1 Season
28 Episode
Colossal construction - Season 1 Episode 27 Manapouri Tunnel
In order to tap the vast potential energy of New Zealand's Manapouri lake, a six mile tunnel must be carved out of some of the toughest rock on the planet, in a place where yearly rainfall is measured in feet instead of inches.
- Year: 2009
- Country: United States of America
- Genre: Documentary
- Studio: Discovery
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