This section shows the major infrastructure projects and key infrastructure decisions over the next 50 years. Significant future decisions are subject to the DCC’s Policy on Significance and Engagement, and significance will be determined by the DCC in the context of decisions about the 10 year plan.
Major projects and key decisions | Issues in response to | Description | Options | Type | Cost | Expected timing | Carbon Neutrality |
|---|---|---|---|---|---|---|---|
3 Waters Reform | |||||||
Decision on participation in Three Waters Reform Programme+ (+service delivery reforms –proposed transfer of local government 3 waters assets and service delivery functions to new water services entities) | Regulatory, legislative and service delivery changes | The DCC will decide whether to continue participating or ‘opt out’ of the Government’s 3 waters service delivery reform programme in late 2021. The Government will promote an amendment to the Local Government Act 2002 that, if passed, would enable councils to transfer ownership of 3 waters assets and services to new entities. The proposed amendment will also provide a fit-for-purpose consultation process that sets out how local government will engage with communities and iwi/Māori about the reform proposals and make decisions. This decision is only for service delivery reform. Council is unable to opt out of the regulatory elements of 3 waters reform. | Option 1: agree to continue DCC participation in the Three Waters Reform Programme. This is expected to lead to the transfer of DCC 3 waters assets and service delivery functions to a new water services entity in about 2023. Option 2: ‘opt out’ of the Three Waters Reform Programme. Retain 3 waters assets and service delivery functions within the DCC. | Council decision. | Costs relating to making this decision, including costs related to running a public consultation process, are yet to be determined. | Late-2021 | Likely no effect on emissions |
Projects to prepare for regulatory, legislative and service delivery changes | Regulatory, legislative and service delivery changes Planned increase in levels of service | Prepare the 3 Waters Group, the wider DCC and Dunedin for implementation of changes to 3 waters regulatory systems, and the potential transition to a new entity for 3 waters service delivery. The purpose of these projects is to establish certainty on the impact of reform and reduce associated risks. Other benefits include enabling a co-operative exit, leveraging value for Dunedin and setting up a new water services entity for success. The focus areas are contract and capital delivery, asset ownership, system planning, asset management, strengthening regulation and servicing growth. | Options to be developed via the various projects currently in planning stages. | To be determined | Costs will be determined based on strategic need and deliverability. | 2021 - 2023 | Likely no effect on emissions |
System Planning | Regulatory and Legislative Changes Planned increase in levels of service, Response to growth in demand, Public health and environmental outcomes Renewing and replacing assets Resilience to natural hazards | 3 Waters ‘whole of system’ strategic planning to develop baseline and long-term investment plans. Identify current and future issues, develop objectives and levels of service and create long and short list options for the systems. In the short term, the baseline stage of this work informs the Metro WWTP Resilience Project. Long-term, strategic capital investment plans are produced. These will inform the 2024-34 10-year plan. | Options to be developed via the various projects currently in planning stages. A decision will be made on long term investment plans in the 2024-34 10 year plan. | Majority of planning is OPEX, produces CAPEX plans, amount to be determined. | Costs will be determined based on strategic need, affordability and deliverability. | 2021 - 2051 | Unknown |
Network infrastructure | |||||||
The need for new capital expenditure will be reassessed following decisions on areas for new development in the 2GP and then Variation 2 | Response to growth in demand Public health and environmental outcomes | Using a medium growth scenario, demand is estimated at 4,000 new dwellings between 2021 and 2031 and 7,000 new dwellings by 2071. Growth funding has been allocated to allow for substantial planning and design within the first 12-18 months, followed by a steady programme of capital delivery over the remaining term of the 10 year plan. Detailed planning is in progress, with the initial planning focussed on high priority areas that have been identified in consultation with developers. As the planning and design develops, the phasing of capital works may change through the annual plan process to meet development requirements. | Options for responding to increase in demand will be developed once the 2GP and Variation 2 appeals process is completed. The costs included in the 10 year plan are an estimate of the 3 waters and transport network infrastructure requirements to meet the growth needs of 2GP and Variation 2. | To be determined | $104 million to be funded by development contributions and debt financing where appropriate. | 2021 - 2036 | Likely increase in emissions |
Water and Sanitary Services assessment | Public health and environmental outcomes | The Water and Sanitary Services Assessment is a district-wide assessment of the provision of water and sanitary services (such as wastewater, stormwater, public toilets and cemeteries). The assessment reviews the adequacy of existing systems in serviced communities and any health risks arising from the absence of systems in un-serviced communities. The most recent assessment was completed in 2007. | Options will be considered in the Water and Sanitary Services assessment. | To be determined | Costs will be determined based on the outcomes and associated Council decisions from the Water and Sanitary Services Assessments. | 2021-23 | Possible increase in emissions |
Other Network Renewals | Renewing and replacing assets Public Health and environmental outcomes | These are ongoing pipeline renewals projects (not already identified below) across all 3 waters network assets. These renewals will be focused on: areas of high inflow and infiltration rates, aged assets, high break rates and customer complaints. This will address risks in water supply reliability and pressure, water quality, wastewater overflows, flooding and pipeline collapse. | The preferred option is a steady spend over the 10-year period. | Renewals | $57 million (note the remainder of the renewals budget is allocated to specific network renewals identified elsewhere in the table). | 2021-2031 | Likely no effect on emissions |
Minor Network Renewals | Renewing and replacing assets Public Health and environmental outcomes | Reactive, smaller scale network renewals and repairs across all 3 waters, mostly undertaken by the network contractor. | Reactive work is undertaken as required. | Renewals | $50 million | 2021-2031 | Likely no effect on emissions |
Water supply | |||||||
Water supply resilience | Response to growth in demand Public health and environmental outcomes Renewing and replacing assets Resilience to natural hazards | Projects intended to improve the ability of the water supply network to provide adequate safe potable water regardless of forecast changes in climate and population, and in the event of a natural disaster. Activities include the Ross Creek to Mount Grand transfer line, water treatment plant renewals and upgrades and pump station renewals and upgrades. Some minor renewals and monitoring work have commenced as part of the 3 waters reform tranche 1 funding. | Further work is needed on detailed design and deliverability, plus risks may materialise which would change the timing of some projects. Options are in development. | New Capital and Renewals | $76.7 million | 2021-2031 | Likely no effect on emissions |
Dam Safety Action Plan | Renewing and replacing assets Resilience to natural hazards | Physical works required in order to continue to comply with Dam Safety requirements. Some work has commenced as part of the 3 waters reform tranche 1 funding. | Physical works are undertaken as required in order to meet dam safety requirements. | Renewals | $4.0 million | 2021-31 | Likely no effect on emissions |
Water take reporting | Regulatory and Legislative Changes Public health and environmental outcomes | Recent amendments to the Resource Management (Measurement and Reporting of Water Takes) Regulations 2010 make real-time collecting and transmitting of water use to regional councils mandatory. Implementation is required by 2022 for takes ≥20 litres/second (20 of the DCC’s 29 takes). For takes ≥10 but <20 litres/second (eight of the DCC’s 29 takes) real-time monitoring is required by 2024. For takes ≥5 but <10 litres/second (one of the DCC’s 29 takes), implementation is required by 2026. The DCC currently downloads and supplies water take data to the regional council on a monthly basis. Work is underway to investigate adjustments and/or upgrades needed to meet the new real-time reporting requirements. | Work is underway to respond to regulatory changes. | New Capital | $750,000 | 2028/29 – 2030/31 | Likely no effect on emissions |
Smart Metering | Renewing and replacing assets | Replacement of existing manual read meters on commercial premises with ‘smart’ meters capable of being read remotely and connection to the Internet of Things allowing the DCC and customers to view consumption in real time. | Work is underway with completion expected in 2026. | New Capital | $1.4 million | 2021-2025 | Likely no effect on emissions |
Port Chalmers Water Supply | Renewing and replacing assets Response to growth in demand | Investigate options to rationalise water supply to Port Chalmers year-round from the metropolitan supply. Funding is based on this being feasible, however, if not, it will be redirected towards renewal/upgrade of Port Chalmers water supply infrastructure to meet demand. This will reduce water quality risks, improve supply reliability and reduce operational costs Renewals are needed at the treatment plant if it is not to be decommissioned in the near future as part of the Water Supply Resilience project. | This project is currently programmed for 2027 but if delivery capacity can be increased this project can be brought forward. | New capital | $14.4 million | 2027-2031 | Likely decrease in emissions |
Deep Stream and Deep Creek raw water pipeline renewals | Renewing and replacing assets Resilience to natural hazards | Renew Deep Creek and Deep Stream pipelines to Mt Grand Water Treatment plant (which provide majority of Dunedin’s water) to increase resilience and renew ageing pipes. Investigation of options and design will commence in the final year of the 2021-31 plan with construction to commence after 2031. Seismic and geotechnical assessments undertaken and construction with seismically resilient materials where necessary. | Timing of project will be confirmed by a formal condition assessment within the next 5 years. The renewal date will be brought forward if the pipe condition warrants it. | Option dependent | $80 million | 2030-2036 | Likely no effect on emissions |
Water network renewals – Waikouaiti/Karitane | Renewing and replacing assets Public Health and environmental outcomes. | Renewal of water assets to mitigate increasing asset failure rates. This work was accelerated as part of the 3 waters reform tranche 1 funding. | Design underway with construction to commence once design completed. | Renewals | $6.5 million | 2020 – 2022 | Likely no effect on emissions |
Network renewals Kaikorai Valley / North East Valley | Renewing and replacing assets Response to growth in demand | Renew water network assets to improve water supply fire flows. Renewals for all three networks in these areas will be undertaken as part of the new pipeline renewals contract. | This is an ongoing project. Renewals will be focused on areas with aged assets, high break rates and customer complaints. | Renewals | $17 million (over water supply and wastewater renewals) | 2019 - 2023 | Likely no effect on emissions |
Network renewals Careys Bay | Renewing and replacing assets Public Health and environmental outcomes. | Renewal of water assets to mitigate increasing asset failure rates. Renewal of wastewater assets to reduce wet weather flows to the downstream network. Construction of stormwater network where required. | Construction underway. | Renewals and new capital. | $5.5 million across all three networks. | 2021-24 | Possible increase in emissions |
Network renewals Sawyers Bay | Renewing and replacing assets Public Health and environmental outcomes. | Renewal of assets across all 3 waters networks to decrease wet weather overflows in the wastewater network, improve the ability of the stormwater network to deal with forecast future flows and aged water infrastructure. This work was accelerated as part of the 3 waters reform tranche 1 funding. | Design underway with construction to commence once design completed. | Renewals and new capital | $5.9 million across all three networks | 2020-23 | Likely no effect on emissions |
Central City renewals | Renewing and replacing assets Public Health and environmental outcomes. | Renewal, rationalisation and upgrade of 3 waters infrastructure in the area covered by the central city plan (George Street, Stuart Street, Bath Street, Princes Street, Rattray Street and associated streets). | Options are still being considered for 3 waters approach in these areas but range from full replacement of all assets in certain areas to replacement of aged, failing or under capacity assets only. The scale of investment needed from 3 waters is a significant portion of the overall budget in years 2-3 and so benefit compared to other risks needs to be considered in the options. | Renewals | $37.9 million across all three networks | 2021-27 | Likely no effect on emissions |
Tertiary Precinct renewals | Renewing and replacing assets Public Health and environmental outcomes | Renewal and upgrade of 3 waters infrastructure in the area covered by the Tertiary Precinct Project (Harbour Terrace, Union Street East, Clyde Street and Albany Street). | Options are still being considered for 3 waters approach in these areas but range from full replacement of all assets in certain areas to replacement of aged, failing or under capacity assets only. | Renewals | $11.2 million across all three networks. | 2031-2035 | Likely no effect on emissions |
Wastewater | |||||||
Metro WWTP resilience | Response to growth in demand Public health and environmental outcomes Renewing and replacing assets Resilience to natural hazards | Renewals and new capital at the metropolitan wastewater treatment plants and Musselburgh pumping station to: maintain levels of service, ensure ongoing compliance with, and renewals of, resource consents, and biosolids treatment, removal and disposal. Most urgent elements are prioritised for years 1-3 Some minor renewals and monitoring work have commenced as part of the 3 waters reform tranche 1 funding. This work targets risks to H&S, plant reliability, sludge treatment reliability and compliance issues from inadequate wet weather flow management. | Further work is needed on detailed design and deliverability, plus risks may materialise which would change the timing of some projects. Options are in development. | New capital and renewals | $114 Million | 2021-33 | Likely no effect on emissions |
Rural wastewater schemes | Public Health and environmental outcomes Renewing or replacing assets Planned increase in levels of service Resilience to natural hazards | Network and WWTP investigation to inform upgrades to the rural networks prior to the discharge consents expiring to ensure they can meet current and anticipated enhanced effluent quality targets and minimise the effect the effluent has on the environment. These projects also assess the capability and capacity of the wastewater systems to meet current and future demands and levels of service. | Design for Seacliff and planning for Middlemarch WWTPs renewals is underway. Options for Warrington and Waikouaiti will be developed as plant consents become due in 2024 and 2027 respectively. | Renewals | $9.9 million | 2021-27 | Likely no effect on emissions |
Pump station renewals | Renewing or replacing assets | A programme of risk-based renewal and upgrades to wastewater pumping stations to maintain levels of service and replace ageing assets. | This project is to address pump stations that have been identified as requiring urgent attention. | Renewals | $2 million | 2021-25 | Likely no effect on emissions |
Stormwater | |||||||
Stormwater Hydraulic Models | Public Health and environmental outcomes Planned increase in levels of service Resilience to natural hazards | This project is part of the baseline stage for stormwater system planning. Capital work is associated with the creation, calibration and/or updating of stormwater network models which will allow investment options to be tested and compared. | The level of model development will be assessed as part of the gap analysis stage. Development of a stormwater system plan will provide the 3 Waters Group with the tools necessary to ensure the greatest return on future investment. | Renewals and/or New Capital | $1 million | 2021-24 | Likely no effect on, or a decrease in emissions |
South Dunedin Flood Alleviation | Public health and environmental outcomes Planned increases in levels of service Renewing or replacing assets Response to growth in demand Resilience to natural hazards | Capital works to mitigate flooding in South Dunedin and mitigate risks from climate change. Solutions are informed through the work on existing hydraulic models, flow monitoring and incorporation of groundwater models and climate change predictions. This project forms part of the larger South Dunedin Futures programme which aims to effectively respond to the climate-driven challenges facing South Dunedin, whilst potentially resolving other issues such as poor-quality housing at the same time. | Hydraulic model enhancements and calibrations are underway, which will inform the capital investment options and enable decisions on the best way forward. These models will be supported by information on environmental effects, ensuring that constructed infrastructure meets community expectations. It is possible further funding changes will be needed as options progress to minimise the flooding risk. | New capital and renewals | $36.7 million | 2021-31 | Likely no effect on emissions |
Mosgiel stormwater network improvements | Public health and environmental outcomes Renewing or replacing assets Planned increases in levels of service Resilience to natural hazards | Improvement of hydraulic models to enable optimal options. Improvements to Reid Avenue swale to reduce flooding. Identify and undertake where needed, optimal infrastructure investment to reduce flooding. | Updating of hydraulic models allowing for targeted renewals and replacement. | Renewals | $19.5 million | 2021-28 | Likely no effect on emissions |
Watercourse Programme (New Capital) | Renewing or replacing assets Public health and environmental outcomes Resilience to natural hazards Planned increases in levels of service | New approach to watercourse related flood and landslip problems, resolving priority issues caused by watercourse asset failure under private ownership within current budgets. This results in minor extension of DCC’s network with localised benefits in management of stormwater and meeting stated levels of service. Reduces other hazard risks such as sinkholes and landslips. | Projects are prioritised based on a standard multi-criteria tool and managed via a set delivery framework. Budget requests to be made each year as part of the annual plan process. The asset ownership policy for watercourses is planned for review, along with assessing financial impacts to the DCC, to enable to longer-term strategy for managing these assets. | New Capital | $3.5 million annually | 2021-22 | Likely no effect on emissions |
Transport | |||||||
Central City upgrade | Public health and environmental outcomes Renewing or replacing assets Planned increases in levels of service | Renewal, rationalisation and upgrade of transport infrastructure to improve safety, accessibility and amenity in the area covered by the central city plan (George Street, Stuart Street, Bath Street, Princes Street, Rattray Street and associated streets). | Options will be considered through indicative and detailed business cases. The George St upgrade detailed business case will commence in early 2021. | New capital and renewals | $60 million | 2020 –31 | Likely decrease in emissions |
Dunedin urban cycle ways | Public health and environmental outcomes Planned increase in levels of service | Arterials Cycleway: Close the gaps in the existing cycleway network. | Options are being considered through a detailed business case expected to be completed in 2021. | New capital | $9 million | 2021 –23 | Likely decrease in emissions |
North East Valley Cycleway: Provide a cycleway to connect North East Valley with the city | Work on a business case will be started in 2021. | $11 million | 2023-2036 | ||||
Tunnels Trail Cycleway: Provide a cycleway connecting Dunedin and Mosgiel through chain hills area and the Caversham tunnel. | Preferred alignment options and a single stage business case are in development. | $27 million | 2023-2041 | ||||
Tertiary precinct improvement | Public health and environmental outcomes Renewing or replacing assets Planned increase in levels of service | Renewal, rationalisation and upgrade of transport infrastructure to improve safety, accessibility and amenity in the area covered by the Tertiary Precinct Project (Harbour Terrace, Union Street East, Clyde Street and Albany Street). | Options are being considered through an indicative business case that is currently underway. | New capital and renewals | $20 million | 2031-36 | Likely decrease in emissions |
City to waterfront cycling / pedestrian connection | Public health and environmental outcomes Planned increase in levels of service | New cycling and pedestrian bridge connecting the city centre and waterfront. Existing connections (i.e. level crossing at St Andrews Street, heritage pedestrian over bridge behind Railway Station and route across Castle and Wharf Street) have a number of issues including accessibility for cyclists and mobility impaired users, directness of route and safety issues. | Concept options have been considered through an indicative business case. The project was put on hold following the COVID-19 pandemic. Detailed design options will be explored through the detailed business case phase. | New capital | $20 million | 2024 - 28 | Likely decrease in emissions |
Major centres upgrade | Public health and environmental outcomes Renewing or replacing assets | Improve the safety and accessibility of main streets within Dunedin’s commercial shopping centres. | Design and phasing options are still to be determined | New capital and renewals | $9.4 million | 2024 -31 | Likely no effect on emissions |
St Clair Seawall | Renewing or replacing assets Resilience to natural hazards Public Health and environmental outcomes | Renew and upgrade the existing coastal defences at St Clair Beach to build resilience and to benefit public safety, access and environmental outcomes at the coast. | Design options are still to be determined. The project is likely to include replacement of the existing sea wall and/ or supplementary protection with sand retention structure(s) or similar. | New capital | $100.3 million | 2032-2036 | Likely no effect on emissions |
Mosgiel heavy Vehicle by-pass | Public health and environmental outcomes Planned increase in levels of service | Re-routing heavy vehicles along another route rather than through Mosgiel town centre. | Route and design options are still to be determined. | New capital | $15 million | 2042-2051 | Likely increase in emissions |
Dunedin central city bypass | Public health and environmental outcomes Planned increase in levels of service. | Re-routing state highway traffic away from the central city. | Route and design options are still to be determined. | New capital | $35 million | 2032-2041 | Likely increase in emissions |
Harbour Arterial corridor | Planned increases in levels of service. Response to growth in demand. | Improvements to the Harbour Arterial corridor to improve safety and efficiency to provide an alternative to accessing the CBD from the south. The route will utilise the following roads (south to north): Caversham Motorway (SH1)/Andersons Bay Road intersection – Andersons Bay Road – Strathallan Street – Wharf Street - Thomas Burns Street - Ward Street – Ward Street overbridge - Frederick Street/Anzac Avenue intersection. | Single stage business case to be started in early 2021. | New capital | $16.3 million | 2021 - 2027 | Likely increase in emissions |
Parking Management | Planned increases in levels of service Response to growth in demand. | Technology for wayfinding of parking, replacing parking meters with more efficient technology, consolidation of off-street parking, installation of technology to assist more reliable parking and a review of the parking costs across the city. | A parking management policy is in development. A single stage business case assessing options to improve the parking experience will begin in 2021. | New capital | $10.9 million | 2021 - 2026 | Likely decrease in emissions |
Mosgiel and Burnside Park & Ride | Planned increases in levels of service Response to growth in demand. | Installation of a park and ride at Mosgiel and Burnside to enable people to take the bus into the CBD. | A single stage business case will need to be developed. | New capital | $10.2 million | 2023 - 2029 | Likely decrease in emissions |
Corridor Safety Improvements and bus priority measures | Public health and environmental outcomes Planned increases in levels of service Response to growth in demand. | Safety improvements for pedestrians in the CBD and bus priority measures especially around Princess Street. | A single stage business case will need to be developed. | New capital | $6.4 million | 2021 - 2024 | Likely decrease in emissions |
Central cycle and pedestrian safety | Public health and environmental outcomes Planned increases in levels of service Response to growth in demand. | Safety improvements and provision for pedestrians and cyclists on St Andrew Street from Anzac Avenue to Great King street, George Street to Cumberland Street, Anzac Avenue to the Harbour Circuit via Minerva Street. | A single stage business case will need to be developed. | New capital | $4.8 million | 2021 - 2026 | Likely decrease in emissions |
Bike Hubs | Public Health and environmental outcomes. Planned increase in levels of service. | Creation of bike hubs where people are cycling particularly to work. | A single stage business case will need to be developed. | New capital | $2.45 million | 2022 - 2027 | Likely decrease in emissions |
Capital renewal programme | Renewing or replacing assets. | Planned renewals to pavements, seawalls, retaining walls, footpaths and kerb and channel to maintain existing levels of service in the transport network. | Range of design options will be considered subject to alignment with NZTA’s One Network Road Classification system. | Renewals | $245.8 million | 2021-2031 | Likely no effect on emissions |