Long Term Plan 2018—2028
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Whanganui District Council’s Long Term Plan 2018—2028 Volume 3 30 Year Infrastructure Strategy Contents Executive summary . .. 4 Overview of core infrastructure . 24 Infrastructure performance . 50 Water supply . 50 Description . 24 Introduction . 6 Stormwater drainage . 50 Water supply . 24 Wastewater. 50 Strategy layout .. 7 Stormwater drainage . 24 Roading and footpaths . 50 Wastewater. 26 Parks and recreation . 50 Purpose and scope . 8 Roading and footpaths . 27 Cultural and events facilities . .. 50 Parks and recreation . 33 Royal Wanganui Opera House . 51 Context, trends and strategic issues . 9 Parks and reserves . 33 Alexander Heritage & Research Library . 51 Overview of infrastructure assets . 9 Mobile Library . 51 Cultural and events facilities . 35 Water supply . 10 Whanganui Regional Museum . 51 Whanganui Venues and Events . 35 Stormwater drainage . 10 War Memorial Centre . 52 Libraries. 36 Wastewater. 10 Property buildings. 52 Whanganui Regional Museum . 36 Roading and footpaths . 11 Ports .. 52 Sarjeant Gallery . 37 Parks and recreation . 11 Overview of assets . 38 Information services . 53 Cultural and event facilities . 11 Property buildings . 41 Risk to asset performance . .. 53 Property buildings. 11 City Endowment portfolio . 41 Water supply . 53 Ports .. 11 Overview of assets . 42 Stormwater drainage . 53 Information services . 11 Wastewater. 53 Ports . 43 Context . 17 Roading and footpaths . 53 Airport . 43 Historical context . 17 Parks and recreation . 54 Seaport . 44 Demographic context . 18 Cultural and events facilities . .. 54 Durie Hill Elevator . 44 Geographic context . 19 Property buildings. 54 Overview of assets . 45 Strategic context . .. 20 Ports .. 55 Linkage with other documents. 21 Information services . 48 Information services . 55 Relationships with iwi . 22 Overview of Assets . .. 49 2 30 Year Infrastructure Strategy Factors influencing the Infrastructure Strategy . 57 Levels of service . 110 Major projects timeline .. 118 Water supply . 110 Demographic and land use changes . 57 Wastewater. 111 Financial estimates . 119 Natural events and climate change . 59 Stormwater . 111 Total expenditure – projected capital expenditure Roading and footpaths . 111 Sustainable asset management approach . 61 Community, Cultural and Events Facilities . 111 for combined infrastructure assets . 119 Changing legislative requirements Parks and recreation . 111 Operational expenditure . 120 and environmental standards . 62 Specific projects: . 111 Capital Expenditure . 121 Affordability . 64 Arrangements for service delivery. 112 Indicative Estimates – Capital Expenditure . 124 Water supply . 112 Assumptions and risks . 65 Sewerage and the treatment and Appendix . 133 disposal of sewage . 112 Significant infrastructure issues . 72 Stormwater drainage . 112 Appendix A – Criticality map for water supply . 134 Provision of roads and footpaths . 112 Appendix B – Criticality map for stormwater . 135 30-year strategy . 108 Parks and recreation . 113 Appendix C – Criticality map for wastewater . 136 Community and cultural . 113 Priorities . 108 Property buildings. 113 Appendix D – Growth area maps . 137 Management strategy .. 108 Ports – sea and air . 113 Lifecycle management . 109 Information services . 114 Risks, hazards and resilience . 110 Significant decisions required . 114 Growth and demand . 110 Contents 3 Executive summary Infrastructure provides a This document aligns with Council’s Long-Term The Council’s infrastructure includes: Plan and our Leading Edge Strategy foundation for building strong and commitments . It contributes to our vision to be • 843,397 kilometres of roads, 73 bridges and resilient communities . This a united, connected, creative, environmentally 332 752. kilometres of footpaths strategy describes Whanganui rich and economically prosperous community • Five water supply schemes and provides mechanisms to respond to future • Three wastewater schemes District Council’s existing challenges Whanganui will face . infrastructure, identifies significant • Three stormwater schemes The key issues to be addressed by this strategy • 114 green spaces1 issues that might impact on this can be classified into five themes: and outlines the Council’s • 12 community, cultural and events facilities 1 . Demographic and land use changes approach to managing 2 . Natural events and climate change infrastructure assets over the next 3 . Sustainable asset management approach 30 years . 4 . Changing legislative requirements and environmental standards 5 . Affordability 1 This includes six Premier Parks, 14 Active Parks, six Cemeteries, two Aquatic Centres, five Pathway Parks, 47 Passive Parks and 34 Conservation Parks – note: while areas may be classified as recreation reserves they are not necessarily usable by the public . 4 30 Year Infrastructure Strategy This comprises a significant infrastructure This strategy is developed in response to these portfolio with assets estimated at over $1 .6B . issues and is reflective of Whanganui’s financial Although this infrastructure supports the safety, climate and community needs . It sets in place a health, convenience, connectivity and clear strategy for the management and enjoyment of residents and visitors, it also preservation of the district’s key infrastructure means that Council needs to be aware of, and now, and into the future . The strategy is an respond to, issues such as growth demands, the indicative estimate of the Council’s future impact of climate change, ongoing asset infrastructure needs . It is not a budget, and by maintenance / renewal, increasing legislative itself it does not commit Council to any future requirements and changing level of service project, cost or timing . It is a statement of expectations from the community . These issues current assumptions and thinking on what all have an impact on rates and service delivery infrastructure issues Council is likely to face and – with affordability an ongoing concern for a how Council is planning to address these issues . district of Whanganui’s size and socio-economic The strategy is consistent with the overall make-up . assumptions contained in the Long-Term Plan 2018-2028 and should be read in conjunction In addition, this strategy, and its related Long- with this document as well as the Asset Term Plan, have been developed from a starting Management Plans for each portfolio . These point of high debt . This is as a result of large plans contain more specific detail to support the infrastructure projects, particularly for delivery of this strategy . wastewater and stormwater, combined with historic rates rises that, at times, have not kept pace with an ever growing list of services delivered by Council . Now that peak debt has been reached, Council’s repayment programmeme will manage these requirements so that future generations are not unduly encumbered . Executive summary 5 Introduction This strategy is Whanganui The Infrastructure Strategy outlines how the In responding to these issues it must be Council will responsibly manage its acknowledged that Whanganui is an old District Council’s 30 Year infrastructure assets . As a result, the strategy: settlement with a modern vision . Our Infrastructure Strategy for the infrastructure marks our age and early boom • Shows what infrastructure is needed to district and the key strategic plan – including social and cultural facilities unique to deliver Whanganui’s longer term economic, a district of our size – and our ongoing for our assets . It is grounded in environmental and social goals liveability is supported by a broad range of our present context and based on • Identifies significant infrastructure issues infrastructure networks including pipes, realistic growth forecasts . It the Council may face over the next 30 years reservoirs, roads, cycleways and community and the principal options for resolving those amenities . These ensure we can deliver the explains current thinking and issues – including the preferred option outcomes our community desires – for example assumptions on infrastructure • Identifies the costs and risks of each option by protecting public health through the issues the Council is likely to face to enable informed decisions to be made provision of clean drinking water and the treatment of waste; facilitating the movement of in the future and how the Council It has been developed to address the following people and goods for economic growth; and is planning to address these key issues: maintaining the public spaces and facilities issues . This is supported by an 1 . Demographic and land use changes essential for a vibrant community . As a result, investing in and maintaining our infrastructure overview of major infrastructure 2 . Natural events and climate change provides direct benefits for everyone in our projects and a timeline for 3 . Sustainable asset management approach district . completion . 4 . Changing legislative requirements and environmental standards 5 . Affordability 6 30 Year Infrastructure Strategy Strategy layout Strategy section LGA 2002 as amended (Section 101B) 1 Provides a summary of the key issues addressed within the document (1) 3 Identifies the purpose of the strategy and the core infrastructure included within 2(a), 6(a) and 6(b) it 4 Provides context by describing the district, illustrating the linkage between 3(e) and 4(d) strategic documents and referencing the strategic statements that guide decision-making 5 Describes the core infrastructure provided by the Council, its current 3(e) performance