The Waingaro Quarry has been part of the Ngāruawāhia landscape since 1947, providing vital resources for homes, roads and other projects and developments over the decades.

As the quarry approaches its current capacity, plans are being developed to gradually expand the quarry pit into another part of the existing site.

The proposed expansion includes the option to establish a construction material and aggregate recycling yard onsite in the future.

Also, the expansion will involve the removal of some native plants and changes to how streams are managed onsite. Daylighting a piped stream, as well as diverting a small section of stream, will ensure continued fish passage for species like the giant kōkopu.

Stevenson’s General Manager – Aggregates, Kurt Hine, explains that we’re in the early stages of making plans for the quarry to continue to operate for another 50 years.

“Aggregate will continue to be a much-needed resource within the Golden Triangle – the area between Auckland, Hamilton and Tauranga – with stable industrial construction activity and major infrastructure projects set to kick off in the coming years,” says Kurt.

Every new kilometre of state highway requires between 14,000 and 20,000 tonne of aggregate. To build an average house, you need about 250 tonne of aggregate.

The reliable supply of local, high-quality aggregate is critical for future developments and major transport projects like the SH1 Cambridge to Piarere expressway, due to start construction in late 2026.

Local aggregate supply is not just about meeting demands, it’s essential for reducing transportation costs and reducing the carbon footprint of construction projects.

“Through the proposed expansion, we’re supporting local with a secure supply of aggregate to support future growth in the region and Golden Triangle,” says Kurt.

Sharing the proposed expansion plans with the community and gathering their feedback is important, so Stevenson is opening the quarry gates and inviting the local community to learn more about the proposed plans and check out how the quarry works.

“At this stage, we’re keen to share our early plans and hear what matters from our local community and neighbours. While the quarry is a cornerstone of the Waingaro area, we still want to hear from residents and answer their questions.”

On Sunday 23 March from 10am to 2pm, the Waingaro Quarry will host a community open day. This free event is an opportunity for neighbours and residents to learn how the quarry works and its future development plans for the site.

Attendees will have the chance to safely view the current quarry pit and get up close to some impressive machinery. There will also be activities for kids and trucks to enjoy.

Learn more about the proposed Waingaro Quarry expansion at stevenson.co.nz/waingaroproject