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9 April 2021 This page was left blank intentionally Quality Record Sheet Document Approved by Mike Duff – Group Manager Infrastructure Services Document Information Activity 30 Year Infrastructure Strategy 2021-2051 Version 2 Release State Draft Contribution Sarie van der Walt – Coordinator Asset Programs Mike Williams – Manager Infrastructure Planning Other departments in Council Reviewed Internally By Mike Duff – Group Manager Infrastructure Services Reviewed Externally By Ross Waugh Revision History Version Date Amendments 0 12 March 2021 Initial draft document for comments 1 24 March 2021 Incorporating comments from Auditor-General and Waugh Infrastructure 2 9 April 2021 Incorporating comments from Auditor-General Buller District Council 30 Year Infrastructure Strategy 2021 - 2051 TABLE OF CONTENTS 1. EXECUTIVE SUMMARY ....................................................................................................................... 5 2. INTRODUCTION .................................................................................................................................. 8 2.1 STRATEGY LAYOUT ................................................................................................................................... 9 2.2 PURPOSE ................................................................................................................................................ 9 2.3 BULLER DISTRICT CORE INFRASTRUCTURE ASSETS ....................................................................................... 10 2.4 INFRASTRUCTURE PERFORMANCE ............................................................................................................. 12 2.5 RISKS TO ASSET PERFORMANCE ............................................................................................................... 14 3. OVERVIEW OF OUR DISTRICT ............................................................................................................ 16 3.1 THE BULLER DISTRICT ............................................................................................................................. 16 3.2 HISTORY ............................................................................................................................................... 17 3.3 MAJOR TOWNS ..................................................................................................................................... 18 3.4 EMPLOYMENT, POPULATION, GROWTH AND DEMOGRAPHIC TRENDS ............................................................ 19 3.5 COUNCIL ’S 10 YEAR LTP SIGNIFICANT STRATEGIC ISSUES ............................................................................ 23 3.6 STRATEGIC CONTEXT .............................................................................................................................. 27 3.7 LINKAGE WITH OTHER DOCUMENTS ......................................................................................................... 30 4. ASSUMPTIONS AND UNCERTAINTIES ................................................................................................ 34 4.1 SIGNIFICANT ASSUMPTIONS .................................................................................................................... 34 4.2 FUTURE RISKS AND OPPORTUNITIES .......................................................................................................... 54 5. STRATEGIC CONSIDERATIONS ........................................................................................................... 57 5.1 MANAGING CHALLENGES AND EMERGING TRENDS ...................................................................................... 57 5.2 GOVERNMENT AND INDUSTRY DIRECTION ................................................................................................. 57 5.3 THREE WATERS REFORM PROGRAMME ..................................................................................................... 61 5.4 DRINKING WATER SUPPLIES .................................................................................................................... 67 5.5 DEMOGRAPHIC CHANGES ....................................................................................................................... 68 5.6 NEW TECHNOLOGIES .............................................................................................................................. 68 5.7 CHANGING GOVERNMENT PRIORITIES AND LEGISLATIVE ENVIRONMENT ......................................................... 69 5.8 CLIMATE CHANGE RESILIENCE AND ENVIRONMENTAL SUSTAINABILITY ............................................................ 72 5.9 BIODIVERSITY PROTECTION AND ENHANCEMENT......................................................................................... 76 5.10 INFRASTRUCTURE RESILIENCE ............................................................................................................... 76 5.11 AGING INFRASTRUCTURE ..................................................................................................................... 77 5.12 ECONOMIC CHANGE ........................................................................................................................... 77 5.13 AFFORDABILITY .................................................................................................................................. 78 5.14 COMMUNITY ASSETS .......................................................................................................................... 78 5.15 KARAMEA HIGHWAY SPECIAL PURPOSE ROAD ........................................................................................ 79 5.16 WAKA KOTAHI ONE NETWORK FRAMEWORK ......................................................................................... 80 Page 1 of 139 Draft Buller District Infrastructure Strategy 2021-2051 Rev 2 9 April 2021 6. THIRTY YEAR STRATEGY ................................................................................................................... 82 6.1 APPLYING THE STRATEGIC STATEMENTS (COMMUNITY OUTCOMES) TO INFRASTRUCTURE PLANNING .................. 82 6.2 THE ORGANISATIONS’ PRIORITIES ............................................................................................................. 83 6.3 INFRASTRUCTURE STRATEGIES.................................................................................................................. 88 6.4 SIGNIFICANT DECISIONS REQUIRED ........................................................................................................... 92 7. SIGNIFICANT STRATEGIC INFRASTRUCTURE ISSUES .......................................................................... 93 7.1 COUNCIL’S ASSET DATA .......................................................................................................................... 96 7.2 LEVELS OF SERVICE ............................................................................................................................... 102 7.3 CAPITAL WORKS PROGRAMME .............................................................................................................. 106 7.4 THREE WATERS ................................................................................................................................... 109 7.5 WATER SUPPLY ................................................................................................................................... 111 7.6 WASTEWATER ..................................................................................................................................... 115 7.7 STORMWATER ..................................................................................................................................... 119 7.8 LAND TRANSPORT ................................................................................................................................ 121 7.9 SOLID WASTE MANAGEMENT ................................................................................................................ 129 8. FINANCIAL ESTIMATES ................................................................................................................... 138 8.1 FINANCIAL EXPENDITURE ESTIMATES OVERVIEW ....................................................................................... 138 8.2 WATER SUPPLY ................................................................................................................................... 139 8.3 WASTEWATER ..................................................................................................................................... 140 8.4 STORMWATER ..................................................................................................................................... 142 8.5 LAND TRANSPORT ................................................................................................................................ 144 8.6 SOLID WASTE MANAGEMENT ................................................................................................................ 145 8.7 MOST LIKELY SCENARIOS ...................................................................................................................... 147 APPENDIX A THREE WATERS REFORM PROGRAMME ........................................................................ 150 APPENDIX B THREE WATERS SERVICES DELIVERY REFORM PROGRAMME ......................................... 151 APPENDIX C MAJOR PROJECT DELIVERY MODEL ...............................................................................