Ageing roads will need attention and significant investment is required in Three Waters assets, Dunedin councillors have been advised, as they consider the decades ahead.
The Dunedin City Council is weighing up how to approach its draft 2025-34 long-term plan.
Part of this involved taking a preliminary look yesterday at a 30-year strategy for infrastructure.
Half of Dunedin’s sealed pavement was 60 years or older, councillors were told at a council workshop.
The maximum number of times a road should be sealed was six and 16.9% of the network was facing its last seal.
Retaining a consistent approach for replacing infrastructure and getting work done when it needed to happen were key to managing the situation, council transport group manager Jeanine Benson said.
Her presentation highlighted that planned expenditure in the next nine years would focus on taking opportunities for new spending when the national funding environment became more favourable.
One positive was replacement of major bridges should not be needed in the next decade, she said.
Information presented at the workshop about Three Waters indicated much of this work could not be pushed into the second half of the 30-year horizon.
Intended work includes decommissioning the Mosgiel Wastewater Treatment Plant and conveying wastewater to Green Island for treatment, upgrading the water supply to Port Chalmers and investigating new alternative water sources for the city.
The council has yet to settle on how flooding and wastewater issues might best be alleviated in Surrey St, Caversham.
