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Story: Irrigation and drainage

Open drains

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Open drains

If open drains are to continue to be effective, they need to be protected from grazing stock and kept free of weeds that slow water flow. This is a good example of a well-maintained open drain.

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Otago Regional Council

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How to cite this page

Terry Heiler, Irrigation and drainage – Drainage, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/19647/open-drains (accessed 4 June 2026).

Story by Terry Heiler, published 1 March 2009.