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«Engineering Standard Right of Way CRN CS 540 SERVICE INSTALLATIONS IN THE RAIL CORRIDOR Version 1.1 Issued June, 2016 CRN DMS REFERENCE: ...»

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Engineering Standard

Right of Way

CRN CS 540



Version 1.1

Issued June, 2016



Owner: Manager Engineering Services

Approved by: D Mackney, Principal Track and Civil Engineer

Authorised by: J Zeaiter, Manager Engineering Services

Disclaimer. This document was prepared for use on the CRN Network only. John Holland Rail Pty Ltd makes no warranties, express or implied, that compliance with the contents of this document shall be sufficient to ensure safe systems or work or operation. It is the document user’s sole responsibility to ensure that the copy of the document it is viewing is the current version of the document as in use by JHR. JHR accepts no liability whatsoever in relation to the use of this document by any party, and JHR excludes any liability which arises in any manner by the use of this document.

Copyright. The information in this document is protected by Copyright and no part of this document may be reproduced, altered, stored or transmitted by any person without the prior consent of JHR.

UNCONTROLLED WHEN PRINTED Page 1 of 14 CRN Engineering Standard - Right of Way CRN CS 540 Service Installations in The Rail Corridor Document control Revision Date of Approval Summary of change 1.0 August, 2011 First Issue.

Includes content from the following former RIC standards:

G 5000, G 5001, G 5006, TS 3421.

1.1 June, 2016 See Summary of changes below Summary of changes from previous version Section Summary of change Various Updated wording for consistency Various Changed “Principal Civil Engineer” to “Principal Track and Civil Engineer” 2.1 Removed publication dates from Australian Standards 2.2 Deleted reference to CRN CP 207 and CRN CS 410 2.3 Removed publication dates from publications 6.3.2 Extension of restrictions on installations through concrete culverts to all culvert types 6.3.3 Changed reference from CRN CP 207 to CRN CM 541 6.4.3 Deletion of duplicated sentence © JHR UNCONTROLLED WHEN PRINTED Page 2 of 14 Issued June, 2016 Version 1.1 CRN Engineering Standard - Right of Way CRN CS 540 Service Installations in The Rail Corridor Contents 1 Purpose, scope and application

2 References

2.1 Australian and International Standards

2.2 CRN documents

2.3 Other references

2.4 Definitions

3 Engineering authority

4 General requirements

4.1 Applications by non-rail parties

4.2 Services search

4.3 Installation planning

5 Above ground (aerial) services

5.1 Types of services

5.2 Permitted installations – non-rail parties

5.3 Design requirements

5.4 Collision Protection

6 Below ground (underground) services

6.1 Types of services

6.2 Permitted installations – non-rail parties

6.3 Design requirements

6.4 Installation

6.5 Markers

7 Trenching

7.1 Placement of excavated material

7.2 Width of trenches

7.3 Backfilling and compaction

7.4 Disposal of excavated materials

7.5 Ponding of water in open trenches

8 Documentation

8.1 Design stage

8.2 Work-as-executed plans

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1 Purpose, scope and application This Standard specifies the technical requirements for the design, installation and maintenance of electrical, signalling, communications and utility services, cables and pipelines on the Country Regional Network (CRN) rail corridor.

The requirements are applicable to both JHR CRN services and services owned by non-rail parties.

The requirements are applicable to both above ground and below ground services.

–  –  –

Definitions of other standard terms used in this standard are provided in AS 4799 “Installation of underground utility services and pipelines within railway boundaries” 3 Engineering authority Design and selection of infrastructure detailed in this standard for use on the CRN may only be undertaken by persons who have been granted appropriate Engineering Authority by the Principal Track and Civil Engineer.

4 General requirements 4.1 Applications by non-rail parties Applications by non-rail parties for the installation of services on the rail corridor shall be made in accordance with the process detailed in CRN Engineering Manual CRN CM 541 “Service Crossings”.

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Major service crossings, e.g. pipelines carrying flammable liquids, toxic or corrosive substances are not permitted without the approval of the Principal Track and Civil Engineer.

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Service searches for non-rail (external) services shall be undertaken with the relevant authorities in accordance with industry-standard procedures including Dial-Before You-Dig.

Service searches for JHR CRN services shall to be undertaken in accordance with the requirements of JHR CRN’s Services Search procedures

–  –  –

Use of electronic cable locating equipment shall be in accordance with CRN Engineering Procedure CRN SP 050 “Use of Cable Locators”

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Excavation work shall comply with the requirements of WorkCover NSW “Code of Practice Excavation” (Cat. No. 312) and WorkCover NSW Guide “Work Near Underground Assets” (2007).

5 Above ground (aerial) services 5.1 Types of services Above ground services include aerial lines such as electrical and communication services, freestanding structures carrying pipelines and services attached to bridges.

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5.2 Permitted installations – non-rail parties Permitted installations of above ground services by non-rail parties include high and low voltage power, telecommunications, water, sewerage and gas.

Pipeline crossings on dedicated free-standing aerial structures are not permitted without approval of the Principal Track and Civil Engineer.

5.3 Design requirements 5.3.1 General Aerial crossings for electrical, telecommunications and other utilities shall be designed and installed in accordance with relevant industry and Australian Standards.

Free-standing structures carrying pipelines shall be designed in accordance with CRN Engineering Standard CRN CS 330 “Miscellaneous Structures”.

5.3.2 Services attached to bridges Design loadings for services attached to bridges shall be in accordance with relevant Australian Standards. The bridge shall be assessed for the structural capacity to withstand the service pipeline design loadings.

Fixing details shall be in accordance with design codes and practices. They shall not impact on the structural integrity of the bridge. They shall not create an obstruction that causes water to pond or debris to accumulate on the bridge structure. They shall only be made into existing structural members with the approval of the Principal Track and Civil Engineer.

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Services and fixings shall not prevent access for inspection and maintenance of the bridge, including the structure immediately behind the service.

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No services shall be attached to bridges and structures without the approval of the Principal Track and Civil Engineer. Proposals shall ensure that there is no adverse impact on the structure (e.g.

walking areas for authorised personnel and access for inspection and maintenance of the structure).

5.4 Collision Protection The design of piers or columns supporting service structures within the rail corridor shall comply with the provisions of collision protection and loading in AS 5100 “Bridge Design”.

–  –  –

The prime requirement is to protect the piers and columns against damage from a derailed train, which in turn could result in collapse of the structure onto the train.

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Design and configuration of collision protection shall meet the requirements of CRN CS 320.

6 Below ground (underground) services 6.1 Types of services Below ground (underground) services may include low or high voltage electrical, signalling and telecommunication cables and pipelines conveying, water, sewerage, combustible liquids (e.g.

petroleum) and flammable fluids (e.g. gas).

–  –  –

6.2 Permitted installations – non-rail parties Installation of new service crossings directly across the rail corridor will be considered and may be approved by JHR CRN, subject to all engineering requirements being met and a satisfactory agreement being reached between JHR CRN and the Applicant.

Although there are many existing non-rail services that have been installed longitudinally along the rail corridor, further installations shall not be permitted unless approved by the Principal Track and Civil Engineer.

Valves, compressor stations and flare points for combustible liquids or flammable fluids are not permitted on the rail corridor.

6.3 Design requirements 6.3.1 General Underground cables and pipelines shall be designed and installed in accordance with Australian Standard AS 4799 and the requirements of this Standard.

Signalling and communication service installations shall comply with CRN Engineering Specification CRN SC 021 “Construction of Cable Route and Signalling Civil Works”.

Power cable installations shall also comply with the requirements of CRN SC 021.

6.3.2 Location For non-rail party installations, underground services shall be located in natural ground.

For JHR CRN services, they shall generally be located in natural ground but in restricted locations they may be located in the formation, including the shoulder areas.

Where the installation method includes excavation of the capping and formation, restoration of the formation and capping shall be carried out on completion of the cable laying works as specified in Section 7.

–  –  –

Minimum clearances to adjacent structures and vulnerable areas such as drains, toes of embankments, shoulders of embankments and tops of cuttings shall be in accordance with AS 4799.

No services shall be attached to bridges and structures without the approval of the Principal Track and Civil Engineer. Proposals shall ensure that there is no adverse impact on the structure (e.g.

walking areas for railway employees and access for inspection and maintenance of the structure).

Where crossings are being installed under a bridge, the trench shall be excavated no closer than 3 metres to the footings of any abutment or pier. The excavation shall not undermine the bridge footing or lead to instability or sliding of the abutment or pier. The stability of the abutment or pier shall be checked for the temporary open trench condition and it shall be demonstrated that the requirements of AS 5100 have been met.

–  –  –

No services shall be installed in an open channel drainage system.

No underboring can be carried out at any location under, or within 10 metres of turnouts or special trackwork (catch points, expansion switches, diamonds, slips etc.).

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6.3.3 Geotechnical assessment All proposed undertrack crossings shall be assessed by JHR CRN personnel in the planning stage in accordance with the process detailed in CRN CM 541. If as a result of the assessment it is considered that there is a significant risk to the stability of CRN infrastructure a Geotechnical assessment shall be required.

–  –  –

If, as a result of a design and works planning review undertaken by CRN in accordance with the process detailed in CRN CM 541, and based on geotechnical report/s, JHR CRN determines that ground movement is possible or expected as a result of the work, JHR CRN may determine that infrastructure monitoring is required.

–  –  –

If underboring is planned and it meets the requirements of 'minor' underboring detailed in CRN CM 541, the simplified monitoring guidelines also detailed in CRN CM 541 may be applied.

6.3.4 Design traffic load Pipelines carrying underground services within the rail corridor shall be designed for R20 vehicle loading. Refer to CRN CS 320 for details of the R loading configuration.

Pipelines carrying underground services crossing under the tracks shall be designed for train loads as specified in CRN Engineering Standard CRN CS 310 “Underbridges”. The dynamic load allowance (DLA) shall vary linearly from 1.5 at 0.3 m depth to 1.0 at 3.5 m depth or greater, where the depth is measured from the top of rail. This load shall be applied to the length of pipe as specified in AS 4799.

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Where practicable, new undertrack crossings shall be installed at greater than the minimum depths specified above. This ensures that the service is well clear of other existing services and future maintenance activities on CRN infrastructure.

6.3.6 Direction of services For non-rail party installations, undertrack service crossings shall cross at 90 ±5° to the tracks.

Where this is not achievable, the crossing shall be as close as possible to 90°. Service crossings shall not have bends within the rail corridor.

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Encasing pipes shall be provided for all undertrack crossings conveying high voltage cables, pressure pipelines and pipelines carrying combustible liquids and flammable fluids.

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Different services shall be separated as prescribed in Clause 3.2.6 of AS 4799, AS/ACIF S009 “Installation requirements for customer cabling (Wiring Rules)” and AS 3000 “Electrical installations (known as the Australian/New Zealand Wiring Rules)”.

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