Improvement of Operations and Maintenance Techniques Research Program. Advance Maintenance in Entrance Channels: Evaluation of Selected Projects. Hydraulic Model Investigation

摘要

One of the techniques used by the US Army Corps of Engineers to alleviate the high costs of maintenance dredging necessary to provide adequate dimensions in the entrance channels to the ports and harbors of the United States is known as advance maintenance dredging. Advance maintenance is defined as the channel dredging dimensions beyond the dimensions economically feasible required to maintain the dimensions during the budget year or until the next dredging cycle. This report evaluated the effectiveness of advance maintenance in producing desired results by examining its effects on the shoaling characteristics of 10 entrance channels. Keywords: Advance maintenance, Channel shoaling, Dredging, Maintenance dredging, Overdepth dredging, Overwidth dredging. (JES)