A synthesis of the changing sources, transport and delivery of sand to the Burdekin River Delta: implications for the stability of the Bowling Green spit: A Report for Water Planning Ecology, Science and Technology Division, Department of Environment and Science
Other Publication ResearchOnline@JCUAbstract
This document synthesises the available science relevant to understanding sand transport through the Burdekin Basin. *Beaches are predominately (>90%) composed of the fine and medium sand fraction (125 to 500 μm) and hence the riverine supply of this fraction is most important to replenish the coastal zone of this region. *Predominantly transported in flood events as ‘suspended bedload *Despite the limited sand transported past the Burdekin Falls Dam since construction, the increase in sediment loads from the catchment area below the dam have more than accounted for the reduced supply from the dam relative to the ‘pre-development’ (i.e. prior to the arrival of Europeans) period. *We conclude that the additional water infrastructure proposed (i.e. raising the Burdekin Falls Dam spillway; dams in the catchment area above the Burdekin Falls Dam; Urannah Dam) would have a negligible influence on the current coastal supply of fine and medium sand from the Burdekin River.
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21/38
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978-0-6452143-5-2
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27
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TropWATER, James Cook University
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Townsville, QLD, Australia
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