We are upgrading wastewater infrastructure in Ilam with the installation of new, larger pipes that will help meet increasing demand from our growing city.
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This wastewater upgrade began in early September 2024, with work progressing along Clyde and Creyke roads before reaching the intersection at Ilam Road in mid-2025.
Work is now focused on Maidstone Road, between Ilam Road and Waimairi Road.
The project was initially expected to wrap up by mid-2026 but is currently ahead of schedule and could finish by April 2026.
Traffic impacts
10 July 2025 to mid-2026:
There is currently a westbound one-way system in place on Maidstone Road, from Ilam Road to Waimairi Road, with no entry onto Maidstone Road from Waimairi Road.
View the start works notice.(external link)
The Ilam wastewater upgrades have been creating extra delays around Memorial Avenue, so we've made some traffic signal phasing changes to help mitigate the problem. As part of a project to upgrade the traffic signals at the intersection of Memorial Avenue and Greers Road, we introduced a new right-turn phase from Greers Road (south), and we also made small light phasing changes at the intersections of Memorial Avenue/Grahams Road and Memorial Avenue/Ilam Road. The changes aim to help ease congestion associated with the Ilam works and to keep traffic flowing more smoothly through the area. The general work scope includes: Our contractor, Dormer Construction, will keep residents and businesses updated with start work notices and newsletters as the work progresses. We will also update subscribers of our newsletters(external link) about any project developments before work is scheduled to begin. View the previous newsletter updates below:
Project area map
