fence specifically enclosing the playground area in large reserves the fence will incorporate a child proof safety gate

5.7.4 Irrigation An Irrigation Management Plan for the reserves is required by Council prior to installation. The plan needs to encompass best water management practices (for mains and reclaimed water) and include requirements as set out in the South Australian Reclaimed Water Guidelines to meet the requirements of the “District Council of Mount Barker Water Resource Management Strategic Plan 2001”. It should incorporate the following features;

• best practice water management features and water sensitive design.

• valves, fittings and backflow prevention devices suitable for automatic operation and, if needed, capable of utilising reclaimed water (class A) and mains water.

• irrigation of grassed areas to be carried out using rising sprinklers and

• irrigation of planted garden beds to be via subsoil dripper lines in accordance with the requirements of Councils Irrigation Materials Specification.

• Adherence with the guidelines set out in the Stormwater Pollution Prevention Code of Practice for the Building and Construction Industry to reduce the impact of irrigation water on the stormwater system.

The following requirements need to be addressed • A service connection and water meter are required to all open

spaces and reserves and must be a minimum of 40mm with an appropriate backflow device fitted (to comply with AS 3500.1-1990 section 7).

• One connection is to be provided for each 2000 square metres of the park

• The installation of an irrigation system to all landscaped traffic islands and roundabouts is mandatory

Irrigation systems are to be installed to Council satisfaction in accordance with Councils Irrigation Design and Installation Standards.

5.7.5 Furniture Park furniture including seats, tables, litter bins, bike racks, drinking fountains etc will be of a type and manufacture approved by Council during the concept plan design consultation stage and unless otherwise stipulated by Council will be consistently used in all reserve areas.


5.7.6 Paths Paths within reserves should be designed for their intended purpose in accordance with Section 3.4. Paths will be of concrete construction in accordance with Drawing 8 Typical Standard Footpath and Verge Details or other materials to the satisfaction of Council;

Paths shall be designed so as to create pedestrian and/or bicycle links to existing paths in the vicinity of the development.

5.7.7 Lighting Public lighting may be required in reserves over 1hectare in size or where paths or access to other structures are features of the park or the park forms a linear link.

Light poles shall be of a type and style approved by Council at the concept plan design consultation stage and shall be connected to the street electricity grid using either metal halide or compact florescent luminaires.

5.7.8 Entrance Statements All entry statements and walls shall be designed and constructed in accordance with Councils Policy Section 12.7.


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SECTION 6

COMMUNITY WASTEWATER

MANAGEMENT SCHEMES

(CWMS)


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6 COMMUNITY WASTEWATER MANAGEMENT SCHEMES (CWMS)

The District Council of Mount Barker is a rapidly urbanising rural area and as a result, a majority of the area is not connected to the Metropolitan S.A. Water Sewerage System, the exception being Hahndorf. In some of the townships in the Mount Barker Council area, Council operates a CWMS which collects primary treated effluent from septic tanks on individual properties and delivers it to a treatment plant. Where no CWMS exists, treated effluent is disposed of on site by way of soakage trenches or sprinklers On site disposal of effluent is not always satisfactory in the Mount Barker District Council Area for the following reasons;

• The existing soil conditions in much of the area is not suitable for the on site disposal of effluent;

• Large allotments are required; • The area is in a high rainfall area and the resultant saturated soil

conditions result in effluent overflows • Much of the Mount Barker Council area is in the Adelaide Hills Water

Catchments area and septic tank malfunction or effluent overflows have the potential to create serious water pollution problems.

To overcome these concerns Developers seeking to undertake land development projects in the Council area will be required in most instances to either;

• Connect into Councils existing CWMS; or • Construct a CWMS for the particular development; or • Consider alternative sewerage management techniques in

consultation with Council.

6.1 Fees and Charges The developer is required to meet certain costs in relation to the provision of sewerage infrastructure, namely;

• A connection set by Council annually per allotment for connection into Councils existing CWMS;

• All internal pipe network and pumping station costs and the connecting main costs from the development to a point (determined by Council) into the existing CWMS.


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In the event that the capacity of Councils existing CWMS is not sufficient to accommodate the new development and significant Waste Water Treatment Plant upgrading is required, then Council may require the Developer to meet these costs in lieu of the “per allotment” fee.

6.2 Design Requirements Developers are required to provide a development structure plan in accordance with Section 2.5 of this document setting out details on the methodology to be used to collect and dispose of sewerage from the site. Developers are directed to the following publications which are available on the Local Government Association Web Site (www.lga.sa.gov.au) for the design of the sewerage network within their development;

• Septic Tank Effluent Drainage Scheme Design Criteria (DHS & LGA);

• Technical Specification for the Construction of Septic Tank Effluent Disposal Schemes (DHS);

To further assist Developers and designers in this process, Council have developed a number of standard drawings and specifications as follows,

• Sheet 1 – Standard CWMS Manhole • Sheet 2 – Standard CWMS Flushing Point details • Sheet 3 – Type 1 property connection details (trafficable areas) • Sheet 4 -Type 2 property connection details (non-trafficable areas) • Sheet 5 – Standard CWMS construction layout dimensions • Sheet 6 – Maximum distance for a ( Y ) connection • Sheet 7 – Typical trench and backfill requirements • Sheet 8 – Minimum details for ‘As constructed’ drawings • Standard specification for excavation and reinstatement of services

under Council controlled land Council is to be given at least 24 hours notice of intention to perform work on its CWMS and an application to perform work on Council infrastructure is to be completed and approved before any work can commence. As constructed plans are required for all additions and alterations to Councils CWMS. The minimum acceptable standard for these plans is to be the same as the attached minimum details for as constructed drawings (Sheet 8).


SECTION 7

ENVIRONMENTAL PROTECTION


7-1

7 ENVIRONMENTAL PROTECTION The Developer and contractors shall take all measures necessary to ensure minimum disturbance to the existing environment as a result of the development

7.1 Site Control The Developer, and contractors shall observe all rules and regulations in force on the site and shall comply with all notices and instructions issued by Council in relation to such rules and regulations. Except as otherwise provided in the contract, space for the storage of materials and for building sheds, offices and workshops will be allowed only as arranged between the Developer and Council and must be in accordance with the Master Development Plan and Staging Plan for the development. No new tracks shall be formed, existing tracks altered, camps erected, trees or shrubs removed, fences cut, water, sewerage or power lines cut or any other such things done without the prior approval of the Council. Under no circumstances whatsoever shall fires be lit without the prior approval in writing of the Country Fire Service.

7.2 Water Conservation Water shall at all times be used in a judicious manner to avoid obvious wastage. Temporary devices used to control or shut off water flow whether installed in hose lines or otherwise shall comply with SA Water Corporation requirements.

7.3 Environmental Control The Developer shall be responsible for ensuring that the provisions of this section and any other environmental protection provisions in the contract are complied with and that the requirements of any statute, by-law, standard and the like related to environmental protection are observed. The Developer shall, prior to the commencement of work on the site, submit to the Council their proposals for traffic movement, temporary structures, cleaning up, erosion control and the like. After the proposals have been approved by Council, the Developer shall be responsible for ensuring that the approved proposals are observed. Any changes to the approved proposals shall be subject to the prior agreement of Council.


7-2

The Developer shall carry out the work with reference to the Environment Protection Agency (EPA) Codes of Practice listed below. The Developer shall ensure that pollutants such as dust, sediment, litter and wash down water do not leave the site during construction of the works. The Developer shall prepare a Soil Erosion and Drainage Management Plan (SEDMP) showing how this is to be achieved. The plan shall include a site layout together with a written procedure and implementation plan, and be submitted to Council prior to work commencing. These shall include all aspects of site management including:

• Site access from public or private roads; • Access around the site; • Areas of earthworks, stockpiles, loading areas; • Site drainage including all relevant information including sediment

collection devices, drainage lines and discharge points; and • Management of creek or river flows.

The Developer shall ensure that the following principles are included in the SEDMP and achieved on the site throughout the construction period:

• Limit site access to nominated and controlled locations and ensure that sediment is not transported off the site on vehicles or by vehicle wash down activities;

• Locate all stockpiles away from concentrated water flow paths; • Ensure that the least amount of land is exposed to the risk of

erosion for the shortest period of time; • Effectively control surface runoff entering and leaving the site; • Ensure that erosion control and sediment collection structures are

located to maximise their effectiveness and are in place prior to the commencement of site clearing works;

• Locate sediment traps and basins in locations that will not create flood risks to adjoining properties;

• Where control of creek or river flows is necessary, ensure that both low and high flows are managed to minimise erosion. For example if access across a creek is required construction of a ford may be preferable to construction of a culvert and roadway;

• Rehabilitate all disturbed areas as soon as possible including the reinstatement of riparian areas and the installation of ground cover planting progressively as earthworks are completed;

• Effectively maintain the erosion control and sediment collection devices; and

• Decommission sediment traps and basins only after completion of final works and as approved by the Council.

7.4 Solid, Liquid and Gaseous Contaminants The Developer shall be responsible for the proper disposal of all solid, liquid and gaseous contaminants in accordance with all statutory and contractual requirements including the provisions of this clause.


7-3

Gaseous contaminants shall be discharged in such a manner that they will be sufficiently diluted with fresh air that the toxicity will be reduced to a recognised acceptable level. Subject to statutory and local requirements, liquid contaminants may be diluted with water to a level of quality acceptable in the sewer system or shall be contained in approved vessels for disposal at an approved site. Solid contaminants shall be disposed of by removal from the site to approved locations or as otherwise directed by Council. Refuse from construction operations, including food scraps and the like, shall be removed from the site. All hoppers, chutes or buckets for refuse shall be covered or be of such design as to fully confine the material and prevent dissemination of dust.

7.5 Preservation of Flora The Developer shall refrain from destroying, removing or clearing trees and shrubs to an extent greater than is necessary for the execution of the work under the contract. Areas to be cleared shall be inspected by the Developer, and approval of Councils Horticultural Officer obtained before any trees or shrubs are removed, cleared or destroyed. Keep all construction activities, including storage of materials, vehicles equipment or rubbish, away from existing trees which are to be retained. Do not drive or park vehicles under the crown of existing trees which are to be retained. Before any excavation is carried out over roots of trees to be retained, obtain a ruling from the Councils Horticulture Officer as to whether the levels in the vicinity of the tree can be adjusted to protect the roots. Where there are existing trees to be retained on the site the tree protection measures indicated in Section 5 of this document are to be undertaken by the Developer prior to the commencement of any demolition, development, construction or building works. The Developer shall ensure that the provisions of the Land Management Agreement in respect to trees are complied with and that every reasonable precaution to protect those trees nominated to be retained from damage. Council may direct the Developer to repair any damage or injury to a tree that is to remain. This work shall be carried out by a tree surgeon engaged by the Developer and approved by Council.


7-4

7.6 Working Hours Construction activities on the development site shall be carried out only between the following hours;

• Monday to Saturday - 7am to 5pm, • Sunday - no work shall be undertaken other than necessary

watering for dust control.

7.7 Site Access Where more than one street abuts the development site Council will nominate the location and street from which access to the site is obtained. Developers are required to obtain Councils consent for the location of working access points to the site


TABLES AND DRAWINGS


Table 1: Standard Residential Road Design Elements Street Type Access Lane Access Road Local Streets Collector Road

Reserve Width 12.6 m 14 m 15 m 20.0 m – 25 m Verge width N/A 3.4m 3.9m 4.50m Traffic Catchment (max) 5 lots 30 lots 100 lots N/A Traffic volume 0-50vpd 50-300vpd 300-1000vpd 1000-3000+ vpd Design speed 15km/h (max) 30km/h (max) 40 km/h (max) 50 km/h (max) Carriageway Width Lanes – moving Parking

5.5m 1 1

7.2m 1 or 2 1

7.2m 1 or 2 2 or 1

11.0m 13.4m (with cycle lanes) 2 2

Constructed footpaths (with a one side path – preference is to be located on low side)

NA One side - width 1.5m One side - width 1.5m Both sides – width 1.5 to 2.0 at bus stops, seating and sheltered areas to be provided.

Cycle provision N/A On carriageway On carriageway Shared path on verge or cycle lane on carriageway

Grade Desirable Absolute maximum

10% 16%

10% 16%

10% 16%

6% 10%

Public Transport Indented bus stops, seating and sheltered areas

Individual Lot access Yes Yes Yes Yes Sight distance (general) Reference Standards and Codes

As per Austroads, AS2890, AS1428 Aust Model Code & Services in Streets Code





1

DISTRICT COUNCIL OF MOUNT BARKER

SWD - 01

ON LINE ALLOTMENT DRAINAGE CONNECTION (TYPE 1)

OR SURFACE INSPECTION OPENING

PLAN

SECTION

DISTRICT COUNCIL OF MOUNT BARKER

SWD - 02

ON LINE ALLOTMENT DRAINAGE CONNECTION (TYPE 2)

FOR 300mm MINIMUM COVER

SECTION

PLAN

CWMS - 01

TECHNICAL SPECIFICATION SHEET 1 of 4

COMMUNITY WASTEWATER MANAGEMENT SYSTEM

TECHNICAL REQUIREMENTS FOR NEW CONNECTIONS AND SHORT

EXTENSIONS OF GRAVITY MAINS

These Technical Requirements are applicable for small gravity extensions to existing CWMS

(Community Wastewater Management System) mains to service not more than 3 allotments and /

or more than 60 metres of new gravity main .

All other CWMS including non gravity systems will require separate drawings and specification

prepared by a consulting engineer and the approval of the Department of Health.

Design

A plan to scale showing location and invert of existing pipe, existing and future inverts, contours,

connection levels and finished surface level, separation to other infrastructure / services is to be

provided. The plans are to be prepared by a person experienced in CWMS design and

construction.

Any pipework within a tree protection zone shall be designed to avoid damage to the tree and tree

roots and works designed and undertaken in accordance with AS 4790 - Protection of Trees in

Development Sites

The plans need to show the extent of each allotment that can drain fully to the connection point

based on plumbing code requirements. The connection depth is to be designed to suit allotment or

maximum depth.

Standard design requirements:

Main pipe grade 1% minimum, except directionally bored which shall be 2%

Connection grade shall be a minimum 2%

Pipe minimum 100 mm PVC Class 6, or match existing if a higher standard

Directionally bored pipe class, grade and size to be nominated by experienced contractor for

Council approval

Minimum connection depth to be 1.0 metre unless shallower depth supported by design.

Minimum cover in easement to be 0.6 metre

Minimum cover in a road to be 0.75 metre

All joints solvent welded joints unless otherwise noted

Expansion Joints are the only Council approved product to be used to break in to live mains

for repair or new connections

A minimum 1.5 metre horizontal clearance and 0.2 metre vertical clearance between CWMS

mains and other services should be provided. All crossings should be at right angles to the

CWMS pipe

continued sheet 2.

MOUNT BARKER DISTRICT COUNCIL

CWMS Technical Specification for New Connections and Short

Extensions of Gravity Mains

continues from sheet 1.

Connections, Flushing points, trenching, maintenance holes are to be in accordance with Council

standard details

A flushing point (FP) to be placed every 100 metres (measured from the closest FP) or at a change

in direction exceeding 15 degrees. It is recommended that an additional FP is constructed at the

downstream extent of the works to allow the mains to be sealed to allow air or hydrostatic testing.

Each allotment will require a CWMS connection meeting current standards. Existing

connections will need to be upgraded to meet current standards.

All Council infrastructure should be located centrally in an easement in favour of Council or

contained in the road reserve / community land. Easements shall be a minimum of 3.0 metres wide

for single pipes and 4.0 metres wide for 2 pipes.

Unless varied by these requirements work shall be designed in accordance with the Septic Tank

Effluent Drainage Scheme - Design Criteria (Department of Health / LGA) and construction

undertaken in accordance with the Standard Form - Technical Specification for Construction of

Septic Tank Effluent Drainage Schemes (Department of Health / LGA) as amended or updated.

For any technical queries contact Council on 83917290

Approvals

Plans are to be submitted to Council, 6 Dutton Road Mt Barker 5251 or email to

[email protected] and clearly marked 'Application for CWMS Extension'

Two separate approvals will be required

1. Technical approval for the work. Plans will need to be submitted showing design and extent of

works.

2. A permit to undertake works on Council land (CWMS) or connect to Council infrastructure (form

available from Council or on Councils website). This applies for all works including works in

easements.

If works affect any public road (including footpath), or a railway a traffic management plan is

required to be prepared and approved by the relevant authority.

At the request of Council a construction method statement may be requested addressing

construction, safety and environmental management.

Approved plans and permit are required prior to commencing construction.

Note that in addition to Council approvals, Department of Health approval is required for:

continued sheet 3.

CWMS - 02






Extensions to the CWMS gravity mains exceeding 3 allotments and / or 60 metres of main

All pressure systems including communal rising mains

Payments

There is no application fee.

A CWMS levy is applicable for all new connections to Councils CWMS and is to be paid prior to

approval. The CWMS levy is for the maintenance and upgrade of existing infrastructure and

treatment. Please contact Council for the current rate, which is adjusted each financial year.

Construction Works

All works to be undertaken by an accredited plumber or drain layer.

Prior to construction commencing:

boundaries are to be pegged by licensed surveyor and existing CWMS infrastructure and other

services located and depthed as appropriate.

the site is to be made and kept safe for the general public at all times

all necessary occupational health and safety work practices shall be implemented and all

required equipment shall be on site. This includes working on or in the vicinity of live sewers,

deep trenching, trenching in unstable soils, trenching adjacent existing structures etc.

Working on live CWMS/ sewers shall be undertaken in accordance with EPA and Department of

Health requirements. Where possible, works should be undertaken when flows are at their

minimum.

Council to be notified 48 hours prior to backfill of trench to allow an inspection of the works and

immediately of any incidents or overflows of effluent to the environment.

Any excavation within a tree protection zone shall ensure the tree and tree roots are not damaged.

Hand excavation, air spade or directional boring should be considered. Works shall be undertaken

in accordance with AS 4790 - Protection of Trees in Development Sites. If in doubt contact an

arborist.

Any excavation around existing buildings or structures should ensure the stability of the structure is

not affected. The requirements of the structure owner (ie a stobie pole) should be complied with.

Any excavation closer than the depth of the trench away from a building (measured from the closest

edge of the trench) should not occur unless constructed in accordance with an engineers report.

If trench base is not firm, specialist geotechnical advice to be sought

continued sheet 4.

CWMS - 03






Trenches shall be dewatered during construction if required. Where possible, in areas of high

groundwater, an agricultural drain shall be installed connecting the CWMS trench to a suitable

stormwater outlet.

All surface covers shall be finished level with adjoining surface and placed to match the longitudinal

grade and cross fall of the road.

Materials shall comply with SA Water requirements for sewerage unless varied by these

specification notes or the Council standard details.

Reinstatement

Reinstatement of Council roads and verges shall be undertaken in accordance with Council

standards Refer Council website for details.

Reinstatement to a condition safe for the general public shall be undertaken prior to leaving the site

each day and full reinstatement within 2 weeks of completion.

Checks and Certification

Council staff will undertake an inspection prior to S 51 clearance.

Prior to Council inspection:

Site is to be fully repegged by licensed surveyor

All mains flushed clean

Level check of the mains completed by a surveyor and provided to Council

As constructed drawings provided to Council, to a standard shown in Council details.

Site is clean and all disturbed surfaces reinstated

An inspection by an engineer or surveyor experienced with CWMS to confirm that all works

have been undertaken in accordance with the approved drawings and specification.

At or prior to the Section 51 Council inspection, testing of the CWMS main is to be arranged by the

applicant at the cost of the applicant and witnessed by Council. Testing shall be either:

an air test to 50 kpa with hold of 15 minutes or

a hydrostatic test (pipe filled with water to surface level), and no drop in level over 30 minutes.

CWMS - 04



TYPICAL TRENCH AND BACKFILL -

NO GROUNDWATER

TYPICAL TRENCH AND BACKFILL -

IN GROUNDWATER

CWMS - 05

TRENCH AND BACKFILL DETAILS


CWMS - 06

NEW CONNECTION / EXTENSION OF MAINS


FRONT OF ALLOTMENT

REAR OF ALLOTMENT

FRONT OF ALLOTMENT ('Y' CONN.)

CWMS - 07

TYPICAL CONNECTION I.P. LOCATIONS


PLAN

CWMS - 08

MAXIMUM DISTANCE FOR A 'Y' CONNECTION


CWMS - 09

SEALING CAP DETAILS AND IN LINE FLUSHING POINT LOCATIONS

TERMINAL LOCATION BEND

JUNCTION JUNCTION

FLUSHING POINT

CONNECTION

UPVC SEALING CAP DETAILS

IN LINE FLUSHING POINT LOCATIONS


PLAN


CWMS - 10

TYPICAL CONNECTION AND FLUSHING POINT COVER DETAILS

SECTION A-A

CW

MS

- 11

FLU

SH

IN

G P

OIN

T O

R M

AX

IM

UM

D

EP

TH

C

ON

NE

CT

IO

NS

ELE

VA

TIO

N

ME

TH

OD

1

MO

UN

T B

AR

KE

R D

ISTR

ICT

CO

UN

CIL

CWMS - 12

ALTERNATIVES TO METHOD 1 CONNECTIONS

[A]

[B]

[C]

( CONNECTION ONLY )

( CONNECTION ONLY )

( FP OR CONNECTION )


CWMS - 13

TERMINAL OF DRAIN LINE & FLUSHING POINT

SET UP WITH FLUSHING POINT AND CONNECTION

ELEVATION

ELEVATION

TERMINAL OF DRAIN LINE AND F.P.

( WITH OPTIONAL CONNECTION SHOWN )


CWMS - 14

CREEK CROSSINGS

TYPICAL CONCRETE ENCASEMENT OF DRAIN

OR RISING MAIN THROUGH CREEKS


PLAN

SECTION A-A

MAINTENANCE HOLE / ACCESS CHAMBER ( MH / AC )


PLAN

CWMS - 16

MINIMUM STANDARD FOR "AS CONSTRUCTED" DRAWINGS


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