609-621 Burwood Highway, Knoxfield Engineering Assessment Development Victoria
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609-621 Burwood Highway, Knoxfield Engineering Assessment Development Victoria May 2017 Contents 1 Introduction 2 Glossary 3 GHD Disclaimer 4 1 Engineering Assessment 12 Appendix A - Infrastructure Plans II | May 2017 | 609-621 Burwood Highway, Knoxfield - Engineering Assessment |GHD Introduction Development Victoria is considering to develop land at 609-621 Burwood Highway, Knoxfield. The site is currently government owned and controlled by the Department of Environment, Land, Water and Planning for the purposes of a horticulture research station. The site is approximately 19 Ha, bounded by Burwood Highway and Scoresby Road, and is located adjacent to Knox City Shopping Centre and Fairhills High School. It is understood that Development Victoria wish to undertake a Engineering due diligence assessment of the site to inform the rezoning application. GHD | 609-621 Burwood Highway, Knoxfield - Engineering Assessment | May 2017 |1 Glossary The following abbreviations are contained within this report and explained for further understanding. CICL Cast Iron Cement Lined CONC Concrete PE Polyethylene UPVC Unplasticized Polyvinyl Chloride OPVC Oriented Polyvinyl Chloride HDPE High Density Polyethylene MDPE Medium Density Polyethylene MSCL Mild Steel Cement Lined MSW Mild Steel Welded Dia Diameter kVA Kilo Volt Amps DBYD Dial Before Your Dig 2 | May 2017 | 609-621 Burwood Highway, Knoxfield - Engineering Assessment |GHD GHD Disclaimer This report: has been prepared by GHD for Development Victoria and may only be used and relied on by Development Victoria for the purpose agreed between GHD and the Development Victoria as set out in the Purpose of Report section of this report. GHD otherwise disclaims responsibility to any person other than Development Victoria arising in connection with this report. GHD also excludes implied warranties and conditions, to the extent legally permissible. The services undertaken by GHD in connection with preparing this report were limited to those specifically detailed in the report and are subject to the scope limitations set out in the report. The opinions, conclusions and any recommendations in this report are based on conditions encountered and information reviewed at the date of preparation of the report. GHD has no responsibility or obligation to update this report to account for events or changes occurring subsequent to the date that the report was prepared. The opinions, conclusions and any recommendations in this report are based on assumptions made by GHD described in this report. GHD disclaims liability arising from any of the assumptions being incorrect. GHD | 609-621 Burwood Highway, Knoxfield - Engineering Assessment | May 2017 |3 4 | May 2017 | 609-621 Burwood Highway, Knoxfield-Engineering Assessment | | May2017 |609-621Burwood Highway, 1 Engineering Assessment GHD 1. Methodology 2.1 Responsible Authorities 1.1 Purpose of this Report The development site is bound by Scoresby Road on the east side and Burwood Highway on the south side of the GHD conducted a general servicing location enquiry for all development. VicRoads is the responsible authority for both relevant services via Dial Before You Dig, and has received these roads. existing services plans from all relevant authorities. Upon receipt of these plans, brief discussions were held with each service All proposed internal roads within the site development would be authority to initiate further advice regarding the proposed future the responsibility of the City of Knox and would be designed to development. Digital copies of services plans were requested Council standards and used to create existing services plans shown in Appendix A. 2.2 Proposed Development Formal requests for further servicing advice and additional The site is serviced well with direct access to the existing road development information were issued to all relevant authorities infrastructure. Discussion with both Council and VicRoads has and subsequent discussions were held with a number of the determined that access intersection at Scoresby Road is stakeholder authorities. Phone and email discussions were achievable and would need to be reviewed further upon formal undertaken to confirm and expand on information relevant to this application and further traffic studies. feasibility assessment. It is anticipated that typical road cross sections shall be in the A review and analysis of the available service authority form shown in Figure 1. information was undertaken and broad high level service capacity and road strategy advice was obtained from relevant authorities. Discussions were held with the following service authorities in addition to receiving formal information: • Multinet Gas • Ausnet Services – Electricity • South East Water • City of Knox • VicRoads • NBN 1.2 Service Authorities The following asset owners and service providers were contacted and are relevant for development approvals: • Electricity Distribution – Ausnet Services • Telecommunications – Telstra, Optus and NBN • Gas Reticulation –Multinet Gas • Sewer and Water – South East Water • Internal Road Infrastructure and Stormwater Drainage – City of Knox • External Road Infrastructure - VicRoads Available service capacity, infrastructure strategies and indicative high level costings received from the authorities has been gathered and detailed in the following sections. Generally authorities have advised that further consultation and formal supply applications are required when functional designs are completed to ensure service strategies and detailed supply offers can be ultimately provided. 2. Road Access GHD | 609-621 Burwood Highway, Knoxfield - Engineering Assessment | May 2017 |5 Collector Road - 20 m Road Reserve Access Street – 15 m Road Reserve Access Lane – 6 m Road Reserve Figure 1 Development Layout and Typical Road Heirarchy 6 | May 2017 | 609-621 Burwood Highway, Knoxfield - Engineering Assessment |GHD 3. Electricity 3.3 Existing Services and Assets 3.1 Responsible Authorities The existing distribution electricity infrastructure for the development area is shown in Plan 1 in Appendix A. Ownership of power assets in Victoria is split between the transmission network and the distribution network. The majority 3.3.1 Distribution Network of the transmission network in Victoria is owned, maintained and AusNet Services has numerous high voltage and low voltage operated by AusNet Services and in this case the same authority cable assets both underground and overhead surrounding the maintains the distribution assets as well. proposed site. An existing 22,000 volt substation – Burwood HRI 3.2 Terminology Burnett, is located at the Burwood Highway frontage, however this asset is not within the development site and facilitates the The transmission network includes terminal stations and adjoining Department of Environmental and Primary Industry transmission lines, which connect the power stations to the (DEPI) site and external properties to the south of the terminal stations. development. The distribution network connects to the Terminal Stations and AusNet Services has advised that existing high voltage assets extends to the individual properties. exist along Scoresby Road and Burwood Highway. The The distribution network comprises the following components: proposed development can be supplied from these assets without the need for any external high voltage substation/ • Sub-transmission lines that connect terminal stations to conductor upgrades. zone substations 3.4 Proposed Servicing Advice • Zone substations 3.4.1 External Development Infrastructure • Distribution Feeders – either overhead or underground lines that connect zone substations to local substations As previously mentioned, no external works are required to facilitate electrical supply to the development. • Substations – indoor, kiosk or pole mounted • Low Voltage Power lines – either overheard lines or underground cables connecting the substations to the customers The components of typical transmission and distribution networks are broadly described in Figure 2. Figure 2 Typical Electricity Transmission and Distribution Network GHD | 609-621 Burwood Highway, Knoxfield - Engineering Assessment | May 2017 |7 3.4.2 Internal Development Infrastructure 4.2.2 Optus As a residential development the electrical distribution must be Plans provided by Optus indicate that there are Optus assets underground supply with kiosk reserves required within the along Scoresby Road and Burwood Highway. The majority of development area. It is expected that all proposed electrical existing conduits are 100 dia in size in varying material and conduit and cable assets will be within road reserves and new Optus has advised existing copper and optic fibre cables are kiosk substation - potentially 2 No 500 KVA kiosk substations present to service the site. would be need to be positioned preferably in the open space There is a minor existing network supplied from Scoresby Road areas. that will need to be decommissioned and removed to facilitate For the commercial/mixed use development a kiosk substation the new development network. or an indoor substation will be required and the size will depend 4.2.3 NBN on final loadings, however it may be in the order of a 500 KVA substation. NBN assets are currently being installed with completion scheduled in 2017. A proposed network of low and high voltage cables will need to be installed within the subdivision with high voltage links between 4.3 Proposed Servicing Advice the various substation sites and surrounding