Wivenhoe Dam and Power Station, Australia

Wivenhoe Dam is an earthen dam with a concrete gravity structure. It is 59 meters high and 2,300 meters long. It is a sluice dam, with five steel gates to control the release of water downstream. The flood gates are among the largest of their kind in the world.

4 million cubic meters of earth and rock and 140,000 cubic meters of concrete were used to build the dam.

Wivenhoe hydroelectric power station is mostly underground. It is connected to Wivenhoe Dam via an open intake channel. The Split Yard Creek upper dam is connected by two steel and concrete lined underground tunnels, 420 meters long and ranging in diameter from 6.8 to 8.5 metres. Its two 250 MW Francis units gave it a production capacity of 500 MW when it began commercial operation.