This secluded site in Wainuiomata once housed a functioning power plant as early as 1921 which was built to support the construction of the Orongorongo Catchment and its associated infrastructure and camp. Water from the Morton Dam overflow was channelled onto turbines, generating electricity to power air compressors and other essential equipment. Most importantly, the power enabled the boring of a 10,494-foot (3.2 km) tunnel, minus what was already cut out by hand. It also supplied fresh air to the tunnel face and provided electric lighting for both the camp and tunnel.
The plant is completely hidden in native bush and it’s exact location remains known to only a few. Prior to its construction, engineers estimated it would produce around 80 horsepower.
Credits
A special thanks to Lance Stewart for locating this site.
