Our History

The Morven Glenavy Ikawai District has a long association with irrigation, shaped by the challenges of a dry coastal environment and the determination of local farming communities to create reliable and productive land. Early irrigation efforts in South Canterbury date back to the late 19th and early 20th centuries, when water management was first recognised as essential to sustaining agriculture in the region.

Large-scale irrigation development gained momentum in the mid-20th century through government-led schemes, including the Redcliffs Irrigation Scheme. These projects marked a significant shift, providing structured water delivery, improving farm productivity, and laying the foundations for the modern irrigation networks operating today.

Building on this legacy, the Morven Glenavy Ikawai Irrigation Scheme (MGI) evolved through changes in infrastructure, governance, and ownership. Over time, the scheme transitioned to farmer ownership and locally-led management, strengthening accountability and supporting long-term decision-making aligned with shareholder and community interests.

Continued investment has modernised the scheme through infrastructure upgrades, automation, and improved operational systems. Environmental management has also become an increasingly important focus, with practices developed to support sustainable water use and protect waterways within and beyond the scheme’s command area.

A key milestone in MGI’s recent history was the development of the Waihao Downs Irrigation Scheme. This 3,300-hectare pumped scheme is a wholly owned subsidiary of MGI. Designed and constructed by Rooney Earthmoving Limited, it was commissioned between April and May 2016 and completed approximately 12 months ahead of schedule.

Today, MGI is recognised as a leading irrigation scheme in New Zealand, combining efficient water delivery with a strong commitment to environmental stewardship. This includes initiatives to enhance environmental outcomes within the scheme area and to augment flows in the Waihao River, which flows into the Wainono Lagoon.

Operating from its office and depot in Glenavy, MGI continues to build on generations of irrigation development in South Canterbury, supporting productive farming, resilient rural communities, and responsible water management.