For Hydroelectric Usage
- Manapouri Power Station - Machine hall 111 m long, 18 m wide, 34 m high, and road access tunnel 2040 m long, 6.7 m wide and high, with a semi-circular arch roof.
- Manapouri Tailrace - 2 tunnels - original tailrace tunnel 9817 m long, 9.2 m diameter horseshoe section, commenced 1964, breakthrough 1968 drill-and-blast construction, 16 deaths. Second tailrace tunnel 9829 m long, 10.05 m diameter, circular section, commenced 1997, breakthrough 2001, commissioned April 2002, tunnel boring machine construction, 0 deaths.
- Tongariro Power Scheme
Read more about this topic: List Of Tunnels In New Zealand
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