Freeboard 01
Freeboard 01 : (1) A factor of safety typically used in relation to the setting of floor levels, levee crest levels, etc. It is usually expressed as a height above a flood planning level and/or the adopted flood mitigation standard. Freeboard provides a factor of safety to compensate for wave action, localised hydraulic behaviour, settlement and other effects such as 'greenhouse' and climate change. (2) The vertical distance between a stated water level and the top of dam
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