Topic
Dredging
About: Dredging is a research topic. Over the lifetime, 3300 publications have been published within this topic receiving 28325 citations.
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01 Jan 1987
6 citations
TL;DR: The United States Government is committed to providing continuing support to the port industry's goals for enhancing economic growth while protecting, conserving and restoring natural resources within coastal aquatic lands as mentioned in this paper.
Abstract: Delays in dredging and inability to dredge the nation's harbors, due to the presence of contaminated sediments and the lack of environmentally acceptable disposal sites are interfering with shipping activities and hampering trade growth. The United States Government is committed to provide continuing support to the port industry's goals for enhancing economic growth while protecting, conserving and restoring natural resources within coastal aquatic lands. The government's commitment has resulted in the articulation of a national dredging policy in the Action Plan for Improvement of the Dredging Process in the United States. This national challenge calls for a systematic and consistent decision making approach to dredging and disposal including contaminated sediment management. In building an effective decision mak ing framework for costs, risk reduction and potential beneficial uses of the disposal material must be considered in identifying and evaluating environmentally acceptable and cost-effective disp...
6 citations
6 citations
Journal Article•
6 citations
TL;DR: The coastal lagoon adjacent to the River Murray mouth has been filling with sediment brought in from the ocean by tidal currents for at least the last 170 years, and in 2002 a program of dredging commenced in the lagoon to remove the millions of cubic metres of sediment that had accumulated there as discussed by the authors.
Abstract: The coastal lagoon adjacent to the River Murray mouth has been filling with sediment brought in from the ocean by tidal currents for at least the last 170 years. Recently, reduced river flows have led to an increase in the rate of infilling, and in 2002 a program of dredging commenced in the lagoon to remove the millions of cubic metres of sediment that had accumulated there. Elsewhere, researchers have argued that it should be possible to manipulate the natural tidal asymmetry and, in doing so, alter the balance between ebb and flood dominance in a coastal lagoon. If this is possible in practice, it should be feasible to move a lagoon towards a self-flushing mode through a program of strategic dredging. Geographic Information Systems (GISs) were used to interpret bathymetric survey data in the lagoon so that channel characterisation, changes to sediment volume, and basin hypsometry could be analysed. Analysis of water-level data in the lagoon showed that flood durations were usually shorter than...
6 citations