This project demonstrates how corridor-level planning can align renewal programmes and improve delivery efficiency in complex urban environments.

Vitruvius undertook corridor-scale assessments across Beach Haven, Onewa Road and Browns Bay Road to align Healthy Waters’ stormwater renewal priorities with Auckland Transport’s FY25/26 road rehabilitation programme. The objective was to identify stormwater renewals, operational issues and treatment opportunities that could be delivered concurrently with planned road works, supporting a coordinated “dig once” approach.

These corridors are high-traffic, community-sensitive environments with constrained working space, dense utilities and limited access. Asset condition, operational performance, flooding behaviour and capacity constraints were assessed using an integrated evidence base combining asset inspections, modelling outputs, service requests (RFS), condition data and operational insight.

The technical review was undertaken alongside engagement with Healthy Waters Operations, Planning, Design and Delivery, Asset Management teams and maintenance partners to validate findings, confirm constructability constraints and address data gaps. Technical and operational inputs informed prioritisation of interventions, balancing resilience and risk reduction objectives with budget availability and programme timing considerations, while supporting long-term network performance.

Assessments were completed within a six-week timeframe to align with Auckland Transport’s renewal programme. Coordinated planning enabled integration of stormwater and road works, minimising disruption to residents, businesses and road users, avoiding unnecessary re-excavation, and reducing duplicate traffic management across programmes.

If you are looking to better align renewal programmes, optimise investment or reduce community disruption in complex urban environments, our team would welcome a conversation. Please get in touch via our website: https://vitruvius.co.nz/contact/ 

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