Dormer Construction is progressing well on the Riccarton–Ilam Wastewater System upgrade, with completion now expected in early 2026.
Starting 20 October, trenching and excavation will begin at the Maidstone/Waimairi intersection, lasting approximately nine weeks. Minor tidy-up works will follow in early 2026.
Traffic Impacts:
- Maidstone Road remans one-way westbound only between Ilam Road and Waimairi Road.
- Waimairi Road (North side):
No Exit at the north side of Waimairi Road (near the intersection).
You can only enter this area (North side of Waimairi Road) if you’re coming from:
-
- South on Waimairi Road, or
- West on Maidstone Road.
- No left turn entry from the east side of Maidstone Road (this is the current one-way section).
- A 30km/h speed limit will be in place for worker safety during the works.
- Please follow all traffic and detour signage and keep an eye out for any changes in traffic management.
Other key information:
- Customer parking for the shops on Waimairi Road remains available.
- Key works on existing watermains will be completed at night between 9pm and 6am (Monday to Thursday)
- Any changes to bus routes will be shown with signage. For information on bus routes, visit www.metroinfo.co.nz.
On-street parking may continue to be limited.
* Please remember that UC have parking available on the Dovedale site.
All the details of this work, including traffic impacts at the intersection and night works, are available at this link
Thank you for your patience while works are ongoing and traffic management is in place.
Dormer Construction apologise for any inconvenience and will be working hard to reduce the impact as much as possible as they work through the final phases of this work.
For more information, or to keep up to date on the project, visit www.ccc.govt.nz/ilam-wastewater
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