Station Road & Line Road Stormwater Renewals
The Station Road and Line Road Stormwater Renewals project involved the replacement of aging stormwater culverts at two residential locations in Glen Innes and Pukekohe. Delivered on behalf of Auckland Council, the works were critical to maintaining network performance and ensuring long-term resilience of local stormwater infrastructure.
Stellar Projects provided professional services for the replacement of two 450mm reinforced concrete rubber ring joint (RCRRJ) culverts, including full road reinstatement. The project required careful contract administration, quality assurance, and construction monitoring to manage changing site conditions while maintaining safety, programme control, and compliance.
Our role
Building on a strong track record delivering stormwater renewals for Auckland Council, Stellar Projects was engaged to provide end-to-end professional services, including Engineer to Contract and Engineer’s Representative roles, supported by Monitoring, Surveillance and Quality Assurance (MSQA).
Key to project success was proactive issue identification, clear communication with the contractor and client, and responsive management of variations arising from unforeseen ground conditions and access constraints.
ChallengesUnforeseen ground conditions presented technical and programme challenges, particularly at Line Road, where the construction methodology was required to change from directional drilling to open cut. This shift triggered design modifications, increased stakeholder engagement, and a revised programme and cost forecast.
Additional complexities included unknown services at Station Road and delayed site access at Line Road due to third‑party property constraints. The open-cut approach also required careful design coordination to avoid clashes with existing services and private property features.
Our approachStellar Projects maintained strong governance and delivery oversight throughout the project. Contractor claims and variations were carefully reviewed, quality was monitored against drawings and specifications, and health and safety performance was supported through audits and regular follow‑ups.
Accurate cost forecasting and transparent reporting enabled the client to secure additional funding early, ensuring financial control was maintained despite changes in scope. A collaborative, best‑practice approach to documentation and contract compliance helped streamline decision‑making and maintain progress under evolving conditions.
Outcomes and highlightsDespite the challenges, both culvert renewals were successfully completed, including full road reinstatement, with quality outcomes achieved to the client’s satisfaction. The project remained within the revised cost forecast, supported by rigorous monitoring and proactive management.
Stellar Projects added value through early risk identification, structured cost control, robust quality assurance, and effective stakeholder coordination, contributing to a well-managed outcome and a satisfied client. Key learnings from the project have further strengthened approaches to access management and early site readiness on future works.
