Dredging trials using trailing suction hopper dredging (TSHD) equipment were carried out across both flood- and ebb-tide deltas at the artificial entrance to the Gippsland Lakes (Victoria, Australia) during March to July 2008. These trials were designed to evaluate options for future sediment management at this location. Regular hydrodata capture before, during, and after the TSHD trials period allowed geographic information systems (GIS)–based monitoring of TSHD performance and overall flood- and ebb-tide delta bathymetric evolution. Results show that the TSHD dredging approach is far more effective in terms of net flood- and ebb-tide delta volumetric reduction, and navigation channel maintenance, than previously used maintenance dredging approaches (which relied upon the use of side-cast and cutter-suction dredging equipment). However, after the culmination of the trials, channel infill quickly took place. The information derived from analysis of the time-series bathymetry used for this study offers baseline information in support of future stakeholder consensus building regarding options for maintaining navigability and, thus, port viability.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 26 • No. 6