Assessment of the factors controlling the long-term fate of dredged material deposited in unconfined subaqueous disposal areas.
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The distribution or dispersion of unconfined, subaqueous dredged material has received much attention for reasons of economy and pollution. If polluted it may affect the fauna and flora of surrounding areas. On the other hand, the material may quickly return to the dredged channel and require frequent maintenance dredging, proving the use of diked disposal areas to be more economical. The major objective of this literature study was to assess the factors that affect the long-term fate of dredged material deposited in unconfined, subaqueous disposal areas. These fundamental factors are thoroughly discussed in the report. In addition, the present knowledge of various methods and their limitations for determining dredged material dispersion were reviewed.