The tallest of all the aqueducts (but not the longest) this aqueduct developed a sag early in its life and until the 1940s was supported on auxiliary trestles. It was replaced with an inverted syphon of 24" diameter concrete pipes in the 1960s and subsequently left to fall down of its own accord. Before that occurred however, people had salvaged nearly all the long wide and thick Kauri planks which the flume was made of. These were remarkable pieces of timber - shipped, as was all Kauri, from the Coromandel or Great Barrier Island or the Waitakeres - machined in Oamaru (we must presume) and installed with a tongue and grooved system to render the flume water tight before thick layers of pitch were applied to all surfaces not in contact with the water.
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Photo taken in Papakaio, New Zealand
Misplaced? Suggest new location