THE WIVENHOE DAM QUEENSLAND
Full Text ⇒ HERE ⇐ Very Comprehensive
…Wivenhoe has a clay core and an earthen wall which is lined on the outside with rocks. Unlike Somerset Dam which has a concrete wall, Wivenhoe has no structure which could withstand the force of water flowing over its wall.
If over-topped by flood-water, the Wivenhoe wall would quickly erode and fail, releasing the contents of a full Wivenhoe to flow down the Brisbane River at torrential speed… …