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Story: Irrigation and drainage

Rangitātā diversion race intake

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Rangitātā diversion race intake

The Rangitātā diversion race leads water from the Rangitātā River, across the head of the mid-Canterbury Plains, to the Rakaia River. This is the start of the race in the Rangitātā River. Water taken from this race irrigates 64,000 hectares of farmland. Water that is not taken from the race flows through a hydroelectric power station into the Rakaia River, and generates about 27 megawatts of electricity each year.

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How to cite this page

Terry Heiler, Irrigation and drainage – Beginnings of irrigation, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/19602/rangitata-diversion-race-intake (accessed 4 June 2026).

Story by Terry Heiler, published 1 March 2009.