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Infrastructure Strategy Greater Wellington Regional Council

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Infrastructure Strategy Greater Wellington Regional Council Infrastructure Strategy Greater Wellington Regional Council ‘Looking after the assets that matter for the next thirty years’ Greater Wellington Infrastructure Strategy Page 1 Contents Introduction to our Infrastructure Strategy ........................................................................... 3 Direction for infrastructure ................................................................................................... 5 Asset overview ..................................................................................................................... 7 Significant infrastructure challenges and issues ................................................................... 11 Addressing the Issues ......................................................................................................... 14 How much needs to be invested ......................................................................................... 16 Assumptions and Risks ....................................................................................................... 19 Water Supply ..................................................................................................................... 22 Public Transport ................................................................................................................. 29 Flood Protection ................................................................................................................. 40 Parks .................................................................................................................................. 49 Environmental Science........................................................................................................ 56 Harbours ............................................................................................................................ 59 Summary ............................................................................................................................ 63 Technical Appendices ......................................................................................................... 64 Greater Wellington Infrastructure Strategy Page 2 Introduction to our Infrastructure Strategy Greater Wellington’s Infrastructure Strategy tells you how we plan to manage our infrastructure over the next 30 years, to support the vision we have for the region and how we will manage our infrastructure assets in response to our changing environment. The provision of prudently managed infrastructure is key to delivering on Greater Wellington’s vision and priorities. Scope of Strategy The strategy outlines how we plan to manage the following asset groups: Water Supply Public Transport Flood Protection Parks Environmental Science Harbours For each asset group identified above, this strategy will outline the key issues and considerations and our management approach. While the Infrastructure Strategy provides details of the level and timing of investment needed to operate, replace, renew and upgrade existing facilities, the Financial Strategy outlines the required rating and debt levels to fund these investments. Together the two strategies outline how Greater Wellington intends to balance investment in assets and services with affordability. Greater Wellington uses its asset management plans as a basis for its 10 Year Plan, including this Infrastructure Strategy. The Strategy doesn’t contain the detail of asset management and operational planning. It draws on them to provide a high-level summary of the assets owned and managed by councils in terms of type, quantity, confidence and value to help frame the Infrastructure Strategy discussion. The key issues for infrastructure have been identified as: Ageing Infrastructure Resilience Affordability These are covered in more detail on page 11 of this strategy. Strategic Assets Assets and groups of assets that Greater Wellington holds and considers to be strategic assets, and pertinent to this Infrastructure Strategy is: Bulk water supply network Ownership, via the WRC Holdings Group (a wholly owned subsidiary of Greater Wellington), of rail rolling stock and other rail infrastructure required for the operation of the passenger rail system in the region (taken as a whole) Flood protection assets Regional parks and forests network (including water supply catchments) Harbour navigation aids and communications systems (taken as a whole) Greater Wellington Infrastructure Strategy Page 3 What has changed since 2015? Our role has not changed; the type of work Greater Wellington needs to do and provide has not changed. However we continue to review and adjust how we operate and how we deliver our services. Long term planning for infrastructure is not new to us; we prepared our first Infrastructure Strategy as part of the 2015-25 Long Term Plan. Much of the information and assumptions in that strategy is still valid today. We have reviewed our 2015 strategy, and rather than starting from scratch, have used that as a base – we understand that we need to take an enduring approach to making decisions about infrastructure. The assets we own for bulk water supply, flood protection, and public transport constitute the majority of Greater Wellington’s asset value, and require our largest annual operating expenditure commitments. They were covered in our 2015 Infrastructure Strategy. As part of this update, we have chosen to expand the scope of the strategy, to include three additional asset groups: parks; environmental science; and harbours. There have also been some events that have had an impact on what and how we deliver services and when, including; Greater Wellington has a new vision and new strategic priorities which set a framework for our work Our knowledge of our assets and forecasting capability has continued to grow The impact of the Kaikōura earthquake in November 2016 and the floods of 2016/17 have brought a sharper focus on how resilient we need to be as a region to survive and thrive with adverse shocks and stresses including population change, earthquakes, adverse events and climate change. Greater Wellington Infrastructure Strategy Page 4 Direction for infrastructure Our vision and priorities Greater Wellington’s infrastructure underpins our ability to deliver to our vision and priorities. These are summarised here: Our Vision - An extraordinary region – thriving, connected and resilient Freshwater and Biodiversity: The quality of the freshwater in our rivers, lakes and streams is maintained or improved, and our region contains healthy plant, bird and wildlife habitats Water Supply: The bulk water supply infrastructure consistently delivers high-quality drinking water to the four city councils (Porirua, Hutt City, Upper Hutt and Wellington). Regional Resilience: Our infrastructure is resilient to adverse events and supports our region’s economic and social development Public Transport: The Wellington region has a world-class integrated public transport network Principles While Greater Wellington’s vision, priorities and the assumptions provide an over-arching framework to ensure we are working on the things that matter, the following principles shape how we manage our assets. The application of these principles ensures we manage our assets in a consistent and considered way. Forward looking – Intergenerational equity. Infrastructure is future oriented – developed and managed with consideration for long-term use including future technology and population changes Optimal – Greater Wellington will optimise its infrastructure planning to take account of lifetime cost and demand factors Adaptable – We will build and develop assets that are resilient to social and environmental changes, including adverse events Coordinated – We develop our infrastructure in consultation with our major partners reflecting our part in the national system (central government, Territorial Authorities, Council Controlled Organisations). We will develop our infrastructure with other partners too, wherever that would be practical and cost-effective. Navigating a changing environment In developing our 10 Year Plan, Greater Wellington formed a view on the type of things that will, and do, impact on how and when we plan our investment now and in the future. These assumptions are listed below (and detailed in the Supporting Information on pages 188-211): Changes in our population Increased adverse events and impacts from climate change The fast-pace of changes in technology Economic growth Pressures on land use and the environment Greater Wellington Infrastructure Strategy Page 5 Governance Partnerships Social change. In the detail of each asset group in this strategy, we outline specific considerations and impacts of these assumptions and the options we have to address them, and any impact this will have on our levels of service. Additional asset management assumptions have been made in drafting this Infrastructure Strategy. These are listed in the Appendix and the detail given in the relevant section of the document. Public and Environmental Health Providing, operating, managing and regulating infrastructure can have adverse effects on public health and safety and the environment. An overriding assumption is that all Greater Wellington work aims to improve environmental outcomes, or at least mitigate any adverse effects, as well as protecting and improving public health and safety. Greater Wellington Infrastructure Strategy Page 6 Asset overview Asset management approach
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