Main photo left: A flood tops the Waitaki dam earlier this year. Main photo right: Trestle bridges and a coffer dam stretch across the river 1929-30. Smaller photos clockwise from top left: Project engineer R.H. Packwood, Lord Bledisloe (left) and... : Harnessing the current

Main photo left: One of the turbine moulds is reconstructed in situ in the dam. Main photo right: The powerhouse (at top) nears completion. Smaller photos clockwise from top left: In the powerhouse at the opening of the Waitaki dam on October 27, 1934.... : Harnessing the current