Gisborne District Council Watermains Renewals

Article written by Karly Shields – Senior Civil Engineer

The Gisborne District Council (GDC) FY 2025 Watermain Renewals project focused on replacing 1.95 kilometers of aging asbestos cement watermains as part of the council’s program to address at-risk infrastructure. Vitruvius was engaged to deliver detailed design services, including project management, early contractor involvement, 3D modelling, connection drawings, and tender documentation. 

With a local staff member based in Gisborne, Vitruvius maintained strong communication and provided responsive support throughout the project. This local presence was instrumental in managing stakeholder relationships and ensuring the project stayed on track. Vitruvius expanded on the GDC code of practice by recommending the use of ductile iron fittings and additional Gibault and Dismantling connections in the design, prioritising durability and simplified future maintenance—recommendations that GDC readily adopted. 

Vitruvius delivered six consistent, high-quality drawing packages ahead of schedule, allowing GDC to meet their fiscal goals and prepare for construction within the required timeframe. Safety in Design principles were applied to optimise construction efficiency and reduce risks, ensuring the best outcomes for installation. 

This project demonstrates Vitruvius’ ability to provide tailored, practical, and high-quality engineering solutions that address the unique needs of the client and their infrastructure, further strengthening our reputation for delivering reliable and innovative outcomes.

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Figure 1: As-built of main at Jellicoe St. Vitruvius design tying into new pipe work

Figure 2: Example of existing service crossings